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Diffstat (limited to 'src/corelib/tools/qdatetimeparser_p.h')
| -rw-r--r-- | src/corelib/tools/qdatetimeparser_p.h | 272 |
1 files changed, 272 insertions, 0 deletions
diff --git a/src/corelib/tools/qdatetimeparser_p.h b/src/corelib/tools/qdatetimeparser_p.h new file mode 100644 index 0000000000..2b4f59a23a --- /dev/null +++ b/src/corelib/tools/qdatetimeparser_p.h @@ -0,0 +1,272 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** 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 Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.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 "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" + + +#define QDATETIMEEDIT_TIME_MIN QTime(0, 0, 0, 0) +#define QDATETIMEEDIT_TIME_MAX QTime(23, 59, 59, 999) +#define QDATETIMEEDIT_DATE_MIN QDate(100, 1, 1) +#define QDATETIMEEDIT_COMPAT_DATE_MIN QDate(1752, 9, 14) +#define QDATETIMEEDIT_DATE_MAX QDate(7999, 12, 31) +#define QDATETIMEEDIT_DATETIME_MIN QDateTime(QDATETIMEEDIT_DATE_MIN, QDATETIMEEDIT_TIME_MIN) +#define QDATETIMEEDIT_COMPAT_DATETIME_MIN QDateTime(QDATETIMEEDIT_COMPAT_DATE_MIN, QDATETIMEEDIT_TIME_MIN) +#define QDATETIMEEDIT_DATETIME_MAX QDateTime(QDATETIMEEDIT_DATE_MAX, QDATETIMEEDIT_TIME_MAX) +#define QDATETIMEEDIT_DATE_INITIAL QDate(2000, 1, 1) + +QT_BEGIN_NAMESPACE + +#ifndef QT_BOOTSTRAPPED + +class Q_CORE_EXPORT QDateTimeParser +{ +public: + enum Context { + FromString, + DateTimeEdit + }; + QDateTimeParser(QVariant::Type t, Context ctx) + : currentSectionIndex(-1), display(0), 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 = FirstSection; + last.pos = -1; + last.count = -1; + last.zeroesAdded = 0; + none.type = NoSection; + none.pos = -1; + none.count = -1; + none.zeroesAdded = 0; + } + virtual ~QDateTimeParser() {} + enum { + Neither = -1, + AM = 0, + PM = 1, + PossibleAM = 2, + PossiblePM = 3, + PossibleBoth = 4 + }; + + enum Section { + NoSection = 0x00000, + AmPmSection = 0x00001, + MSecSection = 0x00002, + SecondSection = 0x00004, + MinuteSection = 0x00008, + Hour12Section = 0x00010, + Hour24Section = 0x00020, + TimeSectionMask = (AmPmSection|MSecSection|SecondSection|MinuteSection|Hour12Section|Hour24Section), + Internal = 0x10000, + DaySection = 0x00100, + MonthSection = 0x00200, + YearSection = 0x00400, + YearSection2Digits = 0x00800, + DayOfWeekSectionShort = 0x01000, + DayOfWeekSectionLong = 0x20000, + DateSectionMask = (DaySection|MonthSection|YearSection|YearSection2Digits|DayOfWeekSectionShort|DayOfWeekSectionLong), + FirstSection = 0x02000|Internal, + LastSection = 0x04000|Internal, + CalendarPopupSection = 0x08000|Internal, + + NoSectionIndex = -1, + FirstSectionIndex = -2, + LastSectionIndex = -3, + CalendarPopupIndex = -4 + }; // duplicated from qdatetimeedit.h + Q_DECLARE_FLAGS(Sections, Section) + + struct SectionNode { + Section type; + mutable int pos; + int count; + int zeroesAdded; + }; + + enum State { // duplicated from QValidator + Invalid, + Intermediate, + Acceptable + }; + + struct StateNode { + StateNode() : state(Invalid), conflicts(false) {} + QString input; + State state; + bool conflicts; + QDateTime value; + }; + + enum AmPm { + AmText, + PmText + }; + + enum Case { + UpperCase, + LowerCase + }; + +#ifndef QT_NO_DATESTRING + StateNode parse(QString &input, int &cursorPosition, const QDateTime ¤tValue, bool fixup) const; +#endif + int sectionMaxSize(int index) const; + int sectionSize(int index) const; + int sectionMaxSize(Section s, int count) 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; + QString sectionText(const QString &text, int sectionIndex, int index) const; + int getDigit(const QDateTime &dt, int index) const; + bool setDigit(QDateTime &t, int index, int newval) const; + int parseSection(const QDateTime ¤tValue, int sectionIndex, QString &txt, int &cursorPosition, + int index, QDateTimeParser::State &state, int *used = 0) const; + int absoluteMax(int index, const QDateTime &value = QDateTime()) const; + int absoluteMin(int index) const; + bool parseFormat(const QString &format); +#ifndef QT_NO_DATESTRING + bool fromString(const QString &text, QDate *date, QTime *time) const; +#endif + +#ifndef QT_NO_TEXTDATE + int findMonth(const QString &str1, int monthstart, int sectionIndex, + QString *monthName = 0, int *used = 0) const; + int findDay(const QString &str1, int intDaystart, int sectionIndex, + QString *dayName = 0, int *used = 0) const; +#endif + int findAmPm(QString &str1, int index, int *used = 0) const; + int maxChange(int s) const; + bool potentialValue(const QString &str, int min, int max, int index, + const QDateTime ¤tValue, int insert) const; + bool skipToNextSection(int section, const QDateTime ¤t, const QString §ionText) const; + QString sectionName(int s) const; + QString stateName(int s) const; + + QString sectionFormat(int index) const; + QString sectionFormat(Section s, int count) const; + + enum FieldInfoFlag { + Numeric = 0x01, + FixedWidth = 0x02, + AllowPartial = 0x04, + Fraction = 0x08 + }; + Q_DECLARE_FLAGS(FieldInfo, FieldInfoFlag) + + FieldInfo fieldInfo(int index) const; + + virtual QDateTime getMinimum() const; + virtual QDateTime getMaximum() const; + virtual int cursorPosition() const { return -1; } + virtual QString displayText() const { return text; } + virtual QString getAmPmText(AmPm ap, Case cs) const; + virtual QLocale locale() const { return defaultLocale; } + + mutable int currentSectionIndex; + Sections display; + /* + This stores the 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 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_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) + +#endif // QT_BOOTSTRAPPED + +QT_END_NAMESPACE + +#endif // QDATETIME_P_H |