diff options
Diffstat (limited to 'src/widgets/widgets/qdatetimeedit.cpp')
| -rw-r--r-- | src/widgets/widgets/qdatetimeedit.cpp | 282 |
1 files changed, 168 insertions, 114 deletions
diff --git a/src/widgets/widgets/qdatetimeedit.cpp b/src/widgets/widgets/qdatetimeedit.cpp index f348bbed0e..e4abb89636 100644 --- a/src/widgets/widgets/qdatetimeedit.cpp +++ b/src/widgets/widgets/qdatetimeedit.cpp @@ -53,6 +53,9 @@ #include <qlayout.h> #include <qset.h> #include <qstyle.h> +#if QT_CONFIG(timezone) +#include <QTimeZone> +#endif #include <algorithm> @@ -90,12 +93,10 @@ QT_BEGIN_NAMESPACE today's date, and restricted the valid date range to today plus or minus 365 days. We've set the order to month, day, year. - The minimum value for QDateTimeEdit is 14 September 1752. You can - change this by calling setMinimumDate(), taking into account that - the minimum value for QDate is 2 January 4713BC. - - Other useful functions are setMaximumDate(), setMinimumTime() - and setMaximumTime(). + The range of valid values for a QDateTimeEdit is controlled by the properties + \l minimumDateTime, \l maximumDateTime, and their respective date and time + components. By default, any date-time from the start of 100 CE to the end of + 9999 CE is valid. \section1 Using a Pop-up Calendar Widget @@ -218,15 +219,21 @@ QDateTimeEdit::~QDateTimeEdit() /*! \property QDateTimeEdit::dateTime - \brief the QDateTime that is set in the QDateTimeEdit + \brief The QDateTime that is set in the QDateTimeEdit. - When setting this property the timespec of the QDateTimeEdit remains the same - and the timespec of the new QDateTime is ignored. + When setting this property, the new QDateTime is converted to the timespec of + the QDateTimeEdit, which thus remains unchanged. - By default, this property contains a date that refers to January 1, - 2000 and a time of 00:00:00 and 0 milliseconds. + By default, this property is set to the start of 2000 CE. It can only be set + to a valid QDateTime value. If any operation causes this property to have an + invalid date-time as value, it is reset to the value of the \l minimumDateTime + property. - \sa date, time + If the QDateTimeEdit has no date fields, setting this property sets the + widget's date-range to start and end on the date of the new value of this + property. + + \sa date, time, minimumDateTime, maximumDateTime */ QDateTime QDateTimeEdit::dateTime() const @@ -239,17 +246,20 @@ void QDateTimeEdit::setDateTime(const QDateTime &datetime) { Q_D(QDateTimeEdit); if (datetime.isValid()) { + QDateTime when = d->convertTimeSpec(datetime); + Q_ASSERT(when.timeSpec() == d->spec); + d->clearCache(); - const QDate date = datetime.date(); + const QDate date = when.date(); if (!(d->sections & DateSections_Mask)) setDateRange(date, date); - d->setValue(QDateTime(date, datetime.time(), d->spec), EmitIfChanged); + d->setValue(when, EmitIfChanged); } } /*! \property QDateTimeEdit::date - \brief the QDate that is set in the widget + \brief The QDate that is set in the widget. By default, this property contains a date that refers to January 1, 2000. @@ -286,7 +296,7 @@ void QDateTimeEdit::setDate(const QDate &date) /*! \property QDateTimeEdit::time - \brief the QTime that is set in the widget + \brief The QTime that is set in the widget. By default, this property contains a time of 00:00:00 and 0 milliseconds. @@ -329,25 +339,23 @@ void QDateTimeEdit::setCalendar(QCalendar calendar) } /*! - \property QDateTimeEdit::minimumDateTime \since 4.4 + \property QDateTimeEdit::minimumDateTime - \brief the minimum datetime of the date time edit - - When setting this property the \l maximumDateTime() is adjusted if - necessary to ensure that the range remains valid. If the datetime is - not a valid QDateTime object, this function does nothing. + \brief The minimum datetime of the date time edit. - The default minimumDateTime can be restored with - clearMinimumDateTime() + Changing this property implicitly updates the \l minimumDate and \l + minimumTime properties to the date and time parts of this property, + respectively. When setting this property, the \l maximumDateTime is adjusted, + if necessary, to ensure that the range remains valid. Otherwise, changing this + property preserves the \l minimumDateTime property. - By default, this property contains a date that refers to September 14, - 1752 and a time of 00:00:00 and 0 milliseconds. + This property can only be set to a valid QDateTime value. The earliest + date-time that setMinimumDateTime() accepts is the start of 100 CE. The + property's default is the start of September 14, 1752 CE. This default can be + restored with clearMinimumDateTime(). - \sa maximumDateTime(), minimumTime(), maximumTime(), minimumDate(), - maximumDate(), setDateTimeRange(), setDateRange(), setTimeRange(), - clearMaximumDateTime(), clearMinimumDate(), - clearMaximumDate(), clearMinimumTime(), clearMaximumTime() + \sa maximumDateTime, minimumTime, minimumDate, setDateTimeRange(), QDateTime::isValid() */ QDateTime QDateTimeEdit::minimumDateTime() const @@ -372,25 +380,23 @@ void QDateTimeEdit::setMinimumDateTime(const QDateTime &dt) } /*! - \property QDateTimeEdit::maximumDateTime \since 4.4 + \property QDateTimeEdit::maximumDateTime - \brief the maximum datetime of the date time edit + \brief The maximum datetime of the date time edit. - When setting this property the \l minimumDateTime() is adjusted if - necessary to ensure that the range remains valid. If the datetime is - not a valid QDateTime object, this function does nothing. + Changing this property implicitly updates the \l maximumDate and \l + maximumTime properties to the date and time parts of this property, + respectively. When setting this property, the \l minimumDateTime is adjusted, + if necessary, to ensure that the range remains valid. Otherwise, changing this + property preserves the \l minimumDateTime property. - The default maximumDateTime can be restored with + This property can only be set to a valid QDateTime value. The latest + date-time that setMaximumDateTime() accepts is the end of 9999 CE. This is the + default for this property. This default can be restored with clearMaximumDateTime(). - By default, this property contains a date that refers to 31 December, - 9999 and a time of 23:59:59 and 999 milliseconds. - - \sa minimumDateTime(), minimumTime(), maximumTime(), minimumDate(), - maximumDate(), setDateTimeRange(), setDateRange(), setTimeRange(), - clearMinimumDateTime(), clearMinimumDate(), - clearMaximumDate(), clearMinimumTime(), clearMaximumTime() + \sa minimumDateTime, maximumTime, maximumDate(), setDateTimeRange(), QDateTime::isValid() */ QDateTime QDateTimeEdit::maximumDateTime() const @@ -414,11 +420,12 @@ void QDateTimeEdit::setMaximumDateTime(const QDateTime &dt) } } - /*! - Convenience function to set minimum and maximum date time with one - function call. \since 4.4 + \brief Set the range of allowed date-times for the date time edit. + + This convenience function sets the \l minimumDateTime and \l maximumDateTime + properties. \snippet code/src_gui_widgets_qdatetimeedit.cpp 1 @@ -426,38 +433,40 @@ void QDateTimeEdit::setMaximumDateTime(const QDateTime &dt) \snippet code/src_gui_widgets_qdatetimeedit.cpp 2 - If either \a min or \a max are not valid, this function does - nothing. + If either \a min or \a max is invalid, this function does nothing. If \a max + is less than \a min, \a min is used also as \a max. - \sa setMinimumDate(), maximumDate(), setMaximumDate(), - clearMinimumDate(), setMinimumTime(), maximumTime(), - setMaximumTime(), clearMinimumTime(), QDateTime::isValid() + \sa minimumDateTime, maximumDateTime, setDateRange(), setTimeRange(), QDateTime::isValid() */ void QDateTimeEdit::setDateTimeRange(const QDateTime &min, const QDateTime &max) { Q_D(QDateTimeEdit); + // FIXME: does none of the range checks applied to setMin/setMax methods ! const QDateTime minimum = min.toTimeSpec(d->spec); - QDateTime maximum = max.toTimeSpec(d->spec); - if (min > max) - maximum = minimum; + const QDateTime maximum = (min > max ? minimum : max.toTimeSpec(d->spec)); d->setRange(minimum, maximum); } /*! \property QDateTimeEdit::minimumDate - \brief the minimum date of the date time edit + \brief The minimum date of the date time edit. - When setting this property the \l maximumDate is adjusted if - necessary, to ensure that the range remains valid. If the date is - not a valid QDate object, this function does nothing. + Changing this property updates the date of the \l minimumDateTime property + while preserving the \l minimumTime property. When setting this property, + the \l maximumDate is adjusted, if necessary, to ensure that the range remains + valid. When this happens, the \l maximumTime property is also adjusted if it + is less than the \l minimumTime property. Otherwise, changes to this property + preserve the \l maximumDateTime property. - By default, this property contains a date that refers to September 14, 1752. - The minimum date must be at least the first day in year 100, otherwise - setMinimumDate() has no effect. + This property can only be set to a valid QDate object describing a date on + which the current \l minimumTime property makes a valid QDateTime object. The + earliest date that setMinimumDate() accepts is the start of 100 CE. The + default for this property is September 14, 1752 CE. This default can be + restored with clearMinimumDateTime(). - \sa minimumTime(), maximumTime(), setDateRange() + \sa maximumDate, minimumTime, minimumDateTime, setDateRange(), QDate::isValid() */ QDate QDateTimeEdit::minimumDate() const @@ -482,15 +491,22 @@ void QDateTimeEdit::clearMinimumDate() /*! \property QDateTimeEdit::maximumDate - \brief the maximum date of the date time edit + \brief The maximum date of the date time edit. - When setting this property the \l minimumDate is adjusted if - necessary to ensure that the range remains valid. If the date is - not a valid QDate object, this function does nothing. + Changing this property updates the date of the \l maximumDateTime property + while preserving the \l maximumTime property. When setting this property, the + \l minimumDate is adjusted, if necessary, to ensure that the range remains + valid. When this happens, the \l minimumTime property is also adjusted if it + is greater than the \l maximumTime property. Otherwise, changes to this + property preserve the \l minimumDateTime property. - By default, this property contains a date that refers to December 31, 9999. + This property can only be set to a valid QDate object describing a date on + which the current \l maximumTime property makes a valid QDateTime object. The + latest date that setMaximumDate() accepts is the end of 9999 CE. This is the + default for this property. This default can be restored with + clearMaximumDateTime(). - \sa minimumDate, minimumTime, maximumTime, setDateRange() + \sa minimumDate, maximumTime, maximumDateTime, setDateRange(), QDate::isValid() */ QDate QDateTimeEdit::maximumDate() const @@ -502,9 +518,8 @@ QDate QDateTimeEdit::maximumDate() const void QDateTimeEdit::setMaximumDate(const QDate &max) { Q_D(QDateTimeEdit); - if (max.isValid()) { + if (max.isValid()) setMaximumDateTime(QDateTime(max, d->maximum.toTime(), d->spec)); - } } void QDateTimeEdit::clearMaximumDate() @@ -515,15 +530,20 @@ void QDateTimeEdit::clearMaximumDate() /*! \property QDateTimeEdit::minimumTime - \brief the minimum time of the date time edit + \brief The minimum time of the date time edit. - When setting this property the \l maximumTime is adjusted if - necessary, to ensure that the range remains valid. If the time is - not a valid QTime object, this function does nothing. + Changing this property updates the time of the \l minimumDateTime property + while preserving the \l minimumDate and \l maximumDate properties. If those + date properties coincide, when setting this property, the \l maximumTime + property is adjusted, if necessary, to ensure that the range remains + valid. Otherwise, changing this property preserves the \l maximumDateTime + property. - By default, this property contains a time of 00:00:00 and 0 milliseconds. + This property can be set to any valid QTime value. By default, this property + contains a time of 00:00:00 and 0 milliseconds. This default can be restored + with clearMinimumTime(). - \sa maximumTime, minimumDate, maximumDate, setTimeRange() + \sa maximumTime, minimumDate, minimumDateTime, setTimeRange(), QTime::isValid() */ QTime QDateTimeEdit::minimumTime() const @@ -549,15 +569,20 @@ void QDateTimeEdit::clearMinimumTime() /*! \property QDateTimeEdit::maximumTime - \brief the maximum time of the date time edit + \brief The maximum time of the date time edit. - When setting this property, the \l minimumTime is adjusted if - necessary to ensure that the range remains valid. If the time is - not a valid QTime object, this function does nothing. + Changing this property updates the time of the \l maximumDateTime property + while preserving the \l minimumDate and \l maximumDate properties. If those + date properties coincide, when setting this property, the \l minimumTime + property is adjusted, if necessary, to ensure that the range remains + valid. Otherwise, changing this property preserves the \l minimumDateTime + property. - By default, this property contains a time of 23:59:59 and 999 milliseconds. + This property can be set to any valid QTime value. By default, this property + contains a time of 23:59:59 and 999 milliseconds. This default can be restored + with clearMaximumTime(). - \sa minimumTime, minimumDate, maximumDate, setTimeRange() + \sa minimumTime, maximumDate, maximumDateTime, setTimeRange(), QTime::isValid() */ QTime QDateTimeEdit::maximumTime() const { @@ -580,8 +605,10 @@ void QDateTimeEdit::clearMaximumTime() } /*! - Convenience function to set minimum and maximum date with one - function call. + \brief Set the range of allowed dates for the date time edit. + + This convenience function sets the \l minimumDate and \l maximumDate + properties. \snippet code/src_gui_widgets_qdatetimeedit.cpp 3 @@ -589,12 +616,14 @@ void QDateTimeEdit::clearMaximumTime() \snippet code/src_gui_widgets_qdatetimeedit.cpp 4 - If either \a min or \a max are not valid, this function does - nothing. + If either \a min or \a max is invalid, this function does nothing. This + function preserves the \l minimumTime property. If \a max is less than \a min, + the new maximumDateTime property shall be the new minimumDateTime property. If + \a max is equal to \a min and the \l maximumTime property was less then the \l + minimumTime property, the \l maximumTime property is set to the \l minimumTime + property. Otherwise, this preserves the \l maximumTime property. - \sa setMinimumDate(), maximumDate(), setMaximumDate(), - clearMinimumDate(), setMinimumTime(), maximumTime(), - setMaximumTime(), clearMinimumTime(), QDate::isValid() + \sa minimumDate, maximumDate, setDateTimeRange(), QDate::isValid() */ void QDateTimeEdit::setDateRange(const QDate &min, const QDate &max) @@ -607,8 +636,16 @@ void QDateTimeEdit::setDateRange(const QDate &min, const QDate &max) } /*! - Convenience function to set minimum and maximum time with one - function call. + \brief Set the range of allowed times for the date time edit. + + This convenience function sets the \l minimumTime and \l maximumTime + properties. + + Note that these only constrain the date time edit's value on, + respectively, the \l minimumDate and \l maximumDate. When these date + properties do not coincide, times after \a max are allowed on dates + before \l maximumDate and times before \a min are allowed on dates + after \l minimumDate. \snippet code/src_gui_widgets_qdatetimeedit.cpp 5 @@ -616,12 +653,11 @@ void QDateTimeEdit::setDateRange(const QDate &min, const QDate &max) \snippet code/src_gui_widgets_qdatetimeedit.cpp 6 - If either \a min or \a max are not valid, this function does - nothing. + If either \a min or \a max is invalid, this function does nothing. This + function preserves the \l minimumDate and \l maximumDate properties. If those + properties coincide and \a max is less than \a min, \a min is used as \a max. - \sa setMinimumDate(), maximumDate(), setMaximumDate(), - clearMinimumDate(), setMinimumTime(), maximumTime(), - setMaximumTime(), clearMinimumTime(), QTime::isValid() + \sa minimumTime, maximumTime, setDateTimeRange(), QTime::isValid() */ void QDateTimeEdit::setTimeRange(const QTime &min, const QTime &max) @@ -636,7 +672,7 @@ void QDateTimeEdit::setTimeRange(const QTime &min, const QTime &max) /*! \property QDateTimeEdit::displayedSections - \brief the currently displayed fields of the date time edit + \brief The currently displayed fields of the date time edit. Returns a bit set of the displayed sections for this format. \a setDisplayFormat(), displayFormat() @@ -651,7 +687,7 @@ QDateTimeEdit::Sections QDateTimeEdit::displayedSections() const /*! \property QDateTimeEdit::currentSection - \brief the current section of the spinbox + \brief The current section of the spinbox. \a setCurrentSection() */ @@ -710,7 +746,7 @@ QDateTimeEdit::Section QDateTimeEdit::sectionAt(int index) const \property QDateTimeEdit::sectionCount - \brief the number of sections displayed. + \brief The number of sections displayed. If the format is 'yyyy/yy/yyyy', sectionCount returns 3 */ @@ -726,7 +762,7 @@ int QDateTimeEdit::sectionCount() const \property QDateTimeEdit::currentSectionIndex - \brief the current section index of the spinbox + \brief The current section index of the spinbox. If the format is 'yyyy/MM/dd', the displayText is '2001/05/21', and the cursorPosition is 5, currentSectionIndex returns 1. If the @@ -764,7 +800,7 @@ QCalendarWidget *QDateTimeEdit::calendarWidget() const { Q_D(const QDateTimeEdit); if (!d->calendarPopup || !(d->sections & QDateTimeParser::DateSectionMask)) - return 0; + return nullptr; if (!d->monthCalendar) { const_cast<QDateTimeEditPrivate*>(d)->initCalendarPopup(); } @@ -850,7 +886,7 @@ QString QDateTimeEdit::sectionText(Section section) const /*! \property QDateTimeEdit::displayFormat - \brief the format used to display the time/date of the date time edit + \brief The format used to display the time/date of the date time edit. This format is described in QDateTime::toString() and QDateTime::fromString() @@ -865,7 +901,7 @@ QString QDateTimeEdit::sectionText(Section section) const Note that if you specify a two digit year, it will be interpreted to be in the century in which the date time edit was initialized. - The default century is the 21 (2000-2099). + The default century is the 21st (2000-2099). If you specify an invalid format the format will not be set. @@ -922,7 +958,7 @@ void QDateTimeEdit::setDisplayFormat(const QString &format) /*! \property QDateTimeEdit::calendarPopup - \brief the current calendar pop-up show mode. + \brief The current calendar pop-up show mode. \since 4.2 The calendar pop-up will be shown upon clicking the arrow button. @@ -954,7 +990,7 @@ void QDateTimeEdit::setCalendarPopup(bool enable) /*! \property QDateTimeEdit::timeSpec - \brief the current timespec used by the date time edit. + \brief The current timespec used by the date time edit. \since 4.4 */ @@ -1221,7 +1257,7 @@ void QDateTimeEdit::focusInEvent(QFocusEvent *event) { Q_D(QDateTimeEdit); QAbstractSpinBox::focusInEvent(event); - QString *frm = 0; + QString *frm = nullptr; const int oldPos = d->edit->cursorPosition(); if (!d->formatExplicitlySet) { if (d->displayFormat == d->defaultTimeFormat) { @@ -1416,12 +1452,12 @@ QDateTimeEdit::StepEnabled QDateTimeEdit::stepEnabled() const { Q_D(const QDateTimeEdit); if (d->readOnly) - return StepEnabled(0); + return {}; if (d->specialValue()) { - return (d->minimum == d->maximum ? StepEnabled(0) : StepEnabled(StepUpEnabled)); + return (d->minimum == d->maximum ? StepEnabled{} : StepEnabled(StepUpEnabled)); } - QAbstractSpinBox::StepEnabled ret = 0; + QAbstractSpinBox::StepEnabled ret = { }; #ifdef QT_KEYPAD_NAVIGATION if (QApplicationPrivate::keypadNavigationEnabled() && !hasEditFocus()) { @@ -1456,7 +1492,7 @@ QDateTimeEdit::StepEnabled QDateTimeEdit::stepEnabled() const switch (d->sectionType(d->currentSectionIndex)) { case QDateTimeParser::NoSection: case QDateTimeParser::FirstSection: - case QDateTimeParser::LastSection: return 0; + case QDateTimeParser::LastSection: return { }; default: break; } if (d->wrapping) @@ -1659,17 +1695,16 @@ QDateTimeEditPrivate::QDateTimeEditPrivate() cacheGuard = false; fixday = true; type = QVariant::DateTime; - sections = 0; + sections = { }; cachedDay = -1; currentSectionIndex = FirstSectionIndex; first.pos = 0; - sections = 0; calendarPopup = false; minimum = QDATETIMEEDIT_COMPAT_DATE_MIN.startOfDay(); maximum = QDATETIMEEDIT_DATE_MAX.endOfDay(); arrowState = QStyle::State_None; - monthCalendar = 0; + monthCalendar = nullptr; readLocaleSettings(); #ifdef QT_KEYPAD_NAVIGATION @@ -1677,6 +1712,25 @@ QDateTimeEditPrivate::QDateTimeEditPrivate() #endif } +QDateTime QDateTimeEditPrivate::convertTimeSpec(const QDateTime &datetime) +{ + Q_ASSERT(value.toDateTime().timeSpec() == spec); + switch (spec) { + case Qt::UTC: + return datetime.toUTC(); + case Qt::LocalTime: + return datetime.toLocalTime(); + case Qt::OffsetFromUTC: + return datetime.toOffsetFromUtc(value.toDateTime().offsetFromUtc()); +#if QT_CONFIG(timezone) + case Qt::TimeZone: + return datetime.toTimeZone(value.toDateTime().timeZone()); +#endif + } + Q_UNREACHABLE(); +} + +// FIXME: architecturaly incompatible with OffsetFromUTC or TimeZone as spec (QTBUG-80417). void QDateTimeEditPrivate::updateTimeSpec() { minimum = minimum.toDateTime().toTimeSpec(spec); @@ -2256,7 +2310,7 @@ QDateTimeEdit::Section QDateTimeEditPrivate::convertToPublic(QDateTimeParser::Se QDateTimeEdit::Sections QDateTimeEditPrivate::convertSections(QDateTimeParser::Sections s) { - QDateTimeEdit::Sections ret = 0; + QDateTimeEdit::Sections ret; if (s & QDateTimeParser::MSecSection) ret |= QDateTimeEdit::MSecSection; if (s & QDateTimeParser::SecondSection) |