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Diffstat (limited to 'src/corelib/tools/qtimezoneprivate_mac.mm')
-rw-r--r-- | src/corelib/tools/qtimezoneprivate_mac.mm | 333 |
1 files changed, 0 insertions, 333 deletions
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 |