diff options
Diffstat (limited to 'src/corelib/tools')
| -rw-r--r-- | src/corelib/tools/qdatetime.cpp | 5685 | ||||
| -rw-r--r-- | src/corelib/tools/qdatetime.h | 426 | ||||
| -rw-r--r-- | src/corelib/tools/qdatetime_p.h | 151 | ||||
| -rw-r--r-- | src/corelib/tools/qdatetimeparser.cpp | 2047 | ||||
| -rw-r--r-- | src/corelib/tools/qdatetimeparser_p.h | 310 | ||||
| -rw-r--r-- | src/corelib/tools/qlocale.cpp | 2 | ||||
| -rw-r--r-- | src/corelib/tools/qtimezone.cpp | 997 | ||||
| -rw-r--r-- | src/corelib/tools/qtimezone.h | 188 | ||||
| -rw-r--r-- | src/corelib/tools/qtimezoneprivate.cpp | 926 | ||||
| -rw-r--r-- | src/corelib/tools/qtimezoneprivate_android.cpp | 257 | ||||
| -rw-r--r-- | src/corelib/tools/qtimezoneprivate_data_p.h | 1257 | ||||
| -rw-r--r-- | src/corelib/tools/qtimezoneprivate_icu.cpp | 508 | ||||
| -rw-r--r-- | src/corelib/tools/qtimezoneprivate_mac.mm | 333 | ||||
| -rw-r--r-- | src/corelib/tools/qtimezoneprivate_p.h | 493 | ||||
| -rw-r--r-- | src/corelib/tools/qtimezoneprivate_tz.cpp | 1155 | ||||
| -rw-r--r-- | src/corelib/tools/qtimezoneprivate_win.cpp | 927 | ||||
| -rw-r--r-- | src/corelib/tools/tools.pri | 30 |
17 files changed, 1 insertions, 15691 deletions
diff --git a/src/corelib/tools/qdatetime.cpp b/src/corelib/tools/qdatetime.cpp deleted file mode 100644 index 9220d210f1..0000000000 --- a/src/corelib/tools/qdatetime.cpp +++ /dev/null @@ -1,5685 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2019 The Qt Company Ltd. -** Copyright (C) 2016 Intel Corporation. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtCore module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qplatformdefs.h" -#include "private/qdatetime_p.h" -#if QT_CONFIG(datetimeparser) -#include "private/qdatetimeparser_p.h" -#endif - -#include "qdatastream.h" -#include "qset.h" -#include "qlocale.h" -#include "qdatetime.h" -#if QT_CONFIG(timezone) -#include "qtimezoneprivate_p.h" -#endif -#include "qregexp.h" -#include "qdebug.h" -#ifndef Q_OS_WIN -#include <locale.h> -#endif - -#include <cmath> -#ifdef Q_CC_MINGW -# include <unistd.h> // Define _POSIX_THREAD_SAFE_FUNCTIONS to obtain localtime_r() -#endif -#include <time.h> -#ifdef Q_OS_WIN -# include <qt_windows.h> -# ifdef Q_OS_WINRT -# include "qfunctions_winrt.h" -# endif -#endif - -#if defined(Q_OS_MAC) -#include <private/qcore_mac_p.h> -#endif - -QT_BEGIN_NAMESPACE - -/***************************************************************************** - Date/Time Constants - *****************************************************************************/ - -enum { - SECS_PER_DAY = 86400, - MSECS_PER_DAY = 86400000, - SECS_PER_HOUR = 3600, - MSECS_PER_HOUR = 3600000, - SECS_PER_MIN = 60, - MSECS_PER_MIN = 60000, - TIME_T_MAX = 2145916799, // int maximum 2037-12-31T23:59:59 UTC - JULIAN_DAY_FOR_EPOCH = 2440588 // result of julianDayFromDate(1970, 1, 1) -}; - -/***************************************************************************** - QDate static helper functions - *****************************************************************************/ - -static inline QDate fixedDate(int y, int m, int d) -{ - QDate result(y, m, 1); - result.setDate(y, m, qMin(d, result.daysInMonth())); - return result; -} - -/* - Division, rounding down (rather than towards zero). - - From C++11 onwards, integer division is defined to round towards zero, so we - can rely on that when implementing this. This is only used with denominator b - > 0, so we only have to treat negative numerator, a, specially. - */ -static inline qint64 floordiv(qint64 a, int b) -{ - return (a - (a < 0 ? b - 1 : 0)) / b; -} - -static inline int floordiv(int a, int b) -{ - return (a - (a < 0 ? b - 1 : 0)) / b; -} - -static inline qint64 julianDayFromDate(int year, int month, int day) -{ - // Adjust for no year 0 - if (year < 0) - ++year; - -/* - * Math from The Calendar FAQ at http://www.tondering.dk/claus/cal/julperiod.php - * This formula is correct for all julian days, when using mathematical integer - * division (round to negative infinity), not c++11 integer division (round to zero) - */ - int a = floordiv(14 - month, 12); - qint64 y = (qint64)year + 4800 - a; - int m = month + 12 * a - 3; - return day + floordiv(153 * m + 2, 5) + 365 * y + floordiv(y, 4) - floordiv(y, 100) + floordiv(y, 400) - 32045; -} - -struct ParsedDate -{ - int year, month, day; -}; - -// prevent this function from being inlined into all 10 users -Q_NEVER_INLINE -static ParsedDate getDateFromJulianDay(qint64 julianDay) -{ -/* - * Math from The Calendar FAQ at http://www.tondering.dk/claus/cal/julperiod.php - * This formula is correct for all julian days, when using mathematical integer - * division (round to negative infinity), not c++11 integer division (round to zero) - */ - qint64 a = julianDay + 32044; - qint64 b = floordiv(4 * a + 3, 146097); - int c = a - floordiv(146097 * b, 4); - - int d = floordiv(4 * c + 3, 1461); - int e = c - floordiv(1461 * d, 4); - int m = floordiv(5 * e + 2, 153); - - int day = e - floordiv(153 * m + 2, 5) + 1; - int month = m + 3 - 12 * floordiv(m, 10); - int year = 100 * b + d - 4800 + floordiv(m, 10); - - // Adjust for no year 0 - if (year <= 0) - --year ; - - return { year, month, day }; -} - -/***************************************************************************** - Date/Time formatting helper functions - *****************************************************************************/ - -#if QT_CONFIG(textdate) -static const char qt_shortMonthNames[][4] = { - "Jan", "Feb", "Mar", "Apr", "May", "Jun", - "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" -}; - -static int qt_monthNumberFromShortName(QStringRef shortName) -{ - for (unsigned int i = 0; i < sizeof(qt_shortMonthNames) / sizeof(qt_shortMonthNames[0]); ++i) { - if (shortName == QLatin1String(qt_shortMonthNames[i], 3)) - return i + 1; - } - return -1; -} -static int qt_monthNumberFromShortName(const QString &shortName) -{ return qt_monthNumberFromShortName(QStringRef(&shortName)); } - -static int fromShortMonthName(const QStringRef &monthName) -{ - // Assume that English monthnames are the default - int month = qt_monthNumberFromShortName(monthName); - if (month != -1) - return month; - // If English names can't be found, search the localized ones - for (int i = 1; i <= 12; ++i) { - if (monthName == QLocale::system().monthName(i, QLocale::ShortFormat)) - return i; - } - return -1; -} -#endif // textdate - -#if QT_CONFIG(datestring) -struct ParsedRfcDateTime { - QDate date; - QTime time; - int utcOffset; -}; - -static ParsedRfcDateTime rfcDateImpl(const QString &s) -{ - ParsedRfcDateTime result; - - // Matches "Wdy, dd Mon yyyy HH:mm:ss ±hhmm" (Wdy, being optional) - QRegExp rex(QStringLiteral("^(?:[A-Z][a-z]+,)?[ \\t]*(\\d{1,2})[ \\t]+([A-Z][a-z]+)[ \\t]+(\\d\\d\\d\\d)(?:[ \\t]+(\\d\\d):(\\d\\d)(?::(\\d\\d))?)?[ \\t]*(?:([+-])(\\d\\d)(\\d\\d))?")); - if (s.indexOf(rex) == 0) { - const QStringList cap = rex.capturedTexts(); - result.date = QDate(cap[3].toInt(), qt_monthNumberFromShortName(cap[2]), cap[1].toInt()); - if (!cap[4].isEmpty()) - result.time = QTime(cap[4].toInt(), cap[5].toInt(), cap[6].toInt()); - const bool positiveOffset = (cap[7] == QLatin1String("+")); - const int hourOffset = cap[8].toInt(); - const int minOffset = cap[9].toInt(); - result.utcOffset = ((hourOffset * 60 + minOffset) * (positiveOffset ? 60 : -60)); - } else { - // Matches "Wdy Mon dd HH:mm:ss yyyy" - QRegExp rex(QStringLiteral("^[A-Z][a-z]+[ \\t]+([A-Z][a-z]+)[ \\t]+(\\d\\d)(?:[ \\t]+(\\d\\d):(\\d\\d):(\\d\\d))?[ \\t]+(\\d\\d\\d\\d)[ \\t]*(?:([+-])(\\d\\d)(\\d\\d))?")); - if (s.indexOf(rex) == 0) { - const QStringList cap = rex.capturedTexts(); - result.date = QDate(cap[6].toInt(), qt_monthNumberFromShortName(cap[1]), cap[2].toInt()); - if (!cap[3].isEmpty()) - result.time = QTime(cap[3].toInt(), cap[4].toInt(), cap[5].toInt()); - const bool positiveOffset = (cap[7] == QLatin1String("+")); - const int hourOffset = cap[8].toInt(); - const int minOffset = cap[9].toInt(); - result.utcOffset = ((hourOffset * 60 + minOffset) * (positiveOffset ? 60 : -60)); - } - } - - return result; -} -#endif // datestring - -// Return offset in [+-]HH:mm format -static QString toOffsetString(Qt::DateFormat format, int offset) -{ - return QString::asprintf("%c%02d%s%02d", - offset >= 0 ? '+' : '-', - qAbs(offset) / SECS_PER_HOUR, - // Qt::ISODate puts : between the hours and minutes, but Qt:TextDate does not: - format == Qt::TextDate ? "" : ":", - (qAbs(offset) / 60) % 60); -} - -#if QT_CONFIG(datestring) -// Parse offset in [+-]HH[[:]mm] format -static int fromOffsetString(const QStringRef &offsetString, bool *valid) noexcept -{ - *valid = false; - - const int size = offsetString.size(); - if (size < 2 || size > 6) - return 0; - - // sign will be +1 for a positive and -1 for a negative offset - int sign; - - // First char must be + or - - const QChar signChar = offsetString.at(0); - if (signChar == QLatin1Char('+')) - sign = 1; - else if (signChar == QLatin1Char('-')) - sign = -1; - else - return 0; - - // Split the hour and minute parts - const QStringRef time = offsetString.mid(1); - int hhLen = time.indexOf(QLatin1Char(':')); - int mmIndex; - if (hhLen == -1) - mmIndex = hhLen = 2; // [+-]HHmm or [+-]HH format - else - mmIndex = hhLen + 1; - - const QStringRef hhRef = time.left(hhLen); - bool ok = false; - const int hour = hhRef.toInt(&ok); - if (!ok) - return 0; - - const QStringRef mmRef = time.mid(mmIndex); - const int minute = mmRef.isEmpty() ? 0 : mmRef.toInt(&ok); - if (!ok || minute < 0 || minute > 59) - return 0; - - *valid = true; - return sign * ((hour * 60) + minute) * 60; -} -#endif // datestring - -static constexpr int daysInUsualMonth(int month) // (February isn't usual.) -{ - // Long if odd up to July = 7, or if even from 8 = August onwards: - return Q_ASSERT(month != 2 && month > 0 && month <= 12), 30 | ((month & 1) ^ (month >> 3)); -} - -/***************************************************************************** - QDate member functions - *****************************************************************************/ - -/*! - \since 4.5 - - \enum QDate::MonthNameType - - This enum describes the types of the string representation used - for the month name. - - \value DateFormat This type of name can be used for date-to-string formatting. - \value StandaloneFormat This type is used when you need to enumerate months or weekdays. - Usually standalone names are represented in singular forms with - capitalized first letter. -*/ - -/*! - \class QDate - \inmodule QtCore - \reentrant - \brief The QDate class provides date functions. - - - A QDate object encodes a calendar date, i.e. year, month, and day numbers, - in the proleptic Gregorian calendar by default. It can read the current date - from the system clock. It provides functions for comparing dates, and for - manipulating dates. For example, it is possible to add and subtract days, - months, and years to dates. - - A QDate object is typically created by giving the year, month, and day - numbers explicitly. Note that QDate interprets two digit years as presented, - i.e., as years 0 through 99, without adding any offset. A QDate can also be - constructed with the static function currentDate(), which creates a QDate - object containing the system clock's date. An explicit date can also be set - using setDate(). The fromString() function returns a QDate given a string - and a date format which is used to interpret the date within the string. - - The year(), month(), and day() functions provide access to the - year, month, and day numbers. Also, dayOfWeek() and dayOfYear() - functions are provided. The same information is provided in - textual format by the toString(), shortDayName(), longDayName(), - shortMonthName(), and longMonthName() functions. - - QDate provides a full set of operators to compare two QDate - objects where smaller means earlier, and larger means later. - - You can increment (or decrement) a date by a given number of days - using addDays(). Similarly you can use addMonths() and addYears(). - The daysTo() function returns the number of days between two - dates. - - The daysInMonth() and daysInYear() functions return how many days - there are in this date's month and year, respectively. The - isLeapYear() function indicates whether a date is in a leap year. - - \section1 Remarks - - \section2 No Year 0 - - There is no year 0. Dates in that year are considered invalid. The year -1 - is the year "1 before Christ" or "1 before current era." The day before 1 - January 1 CE, QDate(1, 1, 1), is 31 December 1 BCE, QDate(-1, 12, 31). - - \section2 Range of Valid Dates - - Dates are stored internally as a Julian Day number, an integer count of - every day in a contiguous range, with 24 November 4714 BCE in the Gregorian - calendar being Julian Day 0 (1 January 4713 BCE in the Julian calendar). - As well as being an efficient and accurate way of storing an absolute date, - it is suitable for converting a Date into other calendar systems such as - Hebrew, Islamic or Chinese. The Julian Day number can be obtained using - QDate::toJulianDay() and can be set using QDate::fromJulianDay(). - - The range of dates able to be stored by QDate as a Julian Day number is - for technical reasons limited to between -784350574879 and 784354017364, - which means from before 2 billion BCE to after 2 billion CE. - - \sa QTime, QDateTime, QDateEdit, QDateTimeEdit, QCalendarWidget -*/ - -/*! - \fn QDate::QDate() - - Constructs a null date. Null dates are invalid. - - \sa isNull(), isValid() -*/ - -/*! - Constructs a date with year \a y, month \a m and day \a d. - - If the specified date is invalid, the date is not set and - isValid() returns \c false. - - \warning Years 1 to 99 are interpreted as is. Year 0 is invalid. - - \sa isValid() -*/ - -QDate::QDate(int y, int m, int d) -{ - setDate(y, m, d); -} - - -/*! - \fn bool QDate::isNull() const - - Returns \c true if the date is null; otherwise returns \c false. A null - date is invalid. - - \note The behavior of this function is equivalent to isValid(). - - \sa isValid() -*/ - -/*! - \fn bool QDate::isValid() const - - Returns \c true if this date is valid; otherwise returns \c false. - - \sa isNull() -*/ - -/*! - Returns the year of this date. Negative numbers indicate years - before 1 CE, such that year -44 is 44 BCE. - - Returns 0 if the date is invalid. - - \sa month(), day() -*/ - -int QDate::year() const -{ - if (isNull()) - return 0; - - return getDateFromJulianDay(jd).year; -} - -/*! - Returns the number corresponding to the month of this date, using - the following convention: - - \list - \li 1 = "January" - \li 2 = "February" - \li 3 = "March" - \li 4 = "April" - \li 5 = "May" - \li 6 = "June" - \li 7 = "July" - \li 8 = "August" - \li 9 = "September" - \li 10 = "October" - \li 11 = "November" - \li 12 = "December" - \endlist - - Returns 0 if the date is invalid. - - \sa year(), day() -*/ - -int QDate::month() const -{ - if (isNull()) - return 0; - - return getDateFromJulianDay(jd).month; -} - -/*! - Returns the day of the month (1 to 31) of this date. - - Returns 0 if the date is invalid. - - \sa year(), month(), dayOfWeek() -*/ - -int QDate::day() const -{ - if (isNull()) - return 0; - - return getDateFromJulianDay(jd).day; -} - -/*! - Returns the weekday (1 = Monday to 7 = Sunday) for this date. - - Returns 0 if the date is invalid. - - \sa day(), dayOfYear(), Qt::DayOfWeek -*/ - -int QDate::dayOfWeek() const -{ - if (isNull()) - return 0; - - if (jd >= 0) - return (jd % 7) + 1; - else - return ((jd + 1) % 7) + 7; -} - -/*! - Returns the day of the year (1 to 365 or 366 on leap years) for - this date. - - Returns 0 if the date is invalid. - - \sa day(), dayOfWeek() -*/ - -int QDate::dayOfYear() const -{ - if (isNull()) - return 0; - - return jd - julianDayFromDate(year(), 1, 1) + 1; -} - -/*! - Returns the number of days in the month (28 to 31) for this date. - - Returns 0 if the date is invalid. - - \sa day(), daysInYear() -*/ - -int QDate::daysInMonth() const -{ - if (isNull()) - return 0; - - const ParsedDate pd = getDateFromJulianDay(jd); - if (pd.month == 2) - return isLeapYear(pd.year) ? 29 : 28; - - return daysInUsualMonth(pd.month); -} - -/*! - Returns the number of days in the year (365 or 366) for this date. - - Returns 0 if the date is invalid. - - \sa day(), daysInMonth() -*/ - -int QDate::daysInYear() const -{ - if (isNull()) - return 0; - - return isLeapYear(getDateFromJulianDay(jd).year) ? 366 : 365; -} - -/*! - Returns the week number (1 to 53), and stores the year in - *\a{yearNumber} unless \a yearNumber is null (the default). - - Returns 0 if the date is invalid. - - In accordance with ISO 8601, weeks start on Monday and the first - Thursday of a year is always in week 1 of that year. Most years - have 52 weeks, but some have 53. - - *\a{yearNumber} is not always the same as year(). For example, 1 - January 2000 has week number 52 in the year 1999, and 31 December - 2002 has week number 1 in the year 2003. - - \sa isValid() -*/ - -int QDate::weekNumber(int *yearNumber) const -{ - if (!isValid()) - return 0; - - int year = QDate::year(); - int yday = dayOfYear(); - int wday = dayOfWeek(); - - int week = (yday - wday + 10) / 7; - - if (week == 0) { - // last week of previous year - --year; - week = (yday + 365 + (QDate::isLeapYear(year) ? 1 : 0) - wday + 10) / 7; - Q_ASSERT(week == 52 || week == 53); - } else if (week == 53) { - // maybe first week of next year - int w = (yday - 365 - (QDate::isLeapYear(year) ? 1 : 0) - wday + 10) / 7; - if (w > 0) { - ++year; - week = w; - } - Q_ASSERT(week == 53 || week == 1); - } - - if (yearNumber != 0) - *yearNumber = year; - return week; -} - -static bool inDateTimeRange(qint64 jd, bool start) -{ - using Bounds = std::numeric_limits<qint64>; - if (jd < Bounds::min() + JULIAN_DAY_FOR_EPOCH) - return false; - jd -= JULIAN_DAY_FOR_EPOCH; - const qint64 maxDay = Bounds::max() / MSECS_PER_DAY; - const qint64 minDay = Bounds::min() / MSECS_PER_DAY - 1; - // (Divisions rounded towards zero, as MSECS_PER_DAY has factors other than two.) - // Range includes start of last day and end of first: - if (start) - return jd > minDay && jd <= maxDay; - return jd >= minDay && jd < maxDay; -} - -static QDateTime toEarliest(const QDate &day, const QDateTime &form) -{ - const Qt::TimeSpec spec = form.timeSpec(); - const int offset = (spec == Qt::OffsetFromUTC) ? form.offsetFromUtc() : 0; -#if QT_CONFIG(timezone) - QTimeZone zone; - if (spec == Qt::TimeZone) - zone = form.timeZone(); -#endif - auto moment = [=](QTime time) { - switch (spec) { - case Qt::OffsetFromUTC: return QDateTime(day, time, spec, offset); -#if QT_CONFIG(timezone) - case Qt::TimeZone: return QDateTime(day, time, zone); -#endif - default: return QDateTime(day, time, spec); - } - }; - // Longest routine time-zone transition is 2 hours: - QDateTime when = moment(QTime(2, 0)); - if (!when.isValid()) { - // Noon should be safe ... - when = moment(QTime(12, 0)); - if (!when.isValid()) { - // ... unless it's a 24-hour jump (moving the date-line) - when = moment(QTime(23, 59, 59, 999)); - if (!when.isValid()) - return QDateTime(); - } - } - int high = when.time().msecsSinceStartOfDay() / 60000; - int low = 0; - // Binary chop to the right minute - while (high > low + 1) { - int mid = (high + low) / 2; - QDateTime probe = moment(QTime(mid / 60, mid % 60)); - if (probe.isValid() && probe.date() == day) { - high = mid; - when = probe; - } else { - low = mid; - } - } - return when; -} - -/*! - \since 5.14 - \fn QDateTime QDate::startOfDay(Qt::TimeSpec spec, int offsetSeconds) const - \fn QDateTime QDate::startOfDay(const QTimeZone &zone) const - - Returns the start-moment of the day. Usually, this shall be midnight at the - start of the day: however, if a time-zone transition causes the given date - to skip over that midnight (e.g. a DST spring-forward skipping from the end - of the previous day to 01:00 of the new day), the actual earliest time in - the day is returned. This can only arise when the start-moment is specified - in terms of a time-zone (by passing its QTimeZone as \a zone) or in terms of - local time (by passing Qt::LocalTime as \a spec; this is its default). - - The \a offsetSeconds is ignored unless \a spec is Qt::OffsetFromUTC, when it - gives the implied zone's offset from UTC. As UTC and such zones have no - transitions, the start of the day is QTime(0, 0) in these cases. - - In the rare case of a date that was entirely skipped (this happens when a - zone east of the international date-line switches to being west of it), the - return shall be invalid. Passing Qt::TimeZone as \a spec (instead of - passing a QTimeZone) or passing an invalid time-zone as \a zone will also - produce an invalid result, as shall dates that start outside the range - representable by QDateTime. - - \sa endOfDay() -*/ -QDateTime QDate::startOfDay(Qt::TimeSpec spec, int offsetSeconds) const -{ - if (!inDateTimeRange(jd, true)) - return QDateTime(); - - switch (spec) { - case Qt::TimeZone: // should pass a QTimeZone instead of Qt::TimeZone - qWarning() << "Called QDate::startOfDay(Qt::TimeZone) on" << *this; - return QDateTime(); - case Qt::OffsetFromUTC: - case Qt::UTC: - return QDateTime(*this, QTime(0, 0), spec, offsetSeconds); - - case Qt::LocalTime: - if (offsetSeconds) - qWarning("Ignoring offset (%d seconds) passed with Qt::LocalTime", offsetSeconds); - break; - } - QDateTime when(*this, QTime(0, 0), spec); - if (!when.isValid()) - when = toEarliest(*this, when); - - return when.isValid() ? when : QDateTime(); -} - -#if QT_CONFIG(timezone) -/*! - \overload - \since 5.14 -*/ -QDateTime QDate::startOfDay(const QTimeZone &zone) const -{ - if (!inDateTimeRange(jd, true) || !zone.isValid()) - return QDateTime(); - - QDateTime when(*this, QTime(0, 0), zone); - if (when.isValid()) - return when; - - // The start of the day must have fallen in a spring-forward's gap; find the spring-forward: - if (zone.hasTransitions()) { - QTimeZone::OffsetData tran = zone.previousTransition(QDateTime(*this, QTime(23, 59, 59, 999), zone)); - const QDateTime &at = tran.atUtc.toTimeZone(zone); - if (at.isValid() && at.date() == *this) - return at; - } - - when = toEarliest(*this, when); - return when.isValid() ? when : QDateTime(); -} -#endif // timezone - -static QDateTime toLatest(const QDate &day, const QDateTime &form) -{ - const Qt::TimeSpec spec = form.timeSpec(); - const int offset = (spec == Qt::OffsetFromUTC) ? form.offsetFromUtc() : 0; -#if QT_CONFIG(timezone) - QTimeZone zone; - if (spec == Qt::TimeZone) - zone = form.timeZone(); -#endif - auto moment = [=](QTime time) { - switch (spec) { - case Qt::OffsetFromUTC: return QDateTime(day, time, spec, offset); -#if QT_CONFIG(timezone) - case Qt::TimeZone: return QDateTime(day, time, zone); -#endif - default: return QDateTime(day, time, spec); - } - }; - // Longest routine time-zone transition is 2 hours: - QDateTime when = moment(QTime(21, 59, 59, 999)); - if (!when.isValid()) { - // Noon should be safe ... - when = moment(QTime(12, 0)); - if (!when.isValid()) { - // ... unless it's a 24-hour jump (moving the date-line) - when = moment(QTime(0, 0)); - if (!when.isValid()) - return QDateTime(); - } - } - int high = 24 * 60; - int low = when.time().msecsSinceStartOfDay() / 60000; - // Binary chop to the right minute - while (high > low + 1) { - int mid = (high + low) / 2; - QDateTime probe = moment(QTime(mid / 60, mid % 60, 59, 999)); - if (probe.isValid() && probe.date() == day) { - low = mid; - when = probe; - } else { - high = mid; - } - } - return when; -} - -/*! - \since 5.14 - \fn QDateTime QDate::endOfDay(Qt::TimeSpec spec, int offsetSeconds) const - \fn QDateTime QDate::endOfDay(const QTimeZone &zone) const - - Returns the end-moment of the day. Usually, this is one millisecond before - the midnight at the end of the day: however, if a time-zone transition - causes the given date to skip over that midnight (e.g. a DST spring-forward - skipping from just before 23:00 to the start of the next day), the actual - latest time in the day is returned. This can only arise when the - start-moment is specified in terms of a time-zone (by passing its QTimeZone - as \a zone) or in terms of local time (by passing Qt::LocalTime as \a spec; - this is its default). - - The \a offsetSeconds is ignored unless \a spec is Qt::OffsetFromUTC, when it - gives the implied zone's offset from UTC. As UTC and such zones have no - transitions, the end of the day is QTime(23, 59, 59, 999) in these cases. - - In the rare case of a date that was entirely skipped (this happens when a - zone east of the international date-line switches to being west of it), the - return shall be invalid. Passing Qt::TimeZone as \a spec (instead of - passing a QTimeZone) will also produce an invalid result, as shall dates - that end outside the range representable by QDateTime. - - \sa startOfDay() -*/ -QDateTime QDate::endOfDay(Qt::TimeSpec spec, int offsetSeconds) const -{ - if (!inDateTimeRange(jd, false)) - return QDateTime(); - - switch (spec) { - case Qt::TimeZone: // should pass a QTimeZone instead of Qt::TimeZone - qWarning() << "Called QDate::endOfDay(Qt::TimeZone) on" << *this; - return QDateTime(); - case Qt::UTC: - case Qt::OffsetFromUTC: - return QDateTime(*this, QTime(23, 59, 59, 999), spec, offsetSeconds); - - case Qt::LocalTime: - if (offsetSeconds) - qWarning("Ignoring offset (%d seconds) passed with Qt::LocalTime", offsetSeconds); - break; - } - QDateTime when(*this, QTime(23, 59, 59, 999), spec); - if (!when.isValid()) - when = toLatest(*this, when); - return when.isValid() ? when : QDateTime(); -} - -#if QT_CONFIG(timezone) -/*! - \overload - \since 5.14 -*/ -QDateTime QDate::endOfDay(const QTimeZone &zone) const -{ - if (!inDateTimeRange(jd, false) || !zone.isValid()) - return QDateTime(); - - QDateTime when(*this, QTime(23, 59, 59, 999), zone); - if (when.isValid()) - return when; - - // The end of the day must have fallen in a spring-forward's gap; find the spring-forward: - if (zone.hasTransitions()) { - QTimeZone::OffsetData tran = zone.nextTransition(QDateTime(*this, QTime(0, 0), zone)); - const QDateTime &at = tran.atUtc.toTimeZone(zone); - if (at.isValid() && at.date() == *this) - return at; - } - - when = toLatest(*this, when); - return when.isValid() ? when : QDateTime(); -} -#endif // timezone - -#if QT_DEPRECATED_SINCE(5, 11) && QT_CONFIG(textdate) - -/*! - \since 4.5 - \deprecated - - Returns the short name of the \a month for the representation specified - by \a type. - - The months are enumerated using the following convention: - - \list - \li 1 = "Jan" - \li 2 = "Feb" - \li 3 = "Mar" - \li 4 = "Apr" - \li 5 = "May" - \li 6 = "Jun" - \li 7 = "Jul" - \li 8 = "Aug" - \li 9 = "Sep" - \li 10 = "Oct" - \li 11 = "Nov" - \li 12 = "Dec" - \endlist - - The month names will be localized according to the system's - locale settings, i.e. using QLocale::system(). - - Returns an empty string if the date is invalid. - - \sa toString(), longMonthName(), shortDayName(), longDayName() -*/ - -QString QDate::shortMonthName(int month, QDate::MonthNameType type) -{ - switch (type) { - case QDate::DateFormat: - return QLocale::system().monthName(month, QLocale::ShortFormat); - case QDate::StandaloneFormat: - return QLocale::system().standaloneMonthName(month, QLocale::ShortFormat); - } - return QString(); -} - -/*! - \since 4.5 - \deprecated - - Returns the long name of the \a month for the representation specified - by \a type. - - The months are enumerated using the following convention: - - \list - \li 1 = "January" - \li 2 = "February" - \li 3 = "March" - \li 4 = "April" - \li 5 = "May" - \li 6 = "June" - \li 7 = "July" - \li 8 = "August" - \li 9 = "September" - \li 10 = "October" - \li 11 = "November" - \li 12 = "December" - \endlist - - The month names will be localized according to the system's - locale settings, i.e. using QLocale::system(). - - Returns an empty string if the date is invalid. - - \sa toString(), shortMonthName(), shortDayName(), longDayName() -*/ - -QString QDate::longMonthName(int month, MonthNameType type) -{ - switch (type) { - case QDate::DateFormat: - return QLocale::system().monthName(month, QLocale::LongFormat); - case QDate::StandaloneFormat: - return QLocale::system().standaloneMonthName(month, QLocale::LongFormat); - } - return QString(); -} - -/*! - \since 4.5 - \deprecated - - Returns the short name of the \a weekday for the representation specified - by \a type. - - The days are enumerated using the following convention: - - \list - \li 1 = "Mon" - \li 2 = "Tue" - \li 3 = "Wed" - \li 4 = "Thu" - \li 5 = "Fri" - \li 6 = "Sat" - \li 7 = "Sun" - \endlist - - The day names will be localized according to the system's - locale settings, i.e. using QLocale::system(). - - Returns an empty string if the date is invalid. - - \sa toString(), shortMonthName(), longMonthName(), longDayName() -*/ - -QString QDate::shortDayName(int weekday, MonthNameType type) -{ - switch (type) { - case QDate::DateFormat: - return QLocale::system().dayName(weekday, QLocale::ShortFormat); - case QDate::StandaloneFormat: - return QLocale::system().standaloneDayName(weekday, QLocale::ShortFormat); - } - return QString(); -} - -/*! - \since 4.5 - \deprecated - - Returns the long name of the \a weekday for the representation specified - by \a type. - - The days are enumerated using the following convention: - - \list - \li 1 = "Monday" - \li 2 = "Tuesday" - \li 3 = "Wednesday" - \li 4 = "Thursday" - \li 5 = "Friday" - \li 6 = "Saturday" - \li 7 = "Sunday" - \endlist - - The day names will be localized according to the system's - locale settings, i.e. using QLocale::system(). - - Returns an empty string if the date is invalid. - - \sa toString(), shortDayName(), shortMonthName(), longMonthName() -*/ - -QString QDate::longDayName(int weekday, MonthNameType type) -{ - switch (type) { - case QDate::DateFormat: - return QLocale::system().dayName(weekday, QLocale::LongFormat); - case QDate::StandaloneFormat: - return QLocale::system().standaloneDayName(weekday, QLocale::LongFormat); - } - return QString(); -} -#endif // textdate && deprecated - -#if QT_CONFIG(datestring) - -#if QT_CONFIG(textdate) -static QString toStringTextDate(QDate date) -{ - const ParsedDate pd = getDateFromJulianDay(date.toJulianDay()); - static const QLatin1Char sp(' '); - return QLocale::system().dayName(date.dayOfWeek(), QLocale::ShortFormat) + sp - + QLocale::system().monthName(pd.month, QLocale::ShortFormat) + sp - + QString::number(pd.day) + sp - + QString::number(pd.year); -} -#endif // textdate - -static QString toStringIsoDate(qint64 jd) -{ - const ParsedDate pd = getDateFromJulianDay(jd); - if (pd.year >= 0 && pd.year <= 9999) - return QString::asprintf("%04d-%02d-%02d", pd.year, pd.month, pd.day); - else - return QString(); -} - -/*! - \fn QString QDate::toString(Qt::DateFormat format) const - - \overload - - Returns the date as a string. The \a format parameter determines - the format of the string. - - If the \a format is Qt::TextDate, the string is formatted in - the default way. QDate::shortDayName() and QDate::shortMonthName() - are used to generate the string, so the day and month names will - be localized names using the system locale, i.e. QLocale::system(). An - example of this formatting is "Sat May 20 1995". - - If the \a format is Qt::ISODate, the string format corresponds - to the ISO 8601 extended specification for representations of - dates and times, taking the form yyyy-MM-dd, where yyyy is the - year, MM is the month of the year (between 01 and 12), and dd is - the day of the month between 01 and 31. - - If the \a format is Qt::SystemLocaleShortDate or - Qt::SystemLocaleLongDate, the string format depends on the locale - settings of the system. Identical to calling - QLocale::system().toString(date, QLocale::ShortFormat) or - QLocale::system().toString(date, QLocale::LongFormat). - - If the \a format is Qt::DefaultLocaleShortDate or - Qt::DefaultLocaleLongDate, the string format depends on the - default application locale. This is the locale set with - QLocale::setDefault(), or the system locale if no default locale - has been set. Identical to calling - \l {QLocale::toString()}{QLocale().toString(date, QLocale::ShortFormat) } or - \l {QLocale::toString()}{QLocale().toString(date, QLocale::LongFormat)}. - - If the \a format is Qt::RFC2822Date, the string is formatted in - an \l{RFC 2822} compatible way. An example of this formatting is - "20 May 1995". - - If the date is invalid, an empty string will be returned. - - \warning The Qt::ISODate format is only valid for years in the - range 0 to 9999. This restriction may apply to locale-aware - formats as well, depending on the locale settings. - - \sa fromString(), shortDayName(), shortMonthName(), QLocale::toString() -*/ -QString QDate::toString(Qt::DateFormat format) const -{ - if (!isValid()) - return QString(); - - switch (format) { - case Qt::SystemLocaleDate: - case Qt::SystemLocaleShortDate: - return QLocale::system().toString(*this, QLocale::ShortFormat); - case Qt::SystemLocaleLongDate: - return QLocale::system().toString(*this, QLocale::LongFormat); - case Qt::LocaleDate: - case Qt::DefaultLocaleShortDate: - return QLocale().toString(*this, QLocale::ShortFormat); - case Qt::DefaultLocaleLongDate: - return QLocale().toString(*this, QLocale::LongFormat); - case Qt::RFC2822Date: - return QLocale::c().toString(*this, QStringViewLiteral("dd MMM yyyy")); - default: -#if QT_CONFIG(textdate) - case Qt::TextDate: - return toStringTextDate(*this); -#endif - case Qt::ISODate: - case Qt::ISODateWithMs: - return toStringIsoDate(jd); - } -} - -/*! - \fn QString QDate::toString(const QString &format) const - \fn QString QDate::toString(QStringView format) const - - Returns the date as a string. The \a format parameter determines - the format of the result string. - - These expressions may be used: - - \table - \header \li Expression \li Output - \row \li d \li the day as number without a leading zero (1 to 31) - \row \li dd \li the day as number with a leading zero (01 to 31) - \row \li ddd - \li the abbreviated localized day name (e.g. 'Mon' to 'Sun'). - Uses the system locale to localize the name, i.e. QLocale::system(). - \row \li dddd - \li the long localized day name (e.g. 'Monday' to 'Sunday'). - Uses the system locale to localize the name, i.e. QLocale::system(). - \row \li M \li the month as number without a leading zero (1 to 12) - \row \li MM \li the month as number with a leading zero (01 to 12) - \row \li MMM - \li the abbreviated localized month name (e.g. 'Jan' to 'Dec'). - Uses the system locale to localize the name, i.e. QLocale::system(). - \row \li MMMM - \li the long localized month name (e.g. 'January' to 'December'). - Uses the system locale to localize the name, i.e. QLocale::system(). - \row \li yy \li the year as two digit number (00 to 99) - \row \li yyyy \li the year as four digit number. If the year is negative, - a minus sign is prepended in addition. - \endtable - - Any sequence of characters enclosed in single quotes will be included - verbatim in the output string (stripped of the quotes), even if it contains - formatting characters. Two consecutive single quotes ("''") are replaced by - a single quote in the output. All other characters in the format string are - included verbatim in the output string. - - Formats without separators (e.g. "ddMM") are supported but must be used with - care, as the resulting strings aren't always reliably readable (e.g. if "dM" - produces "212" it could mean either the 2nd of December or the 21st of - February). - - Example format strings (assuming that the QDate is the 20 July - 1969): - - \table - \header \li Format \li Result - \row \li dd.MM.yyyy \li 20.07.1969 - \row \li ddd MMMM d yy \li Sun July 20 69 - \row \li 'The day is' dddd \li The day is Sunday - \endtable - - If the datetime is invalid, an empty string will be returned. - - \sa fromString(), QDateTime::toString(), QTime::toString(), QLocale::toString() - -*/ -QString QDate::toString(QStringView format) const -{ - return QLocale::system().toString(*this, format); // QLocale::c() ### Qt6 -} - -#if QT_STRINGVIEW_LEVEL < 2 -QString QDate::toString(const QString &format) const -{ - return toString(qToStringViewIgnoringNull(format)); -} -#endif - -#endif // datestring - -/*! - \fn bool QDate::setYMD(int y, int m, int d) - - \deprecated in 5.0, use setDate() instead. - - Sets the date's year \a y, month \a m, and day \a d. - - If \a y is in the range 0 to 99, it is interpreted as 1900 to - 1999. - Returns \c false if the date is invalid. - - Use setDate() instead. -*/ - -/*! - \since 4.2 - - Sets the date's \a year, \a month, and \a day. Returns \c true if - the date is valid; otherwise returns \c false. - - If the specified date is invalid, the QDate object is set to be - invalid. - - \sa isValid() -*/ -bool QDate::setDate(int year, int month, int day) -{ - if (isValid(year, month, day)) - jd = julianDayFromDate(year, month, day); - else - jd = nullJd(); - - return isValid(); -} - -/*! - \since 4.5 - - Extracts the date's year, month, and day, and assigns them to - *\a year, *\a month, and *\a day. The pointers may be null. - - Returns 0 if the date is invalid. - - \note In Qt versions prior to 5.7, this function is marked as non-\c{const}. - - \sa year(), month(), day(), isValid() -*/ -void QDate::getDate(int *year, int *month, int *day) const -{ - ParsedDate pd = { 0, 0, 0 }; - if (isValid()) - pd = getDateFromJulianDay(jd); - - if (year) - *year = pd.year; - if (month) - *month = pd.month; - if (day) - *day = pd.day; -} - -#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0) -/*! - \overload - \internal -*/ -void QDate::getDate(int *year, int *month, int *day) -{ - qAsConst(*this).getDate(year, month, day); -} -#endif // < Qt 6 - -/*! - Returns a QDate object containing a date \a ndays later than the - date of this object (or earlier if \a ndays is negative). - - Returns a null date if the current date is invalid or the new date is - out of range. - - \sa addMonths(), addYears(), daysTo() -*/ - -QDate QDate::addDays(qint64 ndays) const -{ - if (isNull()) - return QDate(); - - // Due to limits on minJd() and maxJd() we know that any overflow - // will be invalid and caught by fromJulianDay(). - return fromJulianDay(jd + ndays); -} - -/*! - Returns a QDate object containing a date \a nmonths later than the - date of this object (or earlier if \a nmonths is negative). - - \note If the ending day/month combination does not exist in the - resulting month/year, this function will return a date that is the - latest valid date. - - \sa addDays(), addYears() -*/ - -QDate QDate::addMonths(int nmonths) const -{ - if (!isValid()) - return QDate(); - if (!nmonths) - return *this; - - int old_y, y, m, d; - { - const ParsedDate pd = getDateFromJulianDay(jd); - y = pd.year; - m = pd.month; - d = pd.day; - } - old_y = y; - - bool increasing = nmonths > 0; - - while (nmonths != 0) { - if (nmonths < 0 && nmonths + 12 <= 0) { - y--; - nmonths+=12; - } else if (nmonths < 0) { - m+= nmonths; - nmonths = 0; - if (m <= 0) { - --y; - m += 12; - } - } else if (nmonths - 12 >= 0) { - y++; - nmonths -= 12; - } else if (m == 12) { - y++; - m = 0; - } else { - m += nmonths; - nmonths = 0; - if (m > 12) { - ++y; - m -= 12; - } - } - } - - // was there a sign change? - if ((old_y > 0 && y <= 0) || - (old_y < 0 && y >= 0)) - // yes, adjust the date by +1 or -1 years - y += increasing ? +1 : -1; - - return fixedDate(y, m, d); -} - -/*! - Returns a QDate object containing a date \a nyears later than the - date of this object (or earlier if \a nyears is negative). - - \note If the ending day/month combination does not exist in the - resulting year (i.e., if the date was Feb 29 and the final year is - not a leap year), this function will return a date that is the - latest valid date (that is, Feb 28). - - \sa addDays(), addMonths() -*/ - -QDate QDate::addYears(int nyears) const -{ - if (!isValid()) - return QDate(); - - ParsedDate pd = getDateFromJulianDay(jd); - - int old_y = pd.year; - pd.year += nyears; - - // was there a sign change? - if ((old_y > 0 && pd.year <= 0) || - (old_y < 0 && pd.year >= 0)) - // yes, adjust the date by +1 or -1 years - pd.year += nyears > 0 ? +1 : -1; - - return fixedDate(pd.year, pd.month, pd.day); -} - -/*! - Returns the number of days from this date to \a d (which is - negative if \a d is earlier than this date). - - Returns 0 if either date is invalid. - - Example: - \snippet code/src_corelib_tools_qdatetime.cpp 0 - - \sa addDays() -*/ - -qint64 QDate::daysTo(const QDate &d) const -{ - if (isNull() || d.isNull()) - return 0; - - // Due to limits on minJd() and maxJd() we know this will never overflow - return d.jd - jd; -} - - -/*! - \fn bool QDate::operator==(const QDate &d) const - - Returns \c true if this date is equal to \a d; otherwise returns - false. - -*/ - -/*! - \fn bool QDate::operator!=(const QDate &d) const - - Returns \c true if this date is different from \a d; otherwise - returns \c false. -*/ - -/*! - \fn bool QDate::operator<(const QDate &d) const - - Returns \c true if this date is earlier than \a d; otherwise returns - false. -*/ - -/*! - \fn bool QDate::operator<=(const QDate &d) const - - Returns \c true if this date is earlier than or equal to \a d; - otherwise returns \c false. -*/ - -/*! - \fn bool QDate::operator>(const QDate &d) const - - Returns \c true if this date is later than \a d; otherwise returns - false. -*/ - -/*! - \fn bool QDate::operator>=(const QDate &d) const - - Returns \c true if this date is later than or equal to \a d; - otherwise returns \c false. -*/ - -/*! - \fn QDate::currentDate() - Returns the current date, as reported by the system clock. - - \sa QTime::currentTime(), QDateTime::currentDateTime() -*/ - -#if QT_CONFIG(datestring) -/*! - Returns the QDate represented by the \a string, using the - \a format given, or an invalid date if the string cannot be - parsed. - - Note for Qt::TextDate: It is recommended that you use the - English short month names (e.g. "Jan"). Although localized month - names can also be used, they depend on the user's locale settings. - - \sa toString(), QLocale::toDate() -*/ - -QDate QDate::fromString(const QString &string, Qt::DateFormat format) -{ - if (string.isEmpty()) - return QDate(); - - switch (format) { - case Qt::SystemLocaleDate: - case Qt::SystemLocaleShortDate: - return QLocale::system().toDate(string, QLocale::ShortFormat); - case Qt::SystemLocaleLongDate: - return QLocale::system().toDate(string, QLocale::LongFormat); - case Qt::LocaleDate: - case Qt::DefaultLocaleShortDate: - return QLocale().toDate(string, QLocale::ShortFormat); - case Qt::DefaultLocaleLongDate: - return QLocale().toDate(string, QLocale::LongFormat); - case Qt::RFC2822Date: - return rfcDateImpl(string).date; - default: -#if QT_CONFIG(textdate) - case Qt::TextDate: { - QVector<QStringRef> parts = string.splitRef(QLatin1Char(' '), QString::SkipEmptyParts); - - if (parts.count() != 4) - return QDate(); - - QStringRef monthName = parts.at(1); - const int month = fromShortMonthName(monthName); - if (month == -1) { - // Month name matches neither English nor other localised name. - return QDate(); - } - - bool ok = false; - int year = parts.at(3).toInt(&ok); - if (!ok) - return QDate(); - - return QDate(year, month, parts.at(2).toInt()); - } -#endif // textdate - case Qt::ISODate: { - // Semi-strict parsing, must be long enough and have non-numeric separators - if (string.size() < 10 || string.at(4).isDigit() || string.at(7).isDigit() - || (string.size() > 10 && string.at(10).isDigit())) { - return QDate(); - } - const int year = string.midRef(0, 4).toInt(); - if (year <= 0 || year > 9999) - return QDate(); - return QDate(year, string.midRef(5, 2).toInt(), string.midRef(8, 2).toInt()); - } - } - return QDate(); -} - -/*! - Returns the QDate represented by the \a string, using the \a - format given, or an invalid date if the string cannot be parsed. - - These expressions may be used for the format: - - \table - \header \li Expression \li Output - \row \li d \li The day as a number without a leading zero (1 to 31) - \row \li dd \li The day as a number with a leading zero (01 to 31) - \row \li ddd - \li The abbreviated localized day name (e.g. 'Mon' to 'Sun'). - Uses the system locale to localize the name, i.e. QLocale::system(). - \row \li dddd - \li The long localized day name (e.g. 'Monday' to 'Sunday'). - Uses the system locale to localize the name, i.e. QLocale::system(). - \row \li M \li The month as a number without a leading zero (1 to 12) - \row \li MM \li The month as a number with a leading zero (01 to 12) - \row \li MMM - \li The abbreviated localized month name (e.g. 'Jan' to 'Dec'). - Uses the system locale to localize the name, i.e. QLocale::system(). - \row \li MMMM - \li The long localized month name (e.g. 'January' to 'December'). - Uses the system locale to localize the name, i.e. QLocale::system(). - \row \li yy \li The year as two digit number (00 to 99) - \row \li yyyy \li The year as four digit number. If the year is negative, - a minus sign is prepended in addition. - \endtable - - All other input characters will be treated as text. Any sequence - of characters that are enclosed in single quotes will also be - treated as text and will not be used as an expression. For example: - - \snippet code/src_corelib_tools_qdatetime.cpp 1 - - If the format is not satisfied, an invalid QDate is returned. The - expressions that don't expect leading zeroes (d, M) will be - greedy. This means that they will use two digits even if this - will put them outside the accepted range of values and leaves too - few digits for other sections. For example, the following format - string could have meant January 30 but the M will grab two - digits, resulting in an invalid date: - - \snippet code/src_corelib_tools_qdatetime.cpp 2 - - For any field that is not represented in the format the following - defaults are used: - - \table - \header \li Field \li Default value - \row \li Year \li 1900 - \row \li Month \li 1 - \row \li Day \li 1 - \endtable - - The following examples demonstrate the default values: - - \snippet code/src_corelib_tools_qdatetime.cpp 3 - - \sa toString(), QDateTime::fromString(), QTime::fromString(), - QLocale::toDate() -*/ - -QDate QDate::fromString(const QString &string, const QString &format) -{ - QDate date; -#if QT_CONFIG(datetimeparser) - QDateTimeParser dt(QVariant::Date, QDateTimeParser::FromString); - // dt.setDefaultLocale(QLocale::c()); ### Qt 6 - if (dt.parseFormat(format)) - dt.fromString(string, &date, 0); -#else - Q_UNUSED(string); - Q_UNUSED(format); -#endif - return date; -} -#endif // datestring - -/*! - \overload - - Returns \c true if the specified date (\a year, \a month, and \a - day) is valid; otherwise returns \c false. - - Example: - \snippet code/src_corelib_tools_qdatetime.cpp 4 - - \sa isNull(), setDate() -*/ - -bool QDate::isValid(int year, int month, int day) -{ - // There is no year 0 in the Gregorian calendar. - return year && day > 0 && month > 0 && month <= 12 && - day <= (month == 2 ? isLeapYear(year) ? 29 : 28 : daysInUsualMonth(month)); -} - -/*! - \fn bool QDate::isLeapYear(int year) - - Returns \c true if the specified \a year is a leap year; otherwise - returns \c false. -*/ - -bool QDate::isLeapYear(int y) -{ - // No year 0 in Gregorian calendar, so -1, -5, -9 etc are leap years - if ( y < 1) - ++y; - - return (y % 4 == 0 && y % 100 != 0) || y % 400 == 0; -} - -/*! \fn static QDate QDate::fromJulianDay(qint64 jd) - - Converts the Julian day \a jd to a QDate. - - \sa toJulianDay() -*/ - -/*! \fn int QDate::toJulianDay() const - - Converts the date to a Julian day. - - \sa fromJulianDay() -*/ - -/***************************************************************************** - QTime member functions - *****************************************************************************/ - -/*! - \class QTime - \inmodule QtCore - \reentrant - - \brief The QTime class provides clock time functions. - - - A QTime object contains a clock time, which it can express as the numbers of - hours, minutes, seconds, and milliseconds since midnight. It provides - functions for comparing times and for manipulating a time by adding a number - of milliseconds. - - QTime uses the 24-hour clock format; it has no concept of AM/PM. - Unlike QDateTime, QTime knows nothing about time zones or - daylight-saving time (DST). - - A QTime object is typically created either by giving the number - of hours, minutes, seconds, and milliseconds explicitly, or by - using the static function currentTime(), which creates a QTime - object that contains the system's local time. Note that the - accuracy depends on the accuracy of the underlying operating - system; not all systems provide 1-millisecond accuracy. - - The hour(), minute(), second(), and msec() functions provide - access to the number of hours, minutes, seconds, and milliseconds - of the time. The same information is provided in textual format by - the toString() function. - - The addSecs() and addMSecs() functions provide the time a given - number of seconds or milliseconds later than a given time. - Correspondingly, the number of seconds or milliseconds - between two times can be found using secsTo() or msecsTo(). - - QTime provides a full set of operators to compare two QTime - objects; an earlier time is considered smaller than a later one; - if A.msecsTo(B) is positive, then A < B. - - \sa QDate, QDateTime -*/ - -/*! - \fn QTime::QTime() - - Constructs a null time object. For a null time, isNull() returns \c true and - isValid() returns \c false. If you need a zero time, use QTime(0, 0). For - the start of a day, see QDate::startOfDay(). - - \sa isNull(), isValid() -*/ - -/*! - Constructs a time with hour \a h, minute \a m, seconds \a s and - milliseconds \a ms. - - \a h must be in the range 0 to 23, \a m and \a s must be in the - range 0 to 59, and \a ms must be in the range 0 to 999. - - \sa isValid() -*/ - -QTime::QTime(int h, int m, int s, int ms) -{ - setHMS(h, m, s, ms); -} - - -/*! - \fn bool QTime::isNull() const - - Returns \c true if the time is null (i.e., the QTime object was - constructed using the default constructor); otherwise returns - false. A null time is also an invalid time. - - \sa isValid() -*/ - -/*! - Returns \c true if the time is valid; otherwise returns \c false. For example, - the time 23:30:55.746 is valid, but 24:12:30 is invalid. - - \sa isNull() -*/ - -bool QTime::isValid() const -{ - return mds > NullTime && mds < MSECS_PER_DAY; -} - - -/*! - Returns the hour part (0 to 23) of the time. - - Returns -1 if the time is invalid. - - \sa minute(), second(), msec() -*/ - -int QTime::hour() const -{ - if (!isValid()) - return -1; - - return ds() / MSECS_PER_HOUR; -} - -/*! - Returns the minute part (0 to 59) of the time. - - Returns -1 if the time is invalid. - - \sa hour(), second(), msec() -*/ - -int QTime::minute() const -{ - if (!isValid()) - return -1; - - return (ds() % MSECS_PER_HOUR) / MSECS_PER_MIN; -} - -/*! - Returns the second part (0 to 59) of the time. - - Returns -1 if the time is invalid. - - \sa hour(), minute(), msec() -*/ - -int QTime::second() const -{ - if (!isValid()) - return -1; - - return (ds() / 1000)%SECS_PER_MIN; -} - -/*! - Returns the millisecond part (0 to 999) of the time. - - Returns -1 if the time is invalid. - - \sa hour(), minute(), second() -*/ - -int QTime::msec() const -{ - if (!isValid()) - return -1; - - return ds() % 1000; -} - -#if QT_CONFIG(datestring) -/*! - \overload - - Returns the time as a string. The \a format parameter determines - the format of the string. - - If \a format is Qt::TextDate, the string format is HH:mm:ss; - e.g. 1 second before midnight would be "23:59:59". - - If \a format is Qt::ISODate, the string format corresponds to the - ISO 8601 extended specification for representations of dates, - represented by HH:mm:ss. To include milliseconds in the ISO 8601 - date, use the \a format Qt::ISODateWithMs, which corresponds to - HH:mm:ss.zzz. - - If the \a format is Qt::SystemLocaleShortDate or - Qt::SystemLocaleLongDate, the string format depends on the locale - settings of the system. Identical to calling - QLocale::system().toString(time, QLocale::ShortFormat) or - QLocale::system().toString(time, QLocale::LongFormat). - - If the \a format is Qt::DefaultLocaleShortDate or - Qt::DefaultLocaleLongDate, the string format depends on the - default application locale. This is the locale set with - QLocale::setDefault(), or the system locale if no default locale - has been set. Identical to calling - - \l {QLocale::toString()}{QLocale().toString(time, QLocale::ShortFormat)} or - \l {QLocale::toString()}{QLocale().toString(time, QLocale::LongFormat)}. - - If the \a format is Qt::RFC2822Date, the string is formatted in - an \l{RFC 2822} compatible way. An example of this formatting is - "23:59:20". - - If the time is invalid, an empty string will be returned. - - \sa fromString(), QDate::toString(), QDateTime::toString(), QLocale::toString() -*/ - -QString QTime::toString(Qt::DateFormat format) const -{ - if (!isValid()) - return QString(); - - switch (format) { - case Qt::SystemLocaleDate: - case Qt::SystemLocaleShortDate: - return QLocale::system().toString(*this, QLocale::ShortFormat); - case Qt::SystemLocaleLongDate: - return QLocale::system().toString(*this, QLocale::LongFormat); - case Qt::LocaleDate: - case Qt::DefaultLocaleShortDate: - return QLocale().toString(*this, QLocale::ShortFormat); - case Qt::DefaultLocaleLongDate: - return QLocale().toString(*this, QLocale::LongFormat); - case Qt::ISODateWithMs: - return QString::asprintf("%02d:%02d:%02d.%03d", hour(), minute(), second(), msec()); - case Qt::RFC2822Date: - case Qt::ISODate: - case Qt::TextDate: - default: - return QString::asprintf("%02d:%02d:%02d", hour(), minute(), second()); - } -} - -/*! - \fn QString QTime::toString(const QString &format) const - \fn QString QTime::toString(QStringView format) const - - Returns the time as a string. The \a format parameter determines - the format of the result string. - - These expressions may be used: - - \table - \header \li Expression \li Output - \row \li h - \li the hour without a leading zero (0 to 23 or 1 to 12 if AM/PM display) - \row \li hh - \li the hour with a leading zero (00 to 23 or 01 to 12 if AM/PM display) - \row \li H - \li the hour without a leading zero (0 to 23, even with AM/PM display) - \row \li HH - \li the hour with a leading zero (00 to 23, even with AM/PM display) - \row \li m \li the minute without a leading zero (0 to 59) - \row \li mm \li the minute with a leading zero (00 to 59) - \row \li s \li the whole second, without any leading zero (0 to 59) - \row \li ss \li the whole second, with a leading zero where applicable (00 to 59) - \row \li z \li the fractional part of the second, to go after a decimal - point, without trailing zeroes (0 to 999). Thus "\c{s.z}" - reports the seconds to full available (millisecond) precision - without trailing zeroes. - \row \li zzz \li the fractional part of the second, to millisecond - precision, including trailing zeroes where applicable (000 to 999). - \row \li AP or A - \li use AM/PM display. \e A/AP will be replaced by either - QLocale::amText() or QLocale::pmText(). - \row \li ap or a - \li use am/pm display. \e a/ap will be replaced by a lower-case version of - QLocale::amText() or QLocale::pmText(). - \row \li t \li the timezone (for example "CEST") - \endtable - - Any sequence of characters enclosed in single quotes will be included - verbatim in the output string (stripped of the quotes), even if it contains - formatting characters. Two consecutive single quotes ("''") are replaced by - a single quote in the output. All other characters in the format string are - included verbatim in the output string. - - Formats without separators (e.g. "ddMM") are supported but must be used with - care, as the resulting strings aren't always reliably readable (e.g. if "dM" - produces "212" it could mean either the 2nd of December or the 21st of - February). - - Example format strings (assuming that the QTime is 14:13:09.042 and the system - locale is \c{en_US}) - - \table - \header \li Format \li Result - \row \li hh:mm:ss.zzz \li 14:13:09.042 - \row \li h:m:s ap \li 2:13:9 pm - \row \li H:m:s a \li 14:13:9 pm - \endtable - - If the time is invalid, an empty string will be returned. - If \a format is empty, the default format "hh:mm:ss" is used. - - \sa fromString(), QDate::toString(), QDateTime::toString(), QLocale::toString() -*/ -QString QTime::toString(QStringView format) const -{ - return QLocale::system().toString(*this, format); // QLocale::c() ### Qt6 -} - -#if QT_STRINGVIEW_VERSION < 2 -QString QTime::toString(const QString &format) const -{ - return toString(qToStringViewIgnoringNull(format)); -} -#endif - -#endif // datestring - -/*! - Sets the time to hour \a h, minute \a m, seconds \a s and - milliseconds \a ms. - - \a h must be in the range 0 to 23, \a m and \a s must be in the - range 0 to 59, and \a ms must be in the range 0 to 999. - Returns \c true if the set time is valid; otherwise returns \c false. - - \sa isValid() -*/ - -bool QTime::setHMS(int h, int m, int s, int ms) -{ - if (!isValid(h,m,s,ms)) { - mds = NullTime; // make this invalid - return false; - } - mds = (h*SECS_PER_HOUR + m*SECS_PER_MIN + s)*1000 + ms; - return true; -} - -/*! - Returns a QTime object containing a time \a s seconds later - than the time of this object (or earlier if \a s is negative). - - Note that the time will wrap if it passes midnight. - - Returns a null time if this time is invalid. - - Example: - - \snippet code/src_corelib_tools_qdatetime.cpp 5 - - \sa addMSecs(), secsTo(), QDateTime::addSecs() -*/ - -QTime QTime::addSecs(int s) const -{ - s %= SECS_PER_DAY; - return addMSecs(s * 1000); -} - -/*! - Returns the number of seconds from this time to \a t. - If \a t is earlier than this time, the number of seconds returned - is negative. - - Because QTime measures time within a day and there are 86400 - seconds in a day, the result is always between -86400 and 86400. - - secsTo() does not take into account any milliseconds. - - Returns 0 if either time is invalid. - - \sa addSecs(), QDateTime::secsTo() -*/ - -int QTime::secsTo(const QTime &t) const -{ - if (!isValid() || !t.isValid()) - return 0; - - // Truncate milliseconds as we do not want to consider them. - int ourSeconds = ds() / 1000; - int theirSeconds = t.ds() / 1000; - return theirSeconds - ourSeconds; -} - -/*! - Returns a QTime object containing a time \a ms milliseconds later - than the time of this object (or earlier if \a ms is negative). - - Note that the time will wrap if it passes midnight. See addSecs() - for an example. - - Returns a null time if this time is invalid. - - \sa addSecs(), msecsTo(), QDateTime::addMSecs() -*/ - -QTime QTime::addMSecs(int ms) const -{ - QTime t; - if (isValid()) { - if (ms < 0) { - // %,/ not well-defined for -ve, so always work with +ve. - int negdays = (MSECS_PER_DAY - ms) / MSECS_PER_DAY; - t.mds = (ds() + ms + negdays * MSECS_PER_DAY) % MSECS_PER_DAY; - } else { - t.mds = (ds() + ms) % MSECS_PER_DAY; - } - } - return t; -} - -/*! - Returns the number of milliseconds from this time to \a t. - If \a t is earlier than this time, the number of milliseconds returned - is negative. - - Because QTime measures time within a day and there are 86400 - seconds in a day, the result is always between -86400000 and - 86400000 ms. - - Returns 0 if either time is invalid. - - \sa secsTo(), addMSecs(), QDateTime::msecsTo() -*/ - -int QTime::msecsTo(const QTime &t) const -{ - if (!isValid() || !t.isValid()) - return 0; - return t.ds() - ds(); -} - - -/*! - \fn bool QTime::operator==(const QTime &t) const - - Returns \c true if this time is equal to \a t; otherwise returns \c false. -*/ - -/*! - \fn bool QTime::operator!=(const QTime &t) const - - Returns \c true if this time is different from \a t; otherwise returns \c false. -*/ - -/*! - \fn bool QTime::operator<(const QTime &t) const - - Returns \c true if this time is earlier than \a t; otherwise returns \c false. -*/ - -/*! - \fn bool QTime::operator<=(const QTime &t) const - - Returns \c true if this time is earlier than or equal to \a t; - otherwise returns \c false. -*/ - -/*! - \fn bool QTime::operator>(const QTime &t) const - - Returns \c true if this time is later than \a t; otherwise returns \c false. -*/ - -/*! - \fn bool QTime::operator>=(const QTime &t) const - - Returns \c true if this time is later than or equal to \a t; - otherwise returns \c false. -*/ - -/*! - \fn QTime QTime::fromMSecsSinceStartOfDay(int msecs) - - Returns a new QTime instance with the time set to the number of \a msecs - since the start of the day, i.e. since 00:00:00. - - If \a msecs falls outside the valid range an invalid QTime will be returned. - - \sa msecsSinceStartOfDay() -*/ - -/*! - \fn int QTime::msecsSinceStartOfDay() const - - Returns the number of msecs since the start of the day, i.e. since 00:00:00. - - \sa fromMSecsSinceStartOfDay() -*/ - -/*! - \fn QTime::currentTime() - - Returns the current time as reported by the system clock. - - Note that the accuracy depends on the accuracy of the underlying - operating system; not all systems provide 1-millisecond accuracy. -*/ - -#if QT_CONFIG(datestring) - -static QTime fromIsoTimeString(const QStringRef &string, Qt::DateFormat format, bool *isMidnight24) -{ - if (isMidnight24) - *isMidnight24 = false; - - const int size = string.size(); - if (size < 5) - return QTime(); - - bool ok = false; - int hour = string.mid(0, 2).toInt(&ok); - if (!ok) - return QTime(); - const int minute = string.mid(3, 2).toInt(&ok); - if (!ok) - return QTime(); - int second = 0; - int msec = 0; - - if (size == 5) { - // HH:mm format - second = 0; - msec = 0; - } else if (string.at(5) == QLatin1Char(',') || string.at(5) == QLatin1Char('.')) { - if (format == Qt::TextDate) - return QTime(); - // ISODate HH:mm.ssssss format - // We only want 5 digits worth of fraction of minute. This follows the existing - // behavior that determines how milliseconds are read; 4 millisecond digits are - // read and then rounded to 3. If we read at most 5 digits for fraction of minute, - // the maximum amount of millisecond digits it will expand to once converted to - // seconds is 4. E.g. 12:34,99999 will expand to 12:34:59.9994. The milliseconds - // will then be rounded up AND clamped to 999. - - const QStringRef minuteFractionStr = string.mid(6, 5); - const long minuteFractionInt = minuteFractionStr.toLong(&ok); - if (!ok) - return QTime(); - const float minuteFraction = double(minuteFractionInt) / (std::pow(double(10), minuteFractionStr.count())); - - const float secondWithMs = minuteFraction * 60; - const float secondNoMs = std::floor(secondWithMs); - const float secondFraction = secondWithMs - secondNoMs; - second = secondNoMs; - msec = qMin(qRound(secondFraction * 1000.0), 999); - } else { - // HH:mm:ss or HH:mm:ss.zzz - second = string.mid(6, 2).toInt(&ok); - if (!ok) - return QTime(); - if (size > 8 && (string.at(8) == QLatin1Char(',') || string.at(8) == QLatin1Char('.'))) { - const QStringRef msecStr(string.mid(9, 4)); - int msecInt = msecStr.isEmpty() ? 0 : msecStr.toInt(&ok); - if (!ok) - return QTime(); - const double secondFraction(msecInt / (std::pow(double(10), msecStr.count()))); - msec = qMin(qRound(secondFraction * 1000.0), 999); - } - } - - const bool isISODate = format == Qt::ISODate || format == Qt::ISODateWithMs; - if (isISODate && hour == 24 && minute == 0 && second == 0 && msec == 0) { - if (isMidnight24) - *isMidnight24 = true; - hour = 0; - } - - return QTime(hour, minute, second, msec); -} - -/*! - Returns the time represented in the \a string as a QTime using the - \a format given, or an invalid time if this is not possible. - - Note that fromString() uses a "C" locale encoded string to convert - milliseconds to a float value. If the default locale is not "C", - this may result in two conversion attempts (if the conversion - fails for the default locale). This should be considered an - implementation detail. - - \sa toString(), QLocale::toTime() -*/ -QTime QTime::fromString(const QString &string, Qt::DateFormat format) -{ - if (string.isEmpty()) - return QTime(); - - switch (format) { - case Qt::SystemLocaleDate: - case Qt::SystemLocaleShortDate: - return QLocale::system().toTime(string, QLocale::ShortFormat); - case Qt::SystemLocaleLongDate: - return QLocale::system().toTime(string, QLocale::LongFormat); - case Qt::LocaleDate: - case Qt::DefaultLocaleShortDate: - return QLocale().toTime(string, QLocale::ShortFormat); - case Qt::DefaultLocaleLongDate: - return QLocale().toTime(string, QLocale::LongFormat); - case Qt::RFC2822Date: - return rfcDateImpl(string).time; - case Qt::ISODate: - case Qt::ISODateWithMs: - case Qt::TextDate: - default: - return fromIsoTimeString(QStringRef(&string), format, 0); - } -} - -/*! - Returns the QTime represented by the \a string, using the \a - format given, or an invalid time if the string cannot be parsed. - - These expressions may be used for the format: - - \table - \header \li Expression \li Output - \row \li h - \li the hour without a leading zero (0 to 23 or 1 to 12 if AM/PM display) - \row \li hh - \li the hour with a leading zero (00 to 23 or 01 to 12 if AM/PM display) - \row \li m \li the minute without a leading zero (0 to 59) - \row \li mm \li the minute with a leading zero (00 to 59) - \row \li s \li the whole second, without any leading zero (0 to 59) - \row \li ss \li the whole second, with a leading zero where applicable (00 to 59) - \row \li z \li the fractional part of the second, to go after a decimal - point, without trailing zeroes (0 to 999). Thus "\c{s.z}" - reports the seconds to full available (millisecond) precision - without trailing zeroes. - \row \li zzz \li the fractional part of the second, to millisecond - precision, including trailing zeroes where applicable (000 to 999). - \row \li AP - \li interpret as an AM/PM time. \e AP must be either "AM" or "PM". - \row \li ap - \li Interpret as an AM/PM time. \e ap must be either "am" or "pm". - \endtable - - All other input characters will be treated as text. Any sequence - of characters that are enclosed in single quotes will also be - treated as text and not be used as an expression. - - \snippet code/src_corelib_tools_qdatetime.cpp 6 - - If the format is not satisfied, an invalid QTime is returned. - Expressions that do not expect leading zeroes to be given (h, m, s - and z) are greedy. This means that they will use two digits even if - this puts them outside the range of accepted values and leaves too - few digits for other sections. For example, the following string - could have meant 00:07:10, but the m will grab two digits, resulting - in an invalid time: - - \snippet code/src_corelib_tools_qdatetime.cpp 7 - - Any field that is not represented in the format will be set to zero. - For example: - - \snippet code/src_corelib_tools_qdatetime.cpp 8 - - \sa toString(), QDateTime::fromString(), QDate::fromString(), - QLocale::toTime() -*/ - -QTime QTime::fromString(const QString &string, const QString &format) -{ - QTime time; -#if QT_CONFIG(datetimeparser) - QDateTimeParser dt(QVariant::Time, QDateTimeParser::FromString); - // dt.setDefaultLocale(QLocale::c()); ### Qt 6 - if (dt.parseFormat(format)) - dt.fromString(string, 0, &time); -#else - Q_UNUSED(string); - Q_UNUSED(format); -#endif - return time; -} - -#endif // datestring - - -/*! - \overload - - Returns \c true if the specified time is valid; otherwise returns - false. - - The time is valid if \a h is in the range 0 to 23, \a m and - \a s are in the range 0 to 59, and \a ms is in the range 0 to 999. - - Example: - - \snippet code/src_corelib_tools_qdatetime.cpp 9 -*/ - -bool QTime::isValid(int h, int m, int s, int ms) -{ - return (uint)h < 24 && (uint)m < 60 && (uint)s < 60 && (uint)ms < 1000; -} - -#if QT_DEPRECATED_SINCE(5, 14) // ### Qt 6: remove -/*! - Sets this time to the current time. This is practical for timing: - - \snippet code/src_corelib_tools_qdatetime.cpp 10 - - \sa restart(), elapsed(), currentTime() -*/ - -void QTime::start() -{ - *this = currentTime(); -} - -/*! - Sets this time to the current time and returns the number of - milliseconds that have elapsed since the last time start() or - restart() was called. - - This function is guaranteed to be atomic and is thus very handy - for repeated measurements. Call start() to start the first - measurement, and restart() for each later measurement. - - Note that the counter wraps to zero 24 hours after the last call - to start() or restart(). - - \warning If the system's clock setting has been changed since the - last time start() or restart() was called, the result is - undefined. This can happen when daylight-saving time is turned on - or off. - - \sa start(), elapsed(), currentTime() -*/ - -int QTime::restart() -{ - QTime t = currentTime(); - int n = msecsTo(t); - if (n < 0) // passed midnight - n += 86400*1000; - *this = t; - return n; -} - -/*! - Returns the number of milliseconds that have elapsed since the - last time start() or restart() was called. - - Note that the counter wraps to zero 24 hours after the last call - to start() or restart. - - Note that the accuracy depends on the accuracy of the underlying - operating system; not all systems provide 1-millisecond accuracy. - - \warning If the system's clock setting has been changed since the - last time start() or restart() was called, the result is - undefined. This can happen when daylight-saving time is turned on - or off. - - \sa start(), restart() -*/ - -int QTime::elapsed() const -{ - int n = msecsTo(currentTime()); - if (n < 0) // passed midnight - n += 86400 * 1000; - return n; -} -#endif // Use QElapsedTimer instead ! - -/***************************************************************************** - QDateTime static helper functions - *****************************************************************************/ - -// get the types from QDateTime (through QDateTimePrivate) -typedef QDateTimePrivate::QDateTimeShortData ShortData; -typedef QDateTimePrivate::QDateTimeData QDateTimeData; - -// Returns the platform variant of timezone, i.e. the standard time offset -// The timezone external variable is documented as always holding the -// Standard Time offset as seconds west of Greenwich, i.e. UTC+01:00 is -3600 -// Note this may not be historicaly accurate. -// Relies on tzset, mktime, or localtime having been called to populate timezone -static int qt_timezone() -{ -#if defined(_MSC_VER) - long offset; - _get_timezone(&offset); - return offset; -#elif defined(Q_OS_BSD4) && !defined(Q_OS_DARWIN) - time_t clock = time(NULL); - struct tm t; - localtime_r(&clock, &t); - // QTBUG-36080 Workaround for systems without the POSIX timezone - // variable. This solution is not very efficient but fixing it is up to - // the libc implementations. - // - // tm_gmtoff has some important differences compared to the timezone - // variable: - // - It returns the number of seconds east of UTC, and we want the - // number of seconds west of UTC. - // - It also takes DST into account, so we need to adjust it to always - // get the Standard Time offset. - return -t.tm_gmtoff + (t.tm_isdst ? (long)SECS_PER_HOUR : 0L); -#elif defined(Q_OS_INTEGRITY) - return 0; -#else - return timezone; -#endif // Q_OS_WIN -} - -// Returns the tzname, assume tzset has been called already -static QString qt_tzname(QDateTimePrivate::DaylightStatus daylightStatus) -{ - int isDst = (daylightStatus == QDateTimePrivate::DaylightTime) ? 1 : 0; -#if defined(Q_CC_MSVC) - size_t s = 0; - char name[512]; - if (_get_tzname(&s, name, 512, isDst)) - return QString(); - return QString::fromLocal8Bit(name); -#else - return QString::fromLocal8Bit(tzname[isDst]); -#endif // Q_OS_WIN -} - -#if QT_CONFIG(datetimeparser) && QT_CONFIG(timezone) -/* - \internal - Implemented here to share qt_tzname() -*/ -int QDateTimeParser::startsWithLocalTimeZone(const QStringRef name) -{ - QDateTimePrivate::DaylightStatus zones[2] = { - QDateTimePrivate::StandardTime, - QDateTimePrivate::DaylightTime - }; - for (const auto z : zones) { - QString zone(qt_tzname(z)); - if (name.startsWith(zone)) - return zone.size(); - } - return 0; -} -#endif // datetimeparser && timezone - -// Calls the platform variant of mktime for the given date, time and daylightStatus, -// and updates the date, time, daylightStatus and abbreviation with the returned values -// If the date falls outside the 1970 to 2037 range supported by mktime / time_t -// then null date/time will be returned, you should adjust the date first if -// you need a guaranteed result. -static qint64 qt_mktime(QDate *date, QTime *time, QDateTimePrivate::DaylightStatus *daylightStatus, - QString *abbreviation, bool *ok = 0) -{ - const qint64 msec = time->msec(); - int yy, mm, dd; - date->getDate(&yy, &mm, &dd); - - // All other platforms provide standard C library time functions - tm local; - memset(&local, 0, sizeof(local)); // tm_[wy]day plus any non-standard fields - local.tm_sec = time->second(); - local.tm_min = time->minute(); - local.tm_hour = time->hour(); - local.tm_mday = dd; - local.tm_mon = mm - 1; - local.tm_year = yy - 1900; - if (daylightStatus) - local.tm_isdst = int(*daylightStatus); - else - local.tm_isdst = -1; - -#if defined(Q_OS_WIN) - int hh = local.tm_hour; -#endif // Q_OS_WIN - time_t secsSinceEpoch = qMkTime(&local); - if (secsSinceEpoch != time_t(-1)) { - *date = QDate(local.tm_year + 1900, local.tm_mon + 1, local.tm_mday); - *time = QTime(local.tm_hour, local.tm_min, local.tm_sec, msec); -#if defined(Q_OS_WIN) - // Windows mktime for the missing hour subtracts 1 hour from the time - // instead of adding 1 hour. If time differs and is standard time then - // this has happened, so add 2 hours to the time and 1 hour to the msecs - if (local.tm_isdst == 0 && local.tm_hour != hh) { - if (time->hour() >= 22) - *date = date->addDays(1); - *time = time->addSecs(2 * SECS_PER_HOUR); - secsSinceEpoch += SECS_PER_HOUR; - local.tm_isdst = 1; - } -#endif // Q_OS_WIN - if (local.tm_isdst >= 1) { - if (daylightStatus) - *daylightStatus = QDateTimePrivate::DaylightTime; - if (abbreviation) - *abbreviation = qt_tzname(QDateTimePrivate::DaylightTime); - } else if (local.tm_isdst == 0) { - if (daylightStatus) - *daylightStatus = QDateTimePrivate::StandardTime; - if (abbreviation) - *abbreviation = qt_tzname(QDateTimePrivate::StandardTime); - } else { - if (daylightStatus) - *daylightStatus = QDateTimePrivate::UnknownDaylightTime; - if (abbreviation) - *abbreviation = qt_tzname(QDateTimePrivate::StandardTime); - } - if (ok) - *ok = true; - } else { - *date = QDate(); - *time = QTime(); - if (daylightStatus) - *daylightStatus = QDateTimePrivate::UnknownDaylightTime; - if (abbreviation) - *abbreviation = QString(); - if (ok) - *ok = false; - } - - return ((qint64)secsSinceEpoch * 1000) + msec; -} - -// Calls the platform variant of localtime for the given msecs, and updates -// the date, time, and DST status with the returned values. -static bool qt_localtime(qint64 msecsSinceEpoch, QDate *localDate, QTime *localTime, - QDateTimePrivate::DaylightStatus *daylightStatus) -{ - const time_t secsSinceEpoch = msecsSinceEpoch / 1000; - const int msec = msecsSinceEpoch % 1000; - - tm local; - bool valid = false; - - // localtime() is specified to work as if it called tzset(). - // localtime_r() does not have this constraint, so make an explicit call. - // The explicit call should also request the timezone info be re-parsed. - qTzSet(); -#if QT_CONFIG(thread) && defined(_POSIX_THREAD_SAFE_FUNCTIONS) - // Use the reentrant version of localtime() where available - // as is thread-safe and doesn't use a shared static data area - tm *res = 0; - res = localtime_r(&secsSinceEpoch, &local); - if (res) - valid = true; -#elif defined(Q_CC_MSVC) - if (!_localtime64_s(&local, &secsSinceEpoch)) - valid = true; -#else - // Returns shared static data which may be overwritten at any time - // So copy the result asap - tm *res = 0; - res = localtime(&secsSinceEpoch); - if (res) { - local = *res; - valid = true; - } -#endif - if (valid) { - *localDate = QDate(local.tm_year + 1900, local.tm_mon + 1, local.tm_mday); - *localTime = QTime(local.tm_hour, local.tm_min, local.tm_sec, msec); - if (daylightStatus) { - if (local.tm_isdst > 0) - *daylightStatus = QDateTimePrivate::DaylightTime; - else if (local.tm_isdst < 0) - *daylightStatus = QDateTimePrivate::UnknownDaylightTime; - else - *daylightStatus = QDateTimePrivate::StandardTime; - } - return true; - } else { - *localDate = QDate(); - *localTime = QTime(); - if (daylightStatus) - *daylightStatus = QDateTimePrivate::UnknownDaylightTime; - return false; - } -} - -// Converts an msecs value into a date and time -static void msecsToTime(qint64 msecs, QDate *date, QTime *time) -{ - qint64 jd = JULIAN_DAY_FOR_EPOCH; - qint64 ds = 0; - - if (msecs >= MSECS_PER_DAY || msecs <= -MSECS_PER_DAY) { - jd += msecs / MSECS_PER_DAY; - msecs %= MSECS_PER_DAY; - } - - if (msecs < 0) { - ds = MSECS_PER_DAY - msecs - 1; - jd -= ds / MSECS_PER_DAY; - ds = ds % MSECS_PER_DAY; - ds = MSECS_PER_DAY - ds - 1; - } else { - ds = msecs; - } - - if (date) - *date = QDate::fromJulianDay(jd); - if (time) - *time = QTime::fromMSecsSinceStartOfDay(ds); -} - -// Converts a date/time value into msecs -static qint64 timeToMSecs(const QDate &date, const QTime &time) -{ - return ((date.toJulianDay() - JULIAN_DAY_FOR_EPOCH) * MSECS_PER_DAY) - + time.msecsSinceStartOfDay(); -} - -// Convert an MSecs Since Epoch into Local Time -static bool epochMSecsToLocalTime(qint64 msecs, QDate *localDate, QTime *localTime, - QDateTimePrivate::DaylightStatus *daylightStatus = 0) -{ - if (msecs < 0) { - // Docs state any LocalTime before 1970-01-01 will *not* have any Daylight Time applied - // Instead just use the standard offset from UTC to convert to UTC time - qTzSet(); - msecsToTime(msecs - qt_timezone() * 1000, localDate, localTime); - if (daylightStatus) - *daylightStatus = QDateTimePrivate::StandardTime; - return true; - } else if (msecs > (qint64(TIME_T_MAX) * 1000)) { - // Docs state any LocalTime after 2037-12-31 *will* have any DST applied - // but this may fall outside the supported time_t range, so need to fake it. - // Use existing method to fake the conversion, but this is deeply flawed as it may - // apply the conversion from the wrong day number, e.g. if rule is last Sunday of month - // TODO Use QTimeZone when available to apply the future rule correctly - QDate utcDate; - QTime utcTime; - msecsToTime(msecs, &utcDate, &utcTime); - int year, month, day; - utcDate.getDate(&year, &month, &day); - // 2037 is not a leap year, so make sure date isn't Feb 29 - if (month == 2 && day == 29) - --day; - QDate fakeDate(2037, month, day); - qint64 fakeMsecs = QDateTime(fakeDate, utcTime, Qt::UTC).toMSecsSinceEpoch(); - bool res = qt_localtime(fakeMsecs, localDate, localTime, daylightStatus); - *localDate = localDate->addDays(fakeDate.daysTo(utcDate)); - return res; - } else { - // Falls inside time_t suported range so can use localtime - return qt_localtime(msecs, localDate, localTime, daylightStatus); - } -} - -// Convert a LocalTime expressed in local msecs encoding and the corresponding -// DST status into a UTC epoch msecs. Optionally populate the returned -// values from mktime for the adjusted local date and time. -static qint64 localMSecsToEpochMSecs(qint64 localMsecs, - QDateTimePrivate::DaylightStatus *daylightStatus, - QDate *localDate = 0, QTime *localTime = 0, - QString *abbreviation = 0) -{ - QDate dt; - QTime tm; - msecsToTime(localMsecs, &dt, &tm); - - const qint64 msecsMax = qint64(TIME_T_MAX) * 1000; - - if (localMsecs <= qint64(MSECS_PER_DAY)) { - - // Docs state any LocalTime before 1970-01-01 will *not* have any DST applied - - // First, if localMsecs is within +/- 1 day of minimum time_t try mktime in case it does - // fall after minimum and needs proper DST conversion - if (localMsecs >= -qint64(MSECS_PER_DAY)) { - bool valid; - qint64 utcMsecs = qt_mktime(&dt, &tm, daylightStatus, abbreviation, &valid); - if (valid && utcMsecs >= 0) { - // mktime worked and falls in valid range, so use it - if (localDate) - *localDate = dt; - if (localTime) - *localTime = tm; - return utcMsecs; - } - } else { - // If we don't call mktime then need to call tzset to get offset - qTzSet(); - } - // Time is clearly before 1970-01-01 so just use standard offset to convert - qint64 utcMsecs = localMsecs + qt_timezone() * 1000; - if (localDate || localTime) - msecsToTime(localMsecs, localDate, localTime); - if (daylightStatus) - *daylightStatus = QDateTimePrivate::StandardTime; - if (abbreviation) - *abbreviation = qt_tzname(QDateTimePrivate::StandardTime); - return utcMsecs; - - } else if (localMsecs >= msecsMax - MSECS_PER_DAY) { - - // Docs state any LocalTime after 2037-12-31 *will* have any DST applied - // but this may fall outside the supported time_t range, so need to fake it. - - // First, if localMsecs is within +/- 1 day of maximum time_t try mktime in case it does - // fall before maximum and can use proper DST conversion - if (localMsecs <= msecsMax + MSECS_PER_DAY) { - bool valid; - qint64 utcMsecs = qt_mktime(&dt, &tm, daylightStatus, abbreviation, &valid); - if (valid && utcMsecs <= msecsMax) { - // mktime worked and falls in valid range, so use it - if (localDate) - *localDate = dt; - if (localTime) - *localTime = tm; - return utcMsecs; - } - } - // Use existing method to fake the conversion, but this is deeply flawed as it may - // apply the conversion from the wrong day number, e.g. if rule is last Sunday of month - // TODO Use QTimeZone when available to apply the future rule correctly - int year, month, day; - dt.getDate(&year, &month, &day); - // 2037 is not a leap year, so make sure date isn't Feb 29 - if (month == 2 && day == 29) - --day; - QDate fakeDate(2037, month, day); - qint64 fakeDiff = fakeDate.daysTo(dt); - qint64 utcMsecs = qt_mktime(&fakeDate, &tm, daylightStatus, abbreviation); - if (localDate) - *localDate = fakeDate.addDays(fakeDiff); - if (localTime) - *localTime = tm; - QDate utcDate; - QTime utcTime; - msecsToTime(utcMsecs, &utcDate, &utcTime); - utcDate = utcDate.addDays(fakeDiff); - utcMsecs = timeToMSecs(utcDate, utcTime); - return utcMsecs; - - } else { - - // Clearly falls inside 1970-2037 suported range so can use mktime - qint64 utcMsecs = qt_mktime(&dt, &tm, daylightStatus, abbreviation); - if (localDate) - *localDate = dt; - if (localTime) - *localTime = tm; - return utcMsecs; - - } -} - -static inline bool specCanBeSmall(Qt::TimeSpec spec) -{ - return spec == Qt::LocalTime || spec == Qt::UTC; -} - -static inline bool msecsCanBeSmall(qint64 msecs) -{ - if (!QDateTimeData::CanBeSmall) - return false; - - ShortData sd; - sd.msecs = qintptr(msecs); - return sd.msecs == msecs; -} - -static Q_DECL_CONSTEXPR inline -QDateTimePrivate::StatusFlags mergeSpec(QDateTimePrivate::StatusFlags status, Qt::TimeSpec spec) -{ - return QDateTimePrivate::StatusFlags((status & ~QDateTimePrivate::TimeSpecMask) | - (int(spec) << QDateTimePrivate::TimeSpecShift)); -} - -static Q_DECL_CONSTEXPR inline Qt::TimeSpec extractSpec(QDateTimePrivate::StatusFlags status) -{ - return Qt::TimeSpec((status & QDateTimePrivate::TimeSpecMask) >> QDateTimePrivate::TimeSpecShift); -} - -// Set the Daylight Status if LocalTime set via msecs -static Q_DECL_RELAXED_CONSTEXPR inline QDateTimePrivate::StatusFlags -mergeDaylightStatus(QDateTimePrivate::StatusFlags sf, QDateTimePrivate::DaylightStatus status) -{ - sf &= ~QDateTimePrivate::DaylightMask; - if (status == QDateTimePrivate::DaylightTime) { - sf |= QDateTimePrivate::SetToDaylightTime; - } else if (status == QDateTimePrivate::StandardTime) { - sf |= QDateTimePrivate::SetToStandardTime; - } - return sf; -} - -// Get the DST Status if LocalTime set via msecs -static Q_DECL_RELAXED_CONSTEXPR inline -QDateTimePrivate::DaylightStatus extractDaylightStatus(QDateTimePrivate::StatusFlags status) -{ - if (status & QDateTimePrivate::SetToDaylightTime) - return QDateTimePrivate::DaylightTime; - if (status & QDateTimePrivate::SetToStandardTime) - return QDateTimePrivate::StandardTime; - return QDateTimePrivate::UnknownDaylightTime; -} - -static inline qint64 getMSecs(const QDateTimeData &d) -{ - if (d.isShort()) { - // same as, but producing better code - //return d.data.msecs; - return qintptr(d.d) >> 8; - } - return d->m_msecs; -} - -static inline QDateTimePrivate::StatusFlags getStatus(const QDateTimeData &d) -{ - if (d.isShort()) { - // same as, but producing better code - //return StatusFlag(d.data.status); - return QDateTimePrivate::StatusFlag(qintptr(d.d) & 0xFF); - } - return d->m_status; -} - -static inline Qt::TimeSpec getSpec(const QDateTimeData &d) -{ - return extractSpec(getStatus(d)); -} - -#if QT_CONFIG(timezone) -void QDateTimePrivate::setUtcOffsetByTZ(qint64 atMSecsSinceEpoch) -{ - m_offsetFromUtc = m_timeZone.d->offsetFromUtc(atMSecsSinceEpoch); -} -#endif - -// Refresh the LocalTime validity and offset -static void refreshDateTime(QDateTimeData &d) -{ - auto status = getStatus(d); - const auto spec = extractSpec(status); - const qint64 msecs = getMSecs(d); - qint64 epochMSecs = 0; - int offsetFromUtc = 0; - QDate testDate; - QTime testTime; - Q_ASSERT(spec == Qt::TimeZone || spec == Qt::LocalTime); - -#if QT_CONFIG(timezone) - // If not valid time zone then is invalid - if (spec == Qt::TimeZone) { - if (!d->m_timeZone.isValid()) { - status &= ~QDateTimePrivate::ValidDateTime; - } else { - epochMSecs = QDateTimePrivate::zoneMSecsToEpochMSecs(msecs, d->m_timeZone, extractDaylightStatus(status), &testDate, &testTime); - d->setUtcOffsetByTZ(epochMSecs); - } - } -#endif // timezone - - // If not valid date and time then is invalid - if (!(status & QDateTimePrivate::ValidDate) || !(status & QDateTimePrivate::ValidTime)) { - status &= ~QDateTimePrivate::ValidDateTime; - if (status & QDateTimePrivate::ShortData) { - d.data.status = status; - } else { - d->m_status = status; - d->m_offsetFromUtc = 0; - } - return; - } - - // We have a valid date and time and a Qt::LocalTime or Qt::TimeZone that needs calculating - // LocalTime and TimeZone might fall into a "missing" DST transition hour - // Calling toEpochMSecs will adjust the returned date/time if it does - if (spec == Qt::LocalTime) { - auto dstStatus = extractDaylightStatus(status); - epochMSecs = localMSecsToEpochMSecs(msecs, &dstStatus, &testDate, &testTime); - } - if (timeToMSecs(testDate, testTime) == msecs) { - status |= QDateTimePrivate::ValidDateTime; - // Cache the offset to use in offsetFromUtc() - offsetFromUtc = (msecs - epochMSecs) / 1000; - } else { - status &= ~QDateTimePrivate::ValidDateTime; - } - - if (status & QDateTimePrivate::ShortData) { - d.data.status = status; - } else { - d->m_status = status; - d->m_offsetFromUtc = offsetFromUtc; - } -} - -// Check the UTC / offsetFromUTC validity -static void checkValidDateTime(QDateTimeData &d) -{ - auto status = getStatus(d); - auto spec = extractSpec(status); - switch (spec) { - case Qt::OffsetFromUTC: - case Qt::UTC: - // for these, a valid date and a valid time imply a valid QDateTime - if ((status & QDateTimePrivate::ValidDate) && (status & QDateTimePrivate::ValidTime)) - status |= QDateTimePrivate::ValidDateTime; - else - status &= ~QDateTimePrivate::ValidDateTime; - if (status & QDateTimePrivate::ShortData) - d.data.status = status; - else - d->m_status = status; - break; - case Qt::TimeZone: - case Qt::LocalTime: - // for these, we need to check whether the timezone is valid and whether - // the time is valid in that timezone. Expensive, but no other option. - refreshDateTime(d); - break; - } -} - -static void setTimeSpec(QDateTimeData &d, Qt::TimeSpec spec, int offsetSeconds) -{ - auto status = getStatus(d); - status &= ~(QDateTimePrivate::ValidDateTime | QDateTimePrivate::DaylightMask | - QDateTimePrivate::TimeSpecMask); - - switch (spec) { - case Qt::OffsetFromUTC: - if (offsetSeconds == 0) - spec = Qt::UTC; - break; - case Qt::TimeZone: - // Use system time zone instead - spec = Qt::LocalTime; - Q_FALLTHROUGH(); - case Qt::UTC: - case Qt::LocalTime: - offsetSeconds = 0; - break; - } - - status = mergeSpec(status, spec); - if (d.isShort() && offsetSeconds == 0) { - d.data.status = status; - } else { - d.detach(); - d->m_status = status & ~QDateTimePrivate::ShortData; - d->m_offsetFromUtc = offsetSeconds; -#if QT_CONFIG(timezone) - d->m_timeZone = QTimeZone(); -#endif // timezone - } -} - -static void setDateTime(QDateTimeData &d, const QDate &date, const QTime &time) -{ - // If the date is valid and the time is not we set time to 00:00:00 - QTime useTime = time; - if (!useTime.isValid() && date.isValid()) - useTime = QTime::fromMSecsSinceStartOfDay(0); - - QDateTimePrivate::StatusFlags newStatus = 0; - - // Set date value and status - qint64 days = 0; - if (date.isValid()) { - days = date.toJulianDay() - JULIAN_DAY_FOR_EPOCH; - newStatus = QDateTimePrivate::ValidDate; - } - - // Set time value and status - int ds = 0; - if (useTime.isValid()) { - ds = useTime.msecsSinceStartOfDay(); - newStatus |= QDateTimePrivate::ValidTime; - } - - // Set msecs serial value - qint64 msecs = (days * MSECS_PER_DAY) + ds; - if (d.isShort()) { - // let's see if we can keep this short - if (msecsCanBeSmall(msecs)) { - // yes, we can - d.data.msecs = qintptr(msecs); - d.data.status &= ~(QDateTimePrivate::ValidityMask | QDateTimePrivate::DaylightMask); - d.data.status |= newStatus; - } else { - // nope... - d.detach(); - } - } - if (!d.isShort()) { - d.detach(); - d->m_msecs = msecs; - d->m_status &= ~(QDateTimePrivate::ValidityMask | QDateTimePrivate::DaylightMask); - d->m_status |= newStatus; - } - - // Set if date and time are valid - checkValidDateTime(d); -} - -static QPair<QDate, QTime> getDateTime(const QDateTimeData &d) -{ - QPair<QDate, QTime> result; - qint64 msecs = getMSecs(d); - auto status = getStatus(d); - msecsToTime(msecs, &result.first, &result.second); - - if (!status.testFlag(QDateTimePrivate::ValidDate)) - result.first = QDate(); - - if (!status.testFlag(QDateTimePrivate::ValidTime)) - result.second = QTime(); - - return result; -} - -/***************************************************************************** - QDateTime::Data member functions - *****************************************************************************/ - -inline QDateTime::Data::Data() -{ - // default-constructed data has a special exception: - // it can be small even if CanBeSmall == false - // (optimization so we don't allocate memory in the default constructor) - quintptr value = quintptr(mergeSpec(QDateTimePrivate::ShortData, Qt::LocalTime)); - d = reinterpret_cast<QDateTimePrivate *>(value); -} - -inline QDateTime::Data::Data(Qt::TimeSpec spec) -{ - if (CanBeSmall && Q_LIKELY(specCanBeSmall(spec))) { - d = reinterpret_cast<QDateTimePrivate *>(quintptr(mergeSpec(QDateTimePrivate::ShortData, spec))); - } else { - // the structure is too small, we need to detach - d = new QDateTimePrivate; - d->ref.ref(); - d->m_status = mergeSpec(0, spec); - } -} - -inline QDateTime::Data::Data(const Data &other) - : d(other.d) -{ - if (!isShort()) { - // check if we could shrink - if (specCanBeSmall(extractSpec(d->m_status)) && msecsCanBeSmall(d->m_msecs)) { - ShortData sd; - sd.msecs = qintptr(d->m_msecs); - sd.status = d->m_status | QDateTimePrivate::ShortData; - data = sd; - } else { - // no, have to keep it big - d->ref.ref(); - } - } -} - -inline QDateTime::Data::Data(Data &&other) - : d(other.d) -{ - // reset the other to a short state - Data dummy; - Q_ASSERT(dummy.isShort()); - other.d = dummy.d; -} - -inline QDateTime::Data &QDateTime::Data::operator=(const Data &other) -{ - if (d == other.d) - return *this; - - auto x = d; - d = other.d; - if (!other.isShort()) { - // check if we could shrink - if (specCanBeSmall(extractSpec(other.d->m_status)) && msecsCanBeSmall(other.d->m_msecs)) { - ShortData sd; - sd.msecs = qintptr(other.d->m_msecs); - sd.status = other.d->m_status | QDateTimePrivate::ShortData; - data = sd; - } else { - // no, have to keep it big - other.d->ref.ref(); - } - } - - if (!(quintptr(x) & QDateTimePrivate::ShortData) && !x->ref.deref()) - delete x; - return *this; -} - -inline QDateTime::Data::~Data() -{ - if (!isShort() && !d->ref.deref()) - delete d; -} - -inline bool QDateTime::Data::isShort() const -{ - bool b = quintptr(d) & QDateTimePrivate::ShortData; - - // sanity check: - Q_ASSERT(b || (d->m_status & QDateTimePrivate::ShortData) == 0); - - // even if CanBeSmall = false, we have short data for a default-constructed - // QDateTime object. But it's unlikely. - if (CanBeSmall) - return Q_LIKELY(b); - return Q_UNLIKELY(b); -} - -inline void QDateTime::Data::detach() -{ - QDateTimePrivate *x; - bool wasShort = isShort(); - if (wasShort) { - // force enlarging - x = new QDateTimePrivate; - x->m_status = QDateTimePrivate::StatusFlag(data.status & ~QDateTimePrivate::ShortData); - x->m_msecs = data.msecs; - } else { - if (d->ref.load() == 1) - return; - - x = new QDateTimePrivate(*d); - } - - x->ref.store(1); - if (!wasShort && !d->ref.deref()) - delete d; - d = x; -} - -inline const QDateTimePrivate *QDateTime::Data::operator->() const -{ - Q_ASSERT(!isShort()); - return d; -} - -inline QDateTimePrivate *QDateTime::Data::operator->() -{ - // should we attempt to detach here? - Q_ASSERT(!isShort()); - Q_ASSERT(d->ref.load() == 1); - return d; -} - -/***************************************************************************** - QDateTimePrivate member functions - *****************************************************************************/ - -Q_NEVER_INLINE -QDateTime::Data QDateTimePrivate::create(const QDate &toDate, const QTime &toTime, Qt::TimeSpec toSpec, - int offsetSeconds) -{ - QDateTime::Data result(toSpec); - setTimeSpec(result, toSpec, offsetSeconds); - setDateTime(result, toDate, toTime); - return result; -} - -#if QT_CONFIG(timezone) -inline QDateTime::Data QDateTimePrivate::create(const QDate &toDate, const QTime &toTime, - const QTimeZone &toTimeZone) -{ - QDateTime::Data result(Qt::TimeZone); - Q_ASSERT(!result.isShort()); - - result.d->m_status = mergeSpec(result.d->m_status, Qt::TimeZone); - result.d->m_timeZone = toTimeZone; - setDateTime(result, toDate, toTime); - return result; -} - -// Convert a TimeZone time expressed in zone msecs encoding into a UTC epoch msecs -// DST transitions are disambiguated by hint. -inline qint64 QDateTimePrivate::zoneMSecsToEpochMSecs(qint64 zoneMSecs, const QTimeZone &zone, - DaylightStatus hint, - QDate *zoneDate, QTime *zoneTime) -{ - // Get the effective data from QTimeZone - QTimeZonePrivate::Data data = zone.d->dataForLocalTime(zoneMSecs, int(hint)); - // Docs state any time before 1970-01-01 will *not* have any DST applied - // but all affected times afterwards will have DST applied. - if (data.atMSecsSinceEpoch < 0) { - msecsToTime(zoneMSecs, zoneDate, zoneTime); - return zoneMSecs - data.standardTimeOffset * 1000; - } else { - msecsToTime(data.atMSecsSinceEpoch + data.offsetFromUtc * 1000, zoneDate, zoneTime); - return data.atMSecsSinceEpoch; - } -} -#endif // timezone - -/***************************************************************************** - QDateTime member functions - *****************************************************************************/ - -/*! - \class QDateTime - \inmodule QtCore - \ingroup shared - \reentrant - \brief The QDateTime class provides date and time functions. - - - A QDateTime object encodes a calendar date and a clock time (a - "datetime"). It combines features of the QDate and QTime classes. - It can read the current datetime from the system clock. It - provides functions for comparing datetimes and for manipulating a - datetime by adding a number of seconds, days, months, or years. - - A QDateTime object is typically created either by giving a date - and time explicitly in the constructor, or by using the static - function currentDateTime() that returns a QDateTime object set - to the system clock's time. The date and time can be changed with - setDate() and setTime(). A datetime can also be set using the - setTime_t() function that takes a POSIX-standard "number of - seconds since 00:00:00 on January 1, 1970" value. The fromString() - function returns a QDateTime, given a string and a date format - used to interpret the date within the string. - - The date() and time() functions provide access to the date and - time parts of the datetime. The same information is provided in - textual format by the toString() function. - - QDateTime provides a full set of operators to compare two - QDateTime objects, where smaller means earlier and larger means - later. - - You can increment (or decrement) a datetime by a given number of - milliseconds using addMSecs(), seconds using addSecs(), or days - using addDays(). Similarly, you can use addMonths() and addYears(). - The daysTo() function returns the number of days between two datetimes, - secsTo() returns the number of seconds between two datetimes, and - msecsTo() returns the number of milliseconds between two datetimes. - - QDateTime can store datetimes as \l{Qt::LocalTime}{local time} or - as \l{Qt::UTC}{UTC}. QDateTime::currentDateTime() returns a - QDateTime expressed as local time; use toUTC() to convert it to - UTC. You can also use timeSpec() to find out if a QDateTime - object stores a UTC time or a local time. Operations such as - addSecs() and secsTo() are aware of daylight-saving time (DST). - - \note QDateTime does not account for leap seconds. - - \section1 Remarks - - \section2 No Year 0 - - There is no year 0. Dates in that year are considered invalid. The - year -1 is the year "1 before Christ" or "1 before current era." - The day before 1 January 1 CE is 31 December 1 BCE. - - \section2 Range of Valid Dates - - The range of valid values able to be stored in QDateTime is dependent on - the internal storage implementation. QDateTime is currently stored in a - qint64 as a serial msecs value encoding the date and time. This restricts - the date range to about +/- 292 million years, compared to the QDate range - of +/- 2 billion years. Care must be taken when creating a QDateTime with - extreme values that you do not overflow the storage. The exact range of - supported values varies depending on the Qt::TimeSpec and time zone. - - \section2 Use of System Timezone - - QDateTime uses the system's time zone information to determine the - offset of local time from UTC. If the system is not configured - correctly or not up-to-date, QDateTime will give wrong results as - well. - - \section2 Daylight-Saving Time (DST) - - QDateTime takes into account the system's time zone information - when dealing with DST. On modern Unix systems, this means it - applies the correct historical DST data whenever possible. On - Windows, where the system doesn't support historical DST data, - historical accuracy is not maintained with respect to DST. - - The range of valid dates taking DST into account is 1970-01-01 to - the present, and rules are in place for handling DST correctly - until 2037-12-31, but these could change. For dates falling - outside that range, QDateTime makes a \e{best guess} using the - rules for year 1970 or 2037, but we can't guarantee accuracy. This - means QDateTime doesn't take into account changes in a locale's - time zone before 1970, even if the system's time zone database - supports that information. - - QDateTime takes into consideration the Standard Time to Daylight-Saving Time - transition. For example if the transition is at 2am and the clock goes - forward to 3am, then there is a "missing" hour from 02:00:00 to 02:59:59.999 - which QDateTime considers to be invalid. Any date maths performed - will take this missing hour into account and return a valid result. - - \section2 Offset From UTC - - A Qt::TimeSpec of Qt::OffsetFromUTC is also supported. This allows you - to define a QDateTime relative to UTC at a fixed offset of a given number - of seconds from UTC. For example, an offset of +3600 seconds is one hour - ahead of UTC and is usually written in ISO standard notation as - "UTC+01:00". Daylight-Saving Time never applies with this TimeSpec. - - There is no explicit size restriction to the offset seconds, but there is - an implicit limit imposed when using the toString() and fromString() - methods which use a format of [+|-]hh:mm, effectively limiting the range - to +/- 99 hours and 59 minutes and whole minutes only. Note that currently - no time zone lies outside the range of +/- 14 hours. - - \section2 Time Zone Support - - A Qt::TimeSpec of Qt::TimeZone is also supported in conjunction with the - QTimeZone class. This allows you to define a datetime in a named time zone - adhering to a consistent set of daylight-saving transition rules. For - example a time zone of "Europe/Berlin" will apply the daylight-saving - rules as used in Germany since 1970. Note that the transition rules - applied depend on the platform support. See the QTimeZone documentation - for more details. - - \sa QDate, QTime, QDateTimeEdit, QTimeZone -*/ - -/*! - Constructs a null datetime (i.e. null date and null time). A null - datetime is invalid, since the date is invalid. - - \sa isValid() -*/ -QDateTime::QDateTime() noexcept(Data::CanBeSmall) -{ -} - - -/*! - Constructs a datetime with the given \a date, a valid - time(00:00:00.000), and sets the timeSpec() to Qt::LocalTime. -*/ - -QDateTime::QDateTime(const QDate &date) - : d(QDateTimePrivate::create(date, QTime(0, 0), Qt::LocalTime, 0)) -{ -} - -/*! - Constructs a datetime with the given \a date and \a time, using - the time specification defined by \a spec. - - If \a date is valid and \a time is not, the time will be set to midnight. - - If \a spec is Qt::OffsetFromUTC then it will be set to Qt::UTC, i.e. an - offset of 0 seconds. To create a Qt::OffsetFromUTC datetime use the - correct constructor. - - If \a spec is Qt::TimeZone then the spec will be set to Qt::LocalTime, - i.e. the current system time zone. To create a Qt::TimeZone datetime - use the correct constructor. -*/ - -QDateTime::QDateTime(const QDate &date, const QTime &time, Qt::TimeSpec spec) - : d(QDateTimePrivate::create(date, time, spec, 0)) -{ -} - -/*! - \since 5.2 - - Constructs a datetime with the given \a date and \a time, using - the time specification defined by \a spec and \a offsetSeconds seconds. - - If \a date is valid and \a time is not, the time will be set to midnight. - - If the \a spec is not Qt::OffsetFromUTC then \a offsetSeconds will be ignored. - - If the \a spec is Qt::OffsetFromUTC and \a offsetSeconds is 0 then the - timeSpec() will be set to Qt::UTC, i.e. an offset of 0 seconds. - - If \a spec is Qt::TimeZone then the spec will be set to Qt::LocalTime, - i.e. the current system time zone. To create a Qt::TimeZone datetime - use the correct constructor. -*/ - -QDateTime::QDateTime(const QDate &date, const QTime &time, Qt::TimeSpec spec, int offsetSeconds) - : d(QDateTimePrivate::create(date, time, spec, offsetSeconds)) -{ -} - -#if QT_CONFIG(timezone) -/*! - \since 5.2 - - Constructs a datetime with the given \a date and \a time, using - the Time Zone specified by \a timeZone. - - If \a date is valid and \a time is not, the time will be set to 00:00:00. - - If \a timeZone is invalid then the datetime will be invalid. -*/ - -QDateTime::QDateTime(const QDate &date, const QTime &time, const QTimeZone &timeZone) - : d(QDateTimePrivate::create(date, time, timeZone)) -{ -} -#endif // timezone - -/*! - Constructs a copy of the \a other datetime. -*/ -QDateTime::QDateTime(const QDateTime &other) noexcept - : d(other.d) -{ -} - -/*! - \since 5.8 - Moves the content of the temporary \a other datetime to this object and - leaves \a other in an unspecified (but proper) state. -*/ -QDateTime::QDateTime(QDateTime &&other) noexcept - : d(std::move(other.d)) -{ -} - -/*! - Destroys the datetime. -*/ -QDateTime::~QDateTime() -{ -} - -/*! - Makes a copy of the \a other datetime and returns a reference to the - copy. -*/ - -QDateTime &QDateTime::operator=(const QDateTime &other) noexcept -{ - d = other.d; - return *this; -} -/*! - \fn void QDateTime::swap(QDateTime &other) - \since 5.0 - - Swaps this datetime with \a other. This operation is very fast - and never fails. -*/ - -/*! - Returns \c true if both the date and the time are null; otherwise - returns \c false. A null datetime is invalid. - - \sa QDate::isNull(), QTime::isNull(), isValid() -*/ - -bool QDateTime::isNull() const -{ - auto status = getStatus(d); - return !status.testFlag(QDateTimePrivate::ValidDate) && - !status.testFlag(QDateTimePrivate::ValidTime); -} - -/*! - Returns \c true if both the date and the time are valid and they are valid in - the current Qt::TimeSpec, otherwise returns \c false. - - If the timeSpec() is Qt::LocalTime or Qt::TimeZone then the date and time are - checked to see if they fall in the Standard Time to Daylight-Saving Time transition - hour, i.e. if the transition is at 2am and the clock goes forward to 3am - then the time from 02:00:00 to 02:59:59.999 is considered to be invalid. - - \sa QDate::isValid(), QTime::isValid() -*/ - -bool QDateTime::isValid() const -{ - auto status = getStatus(d); - return status & QDateTimePrivate::ValidDateTime; -} - -/*! - Returns the date part of the datetime. - - \sa setDate(), time(), timeSpec() -*/ - -QDate QDateTime::date() const -{ - auto status = getStatus(d); - if (!status.testFlag(QDateTimePrivate::ValidDate)) - return QDate(); - QDate dt; - msecsToTime(getMSecs(d), &dt, 0); - return dt; -} - -/*! - Returns the time part of the datetime. - - \sa setTime(), date(), timeSpec() -*/ - -QTime QDateTime::time() const -{ - auto status = getStatus(d); - if (!status.testFlag(QDateTimePrivate::ValidTime)) - return QTime(); - QTime tm; - msecsToTime(getMSecs(d), 0, &tm); - return tm; -} - -/*! - Returns the time specification of the datetime. - - \sa setTimeSpec(), date(), time(), Qt::TimeSpec -*/ - -Qt::TimeSpec QDateTime::timeSpec() const -{ - return getSpec(d); -} - -#if QT_CONFIG(timezone) -/*! - \since 5.2 - - Returns the time zone of the datetime. - - If the timeSpec() is Qt::LocalTime then an instance of the current system - time zone will be returned. Note however that if you copy this time zone - the instance will not remain in sync if the system time zone changes. - - \sa setTimeZone(), Qt::TimeSpec -*/ - -QTimeZone QDateTime::timeZone() const -{ - switch (getSpec(d)) { - case Qt::UTC: - return QTimeZone::utc(); - case Qt::OffsetFromUTC: - return QTimeZone(d->m_offsetFromUtc); - case Qt::TimeZone: - Q_ASSERT(d->m_timeZone.isValid()); - return d->m_timeZone; - case Qt::LocalTime: - return QTimeZone::systemTimeZone(); - } - return QTimeZone(); -} -#endif // timezone - -/*! - \since 5.2 - - Returns the current Offset From UTC in seconds. - - If the timeSpec() is Qt::OffsetFromUTC this will be the value originally set. - - If the timeSpec() is Qt::TimeZone this will be the offset effective in the - Time Zone including any Daylight-Saving Offset. - - If the timeSpec() is Qt::LocalTime this will be the difference between the - Local Time and UTC including any Daylight-Saving Offset. - - If the timeSpec() is Qt::UTC this will be 0. - - \sa setOffsetFromUtc() -*/ - -int QDateTime::offsetFromUtc() const -{ - if (!d.isShort()) - return d->m_offsetFromUtc; - if (!isValid()) - return 0; - - auto spec = getSpec(d); - if (spec == Qt::LocalTime) { - // we didn't cache the value, so we need to calculate it now... - qint64 msecs = getMSecs(d); - return (msecs - toMSecsSinceEpoch()) / 1000; - } - - Q_ASSERT(spec == Qt::UTC); - return 0; -} - -/*! - \since 5.2 - - Returns the Time Zone Abbreviation for the datetime. - - If the timeSpec() is Qt::UTC this will be "UTC". - - If the timeSpec() is Qt::OffsetFromUTC this will be in the format - "UTC[+-]00:00". - - If the timeSpec() is Qt::LocalTime then the host system is queried for the - correct abbreviation. - - Note that abbreviations may or may not be localized. - - Note too that the abbreviation is not guaranteed to be a unique value, - i.e. different time zones may have the same abbreviation. - - \sa timeSpec() -*/ - -QString QDateTime::timeZoneAbbreviation() const -{ - switch (getSpec(d)) { - case Qt::UTC: - return QLatin1String("UTC"); - case Qt::OffsetFromUTC: - return QLatin1String("UTC") + toOffsetString(Qt::ISODate, d->m_offsetFromUtc); - case Qt::TimeZone: -#if !QT_CONFIG(timezone) - break; -#else - return d->m_timeZone.d->abbreviation(toMSecsSinceEpoch()); -#endif // timezone - case Qt::LocalTime: { - QString abbrev; - auto status = extractDaylightStatus(getStatus(d)); - localMSecsToEpochMSecs(getMSecs(d), &status, 0, 0, &abbrev); - return abbrev; - } - } - return QString(); -} - -/*! - \since 5.2 - - Returns if this datetime falls in Daylight-Saving Time. - - If the Qt::TimeSpec is not Qt::LocalTime or Qt::TimeZone then will always - return false. - - \sa timeSpec() -*/ - -bool QDateTime::isDaylightTime() const -{ - switch (getSpec(d)) { - case Qt::UTC: - case Qt::OffsetFromUTC: - return false; - case Qt::TimeZone: -#if !QT_CONFIG(timezone) - break; -#else - return d->m_timeZone.d->isDaylightTime(toMSecsSinceEpoch()); -#endif // timezone - case Qt::LocalTime: { - auto status = extractDaylightStatus(getStatus(d)); - if (status == QDateTimePrivate::UnknownDaylightTime) - localMSecsToEpochMSecs(getMSecs(d), &status); - return (status == QDateTimePrivate::DaylightTime); - } - } - return false; -} - -/*! - Sets the date part of this datetime to \a date. If no time is set yet, it - is set to midnight. If \a date is invalid, this QDateTime becomes invalid. - - \sa date(), setTime(), setTimeSpec() -*/ - -void QDateTime::setDate(const QDate &date) -{ - setDateTime(d, date, time()); -} - -/*! - Sets the time part of this datetime to \a time. If \a time is not valid, - this function sets it to midnight. Therefore, it's possible to clear any - set time in a QDateTime by setting it to a default QTime: - - \code - QDateTime dt = QDateTime::currentDateTime(); - dt.setTime(QTime()); - \endcode - - \sa time(), setDate(), setTimeSpec() -*/ - -void QDateTime::setTime(const QTime &time) -{ - setDateTime(d, date(), time); -} - -/*! - Sets the time specification used in this datetime to \a spec. - The datetime will refer to a different point in time. - - If \a spec is Qt::OffsetFromUTC then the timeSpec() will be set - to Qt::UTC, i.e. an effective offset of 0. - - If \a spec is Qt::TimeZone then the spec will be set to Qt::LocalTime, - i.e. the current system time zone. - - Example: - \snippet code/src_corelib_tools_qdatetime.cpp 19 - - \sa timeSpec(), setDate(), setTime(), setTimeZone(), Qt::TimeSpec -*/ - -void QDateTime::setTimeSpec(Qt::TimeSpec spec) -{ - QT_PREPEND_NAMESPACE(setTimeSpec(d, spec, 0)); - checkValidDateTime(d); -} - -/*! - \since 5.2 - - Sets the timeSpec() to Qt::OffsetFromUTC and the offset to \a offsetSeconds. - The datetime will refer to a different point in time. - - The maximum and minimum offset is 14 positive or negative hours. If - \a offsetSeconds is larger or smaller than that, then the result is - undefined. - - If \a offsetSeconds is 0 then the timeSpec() will be set to Qt::UTC. - - \sa isValid(), offsetFromUtc() -*/ - -void QDateTime::setOffsetFromUtc(int offsetSeconds) -{ - QT_PREPEND_NAMESPACE(setTimeSpec(d, Qt::OffsetFromUTC, offsetSeconds)); - checkValidDateTime(d); -} - -#if QT_CONFIG(timezone) -/*! - \since 5.2 - - Sets the time zone used in this datetime to \a toZone. - The datetime will refer to a different point in time. - - If \a toZone is invalid then the datetime will be invalid. - - \sa timeZone(), Qt::TimeSpec -*/ - -void QDateTime::setTimeZone(const QTimeZone &toZone) -{ - d.detach(); // always detach - d->m_status = mergeSpec(d->m_status, Qt::TimeZone); - d->m_offsetFromUtc = 0; - d->m_timeZone = toZone; - refreshDateTime(d); -} -#endif // timezone - -/*! - \since 4.7 - - Returns the datetime as the number of milliseconds that have passed - since 1970-01-01T00:00:00.000, Coordinated Universal Time (Qt::UTC). - - On systems that do not support time zones, this function will - behave as if local time were Qt::UTC. - - The behavior for this function is undefined if the datetime stored in - this object is not valid. However, for all valid dates, this function - returns a unique value. - - \sa toSecsSinceEpoch(), setMSecsSinceEpoch() -*/ -qint64 QDateTime::toMSecsSinceEpoch() const -{ - switch (getSpec(d)) { - case Qt::UTC: - return getMSecs(d); - - case Qt::OffsetFromUTC: - return d->m_msecs - (d->m_offsetFromUtc * 1000); - - case Qt::LocalTime: { - // recalculate the local timezone - auto status = extractDaylightStatus(getStatus(d)); - return localMSecsToEpochMSecs(getMSecs(d), &status); - } - - case Qt::TimeZone: -#if !QT_CONFIG(timezone) - return 0; -#else - return QDateTimePrivate::zoneMSecsToEpochMSecs(d->m_msecs, d->m_timeZone, - extractDaylightStatus(getStatus(d))); -#endif - } - Q_UNREACHABLE(); - return 0; -} - -/*! - \since 5.8 - - Returns the datetime as the number of seconds that have passed since - 1970-01-01T00:00:00.000, Coordinated Universal Time (Qt::UTC). - - On systems that do not support time zones, this function will - behave as if local time were Qt::UTC. - - The behavior for this function is undefined if the datetime stored in - this object is not valid. However, for all valid dates, this function - returns a unique value. - - \sa toMSecsSinceEpoch(), setSecsSinceEpoch() -*/ -qint64 QDateTime::toSecsSinceEpoch() const -{ - return toMSecsSinceEpoch() / 1000; -} - -#if QT_DEPRECATED_SINCE(5, 8) -/*! - \deprecated - - Returns the datetime as the number of seconds that have passed - since 1970-01-01T00:00:00, Coordinated Universal Time (Qt::UTC). - - On systems that do not support time zones, this function will - behave as if local time were Qt::UTC. - - \note This function returns a 32-bit unsigned integer and is deprecated. - - If the date is outside the range 1970-01-01T00:00:00 to - 2106-02-07T06:28:14, this function returns -1 cast to an unsigned integer - (i.e., 0xFFFFFFFF). - - To get an extended range, use toMSecsSinceEpoch() or toSecsSinceEpoch(). - - \sa toSecsSinceEpoch(), toMSecsSinceEpoch(), setTime_t() -*/ - -uint QDateTime::toTime_t() const -{ - if (!isValid()) - return uint(-1); - qint64 retval = toMSecsSinceEpoch() / 1000; - if (quint64(retval) >= Q_UINT64_C(0xFFFFFFFF)) - return uint(-1); - return uint(retval); -} -#endif - -/*! - \since 4.7 - - Sets the date and time given the number of milliseconds \a msecs that have - passed since 1970-01-01T00:00:00.000, Coordinated Universal Time - (Qt::UTC). On systems that do not support time zones this function - will behave as if local time were Qt::UTC. - - Note that passing the minimum of \c qint64 - (\c{std::numeric_limits<qint64>::min()}) to \a msecs will result in - undefined behavior. - - \sa toMSecsSinceEpoch(), setSecsSinceEpoch() -*/ -void QDateTime::setMSecsSinceEpoch(qint64 msecs) -{ - const auto spec = getSpec(d); - auto status = getStatus(d); - - status &= ~QDateTimePrivate::ValidityMask; - switch (spec) { - case Qt::UTC: - status = status - | QDateTimePrivate::ValidDate - | QDateTimePrivate::ValidTime - | QDateTimePrivate::ValidDateTime; - break; - case Qt::OffsetFromUTC: - msecs = msecs + (d->m_offsetFromUtc * 1000); - status = status - | QDateTimePrivate::ValidDate - | QDateTimePrivate::ValidTime - | QDateTimePrivate::ValidDateTime; - break; - case Qt::TimeZone: - Q_ASSERT(!d.isShort()); -#if QT_CONFIG(timezone) - // Docs state any LocalTime before 1970-01-01 will *not* have any DST applied - // but all affected times afterwards will have DST applied. - d.detach(); - if (msecs >= 0) { - status = mergeDaylightStatus(status, - d->m_timeZone.d->isDaylightTime(msecs) - ? QDateTimePrivate::DaylightTime - : QDateTimePrivate::StandardTime); - d->m_offsetFromUtc = d->m_timeZone.d->offsetFromUtc(msecs); - } else { - status = mergeDaylightStatus(status, QDateTimePrivate::StandardTime); - d->m_offsetFromUtc = d->m_timeZone.d->standardTimeOffset(msecs); - } - msecs = msecs + (d->m_offsetFromUtc * 1000); - status = status - | QDateTimePrivate::ValidDate - | QDateTimePrivate::ValidTime - | QDateTimePrivate::ValidDateTime; -#endif // timezone - break; - case Qt::LocalTime: { - QDate dt; - QTime tm; - QDateTimePrivate::DaylightStatus dstStatus; - epochMSecsToLocalTime(msecs, &dt, &tm, &dstStatus); - setDateTime(d, dt, tm); - msecs = getMSecs(d); - status = mergeDaylightStatus(getStatus(d), dstStatus); - break; - } - } - - if (msecsCanBeSmall(msecs) && d.isShort()) { - // we can keep short - d.data.msecs = qintptr(msecs); - d.data.status = status; - } else { - d.detach(); - d->m_status = status & ~QDateTimePrivate::ShortData; - d->m_msecs = msecs; - } - - if (spec == Qt::LocalTime || spec == Qt::TimeZone) - refreshDateTime(d); -} - -/*! - \since 5.8 - - Sets the date and time given the number of seconds \a secs that have - passed since 1970-01-01T00:00:00.000, Coordinated Universal Time - (Qt::UTC). On systems that do not support time zones this function - will behave as if local time were Qt::UTC. - - \sa toSecsSinceEpoch(), setMSecsSinceEpoch() -*/ -void QDateTime::setSecsSinceEpoch(qint64 secs) -{ - setMSecsSinceEpoch(secs * 1000); -} - -#if QT_DEPRECATED_SINCE(5, 8) -/*! - \fn void QDateTime::setTime_t(uint seconds) - \deprecated - - Sets the date and time given the number of \a seconds that have - passed since 1970-01-01T00:00:00, Coordinated Universal Time - (Qt::UTC). On systems that do not support time zones this function - will behave as if local time were Qt::UTC. - - \note This function is deprecated. For new code, use setSecsSinceEpoch(). - - \sa toTime_t() -*/ - -void QDateTime::setTime_t(uint secsSince1Jan1970UTC) -{ - setMSecsSinceEpoch((qint64)secsSince1Jan1970UTC * 1000); -} -#endif - -#if QT_CONFIG(datestring) -/*! - \fn QString QDateTime::toString(Qt::DateFormat format) const - - \overload - - Returns the datetime as a string in the \a format given. - - If the \a format is Qt::TextDate, the string is formatted in - the default way. QDate::shortDayName(), QDate::shortMonthName(), - and QTime::toString() are used to generate the string, so the - day and month names will be localized names using the system locale, - i.e. QLocale::system(). An example of this formatting is - "Wed May 20 03:40:13 1998". - - If the \a format is Qt::ISODate, the string format corresponds - to the ISO 8601 extended specification for representations of - dates and times, taking the form yyyy-MM-ddTHH:mm:ss[Z|[+|-]HH:mm], - depending on the timeSpec() of the QDateTime. If the timeSpec() - is Qt::UTC, Z will be appended to the string; if the timeSpec() is - Qt::OffsetFromUTC, the offset in hours and minutes from UTC will - be appended to the string. To include milliseconds in the ISO 8601 - date, use the \a format Qt::ISODateWithMs, which corresponds to - yyyy-MM-ddTHH:mm:ss.zzz[Z|[+|-]HH:mm]. - - If the \a format is Qt::SystemLocaleShortDate or - Qt::SystemLocaleLongDate, the string format depends on the locale - settings of the system. Identical to calling - QLocale::system().toString(datetime, QLocale::ShortFormat) or - QLocale::system().toString(datetime, QLocale::LongFormat). - - If the \a format is Qt::DefaultLocaleShortDate or - Qt::DefaultLocaleLongDate, the string format depends on the - default application locale. This is the locale set with - QLocale::setDefault(), or the system locale if no default locale - has been set. Identical to calling QLocale().toString(datetime, - QLocale::ShortFormat) or QLocale().toString(datetime, - QLocale::LongFormat). - - If the \a format is Qt::RFC2822Date, the string is formatted - following \l{RFC 2822}. - - If the datetime is invalid, an empty string will be returned. - - \warning The Qt::ISODate format is only valid for years in the - range 0 to 9999. This restriction may apply to locale-aware - formats as well, depending on the locale settings. - - \sa fromString(), QDate::toString(), QTime::toString(), - QLocale::toString() -*/ - -QString QDateTime::toString(Qt::DateFormat format) const -{ - QString buf; - if (!isValid()) - return buf; - - switch (format) { - case Qt::SystemLocaleDate: - case Qt::SystemLocaleShortDate: - return QLocale::system().toString(*this, QLocale::ShortFormat); - case Qt::SystemLocaleLongDate: - return QLocale::system().toString(*this, QLocale::LongFormat); - case Qt::LocaleDate: - case Qt::DefaultLocaleShortDate: - return QLocale().toString(*this, QLocale::ShortFormat); - case Qt::DefaultLocaleLongDate: - return QLocale().toString(*this, QLocale::LongFormat); - case Qt::RFC2822Date: { - buf = QLocale::c().toString(*this, QStringViewLiteral("dd MMM yyyy hh:mm:ss ")); - buf += toOffsetString(Qt::TextDate, offsetFromUtc()); - return buf; - } - default: -#if QT_CONFIG(textdate) - case Qt::TextDate: { - const QPair<QDate, QTime> p = getDateTime(d); - buf = p.first.toString(Qt::TextDate); - // Insert time between date's day and year: - buf.insert(buf.lastIndexOf(QLatin1Char(' ')), - QLatin1Char(' ') + p.second.toString(Qt::TextDate)); - // Append zone/offset indicator, as appropriate: - switch (timeSpec()) { - case Qt::LocalTime: - break; -# if QT_CONFIG(timezone) - case Qt::TimeZone: - buf += QLatin1Char(' ') + d->m_timeZone.abbreviation(*this); - break; -# endif - default: - buf += QLatin1String(" GMT"); - if (getSpec(d) == Qt::OffsetFromUTC) - buf += toOffsetString(Qt::TextDate, offsetFromUtc()); - } - return buf; - } -#endif - case Qt::ISODate: - case Qt::ISODateWithMs: { - const QPair<QDate, QTime> p = getDateTime(d); - const QDate &dt = p.first; - const QTime &tm = p.second; - buf = dt.toString(Qt::ISODate); - if (buf.isEmpty()) - return QString(); // failed to convert - buf += QLatin1Char('T'); - buf += tm.toString(format); - switch (getSpec(d)) { - case Qt::UTC: - buf += QLatin1Char('Z'); - break; - case Qt::OffsetFromUTC: -#if QT_CONFIG(timezone) - case Qt::TimeZone: -#endif - buf += toOffsetString(Qt::ISODate, offsetFromUtc()); - break; - default: - break; - } - return buf; - } - } -} - -/*! - \fn QString QDateTime::toString(const QString &format) const - \fn QString QDateTime::toString(QStringView format) const - - Returns the datetime as a string. The \a format parameter - determines the format of the result string. - - These expressions may be used for the date: - - \table - \header \li Expression \li Output - \row \li d \li the day as number without a leading zero (1 to 31) - \row \li dd \li the day as number with a leading zero (01 to 31) - \row \li ddd - \li the abbreviated localized day name (e.g. 'Mon' to 'Sun'). - Uses the system locale to localize the name, i.e. QLocale::system(). - \row \li dddd - \li the long localized day name (e.g. 'Monday' to 'Sunday'). - Uses the system locale to localize the name, i.e. QLocale::system(). - \row \li M \li the month as number without a leading zero (1-12) - \row \li MM \li the month as number with a leading zero (01-12) - \row \li MMM - \li the abbreviated localized month name (e.g. 'Jan' to 'Dec'). - Uses the system locale to localize the name, i.e. QLocale::system(). - \row \li MMMM - \li the long localized month name (e.g. 'January' to 'December'). - Uses the system locale to localize the name, i.e. QLocale::system(). - \row \li yy \li the year as two digit number (00-99) - \row \li yyyy \li the year as four digit number - \endtable - - These expressions may be used for the time: - - \table - \header \li Expression \li Output - \row \li h - \li the hour without a leading zero (0 to 23 or 1 to 12 if AM/PM display) - \row \li hh - \li the hour with a leading zero (00 to 23 or 01 to 12 if AM/PM display) - \row \li H - \li the hour without a leading zero (0 to 23, even with AM/PM display) - \row \li HH - \li the hour with a leading zero (00 to 23, even with AM/PM display) - \row \li m \li the minute without a leading zero (0 to 59) - \row \li mm \li the minute with a leading zero (00 to 59) - \row \li s \li the whole second without a leading zero (0 to 59) - \row \li ss \li the whole second with a leading zero where applicable (00 to 59) - \row \li z \li the fractional part of the second, to go after a decimal - point, without trailing zeroes (0 to 999). Thus "\c{s.z}" - reports the seconds to full available (millisecond) precision - without trailing zeroes. - \row \li zzz \li the fractional part of the second, to millisecond - precision, including trailing zeroes where applicable (000 to 999). - \row \li AP or A - \li use AM/PM display. \e A/AP will be replaced by either "AM" or "PM". - \row \li ap or a - \li use am/pm display. \e a/ap will be replaced by either "am" or "pm". - \row \li t \li the timezone (for example "CEST") - \endtable - - Any sequence of characters enclosed in single quotes will be included - verbatim in the output string (stripped of the quotes), even if it contains - formatting characters. Two consecutive single quotes ("''") are replaced by - a single quote in the output. All other characters in the format string are - included verbatim in the output string. - - Formats without separators (e.g. "ddMM") are supported but must be used with - care, as the resulting strings aren't always reliably readable (e.g. if "dM" - produces "212" it could mean either the 2nd of December or the 21st of - February). - - Example format strings (assumed that the QDateTime is 21 May 2001 - 14:13:09.120): - - \table - \header \li Format \li Result - \row \li dd.MM.yyyy \li 21.05.2001 - \row \li ddd MMMM d yy \li Tue May 21 01 - \row \li hh:mm:ss.zzz \li 14:13:09.120 - \row \li hh:mm:ss.z \li 14:13:09.12 - \row \li h:m:s ap \li 2:13:9 pm - \endtable - - If the datetime is invalid, an empty string will be returned. - - \sa fromString(), QDate::toString(), QTime::toString(), QLocale::toString() -*/ -QString QDateTime::toString(QStringView format) const -{ - return QLocale::system().toString(*this, format); // QLocale::c() ### Qt6 -} - -#if QT_STRINGVIEW_LEVEL < 2 -QString QDateTime::toString(const QString &format) const -{ - return toString(qToStringViewIgnoringNull(format)); -} -#endif - -#endif // datestring - -static inline void massageAdjustedDateTime(const QDateTimeData &d, QDate *date, QTime *time) -{ - /* - If we have just adjusted to a day with a DST transition, our given time - may lie in the transition hour (either missing or duplicated). For any - other time, telling mktime (deep in the bowels of localMSecsToEpochMSecs) - we don't know its DST-ness will produce no adjustment (just a decision as - to its DST-ness); but for a time in spring's missing hour it'll adjust the - time while picking a DST-ness. (Handling of autumn is trickier, as either - DST-ness is valid, without adjusting the time. We might want to propagate - the daylight status in that case, but it's hard to do so without breaking - (far more common) other cases; and it makes little difference, as the two - answers do then differ only in DST-ness.) - */ - auto spec = getSpec(d); - if (spec == Qt::LocalTime) { - QDateTimePrivate::DaylightStatus status = QDateTimePrivate::UnknownDaylightTime; - localMSecsToEpochMSecs(timeToMSecs(*date, *time), &status, date, time); -#if QT_CONFIG(timezone) - } else if (spec == Qt::TimeZone) { - QDateTimePrivate::zoneMSecsToEpochMSecs(timeToMSecs(*date, *time), - d->m_timeZone, - QDateTimePrivate::UnknownDaylightTime, - date, time); -#endif // timezone - } -} - -/*! - Returns a QDateTime object containing a datetime \a ndays days - later than the datetime of this object (or earlier if \a ndays is - negative). - - If the timeSpec() is Qt::LocalTime and the resulting - date and time fall in the Standard Time to Daylight-Saving Time transition - hour then the result will be adjusted accordingly, i.e. if the transition - is at 2am and the clock goes forward to 3am and the result falls between - 2am and 3am then the result will be adjusted to fall after 3am. - - \sa daysTo(), addMonths(), addYears(), addSecs() -*/ - -QDateTime QDateTime::addDays(qint64 ndays) const -{ - QDateTime dt(*this); - QPair<QDate, QTime> p = getDateTime(d); - QDate &date = p.first; - QTime &time = p.second; - date = date.addDays(ndays); - massageAdjustedDateTime(dt.d, &date, &time); - setDateTime(dt.d, date, time); - return dt; -} - -/*! - Returns a QDateTime object containing a datetime \a nmonths months - later than the datetime of this object (or earlier if \a nmonths - is negative). - - If the timeSpec() is Qt::LocalTime and the resulting - date and time fall in the Standard Time to Daylight-Saving Time transition - hour then the result will be adjusted accordingly, i.e. if the transition - is at 2am and the clock goes forward to 3am and the result falls between - 2am and 3am then the result will be adjusted to fall after 3am. - - \sa daysTo(), addDays(), addYears(), addSecs() -*/ - -QDateTime QDateTime::addMonths(int nmonths) const -{ - QDateTime dt(*this); - QPair<QDate, QTime> p = getDateTime(d); - QDate &date = p.first; - QTime &time = p.second; - date = date.addMonths(nmonths); - massageAdjustedDateTime(dt.d, &date, &time); - setDateTime(dt.d, date, time); - return dt; -} - -/*! - Returns a QDateTime object containing a datetime \a nyears years - later than the datetime of this object (or earlier if \a nyears is - negative). - - If the timeSpec() is Qt::LocalTime and the resulting - date and time fall in the Standard Time to Daylight-Saving Time transition - hour then the result will be adjusted accordingly, i.e. if the transition - is at 2am and the clock goes forward to 3am and the result falls between - 2am and 3am then the result will be adjusted to fall after 3am. - - \sa daysTo(), addDays(), addMonths(), addSecs() -*/ - -QDateTime QDateTime::addYears(int nyears) const -{ - QDateTime dt(*this); - QPair<QDate, QTime> p = getDateTime(d); - QDate &date = p.first; - QTime &time = p.second; - date = date.addYears(nyears); - massageAdjustedDateTime(dt.d, &date, &time); - setDateTime(dt.d, date, time); - return dt; -} - -/*! - Returns a QDateTime object containing a datetime \a s seconds - later than the datetime of this object (or earlier if \a s is - negative). - - If this datetime is invalid, an invalid datetime will be returned. - - \sa addMSecs(), secsTo(), addDays(), addMonths(), addYears() -*/ - -QDateTime QDateTime::addSecs(qint64 s) const -{ - return addMSecs(s * 1000); -} - -/*! - Returns a QDateTime object containing a datetime \a msecs miliseconds - later than the datetime of this object (or earlier if \a msecs is - negative). - - If this datetime is invalid, an invalid datetime will be returned. - - \sa addSecs(), msecsTo(), addDays(), addMonths(), addYears() -*/ -QDateTime QDateTime::addMSecs(qint64 msecs) const -{ - if (!isValid()) - return QDateTime(); - - QDateTime dt(*this); - auto spec = getSpec(d); - if (spec == Qt::LocalTime || spec == Qt::TimeZone) { - // Convert to real UTC first in case crosses DST transition - dt.setMSecsSinceEpoch(toMSecsSinceEpoch() + msecs); - } else { - // No need to convert, just add on - if (d.isShort()) { - // need to check if we need to enlarge first - msecs += dt.d.data.msecs; - if (msecsCanBeSmall(msecs)) { - dt.d.data.msecs = qintptr(msecs); - } else { - dt.d.detach(); - dt.d->m_msecs = msecs; - } - } else { - dt.d.detach(); - dt.d->m_msecs += msecs; - } - } - return dt; -} - -/*! - Returns the number of days from this datetime to the \a other - datetime. The number of days is counted as the number of times - midnight is reached between this datetime to the \a other - datetime. This means that a 10 minute difference from 23:55 to - 0:05 the next day counts as one day. - - If the \a other datetime is earlier than this datetime, - the value returned is negative. - - Example: - \snippet code/src_corelib_tools_qdatetime.cpp 15 - - \sa addDays(), secsTo(), msecsTo() -*/ - -qint64 QDateTime::daysTo(const QDateTime &other) const -{ - return date().daysTo(other.date()); -} - -/*! - Returns the number of seconds from this datetime to the \a other - datetime. If the \a other datetime is earlier than this datetime, - the value returned is negative. - - Before performing the comparison, the two datetimes are converted - to Qt::UTC to ensure that the result is correct if daylight-saving - (DST) applies to one of the two datetimes but not the other. - - Returns 0 if either datetime is invalid. - - Example: - \snippet code/src_corelib_tools_qdatetime.cpp 11 - - \sa addSecs(), daysTo(), QTime::secsTo() -*/ - -qint64 QDateTime::secsTo(const QDateTime &other) const -{ - return (msecsTo(other) / 1000); -} - -/*! - Returns the number of milliseconds from this datetime to the \a other - datetime. If the \a other datetime is earlier than this datetime, - the value returned is negative. - - Before performing the comparison, the two datetimes are converted - to Qt::UTC to ensure that the result is correct if daylight-saving - (DST) applies to one of the two datetimes and but not the other. - - Returns 0 if either datetime is invalid. - - \sa addMSecs(), daysTo(), QTime::msecsTo() -*/ - -qint64 QDateTime::msecsTo(const QDateTime &other) const -{ - if (!isValid() || !other.isValid()) - return 0; - - return other.toMSecsSinceEpoch() - toMSecsSinceEpoch(); -} - -/*! - \fn QDateTime QDateTime::toTimeSpec(Qt::TimeSpec spec) const - - Returns a copy of this datetime converted to the given time - \a spec. - - If \a spec is Qt::OffsetFromUTC then it is set to Qt::UTC. To set to a - spec of Qt::OffsetFromUTC use toOffsetFromUtc(). - - If \a spec is Qt::TimeZone then it is set to Qt::LocalTime, - i.e. the local Time Zone. - - Example: - \snippet code/src_corelib_tools_qdatetime.cpp 16 - - \sa timeSpec(), toTimeZone(), toUTC(), toLocalTime() -*/ - -QDateTime QDateTime::toTimeSpec(Qt::TimeSpec spec) const -{ - if (getSpec(d) == spec && (spec == Qt::UTC || spec == Qt::LocalTime)) - return *this; - - if (!isValid()) { - QDateTime ret = *this; - ret.setTimeSpec(spec); - return ret; - } - - return fromMSecsSinceEpoch(toMSecsSinceEpoch(), spec, 0); -} - -/*! - \since 5.2 - - \fn QDateTime QDateTime::toOffsetFromUtc(int offsetSeconds) const - - Returns a copy of this datetime converted to a spec of Qt::OffsetFromUTC - with the given \a offsetSeconds. - - If the \a offsetSeconds equals 0 then a UTC datetime will be returned - - \sa setOffsetFromUtc(), offsetFromUtc(), toTimeSpec() -*/ - -QDateTime QDateTime::toOffsetFromUtc(int offsetSeconds) const -{ - if (getSpec(d) == Qt::OffsetFromUTC - && d->m_offsetFromUtc == offsetSeconds) - return *this; - - if (!isValid()) { - QDateTime ret = *this; - ret.setOffsetFromUtc(offsetSeconds); - return ret; - } - - return fromMSecsSinceEpoch(toMSecsSinceEpoch(), Qt::OffsetFromUTC, offsetSeconds); -} - -#if QT_CONFIG(timezone) -/*! - \since 5.2 - - Returns a copy of this datetime converted to the given \a timeZone - - \sa timeZone(), toTimeSpec() -*/ - -QDateTime QDateTime::toTimeZone(const QTimeZone &timeZone) const -{ - if (getSpec(d) == Qt::TimeZone && d->m_timeZone == timeZone) - return *this; - - if (!isValid()) { - QDateTime ret = *this; - ret.setTimeZone(timeZone); - return ret; - } - - return fromMSecsSinceEpoch(toMSecsSinceEpoch(), timeZone); -} -#endif // timezone - -/*! - Returns \c true if this datetime is equal to the \a other datetime; - otherwise returns \c false. - - \sa operator!=() -*/ - -bool QDateTime::operator==(const QDateTime &other) const -{ - if (getSpec(d) == Qt::LocalTime - && getStatus(d) == getStatus(other.d)) { - return getMSecs(d) == getMSecs(other.d); - } - // Convert to UTC and compare - return (toMSecsSinceEpoch() == other.toMSecsSinceEpoch()); -} - -/*! - \fn bool QDateTime::operator!=(const QDateTime &other) const - - Returns \c true if this datetime is different from the \a other - datetime; otherwise returns \c false. - - Two datetimes are different if either the date, the time, or the - time zone components are different. - - \sa operator==() -*/ - -/*! - Returns \c true if this datetime is earlier than the \a other - datetime; otherwise returns \c false. -*/ - -bool QDateTime::operator<(const QDateTime &other) const -{ - if (getSpec(d) == Qt::LocalTime - && getStatus(d) == getStatus(other.d)) { - return getMSecs(d) < getMSecs(other.d); - } - // Convert to UTC and compare - return (toMSecsSinceEpoch() < other.toMSecsSinceEpoch()); -} - -/*! - \fn bool QDateTime::operator<=(const QDateTime &other) const - - Returns \c true if this datetime is earlier than or equal to the - \a other datetime; otherwise returns \c false. -*/ - -/*! - \fn bool QDateTime::operator>(const QDateTime &other) const - - Returns \c true if this datetime is later than the \a other datetime; - otherwise returns \c false. -*/ - -/*! - \fn bool QDateTime::operator>=(const QDateTime &other) const - - Returns \c true if this datetime is later than or equal to the - \a other datetime; otherwise returns \c false. -*/ - -/*! - \fn QDateTime QDateTime::currentDateTime() - Returns the current datetime, as reported by the system clock, in - the local time zone. - - \sa currentDateTimeUtc(), QDate::currentDate(), QTime::currentTime(), toTimeSpec() -*/ - -/*! - \fn QDateTime QDateTime::currentDateTimeUtc() - \since 4.7 - Returns the current datetime, as reported by the system clock, in - UTC. - - \sa currentDateTime(), QDate::currentDate(), QTime::currentTime(), toTimeSpec() -*/ - -/*! - \fn qint64 QDateTime::currentMSecsSinceEpoch() - \since 4.7 - - Returns the number of milliseconds since 1970-01-01T00:00:00 Universal - Coordinated Time. This number is like the POSIX time_t variable, but - expressed in milliseconds instead. - - \sa currentDateTime(), currentDateTimeUtc(), toTime_t(), toTimeSpec() -*/ - -/*! - \fn qint64 QDateTime::currentSecsSinceEpoch() - \since 5.8 - - Returns the number of seconds since 1970-01-01T00:00:00 Universal - Coordinated Time. - - \sa currentMSecsSinceEpoch() -*/ - -#if defined(Q_OS_WIN) -static inline uint msecsFromDecomposed(int hour, int minute, int sec, int msec = 0) -{ - return MSECS_PER_HOUR * hour + MSECS_PER_MIN * minute + 1000 * sec + msec; -} - -QDate QDate::currentDate() -{ - QDate d; - SYSTEMTIME st; - memset(&st, 0, sizeof(SYSTEMTIME)); - GetLocalTime(&st); - d.jd = julianDayFromDate(st.wYear, st.wMonth, st.wDay); - return d; -} - -QTime QTime::currentTime() -{ - QTime ct; - SYSTEMTIME st; - memset(&st, 0, sizeof(SYSTEMTIME)); - GetLocalTime(&st); - ct.setHMS(st.wHour, st.wMinute, st.wSecond, st.wMilliseconds); - return ct; -} - -QDateTime QDateTime::currentDateTime() -{ - QDate d; - QTime t; - SYSTEMTIME st; - memset(&st, 0, sizeof(SYSTEMTIME)); - GetLocalTime(&st); - d.jd = julianDayFromDate(st.wYear, st.wMonth, st.wDay); - t.mds = msecsFromDecomposed(st.wHour, st.wMinute, st.wSecond, st.wMilliseconds); - return QDateTime(d, t); -} - -QDateTime QDateTime::currentDateTimeUtc() -{ - QDate d; - QTime t; - SYSTEMTIME st; - memset(&st, 0, sizeof(SYSTEMTIME)); - GetSystemTime(&st); - d.jd = julianDayFromDate(st.wYear, st.wMonth, st.wDay); - t.mds = msecsFromDecomposed(st.wHour, st.wMinute, st.wSecond, st.wMilliseconds); - return QDateTime(d, t, Qt::UTC); -} - -qint64 QDateTime::currentMSecsSinceEpoch() noexcept -{ - SYSTEMTIME st; - memset(&st, 0, sizeof(SYSTEMTIME)); - GetSystemTime(&st); - - return msecsFromDecomposed(st.wHour, st.wMinute, st.wSecond, st.wMilliseconds) + - qint64(julianDayFromDate(st.wYear, st.wMonth, st.wDay) - - julianDayFromDate(1970, 1, 1)) * Q_INT64_C(86400000); -} - -qint64 QDateTime::currentSecsSinceEpoch() noexcept -{ - SYSTEMTIME st; - memset(&st, 0, sizeof(SYSTEMTIME)); - GetSystemTime(&st); - - return st.wHour * SECS_PER_HOUR + st.wMinute * SECS_PER_MIN + st.wSecond + - qint64(julianDayFromDate(st.wYear, st.wMonth, st.wDay) - - julianDayFromDate(1970, 1, 1)) * Q_INT64_C(86400); -} - -#elif defined(Q_OS_UNIX) -QDate QDate::currentDate() -{ - return QDateTime::currentDateTime().date(); -} - -QTime QTime::currentTime() -{ - return QDateTime::currentDateTime().time(); -} - -QDateTime QDateTime::currentDateTime() -{ - return fromMSecsSinceEpoch(currentMSecsSinceEpoch(), Qt::LocalTime); -} - -QDateTime QDateTime::currentDateTimeUtc() -{ - return fromMSecsSinceEpoch(currentMSecsSinceEpoch(), Qt::UTC); -} - -qint64 QDateTime::currentMSecsSinceEpoch() noexcept -{ - // posix compliant system - // we have milliseconds - struct timeval tv; - gettimeofday(&tv, 0); - return qint64(tv.tv_sec) * Q_INT64_C(1000) + tv.tv_usec / 1000; -} - -qint64 QDateTime::currentSecsSinceEpoch() noexcept -{ - struct timeval tv; - gettimeofday(&tv, 0); - return qint64(tv.tv_sec); -} -#else -#error "What system is this?" -#endif - -#if QT_DEPRECATED_SINCE(5, 8) -/*! - \since 4.2 - \deprecated - - Returns a datetime whose date and time are the number of \a seconds - that have passed since 1970-01-01T00:00:00, Coordinated Universal - Time (Qt::UTC) and converted to Qt::LocalTime. On systems that do not - support time zones, the time will be set as if local time were Qt::UTC. - - \note This function is deprecated. Please use fromSecsSinceEpoch() in new - code. - - \sa toTime_t(), setTime_t() -*/ -QDateTime QDateTime::fromTime_t(uint seconds) -{ - return fromMSecsSinceEpoch((qint64)seconds * 1000, Qt::LocalTime); -} - -/*! - \since 5.2 - \deprecated - - Returns a datetime whose date and time are the number of \a seconds - that have passed since 1970-01-01T00:00:00, Coordinated Universal - Time (Qt::UTC) and converted to the given \a spec. - - If the \a spec is not Qt::OffsetFromUTC then the \a offsetSeconds will be - ignored. If the \a spec is Qt::OffsetFromUTC and the \a offsetSeconds is 0 - then the spec will be set to Qt::UTC, i.e. an offset of 0 seconds. - - \note This function is deprecated. Please use fromSecsSinceEpoch() in new - code. - - \sa toTime_t(), setTime_t() -*/ -QDateTime QDateTime::fromTime_t(uint seconds, Qt::TimeSpec spec, int offsetSeconds) -{ - return fromMSecsSinceEpoch((qint64)seconds * 1000, spec, offsetSeconds); -} - -#if QT_CONFIG(timezone) -/*! - \since 5.2 - \deprecated - - Returns a datetime whose date and time are the number of \a seconds - that have passed since 1970-01-01T00:00:00, Coordinated Universal - Time (Qt::UTC) and with the given \a timeZone. - - \note This function is deprecated. Please use fromSecsSinceEpoch() in new - code. - - \sa toTime_t(), setTime_t() -*/ -QDateTime QDateTime::fromTime_t(uint seconds, const QTimeZone &timeZone) -{ - return fromMSecsSinceEpoch((qint64)seconds * 1000, timeZone); -} -#endif -#endif // QT_DEPRECATED_SINCE(5, 8) - -/*! - \since 4.7 - - Returns a datetime whose date and time are the number of milliseconds, \a msecs, - that have passed since 1970-01-01T00:00:00.000, Coordinated Universal - Time (Qt::UTC), and converted to Qt::LocalTime. On systems that do not - support time zones, the time will be set as if local time were Qt::UTC. - - Note that there are possible values for \a msecs that lie outside the valid - range of QDateTime, both negative and positive. The behavior of this - function is undefined for those values. - - \sa toMSecsSinceEpoch(), setMSecsSinceEpoch() -*/ -QDateTime QDateTime::fromMSecsSinceEpoch(qint64 msecs) -{ - return fromMSecsSinceEpoch(msecs, Qt::LocalTime); -} - -/*! - \since 5.2 - - Returns a datetime whose date and time are the number of milliseconds \a msecs - that have passed since 1970-01-01T00:00:00.000, Coordinated Universal - Time (Qt::UTC) and converted to the given \a spec. - - Note that there are possible values for \a msecs that lie outside the valid - range of QDateTime, both negative and positive. The behavior of this - function is undefined for those values. - - If the \a spec is not Qt::OffsetFromUTC then the \a offsetSeconds will be - ignored. If the \a spec is Qt::OffsetFromUTC and the \a offsetSeconds is 0 - then the spec will be set to Qt::UTC, i.e. an offset of 0 seconds. - - If \a spec is Qt::TimeZone then the spec will be set to Qt::LocalTime, - i.e. the current system time zone. - - \sa toMSecsSinceEpoch(), setMSecsSinceEpoch() -*/ -QDateTime QDateTime::fromMSecsSinceEpoch(qint64 msecs, Qt::TimeSpec spec, int offsetSeconds) -{ - QDateTime dt; - QT_PREPEND_NAMESPACE(setTimeSpec(dt.d, spec, offsetSeconds)); - dt.setMSecsSinceEpoch(msecs); - return dt; -} - -/*! - \since 5.8 - - Returns a datetime whose date and time are the number of seconds \a secs - that have passed since 1970-01-01T00:00:00.000, Coordinated Universal - Time (Qt::UTC) and converted to the given \a spec. - - Note that there are possible values for \a secs that lie outside the valid - range of QDateTime, both negative and positive. The behavior of this - function is undefined for those values. - - If the \a spec is not Qt::OffsetFromUTC then the \a offsetSeconds will be - ignored. If the \a spec is Qt::OffsetFromUTC and the \a offsetSeconds is 0 - then the spec will be set to Qt::UTC, i.e. an offset of 0 seconds. - - If \a spec is Qt::TimeZone then the spec will be set to Qt::LocalTime, - i.e. the current system time zone. - - \sa toSecsSinceEpoch(), setSecsSinceEpoch() -*/ -QDateTime QDateTime::fromSecsSinceEpoch(qint64 secs, Qt::TimeSpec spec, int offsetSeconds) -{ - return fromMSecsSinceEpoch(secs * 1000, spec, offsetSeconds); -} - -#if QT_CONFIG(timezone) -/*! - \since 5.2 - - Returns a datetime whose date and time are the number of milliseconds \a msecs - that have passed since 1970-01-01T00:00:00.000, Coordinated Universal - Time (Qt::UTC) and with the given \a timeZone. - - \sa fromSecsSinceEpoch() -*/ -QDateTime QDateTime::fromMSecsSinceEpoch(qint64 msecs, const QTimeZone &timeZone) -{ - QDateTime dt; - dt.setTimeZone(timeZone); - dt.setMSecsSinceEpoch(msecs); - return dt; -} - -/*! - \since 5.8 - - Returns a datetime whose date and time are the number of seconds \a secs - that have passed since 1970-01-01T00:00:00.000, Coordinated Universal - Time (Qt::UTC) and with the given \a timeZone. - - \sa fromMSecsSinceEpoch() -*/ -QDateTime QDateTime::fromSecsSinceEpoch(qint64 secs, const QTimeZone &timeZone) -{ - return fromMSecsSinceEpoch(secs * 1000, timeZone); -} -#endif - -#if QT_DEPRECATED_SINCE(5, 2) -/*! - \since 4.4 - \internal - \obsolete - - This method was added in 4.4 but never documented as public. It was replaced - in 5.2 with public method setOffsetFromUtc() for consistency with QTimeZone. - - This method should never be made public. - - \sa setOffsetFromUtc() - */ -void QDateTime::setUtcOffset(int seconds) -{ - setOffsetFromUtc(seconds); -} - -/*! - \since 4.4 - \internal - \obsolete - - This method was added in 4.4 but never documented as public. It was replaced - in 5.1 with public method offsetFromUTC() for consistency with QTimeZone. - - This method should never be made public. - - \sa offsetFromUTC() -*/ -int QDateTime::utcOffset() const -{ - return offsetFromUtc(); -} -#endif // QT_DEPRECATED_SINCE - -#if QT_CONFIG(datestring) - -/*! - Returns the QDateTime represented by the \a string, using the - \a format given, or an invalid datetime if this is not possible. - - Note for Qt::TextDate: It is recommended that you use the - English short month names (e.g. "Jan"). Although localized month - names can also be used, they depend on the user's locale settings. - - \sa toString(), QLocale::toDateTime() -*/ -QDateTime QDateTime::fromString(const QString &string, Qt::DateFormat format) -{ - if (string.isEmpty()) - return QDateTime(); - - switch (format) { - case Qt::SystemLocaleDate: - case Qt::SystemLocaleShortDate: - return QLocale::system().toDateTime(string, QLocale::ShortFormat); - case Qt::SystemLocaleLongDate: - return QLocale::system().toDateTime(string, QLocale::LongFormat); - case Qt::LocaleDate: - case Qt::DefaultLocaleShortDate: - return QLocale().toDateTime(string, QLocale::ShortFormat); - case Qt::DefaultLocaleLongDate: - return QLocale().toDateTime(string, QLocale::LongFormat); - case Qt::RFC2822Date: { - const ParsedRfcDateTime rfc = rfcDateImpl(string); - - if (!rfc.date.isValid() || !rfc.time.isValid()) - return QDateTime(); - - QDateTime dateTime(rfc.date, rfc.time, Qt::UTC); - dateTime.setOffsetFromUtc(rfc.utcOffset); - return dateTime; - } - case Qt::ISODate: - case Qt::ISODateWithMs: { - const int size = string.size(); - if (size < 10) - return QDateTime(); - - QDate date = QDate::fromString(string.left(10), Qt::ISODate); - if (!date.isValid()) - return QDateTime(); - if (size == 10) - return QDateTime(date); - - Qt::TimeSpec spec = Qt::LocalTime; - QStringRef isoString(&string); - isoString = isoString.mid(10); // trim "yyyy-MM-dd" - - // Must be left with T and at least one digit for the hour: - if (isoString.size() < 2 - || !(isoString.startsWith(QLatin1Char('T')) - // FIXME: QSql relies on QVariant::toDateTime() accepting a space here: - || isoString.startsWith(QLatin1Char(' ')))) { - return QDateTime(); - } - isoString = isoString.mid(1); // trim 'T' (or space) - - int offset = 0; - // Check end of string for Time Zone definition, either Z for UTC or [+-]HH:mm for Offset - if (isoString.endsWith(QLatin1Char('Z'))) { - spec = Qt::UTC; - isoString.chop(1); // trim 'Z' - } else { - // the loop below is faster but functionally equal to: - // const int signIndex = isoString.indexOf(QRegExp(QStringLiteral("[+-]"))); - int signIndex = isoString.size() - 1; - Q_ASSERT(signIndex >= 0); - bool found = false; - { - const QChar plus = QLatin1Char('+'); - const QChar minus = QLatin1Char('-'); - do { - QChar character(isoString.at(signIndex)); - found = character == plus || character == minus; - } while (!found && --signIndex >= 0); - } - - if (found) { - bool ok; - offset = fromOffsetString(isoString.mid(signIndex), &ok); - if (!ok) - return QDateTime(); - isoString = isoString.left(signIndex); - spec = Qt::OffsetFromUTC; - } - } - - // Might be end of day (24:00, including variants), which QTime considers invalid. - // ISO 8601 (section 4.2.3) says that 24:00 is equivalent to 00:00 the next day. - bool isMidnight24 = false; - QTime time = fromIsoTimeString(isoString, format, &isMidnight24); - if (!time.isValid()) - return QDateTime(); - if (isMidnight24) - date = date.addDays(1); - return QDateTime(date, time, spec, offset); - } -#if QT_CONFIG(textdate) - case Qt::TextDate: { - QVector<QStringRef> parts = string.splitRef(QLatin1Char(' '), QString::SkipEmptyParts); - - if ((parts.count() < 5) || (parts.count() > 6)) - return QDateTime(); - - // Accept "Sun Dec 1 13:02:00 1974" and "Sun 1. Dec 13:02:00 1974" - int month = 0; - int day = 0; - bool ok = false; - - // First try month then day - month = fromShortMonthName(parts.at(1)); - if (month) - day = parts.at(2).toInt(); - - // If failed try day then month - if (!month || !day) { - month = fromShortMonthName(parts.at(2)); - if (month) { - QStringRef dayStr = parts.at(1); - if (dayStr.endsWith(QLatin1Char('.'))) { - dayStr = dayStr.left(dayStr.size() - 1); - day = dayStr.toInt(); - } - } - } - - // If both failed, give up - if (!month || !day) - return QDateTime(); - - // Year can be before or after time, "Sun Dec 1 1974 13:02:00" or "Sun Dec 1 13:02:00 1974" - // Guess which by looking for ':' in the time - int year = 0; - int yearPart = 0; - int timePart = 0; - if (parts.at(3).contains(QLatin1Char(':'))) { - yearPart = 4; - timePart = 3; - } else if (parts.at(4).contains(QLatin1Char(':'))) { - yearPart = 3; - timePart = 4; - } else { - return QDateTime(); - } - - year = parts.at(yearPart).toInt(&ok); - if (!ok) - return QDateTime(); - - QDate date(year, month, day); - if (!date.isValid()) - return QDateTime(); - - QVector<QStringRef> timeParts = parts.at(timePart).split(QLatin1Char(':')); - if (timeParts.count() < 2 || timeParts.count() > 3) - return QDateTime(); - - int hour = timeParts.at(0).toInt(&ok); - if (!ok) - return QDateTime(); - - int minute = timeParts.at(1).toInt(&ok); - if (!ok) - return QDateTime(); - - int second = 0; - int millisecond = 0; - if (timeParts.count() > 2) { - const QVector<QStringRef> secondParts = timeParts.at(2).split(QLatin1Char('.')); - if (secondParts.size() > 2) { - return QDateTime(); - } - - second = secondParts.first().toInt(&ok); - if (!ok) { - return QDateTime(); - } - - if (secondParts.size() > 1) { - millisecond = secondParts.last().toInt(&ok); - if (!ok) { - return QDateTime(); - } - } - } - - QTime time(hour, minute, second, millisecond); - if (!time.isValid()) - return QDateTime(); - - if (parts.count() == 5) - return QDateTime(date, time, Qt::LocalTime); - - QStringRef tz = parts.at(5); - if (!tz.startsWith(QLatin1String("GMT"), Qt::CaseInsensitive)) - return QDateTime(); - tz = tz.mid(3); - if (!tz.isEmpty()) { - int offset = fromOffsetString(tz, &ok); - if (!ok) - return QDateTime(); - return QDateTime(date, time, Qt::OffsetFromUTC, offset); - } else { - return QDateTime(date, time, Qt::UTC); - } - } -#endif // textdate - } - - return QDateTime(); -} - -/*! - Returns the QDateTime represented by the \a string, using the \a - format given, or an invalid datetime if the string cannot be parsed. - - These expressions may be used for the date part of the format string: - - \table - \header \li Expression \li Output - \row \li d \li the day as number without a leading zero (1 to 31) - \row \li dd \li the day as number with a leading zero (01 to 31) - \row \li ddd - \li the abbreviated localized day name (e.g. 'Mon' to 'Sun'). - Uses QDate::shortDayName(). - \row \li dddd - \li the long localized day name (e.g. 'Monday' to 'Sunday'). - Uses QDate::longDayName(). - \row \li M \li the month as number without a leading zero (1-12) - \row \li MM \li the month as number with a leading zero (01-12) - \row \li MMM - \li the abbreviated localized month name (e.g. 'Jan' to 'Dec'). - Uses QDate::shortMonthName(). - \row \li MMMM - \li the long localized month name (e.g. 'January' to 'December'). - Uses QDate::longMonthName(). - \row \li yy \li the year as two digit number (00-99) - \row \li yyyy \li the year as four digit number - \endtable - - \note Unlike the other version of this function, day and month names must - be given in the user's local language. It is only possible to use the English - names if the user's language is English. - - These expressions may be used for the time part of the format string: - - \table - \header \li Expression \li Output - \row \li h - \li the hour without a leading zero (0 to 23 or 1 to 12 if AM/PM display) - \row \li hh - \li the hour with a leading zero (00 to 23 or 01 to 12 if AM/PM display) - \row \li H - \li the hour without a leading zero (0 to 23, even with AM/PM display) - \row \li HH - \li the hour with a leading zero (00 to 23, even with AM/PM display) - \row \li m \li the minute without a leading zero (0 to 59) - \row \li mm \li the minute with a leading zero (00 to 59) - \row \li s \li the whole second without a leading zero (0 to 59) - \row \li ss \li the whole second with a leading zero where applicable (00 to 59) - \row \li z \li the fractional part of the second, to go after a decimal - point, without trailing zeroes (0 to 999). Thus "\c{s.z}" - reports the seconds to full available (millisecond) precision - without trailing zeroes. - \row \li zzz \li the fractional part of the second, to millisecond - precision, including trailing zeroes where applicable (000 to 999). - \row \li AP or A - \li interpret as an AM/PM time. \e AP must be either "AM" or "PM". - \row \li ap or a - \li Interpret as an AM/PM time. \e ap must be either "am" or "pm". - \endtable - - All other input characters will be treated as text. Any sequence - of characters that are enclosed in single quotes will also be - treated as text and not be used as an expression. - - \snippet code/src_corelib_tools_qdatetime.cpp 12 - - If the format is not satisfied, an invalid QDateTime is returned. - The expressions that don't have leading zeroes (d, M, h, m, s, z) will be - greedy. This means that they will use two digits even if this will - put them outside the range and/or leave too few digits for other - sections. - - \snippet code/src_corelib_tools_qdatetime.cpp 13 - - This could have meant 1 January 00:30.00 but the M will grab - two digits. - - Incorrectly specified fields of the \a string will cause an invalid - QDateTime to be returned. For example, consider the following code, - where the two digit year 12 is read as 1912 (see the table below for all - field defaults); the resulting datetime is invalid because 23 April 1912 - was a Tuesday, not a Monday: - - \snippet code/src_corelib_tools_qdatetime.cpp 20 - - The correct code is: - - \snippet code/src_corelib_tools_qdatetime.cpp 21 - - For any field that is not represented in the format, the following - defaults are used: - - \table - \header \li Field \li Default value - \row \li Year \li 1900 - \row \li Month \li 1 (January) - \row \li Day \li 1 - \row \li Hour \li 0 - \row \li Minute \li 0 - \row \li Second \li 0 - \endtable - - For example: - - \snippet code/src_corelib_tools_qdatetime.cpp 14 - - \sa toString(), QDate::fromString(), QTime::fromString(), - QLocale::toDateTime() -*/ - -QDateTime QDateTime::fromString(const QString &string, const QString &format) -{ -#if QT_CONFIG(datetimeparser) - QTime time; - QDate date; - - QDateTimeParser dt(QVariant::DateTime, QDateTimeParser::FromString); - // dt.setDefaultLocale(QLocale::c()); ### Qt 6 - if (dt.parseFormat(format) && dt.fromString(string, &date, &time)) - return QDateTime(date, time); -#else - Q_UNUSED(string); - Q_UNUSED(format); -#endif - return QDateTime(); -} - -#endif // datestring -/*! - \fn QDateTime QDateTime::toLocalTime() const - - Returns a datetime containing the date and time information in - this datetime, but specified using the Qt::LocalTime definition. - - Example: - - \snippet code/src_corelib_tools_qdatetime.cpp 17 - - \sa toTimeSpec() -*/ - -/*! - \fn QDateTime QDateTime::toUTC() const - - Returns a datetime containing the date and time information in - this datetime, but specified using the Qt::UTC definition. - - Example: - - \snippet code/src_corelib_tools_qdatetime.cpp 18 - - \sa toTimeSpec() -*/ - -/***************************************************************************** - Date/time stream functions - *****************************************************************************/ - -#ifndef QT_NO_DATASTREAM -/*! - \relates QDate - - Writes the \a date to stream \a out. - - \sa {Serializing Qt Data Types} -*/ - -QDataStream &operator<<(QDataStream &out, const QDate &date) -{ - if (out.version() < QDataStream::Qt_5_0) - return out << quint32(date.jd); - else - return out << qint64(date.jd); -} - -/*! - \relates QDate - - Reads a date from stream \a in into the \a date. - - \sa {Serializing Qt Data Types} -*/ - -QDataStream &operator>>(QDataStream &in, QDate &date) -{ - if (in.version() < QDataStream::Qt_5_0) { - quint32 jd; - in >> jd; - // Older versions consider 0 an invalid jd. - date.jd = (jd != 0 ? jd : QDate::nullJd()); - } else { - qint64 jd; - in >> jd; - date.jd = jd; - } - - return in; -} - -/*! - \relates QTime - - Writes \a time to stream \a out. - - \sa {Serializing Qt Data Types} -*/ - -QDataStream &operator<<(QDataStream &out, const QTime &time) -{ - if (out.version() >= QDataStream::Qt_4_0) { - return out << quint32(time.mds); - } else { - // Qt3 had no support for reading -1, QTime() was valid and serialized as 0 - return out << quint32(time.isNull() ? 0 : time.mds); - } -} - -/*! - \relates QTime - - Reads a time from stream \a in into the given \a time. - - \sa {Serializing Qt Data Types} -*/ - -QDataStream &operator>>(QDataStream &in, QTime &time) -{ - quint32 ds; - in >> ds; - if (in.version() >= QDataStream::Qt_4_0) { - time.mds = int(ds); - } else { - // Qt3 would write 0 for a null time - time.mds = (ds == 0) ? QTime::NullTime : int(ds); - } - return in; -} - -/*! - \relates QDateTime - - Writes \a dateTime to the \a out stream. - - \sa {Serializing Qt Data Types} -*/ -QDataStream &operator<<(QDataStream &out, const QDateTime &dateTime) -{ - QPair<QDate, QTime> dateAndTime; - - if (out.version() >= QDataStream::Qt_5_2) { - - // In 5.2 we switched to using Qt::TimeSpec and added offset support - dateAndTime = getDateTime(dateTime.d); - out << dateAndTime << qint8(dateTime.timeSpec()); - if (dateTime.timeSpec() == Qt::OffsetFromUTC) - out << qint32(dateTime.offsetFromUtc()); -#if QT_CONFIG(timezone) - else if (dateTime.timeSpec() == Qt::TimeZone) - out << dateTime.timeZone(); -#endif // timezone - - } else if (out.version() == QDataStream::Qt_5_0) { - - // In Qt 5.0 we incorrectly serialised all datetimes as UTC. - // This approach is wrong and should not be used again; it breaks - // the guarantee that a deserialised local datetime is the same time - // of day, regardless of which timezone it was serialised in. - dateAndTime = getDateTime((dateTime.isValid() ? dateTime.toUTC() : dateTime).d); - out << dateAndTime << qint8(dateTime.timeSpec()); - - } else if (out.version() >= QDataStream::Qt_4_0) { - - // From 4.0 to 5.1 (except 5.0) we used QDateTimePrivate::Spec - dateAndTime = getDateTime(dateTime.d); - out << dateAndTime; - switch (dateTime.timeSpec()) { - case Qt::UTC: - out << (qint8)QDateTimePrivate::UTC; - break; - case Qt::OffsetFromUTC: - out << (qint8)QDateTimePrivate::OffsetFromUTC; - break; - case Qt::TimeZone: - out << (qint8)QDateTimePrivate::TimeZone; - break; - case Qt::LocalTime: - out << (qint8)QDateTimePrivate::LocalUnknown; - break; - } - - } else { // version < QDataStream::Qt_4_0 - - // Before 4.0 there was no TimeSpec, only Qt::LocalTime was supported - dateAndTime = getDateTime(dateTime.d); - out << dateAndTime; - - } - - return out; -} - -/*! - \relates QDateTime - - Reads a datetime from the stream \a in into \a dateTime. - - \sa {Serializing Qt Data Types} -*/ - -QDataStream &operator>>(QDataStream &in, QDateTime &dateTime) -{ - QDate dt; - QTime tm; - qint8 ts = 0; - Qt::TimeSpec spec = Qt::LocalTime; - qint32 offset = 0; -#if QT_CONFIG(timezone) - QTimeZone tz; -#endif // timezone - - if (in.version() >= QDataStream::Qt_5_2) { - - // In 5.2 we switched to using Qt::TimeSpec and added offset support - in >> dt >> tm >> ts; - spec = static_cast<Qt::TimeSpec>(ts); - if (spec == Qt::OffsetFromUTC) { - in >> offset; - dateTime = QDateTime(dt, tm, spec, offset); -#if QT_CONFIG(timezone) - } else if (spec == Qt::TimeZone) { - in >> tz; - dateTime = QDateTime(dt, tm, tz); -#endif // timezone - } else { - dateTime = QDateTime(dt, tm, spec); - } - - } else if (in.version() == QDataStream::Qt_5_0) { - - // In Qt 5.0 we incorrectly serialised all datetimes as UTC - in >> dt >> tm >> ts; - spec = static_cast<Qt::TimeSpec>(ts); - dateTime = QDateTime(dt, tm, Qt::UTC); - dateTime = dateTime.toTimeSpec(spec); - - } else if (in.version() >= QDataStream::Qt_4_0) { - - // From 4.0 to 5.1 (except 5.0) we used QDateTimePrivate::Spec - in >> dt >> tm >> ts; - switch ((QDateTimePrivate::Spec)ts) { - case QDateTimePrivate::UTC: - spec = Qt::UTC; - break; - case QDateTimePrivate::OffsetFromUTC: - spec = Qt::OffsetFromUTC; - break; - case QDateTimePrivate::TimeZone: - spec = Qt::TimeZone; -#if QT_CONFIG(timezone) - // FIXME: need to use a different constructor ! -#endif - break; - case QDateTimePrivate::LocalUnknown: - case QDateTimePrivate::LocalStandard: - case QDateTimePrivate::LocalDST: - spec = Qt::LocalTime; - break; - } - dateTime = QDateTime(dt, tm, spec, offset); - - } else { // version < QDataStream::Qt_4_0 - - // Before 4.0 there was no TimeSpec, only Qt::LocalTime was supported - in >> dt >> tm; - dateTime = QDateTime(dt, tm, spec, offset); - - } - - return in; -} -#endif // QT_NO_DATASTREAM - -/***************************************************************************** - Date / Time Debug Streams -*****************************************************************************/ - -#if !defined(QT_NO_DEBUG_STREAM) && QT_CONFIG(datestring) -QDebug operator<<(QDebug dbg, const QDate &date) -{ - QDebugStateSaver saver(dbg); - dbg.nospace() << "QDate("; - if (date.isValid()) - dbg.nospace() << date.toString(Qt::ISODate); - else - dbg.nospace() << "Invalid"; - dbg.nospace() << ')'; - return dbg; -} - -QDebug operator<<(QDebug dbg, const QTime &time) -{ - QDebugStateSaver saver(dbg); - dbg.nospace() << "QTime("; - if (time.isValid()) - dbg.nospace() << time.toString(QStringViewLiteral("HH:mm:ss.zzz")); - else - dbg.nospace() << "Invalid"; - dbg.nospace() << ')'; - return dbg; -} - -QDebug operator<<(QDebug dbg, const QDateTime &date) -{ - QDebugStateSaver saver(dbg); - dbg.nospace() << "QDateTime("; - if (date.isValid()) { - const Qt::TimeSpec ts = date.timeSpec(); - dbg.noquote() << date.toString(QStringViewLiteral("yyyy-MM-dd HH:mm:ss.zzz t")) - << ' ' << ts; - switch (ts) { - case Qt::UTC: - break; - case Qt::OffsetFromUTC: - dbg.space() << date.offsetFromUtc() << 's'; - break; - case Qt::TimeZone: -#if QT_CONFIG(timezone) - dbg.space() << date.timeZone().id(); -#endif // timezone - break; - case Qt::LocalTime: - break; - } - } else { - dbg.nospace() << "Invalid"; - } - return dbg.nospace() << ')'; -} -#endif // debug_stream && datestring - -/*! \fn uint qHash(const QDateTime &key, uint seed = 0) - \relates QHash - \since 5.0 - - Returns the hash value for the \a key, using \a seed to seed the calculation. -*/ -uint qHash(const QDateTime &key, uint seed) -{ - // Use to toMSecsSinceEpoch instead of individual qHash functions for - // QDate/QTime/spec/offset because QDateTime::operator== converts both arguments - // to the same timezone. If we don't, qHash would return different hashes for - // two QDateTimes that are equivalent once converted to the same timezone. - return qHash(key.toMSecsSinceEpoch(), seed); -} - -/*! \fn uint qHash(const QDate &key, uint seed = 0) - \relates QHash - \since 5.0 - - Returns the hash value for the \a key, using \a seed to seed the calculation. -*/ -uint qHash(const QDate &key, uint seed) noexcept -{ - return qHash(key.toJulianDay(), seed); -} - -/*! \fn uint qHash(const QTime &key, uint seed = 0) - \relates QHash - \since 5.0 - - Returns the hash value for the \a key, using \a seed to seed the calculation. -*/ -uint qHash(const QTime &key, uint seed) noexcept -{ - return qHash(key.msecsSinceStartOfDay(), seed); -} - -QT_END_NAMESPACE diff --git a/src/corelib/tools/qdatetime.h b/src/corelib/tools/qdatetime.h deleted file mode 100644 index 3e3b953b52..0000000000 --- a/src/corelib/tools/qdatetime.h +++ /dev/null @@ -1,426 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2019 The Qt Company Ltd. -** Copyright (C) 2016 Intel Corporation. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtCore module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef QDATETIME_H -#define QDATETIME_H - -#include <QtCore/qstring.h> -#include <QtCore/qnamespace.h> -#include <QtCore/qshareddata.h> - -#include <limits> - -#if defined(Q_OS_DARWIN) || defined(Q_QDOC) -Q_FORWARD_DECLARE_CF_TYPE(CFDate); -Q_FORWARD_DECLARE_OBJC_CLASS(NSDate); -#endif - -QT_BEGIN_NAMESPACE - -class QTimeZone; -class QDateTime; - -class Q_CORE_EXPORT QDate -{ -public: - enum MonthNameType { // ### Qt 6: remove, along with methods using it - DateFormat = 0, - StandaloneFormat - }; -private: - explicit Q_DECL_CONSTEXPR QDate(qint64 julianDay) : jd(julianDay) {} -public: - Q_DECL_CONSTEXPR QDate() : jd(nullJd()) {} - QDate(int y, int m, int d); - - Q_DECL_CONSTEXPR bool isNull() const { return !isValid(); } - Q_DECL_CONSTEXPR bool isValid() const { return jd >= minJd() && jd <= maxJd(); } - - int year() const; - int month() const; - int day() const; - int dayOfWeek() const; - int dayOfYear() const; - int daysInMonth() const; - int daysInYear() const; - int weekNumber(int *yearNum = nullptr) const; - - QDateTime startOfDay(Qt::TimeSpec spec = Qt::LocalTime, int offsetSeconds = 0) const; - QDateTime endOfDay(Qt::TimeSpec spec = Qt::LocalTime, int offsetSeconds = 0) const; -#if QT_CONFIG(timezone) - QDateTime startOfDay(const QTimeZone &zone) const; - QDateTime endOfDay(const QTimeZone &zone) const; -#endif - -#if QT_DEPRECATED_SINCE(5, 10) && QT_CONFIG(textdate) - QT_DEPRECATED_X("Use QLocale::monthName or QLocale::standaloneMonthName") - static QString shortMonthName(int month, MonthNameType type = DateFormat); - QT_DEPRECATED_X("Use QLocale::dayName or QLocale::standaloneDayName") - static QString shortDayName(int weekday, MonthNameType type = DateFormat); - QT_DEPRECATED_X("Use QLocale::monthName or QLocale::standaloneMonthName") - static QString longMonthName(int month, MonthNameType type = DateFormat); - QT_DEPRECATED_X("Use QLocale::dayName or QLocale::standaloneDayName") - static QString longDayName(int weekday, MonthNameType type = DateFormat); -#endif // textdate && deprecated -#if QT_CONFIG(datestring) - QString toString(Qt::DateFormat f = Qt::TextDate) const; -#if QT_STRINGVIEW_LEVEL < 2 - QString toString(const QString &format) const; -#endif - QString toString(QStringView format) const; -#endif -#if QT_DEPRECATED_SINCE(5,0) - QT_DEPRECATED_X("Use setDate() instead") inline bool setYMD(int y, int m, int d) - { if (uint(y) <= 99) y += 1900; return setDate(y, m, d); } -#endif - - bool setDate(int year, int month, int day); - -#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0) - void getDate(int *year, int *month, int *day); // ### Qt 6: remove -#endif // < Qt 6 - void getDate(int *year, int *month, int *day) const; - - Q_REQUIRED_RESULT QDate addDays(qint64 days) const; - Q_REQUIRED_RESULT QDate addMonths(int months) const; - Q_REQUIRED_RESULT QDate addYears(int years) const; - qint64 daysTo(const QDate &) const; - - Q_DECL_CONSTEXPR bool operator==(const QDate &other) const { return jd == other.jd; } - Q_DECL_CONSTEXPR bool operator!=(const QDate &other) const { return jd != other.jd; } - Q_DECL_CONSTEXPR bool operator< (const QDate &other) const { return jd < other.jd; } - Q_DECL_CONSTEXPR bool operator<=(const QDate &other) const { return jd <= other.jd; } - Q_DECL_CONSTEXPR bool operator> (const QDate &other) const { return jd > other.jd; } - Q_DECL_CONSTEXPR bool operator>=(const QDate &other) const { return jd >= other.jd; } - - static QDate currentDate(); -#if QT_CONFIG(datestring) - static QDate fromString(const QString &s, Qt::DateFormat f = Qt::TextDate); - static QDate fromString(const QString &s, const QString &format); -#endif - static bool isValid(int y, int m, int d); - static bool isLeapYear(int year); - - static Q_DECL_CONSTEXPR inline QDate fromJulianDay(qint64 jd_) - { return jd_ >= minJd() && jd_ <= maxJd() ? QDate(jd_) : QDate() ; } - Q_DECL_CONSTEXPR inline qint64 toJulianDay() const { return jd; } - -private: - // using extra parentheses around min to avoid expanding it if it is a macro - static Q_DECL_CONSTEXPR inline qint64 nullJd() { return (std::numeric_limits<qint64>::min)(); } - static Q_DECL_CONSTEXPR inline qint64 minJd() { return Q_INT64_C(-784350574879); } - static Q_DECL_CONSTEXPR inline qint64 maxJd() { return Q_INT64_C( 784354017364); } - - qint64 jd; - - friend class QDateTime; - friend class QDateTimePrivate; -#ifndef QT_NO_DATASTREAM - friend Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QDate &); - friend Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QDate &); -#endif -}; -Q_DECLARE_TYPEINFO(QDate, Q_MOVABLE_TYPE); - -class Q_CORE_EXPORT QTime -{ - explicit Q_DECL_CONSTEXPR QTime(int ms) : mds(ms) - {} -public: - Q_DECL_CONSTEXPR QTime(): mds(NullTime) - {} - QTime(int h, int m, int s = 0, int ms = 0); - - Q_DECL_CONSTEXPR bool isNull() const { return mds == NullTime; } - bool isValid() const; - - int hour() const; - int minute() const; - int second() const; - int msec() const; -#if QT_CONFIG(datestring) - QString toString(Qt::DateFormat f = Qt::TextDate) const; -#if QT_STRINGVIEW_LEVEL < 2 - QString toString(const QString &format) const; -#endif - QString toString(QStringView format) const; -#endif - bool setHMS(int h, int m, int s, int ms = 0); - - Q_REQUIRED_RESULT QTime addSecs(int secs) const; - int secsTo(const QTime &) const; - Q_REQUIRED_RESULT QTime addMSecs(int ms) const; - int msecsTo(const QTime &) const; - - Q_DECL_CONSTEXPR bool operator==(const QTime &other) const { return mds == other.mds; } - Q_DECL_CONSTEXPR bool operator!=(const QTime &other) const { return mds != other.mds; } - Q_DECL_CONSTEXPR bool operator< (const QTime &other) const { return mds < other.mds; } - Q_DECL_CONSTEXPR bool operator<=(const QTime &other) const { return mds <= other.mds; } - Q_DECL_CONSTEXPR bool operator> (const QTime &other) const { return mds > other.mds; } - Q_DECL_CONSTEXPR bool operator>=(const QTime &other) const { return mds >= other.mds; } - - static Q_DECL_CONSTEXPR inline QTime fromMSecsSinceStartOfDay(int msecs) { return QTime(msecs); } - Q_DECL_CONSTEXPR inline int msecsSinceStartOfDay() const { return mds == NullTime ? 0 : mds; } - - static QTime currentTime(); -#if QT_CONFIG(datestring) - static QTime fromString(const QString &s, Qt::DateFormat f = Qt::TextDate); - static QTime fromString(const QString &s, const QString &format); -#endif - static bool isValid(int h, int m, int s, int ms = 0); - -#if QT_DEPRECATED_SINCE(5, 14) // ### Qt 6: remove - QT_DEPRECATED_X("Use QElapsedTimer instead") void start(); - QT_DEPRECATED_X("Use QElapsedTimer instead") int restart(); - QT_DEPRECATED_X("Use QElapsedTimer instead") int elapsed() const; -#endif -private: - enum TimeFlag { NullTime = -1 }; - Q_DECL_CONSTEXPR inline int ds() const { return mds == -1 ? 0 : mds; } - int mds; - - friend class QDateTime; - friend class QDateTimePrivate; -#ifndef QT_NO_DATASTREAM - friend Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QTime &); - friend Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QTime &); -#endif -}; -Q_DECLARE_TYPEINFO(QTime, Q_MOVABLE_TYPE); - -class QDateTimePrivate; - -class Q_CORE_EXPORT QDateTime -{ - // ### Qt 6: revisit the optimization - struct ShortData { -#if Q_BYTE_ORDER == Q_LITTLE_ENDIAN - quintptr status : 8; -#endif - // note: this is only 24 bits on 32-bit systems... - qintptr msecs : sizeof(void *) * 8 - 8; - -#if Q_BYTE_ORDER == Q_BIG_ENDIAN - quintptr status : 8; -#endif - }; - - union Data { - enum { - // To be of any use, we need at least 60 years around 1970, which - // is 1,893,456,000,000 ms. That requires 41 bits to store, plus - // the sign bit. With the status byte, the minimum size is 50 bits. - CanBeSmall = sizeof(ShortData) * 8 > 50 - }; - - Data(); - Data(Qt::TimeSpec); - Data(const Data &other); - Data(Data &&other); - Data &operator=(const Data &other); - ~Data(); - - bool isShort() const; - void detach(); - - const QDateTimePrivate *operator->() const; - QDateTimePrivate *operator->(); - - QDateTimePrivate *d; - ShortData data; - }; - -public: - QDateTime() noexcept(Data::CanBeSmall); - explicit QDateTime(const QDate &); - QDateTime(const QDate &, const QTime &, Qt::TimeSpec spec = Qt::LocalTime); - // ### Qt 6: Merge with above with default offsetSeconds = 0 - QDateTime(const QDate &date, const QTime &time, Qt::TimeSpec spec, int offsetSeconds); -#if QT_CONFIG(timezone) - QDateTime(const QDate &date, const QTime &time, const QTimeZone &timeZone); -#endif // timezone - QDateTime(const QDateTime &other) noexcept; - QDateTime(QDateTime &&other) noexcept; - ~QDateTime(); - - QDateTime &operator=(QDateTime &&other) noexcept { swap(other); return *this; } - QDateTime &operator=(const QDateTime &other) noexcept; - - void swap(QDateTime &other) noexcept { qSwap(d.d, other.d.d); } - - bool isNull() const; - bool isValid() const; - - QDate date() const; - QTime time() const; - Qt::TimeSpec timeSpec() const; - int offsetFromUtc() const; -#if QT_CONFIG(timezone) - QTimeZone timeZone() const; -#endif // timezone - QString timeZoneAbbreviation() const; - bool isDaylightTime() const; - - qint64 toMSecsSinceEpoch() const; - qint64 toSecsSinceEpoch() const; - - void setDate(const QDate &date); - void setTime(const QTime &time); - void setTimeSpec(Qt::TimeSpec spec); - void setOffsetFromUtc(int offsetSeconds); -#if QT_CONFIG(timezone) - void setTimeZone(const QTimeZone &toZone); -#endif // timezone - void setMSecsSinceEpoch(qint64 msecs); - void setSecsSinceEpoch(qint64 secs); - -#if QT_CONFIG(datestring) - QString toString(Qt::DateFormat f = Qt::TextDate) const; -#if QT_STRINGVIEW_LEVEL < 2 - QString toString(const QString &format) const; -#endif - QString toString(QStringView format) const; -#endif - Q_REQUIRED_RESULT QDateTime addDays(qint64 days) const; - Q_REQUIRED_RESULT QDateTime addMonths(int months) const; - Q_REQUIRED_RESULT QDateTime addYears(int years) const; - Q_REQUIRED_RESULT QDateTime addSecs(qint64 secs) const; - Q_REQUIRED_RESULT QDateTime addMSecs(qint64 msecs) const; - - QDateTime toTimeSpec(Qt::TimeSpec spec) const; - inline QDateTime toLocalTime() const { return toTimeSpec(Qt::LocalTime); } - inline QDateTime toUTC() const { return toTimeSpec(Qt::UTC); } - QDateTime toOffsetFromUtc(int offsetSeconds) const; -#if QT_CONFIG(timezone) - QDateTime toTimeZone(const QTimeZone &toZone) const; -#endif // timezone - - qint64 daysTo(const QDateTime &) const; - qint64 secsTo(const QDateTime &) const; - qint64 msecsTo(const QDateTime &) const; - - bool operator==(const QDateTime &other) const; - inline bool operator!=(const QDateTime &other) const { return !(*this == other); } - bool operator<(const QDateTime &other) const; - inline bool operator<=(const QDateTime &other) const { return !(other < *this); } - inline bool operator>(const QDateTime &other) const { return other < *this; } - inline bool operator>=(const QDateTime &other) const { return !(*this < other); } - -#if QT_DEPRECATED_SINCE(5, 2) // ### Qt 6: remove - QT_DEPRECATED_X("Use setOffsetFromUtc() instead") void setUtcOffset(int seconds); - QT_DEPRECATED_X("Use offsetFromUtc() instead") int utcOffset() const; -#endif // QT_DEPRECATED_SINCE - - static QDateTime currentDateTime(); - static QDateTime currentDateTimeUtc(); -#if QT_CONFIG(datestring) - static QDateTime fromString(const QString &s, Qt::DateFormat f = Qt::TextDate); - static QDateTime fromString(const QString &s, const QString &format); -#endif - -#if QT_DEPRECATED_SINCE(5, 8) - uint toTime_t() const; - void setTime_t(uint secsSince1Jan1970UTC); - static QDateTime fromTime_t(uint secsSince1Jan1970UTC); - static QDateTime fromTime_t(uint secsSince1Jan1970UTC, Qt::TimeSpec spec, - int offsetFromUtc = 0); - static QDateTime fromTime_t(uint secsSince1Jan1970UTC, const QTimeZone &timeZone); -#endif - - static QDateTime fromMSecsSinceEpoch(qint64 msecs); - // ### Qt 6: Merge with above with default spec = Qt::LocalTime - static QDateTime fromMSecsSinceEpoch(qint64 msecs, Qt::TimeSpec spec, int offsetFromUtc = 0); - static QDateTime fromSecsSinceEpoch(qint64 secs, Qt::TimeSpec spe = Qt::LocalTime, int offsetFromUtc = 0); - -#if QT_CONFIG(timezone) - static QDateTime fromMSecsSinceEpoch(qint64 msecs, const QTimeZone &timeZone); - static QDateTime fromSecsSinceEpoch(qint64 secs, const QTimeZone &timeZone); -#endif - - static qint64 currentMSecsSinceEpoch() noexcept; - static qint64 currentSecsSinceEpoch() noexcept; - -#if defined(Q_OS_DARWIN) || defined(Q_QDOC) - static QDateTime fromCFDate(CFDateRef date); - CFDateRef toCFDate() const Q_DECL_CF_RETURNS_RETAINED; - static QDateTime fromNSDate(const NSDate *date); - NSDate *toNSDate() const Q_DECL_NS_RETURNS_AUTORELEASED; -#endif - -private: - friend class QDateTimePrivate; - - Data d; - -#ifndef QT_NO_DATASTREAM - friend Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QDateTime &); - friend Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QDateTime &); -#endif - -#if !defined(QT_NO_DEBUG_STREAM) && QT_CONFIG(datestring) - friend Q_CORE_EXPORT QDebug operator<<(QDebug, const QDateTime &); -#endif -}; -Q_DECLARE_SHARED(QDateTime) - -#ifndef QT_NO_DATASTREAM -Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QDate &); -Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QDate &); -Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QTime &); -Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QTime &); -Q_CORE_EXPORT QDataStream &operator<<(QDataStream &, const QDateTime &); -Q_CORE_EXPORT QDataStream &operator>>(QDataStream &, QDateTime &); -#endif // QT_NO_DATASTREAM - -#if !defined(QT_NO_DEBUG_STREAM) && QT_CONFIG(datestring) -Q_CORE_EXPORT QDebug operator<<(QDebug, const QDate &); -Q_CORE_EXPORT QDebug operator<<(QDebug, const QTime &); -Q_CORE_EXPORT QDebug operator<<(QDebug, const QDateTime &); -#endif - -// QDateTime is not noexcept for now -- to be revised once -// timezone and calendaring support is added -Q_CORE_EXPORT uint qHash(const QDateTime &key, uint seed = 0); -Q_CORE_EXPORT uint qHash(const QDate &key, uint seed = 0) noexcept; -Q_CORE_EXPORT uint qHash(const QTime &key, uint seed = 0) noexcept; - -QT_END_NAMESPACE - -#endif // QDATETIME_H diff --git a/src/corelib/tools/qdatetime_p.h b/src/corelib/tools/qdatetime_p.h deleted file mode 100644 index 6018f8f7b0..0000000000 --- a/src/corelib/tools/qdatetime_p.h +++ /dev/null @@ -1,151 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Copyright (C) 2016 Intel Corporation. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtCore module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef QDATETIME_P_H -#define QDATETIME_P_H - -// -// W A R N I N G -// ------------- -// -// This file is not part of the Qt API. It exists purely as an -// implementation detail. This header file may change from version to -// version without notice, or even be removed. -// -// We mean it. -// - -#include <QtCore/private/qglobal_p.h> -#include "qplatformdefs.h" -#include "QtCore/qatomic.h" -#include "QtCore/qdatetime.h" -#include "QtCore/qpair.h" - -#if QT_CONFIG(timezone) -#include "qtimezone.h" -#endif - -QT_BEGIN_NAMESPACE - -class QDateTimePrivate -{ -public: - // forward the declarations from QDateTime (this makes them public) - typedef QDateTime::ShortData QDateTimeShortData; - typedef QDateTime::Data QDateTimeData; - - // Never change or delete this enum, it is required for backwards compatible - // serialization of QDateTime before 5.2, so is essentially public API - enum Spec { - LocalUnknown = -1, - LocalStandard = 0, - LocalDST = 1, - UTC = 2, - OffsetFromUTC = 3, - TimeZone = 4 - }; - - // Daylight Time Status - enum DaylightStatus { - UnknownDaylightTime = -1, - StandardTime = 0, - DaylightTime = 1 - }; - - // Status of date/time - enum StatusFlag { - ShortData = 0x01, - - ValidDate = 0x02, - ValidTime = 0x04, - ValidDateTime = 0x08, - - TimeSpecMask = 0x30, - - SetToStandardTime = 0x40, - SetToDaylightTime = 0x80 - }; - Q_DECLARE_FLAGS(StatusFlags, StatusFlag) - - enum { - TimeSpecShift = 4, - ValidityMask = ValidDate | ValidTime | ValidDateTime, - DaylightMask = SetToStandardTime | SetToDaylightTime - }; - - QDateTimePrivate() : m_msecs(0), - m_status(StatusFlag(Qt::LocalTime << TimeSpecShift)), - m_offsetFromUtc(0), - ref(0) - { - } - - static QDateTime::Data create(const QDate &toDate, const QTime &toTime, Qt::TimeSpec toSpec, - int offsetSeconds); - -#if QT_CONFIG(timezone) - static QDateTime::Data create(const QDate &toDate, const QTime &toTime, const QTimeZone & timeZone); -#endif // timezone - - qint64 m_msecs; - StatusFlags m_status; - int m_offsetFromUtc; - mutable QAtomicInt ref; -#if QT_CONFIG(timezone) - QTimeZone m_timeZone; -#endif // timezone - -#if QT_CONFIG(timezone) - static qint64 zoneMSecsToEpochMSecs(qint64 msecs, const QTimeZone &zone, - DaylightStatus hint = UnknownDaylightTime, - QDate *localDate = nullptr, QTime *localTime = nullptr); - - // Inlined for its one caller in qdatetime.cpp - inline void setUtcOffsetByTZ(qint64 atMSecsSinceEpoch); -#endif // timezone - - // ### Qt 5.14: expose publicly in QDateTime - // The first and last years of which QDateTime can represent some part: - enum class YearRange : qint32 { First = -292275056, Last = +292278994 }; -}; - -QT_END_NAMESPACE - -#endif // QDATETIME_P_H diff --git a/src/corelib/tools/qdatetimeparser.cpp b/src/corelib/tools/qdatetimeparser.cpp deleted file mode 100644 index 728b066db1..0000000000 --- a/src/corelib/tools/qdatetimeparser.cpp +++ /dev/null @@ -1,2047 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtCore module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qplatformdefs.h" -#include "private/qdatetimeparser_p.h" - -#include "qdatastream.h" -#include "qset.h" -#include "qlocale.h" -#include "qdatetime.h" -#if QT_CONFIG(timezone) -#include "qtimezone.h" -#endif -#include "qdebug.h" - -//#define QDATETIMEPARSER_DEBUG -#if defined (QDATETIMEPARSER_DEBUG) && !defined(QT_NO_DEBUG_STREAM) -# define QDTPDEBUG qDebug() -# define QDTPDEBUGN qDebug -#else -# define QDTPDEBUG if (false) qDebug() -# define QDTPDEBUGN if (false) qDebug -#endif - -QT_BEGIN_NAMESPACE - -QDateTimeParser::~QDateTimeParser() -{ -} - -/*! - \internal - Gets the digit from a datetime. E.g. - - QDateTime var(QDate(2004, 02, 02)); - int digit = getDigit(var, Year); - // digit = 2004 -*/ - -int QDateTimeParser::getDigit(const QDateTime &t, int index) const -{ - if (index < 0 || index >= sectionNodes.size()) { -#if QT_CONFIG(datestring) - qWarning("QDateTimeParser::getDigit() Internal error (%ls %d)", - qUtf16Printable(t.toString()), index); -#else - qWarning("QDateTimeParser::getDigit() Internal error (%d)", index); -#endif - return -1; - } - const SectionNode &node = sectionNodes.at(index); - switch (node.type) { - case TimeZoneSection: return t.offsetFromUtc(); - case Hour24Section: case Hour12Section: return t.time().hour(); - case MinuteSection: return t.time().minute(); - case SecondSection: return t.time().second(); - case MSecSection: return t.time().msec(); - case YearSection2Digits: - case YearSection: return t.date().year(); - case MonthSection: return t.date().month(); - case DaySection: return t.date().day(); - case DayOfWeekSectionShort: - case DayOfWeekSectionLong: return t.date().day(); - case AmPmSection: return t.time().hour() > 11 ? 1 : 0; - - default: break; - } - -#if QT_CONFIG(datestring) - qWarning("QDateTimeParser::getDigit() Internal error 2 (%ls %d)", - qUtf16Printable(t.toString()), index); -#else - qWarning("QDateTimeParser::getDigit() Internal error 2 (%d)", index); -#endif - return -1; -} - -/*! - \internal - Sets a digit in a datetime. E.g. - - QDateTime var(QDate(2004, 02, 02)); - int digit = getDigit(var, Year); - // digit = 2004 - setDigit(&var, Year, 2005); - digit = getDigit(var, Year); - // digit = 2005 -*/ - -bool QDateTimeParser::setDigit(QDateTime &v, int index, int newVal) const -{ - if (index < 0 || index >= sectionNodes.size()) { -#if QT_CONFIG(datestring) - qWarning("QDateTimeParser::setDigit() Internal error (%ls %d %d)", - qUtf16Printable(v.toString()), index, newVal); -#else - qWarning("QDateTimeParser::setDigit() Internal error (%d %d)", index, newVal); -#endif - return false; - } - const SectionNode &node = sectionNodes.at(index); - - const QDate date = v.date(); - const QTime time = v.time(); - int year = date.year(); - int month = date.month(); - int day = date.day(); - int hour = time.hour(); - int minute = time.minute(); - int second = time.second(); - int msec = time.msec(); - Qt::TimeSpec tspec = v.timeSpec(); - // Only offset from UTC is amenable to setting an int value: - int offset = tspec == Qt::OffsetFromUTC ? v.offsetFromUtc() : 0; - - switch (node.type) { - case Hour24Section: case Hour12Section: hour = newVal; break; - case MinuteSection: minute = newVal; break; - case SecondSection: second = newVal; break; - case MSecSection: msec = newVal; break; - case YearSection2Digits: - case YearSection: year = newVal; break; - case MonthSection: month = newVal; break; - case DaySection: - case DayOfWeekSectionShort: - case DayOfWeekSectionLong: - if (newVal > 31) { - // have to keep legacy behavior. setting the - // date to 32 should return false. Setting it - // to 31 for february should return true - return false; - } - day = newVal; - break; - case TimeZoneSection: - if (newVal < absoluteMin(index) || newVal > absoluteMax(index)) - return false; - tspec = Qt::OffsetFromUTC; - offset = newVal; - break; - case AmPmSection: hour = (newVal == 0 ? hour % 12 : (hour % 12) + 12); break; - default: - qWarning("QDateTimeParser::setDigit() Internal error (%ls)", - qUtf16Printable(node.name())); - break; - } - - if (!(node.type & DaySectionMask)) { - if (day < cachedDay) - day = cachedDay; - const int max = QDate(year, month, 1).daysInMonth(); - if (day > max) { - day = max; - } - } - - const QDate newDate(year, month, day); - const QTime newTime(hour, minute, second, msec); - if (!newDate.isValid() || !newTime.isValid()) - return false; - - // Preserve zone: - v = -#if QT_CONFIG(timezone) - tspec == Qt::TimeZone ? QDateTime(newDate, newTime, v.timeZone()) : -#endif - QDateTime(newDate, newTime, tspec, offset); - return true; -} - - - -/*! - \internal - - Returns the absolute maximum for a section -*/ - -int QDateTimeParser::absoluteMax(int s, const QDateTime &cur) const -{ - const SectionNode &sn = sectionNode(s); - switch (sn.type) { -#if QT_CONFIG(timezone) - case TimeZoneSection: return QTimeZone::MaxUtcOffsetSecs; -#endif - case Hour24Section: - case Hour12Section: return 23; // this is special-cased in - // parseSection. We want it to be - // 23 for the stepBy case. - case MinuteSection: - case SecondSection: return 59; - case MSecSection: return 999; - case YearSection2Digits: - case YearSection: return 9999; // sectionMaxSize will prevent - // people from typing in a larger - // number in count == 2 sections. - // stepBy() will work on real years anyway - case MonthSection: return 12; - case DaySection: - case DayOfWeekSectionShort: - case DayOfWeekSectionLong: return cur.isValid() ? cur.date().daysInMonth() : 31; - case AmPmSection: return 1; - default: break; - } - qWarning("QDateTimeParser::absoluteMax() Internal error (%ls)", - qUtf16Printable(sn.name())); - return -1; -} - -/*! - \internal - - Returns the absolute minimum for a section -*/ - -int QDateTimeParser::absoluteMin(int s) const -{ - const SectionNode &sn = sectionNode(s); - switch (sn.type) { -#if QT_CONFIG(timezone) - case TimeZoneSection: return QTimeZone::MinUtcOffsetSecs; -#endif - case Hour24Section: - case Hour12Section: - case MinuteSection: - case SecondSection: - case MSecSection: - case YearSection2Digits: - case YearSection: return 0; - case MonthSection: - case DaySection: - case DayOfWeekSectionShort: - case DayOfWeekSectionLong: return 1; - case AmPmSection: return 0; - default: break; - } - qWarning("QDateTimeParser::absoluteMin() Internal error (%ls, %0x)", - qUtf16Printable(sn.name()), sn.type); - return -1; -} - -/*! - \internal - - Returns the sectionNode for the Section \a s. -*/ - -const QDateTimeParser::SectionNode &QDateTimeParser::sectionNode(int sectionIndex) const -{ - if (sectionIndex < 0) { - switch (sectionIndex) { - case FirstSectionIndex: - return first; - case LastSectionIndex: - return last; - case NoSectionIndex: - return none; - } - } else if (sectionIndex < sectionNodes.size()) { - return sectionNodes.at(sectionIndex); - } - - qWarning("QDateTimeParser::sectionNode() Internal error (%d)", - sectionIndex); - return none; -} - -QDateTimeParser::Section QDateTimeParser::sectionType(int sectionIndex) const -{ - return sectionNode(sectionIndex).type; -} - - -/*! - \internal - - Returns the starting position for section \a s. -*/ - -int QDateTimeParser::sectionPos(int sectionIndex) const -{ - return sectionPos(sectionNode(sectionIndex)); -} - -int QDateTimeParser::sectionPos(const SectionNode &sn) const -{ - switch (sn.type) { - case FirstSection: return 0; - case LastSection: return displayText().size() - 1; - default: break; - } - if (sn.pos == -1) { - qWarning("QDateTimeParser::sectionPos Internal error (%ls)", qUtf16Printable(sn.name())); - return -1; - } - return sn.pos; -} - - -/*! - \internal - - helper function for parseFormat. removes quotes that are - not escaped and removes the escaping on those that are escaped - -*/ - -static QString unquote(const QStringRef &str) -{ - const QChar quote(QLatin1Char('\'')); - const QChar slash(QLatin1Char('\\')); - const QChar zero(QLatin1Char('0')); - QString ret; - QChar status(zero); - const int max = str.size(); - for (int i=0; i<max; ++i) { - if (str.at(i) == quote) { - if (status != quote) { - status = quote; - } else if (!ret.isEmpty() && str.at(i - 1) == slash) { - ret[ret.size() - 1] = quote; - } else { - status = zero; - } - } else { - ret += str.at(i); - } - } - return ret; -} -/*! - \internal - - Parses the format \a newFormat. If successful, returns \c true and - sets up the format. Else keeps the old format and returns \c false. - -*/ - -static inline int countRepeat(const QString &str, int index, int maxCount) -{ - int count = 1; - const QChar ch(str.at(index)); - const int max = qMin(index + maxCount, str.size()); - while (index + count < max && str.at(index + count) == ch) { - ++count; - } - return count; -} - -static inline void appendSeparator(QStringList *list, const QString &string, int from, int size, int lastQuote) -{ - const QStringRef separator = string.midRef(from, size); - list->append(lastQuote >= from ? unquote(separator) : separator.toString()); -} - - -bool QDateTimeParser::parseFormat(const QString &newFormat) -{ - const QLatin1Char quote('\''); - const QLatin1Char slash('\\'); - const QLatin1Char zero('0'); - if (newFormat == displayFormat && !newFormat.isEmpty()) { - return true; - } - - QDTPDEBUGN("parseFormat: %s", newFormat.toLatin1().constData()); - - QVector<SectionNode> newSectionNodes; - Sections newDisplay = 0; - QStringList newSeparators; - int i, index = 0; - int add = 0; - QChar status(zero); - const int max = newFormat.size(); - int lastQuote = -1; - for (i = 0; i<max; ++i) { - if (newFormat.at(i) == quote) { - lastQuote = i; - ++add; - if (status != quote) { - status = quote; - } else if (i > 0 && newFormat.at(i - 1) != slash) { - status = zero; - } - } else if (status != quote) { - const char sect = newFormat.at(i).toLatin1(); - switch (sect) { - case 'H': - case 'h': - if (parserType != QVariant::Date) { - const Section hour = (sect == 'h') ? Hour12Section : Hour24Section; - const SectionNode sn = { hour, i - add, countRepeat(newFormat, i, 2), 0 }; - newSectionNodes.append(sn); - appendSeparator(&newSeparators, newFormat, index, i - index, lastQuote); - i += sn.count - 1; - index = i + 1; - newDisplay |= hour; - } - break; - case 'm': - if (parserType != QVariant::Date) { - const SectionNode sn = { MinuteSection, i - add, countRepeat(newFormat, i, 2), 0 }; - newSectionNodes.append(sn); - appendSeparator(&newSeparators, newFormat, index, i - index, lastQuote); - i += sn.count - 1; - index = i + 1; - newDisplay |= MinuteSection; - } - break; - case 's': - if (parserType != QVariant::Date) { - const SectionNode sn = { SecondSection, i - add, countRepeat(newFormat, i, 2), 0 }; - newSectionNodes.append(sn); - appendSeparator(&newSeparators, newFormat, index, i - index, lastQuote); - i += sn.count - 1; - index = i + 1; - newDisplay |= SecondSection; - } - break; - - case 'z': - if (parserType != QVariant::Date) { - const SectionNode sn = { MSecSection, i - add, countRepeat(newFormat, i, 3) < 3 ? 1 : 3, 0 }; - newSectionNodes.append(sn); - appendSeparator(&newSeparators, newFormat, index, i - index, lastQuote); - i += sn.count - 1; - index = i + 1; - newDisplay |= MSecSection; - } - break; - case 'A': - case 'a': - if (parserType != QVariant::Date) { - const bool cap = (sect == 'A'); - const SectionNode sn = { AmPmSection, i - add, (cap ? 1 : 0), 0 }; - newSectionNodes.append(sn); - appendSeparator(&newSeparators, newFormat, index, i - index, lastQuote); - newDisplay |= AmPmSection; - if (i + 1 < newFormat.size() - && newFormat.at(i+1) == (cap ? QLatin1Char('P') : QLatin1Char('p'))) { - ++i; - } - index = i + 1; - } - break; - case 'y': - if (parserType != QVariant::Time) { - const int repeat = countRepeat(newFormat, i, 4); - if (repeat >= 2) { - const SectionNode sn = { repeat == 4 ? YearSection : YearSection2Digits, - i - add, repeat == 4 ? 4 : 2, 0 }; - newSectionNodes.append(sn); - appendSeparator(&newSeparators, newFormat, index, i - index, lastQuote); - i += sn.count - 1; - index = i + 1; - newDisplay |= sn.type; - } - } - break; - case 'M': - if (parserType != QVariant::Time) { - const SectionNode sn = { MonthSection, i - add, countRepeat(newFormat, i, 4), 0 }; - newSectionNodes.append(sn); - newSeparators.append(unquote(newFormat.midRef(index, i - index))); - i += sn.count - 1; - index = i + 1; - newDisplay |= MonthSection; - } - break; - case 'd': - if (parserType != QVariant::Time) { - const int repeat = countRepeat(newFormat, i, 4); - const Section sectionType = (repeat == 4 ? DayOfWeekSectionLong - : (repeat == 3 ? DayOfWeekSectionShort : DaySection)); - const SectionNode sn = { sectionType, i - add, repeat, 0 }; - newSectionNodes.append(sn); - appendSeparator(&newSeparators, newFormat, index, i - index, lastQuote); - i += sn.count - 1; - index = i + 1; - newDisplay |= sn.type; - } - break; - case 't': - if (parserType != QVariant::Time) { - const SectionNode sn = { TimeZoneSection, i - add, countRepeat(newFormat, i, 4), 0 }; - newSectionNodes.append(sn); - appendSeparator(&newSeparators, newFormat, index, i - index, lastQuote); - i += sn.count - 1; - index = i + 1; - newDisplay |= TimeZoneSection; - } - break; - default: - break; - } - } - } - if (newSectionNodes.isEmpty() && context == DateTimeEdit) { - return false; - } - - if ((newDisplay & (AmPmSection|Hour12Section)) == Hour12Section) { - const int count = newSectionNodes.size(); - for (int i = 0; i < count; ++i) { - SectionNode &node = newSectionNodes[i]; - if (node.type == Hour12Section) - node.type = Hour24Section; - } - } - - if (index < max) { - appendSeparator(&newSeparators, newFormat, index, index - max, lastQuote); - } else { - newSeparators.append(QString()); - } - - displayFormat = newFormat; - separators = newSeparators; - sectionNodes = newSectionNodes; - display = newDisplay; - last.pos = -1; - -// for (int i=0; i<sectionNodes.size(); ++i) { -// QDTPDEBUG << sectionNodes.at(i).name() << sectionNodes.at(i).count; -// } - - QDTPDEBUG << newFormat << displayFormat; - QDTPDEBUGN("separators:\n'%s'", separators.join(QLatin1String("\n")).toLatin1().constData()); - - return true; -} - -/*! - \internal - - Returns the size of section \a s. -*/ - -int QDateTimeParser::sectionSize(int sectionIndex) const -{ - if (sectionIndex < 0) - return 0; - - if (sectionIndex >= sectionNodes.size()) { - qWarning("QDateTimeParser::sectionSize Internal error (%d)", sectionIndex); - return -1; - } - - if (sectionIndex == sectionNodes.size() - 1) { - // In some cases there is a difference between displayText() and text. - // e.g. when text is 2000/01/31 and displayText() is "2000/2/31" - text - // is the previous value and displayText() is the new value. - // The size difference is always due to leading zeroes. - int sizeAdjustment = 0; - const int displayTextSize = displayText().size(); - if (displayTextSize != text.size()) { - // Any zeroes added before this section will affect our size. - int preceedingZeroesAdded = 0; - if (sectionNodes.size() > 1 && context == DateTimeEdit) { - const auto begin = sectionNodes.cbegin(); - const auto end = begin + sectionIndex; - for (auto sectionIt = begin; sectionIt != end; ++sectionIt) - preceedingZeroesAdded += sectionIt->zeroesAdded; - } - sizeAdjustment = preceedingZeroesAdded; - } - - return displayTextSize + sizeAdjustment - sectionPos(sectionIndex) - separators.last().size(); - } else { - return sectionPos(sectionIndex + 1) - sectionPos(sectionIndex) - - separators.at(sectionIndex + 1).size(); - } -} - - -int QDateTimeParser::sectionMaxSize(Section s, int count) const -{ -#if QT_CONFIG(textdate) - int mcount = 12; -#endif - - switch (s) { - case FirstSection: - case NoSection: - case LastSection: return 0; - - case AmPmSection: { - const int lowerMax = qMin(getAmPmText(AmText, LowerCase).size(), - getAmPmText(PmText, LowerCase).size()); - const int upperMax = qMin(getAmPmText(AmText, UpperCase).size(), - getAmPmText(PmText, UpperCase).size()); - return qMin(4, qMin(lowerMax, upperMax)); - } - - case Hour24Section: - case Hour12Section: - case MinuteSection: - case SecondSection: - case DaySection: return 2; - case DayOfWeekSectionShort: - case DayOfWeekSectionLong: -#if !QT_CONFIG(textdate) - return 2; -#else - mcount = 7; - Q_FALLTHROUGH(); -#endif - case MonthSection: -#if !QT_CONFIG(textdate) - return 2; -#else - if (count <= 2) - return 2; - - { - int ret = 0; - const QLocale l = locale(); - const QLocale::FormatType format = count == 4 ? QLocale::LongFormat : QLocale::ShortFormat; - for (int i=1; i<=mcount; ++i) { - const QString str = (s == MonthSection - ? l.monthName(i, format) - : l.dayName(i, format)); - ret = qMax(str.size(), ret); - } - return ret; - } -#endif - case MSecSection: return 3; - case YearSection: return 4; - case YearSection2Digits: return 2; - // Arbitrarily many tokens (each up to 14 bytes) joined with / separators: - case TimeZoneSection: return std::numeric_limits<int>::max(); - - case CalendarPopupSection: - case Internal: - case TimeSectionMask: - case DateSectionMask: - case HourSectionMask: - case YearSectionMask: - case DayOfWeekSectionMask: - case DaySectionMask: - qWarning("QDateTimeParser::sectionMaxSize: Invalid section %s", - SectionNode::name(s).toLatin1().constData()); - - case NoSectionIndex: - case FirstSectionIndex: - case LastSectionIndex: - case CalendarPopupIndex: - // these cases can't happen - break; - } - return -1; -} - - -int QDateTimeParser::sectionMaxSize(int index) const -{ - const SectionNode &sn = sectionNode(index); - return sectionMaxSize(sn.type, sn.count); -} - -/*! - \internal - - Returns the text of section \a s. This function operates on the - arg text rather than edit->text(). -*/ - - -QString QDateTimeParser::sectionText(const QString &text, int sectionIndex, int index) const -{ - const SectionNode &sn = sectionNode(sectionIndex); - switch (sn.type) { - case NoSectionIndex: - case FirstSectionIndex: - case LastSectionIndex: - return QString(); - default: break; - } - - return text.mid(index, sectionSize(sectionIndex)); -} - -QString QDateTimeParser::sectionText(int sectionIndex) const -{ - const SectionNode &sn = sectionNode(sectionIndex); - return sectionText(displayText(), sectionIndex, sn.pos); -} - - -#if QT_CONFIG(datestring) - -QDateTimeParser::ParsedSection -QDateTimeParser::parseSection(const QDateTime ¤tValue, int sectionIndex, - int offset, QString *text) const -{ - ParsedSection result; // initially Invalid - const SectionNode &sn = sectionNode(sectionIndex); - if (sn.type & Internal) { - qWarning("QDateTimeParser::parseSection Internal error (%ls %d)", - qUtf16Printable(sn.name()), sectionIndex); - return result; - } - - const int sectionmaxsize = sectionMaxSize(sectionIndex); - QStringRef sectionTextRef = text->midRef(offset, sectionmaxsize); - - QDTPDEBUG << "sectionValue for" << sn.name() - << "with text" << *text << "and (at" << offset - << ") st:" << sectionTextRef; - - switch (sn.type) { - case AmPmSection: { - QString sectiontext = sectionTextRef.toString(); - int used; - const int ampm = findAmPm(sectiontext, sectionIndex, &used); - switch (ampm) { - case AM: // sectiontext == AM - case PM: // sectiontext == PM - result = ParsedSection(Acceptable, ampm, used); - break; - case PossibleAM: // sectiontext => AM - case PossiblePM: // sectiontext => PM - result = ParsedSection(Intermediate, ampm - 2, used); - break; - case PossibleBoth: // sectiontext => AM|PM - result = ParsedSection(Intermediate, 0, used); - break; - case Neither: - QDTPDEBUG << "invalid because findAmPm(" << sectiontext << ") returned -1"; - break; - default: - QDTPDEBUGN("This should never happen (findAmPm returned %d)", ampm); - break; - } - if (result.state != Invalid) - text->replace(offset, used, sectiontext.constData(), used); - break; } - case TimeZoneSection: -#if QT_CONFIG(timezone) - result = findTimeZone(sectionTextRef, currentValue, - absoluteMax(sectionIndex), - absoluteMin(sectionIndex)); -#endif - break; - case MonthSection: - case DayOfWeekSectionShort: - case DayOfWeekSectionLong: - if (sn.count >= 3) { - QString sectiontext = sectionTextRef.toString(); - int num = 0, used = 0; - if (sn.type == MonthSection) { - const QDate minDate = getMinimum().date(); - const int min = (currentValue.date().year() == minDate.year()) - ? minDate.month() : 1; - num = findMonth(sectiontext.toLower(), min, sectionIndex, §iontext, &used); - } else { - num = findDay(sectiontext.toLower(), 1, sectionIndex, §iontext, &used); - } - - result = ParsedSection(Intermediate, num, used); - if (num != -1) { - text->replace(offset, used, sectiontext.constData(), used); - if (used == sectiontext.size()) - result = ParsedSection(Acceptable, num, used); - } - break; - } - Q_FALLTHROUGH(); - // All numeric: - case DaySection: - case YearSection: - case YearSection2Digits: - case Hour12Section: - case Hour24Section: - case MinuteSection: - case SecondSection: - case MSecSection: { - int sectiontextSize = sectionTextRef.size(); - if (sectiontextSize == 0) { - result = ParsedSection(Intermediate); - } else { - for (int i = 0; i < sectiontextSize; ++i) { - if (sectionTextRef.at(i).isSpace()) - sectiontextSize = i; // which exits the loop - } - - const int absMax = absoluteMax(sectionIndex); - QLocale loc; - bool ok = true; - int last = -1, used = -1; - - Q_ASSERT(sectiontextSize <= sectionmaxsize); - QStringRef digitsStr = sectionTextRef.left(sectiontextSize); - for (int digits = sectiontextSize; digits >= 1; --digits) { - digitsStr.truncate(digits); - int tmp = (int)loc.toUInt(digitsStr, &ok); - if (ok && sn.type == Hour12Section) { - if (tmp > 12) { - tmp = -1; - ok = false; - } else if (tmp == 12) { - tmp = 0; - } - } - if (ok && tmp <= absMax) { - QDTPDEBUG << sectionTextRef.left(digits) << tmp << digits; - last = tmp; - used = digits; - break; - } - } - - if (last == -1) { - QChar first(sectionTextRef.at(0)); - if (separators.at(sectionIndex + 1).startsWith(first)) - result = ParsedSection(Intermediate, 0, used); - else - QDTPDEBUG << "invalid because" << sectionTextRef << "can't become a uint" << last << ok; - } else { - const FieldInfo fi = fieldInfo(sectionIndex); - const bool unfilled = used < sectionmaxsize; - if (unfilled && fi & Fraction) { // typing 2 in a zzz field should be .200, not .002 - for (int i = used; i < sectionmaxsize; ++i) - last *= 10; - } - // Even those *= 10s can't take last above absMax: - Q_ASSERT(last <= absMax); - const int absMin = absoluteMin(sectionIndex); - if (last < absMin) { - if (unfilled) - result = ParsedSection(Intermediate, last, used); - else - QDTPDEBUG << "invalid because" << last << "is less than absoluteMin" << absMin; - } else if (unfilled && (fi & (FixedWidth|Numeric)) == (FixedWidth|Numeric)) { - if (skipToNextSection(sectionIndex, currentValue, digitsStr)) { - const int missingZeroes = sectionmaxsize - digitsStr.size(); - result = ParsedSection(Acceptable, last, sectionmaxsize, missingZeroes); - text->insert(offset, QString(missingZeroes, QLatin1Char('0'))); - ++(const_cast<QDateTimeParser*>(this)->sectionNodes[sectionIndex].zeroesAdded); - } else { - result = ParsedSection(Intermediate, last, used);; - } - } else { - result = ParsedSection(Acceptable, last, used); - } - } - } - break; } - default: - qWarning("QDateTimeParser::parseSection Internal error (%ls %d)", - qUtf16Printable(sn.name()), sectionIndex); - return result; - } - Q_ASSERT(result.state != Invalid || result.value == -1); - - return result; -} - -/*! - \internal - - Returns a date consistent with the given data on parts specified by known, - while staying as close to the given data as it can. Returns an invalid date - when on valid date is consistent with the data. -*/ - -static QDate actualDate(QDateTimeParser::Sections known, int year, int year2digits, - int month, int day, int dayofweek) -{ - QDate actual(year, month, day); - if (actual.isValid() && year % 100 == year2digits && actual.dayOfWeek() == dayofweek) - return actual; // The obvious candidate is fine :-) - - if (dayofweek < 1 || dayofweek > 7) // Invalid: ignore - known &= ~QDateTimeParser::DayOfWeekSectionMask; - - // Assuming year > 0 ... - if (year % 100 != year2digits) { - if (known & QDateTimeParser::YearSection2Digits) { - // Over-ride year, even if specified: - year += year2digits - year % 100; - known &= ~QDateTimeParser::YearSection; - } else { - year2digits = year % 100; - } - } - Q_ASSERT(year % 100 == year2digits); - - if (month < 1) { // If invalid, clip to nearest valid and ignore in known. - month = 1; - known &= ~QDateTimeParser::MonthSection; - } else if (month > 12) { - month = 12; - known &= ~QDateTimeParser::MonthSection; - } - - QDate first(year, month, 1); - int last = known & QDateTimeParser::YearSection && known & QDateTimeParser::MonthSection - ? first.daysInMonth() : 0; - // If we also know day-of-week, tweak last to the last in the month that matches it: - if (last && known & QDateTimeParser::DayOfWeekSectionMask) { - int diff = (dayofweek - first.dayOfWeek() - last) % 7; - Q_ASSERT(diff <= 0); // C++11 specifies (-ve) % (+ve) to be <= 0. - last += diff; - } - if (day < 1) { - if (known & QDateTimeParser::DayOfWeekSectionMask && last) { - day = 1 + dayofweek - first.dayOfWeek(); - if (day < 1) - day += 7; - } else { - day = 1; - } - known &= ~QDateTimeParser::DaySection; - } else if (day > 31) { - day = last; - known &= ~QDateTimeParser::DaySection; - } else if (last && day > last && (known & QDateTimeParser::DaySection) == 0) { - day = last; - } - - actual = QDate(year, month, day); - if (!actual.isValid() // We can't do better than we have, in this case - || (known & QDateTimeParser::DaySection - && known & QDateTimeParser::MonthSection - && known & QDateTimeParser::YearSection) // ditto - || actual.dayOfWeek() == dayofweek // Good enough, use it. - || (known & QDateTimeParser::DayOfWeekSectionMask) == 0) { // No contradiction, use it. - return actual; - } - - /* - Now it gets trickier. - - We have some inconsistency in our data; we've been told day of week, but - it doesn't fit with our year, month and day. At least one of these is - unknown, though: so we can fix day of week by tweaking it. - */ - - if ((known & QDateTimeParser::DaySection) == 0) { - // Relatively easy to fix. - day += dayofweek - actual.dayOfWeek(); - if (day < 1) - day += 7; - else if (day > actual.daysInMonth()) - day -= 7; - actual = QDate(year, month, day); - return actual; - } - - if ((known & QDateTimeParser::MonthSection) == 0) { - /* - Try possible month-offsets, m, preferring small; at least one (present - month doesn't work) and at most 11 (max month, 12, minus min, 1); try - in both directions, ignoring any offset that takes us out of range. - */ - for (int m = 1; m < 12; m++) { - if (m < month) { - actual = QDate(year, month - m, day); - if (actual.dayOfWeek() == dayofweek) - return actual; - } - if (m + month <= 12) { - actual = QDate(year, month + m, day); - if (actual.dayOfWeek() == dayofweek) - return actual; - } - } - // Should only get here in corner cases; e.g. day == 31 - actual = QDate(year, month, day); // Restore from trial values. - } - - if ((known & QDateTimeParser::YearSection) == 0) { - if (known & QDateTimeParser::YearSection2Digits) { - /* - Two-digit year and month are specified; choice of century can only - fix this if diff is in one of {1, 2, 5} or {2, 4, 6}; but not if - diff is in the other. It's also only reasonable to consider - adjacent century, e.g. if year thinks it's 2012 and two-digit year - is '97, it makes sense to consider 1997. If either adjacent - century does work, the other won't. - */ - actual = QDate(year + 100, month, day); - if (actual.dayOfWeek() == dayofweek) - return actual; - actual = QDate(year - 100, month, day); - if (actual.dayOfWeek() == dayofweek) - return actual; - } else { - // Offset by 7 is usually enough, but rare cases may need more: - for (int y = 1; y < 12; y++) { - actual = QDate(year - y, month, day); - if (actual.dayOfWeek() == dayofweek) - return actual; - actual = QDate(year + y, month, day); - if (actual.dayOfWeek() == dayofweek) - return actual; - } - } - actual = QDate(year, month, day); // Restore from trial values. - } - - return actual; // It'll just have to do :-( -} - -/*! - \internal -*/ - -static QTime actualTime(QDateTimeParser::Sections known, - int hour, int hour12, int ampm, - int minute, int second, int msec) -{ - // If we have no conflict, or don't know enough to diagonose one, use this: - QTime actual(hour, minute, second, msec); - if (hour12 < 0 || hour12 > 12) { // ignore bogus value - known &= ~QDateTimeParser::Hour12Section; - hour12 = hour % 12; - } - - if (ampm == -1 || (known & QDateTimeParser::AmPmSection) == 0) { - if ((known & QDateTimeParser::Hour12Section) == 0 || hour % 12 == hour12) - return actual; - - if ((known & QDateTimeParser::Hour24Section) == 0) - hour = hour12 + (hour > 12 ? 12 : 0); - } else { - Q_ASSERT(ampm == 0 || ampm == 1); - if (hour - hour12 == ampm * 12) - return actual; - - if ((known & QDateTimeParser::Hour24Section) == 0 - && known & QDateTimeParser::Hour12Section) { - hour = hour12 + ampm * 12; - } - } - actual = QTime(hour, minute, second, msec); - return actual; -} - -/*! - \internal -*/ -QDateTimeParser::StateNode -QDateTimeParser::scanString(const QDateTime &defaultValue, - bool fixup, QString *input) const -{ - State state = Acceptable; - bool conflicts = false; - const int sectionNodesCount = sectionNodes.size(); - int padding = 0; - int pos = 0; - int year, month, day; - const QDate defaultDate = defaultValue.date(); - const QTime defaultTime = defaultValue.time(); - defaultDate.getDate(&year, &month, &day); - int year2digits = year % 100; - int hour = defaultTime.hour(); - int hour12 = -1; - int minute = defaultTime.minute(); - int second = defaultTime.second(); - int msec = defaultTime.msec(); - int dayofweek = defaultDate.dayOfWeek(); - Qt::TimeSpec tspec = defaultValue.timeSpec(); - int zoneOffset = 0; // In seconds; local - UTC -#if QT_CONFIG(timezone) - QTimeZone timeZone; -#endif - switch (tspec) { - case Qt::OffsetFromUTC: // timeZone is ignored - zoneOffset = defaultValue.offsetFromUtc(); - break; -#if QT_CONFIG(timezone) - case Qt::TimeZone: - timeZone = defaultValue.timeZone(); - if (timeZone.isValid()) - zoneOffset = timeZone.offsetFromUtc(defaultValue); - // else: is there anything we can do about this ? - break; -#endif - default: // zoneOffset and timeZone are ignored - break; - } - - int ampm = -1; - Sections isSet = NoSection; - - for (int index = 0; index < sectionNodesCount; ++index) { - Q_ASSERT(state != Invalid); - const QString &separator = separators.at(index); - if (input->midRef(pos, separator.size()) != separator) { - QDTPDEBUG << "invalid because" << input->midRef(pos, separator.size()) - << "!=" << separator - << index << pos << currentSectionIndex; - return StateNode(); - } - pos += separator.size(); - sectionNodes[index].pos = pos; - int *current = 0; - const SectionNode sn = sectionNodes.at(index); - ParsedSection sect; - - { - const QDate date = actualDate(isSet, year, year2digits, month, day, dayofweek); - const QTime time = actualTime(isSet, hour, hour12, ampm, minute, second, msec); - sect = parseSection( -#if QT_CONFIG(timezone) - tspec == Qt::TimeZone ? QDateTime(date, time, timeZone) : -#endif - QDateTime(date, time, tspec, zoneOffset), - index, pos, input); - } - - QDTPDEBUG << "sectionValue" << sn.name() << *input - << "pos" << pos << "used" << sect.used << stateName(sect.state); - - padding += sect.zeroes; - if (fixup && sect.state == Intermediate && sect.used < sn.count) { - const FieldInfo fi = fieldInfo(index); - if ((fi & (Numeric|FixedWidth)) == (Numeric|FixedWidth)) { - const QString newText = QString::fromLatin1("%1").arg(sect.value, sn.count, 10, QLatin1Char('0')); - input->replace(pos, sect.used, newText); - sect.used = sn.count; - } - } - - state = qMin<State>(state, sect.state); - // QDateTimeEdit can fix Intermediate and zeroes, but input needing that didn't match format: - if (state == Invalid || (context == FromString && (state == Intermediate || sect.zeroes))) - return StateNode(); - - switch (sn.type) { - case TimeZoneSection: - current = &zoneOffset; - if (sect.used > 0) { -#if QT_CONFIG(timezone) // Synchronize with what findTimeZone() found: - QStringRef zoneName = input->midRef(pos, sect.used); - Q_ASSERT(!zoneName.isEmpty()); // sect.used > 0 - const QByteArray latinZone(zoneName == QLatin1String("Z") - ? QByteArray("UTC") : zoneName.toLatin1()); - timeZone = QTimeZone(latinZone); - tspec = timeZone.isValid() - ? (QTimeZone::isTimeZoneIdAvailable(latinZone) - ? Qt::TimeZone - : Qt::OffsetFromUTC) - : (Q_ASSERT(startsWithLocalTimeZone(zoneName)), Qt::LocalTime); -#else - tspec = Qt::LocalTime; -#endif - } - break; - case Hour24Section: current = &hour; break; - case Hour12Section: current = &hour12; break; - case MinuteSection: current = &minute; break; - case SecondSection: current = &second; break; - case MSecSection: current = &msec; break; - case YearSection: current = &year; break; - case YearSection2Digits: current = &year2digits; break; - case MonthSection: current = &month; break; - case DayOfWeekSectionShort: - case DayOfWeekSectionLong: current = &dayofweek; break; - case DaySection: current = &day; sect.value = qMax<int>(1, sect.value); break; - case AmPmSection: current = &m; break; - default: - qWarning("QDateTimeParser::parse Internal error (%ls)", - qUtf16Printable(sn.name())); - break; - } - - if (sect.used > 0) - pos += sect.used; - QDTPDEBUG << index << sn.name() << "is set to" - << pos << "state is" << stateName(state); - - if (!current) { - qWarning("QDateTimeParser::parse Internal error 2"); - return StateNode(); - } - if (isSet & sn.type && *current != sect.value) { - QDTPDEBUG << "CONFLICT " << sn.name() << *current << sect.value; - conflicts = true; - if (index != currentSectionIndex || sect.state == Invalid) { - continue; - } - } - if (sect.state != Invalid) - *current = sect.value; - - // Record the present section: - isSet |= sn.type; - } - - if (input->midRef(pos) != separators.last()) { - QDTPDEBUG << "invalid because" << input->midRef(pos) - << "!=" << separators.last() << pos; - return StateNode(); - } - - if (parserType != QVariant::Time) { - if (year % 100 != year2digits && (isSet & YearSection2Digits)) { - if (!(isSet & YearSection)) { - year = (year / 100) * 100; - year += year2digits; - } else { - conflicts = true; - const SectionNode &sn = sectionNode(currentSectionIndex); - if (sn.type == YearSection2Digits) { - year = (year / 100) * 100; - year += year2digits; - } - } - } - - const QDate date(year, month, day); - const int diff = dayofweek - date.dayOfWeek(); - if (diff != 0 && state == Acceptable && isSet & DayOfWeekSectionMask) { - if (isSet & DaySection) - conflicts = true; - const SectionNode &sn = sectionNode(currentSectionIndex); - if (sn.type & DayOfWeekSectionMask || currentSectionIndex == -1) { - // dayofweek should be preferred - day += diff; - if (day <= 0) { - day += 7; - } else if (day > date.daysInMonth()) { - day -= 7; - } - QDTPDEBUG << year << month << day << dayofweek - << diff << QDate(year, month, day).dayOfWeek(); - } - } - - bool needfixday = false; - if (sectionType(currentSectionIndex) & DaySectionMask) { - cachedDay = day; - } else if (cachedDay > day) { - day = cachedDay; - needfixday = true; - } - - if (!QDate::isValid(year, month, day)) { - if (day < 32) { - cachedDay = day; - } - if (day > 28 && QDate::isValid(year, month, 1)) { - needfixday = true; - } - } - if (needfixday) { - if (context == FromString) { - return StateNode(); - } - if (state == Acceptable && fixday) { - day = qMin<int>(day, QDate(year, month, 1).daysInMonth()); - - const QLocale loc = locale(); - for (int i=0; i<sectionNodesCount; ++i) { - const SectionNode sn = sectionNode(i); - if (sn.type & DaySection) { - input->replace(sectionPos(sn), sectionSize(i), loc.toString(day)); - } else if (sn.type & DayOfWeekSectionMask) { - const int dayOfWeek = QDate(year, month, day).dayOfWeek(); - const QLocale::FormatType dayFormat = - (sn.type == DayOfWeekSectionShort - ? QLocale::ShortFormat : QLocale::LongFormat); - const QString dayName(loc.dayName(dayOfWeek, dayFormat)); - input->replace(sectionPos(sn), sectionSize(i), dayName); - } - } - } else if (state > Intermediate) { - state = Intermediate; - } - } - } - - if (parserType != QVariant::Date) { - if (isSet & Hour12Section) { - const bool hasHour = isSet & Hour24Section; - if (ampm == -1) { - if (hasHour) { - ampm = (hour < 12 ? 0 : 1); - } else { - ampm = 0; // no way to tell if this is am or pm so I assume am - } - } - hour12 = (ampm == 0 ? hour12 % 12 : (hour12 % 12) + 12); - if (!hasHour) { - hour = hour12; - } else if (hour != hour12) { - conflicts = true; - } - } else if (ampm != -1) { - if (!(isSet & (Hour24Section))) { - hour = (12 * ampm); // special case. Only ap section - } else if ((ampm == 0) != (hour < 12)) { - conflicts = true; - } - } - - } - - QDTPDEBUG << year << month << day << hour << minute << second << msec; - Q_ASSERT(state != Invalid); - - const QDate date(year, month, day); - const QTime time(hour, minute, second, msec); - const QDateTime when = -#if QT_CONFIG(timezone) - tspec == Qt::TimeZone ? QDateTime(date, time, timeZone) : -#endif - QDateTime(date, time, tspec, zoneOffset); - - // If hour wasn't specified, check the default we're using exists on the - // given date (which might be a spring-forward, skipping an hour). - if (parserType == QVariant::DateTime && !(isSet & HourSectionMask) && !when.isValid()) { - qint64 msecs = when.toMSecsSinceEpoch(); - // Fortunately, that gets a useful answer ... - const QDateTime replace = -#if QT_CONFIG(timezone) - tspec == Qt::TimeZone - ? QDateTime::fromMSecsSinceEpoch(msecs, timeZone) : -#endif - QDateTime::fromMSecsSinceEpoch(msecs, tspec, zoneOffset); - const QTime tick = replace.time(); - if (replace.date() == date - && (!(isSet & MinuteSection) || tick.minute() == minute) - && (!(isSet & SecondSection) || tick.second() == second) - && (!(isSet & MSecSection) || tick.msec() == msec)) { - return StateNode(replace, state, padding, conflicts); - } - } - - return StateNode(when, state, padding, conflicts); -} - -/*! - \internal -*/ - -QDateTimeParser::StateNode -QDateTimeParser::parse(QString input, int position, const QDateTime &defaultValue, bool fixup) const -{ - const QDateTime minimum = getMinimum(); - const QDateTime maximum = getMaximum(); - - QDTPDEBUG << "parse" << input; - StateNode scan = scanString(defaultValue, fixup, &input); - QDTPDEBUGN("'%s' => '%s'(%s)", input.toLatin1().constData(), - scan.value.toString(QLatin1String("yyyy/MM/dd hh:mm:ss.zzz")).toLatin1().constData(), - stateName(scan.state).toLatin1().constData()); - - if (scan.value.isValid() && scan.state != Invalid) { - if (context != FromString && scan.value < minimum) { - const QLatin1Char space(' '); - if (scan.value >= minimum) - qWarning("QDateTimeParser::parse Internal error 3 (%ls %ls)", - qUtf16Printable(scan.value.toString()), qUtf16Printable(minimum.toString())); - - bool done = false; - scan.state = Invalid; - const int sectionNodesCount = sectionNodes.size(); - for (int i=0; i<sectionNodesCount && !done; ++i) { - const SectionNode &sn = sectionNodes.at(i); - QString t = sectionText(input, i, sn.pos).toLower(); - if ((t.size() < sectionMaxSize(i) - && (((int)fieldInfo(i) & (FixedWidth|Numeric)) != Numeric)) - || t.contains(space)) { - switch (sn.type) { - case AmPmSection: - switch (findAmPm(t, i)) { - case AM: - case PM: - scan.state = Acceptable; - done = true; - break; - case Neither: - scan.state = Invalid; - done = true; - break; - case PossibleAM: - case PossiblePM: - case PossibleBoth: { - const QDateTime copy(scan.value.addSecs(12 * 60 * 60)); - if (copy >= minimum && copy <= maximum) { - scan.state = Intermediate; - done = true; - } - break; } - } - Q_FALLTHROUGH(); - case MonthSection: - if (sn.count >= 3) { - const int finalMonth = scan.value.date().month(); - int tmp = finalMonth; - // I know the first possible month makes the date too early - while ((tmp = findMonth(t, tmp + 1, i)) != -1) { - const QDateTime copy(scan.value.addMonths(tmp - finalMonth)); - if (copy >= minimum && copy <= maximum) - break; // break out of while - } - if (tmp != -1) { - scan.state = Intermediate; - done = true; - } - break; - } - Q_FALLTHROUGH(); - default: { - int toMin; - int toMax; - - if (sn.type & TimeSectionMask) { - if (scan.value.daysTo(minimum) != 0) { - break; - } - const QTime time = scan.value.time(); - toMin = time.msecsTo(minimum.time()); - if (scan.value.daysTo(maximum) > 0) - toMax = -1; // can't get to max - else - toMax = time.msecsTo(maximum.time()); - } else { - toMin = scan.value.daysTo(minimum); - toMax = scan.value.daysTo(maximum); - } - const int maxChange = sn.maxChange(); - if (toMin > maxChange) { - QDTPDEBUG << "invalid because toMin > maxChange" << toMin - << maxChange << t << scan.value << minimum; - scan.state = Invalid; - done = true; - break; - } else if (toMax > maxChange) { - toMax = -1; // can't get to max - } - - const int min = getDigit(minimum, i); - if (min == -1) { - qWarning("QDateTimeParser::parse Internal error 4 (%ls)", - qUtf16Printable(sn.name())); - scan.state = Invalid; - done = true; - break; - } - - int max = toMax != -1 ? getDigit(maximum, i) : absoluteMax(i, scan.value); - int pos = position + scan.padded - sn.pos; - if (pos < 0 || pos >= t.size()) - pos = -1; - if (!potentialValue(t.simplified(), min, max, i, scan.value, pos)) { - QDTPDEBUG << "invalid because potentialValue(" << t.simplified() << min << max - << sn.name() << "returned" << toMax << toMin << pos; - scan.state = Invalid; - done = true; - break; - } - scan.state = Intermediate; - done = true; - break; } - } - } - } - } else { - if (context == FromString) { - // optimization - Q_ASSERT(maximum.date().toJulianDay() == 5373484); - if (scan.value.date().toJulianDay() > 5373484) - scan.state = Invalid; - } else { - if (scan.value > maximum) - scan.state = Invalid; - } - - QDTPDEBUG << "not checking intermediate because scanned value is" << scan.value << minimum << maximum; - } - } - text = scan.input = input; - // Set spec *after* all checking, so validity is a property of the string: - scan.value = scan.value.toTimeSpec(spec); - return scan; -} - -/* - \internal - \brief Returns the index in \a entries with the best prefix match to \a text - - Scans \a entries looking for an entry overlapping \a text as much as possible - (an exact match beats any prefix match; a match of the full entry as prefix of - text beats any entry but one matching a longer prefix; otherwise, the match of - longest prefix wins, earlier entries beating later on a draw). Records the - length of overlap in *used (if \a used is non-NULL) and the first entry that - overlapped this much in *usedText (if \a usedText is non-NULL). - */ -static int findTextEntry(const QString &text, const QVector<QString> &entries, QString *usedText, int *used) -{ - if (text.isEmpty()) - return -1; - - int bestMatch = -1; - int bestCount = 0; - for (int n = 0; n < entries.size(); ++n) - { - const QString &name = entries.at(n); - - const int limit = qMin(text.size(), name.size()); - int i = 0; - while (i < limit && text.at(i) == name.at(i).toLower()) - ++i; - // Full match beats an equal prefix match: - if (i > bestCount || (i == bestCount && i == name.size())) { - bestCount = i; - bestMatch = n; - if (i == name.size() && i == text.size()) - break; // Exact match, name == text, wins. - } - } - if (usedText && bestMatch != -1) - *usedText = entries.at(bestMatch); - if (used) - *used = bestCount; - - return bestMatch; -} - -/*! - \internal - finds the first possible monthname that \a str1 can - match. Starting from \a index; str should already by lowered -*/ - -int QDateTimeParser::findMonth(const QString &str1, int startMonth, int sectionIndex, - QString *usedMonth, int *used) const -{ - const SectionNode &sn = sectionNode(sectionIndex); - if (sn.type != MonthSection) { - qWarning("QDateTimeParser::findMonth Internal error"); - return -1; - } - - QLocale::FormatType type = sn.count == 3 ? QLocale::ShortFormat : QLocale::LongFormat; - QLocale l = locale(); - QVector<QString> monthNames; - monthNames.reserve(13 - startMonth); - for (int month = startMonth; month <= 12; ++month) - monthNames.append(l.monthName(month, type)); - - const int index = findTextEntry(str1, monthNames, usedMonth, used); - return index < 0 ? index : index + startMonth; -} - -int QDateTimeParser::findDay(const QString &str1, int startDay, int sectionIndex, QString *usedDay, int *used) const -{ - const SectionNode &sn = sectionNode(sectionIndex); - if (!(sn.type & DaySectionMask)) { - qWarning("QDateTimeParser::findDay Internal error"); - return -1; - } - - QLocale::FormatType type = sn.count == 4 ? QLocale::LongFormat : QLocale::ShortFormat; - QLocale l = locale(); - QVector<QString> daysOfWeek; - daysOfWeek.reserve(8 - startDay); - for (int day = startDay; day <= 7; ++day) - daysOfWeek.append(l.dayName(day, type)); - - const int index = findTextEntry(str1, daysOfWeek, usedDay, used); - return index < 0 ? index : index + startDay; -} - -/*! - \internal - - Return's .value is zone's offset, zone time - UTC time, in seconds. - See QTimeZonePrivate::isValidId() for the format of zone names. - */ -QDateTimeParser::ParsedSection -QDateTimeParser::findTimeZone(QStringRef str, const QDateTime &when, - int maxVal, int minVal) const -{ -#if QT_CONFIG(timezone) - int index = startsWithLocalTimeZone(str); - int offset; - - if (index > 0) { - // We won't actually use this, but we need a valid return: - offset = QDateTime(when.date(), when.time(), Qt::LocalTime).offsetFromUtc(); - } else { - int size = str.length(); - offset = std::numeric_limits<int>::max(); // deliberately out of range - Q_ASSERT(offset > QTimeZone::MaxUtcOffsetSecs); // cf. absoluteMax() - - // Collect up plausibly-valid characters; let QTimeZone work out what's truly valid. - while (index < size) { - QChar here = str[index]; - if (here < 127 - && (here.isLetterOrNumber() - || here == '/' || here == '-' - || here == '_' || here == '.' - || here == '+' || here == ':')) - index++; - else - break; - } - - while (index > 0) { - str.truncate(index); - if (str == QLatin1String("Z")) { - offset = 0; // "Zulu" time - a.k.a. UTC - break; - } - QTimeZone zone(str.toLatin1()); - if (zone.isValid()) { - offset = zone.offsetFromUtc(when); - break; - } - index--; // maybe we collected too much ... - } - } - - if (index > 0 && maxVal >= offset && offset >= minVal) - return ParsedSection(Acceptable, offset, index); - -#endif // timezone - return ParsedSection(); -} - -/*! - \internal - - Returns - AM if str == tr("AM") - PM if str == tr("PM") - PossibleAM if str can become tr("AM") - PossiblePM if str can become tr("PM") - PossibleBoth if str can become tr("PM") and can become tr("AM") - Neither if str can't become anything sensible -*/ -QDateTimeParser::AmPmFinder QDateTimeParser::findAmPm(QString &str, int sectionIndex, int *used) const -{ - const SectionNode &s = sectionNode(sectionIndex); - if (s.type != AmPmSection) { - qWarning("QDateTimeParser::findAmPm Internal error"); - return Neither; - } - if (used) - *used = str.size(); - if (QStringRef(&str).trimmed().isEmpty()) { - return PossibleBoth; - } - const QLatin1Char space(' '); - int size = sectionMaxSize(sectionIndex); - - enum { - amindex = 0, - pmindex = 1 - }; - QString ampm[2]; - ampm[amindex] = getAmPmText(AmText, s.count == 1 ? UpperCase : LowerCase); - ampm[pmindex] = getAmPmText(PmText, s.count == 1 ? UpperCase : LowerCase); - for (int i=0; i<2; ++i) - ampm[i].truncate(size); - - QDTPDEBUG << "findAmPm" << str << ampm[0] << ampm[1]; - - if (str.indexOf(ampm[amindex], 0, Qt::CaseInsensitive) == 0) { - str = ampm[amindex]; - return AM; - } else if (str.indexOf(ampm[pmindex], 0, Qt::CaseInsensitive) == 0) { - str = ampm[pmindex]; - return PM; - } else if (context == FromString || (str.count(space) == 0 && str.size() >= size)) { - return Neither; - } - size = qMin(size, str.size()); - - bool broken[2] = {false, false}; - for (int i=0; i<size; ++i) { - if (str.at(i) != space) { - for (int j=0; j<2; ++j) { - if (!broken[j]) { - int index = ampm[j].indexOf(str.at(i)); - QDTPDEBUG << "looking for" << str.at(i) - << "in" << ampm[j] << "and got" << index; - if (index == -1) { - if (str.at(i).category() == QChar::Letter_Uppercase) { - index = ampm[j].indexOf(str.at(i).toLower()); - QDTPDEBUG << "trying with" << str.at(i).toLower() - << "in" << ampm[j] << "and got" << index; - } else if (str.at(i).category() == QChar::Letter_Lowercase) { - index = ampm[j].indexOf(str.at(i).toUpper()); - QDTPDEBUG << "trying with" << str.at(i).toUpper() - << "in" << ampm[j] << "and got" << index; - } - if (index == -1) { - broken[j] = true; - if (broken[amindex] && broken[pmindex]) { - QDTPDEBUG << str << "didn't make it"; - return Neither; - } - continue; - } else { - str[i] = ampm[j].at(index); // fix case - } - } - ampm[j].remove(index, 1); - } - } - } - } - if (!broken[pmindex] && !broken[amindex]) - return PossibleBoth; - return (!broken[amindex] ? PossibleAM : PossiblePM); -} -#endif // datestring - -/*! - \internal - Max number of units that can be changed by this section. -*/ - -int QDateTimeParser::SectionNode::maxChange() const -{ - switch (type) { - // Time. unit is msec - case MSecSection: return 999; - case SecondSection: return 59 * 1000; - case MinuteSection: return 59 * 60 * 1000; - case Hour24Section: case Hour12Section: return 59 * 60 * 60 * 1000; - - // Date. unit is day - case DayOfWeekSectionShort: - case DayOfWeekSectionLong: return 7; - case DaySection: return 30; - case MonthSection: return 365 - 31; - case YearSection: return 9999 * 365; - case YearSection2Digits: return 100 * 365; - default: - qWarning("QDateTimeParser::maxChange() Internal error (%ls)", - qUtf16Printable(name())); - } - - return -1; -} - -QDateTimeParser::FieldInfo QDateTimeParser::fieldInfo(int index) const -{ - FieldInfo ret = 0; - const SectionNode &sn = sectionNode(index); - switch (sn.type) { - case MSecSection: - ret |= Fraction; - Q_FALLTHROUGH(); - case SecondSection: - case MinuteSection: - case Hour24Section: - case Hour12Section: - case YearSection2Digits: - ret |= AllowPartial; - Q_FALLTHROUGH(); - case YearSection: - ret |= Numeric; - if (sn.count != 1) - ret |= FixedWidth; - break; - case MonthSection: - case DaySection: - switch (sn.count) { - case 2: - ret |= FixedWidth; - Q_FALLTHROUGH(); - case 1: - ret |= (Numeric|AllowPartial); - break; - } - break; - case DayOfWeekSectionShort: - case DayOfWeekSectionLong: - if (sn.count == 3) - ret |= FixedWidth; - break; - case AmPmSection: - ret |= FixedWidth; - break; - case TimeZoneSection: - break; - default: - qWarning("QDateTimeParser::fieldInfo Internal error 2 (%d %ls %d)", - index, qUtf16Printable(sn.name()), sn.count); - break; - } - return ret; -} - -QString QDateTimeParser::SectionNode::format() const -{ - QChar fillChar; - switch (type) { - case AmPmSection: return count == 1 ? QLatin1String("AP") : QLatin1String("ap"); - case MSecSection: fillChar = QLatin1Char('z'); break; - case SecondSection: fillChar = QLatin1Char('s'); break; - case MinuteSection: fillChar = QLatin1Char('m'); break; - case Hour24Section: fillChar = QLatin1Char('H'); break; - case Hour12Section: fillChar = QLatin1Char('h'); break; - case DayOfWeekSectionShort: - case DayOfWeekSectionLong: - case DaySection: fillChar = QLatin1Char('d'); break; - case MonthSection: fillChar = QLatin1Char('M'); break; - case YearSection2Digits: - case YearSection: fillChar = QLatin1Char('y'); break; - default: - qWarning("QDateTimeParser::sectionFormat Internal error (%ls)", - qUtf16Printable(name(type))); - return QString(); - } - if (fillChar.isNull()) { - qWarning("QDateTimeParser::sectionFormat Internal error 2"); - return QString(); - } - return QString(count, fillChar); -} - - -/*! - \internal - - Returns \c true if str can be modified to represent a - number that is within min and max. -*/ - -bool QDateTimeParser::potentialValue(const QStringRef &str, int min, int max, int index, - const QDateTime ¤tValue, int insert) const -{ - if (str.isEmpty()) { - return true; - } - const int size = sectionMaxSize(index); - int val = (int)locale().toUInt(str); - const SectionNode &sn = sectionNode(index); - if (sn.type == YearSection2Digits) { - const int year = currentValue.date().year(); - val += year - (year % 100); - } - if (val >= min && val <= max && str.size() == size) { - return true; - } else if (val > max) { - return false; - } else if (str.size() == size && val < min) { - return false; - } - - const int len = size - str.size(); - for (int i=0; i<len; ++i) { - for (int j=0; j<10; ++j) { - if (potentialValue(str + QLatin1Char('0' + j), min, max, index, currentValue, insert)) { - return true; - } else if (insert >= 0) { - const QString tmp = str.left(insert) + QLatin1Char('0' + j) + str.mid(insert); - if (potentialValue(tmp, min, max, index, currentValue, insert)) - return true; - } - } - } - - return false; -} - -/*! - \internal -*/ -bool QDateTimeParser::skipToNextSection(int index, const QDateTime ¤t, const QStringRef &text) const -{ - Q_ASSERT(text.size() < sectionMaxSize(index)); - const SectionNode &node = sectionNode(index); - int min = absoluteMin(index); - int max = absoluteMax(index, current); - // Time-zone field is only numeric if given as offset from UTC: - if (node.type != TimeZoneSection || current.timeSpec() == Qt::OffsetFromUTC) { - const QDateTime maximum = getMaximum(); - const QDateTime minimum = getMinimum(); - Q_ASSERT(current >= minimum && current <= maximum); - - QDateTime tmp = current; - if (!setDigit(tmp, index, min) || tmp < minimum) - min = getDigit(minimum, index); - - if (!setDigit(tmp, index, max) || tmp > maximum) - max = getDigit(maximum, index); - } - int pos = cursorPosition() - node.pos; - if (pos < 0 || pos >= text.size()) - pos = -1; - - /* - If the value potentially can become another valid entry we don't want to - skip to the next. E.g. In a M field (month without leading 0) if you type - 1 we don't want to autoskip (there might be [012] following) but if you - type 3 we do. - */ - return !potentialValue(text, min, max, index, current, pos); -} - -/*! - \internal - For debugging. Returns the name of the section \a s. -*/ - -QString QDateTimeParser::SectionNode::name(QDateTimeParser::Section s) -{ - switch (s) { - case QDateTimeParser::AmPmSection: return QLatin1String("AmPmSection"); - case QDateTimeParser::DaySection: return QLatin1String("DaySection"); - case QDateTimeParser::DayOfWeekSectionShort: return QLatin1String("DayOfWeekSectionShort"); - case QDateTimeParser::DayOfWeekSectionLong: return QLatin1String("DayOfWeekSectionLong"); - case QDateTimeParser::Hour24Section: return QLatin1String("Hour24Section"); - case QDateTimeParser::Hour12Section: return QLatin1String("Hour12Section"); - case QDateTimeParser::MSecSection: return QLatin1String("MSecSection"); - case QDateTimeParser::MinuteSection: return QLatin1String("MinuteSection"); - case QDateTimeParser::MonthSection: return QLatin1String("MonthSection"); - case QDateTimeParser::SecondSection: return QLatin1String("SecondSection"); - case QDateTimeParser::TimeZoneSection: return QLatin1String("TimeZoneSection"); - case QDateTimeParser::YearSection: return QLatin1String("YearSection"); - case QDateTimeParser::YearSection2Digits: return QLatin1String("YearSection2Digits"); - case QDateTimeParser::NoSection: return QLatin1String("NoSection"); - case QDateTimeParser::FirstSection: return QLatin1String("FirstSection"); - case QDateTimeParser::LastSection: return QLatin1String("LastSection"); - default: return QLatin1String("Unknown section ") + QString::number(int(s)); - } -} - -/*! - \internal - For debugging. Returns the name of the state \a s. -*/ - -QString QDateTimeParser::stateName(State s) const -{ - switch (s) { - case Invalid: return QLatin1String("Invalid"); - case Intermediate: return QLatin1String("Intermediate"); - case Acceptable: return QLatin1String("Acceptable"); - default: return QLatin1String("Unknown state ") + QString::number(s); - } -} - -#if QT_CONFIG(datestring) -bool QDateTimeParser::fromString(const QString &t, QDate *date, QTime *time) const -{ - QDateTime val(QDate(1900, 1, 1).startOfDay()); - const StateNode tmp = parse(t, -1, val, false); - if (tmp.state != Acceptable || tmp.conflicts) { - return false; - } - if (time) { - const QTime t = tmp.value.time(); - if (!t.isValid()) { - return false; - } - *time = t; - } - - if (date) { - const QDate d = tmp.value.date(); - if (!d.isValid()) { - return false; - } - *date = d; - } - return true; -} -#endif // datestring - -QDateTime QDateTimeParser::getMinimum() const -{ - // Cache the most common case - if (spec == Qt::LocalTime) { - static const QDateTime localTimeMin(QDATETIMEEDIT_DATE_MIN.startOfDay(Qt::LocalTime)); - return localTimeMin; - } - return QDateTime(QDATETIMEEDIT_DATE_MIN.startOfDay(spec)); -} - -QDateTime QDateTimeParser::getMaximum() const -{ - // Cache the most common case - if (spec == Qt::LocalTime) { - static const QDateTime localTimeMax(QDATETIMEEDIT_DATE_MAX.endOfDay(Qt::LocalTime)); - return localTimeMax; - } - return QDateTime(QDATETIMEEDIT_DATE_MAX.endOfDay(spec)); -} - -QString QDateTimeParser::getAmPmText(AmPm ap, Case cs) const -{ - const QLocale loc = locale(); - QString raw = ap == AmText ? loc.amText() : loc.pmText(); - return cs == UpperCase ? raw.toUpper() : raw.toLower(); -} - -/* - \internal - - I give arg2 preference because arg1 is always a QDateTime. -*/ - -bool operator==(const QDateTimeParser::SectionNode &s1, const QDateTimeParser::SectionNode &s2) -{ - return (s1.type == s2.type) && (s1.pos == s2.pos) && (s1.count == s2.count); -} - -QT_END_NAMESPACE diff --git a/src/corelib/tools/qdatetimeparser_p.h b/src/corelib/tools/qdatetimeparser_p.h deleted file mode 100644 index d9e39f0795..0000000000 --- a/src/corelib/tools/qdatetimeparser_p.h +++ /dev/null @@ -1,310 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtCore module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef QDATETIMEPARSER_P_H -#define QDATETIMEPARSER_P_H - -// -// W A R N I N G -// ------------- -// -// This file is not part of the Qt API. It exists purely as an -// implementation detail. This header file may change from version to -// version without notice, or even be removed. -// -// We mean it. -// - -#include <QtCore/private/qglobal_p.h> -#include "qplatformdefs.h" -#include "QtCore/qatomic.h" -#include "QtCore/qdatetime.h" -#include "QtCore/qstringlist.h" -#include "QtCore/qlocale.h" -#ifndef QT_BOOTSTRAPPED -# include "QtCore/qvariant.h" -#endif -#include "QtCore/qvector.h" -#include "QtCore/qcoreapplication.h" - -QT_REQUIRE_CONFIG(datetimeparser); - -#define QDATETIMEEDIT_TIME_MIN QTime(0, 0) // Prefer QDate::startOfDay() -#define QDATETIMEEDIT_TIME_MAX QTime(23, 59, 59, 999) // Prefer QDate::endOfDay() -#define QDATETIMEEDIT_DATE_MIN QDate(100, 1, 1) -#define QDATETIMEEDIT_COMPAT_DATE_MIN QDate(1752, 9, 14) -#define QDATETIMEEDIT_DATE_MAX QDate(9999, 12, 31) -#define QDATETIMEEDIT_DATE_INITIAL QDate(2000, 1, 1) - -QT_BEGIN_NAMESPACE - -class Q_CORE_EXPORT QDateTimeParser -{ - Q_DECLARE_TR_FUNCTIONS(QDateTimeParser) -public: - enum Context { - FromString, - DateTimeEdit - }; - QDateTimeParser(QVariant::Type t, Context ctx) - : currentSectionIndex(-1), display(nullptr), cachedDay(-1), parserType(t), - fixday(false), spec(Qt::LocalTime), context(ctx) - { - defaultLocale = QLocale::system(); - first.type = FirstSection; - first.pos = -1; - first.count = -1; - first.zeroesAdded = 0; - last.type = LastSection; - last.pos = -1; - last.count = -1; - last.zeroesAdded = 0; - none.type = NoSection; - none.pos = -1; - none.count = -1; - none.zeroesAdded = 0; - } - virtual ~QDateTimeParser(); - - enum Section { - NoSection = 0x00000, - AmPmSection = 0x00001, - MSecSection = 0x00002, - SecondSection = 0x00004, - MinuteSection = 0x00008, - Hour12Section = 0x00010, - Hour24Section = 0x00020, - TimeZoneSection = 0x00040, - HourSectionMask = (Hour12Section | Hour24Section), - TimeSectionMask = (MSecSection | SecondSection | MinuteSection | - HourSectionMask | AmPmSection | TimeZoneSection), - - DaySection = 0x00100, - MonthSection = 0x00200, - YearSection = 0x00400, - YearSection2Digits = 0x00800, - YearSectionMask = YearSection | YearSection2Digits, - DayOfWeekSectionShort = 0x01000, - DayOfWeekSectionLong = 0x02000, - DayOfWeekSectionMask = DayOfWeekSectionShort | DayOfWeekSectionLong, - DaySectionMask = DaySection | DayOfWeekSectionMask, - DateSectionMask = DaySectionMask | MonthSection | YearSectionMask, - - Internal = 0x10000, - FirstSection = 0x20000 | Internal, - LastSection = 0x40000 | Internal, - CalendarPopupSection = 0x80000 | Internal, - - NoSectionIndex = -1, - FirstSectionIndex = -2, - LastSectionIndex = -3, - CalendarPopupIndex = -4 - }; // extending qdatetimeedit.h's equivalent - Q_DECLARE_FLAGS(Sections, Section) - - struct Q_CORE_EXPORT SectionNode { - Section type; - mutable int pos; - int count; - int zeroesAdded; - - static QString name(Section s); - QString name() const { return name(type); } - QString format() const; - int maxChange() const; - }; - - enum State { // duplicated from QValidator - Invalid, - Intermediate, - Acceptable - }; - - struct StateNode { - StateNode() : state(Invalid), padded(0), conflicts(false) {} - StateNode(const QDateTime &val, State ok=Acceptable, int pad=0, bool bad=false) - : value(val), state(ok), padded(pad), conflicts(bad) {} - QString input; - QDateTime value; - State state; - int padded; - bool conflicts; - }; - - enum AmPm { - AmText, - PmText - }; - - enum Case { - UpperCase, - LowerCase - }; - -#if QT_CONFIG(datestring) - StateNode parse(QString input, int position, const QDateTime &defaultValue, bool fixup) const; - bool fromString(const QString &text, QDate *date, QTime *time) const; -#endif - bool parseFormat(const QString &format); - - enum FieldInfoFlag { - Numeric = 0x01, - FixedWidth = 0x02, - AllowPartial = 0x04, - Fraction = 0x08 - }; - Q_DECLARE_FLAGS(FieldInfo, FieldInfoFlag) - - FieldInfo fieldInfo(int index) const; - - void setDefaultLocale(const QLocale &loc) { defaultLocale = loc; } - virtual QString displayText() const { return text; } - -private: - int sectionMaxSize(Section s, int count) const; - QString sectionText(const QString &text, int sectionIndex, int index) const; -#if QT_CONFIG(datestring) - StateNode scanString(const QDateTime &defaultValue, - bool fixup, QString *input) const; - struct ParsedSection { - int value; - int used; - int zeroes; - State state; - Q_DECL_CONSTEXPR ParsedSection(State ok = Invalid, - int val = 0, int read = 0, int zs = 0) - : value(ok == Invalid ? -1 : val), used(read), zeroes(zs), state(ok) - {} - }; - ParsedSection parseSection(const QDateTime ¤tValue, int sectionIndex, - int offset, QString *text) const; - int findMonth(const QString &str1, int monthstart, int sectionIndex, - QString *monthName = nullptr, int *used = nullptr) const; - int findDay(const QString &str1, int intDaystart, int sectionIndex, - QString *dayName = nullptr, int *used = nullptr) const; - ParsedSection findTimeZone(QStringRef str, const QDateTime &when, - int maxVal, int minVal) const; -#if QT_CONFIG(timezone) - // Implemented in qdatetime.cpp: - static int startsWithLocalTimeZone(const QStringRef name); -#endif - - enum AmPmFinder { - Neither = -1, - AM = 0, - PM = 1, - PossibleAM = 2, - PossiblePM = 3, - PossibleBoth = 4 - }; - AmPmFinder findAmPm(QString &str, int index, int *used = nullptr) const; -#endif // datestring - - bool potentialValue(const QStringRef &str, int min, int max, int index, - const QDateTime ¤tValue, int insert) const; - bool potentialValue(const QString &str, int min, int max, int index, - const QDateTime ¤tValue, int insert) const - { - return potentialValue(QStringRef(&str), min, max, index, currentValue, insert); - } - -protected: // for the benefit of QDateTimeEditPrivate - int sectionSize(int index) const; - int sectionMaxSize(int index) const; - int sectionPos(int index) const; - int sectionPos(const SectionNode &sn) const; - - const SectionNode §ionNode(int index) const; - Section sectionType(int index) const; - QString sectionText(int sectionIndex) const; - int getDigit(const QDateTime &dt, int index) const; - bool setDigit(QDateTime &t, int index, int newval) const; - - int absoluteMax(int index, const QDateTime &value = QDateTime()) const; - int absoluteMin(int index) const; - - bool skipToNextSection(int section, const QDateTime ¤t, const QStringRef §ionText) const; - bool skipToNextSection(int section, const QDateTime ¤t, const QString §ionText) const - { - return skipToNextSection(section, current, QStringRef(§ionText)); - } - QString stateName(State s) const; - virtual QDateTime getMinimum() const; - virtual QDateTime getMaximum() const; - virtual int cursorPosition() const { return -1; } - virtual QString getAmPmText(AmPm ap, Case cs) const; - virtual QLocale locale() const { return defaultLocale; } - - mutable int currentSectionIndex; - Sections display; - /* - This stores the most recently selected day. - It is useful when considering the following scenario: - - 1. Date is: 31/01/2000 - 2. User increments month: 29/02/2000 - 3. User increments month: 31/03/2000 - - At step 1, cachedDay stores 31. At step 2, the 31 is invalid for February, so the cachedDay is not updated. - At step 3, the month is changed to March, for which 31 is a valid day. Since 29 < 31, the day is set to cachedDay. - This is good for when users have selected their desired day and are scrolling up or down in the month or year section - and do not want smaller months (or non-leap years) to alter the day that they chose. - */ - mutable int cachedDay; - mutable QString text; - QVector<SectionNode> sectionNodes; - SectionNode first, last, none, popup; - QStringList separators; - QString displayFormat; - QLocale defaultLocale; - QVariant::Type parserType; - bool fixday; - Qt::TimeSpec spec; // spec if used by QDateTimeEdit - Context context; -}; -Q_DECLARE_TYPEINFO(QDateTimeParser::SectionNode, Q_PRIMITIVE_TYPE); - -Q_CORE_EXPORT bool operator==(const QDateTimeParser::SectionNode &s1, const QDateTimeParser::SectionNode &s2); - -Q_DECLARE_OPERATORS_FOR_FLAGS(QDateTimeParser::Sections) -Q_DECLARE_OPERATORS_FOR_FLAGS(QDateTimeParser::FieldInfo) - -QT_END_NAMESPACE - -#endif // QDATETIME_P_H diff --git a/src/corelib/tools/qlocale.cpp b/src/corelib/tools/qlocale.cpp index f6eaa53c3a..c8740e55f3 100644 --- a/src/corelib/tools/qlocale.cpp +++ b/src/corelib/tools/qlocale.cpp @@ -55,7 +55,7 @@ #include "qlocale_p.h" #include "qlocale_tools_p.h" #if QT_CONFIG(datetimeparser) -#include "qdatetimeparser_p.h" +#include "private/qdatetimeparser_p.h" #endif #include "qnamespace.h" #include "qdatetime.h" diff --git a/src/corelib/tools/qtimezone.cpp b/src/corelib/tools/qtimezone.cpp deleted file mode 100644 index ef323de14a..0000000000 --- a/src/corelib/tools/qtimezone.cpp +++ /dev/null @@ -1,997 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2013 John Layt <jlayt@kde.org> -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtCore module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - - -#include "qtimezone.h" -#include "qtimezoneprivate_p.h" - -#include <QtCore/qdatastream.h> -#include <QtCore/qdatetime.h> - -#include <qdebug.h> - -#include <algorithm> - -QT_BEGIN_NAMESPACE - -// Create default time zone using appropriate backend -static QTimeZonePrivate *newBackendTimeZone() -{ -#ifdef QT_NO_SYSTEMLOCALE -#if QT_CONFIG(icu) - return new QIcuTimeZonePrivate(); -#else - return new QUtcTimeZonePrivate(); -#endif -#else -#if defined Q_OS_MAC - return new QMacTimeZonePrivate(); -#elif defined(Q_OS_ANDROID) && !defined(Q_OS_ANDROID_EMBEDDED) - return new QAndroidTimeZonePrivate(); -#elif defined(Q_OS_UNIX) || defined(Q_OS_ANDROID_EMBEDDED) - return new QTzTimeZonePrivate(); -#elif QT_CONFIG(icu) - return new QIcuTimeZonePrivate(); -#elif defined Q_OS_WIN - return new QWinTimeZonePrivate(); -#else - return new QUtcTimeZonePrivate(); -#endif // System Locales -#endif // QT_NO_SYSTEMLOCALE -} - -// Create named time zone using appropriate backend -static QTimeZonePrivate *newBackendTimeZone(const QByteArray &ianaId) -{ -#ifdef QT_NO_SYSTEMLOCALE -#if QT_CONFIG(icu) - return new QIcuTimeZonePrivate(ianaId); -#else - return new QUtcTimeZonePrivate(ianaId); -#endif -#else -#if defined Q_OS_MAC - return new QMacTimeZonePrivate(ianaId); -#elif defined(Q_OS_ANDROID) && !defined(Q_OS_ANDROID_EMBEDDED) - return new QAndroidTimeZonePrivate(ianaId); -#elif defined(Q_OS_UNIX) || defined(Q_OS_ANDROID_EMBEDDED) - return new QTzTimeZonePrivate(ianaId); -#elif QT_CONFIG(icu) - return new QIcuTimeZonePrivate(ianaId); -#elif defined Q_OS_WIN - return new QWinTimeZonePrivate(ianaId); -#else - return new QUtcTimeZonePrivate(ianaId); -#endif // System Locales -#endif // QT_NO_SYSTEMLOCALE -} - -class QTimeZoneSingleton -{ -public: - QTimeZoneSingleton() : backend(newBackendTimeZone()) {} - - // The backend_tz is the tz to use in static methods such as availableTimeZoneIds() and - // isTimeZoneIdAvailable() and to create named IANA time zones. This is usually the host - // system, but may be different if the host resources are insufficient or if - // QT_NO_SYSTEMLOCALE is set. A simple UTC backend is used if no alternative is available. - QSharedDataPointer<QTimeZonePrivate> backend; -}; - -Q_GLOBAL_STATIC(QTimeZoneSingleton, global_tz); - -/*! - \class QTimeZone - \inmodule QtCore - \since 5.2 - - \brief The QTimeZone class converts between UTC and local time in a specific - time zone. - - \threadsafe - - This class provides a stateless calculator for time zone conversions - between UTC and the local time in a specific time zone. By default it uses - the host system time zone data to perform these conversions. - - This class is primarily designed for use in QDateTime; most applications - will not need to access this class directly and should instead use - QDateTime with a Qt::TimeSpec of Qt::TimeZone. - - \note For consistency with QDateTime, QTimeZone does not account for leap - seconds. - - \section1 Remarks - - \section2 IANA Time Zone IDs - - QTimeZone uses the IANA time zone IDs as defined in the IANA Time Zone - Database (http://www.iana.org/time-zones). This is to ensure a standard ID - across all supported platforms. Most platforms support the IANA IDs - and the IANA Database natively, but for Windows a mapping is required to - the native IDs. See below for more details. - - The IANA IDs can and do change on a regular basis, and can vary depending - on how recently the host system data was updated. As such you cannot rely - on any given ID existing on any host system. You must use - availableTimeZoneIds() to determine what IANA IDs are available. - - The IANA IDs and database are also know as the Olson IDs and database, - named after their creator. - - \section2 UTC Offset Time Zones - - A default UTC time zone backend is provided which is always guaranteed to - be available. This provides a set of generic Offset From UTC time zones - in the range UTC-14:00 to UTC+14:00. These time zones can be created - using either the standard ISO format names "UTC+00:00" as listed by - availableTimeZoneIds(), or using the number of offset seconds. - - \section2 Windows Time Zones - - Windows native time zone support is severely limited compared to the - standard IANA TZ Database. Windows time zones cover larger geographic - areas and are thus less accurate in their conversions. They also do not - support as much historic conversion data and so may only be accurate for - the current year. - - QTimeZone uses a conversion table derived form the Unicode CLDR data to map - between IANA IDs and Windows IDs. Depending on your version of Windows - and Qt, this table may not be able to provide a valid conversion, in which - "UTC" will be returned. - - QTimeZone provides a public API to use this conversion table. The Windows ID - used is the Windows Registry Key for the time zone which is also the MS - Exchange EWS ID as well, but is different to the Time Zone Name (TZID) and - COD code used by MS Exchange in versions before 2007. - - \section2 System Time Zone - - QTimeZone does not support any concept of a system or default time zone. - If you require a QDateTime that uses the current system time zone at any - given moment then you should use a Qt::TimeSpec of Qt::LocalTime. - - The method systemTimeZoneId() returns the current system IANA time zone - ID which on Unix-like systems will always be correct. On Windows this ID is - translated from the Windows system ID using an internal translation - table and the user's selected country. As a consequence there is a small - chance any Windows install may have IDs not known by Qt, in which case - "UTC" will be returned. - - Creating a new QTimeZone instance using the system time zone ID will only - produce a fixed named copy of the time zone, it will not change if the - system time zone changes. - - \section2 Time Zone Offsets - - The difference between UTC and the local time in a time zone is expressed - as an offset in seconds from UTC, i.e. the number of seconds to add to UTC - to obtain the local time. The total offset is comprised of two component - parts, the standard time offset and the daylight-saving time offset. The - standard time offset is the number of seconds to add to UTC to obtain - standard time in the time zone. The daylight-saving time offset is the - number of seconds to add to the standard time offset to obtain - daylight-saving time (abbreviated DST and sometimes called "daylight time" - or "summer time") in the time zone. - - Note that the standard and DST offsets for a time zone may change over time - as countries have changed DST laws or even their standard time offset. - - \section2 License - - This class includes data obtained from the CLDR data files under the terms - of the Unicode Data Files and Software License. See - \l{Unicode Common Locale Data Repository (CLDR)} for details. - - \sa QDateTime -*/ - -/*! - \enum QTimeZone::anonymous - - Sane UTC offsets range from -14 to +14 hours. - No known zone > 12 hrs West of Greenwich (Baker Island, USA). - No known zone > 14 hrs East of Greenwich (Kiritimati, Christmas Island, Kiribati). - - \value MinUtcOffsetSecs - -14 * 3600, - - \value MaxUtcOffsetSecs - +14 * 3600 -*/ - -/*! - \enum QTimeZone::TimeType - - The type of time zone time, for example when requesting the name. In time - zones that do not apply DST, all three values may return the same result. - - \value StandardTime - The standard time in a time zone, i.e. when Daylight-Saving is not - in effect. - For example when formatting a display name this will show something - like "Pacific Standard Time". - \value DaylightTime - A time when Daylight-Saving is in effect. - For example when formatting a display name this will show something - like "Pacific daylight-saving time". - \value GenericTime - A time which is not specifically Standard or Daylight-Saving time, - either an unknown time or a neutral form. - For example when formatting a display name this will show something - like "Pacific Time". -*/ - -/*! - \enum QTimeZone::NameType - - The type of time zone name. - - \value DefaultName - The default form of the time zone name, e.g. LongName, ShortName or OffsetName - \value LongName - The long form of the time zone name, e.g. "Central European Time" - \value ShortName - The short form of the time zone name, usually an abbreviation, e.g. "CET" - \value OffsetName - The standard ISO offset form of the time zone name, e.g. "UTC+01:00" -*/ - -/*! - \class QTimeZone::OffsetData - \inmodule QtCore - - The time zone offset data for a given moment in time, i.e. the time zone - offsets and abbreviation to use at that moment in time. - - \list - \li OffsetData::atUtc The datetime of the offset data in UTC time. - \li OffsetData::offsetFromUtc The total offset from UTC in effect at the datetime. - \li OffsetData::standardTimeOffset The standard time offset component of the total offset. - \li OffsetData::daylightTimeOffset The DST offset component of the total offset. - \li OffsetData::abbreviation The abbreviation in effect at the datetime. - \endlist - - For example, for time zone "Europe/Berlin" the OffsetDate in standard and DST might be: - - \list - \li atUtc = QDateTime(QDate(2013, 1, 1), QTime(0, 0, 0), Qt::UTC) - \li offsetFromUtc = 3600 - \li standardTimeOffset = 3600 - \li daylightTimeOffset = 0 - \li abbreviation = "CET" - \endlist - - \list - \li atUtc = QDateTime(QDate(2013, 6, 1), QTime(0, 0, 0), Qt::UTC) - \li offsetFromUtc = 7200 - \li standardTimeOffset = 3600 - \li daylightTimeOffset = 3600 - \li abbreviation = "CEST" - \endlist -*/ - -/*! - \typedef QTimeZone::OffsetDataList - - Synonym for QVector<OffsetData>. -*/ - -/*! - Create a null/invalid time zone instance. -*/ - -QTimeZone::QTimeZone() noexcept - : d(0) -{ -} - -/*! - Creates an instance of the requested time zone \a ianaId. - - The ID must be one of the available system IDs otherwise an invalid - time zone will be returned. - - \sa availableTimeZoneIds() -*/ - -QTimeZone::QTimeZone(const QByteArray &ianaId) -{ - // Try and see if it's a valid UTC offset ID, just as quick to try create as look-up - d = new QUtcTimeZonePrivate(ianaId); - // If not a valid UTC offset ID then try create it with the system backend - // Relies on backend not creating valid tz with invalid name - if (!d->isValid()) - d = newBackendTimeZone(ianaId); -} - -/*! - Creates an instance of a time zone with the requested Offset from UTC of - \a offsetSeconds. - - The \a offsetSeconds from UTC must be in the range -14 hours to +14 hours - otherwise an invalid time zone will be returned. -*/ - -QTimeZone::QTimeZone(int offsetSeconds) - : d((offsetSeconds >= MinUtcOffsetSecs && offsetSeconds <= MaxUtcOffsetSecs) - ? new QUtcTimeZonePrivate(offsetSeconds) : nullptr) -{ -} - -/*! - Creates a custom time zone with an ID of \a ianaId and an offset from UTC - of \a offsetSeconds. The \a name will be the name used by displayName() - for the LongName, the \a abbreviation will be used by displayName() for the - ShortName and by abbreviation(), and the optional \a country will be used - by country(). The \a comment is an optional note that may be displayed in - a GUI to assist users in selecting a time zone. - - The \a ianaId must not be one of the available system IDs returned by - availableTimeZoneIds(). The \a offsetSeconds from UTC must be in the range - -14 hours to +14 hours. - - If the custom time zone does not have a specific country then set it to the - default value of QLocale::AnyCountry. -*/ - -QTimeZone::QTimeZone(const QByteArray &ianaId, int offsetSeconds, const QString &name, - const QString &abbreviation, QLocale::Country country, const QString &comment) - : d() -{ - if (!isTimeZoneIdAvailable(ianaId)) - d = new QUtcTimeZonePrivate(ianaId, offsetSeconds, name, abbreviation, country, comment); -} - -/*! - \internal - - Private. Create time zone with given private backend -*/ - -QTimeZone::QTimeZone(QTimeZonePrivate &dd) - : d(&dd) -{ -} - -/*! - Copy constructor, copy \a other to this. -*/ - -QTimeZone::QTimeZone(const QTimeZone &other) - : d(other.d) -{ -} - -/*! - Destroys the time zone. -*/ - -QTimeZone::~QTimeZone() -{ -} - -/*! - \fn QTimeZone::swap(QTimeZone &other) - - Swaps this time zone instance with \a other. This function is very - fast and never fails. -*/ - -/*! - Assignment operator, assign \a other to this. -*/ - -QTimeZone &QTimeZone::operator=(const QTimeZone &other) -{ - d = other.d; - return *this; -} - -/* - \fn void QTimeZone::swap(QTimeZone &other) - - Swaps this timezone with \a other. This function is very fast and - never fails. -*/ - -/*! - \fn QTimeZone &QTimeZone::operator=(QTimeZone &&other) - - Move-assigns \a other to this QTimeZone instance, transferring the - ownership of the managed pointer to this instance. -*/ - -/*! - Returns \c true if this time zone is equal to the \a other time zone. -*/ - -bool QTimeZone::operator==(const QTimeZone &other) const -{ - if (d && other.d) - return (*d == *other.d); - else - return (d == other.d); -} - -/*! - Returns \c true if this time zone is not equal to the \a other time zone. -*/ - -bool QTimeZone::operator!=(const QTimeZone &other) const -{ - if (d && other.d) - return (*d != *other.d); - else - return (d != other.d); -} - -/*! - Returns \c true if this time zone is valid. -*/ - -bool QTimeZone::isValid() const -{ - if (d) - return d->isValid(); - else - return false; -} - -/*! - Returns the IANA ID for the time zone. - - IANA IDs are used on all platforms. On Windows these are translated - from the Windows ID into the closest IANA ID for the time zone and country. -*/ - -QByteArray QTimeZone::id() const -{ - if (d) - return d->id(); - else - return QByteArray(); -} - -/*! - Returns the country for the time zone. -*/ - -QLocale::Country QTimeZone::country() const -{ - if (isValid()) - return d->country(); - else - return QLocale::AnyCountry; -} - -/*! - Returns any comment for the time zone. - - A comment may be provided by the host platform to assist users in - choosing the correct time zone. Depending on the platform this may not - be localized. -*/ - -QString QTimeZone::comment() const -{ - if (isValid()) - return d->comment(); - else - return QString(); -} - -/*! - Returns the localized time zone display name at the given \a atDateTime - for the given \a nameType in the given \a locale. The \a nameType and - \a locale requested may not be supported on all platforms, in which case - the best available option will be returned. - - If the \a locale is not provided then the application default locale will - be used. - - The display name may change depending on DST or historical events. - - \sa abbreviation() -*/ - -QString QTimeZone::displayName(const QDateTime &atDateTime, NameType nameType, - const QLocale &locale) const -{ - if (isValid()) - return d->displayName(atDateTime.toMSecsSinceEpoch(), nameType, locale); - else - return QString(); -} - -/*! - Returns the localized time zone display name for the given \a timeType - and \a nameType in the given \a locale. The \a nameType and \a locale - requested may not be supported on all platforms, in which case the best - available option will be returned. - - If the \a locale is not provided then the application default locale will - be used. - - Where the time zone display names have changed over time then the most - recent names will be used. - - \sa abbreviation() -*/ - -QString QTimeZone::displayName(TimeType timeType, NameType nameType, - const QLocale &locale) const -{ - if (isValid()) - return d->displayName(timeType, nameType, locale); - else - return QString(); -} - -/*! - Returns the time zone abbreviation at the given \a atDateTime. The - abbreviation may change depending on DST or even historical events. - - Note that the abbreviation is not guaranteed to be unique to this time zone - and should not be used in place of the ID or display name. - - \sa displayName() -*/ - -QString QTimeZone::abbreviation(const QDateTime &atDateTime) const -{ - if (isValid()) - return d->abbreviation(atDateTime.toMSecsSinceEpoch()); - else - return QString(); -} - -/*! - Returns the total effective offset at the given \a atDateTime, i.e. the - number of seconds to add to UTC to obtain the local time. This includes - any DST offset that may be in effect, i.e. it is the sum of - standardTimeOffset() and daylightTimeOffset() for the given datetime. - - For example, for the time zone "Europe/Berlin" the standard time offset is - +3600 seconds and the DST offset is +3600 seconds. During standard time - offsetFromUtc() will return +3600 (UTC+01:00), and during DST it will - return +7200 (UTC+02:00). - - \sa standardTimeOffset(), daylightTimeOffset() -*/ - -int QTimeZone::offsetFromUtc(const QDateTime &atDateTime) const -{ - if (isValid()) - return d->offsetFromUtc(atDateTime.toMSecsSinceEpoch()); - else - return 0; -} - -/*! - Returns the standard time offset at the given \a atDateTime, i.e. the - number of seconds to add to UTC to obtain the local Standard Time. This - excludes any DST offset that may be in effect. - - For example, for the time zone "Europe/Berlin" the standard time offset is - +3600 seconds. During both standard and DST offsetFromUtc() will return - +3600 (UTC+01:00). - - \sa offsetFromUtc(), daylightTimeOffset() -*/ - -int QTimeZone::standardTimeOffset(const QDateTime &atDateTime) const -{ - if (isValid()) - return d->standardTimeOffset(atDateTime.toMSecsSinceEpoch()); - else - return 0; -} - -/*! - Returns the daylight-saving time offset at the given \a atDateTime, - i.e. the number of seconds to add to the standard time offset to obtain the - local daylight-saving time. - - For example, for the time zone "Europe/Berlin" the DST offset is +3600 - seconds. During standard time daylightTimeOffset() will return 0, and when - daylight-saving is in effect it will return +3600. - - \sa offsetFromUtc(), standardTimeOffset() -*/ - -int QTimeZone::daylightTimeOffset(const QDateTime &atDateTime) const -{ - if (hasDaylightTime()) - return d->daylightTimeOffset(atDateTime.toMSecsSinceEpoch()); - else - return 0; -} - -/*! - Returns \c true if the time zone has practiced daylight-saving at any time. - - \sa isDaylightTime(), daylightTimeOffset() -*/ - -bool QTimeZone::hasDaylightTime() const -{ - if (isValid()) - return d->hasDaylightTime(); - else - return false; -} - -/*! - Returns \c true if daylight-saving was in effect at the given \a atDateTime. - - \sa hasDaylightTime(), daylightTimeOffset() -*/ - -bool QTimeZone::isDaylightTime(const QDateTime &atDateTime) const -{ - if (hasDaylightTime()) - return d->isDaylightTime(atDateTime.toMSecsSinceEpoch()); - else - return false; -} - -/*! - Returns the effective offset details at the given \a forDateTime. This is - the equivalent of calling offsetFromUtc(), abbreviation(), etc individually but is - more efficient. - - \sa offsetFromUtc(), standardTimeOffset(), daylightTimeOffset(), abbreviation() -*/ - -QTimeZone::OffsetData QTimeZone::offsetData(const QDateTime &forDateTime) const -{ - if (hasTransitions()) - return QTimeZonePrivate::toOffsetData(d->data(forDateTime.toMSecsSinceEpoch())); - else - return QTimeZonePrivate::invalidOffsetData(); -} - -/*! - Returns \c true if the system backend supports obtaining transitions. - - Transitions are changes in the time-zone: these happen when DST turns on or - off and when authorities alter the offsets for the time-zone. - - \sa nextTransition(), previousTransition(), transitions() -*/ - -bool QTimeZone::hasTransitions() const -{ - if (isValid()) - return d->hasTransitions(); - else - return false; -} - -/*! - Returns the first time zone Transition after the given \a afterDateTime. - This is most useful when you have a Transition time and wish to find the - Transition after it. - - If there is no transition after the given \a afterDateTime then an invalid - OffsetData will be returned with an invalid QDateTime. - - The given \a afterDateTime is exclusive. - - \sa hasTransitions(), previousTransition(), transitions() -*/ - -QTimeZone::OffsetData QTimeZone::nextTransition(const QDateTime &afterDateTime) const -{ - if (hasTransitions()) - return QTimeZonePrivate::toOffsetData(d->nextTransition(afterDateTime.toMSecsSinceEpoch())); - else - return QTimeZonePrivate::invalidOffsetData(); -} - -/*! - Returns the first time zone Transition before the given \a beforeDateTime. - This is most useful when you have a Transition time and wish to find the - Transition before it. - - If there is no transition before the given \a beforeDateTime then an invalid - OffsetData will be returned with an invalid QDateTime. - - The given \a beforeDateTime is exclusive. - - \sa hasTransitions(), nextTransition(), transitions() -*/ - -QTimeZone::OffsetData QTimeZone::previousTransition(const QDateTime &beforeDateTime) const -{ - if (hasTransitions()) - return QTimeZonePrivate::toOffsetData(d->previousTransition(beforeDateTime.toMSecsSinceEpoch())); - else - return QTimeZonePrivate::invalidOffsetData(); -} - -/*! - Returns a list of all time zone transitions between the given datetimes. - - The given \a fromDateTime and \a toDateTime are inclusive. - - \sa hasTransitions(), nextTransition(), previousTransition() -*/ - -QTimeZone::OffsetDataList QTimeZone::transitions(const QDateTime &fromDateTime, - const QDateTime &toDateTime) const -{ - OffsetDataList list; - if (hasTransitions()) { - const QTimeZonePrivate::DataList plist = d->transitions(fromDateTime.toMSecsSinceEpoch(), - toDateTime.toMSecsSinceEpoch()); - list.reserve(plist.count()); - for (const QTimeZonePrivate::Data &pdata : plist) - list.append(QTimeZonePrivate::toOffsetData(pdata)); - } - return list; -} - -// Static methods - -/*! - Returns the current system time zone IANA ID. - - On Windows this ID is translated from the Windows ID using an internal - translation table and the user's selected country. As a consequence there - is a small chance any Windows install may have IDs not known by Qt, in - which case "UTC" will be returned. -*/ - -QByteArray QTimeZone::systemTimeZoneId() -{ - return global_tz->backend->systemTimeZoneId(); -} - -/*! - \since 5.5 - Returns a QTimeZone object that refers to the local system time, as - specified by systemTimeZoneId(). - - \sa utc() -*/ -QTimeZone QTimeZone::systemTimeZone() -{ - return QTimeZone(QTimeZone::systemTimeZoneId()); -} - -/*! - \since 5.5 - Returns a QTimeZone object that refers to UTC (Universal Time Coordinated). - - \sa systemTimeZone() -*/ -QTimeZone QTimeZone::utc() -{ - return QTimeZone(QTimeZonePrivate::utcQByteArray()); -} - -/*! - Returns \c true if a given time zone \a ianaId is available on this system. - - \sa availableTimeZoneIds() -*/ - -bool QTimeZone::isTimeZoneIdAvailable(const QByteArray &ianaId) -{ - // isValidId is not strictly required, but faster to weed out invalid - // IDs as availableTimeZoneIds() may be slow - if (!QTimeZonePrivate::isValidId(ianaId)) - return false; - return QUtcTimeZonePrivate().isTimeZoneIdAvailable(ianaId) || - global_tz->backend->isTimeZoneIdAvailable(ianaId); -} - -static QList<QByteArray> set_union(const QList<QByteArray> &l1, const QList<QByteArray> &l2) -{ - QList<QByteArray> result; - result.reserve(l1.size() + l2.size()); - std::set_union(l1.begin(), l1.end(), - l2.begin(), l2.end(), - std::back_inserter(result)); - return result; -} - -/*! - Returns a list of all available IANA time zone IDs on this system. - - \sa isTimeZoneIdAvailable() -*/ - -QList<QByteArray> QTimeZone::availableTimeZoneIds() -{ - return set_union(QUtcTimeZonePrivate().availableTimeZoneIds(), - global_tz->backend->availableTimeZoneIds()); -} - -/*! - Returns a list of all available IANA time zone IDs for a given \a country. - - As a special case, a \a country of Qt::AnyCountry returns those time zones - that do not have any country related to them, such as UTC. If you require - a list of all time zone IDs for all countries then use the standard - availableTimeZoneIds() method. - - \sa isTimeZoneIdAvailable() -*/ - -QList<QByteArray> QTimeZone::availableTimeZoneIds(QLocale::Country country) -{ - return set_union(QUtcTimeZonePrivate().availableTimeZoneIds(country), - global_tz->backend->availableTimeZoneIds(country)); -} - -/*! - Returns a list of all available IANA time zone IDs with a given standard - time offset of \a offsetSeconds. - - \sa isTimeZoneIdAvailable() -*/ - -QList<QByteArray> QTimeZone::availableTimeZoneIds(int offsetSeconds) -{ - return set_union(QUtcTimeZonePrivate().availableTimeZoneIds(offsetSeconds), - global_tz->backend->availableTimeZoneIds(offsetSeconds)); -} - -/*! - Returns the Windows ID equivalent to the given \a ianaId. - - \sa windowsIdToDefaultIanaId(), windowsIdToIanaIds() -*/ - -QByteArray QTimeZone::ianaIdToWindowsId(const QByteArray &ianaId) -{ - return QTimeZonePrivate::ianaIdToWindowsId(ianaId); -} - -/*! - Returns the default IANA ID for a given \a windowsId. - - Because a Windows ID can cover several IANA IDs in several different - countries, this function returns the most frequently used IANA ID with no - regard for the country and should thus be used with care. It is usually - best to request the default for a specific country. - - \sa ianaIdToWindowsId(), windowsIdToIanaIds() -*/ - -QByteArray QTimeZone::windowsIdToDefaultIanaId(const QByteArray &windowsId) -{ - return QTimeZonePrivate::windowsIdToDefaultIanaId(windowsId); -} - -/*! - Returns the default IANA ID for a given \a windowsId and \a country. - - Because a Windows ID can cover several IANA IDs within a given country, - the most frequently used IANA ID in that country is returned. - - As a special case, QLocale::AnyCountry returns the default of those IANA IDs - that do not have any specific country. - - \sa ianaIdToWindowsId(), windowsIdToIanaIds() -*/ - -QByteArray QTimeZone::windowsIdToDefaultIanaId(const QByteArray &windowsId, - QLocale::Country country) -{ - return QTimeZonePrivate::windowsIdToDefaultIanaId(windowsId, country); -} - -/*! - Returns all the IANA IDs for a given \a windowsId. - - The returned list is sorted alphabetically. - - \sa ianaIdToWindowsId(), windowsIdToDefaultIanaId() -*/ - -QList<QByteArray> QTimeZone::windowsIdToIanaIds(const QByteArray &windowsId) -{ - return QTimeZonePrivate::windowsIdToIanaIds(windowsId); -} - -/*! - Returns all the IANA IDs for a given \a windowsId and \a country. - - As a special case QLocale::AnyCountry returns those IANA IDs that do - not have any specific country. - - The returned list is in order of frequency of usage, i.e. larger zones - within a country are listed first. - - \sa ianaIdToWindowsId(), windowsIdToDefaultIanaId() -*/ - -QList<QByteArray> QTimeZone::windowsIdToIanaIds(const QByteArray &windowsId, - QLocale::Country country) -{ - return QTimeZonePrivate::windowsIdToIanaIds(windowsId, country); -} - -#ifndef QT_NO_DATASTREAM -QDataStream &operator<<(QDataStream &ds, const QTimeZone &tz) -{ - tz.d->serialize(ds); - return ds; -} - -QDataStream &operator>>(QDataStream &ds, QTimeZone &tz) -{ - QString ianaId; - ds >> ianaId; - if (ianaId == QLatin1String("OffsetFromUtc")) { - int utcOffset; - QString name; - QString abbreviation; - int country; - QString comment; - ds >> ianaId >> utcOffset >> name >> abbreviation >> country >> comment; - // Try creating as a system timezone, which succeeds (producing a valid - // zone) iff ianaId is valid; we can then ignore the other data. - tz = QTimeZone(ianaId.toUtf8()); - // If not, then construct a custom timezone using all the saved values: - if (!tz.isValid()) - tz = QTimeZone(ianaId.toUtf8(), utcOffset, name, abbreviation, - QLocale::Country(country), comment); - } else { - tz = QTimeZone(ianaId.toUtf8()); - } - return ds; -} -#endif // QT_NO_DATASTREAM - -#ifndef QT_NO_DEBUG_STREAM -QDebug operator<<(QDebug dbg, const QTimeZone &tz) -{ - QDebugStateSaver saver(dbg); - //TODO Include backend and data version details? - dbg.nospace() << "QTimeZone(" << QString::fromUtf8(tz.id()) << ')'; - return dbg; -} -#endif - -QT_END_NAMESPACE diff --git a/src/corelib/tools/qtimezone.h b/src/corelib/tools/qtimezone.h deleted file mode 100644 index 62ecee49bb..0000000000 --- a/src/corelib/tools/qtimezone.h +++ /dev/null @@ -1,188 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2013 John Layt <jlayt@kde.org> -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtCore module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - - -#ifndef QTIMEZONE_H -#define QTIMEZONE_H - -#include <QtCore/qshareddata.h> -#include <QtCore/qlocale.h> -#include <QtCore/qdatetime.h> - -QT_REQUIRE_CONFIG(timezone); - -#if (defined(Q_OS_DARWIN) || defined(Q_QDOC)) && !defined(QT_NO_SYSTEMLOCALE) -Q_FORWARD_DECLARE_CF_TYPE(CFTimeZone); -Q_FORWARD_DECLARE_OBJC_CLASS(NSTimeZone); -#endif - -QT_BEGIN_NAMESPACE - -class QTimeZonePrivate; - -class Q_CORE_EXPORT QTimeZone -{ -public: - // Sane UTC offsets range from -14 to +14 hours: - enum { - // No known zone > 12 hrs West of Greenwich (Baker Island, USA) - MinUtcOffsetSecs = -14 * 3600, - // No known zone > 14 hrs East of Greenwich (Kiritimati, Christmas Island, Kiribati) - MaxUtcOffsetSecs = +14 * 3600 - }; - - enum TimeType { - StandardTime = 0, - DaylightTime = 1, - GenericTime = 2 - }; - - enum NameType { - DefaultName = 0, - LongName = 1, - ShortName = 2, - OffsetName = 3 - }; - - struct OffsetData { - QString abbreviation; - QDateTime atUtc; - int offsetFromUtc; - int standardTimeOffset; - int daylightTimeOffset; - }; - typedef QVector<OffsetData> OffsetDataList; - - QTimeZone() noexcept; - explicit QTimeZone(const QByteArray &ianaId); - explicit QTimeZone(int offsetSeconds); - /*implicit*/ QTimeZone(const QByteArray &zoneId, int offsetSeconds, const QString &name, - const QString &abbreviation, QLocale::Country country = QLocale::AnyCountry, - const QString &comment = QString()); - QTimeZone(const QTimeZone &other); - ~QTimeZone(); - - QTimeZone &operator=(const QTimeZone &other); - QTimeZone &operator=(QTimeZone &&other) noexcept { swap(other); return *this; } - - void swap(QTimeZone &other) noexcept - { d.swap(other.d); } - - bool operator==(const QTimeZone &other) const; - bool operator!=(const QTimeZone &other) const; - - bool isValid() const; - - QByteArray id() const; - QLocale::Country country() const; - QString comment() const; - - QString displayName(const QDateTime &atDateTime, - QTimeZone::NameType nameType = QTimeZone::DefaultName, - const QLocale &locale = QLocale()) const; - QString displayName(QTimeZone::TimeType timeType, - QTimeZone::NameType nameType = QTimeZone::DefaultName, - const QLocale &locale = QLocale()) const; - QString abbreviation(const QDateTime &atDateTime) const; - - int offsetFromUtc(const QDateTime &atDateTime) const; - int standardTimeOffset(const QDateTime &atDateTime) const; - int daylightTimeOffset(const QDateTime &atDateTime) const; - - bool hasDaylightTime() const; - bool isDaylightTime(const QDateTime &atDateTime) const; - - OffsetData offsetData(const QDateTime &forDateTime) const; - - bool hasTransitions() const; - OffsetData nextTransition(const QDateTime &afterDateTime) const; - OffsetData previousTransition(const QDateTime &beforeDateTime) const; - OffsetDataList transitions(const QDateTime &fromDateTime, const QDateTime &toDateTime) const; - - static QByteArray systemTimeZoneId(); - static QTimeZone systemTimeZone(); - static QTimeZone utc(); - - static bool isTimeZoneIdAvailable(const QByteArray &ianaId); - - static QList<QByteArray> availableTimeZoneIds(); - static QList<QByteArray> availableTimeZoneIds(QLocale::Country country); - static QList<QByteArray> availableTimeZoneIds(int offsetSeconds); - - static QByteArray ianaIdToWindowsId(const QByteArray &ianaId); - static QByteArray windowsIdToDefaultIanaId(const QByteArray &windowsId); - static QByteArray windowsIdToDefaultIanaId(const QByteArray &windowsId, - QLocale::Country country); - static QList<QByteArray> windowsIdToIanaIds(const QByteArray &windowsId); - static QList<QByteArray> windowsIdToIanaIds(const QByteArray &windowsId, - QLocale::Country country); - -#if (defined(Q_OS_DARWIN) || defined(Q_QDOC)) && !defined(QT_NO_SYSTEMLOCALE) - static QTimeZone fromCFTimeZone(CFTimeZoneRef timeZone); - CFTimeZoneRef toCFTimeZone() const Q_DECL_CF_RETURNS_RETAINED; - static QTimeZone fromNSTimeZone(const NSTimeZone *timeZone); - NSTimeZone *toNSTimeZone() const Q_DECL_NS_RETURNS_AUTORELEASED; -#endif - -private: - QTimeZone(QTimeZonePrivate &dd); -#ifndef QT_NO_DATASTREAM - friend Q_CORE_EXPORT QDataStream &operator<<(QDataStream &ds, const QTimeZone &tz); -#endif - friend class QTimeZonePrivate; - friend class QDateTime; - friend class QDateTimePrivate; - QSharedDataPointer<QTimeZonePrivate> d; -}; - -Q_DECLARE_TYPEINFO(QTimeZone::OffsetData, Q_MOVABLE_TYPE); -Q_DECLARE_SHARED(QTimeZone) - -#ifndef QT_NO_DATASTREAM -Q_CORE_EXPORT QDataStream &operator<<(QDataStream &ds, const QTimeZone &tz); -Q_CORE_EXPORT QDataStream &operator>>(QDataStream &ds, QTimeZone &tz); -#endif - -#ifndef QT_NO_DEBUG_STREAM -Q_CORE_EXPORT QDebug operator<<(QDebug dbg, const QTimeZone &tz); -#endif - -QT_END_NAMESPACE - -#endif // QTIMEZONE_H diff --git a/src/corelib/tools/qtimezoneprivate.cpp b/src/corelib/tools/qtimezoneprivate.cpp deleted file mode 100644 index 569b343187..0000000000 --- a/src/corelib/tools/qtimezoneprivate.cpp +++ /dev/null @@ -1,926 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2013 John Layt <jlayt@kde.org> -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtCore module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - - -#include "qtimezone.h" -#include "qtimezoneprivate_p.h" -#include "qtimezoneprivate_data_p.h" - -#include <qdatastream.h> -#include <qdebug.h> - -#include <algorithm> - -QT_BEGIN_NAMESPACE - -/* - Static utilities for looking up Windows ID tables -*/ - -static const int windowsDataTableSize = sizeof(windowsDataTable) / sizeof(QWindowsData) - 1; -static const int zoneDataTableSize = sizeof(zoneDataTable) / sizeof(QZoneData) - 1; -static const int utcDataTableSize = sizeof(utcDataTable) / sizeof(QUtcData) - 1; - - -static const QZoneData *zoneData(quint16 index) -{ - Q_ASSERT(index < zoneDataTableSize); - return &zoneDataTable[index]; -} - -static const QWindowsData *windowsData(quint16 index) -{ - Q_ASSERT(index < windowsDataTableSize); - return &windowsDataTable[index]; -} - -static const QUtcData *utcData(quint16 index) -{ - Q_ASSERT(index < utcDataTableSize); - return &utcDataTable[index]; -} - -// Return the Windows ID literal for a given QWindowsData -static QByteArray windowsId(const QWindowsData *windowsData) -{ - return (windowsIdData + windowsData->windowsIdIndex); -} - -// Return the IANA ID literal for a given QWindowsData -static QByteArray ianaId(const QWindowsData *windowsData) -{ - return (ianaIdData + windowsData->ianaIdIndex); -} - -// Return the IANA ID literal for a given QZoneData -static QByteArray ianaId(const QZoneData *zoneData) -{ - return (ianaIdData + zoneData->ianaIdIndex); -} - -static QByteArray utcId(const QUtcData *utcData) -{ - return (ianaIdData + utcData->ianaIdIndex); -} - -static quint16 toWindowsIdKey(const QByteArray &winId) -{ - for (quint16 i = 0; i < windowsDataTableSize; ++i) { - const QWindowsData *data = windowsData(i); - if (windowsId(data) == winId) - return data->windowsIdKey; - } - return 0; -} - -static QByteArray toWindowsIdLiteral(quint16 windowsIdKey) -{ - for (quint16 i = 0; i < windowsDataTableSize; ++i) { - const QWindowsData *data = windowsData(i); - if (data->windowsIdKey == windowsIdKey) - return windowsId(data); - } - return QByteArray(); -} - -/* - Base class implementing common utility routines, only intantiate for a null tz. -*/ - -QTimeZonePrivate::QTimeZonePrivate() -{ -} - -QTimeZonePrivate::QTimeZonePrivate(const QTimeZonePrivate &other) - : QSharedData(other), m_id(other.m_id) -{ -} - -QTimeZonePrivate::~QTimeZonePrivate() -{ -} - -QTimeZonePrivate *QTimeZonePrivate::clone() const -{ - return new QTimeZonePrivate(*this); -} - -bool QTimeZonePrivate::operator==(const QTimeZonePrivate &other) const -{ - // TODO Too simple, but need to solve problem of comparing different derived classes - // Should work for all System and ICU classes as names guaranteed unique, but not for Simple. - // Perhaps once all classes have working transitions can compare full list? - return (m_id == other.m_id); -} - -bool QTimeZonePrivate::operator!=(const QTimeZonePrivate &other) const -{ - return !(*this == other); -} - -bool QTimeZonePrivate::isValid() const -{ - return !m_id.isEmpty(); -} - -QByteArray QTimeZonePrivate::id() const -{ - return m_id; -} - -QLocale::Country QTimeZonePrivate::country() const -{ - // Default fall-back mode, use the zoneTable to find Region of known Zones - for (int i = 0; i < zoneDataTableSize; ++i) { - const QZoneData *data = zoneData(i); - if (ianaId(data).split(' ').contains(m_id)) - return (QLocale::Country)data->country; - } - return QLocale::AnyCountry; -} - -QString QTimeZonePrivate::comment() const -{ - return QString(); -} - -QString QTimeZonePrivate::displayName(qint64 atMSecsSinceEpoch, - QTimeZone::NameType nameType, - const QLocale &locale) const -{ - if (nameType == QTimeZone::OffsetName) - return isoOffsetFormat(offsetFromUtc(atMSecsSinceEpoch)); - - if (isDaylightTime(atMSecsSinceEpoch)) - return displayName(QTimeZone::DaylightTime, nameType, locale); - else - return displayName(QTimeZone::StandardTime, nameType, locale); -} - -QString QTimeZonePrivate::displayName(QTimeZone::TimeType timeType, - QTimeZone::NameType nameType, - const QLocale &locale) const -{ - Q_UNUSED(timeType) - Q_UNUSED(nameType) - Q_UNUSED(locale) - return QString(); -} - -QString QTimeZonePrivate::abbreviation(qint64 atMSecsSinceEpoch) const -{ - Q_UNUSED(atMSecsSinceEpoch) - return QString(); -} - -int QTimeZonePrivate::offsetFromUtc(qint64 atMSecsSinceEpoch) const -{ - return standardTimeOffset(atMSecsSinceEpoch) + daylightTimeOffset(atMSecsSinceEpoch); -} - -int QTimeZonePrivate::standardTimeOffset(qint64 atMSecsSinceEpoch) const -{ - Q_UNUSED(atMSecsSinceEpoch) - return invalidSeconds(); -} - -int QTimeZonePrivate::daylightTimeOffset(qint64 atMSecsSinceEpoch) const -{ - Q_UNUSED(atMSecsSinceEpoch) - return invalidSeconds(); -} - -bool QTimeZonePrivate::hasDaylightTime() const -{ - return false; -} - -bool QTimeZonePrivate::isDaylightTime(qint64 atMSecsSinceEpoch) const -{ - Q_UNUSED(atMSecsSinceEpoch) - return false; -} - -QTimeZonePrivate::Data QTimeZonePrivate::data(qint64 forMSecsSinceEpoch) const -{ - Q_UNUSED(forMSecsSinceEpoch) - return invalidData(); -} - -// Private only method for use by QDateTime to convert local msecs to epoch msecs -QTimeZonePrivate::Data QTimeZonePrivate::dataForLocalTime(qint64 forLocalMSecs, int hint) const -{ - if (!hasDaylightTime()) // No DST means same offset for all local msecs - return data(forLocalMSecs - standardTimeOffset(forLocalMSecs) * 1000); - - /* - We need a UTC time at which to ask for the offset, in order to be able to - add that offset to forLocalMSecs, to get the UTC time we - need. Fortunately, no time-zone offset is more than 14 hours; and DST - transitions happen (much) more than thirty-two hours apart. So sampling - offset sixteen hours each side gives us information we can be sure - brackets the correct time and at most one DST transition. - */ - const qint64 sixteenHoursInMSecs(16 * 3600 * 1000); - Q_STATIC_ASSERT(-sixteenHoursInMSecs / 1000 < QTimeZone::MinUtcOffsetSecs - && sixteenHoursInMSecs / 1000 > QTimeZone::MaxUtcOffsetSecs); - const qint64 recent = forLocalMSecs - sixteenHoursInMSecs; - const qint64 imminent = forLocalMSecs + sixteenHoursInMSecs; - /* - Offsets are Local - UTC, positive to the east of Greenwich, negative to - the west; DST offset always exceeds standard offset, when DST applies. - When we have offsets on either side of a transition, the lower one is - standard, the higher is DST. - - Non-DST transitions (jurisdictions changing time-zone and time-zones - changing their standard offset, typically) are described below as if they - were DST transitions (since these are more usual and familiar); the code - mostly concerns itself with offsets from UTC, described in terms of the - common case for changes in that. If there is no actual change in offset - (e.g. a DST transition cancelled by a standard offset change), this code - should handle it gracefully; without transitions, it'll see early == late - and take the easy path; with transitions, tran and nextTran get the - correct UTC time as atMSecsSinceEpoch so comparing to nextStart selects - the right one. In all other cases, the transition changes offset and the - reasoning that applies to DST applies just the same. Aside from hinting, - the only thing that looks at DST-ness at all, other than inferred from - offset changes, is the case without transition data handling an invalid - time in the gap that a transition passed over. - - The handling of hint (see below) is apt to go wrong in non-DST - transitions. There isn't really a great deal we can hope to do about that - without adding yet more unreliable complexity to the heuristics in use for - already obscure corner-cases. - */ - - /* - The hint (really a QDateTimePrivate::DaylightStatus) is > 0 if caller - thinks we're in DST, 0 if in standard. A value of -2 means never-DST, so - should have been handled above; if it slips through, it's wrong but we - should probably treat it as standard anyway (never-DST means - always-standard, after all). If the hint turns out to be wrong, fall back - on trying the other possibility: which makes it harmless to treat -1 - (meaning unknown) as standard (i.e. try standard first, then try DST). In - practice, away from a transition, the only difference hint makes is to - which candidate we try first: if the hint is wrong (or unknown and - standard fails), we'll try the other candidate and it'll work. - - For the obscure (and invalid) case where forLocalMSecs falls in a - spring-forward's missing hour, a common case is that we started with a - date/time for which the hint was valid and adjusted it naively; for that - case, we should correct the adjustment by shunting across the transition - into where hint is wrong. So half-way through the gap, arrived at from - the DST side, should be read as an hour earlier, in standard time; but, if - arrived at from the standard side, should be read as an hour later, in - DST. (This shall be wrong in some cases; for example, when a country - changes its transition dates and changing a date/time by more than six - months lands it on a transition. However, these cases are even more - obscure than those where the heuristic is good.) - */ - - if (hasTransitions()) { - /* - We have transitions. - - Each transition gives the offsets to use until the next; so we need the - most recent transition before the time forLocalMSecs describes. If it - describes a time *in* a transition, we'll need both that transition and - the one before it. So find one transition that's probably after (and not - much before, otherwise) and another that's definitely before, then work - out which one to use. When both or neither work on forLocalMSecs, use - hint to disambiguate. - */ - - // Get a transition definitely before the local MSecs; usually all we need. - // Only around the transition times might we need another. - Data tran = previousTransition(recent); - Q_ASSERT(forLocalMSecs < 0 || // Pre-epoch TZ info may be unavailable - forLocalMSecs - tran.offsetFromUtc * 1000 >= tran.atMSecsSinceEpoch); - Data nextTran = nextTransition(tran.atMSecsSinceEpoch); - /* - Now walk those forward until they bracket forLocalMSecs with transitions. - - One of the transitions should then be telling us the right offset to use. - In a transition, we need the transition before it (to describe the run-up - to the transition) and the transition itself; so we need to stop when - nextTran is that transition. - */ - while (nextTran.atMSecsSinceEpoch != invalidMSecs() - && forLocalMSecs > nextTran.atMSecsSinceEpoch + nextTran.offsetFromUtc * 1000) { - Data newTran = nextTransition(nextTran.atMSecsSinceEpoch); - if (newTran.atMSecsSinceEpoch == invalidMSecs() - || newTran.atMSecsSinceEpoch + newTran.offsetFromUtc * 1000 > imminent) { - // Definitely not a relevant tansition: too far in the future. - break; - } - tran = nextTran; - nextTran = newTran; - } - - // Check we do *really* have transitions for this zone: - if (tran.atMSecsSinceEpoch != invalidMSecs()) { - - /* - So now tran is definitely before and nextTran is either after or only - slightly before. One is standard time; we interpret the other as DST - (although the transition might in fact by a change in standard offset). Our - hint tells us which of those to use (defaulting to standard if no hint): try - it first; if that fails, try the other; if both fail, life's tricky. - */ - Q_ASSERT(forLocalMSecs < 0 - || forLocalMSecs - tran.offsetFromUtc * 1000 > tran.atMSecsSinceEpoch); - const qint64 nextStart = nextTran.atMSecsSinceEpoch; - // Work out the UTC values it might make sense to return: - nextTran.atMSecsSinceEpoch = forLocalMSecs - nextTran.offsetFromUtc * 1000; - tran.atMSecsSinceEpoch = forLocalMSecs - tran.offsetFromUtc * 1000; - - // If both or neither have zero DST, treat the one with lower offset as standard: - const bool nextIsDst = !nextTran.daylightTimeOffset == !tran.daylightTimeOffset - ? tran.offsetFromUtc < nextTran.offsetFromUtc : nextTran.daylightTimeOffset; - // If that agrees with hint > 0, our first guess is to use nextTran; else tran. - const bool nextFirst = nextIsDst == (hint > 0) && nextStart != invalidMSecs(); - for (int i = 0; i < 2; i++) { - /* - On the first pass, the case we consider is what hint told us to expect - (except when hint was -1 and didn't actually tell us what to expect), - so it's likely right. We only get a second pass if the first failed, - by which time the second case, that we're trying, is likely right. If - an overwhelming majority of calls have hint == -1, the Q_LIKELY here - shall be wrong half the time; otherwise, its errors shall be rarer - than that. - */ - if (nextFirst ? i == 0 : i) { - Q_ASSERT(nextStart != invalidMSecs()); - if (Q_LIKELY(nextStart <= nextTran.atMSecsSinceEpoch)) - return nextTran; - } else { - // If next is invalid, nextFirst is false, to route us here first: - if (nextStart == invalidMSecs() || Q_LIKELY(nextStart > tran.atMSecsSinceEpoch)) - return tran; - } - } - - /* - Neither is valid (e.g. in a spring-forward's gap) and - nextTran.atMSecsSinceEpoch < nextStart <= tran.atMSecsSinceEpoch, so - 0 < tran.atMSecsSinceEpoch - nextTran.atMSecsSinceEpoch - = (nextTran.offsetFromUtc - tran.offsetFromUtc) * 1000 - */ - int dstStep = (nextTran.offsetFromUtc - tran.offsetFromUtc) * 1000; - Q_ASSERT(dstStep > 0); // How else could we get here ? - if (nextFirst) { // hint thought we needed nextTran, so use tran - tran.atMSecsSinceEpoch -= dstStep; - return tran; - } - nextTran.atMSecsSinceEpoch += dstStep; - return nextTran; - } - // System has transitions but not for this zone. - // Try falling back to offsetFromUtc - } - - /* Bracket and refine to discover offset. */ - qint64 utcEpochMSecs; - - int early = offsetFromUtc(recent); - int late = offsetFromUtc(imminent); - if (Q_LIKELY(early == late)) { // > 99% of the time - utcEpochMSecs = forLocalMSecs - early * 1000; - } else { - // Close to a DST transition: early > late is near a fall-back, - // early < late is near a spring-forward. - const int offsetInDst = qMax(early, late); - const int offsetInStd = qMin(early, late); - // Candidate values for utcEpochMSecs (if forLocalMSecs is valid): - const qint64 forDst = forLocalMSecs - offsetInDst * 1000; - const qint64 forStd = forLocalMSecs - offsetInStd * 1000; - // Best guess at the answer: - const qint64 hinted = hint > 0 ? forDst : forStd; - if (Q_LIKELY(offsetFromUtc(hinted) == (hint > 0 ? offsetInDst : offsetInStd))) { - utcEpochMSecs = hinted; - } else if (hint <= 0 && offsetFromUtc(forDst) == offsetInDst) { - utcEpochMSecs = forDst; - } else if (hint > 0 && offsetFromUtc(forStd) == offsetInStd) { - utcEpochMSecs = forStd; - } else { - // Invalid forLocalMSecs: in spring-forward gap. - const int dstStep = daylightTimeOffset(early < late ? imminent : recent) * 1000; - Q_ASSERT(dstStep); // There can't be a transition without it ! - utcEpochMSecs = (hint > 0) ? forStd - dstStep : forDst + dstStep; - } - } - - return data(utcEpochMSecs); -} - -bool QTimeZonePrivate::hasTransitions() const -{ - return false; -} - -QTimeZonePrivate::Data QTimeZonePrivate::nextTransition(qint64 afterMSecsSinceEpoch) const -{ - Q_UNUSED(afterMSecsSinceEpoch) - return invalidData(); -} - -QTimeZonePrivate::Data QTimeZonePrivate::previousTransition(qint64 beforeMSecsSinceEpoch) const -{ - Q_UNUSED(beforeMSecsSinceEpoch) - return invalidData(); -} - -QTimeZonePrivate::DataList QTimeZonePrivate::transitions(qint64 fromMSecsSinceEpoch, - qint64 toMSecsSinceEpoch) const -{ - DataList list; - if (toMSecsSinceEpoch >= fromMSecsSinceEpoch) { - // fromMSecsSinceEpoch is inclusive but nextTransitionTime() is exclusive so go back 1 msec - Data next = nextTransition(fromMSecsSinceEpoch - 1); - while (next.atMSecsSinceEpoch != invalidMSecs() - && next.atMSecsSinceEpoch <= toMSecsSinceEpoch) { - list.append(next); - next = nextTransition(next.atMSecsSinceEpoch); - } - } - return list; -} - -QByteArray QTimeZonePrivate::systemTimeZoneId() const -{ - return QByteArray(); -} - -bool QTimeZonePrivate::isTimeZoneIdAvailable(const QByteArray& ianaId) const -{ - // Fall-back implementation, can be made faster in subclasses - const QList<QByteArray> tzIds = availableTimeZoneIds(); - return std::binary_search(tzIds.begin(), tzIds.end(), ianaId); -} - -QList<QByteArray> QTimeZonePrivate::availableTimeZoneIds() const -{ - return QList<QByteArray>(); -} - -QList<QByteArray> QTimeZonePrivate::availableTimeZoneIds(QLocale::Country country) const -{ - // Default fall-back mode, use the zoneTable to find Region of know Zones - QList<QByteArray> regions; - - // First get all Zones in the Zones table belonging to the Region - for (int i = 0; i < zoneDataTableSize; ++i) { - if (zoneData(i)->country == country) - regions += ianaId(zoneData(i)).split(' '); - } - - std::sort(regions.begin(), regions.end()); - regions.erase(std::unique(regions.begin(), regions.end()), regions.end()); - - // Then select just those that are available - const QList<QByteArray> all = availableTimeZoneIds(); - QList<QByteArray> result; - result.reserve(qMin(all.size(), regions.size())); - std::set_intersection(all.begin(), all.end(), regions.cbegin(), regions.cend(), - std::back_inserter(result)); - return result; -} - -QList<QByteArray> QTimeZonePrivate::availableTimeZoneIds(int offsetFromUtc) const -{ - // Default fall-back mode, use the zoneTable to find Offset of know Zones - QList<QByteArray> offsets; - // First get all Zones in the table using the Offset - for (int i = 0; i < windowsDataTableSize; ++i) { - const QWindowsData *winData = windowsData(i); - if (winData->offsetFromUtc == offsetFromUtc) { - for (int j = 0; j < zoneDataTableSize; ++j) { - const QZoneData *data = zoneData(j); - if (data->windowsIdKey == winData->windowsIdKey) - offsets += ianaId(data).split(' '); - } - } - } - - std::sort(offsets.begin(), offsets.end()); - offsets.erase(std::unique(offsets.begin(), offsets.end()), offsets.end()); - - // Then select just those that are available - const QList<QByteArray> all = availableTimeZoneIds(); - QList<QByteArray> result; - result.reserve(qMin(all.size(), offsets.size())); - std::set_intersection(all.begin(), all.end(), offsets.cbegin(), offsets.cend(), - std::back_inserter(result)); - return result; -} - -#ifndef QT_NO_DATASTREAM -void QTimeZonePrivate::serialize(QDataStream &ds) const -{ - ds << QString::fromUtf8(m_id); -} -#endif // QT_NO_DATASTREAM - -// Static Utility Methods - -QTimeZonePrivate::Data QTimeZonePrivate::invalidData() -{ - Data data; - data.atMSecsSinceEpoch = invalidMSecs(); - data.offsetFromUtc = invalidSeconds(); - data.standardTimeOffset = invalidSeconds(); - data.daylightTimeOffset = invalidSeconds(); - return data; -} - -QTimeZone::OffsetData QTimeZonePrivate::invalidOffsetData() -{ - QTimeZone::OffsetData offsetData; - offsetData.atUtc = QDateTime(); - offsetData.offsetFromUtc = invalidSeconds(); - offsetData.standardTimeOffset = invalidSeconds(); - offsetData.daylightTimeOffset = invalidSeconds(); - return offsetData; -} - -QTimeZone::OffsetData QTimeZonePrivate::toOffsetData(const QTimeZonePrivate::Data &data) -{ - QTimeZone::OffsetData offsetData = invalidOffsetData(); - if (data.atMSecsSinceEpoch != invalidMSecs()) { - offsetData.atUtc = QDateTime::fromMSecsSinceEpoch(data.atMSecsSinceEpoch, Qt::UTC); - offsetData.offsetFromUtc = data.offsetFromUtc; - offsetData.standardTimeOffset = data.standardTimeOffset; - offsetData.daylightTimeOffset = data.daylightTimeOffset; - offsetData.abbreviation = data.abbreviation; - } - return offsetData; -} - -// Is the format of the ID valid ? -bool QTimeZonePrivate::isValidId(const QByteArray &ianaId) -{ - /* - Main rules for defining TZ/IANA names as per ftp://ftp.iana.org/tz/code/Theory - 1. Use only valid POSIX file name components - 2. Within a file name component, use only ASCII letters, `.', `-' and `_'. - 3. Do not use digits (except in a [+-]\d+ suffix, when used). - 4. A file name component must not exceed 14 characters or start with `-' - However, the rules are really guidelines - a later one says - - Do not change established names if they only marginally violate the - above rules. - We may, therefore, need to be a bit slack in our check here, if we hit - legitimate exceptions in real time-zone databases. - - In particular, aliases such as "Etc/GMT+7" and "SystemV/EST5EDT" are valid - so we need to accept digits, ':', and '+'; aliases typically have the form - of POSIX TZ strings, which allow a suffix to a proper IANA name. A POSIX - suffix starts with an offset (as in GMT+7) and may continue with another - name (as in EST5EDT, giving the DST name of the zone); a further offset is - allowed (for DST). The ("hard to describe and [...] error-prone in - practice") POSIX form even allows a suffix giving the dates (and - optionally times) of the annual DST transitions. Hopefully, no TZ aliases - go that far, but we at least need to accept an offset and (single - fragment) DST-name. - - But for the legacy complications, the following would be preferable if - QRegExp would work on QByteArrays directly: - const QRegExp rx(QStringLiteral("[a-z+._][a-z+._-]{,13}" - "(?:/[a-z+._][a-z+._-]{,13})*" - // Optional suffix: - "(?:[+-]?\d{1,2}(?::\d{1,2}){,2}" // offset - // one name fragment (DST): - "(?:[a-z+._][a-z+._-]{,13})?)"), - Qt::CaseInsensitive); - return rx.exactMatch(ianaId); - */ - - // Somewhat slack hand-rolled version: - const int MinSectionLength = 1; - const int MaxSectionLength = 14; - int sectionLength = 0; - for (const char *it = ianaId.begin(), * const end = ianaId.end(); it != end; ++it, ++sectionLength) { - const char ch = *it; - if (ch == '/') { - if (sectionLength < MinSectionLength || sectionLength > MaxSectionLength) - return false; // violates (4) - sectionLength = -1; - } else if (ch == '-') { - if (sectionLength == 0) - return false; // violates (4) - } else if (!(ch >= 'a' && ch <= 'z') - && !(ch >= 'A' && ch <= 'Z') - && !(ch == '_') - && !(ch == '.') - // Should ideally check these only happen as an offset: - && !(ch >= '0' && ch <= '9') - && !(ch == '+') - && !(ch == ':')) { - return false; // violates (2) - } - } - if (sectionLength < MinSectionLength || sectionLength > MaxSectionLength) - return false; // violates (4) - return true; -} - -QString QTimeZonePrivate::isoOffsetFormat(int offsetFromUtc) -{ - const int mins = offsetFromUtc / 60; - return QString::fromUtf8("UTC%1%2:%3").arg(mins >= 0 ? QLatin1Char('+') : QLatin1Char('-')) - .arg(qAbs(mins) / 60, 2, 10, QLatin1Char('0')) - .arg(qAbs(mins) % 60, 2, 10, QLatin1Char('0')); -} - -QByteArray QTimeZonePrivate::ianaIdToWindowsId(const QByteArray &id) -{ - for (int i = 0; i < zoneDataTableSize; ++i) { - const QZoneData *data = zoneData(i); - if (ianaId(data).split(' ').contains(id)) - return toWindowsIdLiteral(data->windowsIdKey); - } - return QByteArray(); -} - -QByteArray QTimeZonePrivate::windowsIdToDefaultIanaId(const QByteArray &windowsId) -{ - const quint16 windowsIdKey = toWindowsIdKey(windowsId); - for (int i = 0; i < windowsDataTableSize; ++i) { - const QWindowsData *data = windowsData(i); - if (data->windowsIdKey == windowsIdKey) - return ianaId(data); - } - return QByteArray(); -} - -QByteArray QTimeZonePrivate::windowsIdToDefaultIanaId(const QByteArray &windowsId, - QLocale::Country country) -{ - const QList<QByteArray> list = windowsIdToIanaIds(windowsId, country); - if (list.count() > 0) - return list.first(); - else - return QByteArray(); -} - -QList<QByteArray> QTimeZonePrivate::windowsIdToIanaIds(const QByteArray &windowsId) -{ - const quint16 windowsIdKey = toWindowsIdKey(windowsId); - QList<QByteArray> list; - - for (int i = 0; i < zoneDataTableSize; ++i) { - const QZoneData *data = zoneData(i); - if (data->windowsIdKey == windowsIdKey) - list << ianaId(data).split(' '); - } - - // Return the full list in alpha order - std::sort(list.begin(), list.end()); - return list; -} - -QList<QByteArray> QTimeZonePrivate::windowsIdToIanaIds(const QByteArray &windowsId, - QLocale::Country country) -{ - const quint16 windowsIdKey = toWindowsIdKey(windowsId); - for (int i = 0; i < zoneDataTableSize; ++i) { - const QZoneData *data = zoneData(i); - // Return the region matches in preference order - if (data->windowsIdKey == windowsIdKey && data->country == (quint16) country) - return ianaId(data).split(' '); - } - - return QList<QByteArray>(); -} - -// Define template for derived classes to reimplement so QSharedDataPointer clone() works correctly -template<> QTimeZonePrivate *QSharedDataPointer<QTimeZonePrivate>::clone() -{ - return d->clone(); -} - -/* - UTC Offset implementation, used when QT_NO_SYSTEMLOCALE set and ICU is not being used, - or for QDateTimes with a Qt:Spec of Qt::OffsetFromUtc. -*/ - -// Create default UTC time zone -QUtcTimeZonePrivate::QUtcTimeZonePrivate() -{ - const QString name = utcQString(); - init(utcQByteArray(), 0, name, name, QLocale::AnyCountry, name); -} - -// Create a named UTC time zone -QUtcTimeZonePrivate::QUtcTimeZonePrivate(const QByteArray &id) -{ - // Look for the name in the UTC list, if found set the values - for (int i = 0; i < utcDataTableSize; ++i) { - const QUtcData *data = utcData(i); - const QByteArray uid = utcId(data); - if (uid == id) { - QString name = QString::fromUtf8(id); - init(id, data->offsetFromUtc, name, name, QLocale::AnyCountry, name); - break; - } - } -} - -// Create offset from UTC -QUtcTimeZonePrivate::QUtcTimeZonePrivate(qint32 offsetSeconds) -{ - QString utcId; - - if (offsetSeconds == 0) - utcId = utcQString(); - else - utcId = isoOffsetFormat(offsetSeconds); - - init(utcId.toUtf8(), offsetSeconds, utcId, utcId, QLocale::AnyCountry, utcId); -} - -QUtcTimeZonePrivate::QUtcTimeZonePrivate(const QByteArray &zoneId, int offsetSeconds, - const QString &name, const QString &abbreviation, - QLocale::Country country, const QString &comment) -{ - init(zoneId, offsetSeconds, name, abbreviation, country, comment); -} - -QUtcTimeZonePrivate::QUtcTimeZonePrivate(const QUtcTimeZonePrivate &other) - : QTimeZonePrivate(other), m_name(other.m_name), - m_abbreviation(other.m_abbreviation), - m_comment(other.m_comment), - m_country(other.m_country), - m_offsetFromUtc(other.m_offsetFromUtc) -{ -} - -QUtcTimeZonePrivate::~QUtcTimeZonePrivate() -{ -} - -QUtcTimeZonePrivate *QUtcTimeZonePrivate::clone() const -{ - return new QUtcTimeZonePrivate(*this); -} - -QTimeZonePrivate::Data QUtcTimeZonePrivate::data(qint64 forMSecsSinceEpoch) const -{ - Data d; - d.abbreviation = m_abbreviation; - d.atMSecsSinceEpoch = forMSecsSinceEpoch; - d.standardTimeOffset = d.offsetFromUtc = m_offsetFromUtc; - d.daylightTimeOffset = 0; - return d; -} - -void QUtcTimeZonePrivate::init(const QByteArray &zoneId) -{ - m_id = zoneId; -} - -void QUtcTimeZonePrivate::init(const QByteArray &zoneId, int offsetSeconds, const QString &name, - const QString &abbreviation, QLocale::Country country, - const QString &comment) -{ - m_id = zoneId; - m_offsetFromUtc = offsetSeconds; - m_name = name; - m_abbreviation = abbreviation; - m_country = country; - m_comment = comment; -} - -QLocale::Country QUtcTimeZonePrivate::country() const -{ - return m_country; -} - -QString QUtcTimeZonePrivate::comment() const -{ - return m_comment; -} - -QString QUtcTimeZonePrivate::displayName(QTimeZone::TimeType timeType, - QTimeZone::NameType nameType, - const QLocale &locale) const -{ - Q_UNUSED(timeType) - Q_UNUSED(locale) - if (nameType == QTimeZone::ShortName) - return m_abbreviation; - else if (nameType == QTimeZone::OffsetName) - return isoOffsetFormat(m_offsetFromUtc); - return m_name; -} - -QString QUtcTimeZonePrivate::abbreviation(qint64 atMSecsSinceEpoch) const -{ - Q_UNUSED(atMSecsSinceEpoch) - return m_abbreviation; -} - -qint32 QUtcTimeZonePrivate::standardTimeOffset(qint64 atMSecsSinceEpoch) const -{ - Q_UNUSED(atMSecsSinceEpoch) - return m_offsetFromUtc; -} - -qint32 QUtcTimeZonePrivate::daylightTimeOffset(qint64 atMSecsSinceEpoch) const -{ - Q_UNUSED(atMSecsSinceEpoch) - return 0; -} - -QByteArray QUtcTimeZonePrivate::systemTimeZoneId() const -{ - return utcQByteArray(); -} - -bool QUtcTimeZonePrivate::isTimeZoneIdAvailable(const QByteArray &ianaId) const -{ - for (int i = 0; i < utcDataTableSize; ++i) { - const QUtcData *data = utcData(i); - if (utcId(data) == ianaId) { - return true; - } - } - return false; -} - -QList<QByteArray> QUtcTimeZonePrivate::availableTimeZoneIds() const -{ - QList<QByteArray> result; - result.reserve(utcDataTableSize); - for (int i = 0; i < utcDataTableSize; ++i) - result << utcId(utcData(i)); - std::sort(result.begin(), result.end()); // ### or already sorted?? - // ### assuming no duplicates - return result; -} - -QList<QByteArray> QUtcTimeZonePrivate::availableTimeZoneIds(QLocale::Country country) const -{ - // If AnyCountry then is request for all non-region offset codes - if (country == QLocale::AnyCountry) - return availableTimeZoneIds(); - return QList<QByteArray>(); -} - -QList<QByteArray> QUtcTimeZonePrivate::availableTimeZoneIds(qint32 offsetSeconds) const -{ - QList<QByteArray> result; - for (int i = 0; i < utcDataTableSize; ++i) { - const QUtcData *data = utcData(i); - if (data->offsetFromUtc == offsetSeconds) - result << utcId(data); - } - std::sort(result.begin(), result.end()); // ### or already sorted?? - // ### assuming no duplicates - return result; -} - -#ifndef QT_NO_DATASTREAM -void QUtcTimeZonePrivate::serialize(QDataStream &ds) const -{ - ds << QStringLiteral("OffsetFromUtc") << QString::fromUtf8(m_id) << m_offsetFromUtc << m_name - << m_abbreviation << (qint32) m_country << m_comment; -} -#endif // QT_NO_DATASTREAM - -QT_END_NAMESPACE diff --git a/src/corelib/tools/qtimezoneprivate_android.cpp b/src/corelib/tools/qtimezoneprivate_android.cpp deleted file mode 100644 index be4f374fdd..0000000000 --- a/src/corelib/tools/qtimezoneprivate_android.cpp +++ /dev/null @@ -1,257 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2014 Drew Parsons <dparsons@emerall.com> -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtCore module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include <QtCore/QSet> -#include "qtimezone.h" -#include "qtimezoneprivate_p.h" - -QT_BEGIN_NAMESPACE - -/* - Private - - Android implementation -*/ - -// Create the system default time zone -QAndroidTimeZonePrivate::QAndroidTimeZonePrivate() - : QTimeZonePrivate() -{ - // start with system time zone - androidTimeZone = QJNIObjectPrivate::callStaticObjectMethod("java.util.TimeZone", "getDefault", "()Ljava/util/TimeZone;"); - init("UTC"); -} - -// Create a named time zone -QAndroidTimeZonePrivate::QAndroidTimeZonePrivate(const QByteArray &ianaId) - : QTimeZonePrivate() -{ - init(ianaId); -} - -QAndroidTimeZonePrivate::QAndroidTimeZonePrivate(const QAndroidTimeZonePrivate &other) - : QTimeZonePrivate(other) -{ - androidTimeZone = other.androidTimeZone; - m_id = other.id(); -} - -QAndroidTimeZonePrivate::~QAndroidTimeZonePrivate() -{ -} - - -void QAndroidTimeZonePrivate::init(const QByteArray &ianaId) -{ - QJNIObjectPrivate jo_ianaId = QJNIObjectPrivate::fromString( QString::fromUtf8(ianaId) ); - androidTimeZone = QJNIObjectPrivate::callStaticObjectMethod( "java.util.TimeZone", "getTimeZone", "(Ljava/lang/String;)Ljava/util/TimeZone;", static_cast<jstring>(jo_ianaId.object()) ); - - // Painfully, JNI gives us back a default zone object if it doesn't - // recognize the name; so check for whether ianaId is a recognized name of - // the zone object we got and ignore the zone if not. - // Try checking ianaId against getID(), getDisplayName(): - QJNIObjectPrivate jname = androidTimeZone.callObjectMethod("getID", "()Ljava/lang/String;"); - bool found = (jname.toString().toUtf8() == ianaId); - for (int style = 1; !found && style-- > 0;) { - for (int dst = 1; !found && dst-- > 0;) { - jname = androidTimeZone.callObjectMethod("getDisplayName", "(ZI;)Ljava/lang/String;", - bool(dst), style); - found = (jname.toString().toUtf8() == ianaId); - } - } - - if (!found) - m_id.clear(); - else if (ianaId.isEmpty()) - m_id = systemTimeZoneId(); - else - m_id = ianaId; -} - -QAndroidTimeZonePrivate *QAndroidTimeZonePrivate::clone() const -{ - return new QAndroidTimeZonePrivate(*this); -} - - -QString QAndroidTimeZonePrivate::displayName(QTimeZone::TimeType timeType, QTimeZone::NameType nameType, - const QLocale &locale) const -{ - QString name; - - if (androidTimeZone.isValid()) { - jboolean daylightTime = (timeType == QTimeZone::DaylightTime); // treat QTimeZone::GenericTime as QTimeZone::StandardTime - - // treat all NameTypes as java TimeZone style LONG (value 1), except of course QTimeZone::ShortName which is style SHORT (value 0); - jint style = (nameType == QTimeZone::ShortName ? 0 : 1); - - QJNIObjectPrivate jlanguage = QJNIObjectPrivate::fromString(QLocale::languageToString(locale.language())); - QJNIObjectPrivate jcountry = QJNIObjectPrivate::fromString(QLocale::countryToString(locale.country())); - QJNIObjectPrivate jvariant = QJNIObjectPrivate::fromString(QLocale::scriptToString(locale.script())); - QJNIObjectPrivate jlocale("java.util.Locale", "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V", static_cast<jstring>(jlanguage.object()), static_cast<jstring>(jcountry.object()), static_cast<jstring>(jvariant.object())); - - QJNIObjectPrivate jname = androidTimeZone.callObjectMethod("getDisplayName", "(ZILjava/util/Locale;)Ljava/lang/String;", daylightTime, style, jlocale.object()); - - name = jname.toString(); - } - - return name; -} - -QString QAndroidTimeZonePrivate::abbreviation(qint64 atMSecsSinceEpoch) const -{ - if ( isDaylightTime( atMSecsSinceEpoch ) ) - return displayName(QTimeZone::DaylightTime, QTimeZone::ShortName, QLocale() ); - else - return displayName(QTimeZone::StandardTime, QTimeZone::ShortName, QLocale() ); -} - -int QAndroidTimeZonePrivate::offsetFromUtc(qint64 atMSecsSinceEpoch) const -{ - // offsetFromUtc( ) is invoked when androidTimeZone may not yet be set at startup, - // so a validity test is needed here - if ( androidTimeZone.isValid() ) - // the java method getOffset() returns milliseconds, but QTimeZone returns seconds - return androidTimeZone.callMethod<jint>( "getOffset", "(J)I", static_cast<jlong>(atMSecsSinceEpoch) ) / 1000; - else - return 0; -} - -int QAndroidTimeZonePrivate::standardTimeOffset(qint64 atMSecsSinceEpoch) const -{ - // the java method does not use a reference time - Q_UNUSED( atMSecsSinceEpoch ); - if ( androidTimeZone.isValid() ) - // the java method getRawOffset() returns milliseconds, but QTimeZone returns seconds - return androidTimeZone.callMethod<jint>( "getRawOffset" ) / 1000; - else - return 0; -} - -int QAndroidTimeZonePrivate::daylightTimeOffset(qint64 atMSecsSinceEpoch) const -{ - return ( offsetFromUtc(atMSecsSinceEpoch) - standardTimeOffset(atMSecsSinceEpoch) ); -} - -bool QAndroidTimeZonePrivate::hasDaylightTime() const -{ - if ( androidTimeZone.isValid() ) - /* note: the Java function only tests for future DST transtions, not past */ - return androidTimeZone.callMethod<jboolean>("useDaylightTime" ); - else - return false; -} - -bool QAndroidTimeZonePrivate::isDaylightTime(qint64 atMSecsSinceEpoch) const -{ - if ( androidTimeZone.isValid() ) { - QJNIObjectPrivate jDate( "java/util/Date", "(J)V", static_cast<jlong>(atMSecsSinceEpoch) ); - return androidTimeZone.callMethod<jboolean>("inDaylightTime", "(Ljava/util/Date;)Z", jDate.object() ); - } - else - return false; -} - -QTimeZonePrivate::Data QAndroidTimeZonePrivate::data(qint64 forMSecsSinceEpoch) const -{ - if (androidTimeZone.isValid()) { - Data data; - data.atMSecsSinceEpoch = forMSecsSinceEpoch; - data.standardTimeOffset = standardTimeOffset(forMSecsSinceEpoch); - data.offsetFromUtc = offsetFromUtc(forMSecsSinceEpoch); - data.daylightTimeOffset = data.offsetFromUtc - data.standardTimeOffset; - data.abbreviation = abbreviation(forMSecsSinceEpoch); - return data; - } else { - return invalidData(); - } -} - -bool QAndroidTimeZonePrivate::hasTransitions() const -{ - // java.util.TimeZone does not directly provide transitions - return false; -} - -QTimeZonePrivate::Data QAndroidTimeZonePrivate::nextTransition(qint64 afterMSecsSinceEpoch) const -{ - // transitions not available on Android, so return an invalid data object - Q_UNUSED( afterMSecsSinceEpoch ); - return invalidData(); -} - -QTimeZonePrivate::Data QAndroidTimeZonePrivate::previousTransition(qint64 beforeMSecsSinceEpoch) const -{ - // transitions not available on Android, so return an invalid data object - Q_UNUSED( beforeMSecsSinceEpoch ); - return invalidData(); -} - -QByteArray QAndroidTimeZonePrivate::systemTimeZoneId() const -{ - QJNIObjectPrivate androidSystemTimeZone = QJNIObjectPrivate::callStaticObjectMethod("java.util.TimeZone", "getDefault", "()Ljava/util/TimeZone;"); - QJNIObjectPrivate systemTZIdAndroid = androidSystemTimeZone.callObjectMethod<jstring>("getID"); - QByteArray systemTZid = systemTZIdAndroid.toString().toUtf8(); - - return systemTZid; -} - -QList<QByteArray> QAndroidTimeZonePrivate::availableTimeZoneIds() const -{ - QList<QByteArray> availableTimeZoneIdList; - QJNIObjectPrivate androidAvailableIdList = QJNIObjectPrivate::callStaticObjectMethod("java.util.TimeZone", "getAvailableIDs", "()[Ljava/lang/String;"); - - QJNIEnvironmentPrivate jniEnv; - int androidTZcount = jniEnv->GetArrayLength( static_cast<jarray>(androidAvailableIdList.object()) ); - - // need separate jobject and QAndroidJniObject here so that we can delete (DeleteLocalRef) the reference to the jobject - // (or else the JNI reference table fills after 512 entries from GetObjectArrayElement) - jobject androidTZobject; - QJNIObjectPrivate androidTZ; - for (int i=0; i<androidTZcount; i++ ) { - androidTZobject = jniEnv->GetObjectArrayElement( static_cast<jobjectArray>( androidAvailableIdList.object() ), i ); - androidTZ = androidTZobject; - availableTimeZoneIdList.append( androidTZ.toString().toUtf8() ); - jniEnv->DeleteLocalRef(androidTZobject); - } - - return availableTimeZoneIdList; -} - -QT_END_NAMESPACE diff --git a/src/corelib/tools/qtimezoneprivate_data_p.h b/src/corelib/tools/qtimezoneprivate_data_p.h deleted file mode 100644 index 40d6c972c2..0000000000 --- a/src/corelib/tools/qtimezoneprivate_data_p.h +++ /dev/null @@ -1,1257 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2013 John Layt <jlayt@kde.org> -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtCore module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - - -#ifndef QTIMEZONEPRIVATE_DATA_P_H -#define QTIMEZONEPRIVATE_DATA_P_H - -// -// W A R N I N G -// ------------- -// -// This file is not part of the Qt API. It exists for the convenience -// of internal files. This header file may change from version to version -// without notice, or even be removed. -// -// We mean it. -// - -#include <QtCore/private/qglobal_p.h> - -QT_BEGIN_NAMESPACE - -/* - Windows Zone ID support, included in default base class build so can be used on all platforms, - e.g. an app running on Linux may need to communicate with a Windows Outlook server. These - tables can also be used to look-up Region Codes and UTC Offsets on platforms that don't directly - support them., e.g. Mac does not support availableTimeZones() filtering by region or offset. - - Another data table is provided for generic UTC+00:00 format time zones to be used as a - fall-back if no system time zones are available (QT_NO_SYSTEMLOCALE is set) or for QDateTimes - with a QT:Spec of OffsetFromUTC - - These tables are automatically adapted from the CLDR supplemental/windowsZones.xml data file - using a script in qtbase/util/locale_database. Please do not edit this data directly. In the - future if ICU is made a hard dependency then the ICU resource can be used directly and this - table removed -*/ - -struct QZoneData { - quint16 windowsIdKey; // Windows ID Key - quint16 country; // Country of IANA ID's, AnyCountry means No Country - quint16 ianaIdIndex; // All IANA ID's for the Windows ID and Country, space separated -}; - -struct QWindowsData { - quint16 windowsIdKey; // Windows ID Key - quint16 windowsIdIndex; // Windows ID Literal - quint16 ianaIdIndex; // Default IANA ID for the Windows ID - qint32 offsetFromUtc; // Standard Time Offset from UTC, used for quick look-ups -}; - -struct QUtcData { - quint16 ianaIdIndex; // IANA ID's - qint32 offsetFromUtc; // Offset form UTC is seconds -}; - -/* - COPYRIGHT AND PERMISSION NOTICE - - Copyright © 1991-2012 Unicode, Inc. All rights reserved. Distributed under - the Terms of Use in http://www.unicode.org/copyright.html. - - Permission is hereby granted, free of charge, to any person obtaining a - copy of the Unicode data files and any associated documentation (the "Data - Files") or Unicode software and any associated documentation (the "Software") - to deal in the Data Files or Software without restriction, including without - limitation the rights to use, copy, modify, merge, publish, distribute, and/or - sell copies of the Data Files or Software, and to permit persons to whom the - Data Files or Software are furnished to do so, provided that (a) the above - copyright notice(s) and this permission notice appear with all copies of the - Data Files or Software, (b) both the above copyright notice(s) and this - permission notice appear in associated documentation, and (c) there is clear - notice in each modified Data File or in the Software as well as in the - documentation associated with the Data File(s) or Software that the data or - software has been modified. -*/ - -// GENERATED PART STARTS HERE - -/* - This part of the file was generated on 2019-05-28 from the - Common Locale Data Repository v35.1 supplemental/windowsZones.xml file $Revision: 14742 $ - - http://www.unicode.org/cldr/ - - Do not edit this code: run cldr2qtimezone.py on updated (or - edited) CLDR data; see qtbase/util/locale_database/. -*/ - -// Windows ID Key, Country Enum, IANA ID Index -static const QZoneData zoneDataTable[] = { - { 131, 143, 0 }, // W. Mongolia Standard Time / Mongolia - { 124, 112, 10 }, // UTC+12 / Kiribati - { 52, 94, 25 }, // Haiti Standard Time / Haiti - { 32, 44, 48 }, // China Standard Time / China - { 95, 244, 62 }, // SA Western Standard Time / Saint Barthelemy - { 25, 116, 84 }, // Central Asia Standard Time / Kyrgyzstan - { 36, 8, 97 }, // E. Africa Standard Time / Antarctica - { 33, 154, 114 }, // Chatham Islands Standard Time / New Zealand - { 95, 144, 130 }, // SA Western Standard Time / Montserrat - { 37, 13, 149 }, // E. Australia Standard Time / Australia - { 61, 0, 187 }, // Line Islands Standard Time / AnyCountry - { 132, 218, 198 }, // West Asia Standard Time / Turkmenistan - { 122, 30, 212 }, // UTC-02 / Brazil - { 24, 52, 228 }, // Central America Standard Time / Costa Rica - { 36, 67, 247 }, // E. Africa Standard Time / Eritrea - { 128, 8, 261 }, // W. Australia Standard Time / Antarctica - { 101, 101, 278 }, // SE Asia Standard Time / Indonesia - { 93, 8, 306 }, // SA Eastern Standard Time / Antarctica - { 4, 178, 325 }, // Altai Standard Time / Russia - { 95, 256, 338 }, // SA Western Standard Time / Sint Maarten - { 95, 60, 360 }, // SA Western Standard Time / Dominica - { 134, 167, 377 }, // West Pacific Standard Time / Papua New Guinea - { 13, 13, 398 }, // AUS Eastern Standard Time / Australia - { 69, 236, 435 }, // Morocco Standard Time / Western Sahara - { 39, 30, 451 }, // E. South America Standard Time / Brazil - { 124, 134, 469 }, // UTC+12 / Marshall Islands - { 125, 112, 502 }, // UTC+13 / Kiribati - { 103, 146, 520 }, // South Africa Standard Time / Mozambique - { 94, 30, 534 }, // SA Pacific Standard Time / Brazil - { 88, 74, 570 }, // Romance Standard Time / France - { 71, 38, 583 }, // Mountain Standard Time / Canada - { 72, 147, 657 }, // Myanmar Standard Time / Myanmar - { 26, 30, 670 }, // Central Brazilian Standard Time / Brazil - { 130, 123, 706 }, // W. Europe Standard Time / Liechtenstein - { 46, 73, 719 }, // FLE Standard Time / Finland - { 93, 70, 735 }, // SA Eastern Standard Time / Falkland Islands - { 78, 159, 752 }, // Norfolk Standard Time / Norfolk Island - { 53, 0, 768 }, // Hawaiian Standard Time / AnyCountry - { 28, 54, 779 }, // Central European Standard Time / Croatia - { 75, 150, 793 }, // Nepal Standard Time / Nepal - { 46, 33, 807 }, // FLE Standard Time / Bulgaria - { 6, 162, 820 }, // Arabian Standard Time / Oman - { 132, 131, 832 }, // West Asia Standard Time / Maldives - { 88, 197, 848 }, // Romance Standard Time / Spain - { 50, 91, 875 }, // Greenwich Standard Time / Guinea - { 5, 237, 890 }, // Arab Standard Time / Yemen - { 92, 222, 900 }, // Russian Standard Time / Ukraine - { 103, 204, 918 }, // South Africa Standard Time / Swaziland - { 130, 203, 933 }, // W. Europe Standard Time / Svalbard And Jan Mayen Islands - { 7, 103, 953 }, // Arabic Standard Time / Iraq - { 119, 226, 966 }, // UTC-11 / United States Minor Outlying Islands - { 5, 115, 981 }, // Arab Standard Time / Kuwait - { 50, 189, 993 }, // Greenwich Standard Time / Sierra Leone - { 31, 0, 1009 }, // Central Standard Time / AnyCountry - { 53, 51, 1017 }, // Hawaiian Standard Time / Cook Islands - { 129, 50, 1035 }, // W. Central Africa Standard Time / Congo Brazzaville - { 64, 43, 1054 }, // Magallanes Standard Time / Chile - { 119, 0, 1075 }, // UTC-11 / AnyCountry - { 84, 38, 1086 }, // Pacific Standard Time / Canada - { 22, 11, 1138 }, // Caucasus Standard Time / Armenia - { 130, 142, 1151 }, // W. Europe Standard Time / Monaco - { 103, 239, 1165 }, // South Africa Standard Time / Zambia - { 46, 222, 1179 }, // FLE Standard Time / Ukraine - { 87, 168, 1225 }, // Paraguay Standard Time / Paraguay - { 57, 109, 1242 }, // Jordan Standard Time / Jordan - { 109, 30, 1253 }, // Tocantins Standard Time / Brazil - { 55, 102, 1271 }, // Iran Standard Time / Iran - { 101, 8, 1283 }, // SE Asia Standard Time / Antarctica - { 27, 57, 1300 }, // Central Europe Standard Time / Czech Republic - { 95, 215, 1314 }, // SA Western Standard Time / Trinidad And Tobago - { 103, 28, 1336 }, // South Africa Standard Time / Botswana - { 132, 0, 1352 }, // West Asia Standard Time / AnyCountry - { 94, 63, 1362 }, // SA Pacific Standard Time / Ecuador - { 51, 85, 1380 }, // GTB Standard Time / Greece - { 36, 128, 1394 }, // E. Africa Standard Time / Madagascar - { 53, 226, 1414 }, // Hawaiian Standard Time / United States Minor Outlying Islands - { 94, 107, 1431 }, // SA Pacific Standard Time / Jamaica - { 104, 198, 1447 }, // Sri Lanka Standard Time / Sri Lanka - { 27, 243, 1460 }, // Central Europe Standard Time / Serbia - { 25, 110, 1476 }, // Central Asia Standard Time / Kazakhstan - { 125, 0, 1502 }, // UTC+13 / AnyCountry - { 94, 38, 1513 }, // SA Pacific Standard Time / Canada - { 25, 31, 1535 }, // Central Asia Standard Time / British Indian Ocean Territory - { 108, 13, 1549 }, // Tasmania Standard Time / Australia - { 95, 174, 1583 }, // SA Western Standard Time / Puerto Rico - { 95, 180, 1603 }, // SA Western Standard Time / Saint Kitts And Nevis - { 130, 206, 1620 }, // W. Europe Standard Time / Switzerland - { 117, 225, 1634 }, // US Eastern Standard Time / United States - { 29, 140, 1701 }, // Central Pacific Standard Time / Micronesia - { 120, 77, 1731 }, // UTC-09 / French Polynesia - { 129, 156, 1747 }, // W. Central Africa Standard Time / Niger - { 118, 139, 1761 }, // US Mountain Standard Time / Mexico - { 36, 194, 1780 }, // E. Africa Standard Time / Somalia - { 118, 0, 1797 }, // US Mountain Standard Time / AnyCountry - { 10, 24, 1807 }, // Atlantic Standard Time / Bermuda - { 103, 240, 1824 }, // South Africa Standard Time / Zimbabwe - { 32, 126, 1838 }, // China Standard Time / Macau - { 129, 66, 1849 }, // W. Central Africa Standard Time / Equatorial Guinea - { 66, 137, 1863 }, // Mauritius Standard Time / Mauritius - { 46, 68, 1880 }, // FLE Standard Time / Estonia - { 50, 187, 1895 }, // Greenwich Standard Time / Senegal - { 132, 110, 1908 }, // West Asia Standard Time / Kazakhstan - { 25, 44, 1968 }, // Central Asia Standard Time / China - { 130, 106, 1980 }, // W. Europe Standard Time / Italy - { 48, 251, 1992 }, // GMT Standard Time / Isle Of Man - { 36, 210, 2011 }, // E. Africa Standard Time / Tanzania - { 10, 86, 2032 }, // Atlantic Standard Time / Greenland - { 123, 86, 2046 }, // UTC / Greenland - { 20, 38, 2067 }, // Canada Central Standard Time / Canada - { 15, 86, 2104 }, // Azores Standard Time / Greenland - { 69, 145, 2125 }, // Morocco Standard Time / Morocco - { 115, 219, 2143 }, // Turks And Caicos Standard Time / Turks And Caicos Islands - { 50, 80, 2162 }, // Greenwich Standard Time / Gambia - { 129, 42, 2176 }, // W. Central Africa Standard Time / Chad - { 56, 105, 2192 }, // Israel Standard Time / Israel - { 64, 8, 2207 }, // Magallanes Standard Time / Antarctica - { 12, 13, 2225 }, // Aus Central W. Standard Time / Australia - { 24, 155, 2241 }, // Central America Standard Time / Nicaragua - { 102, 170, 2257 }, // Singapore Standard Time / Philippines - { 134, 160, 2269 }, // West Pacific Standard Time / Northern Mariana Islands - { 43, 64, 2284 }, // Egypt Standard Time / Egypt - { 88, 21, 2297 }, // Romance Standard Time / Belgium - { 76, 8, 2313 }, // New Zealand Standard Time / Antarctica - { 51, 177, 2332 }, // GTB Standard Time / Romania - { 103, 0, 2349 }, // South Africa Standard Time / AnyCountry - { 41, 225, 2359 }, // Eastern Standard Time / United States - { 129, 23, 2516 }, // W. Central Africa Standard Time / Benin - { 79, 178, 2534 }, // North Asia East Standard Time / Russia - { 116, 143, 2547 }, // Ulaanbaatar Standard Time / Mongolia - { 130, 14, 2580 }, // W. Europe Standard Time / Austria - { 41, 38, 2594 }, // Eastern Standard Time / Canada - { 95, 255, 2699 }, // SA Western Standard Time / Bonaire - { 124, 149, 2718 }, // UTC+12 / Nauru - { 134, 8, 2732 }, // West Pacific Standard Time / Antarctica - { 63, 178, 2758 }, // Magadan Standard Time / Russia - { 130, 161, 2771 }, // W. Europe Standard Time / Norway - { 110, 0, 2783 }, // Tokyo Standard Time / AnyCountry - { 24, 63, 2793 }, // Central America Standard Time / Ecuador - { 103, 35, 2811 }, // South Africa Standard Time / Burundi - { 10, 38, 2828 }, // Atlantic Standard Time / Canada - { 29, 0, 2896 }, // Central Pacific Standard Time / AnyCountry - { 95, 87, 2907 }, // SA Western Standard Time / Grenada - { 29, 153, 2923 }, // Central Pacific Standard Time / New Caledonia - { 42, 139, 2938 }, // Eastern Standard Time (Mexico) / Mexico - { 2, 225, 2953 }, // Alaskan Standard Time / United States - { 49, 86, 3029 }, // Greenland Standard Time / Greenland - { 50, 92, 3045 }, // Greenwich Standard Time / Guinea Bissau - { 130, 184, 3059 }, // W. Europe Standard Time / San Marino - { 27, 98, 3077 }, // Central Europe Standard Time / Hungary - { 24, 96, 3093 }, // Central America Standard Time / Honduras - { 62, 13, 3113 }, // Lord Howe Standard Time / Australia - { 36, 0, 3133 }, // E. Africa Standard Time / AnyCountry - { 129, 79, 3143 }, // W. Central Africa Standard Time / Gabon - { 95, 182, 3161 }, // SA Western Standard Time / Saint Vincent And The Grenadines - { 48, 224, 3180 }, // GMT Standard Time / United Kingdom - { 68, 227, 3194 }, // Montevideo Standard Time / Uruguay - { 124, 0, 3213 }, // UTC+12 / AnyCountry - { 130, 230, 3224 }, // W. Europe Standard Time / Vatican City State - { 50, 99, 3239 }, // Greenwich Standard Time / Iceland - { 34, 55, 3258 }, // Cuba Standard Time / Cuba - { 41, 16, 3273 }, // Eastern Standard Time / Bahamas - { 122, 196, 3288 }, // UTC-02 / South Georgia And The South Sandwich Islands - { 24, 65, 3311 }, // Central America Standard Time / El Salvador - { 31, 225, 3331 }, // Central Standard Time / United States - { 95, 0, 3499 }, // SA Western Standard Time / AnyCountry - { 94, 166, 3509 }, // SA Pacific Standard Time / Panama - { 94, 47, 3524 }, // SA Pacific Standard Time / Colombia - { 70, 139, 3539 }, // Mountain Standard Time (Mexico) / Mexico - { 124, 220, 3574 }, // UTC+12 / Tuvalu - { 130, 84, 3591 }, // W. Europe Standard Time / Gibraltar - { 82, 178, 3608 }, // Omsk Standard Time / Russia - { 60, 122, 3618 }, // Libya Standard Time / Libya - { 25, 8, 3633 }, // Central Asia Standard Time / Antarctica - { 95, 12, 3651 }, // SA Western Standard Time / Aruba - { 67, 119, 3665 }, // Middle East Standard Time / Lebanon - { 102, 0, 3677 }, // Singapore Standard Time / AnyCountry - { 74, 148, 3687 }, // Namibia Standard Time / Namibia - { 126, 231, 3703 }, // Venezuela Standard Time / Venezuela - { 95, 234, 3719 }, // SA Western Standard Time / United States Virgin Islands - { 21, 0, 3737 }, // Cape Verde Standard Time / AnyCountry - { 95, 9, 3747 }, // SA Western Standard Time / Antigua And Barbuda - { 94, 169, 3763 }, // SA Pacific Standard Time / Peru - { 46, 248, 3776 }, // FLE Standard Time / Aland Islands - { 50, 199, 3793 }, // Greenwich Standard Time / Saint Helena - { 134, 140, 3812 }, // West Pacific Standard Time / Micronesia - { 102, 190, 3825 }, // Singapore Standard Time / Singapore - { 95, 61, 3840 }, // SA Western Standard Time / Dominican Republic - { 103, 129, 3862 }, // South Africa Standard Time / Malawi - { 30, 139, 3878 }, // Central Standard Time (Mexico) / Mexico - { 102, 130, 3954 }, // Singapore Standard Time / Malaysia - { 45, 72, 3985 }, // Fiji Standard Time / Fiji - { 118, 225, 3998 }, // US Mountain Standard Time / United States - { 17, 25, 4014 }, // Bangladesh Standard Time / Bhutan - { 130, 133, 4027 }, // W. Europe Standard Time / Malta - { 92, 178, 4040 }, // Russian Standard Time / Russia - { 95, 135, 4084 }, // SA Western Standard Time / Martinique - { 35, 0, 4103 }, // Dateline Standard Time / AnyCountry - { 135, 178, 4114 }, // Yakutsk Standard Time / Russia - { 1, 1, 4141 }, // Afghanistan Standard Time / Afghanistan - { 123, 0, 4152 }, // UTC / AnyCountry - { 31, 139, 4168 }, // Central Standard Time / Mexico - { 6, 0, 4186 }, // Arabian Standard Time / AnyCountry - { 101, 45, 4196 }, // SE Asia Standard Time / Christmas Island - { 15, 173, 4213 }, // Azores Standard Time / Portugal - { 129, 0, 4229 }, // W. Central Africa Standard Time / AnyCountry - { 17, 18, 4239 }, // Bangladesh Standard Time / Bangladesh - { 31, 38, 4250 }, // Central Standard Time / Canada - { 94, 0, 4325 }, // SA Pacific Standard Time / AnyCountry - { 125, 213, 4335 }, // UTC+13 / Tokelau - { 73, 178, 4351 }, // N. Central Asia Standard Time / Russia - { 133, 165, 4368 }, // West Bank Standard Time / Palestinian Territories - { 114, 217, 4390 }, // Turkey Standard Time / Turkey - { 3, 225, 4406 }, // Aleutian Standard Time / United States - { 101, 0, 4419 }, // SE Asia Standard Time / AnyCountry - { 71, 225, 4429 }, // Mountain Standard Time / United States - { 36, 69, 4458 }, // E. Africa Standard Time / Ethiopia - { 130, 151, 4477 }, // W. Europe Standard Time / Netherlands - { 95, 245, 4494 }, // SA Western Standard Time / Saint Martin - { 48, 173, 4510 }, // GMT Standard Time / Portugal - { 46, 124, 4541 }, // FLE Standard Time / Lithuania - { 130, 82, 4556 }, // W. Europe Standard Time / Germany - { 65, 77, 4586 }, // Marquesas Standard Time / French Polynesia - { 80, 178, 4604 }, // North Asia Standard Time / Russia - { 61, 112, 4639 }, // Line Islands Standard Time / Kiribati - { 96, 200, 4658 }, // Saint Pierre Standard Time / Saint Pierre And Miquelon - { 48, 104, 4675 }, // GMT Standard Time / Ireland - { 5, 186, 4689 }, // Arab Standard Time / Saudi Arabia - { 83, 43, 4701 }, // Pacific SA Standard Time / Chile - { 91, 178, 4718 }, // Russia Time Zone 11 / Russia - { 36, 48, 4745 }, // E. Africa Standard Time / Comoros - { 95, 152, 4759 }, // SA Western Standard Time / Cura Sao - { 38, 141, 4775 }, // E. Europe Standard Time / Moldova - { 24, 22, 4791 }, // Central America Standard Time / Belize - { 103, 195, 4806 }, // South Africa Standard Time / South Africa - { 127, 178, 4826 }, // Vladivostok Standard Time / Russia - { 122, 0, 4857 }, // UTC-02 / AnyCountry - { 106, 207, 4867 }, // Syria Standard Time / Syria - { 93, 76, 4881 }, // SA Eastern Standard Time / French Guiana - { 50, 136, 4897 }, // Greenwich Standard Time / Mauritania - { 41, 0, 4915 }, // Eastern Standard Time / AnyCountry - { 16, 30, 4923 }, // Bahia Standard Time / Brazil - { 40, 43, 4937 }, // Easter Island Standard Time / Chile - { 93, 0, 4952 }, // SA Eastern Standard Time / AnyCountry - { 9, 178, 4962 }, // Astrakhan Standard Time / Russia - { 95, 30, 4996 }, // SA Western Standard Time / Brazil - { 18, 20, 5049 }, // Belarus Standard Time / Belarus - { 95, 181, 5062 }, // SA Western Standard Time / Saint Lucia - { 129, 6, 5079 }, // W. Central Africa Standard Time / Angola - { 129, 157, 5093 }, // W. Central Africa Standard Time / Nigeria - { 130, 5, 5106 }, // W. Europe Standard Time / Andorra - { 58, 178, 5121 }, // Kaliningrad Standard Time / Russia - { 71, 0, 5140 }, // Mountain Standard Time / AnyCountry - { 95, 7, 5148 }, // SA Western Standard Time / Anguilla - { 124, 235, 5165 }, // UTC+12 / Wallis And Futuna Islands - { 6, 223, 5180 }, // Arabian Standard Time / United Arab Emirates - { 94, 40, 5191 }, // SA Pacific Standard Time / Cayman Islands - { 101, 211, 5206 }, // SE Asia Standard Time / Thailand - { 29, 193, 5219 }, // Central Pacific Standard Time / Solomon Islands - { 47, 81, 5239 }, // Georgian Standard Time / Georgia - { 101, 36, 5252 }, // SE Asia Standard Time / Cambodia - { 132, 228, 5268 }, // West Asia Standard Time / Uzbekistan - { 51, 56, 5297 }, // GTB Standard Time / Cyprus - { 95, 88, 5325 }, // SA Western Standard Time / Guadeloupe - { 101, 232, 5344 }, // SE Asia Standard Time / Vietnam - { 113, 178, 5356 }, // Transbaikal Standard Time / Russia - { 50, 121, 5367 }, // Greenwich Standard Time / Liberia - { 95, 233, 5383 }, // SA Western Standard Time / British Virgin Islands - { 129, 49, 5399 }, // W. Central Africa Standard Time / Congo Kinshasa - { 97, 178, 5415 }, // Sakhalin Standard Time / Russia - { 124, 226, 5429 }, // UTC+12 / United States Minor Outlying Islands - { 50, 83, 5442 }, // Greenwich Standard Time / Ghana - { 76, 154, 5455 }, // New Zealand Standard Time / New Zealand - { 23, 13, 5472 }, // Cen. Australia Standard Time / Australia - { 53, 77, 5513 }, // Hawaiian Standard Time / French Polynesia - { 50, 34, 5528 }, // Greenwich Standard Time / Burkina Faso - { 132, 78, 5547 }, // West Asia Standard Time / French Southern Territories - { 121, 0, 5564 }, // UTC-08 / AnyCountry - { 27, 2, 5574 }, // Central Europe Standard Time / Albania - { 107, 208, 5588 }, // Taipei Standard Time / Taiwan - { 88, 58, 5600 }, // Romance Standard Time / Denmark - { 36, 221, 5618 }, // E. Africa Standard Time / Uganda - { 95, 19, 5633 }, // SA Western Standard Time / Barbados - { 14, 15, 5650 }, // Azerbaijan Standard Time / Azerbaijan - { 32, 97, 5660 }, // China Standard Time / Hong Kong - { 110, 101, 5675 }, // Tokyo Standard Time / Indonesia - { 53, 225, 5689 }, // Hawaiian Standard Time / United States - { 36, 111, 5706 }, // E. Africa Standard Time / Kenya - { 134, 89, 5721 }, // West Pacific Standard Time / Guam - { 36, 254, 5734 }, // E. Africa Standard Time / South Sudan - { 48, 71, 5746 }, // GMT Standard Time / Faroe Islands - { 90, 178, 5762 }, // Russia Time Zone 10 / Russia - { 119, 158, 5781 }, // UTC-11 / Niue - { 129, 3, 5794 }, // W. Central Africa Standard Time / Algeria - { 110, 62, 5809 }, // Tokyo Standard Time / East Timor - { 93, 30, 5819 }, // SA Eastern Standard Time / Brazil - { 27, 242, 5898 }, // Central Europe Standard Time / Montenegro - { 129, 37, 5915 }, // W. Central Africa Standard Time / Cameroon - { 101, 117, 5929 }, // SE Asia Standard Time / Laos - { 85, 139, 5944 }, // Pacific Standard Time (Mexico) / Mexico - { 50, 212, 5981 }, // Greenwich Standard Time / Togo - { 46, 118, 5993 }, // FLE Standard Time / Latvia - { 95, 38, 6005 }, // SA Western Standard Time / Canada - { 132, 209, 6026 }, // West Asia Standard Time / Tajikistan - { 77, 38, 6040 }, // Newfoundland Standard Time / Canada - { 110, 108, 6057 }, // Tokyo Standard Time / Japan - { 25, 0, 6068 }, // Central Asia Standard Time / AnyCountry - { 28, 27, 6078 }, // Central European Standard Time / Bosnia And Herzegowina - { 27, 191, 6094 }, // Central Europe Standard Time / Slovakia - { 95, 93, 6112 }, // SA Western Standard Time / Guyana - { 48, 197, 6127 }, // GMT Standard Time / Spain - { 19, 167, 6143 }, // Bougainville Standard Time / Papua New Guinea - { 5, 17, 6164 }, // Arab Standard Time / Bahrain - { 24, 90, 6177 }, // Central America Standard Time / Guatemala - { 95, 26, 6195 }, // SA Western Standard Time / Bolivia - { 81, 113, 6210 }, // North Korea Standard Time / North Korea - { 119, 4, 6225 }, // UTC-11 / American Samoa - { 66, 176, 6243 }, // Mauritius Standard Time / Reunion - { 103, 120, 6258 }, // South Africa Standard Time / Lesotho - { 84, 0, 6272 }, // Pacific Standard Time / AnyCountry - { 120, 0, 6280 }, // UTC-09 / AnyCountry - { 129, 216, 6290 }, // W. Central Africa Standard Time / Tunisia - { 99, 185, 6303 }, // Sao Tome Standard Time / Sao Tome And Principe - { 100, 178, 6319 }, // Saratov Standard Time / Russia - { 105, 201, 6334 }, // Sudan Standard Time / Sudan - { 48, 252, 6350 }, // GMT Standard Time / Jersey - { 29, 13, 6364 }, // Central Pacific Standard Time / Australia - { 71, 139, 6385 }, // Mountain Standard Time / Mexico - { 21, 39, 6401 }, // Cape Verde Standard Time / Cape Verde - { 102, 101, 6421 }, // Singapore Standard Time / Indonesia - { 27, 192, 6435 }, // Central Europe Standard Time / Slovenia - { 48, 75, 6452 }, // GMT Standard Time / Guernsey - { 132, 8, 6468 }, // West Asia Standard Time / Antarctica - { 8, 10, 6486 }, // Argentina Standard Time / Argentina - { 98, 183, 6759 }, // Samoa Standard Time / Samoa - { 129, 41, 6772 }, // W. Central Africa Standard Time / Central African Republic - { 111, 178, 6786 }, // Tomsk Standard Time / Russia - { 110, 164, 6797 }, // Tokyo Standard Time / Palau - { 11, 13, 6811 }, // AUS Central Standard Time / Australia - { 121, 171, 6828 }, // UTC-08 / Pitcairn - { 102, 32, 6845 }, // Singapore Standard Time / Brunei - { 112, 214, 6857 }, // Tonga Standard Time / Tonga - { 89, 178, 6875 }, // Russia Time Zone 3 / Russia - { 128, 13, 6889 }, // W. Australia Standard Time / Australia - { 28, 172, 6905 }, // Central European Standard Time / Poland - { 72, 46, 6919 }, // Myanmar Standard Time / Cocos Islands - { 66, 188, 6932 }, // Mauritius Standard Time / Seychelles - { 84, 225, 6944 }, // Pacific Standard Time / United States - { 54, 100, 6983 }, // India Standard Time / India - { 50, 53, 6997 }, // Greenwich Standard Time / Ivory Coast - { 24, 0, 7012 }, // Central America Standard Time / AnyCountry - { 29, 229, 7022 }, // Central Pacific Standard Time / Vanuatu - { 130, 125, 7036 }, // W. Europe Standard Time / Luxembourg - { 50, 132, 7054 }, // Greenwich Standard Time / Mali - { 103, 179, 7068 }, // South Africa Standard Time / Rwanda - { 5, 175, 7082 }, // Arab Standard Time / Qatar - { 86, 163, 7093 }, // Pakistan Standard Time / Pakistan - { 134, 0, 7106 }, // West Pacific Standard Time / AnyCountry - { 36, 59, 7117 }, // E. Africa Standard Time / Djibouti - { 44, 178, 7133 }, // Ekaterinburg Standard Time / Russia - { 118, 38, 7152 }, // US Mountain Standard Time / Canada - { 36, 138, 7209 }, // E. Africa Standard Time / Mayotte - { 28, 127, 7224 }, // Central European Standard Time / Macedonia - { 59, 114, 7238 }, // Korea Standard Time / South Korea - { 93, 202, 7249 }, // SA Eastern Standard Time / Suriname - { 130, 205, 7268 }, // W. Europe Standard Time / Sweden - { 103, 49, 7285 }, // South Africa Standard Time / Congo Kinshasa - { 0, 0, 0 } // Trailing zeroes -}; - -// Windows ID Key, Windows ID Index, IANA ID Index, UTC Offset -static const QWindowsData windowsDataTable[] = { - { 1, 0, 4141, 16200 }, // Afghanistan Standard Time - { 2, 26, 7303,-32400 }, // Alaskan Standard Time - { 3, 48, 4406,-36000 }, // Aleutian Standard Time - { 4, 71, 325, 25200 }, // Altai Standard Time - { 5, 91, 4689, 10800 }, // Arab Standard Time - { 6, 110, 5180, 14400 }, // Arabian Standard Time - { 7, 132, 953, 10800 }, // Arabic Standard Time - { 8, 153, 7321,-10800 }, // Argentina Standard Time - { 9, 177, 7342, 14400 }, // Astrakhan Standard Time - { 10, 201, 7359,-14400 }, // Atlantic Standard Time - { 11, 224, 6811, 34200 }, // AUS Central Standard Time - { 12, 250, 2225, 31500 }, // Aus Central W. Standard Time - { 13, 279, 7375, 36000 }, // AUS Eastern Standard Time - { 14, 305, 5650, 14400 }, // Azerbaijan Standard Time - { 15, 330, 4213, -3600 }, // Azores Standard Time - { 16, 351, 4923,-10800 }, // Bahia Standard Time - { 17, 371, 4239, 21600 }, // Bangladesh Standard Time - { 18, 396, 5049, 10800 }, // Belarus Standard Time - { 19, 418, 6143, 39600 }, // Bougainville Standard Time - { 20, 445, 7392,-21600 }, // Canada Central Standard Time - { 21, 474, 6401, -3600 }, // Cape Verde Standard Time - { 22, 499, 1138, 14400 }, // Caucasus Standard Time - { 23, 522, 7407, 34200 }, // Cen. Australia Standard Time - { 24, 551, 6177,-21600 }, // Central America Standard Time - { 25, 581, 7426, 21600 }, // Central Asia Standard Time - { 26, 608, 7438,-14400 }, // Central Brazilian Standard Time - { 27, 640, 3077, 3600 }, // Central Europe Standard Time - { 28, 669, 6905, 3600 }, // Central European Standard Time - { 29, 700, 5219, 39600 }, // Central Pacific Standard Time - { 30, 730, 7453,-21600 }, // Central Standard Time (Mexico) - { 31, 761, 7473,-21600 }, // Central Standard Time - { 32, 783, 48, 28800 }, // China Standard Time - { 33, 803, 114, 45900 }, // Chatham Islands Standard Time - { 34, 833, 3258,-18000 }, // Cuba Standard Time - { 35, 852, 4103,-43200 }, // Dateline Standard Time - { 36, 875, 5706, 10800 }, // E. Africa Standard Time - { 37, 899, 7489, 36000 }, // E. Australia Standard Time - { 38, 926, 4775, 7200 }, // E. Europe Standard Time - { 39, 950, 451,-10800 }, // E. South America Standard Time - { 40, 981, 4937,-21600 }, // Easter Island Standard Time - { 41, 1009, 7508,-18000 }, // Eastern Standard Time - { 42, 1031, 2938,-18000 }, // Eastern Standard Time (Mexico) - { 43, 1062, 2284, 7200 }, // Egypt Standard Time - { 44, 1082, 7133, 18000 }, // Ekaterinburg Standard Time - { 45, 1109, 3985, 43200 }, // Fiji Standard Time - { 46, 1128, 7525, 7200 }, // FLE Standard Time - { 47, 1146, 5239, 14400 }, // Georgian Standard Time - { 48, 1169, 3180, 0 }, // GMT Standard Time - { 49, 1187, 3029,-10800 }, // Greenland Standard Time - { 50, 1211, 3239, 0 }, // Greenwich Standard Time - { 51, 1235, 2332, 7200 }, // GTB Standard Time - { 52, 1253, 25,-18000 }, // Haiti Standard Time - { 53, 1273, 5689,-36000 }, // Hawaiian Standard Time - { 54, 1296, 6983, 19800 }, // India Standard Time - { 55, 1316, 1271, 12600 }, // Iran Standard Time - { 56, 1335, 2192, 7200 }, // Israel Standard Time - { 57, 1356, 1242, 7200 }, // Jordan Standard Time - { 58, 1377, 5121, 7200 }, // Kaliningrad Standard Time - { 59, 1403, 7238, 32400 }, // Korea Standard Time - { 60, 1423, 3618, 7200 }, // Libya Standard Time - { 61, 1443, 4639, 50400 }, // Line Islands Standard Time - { 62, 1470, 3113, 37800 }, // Lord Howe Standard Time - { 63, 1494, 2758, 36000 }, // Magadan Standard Time - { 64, 1516, 1054,-10800 }, // Magallanes Standard Time - { 65, 1541, 4586,-34200 }, // Marquesas Standard Time - { 66, 1565, 1863, 14400 }, // Mauritius Standard Time - { 67, 1589, 3665, 7200 }, // Middle East Standard Time - { 68, 1615, 3194,-10800 }, // Montevideo Standard Time - { 69, 1640, 2125, 0 }, // Morocco Standard Time - { 70, 1662, 7537,-25200 }, // Mountain Standard Time (Mexico) - { 71, 1694, 7555,-25200 }, // Mountain Standard Time - { 72, 1717, 657, 23400 }, // Myanmar Standard Time - { 73, 1739, 4351, 21600 }, // N. Central Asia Standard Time - { 74, 1769, 3687, 3600 }, // Namibia Standard Time - { 75, 1791, 793, 20700 }, // Nepal Standard Time - { 76, 1811, 5455, 43200 }, // New Zealand Standard Time - { 77, 1837, 6040,-12600 }, // Newfoundland Standard Time - { 78, 1864, 752, 39600 }, // Norfolk Standard Time - { 79, 1886, 2534, 28800 }, // North Asia East Standard Time - { 80, 1916, 7570, 25200 }, // North Asia Standard Time - { 81, 1941, 6210, 30600 }, // North Korea Standard Time - { 82, 1967, 3608, 21600 }, // Omsk Standard Time - { 83, 1986, 4701,-10800 }, // Pacific SA Standard Time - { 84, 2011, 7587,-28800 }, // Pacific Standard Time - { 85, 2033, 7607,-28800 }, // Pacific Standard Time (Mexico) - { 86, 2064, 7093, 18000 }, // Pakistan Standard Time - { 87, 2087, 1225,-14400 }, // Paraguay Standard Time - { 88, 2110, 570, 3600 }, // Romance Standard Time - { 89, 2132, 6875, 14400 }, // Russia Time Zone 3 - { 90, 2151, 5762, 39600 }, // Russia Time Zone 10 - { 91, 2171, 7623, 43200 }, // Russia Time Zone 11 - { 92, 2191, 7638, 10800 }, // Russian Standard Time - { 93, 2213, 4881,-10800 }, // SA Eastern Standard Time - { 94, 2238, 3524,-18000 }, // SA Pacific Standard Time - { 95, 2263, 6195,-14400 }, // SA Western Standard Time - { 96, 2288, 4658,-10800 }, // Saint Pierre Standard Time - { 97, 2315, 5415, 39600 }, // Sakhalin Standard Time - { 98, 2338, 6759, 46800 }, // Samoa Standard Time - { 99, 2358, 6303, 0 }, // Sao Tome Standard Time - { 100, 2381, 6319, 14400 }, // Saratov Standard Time - { 101, 2403, 5206, 25200 }, // SE Asia Standard Time - { 102, 2425, 3825, 28800 }, // Singapore Standard Time - { 103, 2449, 4806, 7200 }, // South Africa Standard Time - { 104, 2476, 1447, 19800 }, // Sri Lanka Standard Time - { 105, 2500, 6334, 7200 }, // Sudan Standard Time - { 106, 2520, 4867, 7200 }, // Syria Standard Time - { 107, 2540, 5588, 28800 }, // Taipei Standard Time - { 108, 2561, 7652, 36000 }, // Tasmania Standard Time - { 109, 2584, 1253,-10800 }, // Tocantins Standard Time - { 110, 2608, 6057, 32400 }, // Tokyo Standard Time - { 111, 2628, 6786, 25200 }, // Tomsk Standard Time - { 112, 2648, 6857, 46800 }, // Tonga Standard Time - { 113, 2668, 5356, 32400 }, // Transbaikal Standard Time - { 114, 2694, 4390, 7200 }, // Turkey Standard Time - { 115, 2715, 2143,-14400 }, // Turks And Caicos Standard Time - { 116, 2746, 7669, 28800 }, // Ulaanbaatar Standard Time - { 117, 2772, 7686,-18000 }, // US Eastern Standard Time - { 118, 2797, 3998,-25200 }, // US Mountain Standard Time - { 119, 2823, 1075,-39600 }, // UTC-11 - { 120, 2830, 6280,-32400 }, // UTC-09 - { 121, 2837, 5564,-28800 }, // UTC-08 - { 122, 2844, 4857, -7200 }, // UTC-02 - { 123, 2851, 7707, 0 }, // UTC - { 124, 2855, 3213, 43200 }, // UTC+12 - { 125, 2862, 1502, 46800 }, // UTC+13 - { 126, 2869, 3703,-16200 }, // Venezuela Standard Time - { 127, 2893, 7715, 36000 }, // Vladivostok Standard Time - { 128, 2919, 6889, 28800 }, // W. Australia Standard Time - { 129, 2946, 5093, 3600 }, // W. Central Africa Standard Time - { 130, 2978, 7732, 3600 }, // W. Europe Standard Time - { 131, 3002, 0, 25200 }, // W. Mongolia Standard Time - { 132, 3028, 7746, 18000 }, // West Asia Standard Time - { 133, 3052, 7760, 7200 }, // West Bank Standard Time - { 134, 3076, 377, 36000 }, // West Pacific Standard Time - { 135, 3103, 7772, 32400 }, // Yakutsk Standard Time - { 0, 0, 0, 0 } // Trailing zeroes -}; - -// IANA ID Index, UTC Offset -static const QUtcData utcDataTable[] = { - { 7785, 0 }, // UTC - { 7789,-50400 }, // UTC-14:00 - { 7799,-46800 }, // UTC-13:00 - { 7809,-43200 }, // UTC-12:00 - { 7819,-39600 }, // UTC-11:00 - { 7829,-36000 }, // UTC-10:00 - { 7839,-32400 }, // UTC-09:00 - { 7849,-28800 }, // UTC-08:00 - { 7859,-25200 }, // UTC-07:00 - { 7869,-21600 }, // UTC-06:00 - { 7879,-18000 }, // UTC-05:00 - { 7889,-16200 }, // UTC-04:30 - { 7899,-14400 }, // UTC-04:00 - { 7909,-12600 }, // UTC-03:30 - { 7919,-10800 }, // UTC-03:00 - { 7929, -7200 }, // UTC-02:00 - { 7939, -3600 }, // UTC-01:00 - { 7949, 0 }, // UTC-00:00 - { 7959, 0 }, // UTC+00:00 - { 7969, 3600 }, // UTC+01:00 - { 7979, 7200 }, // UTC+02:00 - { 7989, 10800 }, // UTC+03:00 - { 7999, 12600 }, // UTC+03:30 - { 8009, 14400 }, // UTC+04:00 - { 8019, 16200 }, // UTC+04:30 - { 8029, 18000 }, // UTC+05:00 - { 8039, 19800 }, // UTC+05:30 - { 8049, 20700 }, // UTC+05:45 - { 8059, 21600 }, // UTC+06:00 - { 8069, 23400 }, // UTC+06:30 - { 8079, 25200 }, // UTC+07:00 - { 8089, 28800 }, // UTC+08:00 - { 8099, 30600 }, // UTC+08:30 - { 8109, 32400 }, // UTC+09:00 - { 8119, 34200 }, // UTC+09:30 - { 8129, 36000 }, // UTC+10:00 - { 8139, 39600 }, // UTC+11:00 - { 8149, 43200 }, // UTC+12:00 - { 8159, 46800 }, // UTC+13:00 - { 8169, 50400 }, // UTC+14:00 - { 0, 0 } // Trailing zeroes -}; - -static const char windowsIdData[] = { -0x41, 0x66, 0x67, 0x68, 0x61, 0x6e, 0x69, 0x73, 0x74, 0x61, 0x6e, 0x20, 0x53, 0x74, 0x61, 0x6e, 0x64, 0x61, 0x72, 0x64, -0x20, 0x54, 0x69, 0x6d, 0x65, 0x0, 0x41, 0x6c, 0x61, 0x73, 0x6b, 0x61, 0x6e, 0x20, 0x53, 0x74, 0x61, 0x6e, 0x64, 0x61, -0x72, 0x64, 0x20, 0x54, 0x69, 0x6d, 0x65, 0x0, 0x41, 0x6c, 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-/**************************************************************************** -** -** Copyright (C) 2013 John Layt <jlayt@kde.org> -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtCore module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qtimezone.h" -#include "qtimezoneprivate_p.h" - -#include <unicode/ucal.h> - -#include <qdebug.h> -#include <qlist.h> - -#include <algorithm> - -QT_BEGIN_NAMESPACE - -/* - Private - - ICU implementation -*/ - -// ICU utilities - -// Convert TimeType and NameType into ICU UCalendarDisplayNameType -static UCalendarDisplayNameType ucalDisplayNameType(QTimeZone::TimeType timeType, QTimeZone::NameType nameType) -{ - // TODO ICU C UCalendarDisplayNameType does not support full set of C++ TimeZone::EDisplayType - switch (nameType) { - case QTimeZone::ShortName : - case QTimeZone::OffsetName : - if (timeType == QTimeZone::DaylightTime) - return UCAL_SHORT_DST; - // Includes GenericTime - return UCAL_SHORT_STANDARD; - case QTimeZone::DefaultName : - case QTimeZone::LongName : - if (timeType == QTimeZone::DaylightTime) - return UCAL_DST; - // Includes GenericTime - return UCAL_STANDARD; - } - return UCAL_STANDARD; -} - -// Qt wrapper around ucal_getDefaultTimeZone() -static QByteArray ucalDefaultTimeZoneId() -{ - int32_t size = 30; - QString result(size, Qt::Uninitialized); - UErrorCode status = U_ZERO_ERROR; - - // size = ucal_getDefaultTimeZone(result, resultLength, status) - size = ucal_getDefaultTimeZone(reinterpret_cast<UChar *>(result.data()), size, &status); - - // If overflow, then resize and retry - if (status == U_BUFFER_OVERFLOW_ERROR) { - result.resize(size); - status = U_ZERO_ERROR; - size = ucal_getDefaultTimeZone(reinterpret_cast<UChar *>(result.data()), size, &status); - } - - // If successful on first or second go, resize and return - if (U_SUCCESS(status)) { - result.resize(size); - return std::move(result).toUtf8(); - } - - return QByteArray(); -} - -// Qt wrapper around ucal_getTimeZoneDisplayName() -static QString ucalTimeZoneDisplayName(UCalendar *ucal, QTimeZone::TimeType timeType, - QTimeZone::NameType nameType, - const QString &localeCode) -{ - int32_t size = 50; - QString result(size, Qt::Uninitialized); - UErrorCode status = U_ZERO_ERROR; - - // size = ucal_getTimeZoneDisplayName(cal, type, locale, result, resultLength, status) - size = ucal_getTimeZoneDisplayName(ucal, - ucalDisplayNameType(timeType, nameType), - localeCode.toUtf8(), - reinterpret_cast<UChar *>(result.data()), - size, - &status); - - // If overflow, then resize and retry - if (status == U_BUFFER_OVERFLOW_ERROR) { - result.resize(size); - status = U_ZERO_ERROR; - size = ucal_getTimeZoneDisplayName(ucal, - ucalDisplayNameType(timeType, nameType), - localeCode.toUtf8(), - reinterpret_cast<UChar *>(result.data()), - size, - &status); - } - - // If successful on first or second go, resize and return - if (U_SUCCESS(status)) { - result.resize(size); - return result; - } - - return QString(); -} - -// Qt wrapper around ucal_get() for offsets -static bool ucalOffsetsAtTime(UCalendar *m_ucal, qint64 atMSecsSinceEpoch, - int *utcOffset, int *dstOffset) -{ - *utcOffset = 0; - *dstOffset = 0; - - // Clone the ucal so we don't change the shared object - UErrorCode status = U_ZERO_ERROR; - UCalendar *ucal = ucal_clone(m_ucal, &status); - if (!U_SUCCESS(status)) - return false; - - // Set the date to find the offset for - status = U_ZERO_ERROR; - ucal_setMillis(ucal, atMSecsSinceEpoch, &status); - - int32_t utc = 0; - if (U_SUCCESS(status)) { - status = U_ZERO_ERROR; - // Returns msecs - utc = ucal_get(ucal, UCAL_ZONE_OFFSET, &status) / 1000; - } - - int32_t dst = 0; - if (U_SUCCESS(status)) { - status = U_ZERO_ERROR; - // Returns msecs - dst = ucal_get(ucal, UCAL_DST_OFFSET, &status) / 1000; - } - - ucal_close(ucal); - if (U_SUCCESS(status)) { - *utcOffset = utc; - *dstOffset = dst; - return true; - } - return false; -} - -// ICU Draft api in v50, should be stable in ICU v51. Available in C++ api from ICU v3.8 -#if U_ICU_VERSION_MAJOR_NUM == 50 -// Qt wrapper around qt_ucal_getTimeZoneTransitionDate & ucal_get -static QTimeZonePrivate::Data ucalTimeZoneTransition(UCalendar *m_ucal, - UTimeZoneTransitionType type, - qint64 atMSecsSinceEpoch) -{ - QTimeZonePrivate::Data tran = QTimeZonePrivate::invalidData(); - - // Clone the ucal so we don't change the shared object - UErrorCode status = U_ZERO_ERROR; - UCalendar *ucal = ucal_clone(m_ucal, &status); - if (!U_SUCCESS(status)) - return tran; - - // Set the date to find the transition for - status = U_ZERO_ERROR; - ucal_setMillis(ucal, atMSecsSinceEpoch, &status); - - // Find the transition time - UDate tranMSecs = 0; - status = U_ZERO_ERROR; - bool ok = ucal_getTimeZoneTransitionDate(ucal, type, &tranMSecs, &status); - - // Set the transition time to find the offsets for - if (U_SUCCESS(status) && ok) { - status = U_ZERO_ERROR; - ucal_setMillis(ucal, tranMSecs, &status); - } - - int32_t utc = 0; - if (U_SUCCESS(status) && ok) { - status = U_ZERO_ERROR; - utc = ucal_get(ucal, UCAL_ZONE_OFFSET, &status) / 1000; - } - - int32_t dst = 0; - if (U_SUCCESS(status) && ok) { - status = U_ZERO_ERROR; - dst = ucal_get(ucal, UCAL_DST_OFFSET, &status) / 1000; - } - - ucal_close(ucal); - if (!U_SUCCESS(status) || !ok) - return tran; - tran.atMSecsSinceEpoch = tranMSecs; - tran.offsetFromUtc = utc + dst; - tran.standardTimeOffset = utc; - tran.daylightTimeOffset = dst; - // TODO No ICU API, use short name instead - if (dst == 0) - tran.abbreviation = ucalTimeZoneDisplayName(m_ucal, QTimeZone::StandardTime, - QTimeZone::ShortName, QLocale().name()); - else - tran.abbreviation = ucalTimeZoneDisplayName(m_ucal, QTimeZone::DaylightTime, - QTimeZone::ShortName, QLocale().name()); - return tran; -} -#endif // U_ICU_VERSION_SHORT - -// Convert a uenum to a QList<QByteArray> -static QList<QByteArray> uenumToIdList(UEnumeration *uenum) -{ - QList<QByteArray> list; - int32_t size = 0; - UErrorCode status = U_ZERO_ERROR; - // TODO Perhaps use uenum_unext instead? - QByteArray result = uenum_next(uenum, &size, &status); - while (U_SUCCESS(status) && !result.isEmpty()) { - list << result; - status = U_ZERO_ERROR; - result = uenum_next(uenum, &size, &status); - } - std::sort(list.begin(), list.end()); - list.erase(std::unique(list.begin(), list.end()), list.end()); - return list; -} - -// Qt wrapper around ucal_getDSTSavings() -static int ucalDaylightOffset(const QByteArray &id) -{ - UErrorCode status = U_ZERO_ERROR; - const int32_t dstMSecs = ucal_getDSTSavings(reinterpret_cast<const UChar *>(id.data()), &status); - if (U_SUCCESS(status)) - return (dstMSecs / 1000); - else - return 0; -} - -// Create the system default time zone -QIcuTimeZonePrivate::QIcuTimeZonePrivate() - : m_ucal(0) -{ - // TODO No ICU C API to obtain sysem tz, assume default hasn't been changed - init(ucalDefaultTimeZoneId()); -} - -// Create a named time zone -QIcuTimeZonePrivate::QIcuTimeZonePrivate(const QByteArray &ianaId) - : m_ucal(0) -{ - // Need to check validity here as ICu will create a GMT tz if name is invalid - if (availableTimeZoneIds().contains(ianaId)) - init(ianaId); -} - -QIcuTimeZonePrivate::QIcuTimeZonePrivate(const QIcuTimeZonePrivate &other) - : QTimeZonePrivate(other), m_ucal(0) -{ - // Clone the ucal so we don't close the shared object - UErrorCode status = U_ZERO_ERROR; - m_ucal = ucal_clone(other.m_ucal, &status); - if (!U_SUCCESS(status)) { - m_id.clear(); - m_ucal = 0; - } -} - -QIcuTimeZonePrivate::~QIcuTimeZonePrivate() -{ - ucal_close(m_ucal); -} - -QIcuTimeZonePrivate *QIcuTimeZonePrivate::clone() const -{ - return new QIcuTimeZonePrivate(*this); -} - -void QIcuTimeZonePrivate::init(const QByteArray &ianaId) -{ - m_id = ianaId; - - const QString id = QString::fromUtf8(m_id); - UErrorCode status = U_ZERO_ERROR; - //TODO Use UCAL_GREGORIAN for now to match QLocale, change to UCAL_DEFAULT once full ICU support - m_ucal = ucal_open(reinterpret_cast<const UChar *>(id.data()), id.size(), - QLocale().name().toUtf8(), UCAL_GREGORIAN, &status); - - if (!U_SUCCESS(status)) { - m_id.clear(); - m_ucal = 0; - } -} - -QString QIcuTimeZonePrivate::displayName(QTimeZone::TimeType timeType, - QTimeZone::NameType nameType, - const QLocale &locale) const -{ - // Return standard offset format name as ICU C api doesn't support it yet - if (nameType == QTimeZone::OffsetName) { - const Data nowData = data(QDateTime::currentMSecsSinceEpoch()); - // We can't use transitions reliably to find out right dst offset - // Instead use dst offset api to try get it if needed - if (timeType == QTimeZone::DaylightTime) - return isoOffsetFormat(nowData.standardTimeOffset + ucalDaylightOffset(m_id)); - else - return isoOffsetFormat(nowData.standardTimeOffset); - } - return ucalTimeZoneDisplayName(m_ucal, timeType, nameType, locale.name()); -} - -QString QIcuTimeZonePrivate::abbreviation(qint64 atMSecsSinceEpoch) const -{ - // TODO No ICU API, use short name instead - if (isDaylightTime(atMSecsSinceEpoch)) - return displayName(QTimeZone::DaylightTime, QTimeZone::ShortName, QString()); - else - return displayName(QTimeZone::StandardTime, QTimeZone::ShortName, QString()); -} - -int QIcuTimeZonePrivate::offsetFromUtc(qint64 atMSecsSinceEpoch) const -{ - int stdOffset = 0; - int dstOffset = 0; - ucalOffsetsAtTime(m_ucal, atMSecsSinceEpoch, &stdOffset, & dstOffset); - return stdOffset + dstOffset; -} - -int QIcuTimeZonePrivate::standardTimeOffset(qint64 atMSecsSinceEpoch) const -{ - int stdOffset = 0; - int dstOffset = 0; - ucalOffsetsAtTime(m_ucal, atMSecsSinceEpoch, &stdOffset, & dstOffset); - return stdOffset; -} - -int QIcuTimeZonePrivate::daylightTimeOffset(qint64 atMSecsSinceEpoch) const -{ - int stdOffset = 0; - int dstOffset = 0; - ucalOffsetsAtTime(m_ucal, atMSecsSinceEpoch, &stdOffset, & dstOffset); - return dstOffset; -} - -bool QIcuTimeZonePrivate::hasDaylightTime() const -{ - // TODO No direct ICU C api, work-around below not reliable? Find a better way? - return (ucalDaylightOffset(m_id) != 0); -} - -bool QIcuTimeZonePrivate::isDaylightTime(qint64 atMSecsSinceEpoch) const -{ - // Clone the ucal so we don't change the shared object - UErrorCode status = U_ZERO_ERROR; - UCalendar *ucal = ucal_clone(m_ucal, &status); - if (!U_SUCCESS(status)) - return false; - - // Set the date to find the offset for - status = U_ZERO_ERROR; - ucal_setMillis(ucal, atMSecsSinceEpoch, &status); - - bool result = false; - if (U_SUCCESS(status)) { - status = U_ZERO_ERROR; - result = ucal_inDaylightTime(ucal, &status); - } - - ucal_close(ucal); - return result; -} - -QTimeZonePrivate::Data QIcuTimeZonePrivate::data(qint64 forMSecsSinceEpoch) const -{ - // Available in ICU C++ api, and draft C api in v50 - // TODO When v51 released see if api is stable - QTimeZonePrivate::Data data = invalidData(); -#if U_ICU_VERSION_MAJOR_NUM == 50 - data = ucalTimeZoneTransition(m_ucal, UCAL_TZ_TRANSITION_PREVIOUS_INCLUSIVE, - forMSecsSinceEpoch); -#else - ucalOffsetsAtTime(m_ucal, forMSecsSinceEpoch, &data.standardTimeOffset, - &data.daylightTimeOffset); - data.offsetFromUtc = data.standardTimeOffset + data.daylightTimeOffset; - data.abbreviation = abbreviation(forMSecsSinceEpoch); -#endif // U_ICU_VERSION_MAJOR_NUM == 50 - data.atMSecsSinceEpoch = forMSecsSinceEpoch; - return data; -} - -bool QIcuTimeZonePrivate::hasTransitions() const -{ - // Available in ICU C++ api, and draft C api in v50 - // TODO When v51 released see if api is stable -#if U_ICU_VERSION_MAJOR_NUM == 50 - return true; -#else - return false; -#endif // U_ICU_VERSION_MAJOR_NUM == 50 -} - -QTimeZonePrivate::Data QIcuTimeZonePrivate::nextTransition(qint64 afterMSecsSinceEpoch) const -{ - // Available in ICU C++ api, and draft C api in v50 - // TODO When v51 released see if api is stable -#if U_ICU_VERSION_MAJOR_NUM == 50 - return ucalTimeZoneTransition(m_ucal, UCAL_TZ_TRANSITION_NEXT, afterMSecsSinceEpoch); -#else - Q_UNUSED(afterMSecsSinceEpoch) - return invalidData(); -#endif // U_ICU_VERSION_MAJOR_NUM == 50 -} - -QTimeZonePrivate::Data QIcuTimeZonePrivate::previousTransition(qint64 beforeMSecsSinceEpoch) const -{ - // Available in ICU C++ api, and draft C api in v50 - // TODO When v51 released see if api is stable -#if U_ICU_VERSION_MAJOR_NUM == 50 - return ucalTimeZoneTransition(m_ucal, UCAL_TZ_TRANSITION_PREVIOUS, beforeMSecsSinceEpoch); -#else - Q_UNUSED(beforeMSecsSinceEpoch) - return invalidData(); -#endif // U_ICU_VERSION_MAJOR_NUM == 50 -} - -QByteArray QIcuTimeZonePrivate::systemTimeZoneId() const -{ - // No ICU C API to obtain sysem tz - // TODO Assume default hasn't been changed and is the latests system - return ucalDefaultTimeZoneId(); -} - -QList<QByteArray> QIcuTimeZonePrivate::availableTimeZoneIds() const -{ - UErrorCode status = U_ZERO_ERROR; - UEnumeration *uenum = ucal_openTimeZones(&status); - QList<QByteArray> result; - if (U_SUCCESS(status)) - result = uenumToIdList(uenum); - uenum_close(uenum); - return result; -} - -QList<QByteArray> QIcuTimeZonePrivate::availableTimeZoneIds(QLocale::Country country) const -{ - const QLatin1String regionCode = QLocalePrivate::countryToCode(country); - const QByteArray regionCodeUtf8 = QString(regionCode).toUtf8(); - UErrorCode status = U_ZERO_ERROR; - UEnumeration *uenum = ucal_openCountryTimeZones(regionCodeUtf8.data(), &status); - QList<QByteArray> result; - if (U_SUCCESS(status)) - result = uenumToIdList(uenum); - uenum_close(uenum); - return result; -} - -QList<QByteArray> QIcuTimeZonePrivate::availableTimeZoneIds(int offsetFromUtc) const -{ -// TODO Available directly in C++ api but not C api, from 4.8 onwards new filter method works -#if U_ICU_VERSION_MAJOR_NUM >= 49 || (U_ICU_VERSION_MAJOR_NUM == 4 && U_ICU_VERSION_MINOR_NUM == 8) - UErrorCode status = U_ZERO_ERROR; - UEnumeration *uenum = ucal_openTimeZoneIDEnumeration(UCAL_ZONE_TYPE_ANY, 0, - &offsetFromUtc, &status); - QList<QByteArray> result; - if (U_SUCCESS(status)) - result = uenumToIdList(uenum); - uenum_close(uenum); - return result; -#else - return QTimeZonePrivate::availableTimeZoneIds(offsetFromUtc); -#endif -} - -QT_END_NAMESPACE diff --git a/src/corelib/tools/qtimezoneprivate_mac.mm b/src/corelib/tools/qtimezoneprivate_mac.mm deleted file mode 100644 index d3c4fbe5da..0000000000 --- a/src/corelib/tools/qtimezoneprivate_mac.mm +++ /dev/null @@ -1,333 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2013 John Layt <jlayt@kde.org> -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtCore module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qtimezone.h" -#include "qtimezoneprivate_p.h" - -#include "private/qcore_mac_p.h" -#include "qstringlist.h" - -#include <Foundation/NSTimeZone.h> - -#include <qdebug.h> - -#include <algorithm> - -QT_BEGIN_NAMESPACE - -/* - Private - - OS X system implementation -*/ - -// Create the system default time zone -QMacTimeZonePrivate::QMacTimeZonePrivate() - : m_nstz(0) -{ - init(systemTimeZoneId()); -} - -// Create a named time zone -QMacTimeZonePrivate::QMacTimeZonePrivate(const QByteArray &ianaId) - : m_nstz(0) -{ - init(ianaId); -} - -QMacTimeZonePrivate::QMacTimeZonePrivate(const QMacTimeZonePrivate &other) - : QTimeZonePrivate(other), m_nstz(0) -{ - m_nstz = [other.m_nstz copy]; -} - -QMacTimeZonePrivate::~QMacTimeZonePrivate() -{ - [m_nstz release]; -} - -QMacTimeZonePrivate *QMacTimeZonePrivate::clone() const -{ - return new QMacTimeZonePrivate(*this); -} - -void QMacTimeZonePrivate::init(const QByteArray &ianaId) -{ - if (availableTimeZoneIds().contains(ianaId)) { - m_nstz = [[NSTimeZone timeZoneWithName:QString::fromUtf8(ianaId).toNSString()] retain]; - if (m_nstz) - m_id = ianaId; - } -} - -QString QMacTimeZonePrivate::comment() const -{ - return QString::fromNSString([m_nstz description]); -} - -QString QMacTimeZonePrivate::displayName(QTimeZone::TimeType timeType, - QTimeZone::NameType nameType, - const QLocale &locale) const -{ - // TODO Mac doesn't support OffsetName yet so use standard offset name - if (nameType == QTimeZone::OffsetName) { - const Data nowData = data(QDateTime::currentMSecsSinceEpoch()); - // TODO Cheat for now, assume if has dst the offset if 1 hour - if (timeType == QTimeZone::DaylightTime && hasDaylightTime()) - return isoOffsetFormat(nowData.standardTimeOffset + 3600); - else - return isoOffsetFormat(nowData.standardTimeOffset); - } - - NSTimeZoneNameStyle style = NSTimeZoneNameStyleStandard; - - switch (nameType) { - case QTimeZone::ShortName : - if (timeType == QTimeZone::DaylightTime) - style = NSTimeZoneNameStyleShortDaylightSaving; - else if (timeType == QTimeZone::GenericTime) - style = NSTimeZoneNameStyleShortGeneric; - else - style = NSTimeZoneNameStyleShortStandard; - break; - case QTimeZone::DefaultName : - case QTimeZone::LongName : - if (timeType == QTimeZone::DaylightTime) - style = NSTimeZoneNameStyleDaylightSaving; - else if (timeType == QTimeZone::GenericTime) - style = NSTimeZoneNameStyleGeneric; - else - style = NSTimeZoneNameStyleStandard; - break; - case QTimeZone::OffsetName : - // Unreachable - break; - } - - NSString *macLocaleCode = locale.name().toNSString(); - NSLocale *macLocale = [[NSLocale alloc] initWithLocaleIdentifier:macLocaleCode]; - const QString result = QString::fromNSString([m_nstz localizedName:style locale:macLocale]); - [macLocale release]; - return result; -} - -QString QMacTimeZonePrivate::abbreviation(qint64 atMSecsSinceEpoch) const -{ - const NSTimeInterval seconds = atMSecsSinceEpoch / 1000.0; - return QString::fromNSString([m_nstz abbreviationForDate:[NSDate dateWithTimeIntervalSince1970:seconds]]); -} - -int QMacTimeZonePrivate::offsetFromUtc(qint64 atMSecsSinceEpoch) const -{ - const NSTimeInterval seconds = atMSecsSinceEpoch / 1000.0; - return [m_nstz secondsFromGMTForDate:[NSDate dateWithTimeIntervalSince1970:seconds]]; -} - -int QMacTimeZonePrivate::standardTimeOffset(qint64 atMSecsSinceEpoch) const -{ - return offsetFromUtc(atMSecsSinceEpoch) - daylightTimeOffset(atMSecsSinceEpoch); -} - -int QMacTimeZonePrivate::daylightTimeOffset(qint64 atMSecsSinceEpoch) const -{ - const NSTimeInterval seconds = atMSecsSinceEpoch / 1000.0; - return [m_nstz daylightSavingTimeOffsetForDate:[NSDate dateWithTimeIntervalSince1970:seconds]]; -} - -bool QMacTimeZonePrivate::hasDaylightTime() const -{ - // TODO No Mac API, assume if has transitions - return hasTransitions(); -} - -bool QMacTimeZonePrivate::isDaylightTime(qint64 atMSecsSinceEpoch) const -{ - const NSTimeInterval seconds = atMSecsSinceEpoch / 1000.0; - return [m_nstz isDaylightSavingTimeForDate:[NSDate dateWithTimeIntervalSince1970:seconds]]; -} - -QTimeZonePrivate::Data QMacTimeZonePrivate::data(qint64 forMSecsSinceEpoch) const -{ - const NSTimeInterval seconds = forMSecsSinceEpoch / 1000.0; - NSDate *date = [NSDate dateWithTimeIntervalSince1970:seconds]; - Data data; - data.atMSecsSinceEpoch = forMSecsSinceEpoch; - data.offsetFromUtc = [m_nstz secondsFromGMTForDate:date]; - data.daylightTimeOffset = [m_nstz daylightSavingTimeOffsetForDate:date]; - data.standardTimeOffset = data.offsetFromUtc - data.daylightTimeOffset; - data.abbreviation = QString::fromNSString([m_nstz abbreviationForDate:date]); - return data; -} - -bool QMacTimeZonePrivate::hasTransitions() const -{ - // TODO No direct Mac API, so return if has next after 1970, i.e. since start of tz - // TODO Not sure what is returned in event of no transitions, assume will be before requested date - NSDate *epoch = [NSDate dateWithTimeIntervalSince1970:0]; - const NSDate *date = [m_nstz nextDaylightSavingTimeTransitionAfterDate:epoch]; - const bool result = ([date timeIntervalSince1970] > [epoch timeIntervalSince1970]); - return result; -} - -QTimeZonePrivate::Data QMacTimeZonePrivate::nextTransition(qint64 afterMSecsSinceEpoch) const -{ - QTimeZonePrivate::Data tran; - const NSTimeInterval seconds = afterMSecsSinceEpoch / 1000.0; - NSDate *nextDate = [NSDate dateWithTimeIntervalSince1970:seconds]; - nextDate = [m_nstz nextDaylightSavingTimeTransitionAfterDate:nextDate]; - const NSTimeInterval nextSecs = [nextDate timeIntervalSince1970]; - if (nextDate == nil || nextSecs <= seconds) { - [nextDate release]; - return invalidData(); - } - tran.atMSecsSinceEpoch = nextSecs * 1000; - tran.offsetFromUtc = [m_nstz secondsFromGMTForDate:nextDate]; - tran.daylightTimeOffset = [m_nstz daylightSavingTimeOffsetForDate:nextDate]; - tran.standardTimeOffset = tran.offsetFromUtc - tran.daylightTimeOffset; - tran.abbreviation = QString::fromNSString([m_nstz abbreviationForDate:nextDate]); - return tran; -} - -QTimeZonePrivate::Data QMacTimeZonePrivate::previousTransition(qint64 beforeMSecsSinceEpoch) const -{ - // The native API only lets us search forward, so we need to find an early-enough start: - const NSTimeInterval lowerBound = std::numeric_limits<NSTimeInterval>::lowest(); - const qint64 endSecs = beforeMSecsSinceEpoch / 1000; - const int year = 366 * 24 * 3600; // a (long) year, in seconds - NSTimeInterval prevSecs = endSecs; // sentinel for later check - NSTimeInterval nextSecs = prevSecs - year; - NSTimeInterval tranSecs = lowerBound; // time at a transition; may be > endSecs - - NSDate *nextDate = [NSDate dateWithTimeIntervalSince1970:nextSecs]; - nextDate = [m_nstz nextDaylightSavingTimeTransitionAfterDate:nextDate]; - if (nextDate != nil - && (tranSecs = [nextDate timeIntervalSince1970]) < endSecs) { - // There's a transition within the last year before endSecs: - nextSecs = tranSecs; - } else { - // Need to start our search earlier: - nextDate = [NSDate dateWithTimeIntervalSince1970:lowerBound]; - nextDate = [m_nstz nextDaylightSavingTimeTransitionAfterDate:nextDate]; - if (nextDate != nil) { - NSTimeInterval lateSecs = nextSecs; - nextSecs = [nextDate timeIntervalSince1970]; - Q_ASSERT(nextSecs <= endSecs - year || nextSecs == tranSecs); - /* - We're looking at the first ever transition for our zone, at - nextSecs (and our zone *does* have at least one transition). If - it's later than endSecs - year, then we must have found it on the - initial check and therefore set tranSecs to the same transition - time (which, we can infer here, is >= endSecs). In this case, we - won't enter the binary-chop loop, below. - - In the loop, nextSecs < lateSecs < endSecs: we have a transition - at nextSecs and there is no transition between lateSecs and - endSecs. The loop narrows the interval between nextSecs and - lateSecs by looking for a transition after their mid-point; if it - finds one < endSecs, nextSecs moves to this transition; otherwise, - lateSecs moves to the mid-point. This soon enough narrows the gap - to within a year, after which walking forward one transition at a - time (the "Wind through" loop, below) is good enough. - */ - - // Binary chop to within a year of last transition before endSecs: - while (nextSecs + year < lateSecs) { - // Careful about overflow, not fussy about rounding errors: - NSTimeInterval middle = nextSecs / 2 + lateSecs / 2; - NSDate *split = [NSDate dateWithTimeIntervalSince1970:middle]; - split = [m_nstz nextDaylightSavingTimeTransitionAfterDate:split]; - if (split != nil - && (tranSecs = [split timeIntervalSince1970]) < endSecs) { - nextDate = split; - nextSecs = tranSecs; - } else { - lateSecs = middle; - } - } - Q_ASSERT(nextDate != nil); - // ... and nextSecs < endSecs unless first transition ever was >= endSecs. - } // else: we have no data - prevSecs is still endSecs, nextDate is still nil - } - // Either nextDate is nil or nextSecs is at its transition. - - // Wind through remaining transitions (spanning at most a year), one at a time: - while (nextDate != nil && nextSecs < endSecs) { - prevSecs = nextSecs; - nextDate = [m_nstz nextDaylightSavingTimeTransitionAfterDate:nextDate]; - nextSecs = [nextDate timeIntervalSince1970]; - if (nextSecs <= prevSecs) // presumably no later data available - break; - } - if (prevSecs < endSecs) // i.e. we did make it into that while loop - return data(qint64(prevSecs * 1e3)); - - // No transition data; or first transition later than requested time. - return invalidData(); -} - -QByteArray QMacTimeZonePrivate::systemTimeZoneId() const -{ - // Reset the cached system tz then return the name - [NSTimeZone resetSystemTimeZone]; - return QString::fromNSString([[NSTimeZone systemTimeZone] name]).toUtf8(); -} - -QList<QByteArray> QMacTimeZonePrivate::availableTimeZoneIds() const -{ - NSEnumerator *enumerator = [[NSTimeZone knownTimeZoneNames] objectEnumerator]; - QByteArray tzid = QString::fromNSString([enumerator nextObject]).toUtf8(); - - QList<QByteArray> list; - while (!tzid.isEmpty()) { - list << tzid; - tzid = QString::fromNSString([enumerator nextObject]).toUtf8(); - } - - std::sort(list.begin(), list.end()); - list.erase(std::unique(list.begin(), list.end()), list.end()); - - return list; -} - -NSTimeZone *QMacTimeZonePrivate::nsTimeZone() const -{ - return m_nstz; -} - -QT_END_NAMESPACE diff --git a/src/corelib/tools/qtimezoneprivate_p.h b/src/corelib/tools/qtimezoneprivate_p.h deleted file mode 100644 index b5e9286f6a..0000000000 --- a/src/corelib/tools/qtimezoneprivate_p.h +++ /dev/null @@ -1,493 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2013 John Layt <jlayt@kde.org> -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtCore module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - - -#ifndef QTIMEZONEPRIVATE_P_H -#define QTIMEZONEPRIVATE_P_H - -// -// W A R N I N G -// ------------- -// -// This file is not part of the Qt API. It exists for the convenience -// of internal files. This header file may change from version to version -// without notice, or even be removed. -// -// We mean it. -// - -#include "qtimezone.h" -#include "qlocale_p.h" -#include "qvector.h" - -#if QT_CONFIG(icu) -#include <unicode/ucal.h> -#endif - -#ifdef Q_OS_DARWIN -Q_FORWARD_DECLARE_OBJC_CLASS(NSTimeZone); -#endif // Q_OS_DARWIN - -#ifdef Q_OS_WIN -#include <qt_windows.h> -#endif // Q_OS_WIN - -#if defined(Q_OS_ANDROID) && !defined(Q_OS_ANDROID_EMBEDDED) -#include <QtCore/private/qjni_p.h> -#endif - -QT_BEGIN_NAMESPACE - -class Q_AUTOTEST_EXPORT QTimeZonePrivate : public QSharedData -{ -public: - //Version of QTimeZone::OffsetData struct using msecs for efficiency - struct Data { - QString abbreviation; - qint64 atMSecsSinceEpoch; - int offsetFromUtc; - int standardTimeOffset; - int daylightTimeOffset; - }; - typedef QVector<Data> DataList; - - // Create null time zone - QTimeZonePrivate(); - QTimeZonePrivate(const QTimeZonePrivate &other); - virtual ~QTimeZonePrivate(); - - virtual QTimeZonePrivate *clone() const; - - bool operator==(const QTimeZonePrivate &other) const; - bool operator!=(const QTimeZonePrivate &other) const; - - bool isValid() const; - - QByteArray id() const; - virtual QLocale::Country country() const; - virtual QString comment() const; - - virtual QString displayName(qint64 atMSecsSinceEpoch, - QTimeZone::NameType nameType, - const QLocale &locale) const; - virtual QString displayName(QTimeZone::TimeType timeType, - QTimeZone::NameType nameType, - const QLocale &locale) const; - virtual QString abbreviation(qint64 atMSecsSinceEpoch) const; - - virtual int offsetFromUtc(qint64 atMSecsSinceEpoch) const; - virtual int standardTimeOffset(qint64 atMSecsSinceEpoch) const; - virtual int daylightTimeOffset(qint64 atMSecsSinceEpoch) const; - - virtual bool hasDaylightTime() const; - virtual bool isDaylightTime(qint64 atMSecsSinceEpoch) const; - - virtual Data data(qint64 forMSecsSinceEpoch) const; - Data dataForLocalTime(qint64 forLocalMSecs, int hint) const; - - virtual bool hasTransitions() const; - virtual Data nextTransition(qint64 afterMSecsSinceEpoch) const; - virtual Data previousTransition(qint64 beforeMSecsSinceEpoch) const; - DataList transitions(qint64 fromMSecsSinceEpoch, qint64 toMSecsSinceEpoch) const; - - virtual QByteArray systemTimeZoneId() const; - - virtual bool isTimeZoneIdAvailable(const QByteArray &ianaId) const; - virtual QList<QByteArray> availableTimeZoneIds() const; - virtual QList<QByteArray> availableTimeZoneIds(QLocale::Country country) const; - virtual QList<QByteArray> availableTimeZoneIds(int utcOffset) const; - - virtual void serialize(QDataStream &ds) const; - - // Static Utility Methods - static inline qint64 maxMSecs() { return std::numeric_limits<qint64>::max(); } - static inline qint64 minMSecs() { return std::numeric_limits<qint64>::min() + 1; } - static inline qint64 invalidMSecs() { return std::numeric_limits<qint64>::min(); } - static inline qint64 invalidSeconds() { return std::numeric_limits<int>::min(); } - static Data invalidData(); - static QTimeZone::OffsetData invalidOffsetData(); - static QTimeZone::OffsetData toOffsetData(const Data &data); - static bool isValidId(const QByteArray &ianaId); - static QString isoOffsetFormat(int offsetFromUtc); - - static QByteArray ianaIdToWindowsId(const QByteArray &ianaId); - static QByteArray windowsIdToDefaultIanaId(const QByteArray &windowsId); - static QByteArray windowsIdToDefaultIanaId(const QByteArray &windowsId, - QLocale::Country country); - static QList<QByteArray> windowsIdToIanaIds(const QByteArray &windowsId); - static QList<QByteArray> windowsIdToIanaIds(const QByteArray &windowsId, - QLocale::Country country); - - // returns "UTC" QString and QByteArray - Q_REQUIRED_RESULT static inline QString utcQString() - { - return QStringLiteral("UTC"); - } - - Q_REQUIRED_RESULT static inline QByteArray utcQByteArray() - { - return QByteArrayLiteral("UTC"); - } - -protected: - QByteArray m_id; -}; -Q_DECLARE_TYPEINFO(QTimeZonePrivate::Data, Q_MOVABLE_TYPE); - -template<> QTimeZonePrivate *QSharedDataPointer<QTimeZonePrivate>::clone(); - -class Q_AUTOTEST_EXPORT QUtcTimeZonePrivate final : public QTimeZonePrivate -{ -public: - // Create default UTC time zone - QUtcTimeZonePrivate(); - // Create named time zone - QUtcTimeZonePrivate(const QByteArray &utcId); - // Create offset from UTC - QUtcTimeZonePrivate(int offsetSeconds); - // Create custom offset from UTC - QUtcTimeZonePrivate(const QByteArray &zoneId, int offsetSeconds, const QString &name, - const QString &abbreviation, QLocale::Country country, - const QString &comment); - QUtcTimeZonePrivate(const QUtcTimeZonePrivate &other); - virtual ~QUtcTimeZonePrivate(); - - QUtcTimeZonePrivate *clone() const override; - - Data data(qint64 forMSecsSinceEpoch) const override; - - QLocale::Country country() const override; - QString comment() const override; - - QString displayName(QTimeZone::TimeType timeType, - QTimeZone::NameType nameType, - const QLocale &locale) const override; - QString abbreviation(qint64 atMSecsSinceEpoch) const override; - - int standardTimeOffset(qint64 atMSecsSinceEpoch) const override; - int daylightTimeOffset(qint64 atMSecsSinceEpoch) const override; - - QByteArray systemTimeZoneId() const override; - - bool isTimeZoneIdAvailable(const QByteArray &ianaId) const override; - QList<QByteArray> availableTimeZoneIds() const override; - QList<QByteArray> availableTimeZoneIds(QLocale::Country country) const override; - QList<QByteArray> availableTimeZoneIds(int utcOffset) const override; - - void serialize(QDataStream &ds) const override; - -private: - void init(const QByteArray &zoneId); - void init(const QByteArray &zoneId, int offsetSeconds, const QString &name, - const QString &abbreviation, QLocale::Country country, - const QString &comment); - - QString m_name; - QString m_abbreviation; - QString m_comment; - QLocale::Country m_country; - int m_offsetFromUtc; -}; - -#if QT_CONFIG(icu) -class Q_AUTOTEST_EXPORT QIcuTimeZonePrivate final : public QTimeZonePrivate -{ -public: - // Create default time zone - QIcuTimeZonePrivate(); - // Create named time zone - QIcuTimeZonePrivate(const QByteArray &ianaId); - QIcuTimeZonePrivate(const QIcuTimeZonePrivate &other); - ~QIcuTimeZonePrivate(); - - QIcuTimeZonePrivate *clone() const override; - - QString displayName(QTimeZone::TimeType timeType, QTimeZone::NameType nameType, - const QLocale &locale) const override; - QString abbreviation(qint64 atMSecsSinceEpoch) const override; - - int offsetFromUtc(qint64 atMSecsSinceEpoch) const override; - int standardTimeOffset(qint64 atMSecsSinceEpoch) const override; - int daylightTimeOffset(qint64 atMSecsSinceEpoch) const override; - - bool hasDaylightTime() const override; - bool isDaylightTime(qint64 atMSecsSinceEpoch) const override; - - Data data(qint64 forMSecsSinceEpoch) const override; - - bool hasTransitions() const override; - Data nextTransition(qint64 afterMSecsSinceEpoch) const override; - Data previousTransition(qint64 beforeMSecsSinceEpoch) const override; - - QByteArray systemTimeZoneId() const override; - - QList<QByteArray> availableTimeZoneIds() const override; - QList<QByteArray> availableTimeZoneIds(QLocale::Country country) const override; - QList<QByteArray> availableTimeZoneIds(int offsetFromUtc) const override; - -private: - void init(const QByteArray &ianaId); - - UCalendar *m_ucal; -}; -#endif - -#if defined(Q_OS_UNIX) && !defined(Q_OS_DARWIN) && (!defined(Q_OS_ANDROID) || defined(Q_OS_ANDROID_EMBEDDED)) -struct QTzTransitionTime -{ - qint64 atMSecsSinceEpoch; - quint8 ruleIndex; -}; -Q_DECLARE_TYPEINFO(QTzTransitionTime, Q_PRIMITIVE_TYPE); -struct QTzTransitionRule -{ - int stdOffset; - int dstOffset; - quint8 abbreviationIndex; -}; -Q_DECLARE_TYPEINFO(QTzTransitionRule, Q_PRIMITIVE_TYPE); -Q_DECL_CONSTEXPR inline bool operator==(const QTzTransitionRule &lhs, const QTzTransitionRule &rhs) noexcept -{ return lhs.stdOffset == rhs.stdOffset && lhs.dstOffset == rhs.dstOffset && lhs.abbreviationIndex == rhs.abbreviationIndex; } -Q_DECL_CONSTEXPR inline bool operator!=(const QTzTransitionRule &lhs, const QTzTransitionRule &rhs) noexcept -{ return !operator==(lhs, rhs); } - -class Q_AUTOTEST_EXPORT QTzTimeZonePrivate final : public QTimeZonePrivate -{ - QTzTimeZonePrivate(const QTzTimeZonePrivate &) = default; -public: - // Create default time zone - QTzTimeZonePrivate(); - // Create named time zone - QTzTimeZonePrivate(const QByteArray &ianaId); - ~QTzTimeZonePrivate(); - - QTzTimeZonePrivate *clone() const override; - - QLocale::Country country() const override; - QString comment() const override; - - QString displayName(qint64 atMSecsSinceEpoch, - QTimeZone::NameType nameType, - const QLocale &locale) const override; - QString displayName(QTimeZone::TimeType timeType, - QTimeZone::NameType nameType, - const QLocale &locale) const override; - QString abbreviation(qint64 atMSecsSinceEpoch) const override; - - int offsetFromUtc(qint64 atMSecsSinceEpoch) const override; - int standardTimeOffset(qint64 atMSecsSinceEpoch) const override; - int daylightTimeOffset(qint64 atMSecsSinceEpoch) const override; - - bool hasDaylightTime() const override; - bool isDaylightTime(qint64 atMSecsSinceEpoch) const override; - - Data data(qint64 forMSecsSinceEpoch) const override; - - bool hasTransitions() const override; - Data nextTransition(qint64 afterMSecsSinceEpoch) const override; - Data previousTransition(qint64 beforeMSecsSinceEpoch) const override; - - QByteArray systemTimeZoneId() const override; - - bool isTimeZoneIdAvailable(const QByteArray &ianaId) const override; - QList<QByteArray> availableTimeZoneIds() const override; - QList<QByteArray> availableTimeZoneIds(QLocale::Country country) const override; - -private: - void init(const QByteArray &ianaId); - QVector<QTimeZonePrivate::Data> getPosixTransitions(qint64 msNear) const; - - Data dataForTzTransition(QTzTransitionTime tran) const; - QVector<QTzTransitionTime> m_tranTimes; - QVector<QTzTransitionRule> m_tranRules; - QList<QByteArray> m_abbreviations; -#if QT_CONFIG(icu) - mutable QSharedDataPointer<QTimeZonePrivate> m_icu; -#endif - QByteArray m_posixRule; -}; -#endif // Q_OS_UNIX - -#ifdef Q_OS_MAC -class Q_AUTOTEST_EXPORT QMacTimeZonePrivate final : public QTimeZonePrivate -{ -public: - // Create default time zone - QMacTimeZonePrivate(); - // Create named time zone - QMacTimeZonePrivate(const QByteArray &ianaId); - QMacTimeZonePrivate(const QMacTimeZonePrivate &other); - ~QMacTimeZonePrivate(); - - QMacTimeZonePrivate *clone() const override; - - QString comment() const override; - - QString displayName(QTimeZone::TimeType timeType, QTimeZone::NameType nameType, - const QLocale &locale) const override; - QString abbreviation(qint64 atMSecsSinceEpoch) const override; - - int offsetFromUtc(qint64 atMSecsSinceEpoch) const override; - int standardTimeOffset(qint64 atMSecsSinceEpoch) const override; - int daylightTimeOffset(qint64 atMSecsSinceEpoch) const override; - - bool hasDaylightTime() const override; - bool isDaylightTime(qint64 atMSecsSinceEpoch) const override; - - Data data(qint64 forMSecsSinceEpoch) const override; - - bool hasTransitions() const override; - Data nextTransition(qint64 afterMSecsSinceEpoch) const override; - Data previousTransition(qint64 beforeMSecsSinceEpoch) const override; - - QByteArray systemTimeZoneId() const override; - - QList<QByteArray> availableTimeZoneIds() const override; - - NSTimeZone *nsTimeZone() const; - -private: - void init(const QByteArray &zoneId); - - NSTimeZone *m_nstz; -}; -#endif // Q_OS_MAC - -#ifdef Q_OS_WIN -class Q_AUTOTEST_EXPORT QWinTimeZonePrivate final : public QTimeZonePrivate -{ -public: - struct QWinTransitionRule { - int startYear; - int standardTimeBias; - int daylightTimeBias; - SYSTEMTIME standardTimeRule; - SYSTEMTIME daylightTimeRule; - }; - - // Create default time zone - QWinTimeZonePrivate(); - // Create named time zone - QWinTimeZonePrivate(const QByteArray &ianaId); - QWinTimeZonePrivate(const QWinTimeZonePrivate &other); - ~QWinTimeZonePrivate(); - - QWinTimeZonePrivate *clone() const override; - - QString comment() const override; - - QString displayName(QTimeZone::TimeType timeType, QTimeZone::NameType nameType, - const QLocale &locale) const override; - QString abbreviation(qint64 atMSecsSinceEpoch) const override; - - int offsetFromUtc(qint64 atMSecsSinceEpoch) const override; - int standardTimeOffset(qint64 atMSecsSinceEpoch) const override; - int daylightTimeOffset(qint64 atMSecsSinceEpoch) const override; - - bool hasDaylightTime() const override; - bool isDaylightTime(qint64 atMSecsSinceEpoch) const override; - - Data data(qint64 forMSecsSinceEpoch) const override; - - bool hasTransitions() const override; - Data nextTransition(qint64 afterMSecsSinceEpoch) const override; - Data previousTransition(qint64 beforeMSecsSinceEpoch) const override; - - QByteArray systemTimeZoneId() const override; - - QList<QByteArray> availableTimeZoneIds() const override; - -private: - void init(const QByteArray &ianaId); - QTimeZonePrivate::Data ruleToData(const QWinTransitionRule &rule, qint64 atMSecsSinceEpoch, - QTimeZone::TimeType type, bool fakeDst = false) const; - - QByteArray m_windowsId; - QString m_displayName; - QString m_standardName; - QString m_daylightName; - QList<QWinTransitionRule> m_tranRules; -}; -#endif // Q_OS_WIN - -#if defined(Q_OS_ANDROID) && !defined(Q_OS_ANDROID_EMBEDDED) -class QAndroidTimeZonePrivate final : public QTimeZonePrivate -{ -public: - // Create default time zone - QAndroidTimeZonePrivate(); - // Create named time zone - QAndroidTimeZonePrivate(const QByteArray &ianaId); - QAndroidTimeZonePrivate(const QAndroidTimeZonePrivate &other); - ~QAndroidTimeZonePrivate(); - - QAndroidTimeZonePrivate *clone() const override; - - QString displayName(QTimeZone::TimeType timeType, QTimeZone::NameType nameType, - const QLocale &locale) const override; - QString abbreviation(qint64 atMSecsSinceEpoch) const override; - - int offsetFromUtc(qint64 atMSecsSinceEpoch) const override; - int standardTimeOffset(qint64 atMSecsSinceEpoch) const override; - int daylightTimeOffset(qint64 atMSecsSinceEpoch) const override; - - bool hasDaylightTime() const override; - bool isDaylightTime(qint64 atMSecsSinceEpoch) const override; - - Data data(qint64 forMSecsSinceEpoch) const override; - - bool hasTransitions() const override; - Data nextTransition(qint64 afterMSecsSinceEpoch) const override; - Data previousTransition(qint64 beforeMSecsSinceEpoch) const override; - - QByteArray systemTimeZoneId() const override; - - QList<QByteArray> availableTimeZoneIds() const override; - -private: - void init(const QByteArray &zoneId); - - QJNIObjectPrivate androidTimeZone; - -}; -#endif // Q_OS_ANDROID - -QT_END_NAMESPACE - -#endif // QTIMEZONEPRIVATE_P_H diff --git a/src/corelib/tools/qtimezoneprivate_tz.cpp b/src/corelib/tools/qtimezoneprivate_tz.cpp deleted file mode 100644 index f5440799ab..0000000000 --- a/src/corelib/tools/qtimezoneprivate_tz.cpp +++ /dev/null @@ -1,1155 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2013 John Layt <jlayt@kde.org> -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtCore module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qtimezone.h" -#include "qtimezoneprivate_p.h" -#include "qdatetime_p.h" // ### Qt 5.14: remove once YearRange is on QDateTime - -#include <QtCore/QFile> -#include <QtCore/QHash> -#include <QtCore/QDataStream> -#include <QtCore/QDateTime> - -#include <qdebug.h> - -#include "qlocale_tools_p.h" - -#include <algorithm> - -QT_BEGIN_NAMESPACE - -/* - Private - - tz file implementation -*/ - -struct QTzTimeZone { - QLocale::Country country; - QByteArray comment; -}; - -// Define as a type as Q_GLOBAL_STATIC doesn't like it -typedef QHash<QByteArray, QTzTimeZone> QTzTimeZoneHash; - -// Parse zone.tab table, assume lists all installed zones, if not will need to read directories -static QTzTimeZoneHash loadTzTimeZones() -{ - QString path = QStringLiteral("/usr/share/zoneinfo/zone.tab"); - if (!QFile::exists(path)) - path = QStringLiteral("/usr/lib/zoneinfo/zone.tab"); - - QFile tzif(path); - if (!tzif.open(QIODevice::ReadOnly)) - return QTzTimeZoneHash(); - - QTzTimeZoneHash zonesHash; - // TODO QTextStream inefficient, replace later - QTextStream ts(&tzif); - while (!ts.atEnd()) { - const QString line = ts.readLine(); - // Comment lines are prefixed with a # - if (!line.isEmpty() && line.at(0) != '#') { - // Data rows are tab-separated columns Region, Coordinates, ID, Optional Comments - const auto parts = line.splitRef(QLatin1Char('\t')); - QTzTimeZone zone; - zone.country = QLocalePrivate::codeToCountry(parts.at(0)); - if (parts.size() > 3) - zone.comment = parts.at(3).toUtf8(); - zonesHash.insert(parts.at(2).toUtf8(), zone); - } - } - return zonesHash; -} - -// Hash of available system tz files as loaded by loadTzTimeZones() -Q_GLOBAL_STATIC_WITH_ARGS(const QTzTimeZoneHash, tzZones, (loadTzTimeZones())); - -/* - The following is copied and modified from tzfile.h which is in the public domain. - Copied as no compatibility guarantee and is never system installed. - See https://github.com/eggert/tz/blob/master/tzfile.h -*/ - -#define TZ_MAGIC "TZif" -#define TZ_MAX_TIMES 1200 -#define TZ_MAX_TYPES 256 // Limited by what (unsigned char)'s can hold -#define TZ_MAX_CHARS 50 // Maximum number of abbreviation characters -#define TZ_MAX_LEAPS 50 // Maximum number of leap second corrections - -struct QTzHeader { - char tzh_magic[4]; // TZ_MAGIC - char tzh_version; // '\0' or '2' as of 2005 - char tzh_reserved[15]; // reserved--must be zero - quint32 tzh_ttisgmtcnt; // number of trans. time flags - quint32 tzh_ttisstdcnt; // number of trans. time flags - quint32 tzh_leapcnt; // number of leap seconds - quint32 tzh_timecnt; // number of transition times - quint32 tzh_typecnt; // number of local time types - quint32 tzh_charcnt; // number of abbr. chars -}; - -struct QTzTransition { - qint64 tz_time; // Transition time - quint8 tz_typeind; // Type Index -}; -Q_DECLARE_TYPEINFO(QTzTransition, Q_PRIMITIVE_TYPE); - -struct QTzType { - int tz_gmtoff; // UTC offset in seconds - bool tz_isdst; // Is DST - quint8 tz_abbrind; // abbreviation list index -}; -Q_DECLARE_TYPEINFO(QTzType, Q_PRIMITIVE_TYPE); - - -// TZ File parsing - -static QTzHeader parseTzHeader(QDataStream &ds, bool *ok) -{ - QTzHeader hdr; - quint8 ch; - *ok = false; - - // Parse Magic, 4 bytes - ds.readRawData(hdr.tzh_magic, 4); - - if (memcmp(hdr.tzh_magic, TZ_MAGIC, 4) != 0 || ds.status() != QDataStream::Ok) - return hdr; - - // Parse Version, 1 byte, before 2005 was '\0', since 2005 a '2', since 2013 a '3' - ds >> ch; - hdr.tzh_version = ch; - if (ds.status() != QDataStream::Ok - || (hdr.tzh_version != '2' && hdr.tzh_version != '\0' && hdr.tzh_version != '3')) { - return hdr; - } - - // Parse reserved space, 15 bytes - ds.readRawData(hdr.tzh_reserved, 15); - if (ds.status() != QDataStream::Ok) - return hdr; - - // Parse rest of header, 6 x 4-byte transition counts - ds >> hdr.tzh_ttisgmtcnt >> hdr.tzh_ttisstdcnt >> hdr.tzh_leapcnt >> hdr.tzh_timecnt - >> hdr.tzh_typecnt >> hdr.tzh_charcnt; - - // Check defined maximums - if (ds.status() != QDataStream::Ok - || hdr.tzh_timecnt > TZ_MAX_TIMES - || hdr.tzh_typecnt > TZ_MAX_TYPES - || hdr.tzh_charcnt > TZ_MAX_CHARS - || hdr.tzh_leapcnt > TZ_MAX_LEAPS - || hdr.tzh_ttisgmtcnt > hdr.tzh_typecnt - || hdr.tzh_ttisstdcnt > hdr.tzh_typecnt) { - return hdr; - } - - *ok = true; - return hdr; -} - -static QVector<QTzTransition> parseTzTransitions(QDataStream &ds, int tzh_timecnt, bool longTran) -{ - QVector<QTzTransition> transitions(tzh_timecnt); - - if (longTran) { - // Parse tzh_timecnt x 8-byte transition times - for (int i = 0; i < tzh_timecnt && ds.status() == QDataStream::Ok; ++i) { - ds >> transitions[i].tz_time; - if (ds.status() != QDataStream::Ok) - transitions.resize(i); - } - } else { - // Parse tzh_timecnt x 4-byte transition times - qint32 val; - for (int i = 0; i < tzh_timecnt && ds.status() == QDataStream::Ok; ++i) { - ds >> val; - transitions[i].tz_time = val; - if (ds.status() != QDataStream::Ok) - transitions.resize(i); - } - } - - // Parse tzh_timecnt x 1-byte transition type index - for (int i = 0; i < tzh_timecnt && ds.status() == QDataStream::Ok; ++i) { - quint8 typeind; - ds >> typeind; - if (ds.status() == QDataStream::Ok) - transitions[i].tz_typeind = typeind; - } - - return transitions; -} - -static QVector<QTzType> parseTzTypes(QDataStream &ds, int tzh_typecnt) -{ - QVector<QTzType> types(tzh_typecnt); - - // Parse tzh_typecnt x transition types - for (int i = 0; i < tzh_typecnt && ds.status() == QDataStream::Ok; ++i) { - QTzType &type = types[i]; - // Parse UTC Offset, 4 bytes - ds >> type.tz_gmtoff; - // Parse Is DST flag, 1 byte - if (ds.status() == QDataStream::Ok) - ds >> type.tz_isdst; - // Parse Abbreviation Array Index, 1 byte - if (ds.status() == QDataStream::Ok) - ds >> type.tz_abbrind; - if (ds.status() != QDataStream::Ok) - types.resize(i); - } - - return types; -} - -static QMap<int, QByteArray> parseTzAbbreviations(QDataStream &ds, int tzh_charcnt, const QVector<QTzType> &types) -{ - // Parse the abbreviation list which is tzh_charcnt long with '\0' separated strings. The - // QTzType.tz_abbrind index points to the first char of the abbreviation in the array, not the - // occurrence in the list. It can also point to a partial string so we need to use the actual typeList - // index values when parsing. By using a map with tz_abbrind as ordered key we get both index - // methods in one data structure and can convert the types afterwards. - QMap<int, QByteArray> map; - quint8 ch; - QByteArray input; - // First parse the full abbrev string - for (int i = 0; i < tzh_charcnt && ds.status() == QDataStream::Ok; ++i) { - ds >> ch; - if (ds.status() == QDataStream::Ok) - input.append(char(ch)); - else - return map; - } - // Then extract all the substrings pointed to by types - for (const QTzType &type : types) { - QByteArray abbrev; - for (int i = type.tz_abbrind; input.at(i) != '\0'; ++i) - abbrev.append(input.at(i)); - // Have reached end of an abbreviation, so add to map - map[type.tz_abbrind] = abbrev; - } - return map; -} - -static void parseTzLeapSeconds(QDataStream &ds, int tzh_leapcnt, bool longTran) -{ - // Parse tzh_leapcnt x pairs of leap seconds - // We don't use leap seconds, so only read and don't store - qint32 val; - if (longTran) { - // v2 file format, each entry is 12 bytes long - qint64 time; - for (int i = 0; i < tzh_leapcnt && ds.status() == QDataStream::Ok; ++i) { - // Parse Leap Occurrence Time, 8 bytes - ds >> time; - // Parse Leap Seconds To Apply, 4 bytes - if (ds.status() == QDataStream::Ok) - ds >> val; - } - } else { - // v0 file format, each entry is 8 bytes long - for (int i = 0; i < tzh_leapcnt && ds.status() == QDataStream::Ok; ++i) { - // Parse Leap Occurrence Time, 4 bytes - ds >> val; - // Parse Leap Seconds To Apply, 4 bytes - if (ds.status() == QDataStream::Ok) - ds >> val; - } - } -} - -static QVector<QTzType> parseTzIndicators(QDataStream &ds, const QVector<QTzType> &types, int tzh_ttisstdcnt, int tzh_ttisgmtcnt) -{ - QVector<QTzType> result = types; - bool temp; - /* - Scan and discard indicators. - - These indicators are only of use (by the date program) when "handling - POSIX-style time zone environment variables". The flags here say whether - the *specification* of the zone gave the time in UTC, local standard time - or local wall time; but whatever was specified has been digested for us, - already, by the zone-info compiler (zic), so that the tz_time values read - from the file (by parseTzTransitions) are all in UTC. - */ - - // Scan tzh_ttisstdcnt x 1-byte standard/wall indicators - for (int i = 0; i < tzh_ttisstdcnt && ds.status() == QDataStream::Ok; ++i) - ds >> temp; - - // Scan tzh_ttisgmtcnt x 1-byte UTC/local indicators - for (int i = 0; i < tzh_ttisgmtcnt && ds.status() == QDataStream::Ok; ++i) - ds >> temp; - - return result; -} - -static QByteArray parseTzPosixRule(QDataStream &ds) -{ - // Parse POSIX rule, variable length '\n' enclosed - QByteArray rule; - - quint8 ch; - ds >> ch; - if (ch != '\n' || ds.status() != QDataStream::Ok) - return rule; - ds >> ch; - while (ch != '\n' && ds.status() == QDataStream::Ok) { - rule.append((char)ch); - ds >> ch; - } - - return rule; -} - -static QDate calculateDowDate(int year, int month, int dayOfWeek, int week) -{ - QDate date(year, month, 1); - int startDow = date.dayOfWeek(); - if (startDow <= dayOfWeek) - date = date.addDays(dayOfWeek - startDow - 7); - else - date = date.addDays(dayOfWeek - startDow); - date = date.addDays(week * 7); - while (date.month() != month) - date = date.addDays(-7); - return date; -} - -static QDate calculatePosixDate(const QByteArray &dateRule, int year) -{ - // Can start with M, J, or a digit - if (dateRule.at(0) == 'M') { - // nth week in month format "Mmonth.week.dow" - QList<QByteArray> dateParts = dateRule.split('.'); - int month = dateParts.at(0).mid(1).toInt(); - int week = dateParts.at(1).toInt(); - int dow = dateParts.at(2).toInt(); - if (dow == 0) - ++dow; - return calculateDowDate(year, month, dow, week); - } else if (dateRule.at(0) == 'J') { - // Day of Year ignores Feb 29 - int doy = dateRule.mid(1).toInt(); - QDate date = QDate(year, 1, 1).addDays(doy - 1); - if (QDate::isLeapYear(date.year())) - date = date.addDays(-1); - return date; - } else { - // Day of Year includes Feb 29 - int doy = dateRule.toInt(); - return QDate(year, 1, 1).addDays(doy - 1); - } -} - -// returns the time in seconds, INT_MIN if we failed to parse -static int parsePosixTime(const char *begin, const char *end) -{ - // Format "hh[:mm[:ss]]" - int hour, min = 0, sec = 0; - - // Note that the calls to qstrtoll do *not* check the end pointer, which - // means they proceed until they find a non-digit. We check that we're - // still in range at the end, but we may have read from past end. It's the - // caller's responsibility to ensure that begin is part of a - // null-terminated string. - - bool ok = false; - hour = qstrtoll(begin, &begin, 10, &ok); - if (!ok || hour < 0) - return INT_MIN; - if (begin < end && *begin == ':') { - // minutes - ++begin; - min = qstrtoll(begin, &begin, 10, &ok); - if (!ok || min < 0) - return INT_MIN; - - if (begin < end && *begin == ':') { - // seconds - ++begin; - sec = qstrtoll(begin, &begin, 10, &ok); - if (!ok || sec < 0) - return INT_MIN; - } - } - - // we must have consumed everything - if (begin != end) - return INT_MIN; - - return (hour * 60 + min) * 60 + sec; -} - -static QTime parsePosixTransitionTime(const QByteArray &timeRule) -{ - // Format "hh[:mm[:ss]]" - int value = parsePosixTime(timeRule.constBegin(), timeRule.constEnd()); - if (value == INT_MIN) { - // if we failed to parse, return 02:00 - return QTime(2, 0, 0); - } - return QTime::fromMSecsSinceStartOfDay(value * 1000); -} - -static int parsePosixOffset(const char *begin, const char *end) -{ - // Format "[+|-]hh[:mm[:ss]]" - // note that the sign is inverted because POSIX counts in hours West of GMT - bool negate = true; - if (*begin == '+') { - ++begin; - } else if (*begin == '-') { - negate = false; - ++begin; - } - - int value = parsePosixTime(begin, end); - if (value == INT_MIN) - return value; - return negate ? -value : value; -} - -static inline bool asciiIsLetter(char ch) -{ - ch |= 0x20; // lowercases if it is a letter, otherwise just corrupts ch - return ch >= 'a' && ch <= 'z'; -} - -namespace { - -struct PosixZone -{ - enum { - InvalidOffset = INT_MIN, - }; - - QString name; - int offset; - - static PosixZone invalid() { return {QString(), InvalidOffset}; } - static PosixZone parse(const char *&pos, const char *end); - - bool hasValidOffset() const noexcept { return offset != InvalidOffset; } -}; - -} // unnamed namespace - -// Returns the zone name, the offset (in seconds) and advances \a begin to -// where the parsing ended. Returns a zone of INT_MIN in case an offset -// couldn't be read. -PosixZone PosixZone::parse(const char *&pos, const char *end) -{ - static const char offsetChars[] = "0123456789:"; - - const char *nameBegin = pos; - const char *nameEnd; - Q_ASSERT(pos < end); - - if (*pos == '<') { - nameBegin = pos + 1; // skip the '<' - nameEnd = nameBegin; - while (nameEnd < end && *nameEnd != '>') { - // POSIX says only alphanumeric, but we allow anything - ++nameEnd; - } - pos = nameEnd + 1; // skip the '>' - } else { - nameBegin = pos; - nameEnd = nameBegin; - while (nameEnd < end && asciiIsLetter(*nameEnd)) - ++nameEnd; - pos = nameEnd; - } - if (nameEnd - nameBegin < 3) - return invalid(); // name must be at least 3 characters long - - // zone offset, form [+-]hh:mm:ss - const char *zoneBegin = pos; - const char *zoneEnd = pos; - if (zoneEnd < end && (zoneEnd[0] == '+' || zoneEnd[0] == '-')) - ++zoneEnd; - while (zoneEnd < end) { - if (strchr(offsetChars, char(*zoneEnd)) == NULL) - break; - ++zoneEnd; - } - - QString name = QString::fromUtf8(nameBegin, nameEnd - nameBegin); - const int offset = zoneEnd > zoneBegin ? parsePosixOffset(zoneBegin, zoneEnd) : InvalidOffset; - pos = zoneEnd; - // UTC+hh:mm:ss or GMT+hh:mm:ss should be read as offsets from UTC, not as a - // POSIX rule naming a zone as UTC or GMT and specifying a non-zero offset. - if (offset != 0 && (name == QLatin1String("UTC") || name == QLatin1String("GMT"))) - return invalid(); - return {std::move(name), offset}; -} - -static QVector<QTimeZonePrivate::Data> calculatePosixTransitions(const QByteArray &posixRule, - int startYear, int endYear, - qint64 lastTranMSecs) -{ - QVector<QTimeZonePrivate::Data> result; - - // POSIX Format is like "TZ=CST6CDT,M3.2.0/2:00:00,M11.1.0/2:00:00" - // i.e. "std offset dst [offset],start[/time],end[/time]" - // See the section about TZ at - // http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap08.html - QList<QByteArray> parts = posixRule.split(','); - - PosixZone stdZone, dstZone = PosixZone::invalid(); - { - const QByteArray &zoneinfo = parts.at(0); - const char *begin = zoneinfo.constBegin(); - - stdZone = PosixZone::parse(begin, zoneinfo.constEnd()); - if (!stdZone.hasValidOffset()) { - stdZone.offset = 0; // reset to UTC if we failed to parse - } else if (begin < zoneinfo.constEnd()) { - dstZone = PosixZone::parse(begin, zoneinfo.constEnd()); - if (!dstZone.hasValidOffset()) { - // if the dst offset isn't provided, it is 1 hour ahead of the standard offset - dstZone.offset = stdZone.offset + (60 * 60); - } - } - } - - // If only the name part then no transitions - if (parts.count() == 1) { - QTimeZonePrivate::Data data; - data.atMSecsSinceEpoch = lastTranMSecs; - data.offsetFromUtc = stdZone.offset; - data.standardTimeOffset = stdZone.offset; - data.daylightTimeOffset = 0; - data.abbreviation = stdZone.name; - result << data; - return result; - } - - - // Get the std to dst transtion details - QList<QByteArray> dstParts = parts.at(1).split('/'); - QByteArray dstDateRule = dstParts.at(0); - QTime dstTime; - if (dstParts.count() > 1) - dstTime = parsePosixTransitionTime(dstParts.at(1)); - else - dstTime = QTime(2, 0, 0); - - // Get the dst to std transtion details - QList<QByteArray> stdParts = parts.at(2).split('/'); - QByteArray stdDateRule = stdParts.at(0); - QTime stdTime; - if (stdParts.count() > 1) - stdTime = parsePosixTransitionTime(stdParts.at(1)); - else - stdTime = QTime(2, 0, 0); - - // Limit year to the range QDateTime can represent: - const int minYear = int(QDateTimePrivate::YearRange::First); - const int maxYear = int(QDateTimePrivate::YearRange::Last); - startYear = qBound(minYear, startYear, maxYear); - endYear = qBound(minYear, endYear, maxYear); - Q_ASSERT(startYear <= endYear); - - for (int year = startYear; year <= endYear; ++year) { - QTimeZonePrivate::Data dstData; - QDateTime dst(calculatePosixDate(dstDateRule, year), dstTime, Qt::UTC); - dstData.atMSecsSinceEpoch = dst.toMSecsSinceEpoch() - (stdZone.offset * 1000); - dstData.offsetFromUtc = dstZone.offset; - dstData.standardTimeOffset = stdZone.offset; - dstData.daylightTimeOffset = dstZone.offset - stdZone.offset; - dstData.abbreviation = dstZone.name; - QTimeZonePrivate::Data stdData; - QDateTime std(calculatePosixDate(stdDateRule, year), stdTime, Qt::UTC); - stdData.atMSecsSinceEpoch = std.toMSecsSinceEpoch() - (dstZone.offset * 1000); - stdData.offsetFromUtc = stdZone.offset; - stdData.standardTimeOffset = stdZone.offset; - stdData.daylightTimeOffset = 0; - stdData.abbreviation = stdZone.name; - // Part of maxYear will overflow (likewise for minYear, below): - if (year == maxYear && (dstData.atMSecsSinceEpoch < 0 || stdData.atMSecsSinceEpoch < 0)) { - if (dstData.atMSecsSinceEpoch > 0) { - result << dstData; - } else if (stdData.atMSecsSinceEpoch > 0) { - result << stdData; - } - } else if (year < 1970) { // We ignore DST before the epoch. - if (year > minYear || stdData.atMSecsSinceEpoch != QTimeZonePrivate::invalidMSecs()) - result << stdData; - } else if (dst < std) { - result << dstData << stdData; - } else { - result << stdData << dstData; - } - } - return result; -} - -// Create the system default time zone -QTzTimeZonePrivate::QTzTimeZonePrivate() -{ - init(systemTimeZoneId()); -} - -// Create a named time zone -QTzTimeZonePrivate::QTzTimeZonePrivate(const QByteArray &ianaId) -{ - init(ianaId); -} - -QTzTimeZonePrivate::~QTzTimeZonePrivate() -{ -} - -QTzTimeZonePrivate *QTzTimeZonePrivate::clone() const -{ - return new QTzTimeZonePrivate(*this); -} - -void QTzTimeZonePrivate::init(const QByteArray &ianaId) -{ - QFile tzif; - if (ianaId.isEmpty()) { - // Open system tz - tzif.setFileName(QStringLiteral("/etc/localtime")); - if (!tzif.open(QIODevice::ReadOnly)) - return; - } else { - // Open named tz, try modern path first, if fails try legacy path - tzif.setFileName(QLatin1String("/usr/share/zoneinfo/") + QString::fromLocal8Bit(ianaId)); - if (!tzif.open(QIODevice::ReadOnly)) { - tzif.setFileName(QLatin1String("/usr/lib/zoneinfo/") + QString::fromLocal8Bit(ianaId)); - if (!tzif.open(QIODevice::ReadOnly)) { - // ianaId may be a POSIX rule, taken from $TZ or /etc/TZ - const QByteArray zoneInfo = ianaId.split(',').at(0); - const char *begin = zoneInfo.constBegin(); - if (PosixZone::parse(begin, zoneInfo.constEnd()).hasValidOffset() - && (begin == zoneInfo.constEnd() - || PosixZone::parse(begin, zoneInfo.constEnd()).hasValidOffset())) { - m_id = m_posixRule = ianaId; - } - return; - } - } - } - - QDataStream ds(&tzif); - - // Parse the old version block of data - bool ok = false; - QTzHeader hdr = parseTzHeader(ds, &ok); - if (!ok || ds.status() != QDataStream::Ok) - return; - QVector<QTzTransition> tranList = parseTzTransitions(ds, hdr.tzh_timecnt, false); - if (ds.status() != QDataStream::Ok) - return; - QVector<QTzType> typeList = parseTzTypes(ds, hdr.tzh_typecnt); - if (ds.status() != QDataStream::Ok) - return; - QMap<int, QByteArray> abbrevMap = parseTzAbbreviations(ds, hdr.tzh_charcnt, typeList); - if (ds.status() != QDataStream::Ok) - return; - parseTzLeapSeconds(ds, hdr.tzh_leapcnt, false); - if (ds.status() != QDataStream::Ok) - return; - typeList = parseTzIndicators(ds, typeList, hdr.tzh_ttisstdcnt, hdr.tzh_ttisgmtcnt); - if (ds.status() != QDataStream::Ok) - return; - - // If version 2 then parse the second block of data - if (hdr.tzh_version == '2' || hdr.tzh_version == '3') { - ok = false; - QTzHeader hdr2 = parseTzHeader(ds, &ok); - if (!ok || ds.status() != QDataStream::Ok) - return; - tranList = parseTzTransitions(ds, hdr2.tzh_timecnt, true); - if (ds.status() != QDataStream::Ok) - return; - typeList = parseTzTypes(ds, hdr2.tzh_typecnt); - if (ds.status() != QDataStream::Ok) - return; - abbrevMap = parseTzAbbreviations(ds, hdr2.tzh_charcnt, typeList); - if (ds.status() != QDataStream::Ok) - return; - parseTzLeapSeconds(ds, hdr2.tzh_leapcnt, true); - if (ds.status() != QDataStream::Ok) - return; - typeList = parseTzIndicators(ds, typeList, hdr2.tzh_ttisstdcnt, hdr2.tzh_ttisgmtcnt); - if (ds.status() != QDataStream::Ok) - return; - m_posixRule = parseTzPosixRule(ds); - if (ds.status() != QDataStream::Ok) - return; - } - - // Translate the TZ file into internal format - - // Translate the array index based tz_abbrind into list index - const int size = abbrevMap.size(); - m_abbreviations.clear(); - m_abbreviations.reserve(size); - QVector<int> abbrindList; - abbrindList.reserve(size); - for (auto it = abbrevMap.cbegin(), end = abbrevMap.cend(); it != end; ++it) { - m_abbreviations.append(it.value()); - abbrindList.append(it.key()); - } - for (int i = 0; i < typeList.size(); ++i) - typeList[i].tz_abbrind = abbrindList.indexOf(typeList.at(i).tz_abbrind); - - // Offsets are stored as total offset, want to know separate UTC and DST offsets - // so find the first non-dst transition to use as base UTC Offset - int utcOffset = 0; - for (const QTzTransition &tran : qAsConst(tranList)) { - if (!typeList.at(tran.tz_typeind).tz_isdst) { - utcOffset = typeList.at(tran.tz_typeind).tz_gmtoff; - break; - } - } - - // Now for each transition time calculate and store our rule: - const int tranCount = tranList.count();; - m_tranTimes.reserve(tranCount); - // The DST offset when in effect: usually stable, usually an hour: - int lastDstOff = 3600; - for (int i = 0; i < tranCount; i++) { - const QTzTransition &tz_tran = tranList.at(i); - QTzTransitionTime tran; - QTzTransitionRule rule; - const QTzType tz_type = typeList.at(tz_tran.tz_typeind); - - // Calculate the associated Rule - if (!tz_type.tz_isdst) { - utcOffset = tz_type.tz_gmtoff; - } else if (Q_UNLIKELY(tz_type.tz_gmtoff != utcOffset + lastDstOff)) { - /* - This might be a genuine change in DST offset, but could also be - DST starting at the same time as the standard offset changed. See - if DST's end gives a more plausible utcOffset (i.e. one closer to - the last we saw, or a simple whole hour): - */ - // Standard offset inferred from net offset and expected DST offset: - const int inferStd = tz_type.tz_gmtoff - lastDstOff; // != utcOffset - for (int j = i + 1; j < tranCount; j++) { - const QTzType new_type = typeList.at(tranList.at(j).tz_typeind); - if (!new_type.tz_isdst) { - const int newUtc = new_type.tz_gmtoff; - if (newUtc == utcOffset) { - // DST-end can't help us, avoid lots of messy checks. - // else: See if the end matches the familiar DST offset: - } else if (newUtc == inferStd) { - utcOffset = newUtc; - // else: let either end shift us to one hour as DST offset: - } else if (tz_type.tz_gmtoff - 3600 == utcOffset) { - // Start does it - } else if (tz_type.tz_gmtoff - 3600 == newUtc) { - utcOffset = newUtc; // End does it - // else: prefer whichever end gives DST offset closer to - // last, but consider any offset > 0 "closer" than any <= 0: - } else if (newUtc < tz_type.tz_gmtoff - ? (utcOffset >= tz_type.tz_gmtoff - || qAbs(newUtc - inferStd) < qAbs(utcOffset - inferStd)) - : (utcOffset >= tz_type.tz_gmtoff - && qAbs(newUtc - inferStd) < qAbs(utcOffset - inferStd))) { - utcOffset = newUtc; - } - break; - } - } - lastDstOff = tz_type.tz_gmtoff - utcOffset; - } - rule.stdOffset = utcOffset; - rule.dstOffset = tz_type.tz_gmtoff - utcOffset; - rule.abbreviationIndex = tz_type.tz_abbrind; - - // If the rule already exist then use that, otherwise add it - int ruleIndex = m_tranRules.indexOf(rule); - if (ruleIndex == -1) { - m_tranRules.append(rule); - tran.ruleIndex = m_tranRules.size() - 1; - } else { - tran.ruleIndex = ruleIndex; - } - - tran.atMSecsSinceEpoch = tz_tran.tz_time * 1000; - m_tranTimes.append(tran); - } - if (m_tranTimes.isEmpty() && m_posixRule.isEmpty()) - return; // Invalid after all ! - - if (ianaId.isEmpty()) - m_id = systemTimeZoneId(); - else - m_id = ianaId; -} - -QLocale::Country QTzTimeZonePrivate::country() const -{ - return tzZones->value(m_id).country; -} - -QString QTzTimeZonePrivate::comment() const -{ - return QString::fromUtf8(tzZones->value(m_id).comment); -} - -QString QTzTimeZonePrivate::displayName(qint64 atMSecsSinceEpoch, - QTimeZone::NameType nameType, - const QLocale &locale) const -{ -#if QT_CONFIG(icu) - if (!m_icu) - m_icu = new QIcuTimeZonePrivate(m_id); - // TODO small risk may not match if tran times differ due to outdated files - // TODO Some valid TZ names are not valid ICU names, use translation table? - if (m_icu->isValid()) - return m_icu->displayName(atMSecsSinceEpoch, nameType, locale); -#else - Q_UNUSED(nameType) - Q_UNUSED(locale) -#endif - return abbreviation(atMSecsSinceEpoch); -} - -QString QTzTimeZonePrivate::displayName(QTimeZone::TimeType timeType, - QTimeZone::NameType nameType, - const QLocale &locale) const -{ -#if QT_CONFIG(icu) - if (!m_icu) - m_icu = new QIcuTimeZonePrivate(m_id); - // TODO small risk may not match if tran times differ due to outdated files - // TODO Some valid TZ names are not valid ICU names, use translation table? - if (m_icu->isValid()) - return m_icu->displayName(timeType, nameType, locale); -#else - Q_UNUSED(timeType) - Q_UNUSED(nameType) - Q_UNUSED(locale) -#endif - // If no ICU available then have to use abbreviations instead - // Abbreviations don't have GenericTime - if (timeType == QTimeZone::GenericTime) - timeType = QTimeZone::StandardTime; - - // Get current tran, if valid and is what we want, then use it - const qint64 currentMSecs = QDateTime::currentMSecsSinceEpoch(); - QTimeZonePrivate::Data tran = data(currentMSecs); - if (tran.atMSecsSinceEpoch != invalidMSecs() - && ((timeType == QTimeZone::DaylightTime && tran.daylightTimeOffset != 0) - || (timeType == QTimeZone::StandardTime && tran.daylightTimeOffset == 0))) { - return tran.abbreviation; - } - - // Otherwise get next tran and if valid and is what we want, then use it - tran = nextTransition(currentMSecs); - if (tran.atMSecsSinceEpoch != invalidMSecs() - && ((timeType == QTimeZone::DaylightTime && tran.daylightTimeOffset != 0) - || (timeType == QTimeZone::StandardTime && tran.daylightTimeOffset == 0))) { - return tran.abbreviation; - } - - // Otherwise get prev tran and if valid and is what we want, then use it - tran = previousTransition(currentMSecs); - if (tran.atMSecsSinceEpoch != invalidMSecs()) - tran = previousTransition(tran.atMSecsSinceEpoch); - if (tran.atMSecsSinceEpoch != invalidMSecs() - && ((timeType == QTimeZone::DaylightTime && tran.daylightTimeOffset != 0) - || (timeType == QTimeZone::StandardTime && tran.daylightTimeOffset == 0))) { - return tran.abbreviation; - } - - // Otherwise is strange sequence, so work backwards through trans looking for first match, if any - auto it = std::partition_point(m_tranTimes.cbegin(), m_tranTimes.cend(), - [currentMSecs](const QTzTransitionTime &at) { - return at.atMSecsSinceEpoch <= currentMSecs; - }); - - while (it != m_tranTimes.cbegin()) { - --it; - tran = dataForTzTransition(*it); - int offset = tran.daylightTimeOffset; - if ((timeType == QTimeZone::DaylightTime) != (offset == 0)) - return tran.abbreviation; - } - - // Otherwise if no match use current data - return data(currentMSecs).abbreviation; -} - -QString QTzTimeZonePrivate::abbreviation(qint64 atMSecsSinceEpoch) const -{ - return data(atMSecsSinceEpoch).abbreviation; -} - -int QTzTimeZonePrivate::offsetFromUtc(qint64 atMSecsSinceEpoch) const -{ - const QTimeZonePrivate::Data tran = data(atMSecsSinceEpoch); - return tran.offsetFromUtc; // == tran.standardTimeOffset + tran.daylightTimeOffset -} - -int QTzTimeZonePrivate::standardTimeOffset(qint64 atMSecsSinceEpoch) const -{ - return data(atMSecsSinceEpoch).standardTimeOffset; -} - -int QTzTimeZonePrivate::daylightTimeOffset(qint64 atMSecsSinceEpoch) const -{ - return data(atMSecsSinceEpoch).daylightTimeOffset; -} - -bool QTzTimeZonePrivate::hasDaylightTime() const -{ - // TODO Perhaps cache as frequently accessed? - for (const QTzTransitionRule &rule : m_tranRules) { - if (rule.dstOffset != 0) - return true; - } - return false; -} - -bool QTzTimeZonePrivate::isDaylightTime(qint64 atMSecsSinceEpoch) const -{ - return (daylightTimeOffset(atMSecsSinceEpoch) != 0); -} - -QTimeZonePrivate::Data QTzTimeZonePrivate::dataForTzTransition(QTzTransitionTime tran) const -{ - QTimeZonePrivate::Data data; - data.atMSecsSinceEpoch = tran.atMSecsSinceEpoch; - QTzTransitionRule rule = m_tranRules.at(tran.ruleIndex); - data.standardTimeOffset = rule.stdOffset; - data.daylightTimeOffset = rule.dstOffset; - data.offsetFromUtc = rule.stdOffset + rule.dstOffset; - data.abbreviation = QString::fromUtf8(m_abbreviations.at(rule.abbreviationIndex)); - return data; -} - -QVector<QTimeZonePrivate::Data> QTzTimeZonePrivate::getPosixTransitions(qint64 msNear) const -{ - const int year = QDateTime::fromMSecsSinceEpoch(msNear, Qt::UTC).date().year(); - // The Data::atMSecsSinceEpoch of the single entry if zone is constant: - qint64 atTime = m_tranTimes.isEmpty() ? msNear : m_tranTimes.last().atMSecsSinceEpoch; - return calculatePosixTransitions(m_posixRule, year - 1, year + 1, atTime); -} - -QTimeZonePrivate::Data QTzTimeZonePrivate::data(qint64 forMSecsSinceEpoch) const -{ - // If the required time is after the last transition (or there were none) - // and we have a POSIX rule, then use it: - if (!m_posixRule.isEmpty() - && (m_tranTimes.isEmpty() || m_tranTimes.last().atMSecsSinceEpoch < forMSecsSinceEpoch)) { - QVector<QTimeZonePrivate::Data> posixTrans = getPosixTransitions(forMSecsSinceEpoch); - auto it = std::partition_point(posixTrans.cbegin(), posixTrans.cend(), - [forMSecsSinceEpoch] (const QTimeZonePrivate::Data &at) { - return at.atMSecsSinceEpoch <= forMSecsSinceEpoch; - }); - // Use most recent, if any in the past; or the first if we have no other rules: - if (it > posixTrans.cbegin() || (m_tranTimes.isEmpty() && it < posixTrans.cend())) { - QTimeZonePrivate::Data data = *(it > posixTrans.cbegin() ? it - 1 : it); - data.atMSecsSinceEpoch = forMSecsSinceEpoch; - return data; - } - } - if (m_tranTimes.isEmpty()) // Only possible if !isValid() - return invalidData(); - - // Otherwise, use the rule for the most recent or first transition: - auto last = std::partition_point(m_tranTimes.cbegin(), m_tranTimes.cend(), - [forMSecsSinceEpoch] (const QTzTransitionTime &at) { - return at.atMSecsSinceEpoch <= forMSecsSinceEpoch; - }); - if (last > m_tranTimes.cbegin()) - --last; - Data data = dataForTzTransition(*last); - data.atMSecsSinceEpoch = forMSecsSinceEpoch; - return data; -} - -bool QTzTimeZonePrivate::hasTransitions() const -{ - return true; -} - -QTimeZonePrivate::Data QTzTimeZonePrivate::nextTransition(qint64 afterMSecsSinceEpoch) const -{ - // If the required time is after the last transition (or there were none) - // and we have a POSIX rule, then use it: - if (!m_posixRule.isEmpty() - && (m_tranTimes.isEmpty() || m_tranTimes.last().atMSecsSinceEpoch < afterMSecsSinceEpoch)) { - QVector<QTimeZonePrivate::Data> posixTrans = getPosixTransitions(afterMSecsSinceEpoch); - auto it = std::partition_point(posixTrans.cbegin(), posixTrans.cend(), - [afterMSecsSinceEpoch] (const QTimeZonePrivate::Data &at) { - return at.atMSecsSinceEpoch <= afterMSecsSinceEpoch; - }); - - return it == posixTrans.cend() ? invalidData() : *it; - } - - // Otherwise, if we can find a valid tran, use its rule: - auto last = std::partition_point(m_tranTimes.cbegin(), m_tranTimes.cend(), - [afterMSecsSinceEpoch] (const QTzTransitionTime &at) { - return at.atMSecsSinceEpoch <= afterMSecsSinceEpoch; - }); - return last != m_tranTimes.cend() ? dataForTzTransition(*last) : invalidData(); -} - -QTimeZonePrivate::Data QTzTimeZonePrivate::previousTransition(qint64 beforeMSecsSinceEpoch) const -{ - // If the required time is after the last transition (or there were none) - // and we have a POSIX rule, then use it: - if (!m_posixRule.isEmpty() - && (m_tranTimes.isEmpty() || m_tranTimes.last().atMSecsSinceEpoch < beforeMSecsSinceEpoch)) { - QVector<QTimeZonePrivate::Data> posixTrans = getPosixTransitions(beforeMSecsSinceEpoch); - auto it = std::partition_point(posixTrans.cbegin(), posixTrans.cend(), - [beforeMSecsSinceEpoch] (const QTimeZonePrivate::Data &at) { - return at.atMSecsSinceEpoch < beforeMSecsSinceEpoch; - }); - if (it > posixTrans.cbegin()) - return *--it; - // It fell between the last transition (if any) and the first of the POSIX rule: - return m_tranTimes.isEmpty() ? invalidData() : dataForTzTransition(m_tranTimes.last()); - } - - // Otherwise if we can find a valid tran then use its rule - auto last = std::partition_point(m_tranTimes.cbegin(), m_tranTimes.cend(), - [beforeMSecsSinceEpoch] (const QTzTransitionTime &at) { - return at.atMSecsSinceEpoch < beforeMSecsSinceEpoch; - }); - return last > m_tranTimes.cbegin() ? dataForTzTransition(*--last) : invalidData(); -} - -// TODO Could cache the value and monitor the required files for any changes -QByteArray QTzTimeZonePrivate::systemTimeZoneId() const -{ - // Check TZ env var first, if not populated try find it - QByteArray ianaId = qgetenv("TZ"); - if (!ianaId.isEmpty() && ianaId.at(0) == ':') - ianaId = ianaId.mid(1); - - // The TZ value can be ":/etc/localtime" which libc considers - // to be a "default timezone", in which case it will be read - // by one of the blocks below, so unset it here so it is not - // considered as a valid/found ianaId - if (ianaId == "/etc/localtime") - ianaId.clear(); - - // On most distros /etc/localtime is a symlink to a real file so extract name from the path - if (ianaId.isEmpty()) { - const QString path = QFile::symLinkTarget(QStringLiteral("/etc/localtime")); - if (!path.isEmpty()) { - // /etc/localtime is a symlink to the current TZ file, so extract from path - int index = path.indexOf(QLatin1String("/zoneinfo/")); - if (index != -1) - ianaId = path.mid(index + 10).toUtf8(); - } - } - - // On Debian Etch up to Jessie, /etc/localtime is a regular file while the actual name is in /etc/timezone - if (ianaId.isEmpty()) { - QFile tzif(QStringLiteral("/etc/timezone")); - if (tzif.open(QIODevice::ReadOnly)) { - // TODO QTextStream inefficient, replace later - QTextStream ts(&tzif); - if (!ts.atEnd()) - ianaId = ts.readLine().toUtf8(); - } - } - - // On some Red Hat distros /etc/localtime is real file with name held in /etc/sysconfig/clock - // in a line like ZONE="Europe/Oslo" or TIMEZONE="Europe/Oslo" - if (ianaId.isEmpty()) { - QFile tzif(QStringLiteral("/etc/sysconfig/clock")); - if (tzif.open(QIODevice::ReadOnly)) { - // TODO QTextStream inefficient, replace later - QTextStream ts(&tzif); - QString line; - while (ianaId.isEmpty() && !ts.atEnd() && ts.status() == QTextStream::Ok) { - line = ts.readLine(); - if (line.startsWith(QLatin1String("ZONE="))) { - ianaId = line.mid(6, line.size() - 7).toUtf8(); - } else if (line.startsWith(QLatin1String("TIMEZONE="))) { - ianaId = line.mid(10, line.size() - 11).toUtf8(); - } - } - } - } - - // Some systems (e.g. uClibc) have a default value for $TZ in /etc/TZ: - if (ianaId.isEmpty()) { - QFile zone(QStringLiteral("/etc/TZ")); - if (zone.open(QIODevice::ReadOnly)) - ianaId = zone.readAll().trimmed(); - } - - // Give up for now and return UTC - if (ianaId.isEmpty()) - ianaId = utcQByteArray(); - - return ianaId; -} - -bool QTzTimeZonePrivate::isTimeZoneIdAvailable(const QByteArray &ianaId) const -{ - return tzZones->contains(ianaId); -} - -QList<QByteArray> QTzTimeZonePrivate::availableTimeZoneIds() const -{ - QList<QByteArray> result = tzZones->keys(); - std::sort(result.begin(), result.end()); - return result; -} - -QList<QByteArray> QTzTimeZonePrivate::availableTimeZoneIds(QLocale::Country country) const -{ - // TODO AnyCountry - QList<QByteArray> result; - for (auto it = tzZones->cbegin(), end = tzZones->cend(); it != end; ++it) { - if (it.value().country == country) - result << it.key(); - } - std::sort(result.begin(), result.end()); - return result; -} - -QT_END_NAMESPACE diff --git a/src/corelib/tools/qtimezoneprivate_win.cpp b/src/corelib/tools/qtimezoneprivate_win.cpp deleted file mode 100644 index 1bf2366748..0000000000 --- a/src/corelib/tools/qtimezoneprivate_win.cpp +++ /dev/null @@ -1,927 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2013 John Layt <jlayt@kde.org> -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtCore module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU Lesser General Public License Usage -** Alternatively, this file may be used under the terms of the GNU Lesser -** General Public License version 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qtimezone.h" -#include "qtimezoneprivate_p.h" - -#include "qdatetime.h" - -#include "qdebug.h" - -#include <algorithm> - -QT_BEGIN_NAMESPACE - -#ifndef Q_OS_WINRT -// The registry-based timezone backend is not available on WinRT, which falls back to equivalent APIs. -#define QT_USE_REGISTRY_TIMEZONE 1 -#endif - -/* - Private - - Windows system implementation -*/ - -#define MAX_KEY_LENGTH 255 -#define FILETIME_UNIX_EPOCH Q_UINT64_C(116444736000000000) - -// MSDN home page for Time support -// http://msdn.microsoft.com/en-us/library/windows/desktop/ms724962%28v=vs.85%29.aspx - -// For Windows XP and later refer to MSDN docs on TIME_ZONE_INFORMATION structure -// http://msdn.microsoft.com/en-gb/library/windows/desktop/ms725481%28v=vs.85%29.aspx - -// Vista introduced support for historic data, see MSDN docs on DYNAMIC_TIME_ZONE_INFORMATION -// http://msdn.microsoft.com/en-gb/library/windows/desktop/ms724253%28v=vs.85%29.aspx -#ifdef QT_USE_REGISTRY_TIMEZONE -static const char tzRegPath[] = "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Time Zones"; -static const char currTzRegPath[] = "SYSTEM\\CurrentControlSet\\Control\\TimeZoneInformation"; -#endif - -enum { - MIN_YEAR = -292275056, - MAX_YEAR = 292278994, - MSECS_PER_DAY = 86400000, - TIME_T_MAX = 2145916799, // int maximum 2037-12-31T23:59:59 UTC - JULIAN_DAY_FOR_EPOCH = 2440588 // result of julianDayFromDate(1970, 1, 1) -}; - -// Copied from MSDN, see above for link -typedef struct _REG_TZI_FORMAT -{ - LONG Bias; - LONG StandardBias; - LONG DaylightBias; - SYSTEMTIME StandardDate; - SYSTEMTIME DaylightDate; -} REG_TZI_FORMAT; - -namespace { - -// Fast and reliable conversion from msecs to date for all values -// Adapted from QDateTime msecsToDate -QDate msecsToDate(qint64 msecs) -{ - qint64 jd = JULIAN_DAY_FOR_EPOCH; - - if (qAbs(msecs) >= MSECS_PER_DAY) { - jd += (msecs / MSECS_PER_DAY); - msecs %= MSECS_PER_DAY; - } - - if (msecs < 0) { - qint64 ds = MSECS_PER_DAY - msecs - 1; - jd -= ds / MSECS_PER_DAY; - } - - return QDate::fromJulianDay(jd); -} - -bool equalSystemtime(const SYSTEMTIME &t1, const SYSTEMTIME &t2) -{ - return (t1.wYear == t2.wYear - && t1.wMonth == t2.wMonth - && t1.wDay == t2.wDay - && t1.wDayOfWeek == t2.wDayOfWeek - && t1.wHour == t2.wHour - && t1.wMinute == t2.wMinute - && t1.wSecond == t2.wSecond - && t1.wMilliseconds == t2.wMilliseconds); -} - -bool equalTzi(const TIME_ZONE_INFORMATION &tzi1, const TIME_ZONE_INFORMATION &tzi2) -{ - return(tzi1.Bias == tzi2.Bias - && tzi1.StandardBias == tzi2.StandardBias - && equalSystemtime(tzi1.StandardDate, tzi2.StandardDate) - && wcscmp(tzi1.StandardName, tzi2.StandardName) == 0 - && tzi1.DaylightBias == tzi2.DaylightBias - && equalSystemtime(tzi1.DaylightDate, tzi2.DaylightDate) - && wcscmp(tzi1.DaylightName, tzi2.DaylightName) == 0); -} - -#ifdef QT_USE_REGISTRY_TIMEZONE -bool openRegistryKey(const QString &keyPath, HKEY *key) -{ - return RegOpenKeyEx(HKEY_LOCAL_MACHINE, reinterpret_cast<const wchar_t*>(keyPath.utf16()), - 0, KEY_READ, key) == ERROR_SUCCESS; -} - -QString readRegistryString(const HKEY &key, const wchar_t *value) -{ - wchar_t buffer[MAX_PATH] = {0}; - DWORD size = sizeof(wchar_t) * MAX_PATH; - RegQueryValueEx(key, value, nullptr, nullptr, reinterpret_cast<LPBYTE>(buffer), &size); - return QString::fromWCharArray(buffer); -} - -int readRegistryValue(const HKEY &key, const wchar_t *value) -{ - DWORD buffer; - DWORD size = sizeof(buffer); - RegQueryValueEx(key, value, nullptr, nullptr, reinterpret_cast<LPBYTE>(&buffer), &size); - return buffer; -} - -QWinTimeZonePrivate::QWinTransitionRule readRegistryRule(const HKEY &key, - const wchar_t *value, bool *ok) -{ - *ok = false; - QWinTimeZonePrivate::QWinTransitionRule rule; - REG_TZI_FORMAT tzi; - DWORD tziSize = sizeof(tzi); - if (RegQueryValueEx(key, value, nullptr, nullptr, reinterpret_cast<BYTE *>(&tzi), &tziSize) - == ERROR_SUCCESS) { - rule.startYear = 0; - rule.standardTimeBias = tzi.Bias + tzi.StandardBias; - rule.daylightTimeBias = tzi.Bias + tzi.DaylightBias - rule.standardTimeBias; - rule.standardTimeRule = tzi.StandardDate; - rule.daylightTimeRule = tzi.DaylightDate; - *ok = true; - } - return rule; -} - -TIME_ZONE_INFORMATION getRegistryTzi(const QByteArray &windowsId, bool *ok) -{ - *ok = false; - TIME_ZONE_INFORMATION tzi; - REG_TZI_FORMAT regTzi; - DWORD regTziSize = sizeof(regTzi); - HKEY key = NULL; - const QString tziKeyPath = QString::fromUtf8(tzRegPath) + QLatin1Char('\\') - + QString::fromUtf8(windowsId); - - if (openRegistryKey(tziKeyPath, &key)) { - - DWORD size = sizeof(tzi.DaylightName); - RegQueryValueEx(key, L"Dlt", nullptr, nullptr, reinterpret_cast<LPBYTE>(tzi.DaylightName), &size); - - size = sizeof(tzi.StandardName); - RegQueryValueEx(key, L"Std", nullptr, nullptr, reinterpret_cast<LPBYTE>(tzi.StandardName), &size); - - if (RegQueryValueEx(key, L"TZI", nullptr, nullptr, reinterpret_cast<BYTE *>(®Tzi), ®TziSize) - == ERROR_SUCCESS) { - tzi.Bias = regTzi.Bias; - tzi.StandardBias = regTzi.StandardBias; - tzi.DaylightBias = regTzi.DaylightBias; - tzi.StandardDate = regTzi.StandardDate; - tzi.DaylightDate = regTzi.DaylightDate; - *ok = true; - } - - RegCloseKey(key); - } - - return tzi; -} -#else // QT_USE_REGISTRY_TIMEZONE -struct QWinDynamicTimeZone -{ - QString standardName; - QString daylightName; - QString timezoneName; - qint32 bias; - bool daylightTime; -}; - -typedef QHash<QByteArray, QWinDynamicTimeZone> QWinRTTimeZoneHash; - -Q_GLOBAL_STATIC(QWinRTTimeZoneHash, gTimeZones) - -void enumerateTimeZones() -{ - DYNAMIC_TIME_ZONE_INFORMATION dtzInfo; - quint32 index = 0; - QString prevTimeZoneKeyName; - while (SUCCEEDED(EnumDynamicTimeZoneInformation(index++, &dtzInfo))) { - QWinDynamicTimeZone item; - item.timezoneName = QString::fromWCharArray(dtzInfo.TimeZoneKeyName); - // As soon as key name repeats, break. Some systems continue to always - // return the last item independent of index being out of range - if (item.timezoneName == prevTimeZoneKeyName) - break; - item.standardName = QString::fromWCharArray(dtzInfo.StandardName); - item.daylightName = QString::fromWCharArray(dtzInfo.DaylightName); - item.daylightTime = !dtzInfo.DynamicDaylightTimeDisabled; - item.bias = dtzInfo.Bias; - gTimeZones->insert(item.timezoneName.toUtf8(), item); - prevTimeZoneKeyName = item.timezoneName; - } -} - -DYNAMIC_TIME_ZONE_INFORMATION dynamicInfoForId(const QByteArray &windowsId) -{ - DYNAMIC_TIME_ZONE_INFORMATION dtzInfo; - quint32 index = 0; - QString prevTimeZoneKeyName; - while (SUCCEEDED(EnumDynamicTimeZoneInformation(index++, &dtzInfo))) { - const QString timeZoneName = QString::fromWCharArray(dtzInfo.TimeZoneKeyName); - if (timeZoneName == QLatin1String(windowsId)) - break; - if (timeZoneName == prevTimeZoneKeyName) - break; - prevTimeZoneKeyName = timeZoneName; - } - return dtzInfo; -} - -QWinTimeZonePrivate::QWinTransitionRule -readDynamicRule(DYNAMIC_TIME_ZONE_INFORMATION &dtzi, int year, bool *ok) -{ - TIME_ZONE_INFORMATION tzi; - QWinTimeZonePrivate::QWinTransitionRule rule; - *ok = GetTimeZoneInformationForYear(year, &dtzi, &tzi); - if (*ok) { - rule.startYear = 0; - rule.standardTimeBias = tzi.Bias + tzi.StandardBias; - rule.daylightTimeBias = tzi.Bias + tzi.DaylightBias - rule.standardTimeBias; - rule.standardTimeRule = tzi.StandardDate; - rule.daylightTimeRule = tzi.DaylightDate; - } - return rule; -} -#endif // QT_USE_REGISTRY_TIMEZONE - -bool isSameRule(const QWinTimeZonePrivate::QWinTransitionRule &last, - const QWinTimeZonePrivate::QWinTransitionRule &rule) -{ - // In particular, when this is true and either wYear is 0, so is the other; - // so if one rule is recurrent and they're equal, so is the other. If - // either rule *isn't* recurrent, it has non-0 wYear which shall be - // different from the other's. Note that we don't compare .startYear, since - // that will always be different. - return equalSystemtime(last.standardTimeRule, rule.standardTimeRule) - && equalSystemtime(last.daylightTimeRule, rule.daylightTimeRule) - && last.standardTimeBias == rule.standardTimeBias - && last.daylightTimeBias == rule.daylightTimeBias; -} - -QList<QByteArray> availableWindowsIds() -{ -#ifdef QT_USE_REGISTRY_TIMEZONE - // TODO Consider caching results in a global static, very unlikely to change. - QList<QByteArray> list; - HKEY key = NULL; - if (openRegistryKey(QString::fromUtf8(tzRegPath), &key)) { - DWORD idCount = 0; - if (RegQueryInfoKey(key, 0, 0, 0, &idCount, 0, 0, 0, 0, 0, 0, 0) == ERROR_SUCCESS - && idCount > 0) { - for (DWORD i = 0; i < idCount; ++i) { - DWORD maxLen = MAX_KEY_LENGTH; - TCHAR buffer[MAX_KEY_LENGTH]; - if (RegEnumKeyEx(key, i, buffer, &maxLen, 0, 0, 0, 0) == ERROR_SUCCESS) - list.append(QString::fromWCharArray(buffer).toUtf8()); - } - } - RegCloseKey(key); - } - return list; -#else // QT_USE_REGISTRY_TIMEZONE - if (gTimeZones->isEmpty()) - enumerateTimeZones(); - return gTimeZones->keys(); -#endif // QT_USE_REGISTRY_TIMEZONE -} - -QByteArray windowsSystemZoneId() -{ -#ifdef QT_USE_REGISTRY_TIMEZONE - // On Vista and later is held in the value TimeZoneKeyName in key currTzRegPath - QString id; - HKEY key = NULL; - QString tziKeyPath = QString::fromUtf8(currTzRegPath); - if (openRegistryKey(tziKeyPath, &key)) { - id = readRegistryString(key, L"TimeZoneKeyName"); - RegCloseKey(key); - if (!id.isEmpty()) - return std::move(id).toUtf8(); - } - - // On XP we have to iterate over the zones until we find a match on - // names/offsets with the current data - TIME_ZONE_INFORMATION sysTzi; - GetTimeZoneInformation(&sysTzi); - bool ok = false; - const auto winIds = availableWindowsIds(); - for (const QByteArray &winId : winIds) { - if (equalTzi(getRegistryTzi(winId, &ok), sysTzi)) - return winId; - } -#else // QT_USE_REGISTRY_TIMEZONE - DYNAMIC_TIME_ZONE_INFORMATION dtzi; - if (SUCCEEDED(GetDynamicTimeZoneInformation(&dtzi))) - return QString::fromWCharArray(dtzi.TimeZoneKeyName).toLocal8Bit(); -#endif // QT_USE_REGISTRY_TIMEZONE - - // If we can't determine the current ID use UTC - return QTimeZonePrivate::utcQByteArray(); -} - -QDate calculateTransitionLocalDate(const SYSTEMTIME &rule, int year) -{ - // If month is 0 then there is no date - if (rule.wMonth == 0) - return QDate(); - - // Interpret SYSTEMTIME according to the slightly quirky rules in: - // https://msdn.microsoft.com/en-us/library/windows/desktop/ms725481(v=vs.85).aspx - - // If the year is set, the rule gives an absolute date: - if (rule.wYear) - return QDate(rule.wYear, rule.wMonth, rule.wDay); - - // Otherwise, the rule date is annual and relative: - const int dayOfWeek = rule.wDayOfWeek == 0 ? 7 : rule.wDayOfWeek; - QDate date(year, rule.wMonth, 1); - // How many days before was last dayOfWeek before target month ? - int adjust = dayOfWeek - date.dayOfWeek(); // -6 <= adjust < 7 - if (adjust >= 0) // Ensure -7 <= adjust < 0: - adjust -= 7; - // Normally, wDay is day-within-month; but here it is 1 for the first - // of the given dayOfWeek in the month, through 4 for the fourth or ... - adjust += (rule.wDay < 1 ? 1 : rule.wDay > 4 ? 5 : rule.wDay) * 7; - date = date.addDays(adjust); - // ... 5 for the last; so back up by weeks to get within the month: - if (date.month() != rule.wMonth) { - Q_ASSERT(rule.wDay > 4); - // (Note that, with adjust < 0, date <= 28th of our target month - // is guaranteed when wDay <= 4, or after our first -7 here.) - date = date.addDays(-7); - Q_ASSERT(date.month() == rule.wMonth); - } - return date; -} - -// Converts a date/time value into msecs -inline qint64 timeToMSecs(const QDate &date, const QTime &time) -{ - return ((date.toJulianDay() - JULIAN_DAY_FOR_EPOCH) * MSECS_PER_DAY) - + time.msecsSinceStartOfDay(); -} - -qint64 calculateTransitionForYear(const SYSTEMTIME &rule, int year, int bias) -{ - // TODO Consider caching the calculated values - i.e. replace SYSTEMTIME in - // WinTransitionRule; do this in init() once and store the results. - const QDate date = calculateTransitionLocalDate(rule, year); - const QTime time = QTime(rule.wHour, rule.wMinute, rule.wSecond); - if (date.isValid() && time.isValid()) - return timeToMSecs(date, time) + bias * 60000; - return QTimeZonePrivate::invalidMSecs(); -} - -struct TransitionTimePair -{ - // Transition times after the epoch, in ms: - qint64 std, dst; - // If either is invalidMSecs(), which shall then be < the other, there is no - // DST and the other describes a change in actual standard offset. - - TransitionTimePair(const QWinTimeZonePrivate::QWinTransitionRule &rule, - int year, int oldYearOffset) - // The local time in Daylight Time of the switch to Standard Time - : std(calculateTransitionForYear(rule.standardTimeRule, year, - rule.standardTimeBias + rule.daylightTimeBias)), - // The local time in Standard Time of the switch to Daylight Time - dst(calculateTransitionForYear(rule.daylightTimeRule, year, rule.standardTimeBias)) - { - /* - Check for potential "fake DST", used by MS's APIs because the - TIME_ZONE_INFORMATION spec either expresses no transitions in the - year, or expresses a transition of each kind, even if standard time - did change in a year with no DST. We've seen year-start fake-DST - (whose offset matches prior standard offset, in which the previous - year ended); and conjecture that similar might be used at a year-end. - (This might be used for a southern-hemisphere zone, where the start of - the year usually is in DST, when applicable.) Note that, here, wDay - identifies an instance of a given day-of-week in the month, with 5 - meaning last. - - Either the alleged standardTimeRule or the alleged daylightTimeRule - may be faked; either way, the transition is actually a change to the - current standard offset; but the unfaked half of the rule contains the - useful bias data, so we have to go along with its lies. - - Example: Russia/Moscow - Format: -bias +( -stdBias, stdDate | -dstBias, dstDate ) notes - Last year of DST, 2010: 180 +( 0, 0-10-5 3:0 | 60, 0-3-5 2:0 ) normal DST - Zone change in 2011: 180 +( 0, 0-1-1 0:0 | 60 0-3-5 2:0 ) fake DST at transition - Fixed standard in 2012: 240 +( 0, 0-0-0 0:0 | 60, 0-0-0 0:0 ) standard time years - Zone change in 2014: 180 +( 0, 0-10-5 2:0 | 60, 0-1-1 0:0 ) fake DST at year-start - The last of these is missing on Win7 VMs (too old to know about it). - */ - if (rule.daylightTimeRule.wMonth == 1 && rule.daylightTimeRule.wDay == 1) { - // Fake "DST transition" at start of year producing the same offset as - // previous year ended in. - if (rule.standardTimeBias + rule.daylightTimeBias == oldYearOffset) - dst = QTimeZonePrivate::invalidMSecs(); - } else if (rule.daylightTimeRule.wMonth == 12 && rule.daylightTimeRule.wDay > 3) { - // Similar, conjectured, for end of year, not changing offset. - if (rule.daylightTimeBias == 0) - dst = QTimeZonePrivate::invalidMSecs(); - } - if (rule.standardTimeRule.wMonth == 1 && rule.standardTimeRule.wDay == 1) { - // Fake "transition out of DST" at start of year producing the same - // offset as previous year ended in. - if (rule.standardTimeBias == oldYearOffset) - std = QTimeZonePrivate::invalidMSecs(); - } else if (rule.standardTimeRule.wMonth == 12 && rule.standardTimeRule.wDay > 3) { - // Similar, conjectured, for end of year, not changing offset. - if (rule.daylightTimeBias == 0) - std = QTimeZonePrivate::invalidMSecs(); - } - } - - bool fakesDst() const - { - return std == QTimeZonePrivate::invalidMSecs() - || dst == QTimeZonePrivate::invalidMSecs(); - } -}; - -int yearEndOffset(const QWinTimeZonePrivate::QWinTransitionRule &rule, int year) -{ - int offset = rule.standardTimeBias; - // Only needed to help another TransitionTimePair work out year + 1's start - // offset; and the oldYearOffset we use only affects an alleged transition - // at the *start* of this year, so it doesn't matter if we guess wrong here: - TransitionTimePair pair(rule, year, offset); - if (pair.dst > pair.std) - offset += rule.daylightTimeBias; - return offset; -} - -QLocale::Country userCountry() -{ - const GEOID id = GetUserGeoID(GEOCLASS_NATION); - wchar_t code[3]; - const int size = GetGeoInfo(id, GEO_ISO2, code, 3, 0); - return (size == 3) ? QLocalePrivate::codeToCountry(QStringView(code, size)) - : QLocale::AnyCountry; -} - -// Index of last rule in rules with .startYear <= year: -int ruleIndexForYear(const QList<QWinTimeZonePrivate::QWinTransitionRule> &rules, int year) -{ - if (rules.last().startYear <= year) - return rules.count() - 1; - // We don't have a rule for before the first, but the first is the best we can offer: - if (rules.first().startYear > year) - return 0; - - // Otherwise, use binary chop: - int lo = 0, hi = rules.count(); - // invariant: rules[i].startYear <= year < rules[hi].startYear - // subject to treating rules[rules.count()] as "off the end of time" - while (lo + 1 < hi) { - const int mid = (lo + hi) / 2; - // lo + 2 <= hi, so lo + 1 <= mid <= hi - 1, so lo < mid < hi - // In particular, mid < rules.count() - const int midYear = rules.at(mid).startYear; - if (midYear > year) - hi = mid; - else if (midYear < year) - lo = mid; - else // No two rules have the same startYear: - return mid; - } - return lo; -} - -} // anonymous namespace - -// Create the system default time zone -QWinTimeZonePrivate::QWinTimeZonePrivate() - : QTimeZonePrivate() -{ - init(QByteArray()); -} - -// Create a named time zone -QWinTimeZonePrivate::QWinTimeZonePrivate(const QByteArray &ianaId) - : QTimeZonePrivate() -{ - init(ianaId); -} - -QWinTimeZonePrivate::QWinTimeZonePrivate(const QWinTimeZonePrivate &other) - : QTimeZonePrivate(other), m_windowsId(other.m_windowsId), - m_displayName(other.m_displayName), m_standardName(other.m_standardName), - m_daylightName(other.m_daylightName), m_tranRules(other.m_tranRules) -{ -} - -QWinTimeZonePrivate::~QWinTimeZonePrivate() -{ -} - -QWinTimeZonePrivate *QWinTimeZonePrivate::clone() const -{ - return new QWinTimeZonePrivate(*this); -} - -void QWinTimeZonePrivate::init(const QByteArray &ianaId) -{ - if (ianaId.isEmpty()) { - m_windowsId = windowsSystemZoneId(); - m_id = systemTimeZoneId(); - } else { - m_windowsId = ianaIdToWindowsId(ianaId); - m_id = ianaId; - } - - bool badMonth = false; // Only warn once per zone, if at all. - if (!m_windowsId.isEmpty()) { -#ifdef QT_USE_REGISTRY_TIMEZONE - // Open the base TZI for the time zone - HKEY baseKey = NULL; - const QString baseKeyPath = QString::fromUtf8(tzRegPath) + QLatin1Char('\\') - + QString::fromUtf8(m_windowsId); - if (openRegistryKey(baseKeyPath, &baseKey)) { - // Load the localized names - m_displayName = readRegistryString(baseKey, L"Display"); - m_standardName = readRegistryString(baseKey, L"Std"); - m_daylightName = readRegistryString(baseKey, L"Dlt"); - // On Vista and later the optional dynamic key holds historic data - const QString dynamicKeyPath = baseKeyPath + QLatin1String("\\Dynamic DST"); - HKEY dynamicKey = NULL; - if (openRegistryKey(dynamicKeyPath, &dynamicKey)) { - // Find out the start and end years stored, then iterate over them - int startYear = readRegistryValue(dynamicKey, L"FirstEntry"); - int endYear = readRegistryValue(dynamicKey, L"LastEntry"); - for (int year = startYear; year <= endYear; ++year) { - bool ruleOk; - QWinTransitionRule rule = readRegistryRule(dynamicKey, - reinterpret_cast<LPCWSTR>(QString::number(year).utf16()), - &ruleOk); - if (ruleOk - // Don't repeat a recurrent rule: - && (m_tranRules.isEmpty() - || !isSameRule(m_tranRules.last(), rule))) { - if (!badMonth - && (rule.standardTimeRule.wMonth == 0) - != (rule.daylightTimeRule.wMonth == 0)) { - badMonth = true; - qWarning("MS registry TZ API violated its wMonth constraint;" - "this may cause mistakes for %s from %d", - ianaId.constData(), year); - } - rule.startYear = m_tranRules.isEmpty() ? MIN_YEAR : year; - m_tranRules.append(rule); - } - } - RegCloseKey(dynamicKey); - } else { - // No dynamic data so use the base data - bool ruleOk; - QWinTransitionRule rule = readRegistryRule(baseKey, L"TZI", &ruleOk); - rule.startYear = MIN_YEAR; - if (ruleOk) - m_tranRules.append(rule); - } - RegCloseKey(baseKey); - } -#else // QT_USE_REGISTRY_TIMEZONE - if (gTimeZones->isEmpty()) - enumerateTimeZones(); - QWinRTTimeZoneHash::const_iterator it = gTimeZones->find(m_windowsId); - if (it != gTimeZones->constEnd()) { - m_displayName = it->timezoneName; - m_standardName = it->standardName; - m_daylightName = it->daylightName; - DWORD firstYear = 0; - DWORD lastYear = 0; - DYNAMIC_TIME_ZONE_INFORMATION dtzi = dynamicInfoForId(m_windowsId); - if (GetDynamicTimeZoneInformationEffectiveYears(&dtzi, &firstYear, &lastYear) - == ERROR_SUCCESS && firstYear < lastYear) { - for (DWORD year = firstYear; year <= lastYear; ++year) { - bool ok = false; - QWinTransitionRule rule = readDynamicRule(dtzi, year, &ok); - if (ok - // Don't repeat a recurrent rule - && (m_tranRules.isEmpty() - || !isSameRule(m_tranRules.last(), rule))) { - if (!badMonth - && (rule.standardTimeRule.wMonth == 0) - != (rule.daylightTimeRule.wMonth == 0)) { - badMonth = true; - qWarning("MS dynamic TZ API violated its wMonth constraint;" - "this may cause mistakes for %s from %d", - ianaId.constData(), year); - } - rule.startYear = m_tranRules.isEmpty() ? MIN_YEAR : year; - m_tranRules.append(rule); - } - } - } else { - // At least try to get the non-dynamic data: - dtzi.DynamicDaylightTimeDisabled = false; - bool ok = false; - QWinTransitionRule rule = readDynamicRule(dtzi, 1970, &ok); - if (ok) { - rule.startYear = MIN_YEAR; - m_tranRules.append(rule); - } - } - } -#endif // QT_USE_REGISTRY_TIMEZONE - } - - // If there are no rules then we failed to find a windowsId or any tzi info - if (m_tranRules.size() == 0) { - m_id.clear(); - m_windowsId.clear(); - m_displayName.clear(); - } -} - -QString QWinTimeZonePrivate::comment() const -{ - return m_displayName; -} - -QString QWinTimeZonePrivate::displayName(QTimeZone::TimeType timeType, - QTimeZone::NameType nameType, - const QLocale &locale) const -{ - // TODO Registry holds MUI keys, should be able to look up translations? - Q_UNUSED(locale); - - if (nameType == QTimeZone::OffsetName) { - const QWinTransitionRule &rule = - m_tranRules.at(ruleIndexForYear(m_tranRules, QDate::currentDate().year())); - int offset = rule.standardTimeBias; - if (timeType == QTimeZone::DaylightTime) - offset += rule.daylightTimeBias; - return isoOffsetFormat(offset * -60); - } - - switch (timeType) { - case QTimeZone::DaylightTime : - return m_daylightName; - case QTimeZone::GenericTime : - return m_displayName; - case QTimeZone::StandardTime : - return m_standardName; - } - return m_standardName; -} - -QString QWinTimeZonePrivate::abbreviation(qint64 atMSecsSinceEpoch) const -{ - return data(atMSecsSinceEpoch).abbreviation; -} - -int QWinTimeZonePrivate::offsetFromUtc(qint64 atMSecsSinceEpoch) const -{ - return data(atMSecsSinceEpoch).offsetFromUtc; -} - -int QWinTimeZonePrivate::standardTimeOffset(qint64 atMSecsSinceEpoch) const -{ - return data(atMSecsSinceEpoch).standardTimeOffset; -} - -int QWinTimeZonePrivate::daylightTimeOffset(qint64 atMSecsSinceEpoch) const -{ - return data(atMSecsSinceEpoch).daylightTimeOffset; -} - -bool QWinTimeZonePrivate::hasDaylightTime() const -{ - return hasTransitions(); -} - -bool QWinTimeZonePrivate::isDaylightTime(qint64 atMSecsSinceEpoch) const -{ - return (data(atMSecsSinceEpoch).daylightTimeOffset != 0); -} - -QTimeZonePrivate::Data QWinTimeZonePrivate::data(qint64 forMSecsSinceEpoch) const -{ - int year = msecsToDate(forMSecsSinceEpoch).year(); - for (int ruleIndex = ruleIndexForYear(m_tranRules, year); - ruleIndex >= 0; --ruleIndex) { - const QWinTransitionRule &rule = m_tranRules.at(ruleIndex); - // Does this rule's period include any transition at all ? - if (rule.standardTimeRule.wMonth > 0 || rule.daylightTimeRule.wMonth > 0) { - const int endYear = qMax(rule.startYear, year - 1); - while (year >= endYear) { - const int newYearOffset = (year <= rule.startYear && ruleIndex > 0) - ? yearEndOffset(m_tranRules.at(ruleIndex - 1), year - 1) - : yearEndOffset(rule, year - 1); - const TransitionTimePair pair(rule, year, newYearOffset); - bool isDst = false; - if (pair.std != invalidMSecs() && pair.std <= forMSecsSinceEpoch) { - isDst = pair.std < pair.dst && pair.dst <= forMSecsSinceEpoch; - } else if (pair.dst != invalidMSecs() && pair.dst <= forMSecsSinceEpoch) { - isDst = true; - } else { - --year; // Try an earlier year for this rule (once). - continue; - } - return ruleToData(rule, forMSecsSinceEpoch, - isDst ? QTimeZone::DaylightTime : QTimeZone::StandardTime, - pair.fakesDst()); - } - // Fell off start of rule, try previous rule. - } else { - // No transition, no DST, use the year's standard time. - return ruleToData(rule, forMSecsSinceEpoch, QTimeZone::StandardTime); - } - if (year >= rule.startYear) - year = rule.startYear - 1; // Seek last transition in new rule. - } - // We don't have relevant data :-( - return invalidData(); -} - -bool QWinTimeZonePrivate::hasTransitions() const -{ - for (const QWinTransitionRule &rule : m_tranRules) { - if (rule.standardTimeRule.wMonth > 0 && rule.daylightTimeRule.wMonth > 0) - return true; - } - return false; -} - -QTimeZonePrivate::Data QWinTimeZonePrivate::nextTransition(qint64 afterMSecsSinceEpoch) const -{ - int year = msecsToDate(afterMSecsSinceEpoch).year(); - for (int ruleIndex = ruleIndexForYear(m_tranRules, year); - ruleIndex < m_tranRules.count(); ++ruleIndex) { - const QWinTransitionRule &rule = m_tranRules.at(ruleIndex); - // Does this rule's period include any transition at all ? - if (rule.standardTimeRule.wMonth > 0 || rule.daylightTimeRule.wMonth > 0) { - if (year < rule.startYear) - year = rule.startYear; // Seek first transition in this rule. - const int endYear = ruleIndex + 1 < m_tranRules.count() - ? qMin(m_tranRules.at(ruleIndex + 1).startYear, year + 2) : (year + 2); - int newYearOffset = (year <= rule.startYear && ruleIndex > 0) - ? yearEndOffset(m_tranRules.at(ruleIndex - 1), year - 1) - : yearEndOffset(rule, year - 1); - while (year < endYear) { - const TransitionTimePair pair(rule, year, newYearOffset); - bool isDst = false; - Q_ASSERT(invalidMSecs() <= afterMSecsSinceEpoch); // invalid is min qint64 - if (pair.std > afterMSecsSinceEpoch) { - isDst = pair.std > pair.dst && pair.dst > afterMSecsSinceEpoch; - } else if (pair.dst > afterMSecsSinceEpoch) { - isDst = true; - } else { - newYearOffset = rule.standardTimeBias; - if (pair.dst > pair.std) - newYearOffset += rule.daylightTimeBias; - ++year; // Try a later year for this rule (once). - continue; - } - - if (isDst) - return ruleToData(rule, pair.dst, QTimeZone::DaylightTime, pair.fakesDst()); - return ruleToData(rule, pair.std, QTimeZone::StandardTime, pair.fakesDst()); - } - // Fell off end of rule, try next rule. - } // else: no transition during rule's period - } - // Apparently no transition after the given time: - return invalidData(); -} - -QTimeZonePrivate::Data QWinTimeZonePrivate::previousTransition(qint64 beforeMSecsSinceEpoch) const -{ - const qint64 startOfTime = invalidMSecs() + 1; - if (beforeMSecsSinceEpoch <= startOfTime) - return invalidData(); - - int year = msecsToDate(beforeMSecsSinceEpoch).year(); - for (int ruleIndex = ruleIndexForYear(m_tranRules, year); - ruleIndex >= 0; --ruleIndex) { - const QWinTransitionRule &rule = m_tranRules.at(ruleIndex); - // Does this rule's period include any transition at all ? - if (rule.standardTimeRule.wMonth > 0 || rule.daylightTimeRule.wMonth > 0) { - const int endYear = qMax(rule.startYear, year - 1); - while (year >= endYear) { - const int newYearOffset = (year <= rule.startYear && ruleIndex > 0) - ? yearEndOffset(m_tranRules.at(ruleIndex - 1), year - 1) - : yearEndOffset(rule, year - 1); - const TransitionTimePair pair(rule, year, newYearOffset); - bool isDst = false; - if (pair.std != invalidMSecs() && pair.std < beforeMSecsSinceEpoch) { - isDst = pair.std < pair.dst && pair.dst < beforeMSecsSinceEpoch; - } else if (pair.dst != invalidMSecs() && pair.dst < beforeMSecsSinceEpoch) { - isDst = true; - } else { - --year; // Try an earlier year for this rule (once). - continue; - } - if (isDst) - return ruleToData(rule, pair.dst, QTimeZone::DaylightTime, pair.fakesDst()); - return ruleToData(rule, pair.std, QTimeZone::StandardTime, pair.fakesDst()); - } - // Fell off start of rule, try previous rule. - } else if (ruleIndex == 0) { - // Treat a no-transition first rule as a transition at the start of - // time, so that a scan through all rules *does* see it as the first - // rule: - return ruleToData(rule, startOfTime, QTimeZone::StandardTime, false); - } // else: no transition during rule's period - if (year >= rule.startYear) - year = rule.startYear - 1; // Seek last transition in new rule - } - // Apparently no transition before the given time: - return invalidData(); -} - -QByteArray QWinTimeZonePrivate::systemTimeZoneId() const -{ - const QLocale::Country country = userCountry(); - const QByteArray windowsId = windowsSystemZoneId(); - QByteArray ianaId; - // If we have a real country, then try get a specific match for that country - if (country != QLocale::AnyCountry) - ianaId = windowsIdToDefaultIanaId(windowsId, country); - // If we don't have a real country, or there wasn't a specific match, try the global default - if (ianaId.isEmpty()) { - ianaId = windowsIdToDefaultIanaId(windowsId); - // If no global default then probably an unknown Windows ID so return UTC - if (ianaId.isEmpty()) - return utcQByteArray(); - } - return ianaId; -} - -QList<QByteArray> QWinTimeZonePrivate::availableTimeZoneIds() const -{ - QList<QByteArray> result; - const auto winIds = availableWindowsIds(); - for (const QByteArray &winId : winIds) - result += windowsIdToIanaIds(winId); - std::sort(result.begin(), result.end()); - result.erase(std::unique(result.begin(), result.end()), result.end()); - return result; -} - -QTimeZonePrivate::Data QWinTimeZonePrivate::ruleToData(const QWinTransitionRule &rule, - qint64 atMSecsSinceEpoch, - QTimeZone::TimeType type, - bool fakeDst) const -{ - Data tran = invalidData(); - tran.atMSecsSinceEpoch = atMSecsSinceEpoch; - tran.standardTimeOffset = rule.standardTimeBias * -60; - if (fakeDst) { - tran.daylightTimeOffset = 0; - tran.abbreviation = m_standardName; - // Rule may claim we're in DST when it's actually a standard time change: - if (type == QTimeZone::DaylightTime) - tran.standardTimeOffset += rule.daylightTimeBias * -60; - } else if (type == QTimeZone::DaylightTime) { - tran.daylightTimeOffset = rule.daylightTimeBias * -60; - tran.abbreviation = m_daylightName; - } else { - tran.daylightTimeOffset = 0; - tran.abbreviation = m_standardName; - } - tran.offsetFromUtc = tran.standardTimeOffset + tran.daylightTimeOffset; - return tran; -} - -QT_END_NAMESPACE diff --git a/src/corelib/tools/tools.pri b/src/corelib/tools/tools.pri index 5dcb6c9ee0..52eddd5d6b 100644 --- a/src/corelib/tools/tools.pri +++ b/src/corelib/tools/tools.pri @@ -20,8 +20,6 @@ HEADERS += \ tools/qcontainerfwd.h \ tools/qcontainertools_impl.h \ tools/qcryptographichash.h \ - tools/qdatetime.h \ - tools/qdatetime_p.h \ tools/qdoublescanprint_p.h \ tools/qeasingcurve.h \ tools/qfreelist_p.h \ @@ -86,7 +84,6 @@ SOURCES += \ tools/qbytearraymatcher.cpp \ tools/qcollator.cpp \ tools/qcryptographichash.cpp \ - tools/qdatetime.cpp \ tools/qeasingcurve.cpp \ tools/qfreelist.cpp \ tools/qhash.cpp \ @@ -154,33 +151,6 @@ qtConfig(icu) { SOURCES += tools/qcollator_posix.cpp } -qtConfig(timezone) { - HEADERS += \ - tools/qtimezone.h \ - tools/qtimezoneprivate_p.h \ - tools/qtimezoneprivate_data_p.h - SOURCES += \ - tools/qtimezone.cpp \ - tools/qtimezoneprivate.cpp - !nacl:darwin: { - SOURCES += tools/qtimezoneprivate_mac.mm - } else: android:!android-embedded: { - SOURCES += tools/qtimezoneprivate_android.cpp - } else: unix: { - SOURCES += tools/qtimezoneprivate_tz.cpp - qtConfig(icu): SOURCES += tools/qtimezoneprivate_icu.cpp - } else: qtConfig(icu): { - SOURCES += tools/qtimezoneprivate_icu.cpp - } else: win32: { - SOURCES += tools/qtimezoneprivate_win.cpp - } -} - -qtConfig(datetimeparser) { - HEADERS += tools/qdatetimeparser_p.h - SOURCES += tools/qdatetimeparser.cpp -} - qtConfig(regularexpression) { QMAKE_USE_PRIVATE += pcre2 |