QTime
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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 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; #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 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); void start(); int restart(); int elapsed() const; 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() Q_DECL_NOEXCEPT_EXPR(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) Q_DECL_NOTHROW; QDateTime(QDateTime &&other) Q_DECL_NOTHROW; ~QDateTime(); #ifdef Q_COMPILER_RVALUE_REFS QDateTime &operator=(QDateTime &&other) Q_DECL_NOTHROW { swap(other); return *this; } #endif QDateTime &operator=(const QDateTime &other) Q_DECL_NOTHROW; void swap(QDateTime &other) Q_DECL_NOTHROW { 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_DEPRECATED void setUtcOffset(int seconds); QT_DEPRECATED 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() Q_DECL_NOTHROW; static qint64 currentSecsSinceEpoch() Q_DECL_NOTHROW; #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) Q_DECL_NOTHROW; Q_CORE_EXPORT uint qHash(const QTime &key, uint seed = 0) Q_DECL_NOTHROW; QT_END_NAMESPACE #endif // QDATETIME_H
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