FCL/sf/mw/qt: comparison src/gui/widgets/qdatetimeedit.cpp

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+:1918ee327afb
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include <math.h>
+#include <private/qdatetimeedit_p.h>
+#include <qabstractspinbox.h>
+#include <qapplication.h>
+#include <qdatetimeedit.h>
+#include <qdesktopwidget.h>
+#include <qdebug.h>
+#include <qevent.h>
+#include <qlineedit.h>
+#include <private/qlineedit_p.h>
+#include <qlocale.h>
+#include <qpainter.h>
+#include <qlayout.h>
+#include <qset.h>
+#include <qstyle.h>
+#ifndef QT_NO_DATETIMEEDIT
+//#define QDATETIMEEDIT_QDTEDEBUG
+#ifdef QDATETIMEEDIT_QDTEDEBUG
+#  define QDTEDEBUG qDebug() << QString::fromLatin1("%1:%2").arg(__FILE__).arg(__LINE__)
+#  define QDTEDEBUGN qDebug
+#else
+#  define QDTEDEBUG if (false) qDebug()
+#  define QDTEDEBUGN if (false) qDebug
+#endif
+QT_BEGIN_NAMESPACE
+// --- QDateTimeEdit ---
+/*!
+\class QDateTimeEdit
+\brief The QDateTimeEdit class provides a widget for editing dates and times.
+\ingroup basicwidgets
+QDateTimeEdit allows the user to edit dates by using the keyboard or
+the arrow keys to increase and decrease date and time values. The
+arrow keys can be used to move from section to section within the
+QDateTimeEdit box. Dates and times appear in accordance with the
+format set; see setDisplayFormat().
+\snippet doc/src/snippets/code/src_gui_widgets_qdatetimeedit.cpp 0
+Here we've created a new QDateTimeEdit object initialized with
+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,
+and 2 January 4713BC for QDate. You can change this by calling
+setMinimumDate(), setMaximumDate(),  setMinimumTime(),
+and setMaximumTime().
+\section1 Using a Pop-up Calendar Widget
+QDateTimeEdit can be configured to allow a QCalendarWidget to be used
+to select dates. This is enabled by setting the calendarPopup property.
+Additionally, you can supply a custom calendar widget for use as the
+calendar pop-up by calling the setCalendarWidget() function. The existing
+calendar widget can be retrieved with calendarWidget().
+\table 100%
+\row \o \inlineimage windowsxp-datetimeedit.png Screenshot of a Windows XP style date time editing widget
+\o A date time editing widget shown in the \l{Windows XP Style Widget Gallery}{Windows XP widget style}.
+\row \o \inlineimage macintosh-datetimeedit.png Screenshot of a Macintosh style date time editing widget
+\o A date time editing widget shown in the \l{Macintosh Style Widget Gallery}{Macintosh widget style}.
+\row \o \inlineimage plastique-datetimeedit.png Screenshot of a Plastique style date time editing widget
+\o A date time editing widget shown in the \l{Plastique Style Widget Gallery}{Plastique widget style}.
+\endtable
+\sa QDateEdit, QTimeEdit, QDate, QTime
+*/
+/*!
+\enum QDateTimeEdit::Section
+\value NoSection
+\value AmPmSection
+\value MSecSection
+\value SecondSection
+\value MinuteSection
+\value HourSection
+\value DaySection
+\value MonthSection
+\value YearSection
+\omitvalue DateSections_Mask
+\omitvalue TimeSections_Mask
+*/
+/*!
+\fn void QDateTimeEdit::dateTimeChanged(const QDateTime &datetime)
+This signal is emitted whenever the date or time is changed. The
+new date and time is passed in \a datetime.
+*/
+/*!
+\fn void QDateTimeEdit::timeChanged(const QTime &time)
+This signal is emitted whenever the time is changed. The new time
+is passed in \a time.
+*/
+/*!
+\fn void QDateTimeEdit::dateChanged(const QDate &date)
+This signal is emitted whenever the date is changed. The new date
+is passed in \a date.
+*/
+/*!
+Constructs an empty date time editor with a \a parent.
+*/
+QDateTimeEdit::QDateTimeEdit(QWidget *parent)
+: QAbstractSpinBox(*new QDateTimeEditPrivate, parent)
+{
+Q_D(QDateTimeEdit);
+d->init(QDateTime(QDATETIMEEDIT_DATE_INITIAL, QDATETIMEEDIT_TIME_MIN));
+}
+/*!
+Constructs an empty date time editor with a \a parent. The value
+is set to \a datetime.
+*/
+QDateTimeEdit::QDateTimeEdit(const QDateTime &datetime, QWidget *parent)
+: QAbstractSpinBox(*new QDateTimeEditPrivate, parent)
+{
+Q_D(QDateTimeEdit);
+d->init(datetime.isValid() ? datetime : QDateTime(QDATETIMEEDIT_DATE_INITIAL,
+QDATETIMEEDIT_TIME_MIN));
+}
+/*!
+\fn QDateTimeEdit::QDateTimeEdit(const QDate &date, QWidget *parent)
+Constructs an empty date time editor with a \a parent.
+The value is set to \a date.
+*/
+QDateTimeEdit::QDateTimeEdit(const QDate &date, QWidget *parent)
+: QAbstractSpinBox(*new QDateTimeEditPrivate, parent)
+{
+Q_D(QDateTimeEdit);
+d->init(date.isValid() ? date : QDATETIMEEDIT_DATE_INITIAL);
+}
+/*!
+\fn QDateTimeEdit::QDateTimeEdit(const QTime &time, QWidget *parent)
+Constructs an empty date time editor with a \a parent.
+The value is set to \a time.
+*/
+QDateTimeEdit::QDateTimeEdit(const QTime &time, QWidget *parent)
+: QAbstractSpinBox(*new QDateTimeEditPrivate, parent)
+{
+Q_D(QDateTimeEdit);
+d->init(time.isValid() ? time : QDATETIMEEDIT_TIME_MIN);
+}
+/*!
+\internal
+*/
+QDateTimeEdit::QDateTimeEdit(const QVariant &var, QVariant::Type parserType, QWidget *parent)
+: QAbstractSpinBox(*new QDateTimeEditPrivate, parent)
+{
+Q_D(QDateTimeEdit);
+d->parserType = parserType;
+d->init(var);
+}
+/*!
+\property QDateTimeEdit::dateTime
+\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.
+By default, this property contains a date that refers to January 1,
+2000 and a time of 00:00:00 and 0 milliseconds.
+\sa date, time
+*/
+QDateTime QDateTimeEdit::dateTime() const
+{
+Q_D(const QDateTimeEdit);
+return d->value.toDateTime();
+}
+void QDateTimeEdit::setDateTime(const QDateTime &datetime)
+{
+Q_D(QDateTimeEdit);
+if (datetime.isValid()) {
+d->clearCache();
+if (!(d->sections & DateSections_Mask))
+setDateRange(datetime.date(), datetime.date());
+d->setValue(QDateTime(datetime.date(), datetime.time(), d->spec), EmitIfChanged);
+}
+}
+/*!
+\property QDateTimeEdit::date
+\brief the QDate that is set in the QDateTimeEdit
+By default, this property contains a date that refers to January 1, 2000.
+\sa time, dateTime
+*/
+/*!
+Returns the date of the date time edit.
+*/
+QDate QDateTimeEdit::date() const
+{
+Q_D(const QDateTimeEdit);
+return d->value.toDate();
+}
+void QDateTimeEdit::setDate(const QDate &date)
+{
+Q_D(QDateTimeEdit);
+if (date.isValid()) {
+if (!(d->sections & DateSections_Mask))
+setDateRange(date, date);
+d->clearCache();
+d->setValue(QDateTime(date, d->value.toTime(), d->spec), EmitIfChanged);
+d->updateTimeSpec();
+}
+}
+/*!
+\property QDateTimeEdit::time
+\brief the QTime that is set in the QDateTimeEdit
+By default, this property contains a time of 00:00:00 and 0 milliseconds.
+\sa date, dateTime
+*/
+/*!
+Returns the time of the date time edit.
+*/
+QTime QDateTimeEdit::time() const
+{
+Q_D(const QDateTimeEdit);
+return d->value.toTime();
+}
+void QDateTimeEdit::setTime(const QTime &time)
+{
+Q_D(QDateTimeEdit);
+if (time.isValid()) {
+d->clearCache();
+d->setValue(QDateTime(d->value.toDate(), time, d->spec), EmitIfChanged);
+}
+}
+/*!
+\property QDateTimeEdit::minimumDateTime
+\since 4.4
+\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.
+The default minimumDateTime can be restored with
+clearMinimumDateTime()
+By default, this property contains a date that refers to September 14,
+1752 and a time of 00:00:00 and 0 milliseconds.
+\sa maximumDateTime(), minimumTime(), maximumTime(), minimumDate(),
+maximumDate(), setDateTimeRange(), setDateRange(), setTimeRange(),
+clearMaximumDateTime(), clearMinimumDate(),
+clearMaximumDate(), clearMinimumTime(), clearMaximumTime()
+*/
+QDateTime QDateTimeEdit::minimumDateTime() const
+{
+Q_D(const QDateTimeEdit);
+return d->minimum.toDateTime();
+}
+void QDateTimeEdit::clearMinimumDateTime()
+{
+setMinimumDateTime(QDateTime(QDATETIMEEDIT_COMPAT_DATE_MIN, QDATETIMEEDIT_TIME_MIN));
+}
+void QDateTimeEdit::setMinimumDateTime(const QDateTime &dt)
+{
+Q_D(QDateTimeEdit);
+if (dt.isValid() && dt.date() >= QDATETIMEEDIT_DATE_MIN) {
+const QDateTime m = dt.toTimeSpec(d->spec);
+const QDateTime max = d->maximum.toDateTime();
+d->setRange(m, (max > m ? max : m));
+}
+}
+/*!
+\property QDateTimeEdit::maximumDateTime
+\since 4.4
+\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.
+The default maximumDateTime can be restored with
+clearMaximumDateTime().
+By default, this property contains a date that refers to 31 December,
+7999 and a time of 23:59:59 and 999 milliseconds.
+\sa minimumDateTime(), minimumTime(), maximumTime(), minimumDate(),
+maximumDate(), setDateTimeRange(), setDateRange(), setTimeRange(),
+clearMinimumDateTime(), clearMinimumDate(),
+clearMaximumDate(), clearMinimumTime(), clearMaximumTime()
+*/
+QDateTime QDateTimeEdit::maximumDateTime() const
+{
+Q_D(const QDateTimeEdit);
+return d->maximum.toDateTime();
+}
+void QDateTimeEdit::clearMaximumDateTime()
+{
+setMaximumDateTime(QDATETIMEEDIT_DATETIME_MAX);
+}
+void QDateTimeEdit::setMaximumDateTime(const QDateTime &dt)
+{
+Q_D(QDateTimeEdit);
+if (dt.isValid() && dt.date() <= QDATETIMEEDIT_DATE_MAX) {
+const QDateTime m = dt.toTimeSpec(d->spec);
+const QDateTime min = d->minimum.toDateTime();
+d->setRange((min < m ? min : m), m);
+}
+}
+/*!
+Convenience function to set minimum and maximum date time with one
+function call.
+\since 4.4
+\snippet doc/src/snippets/code/src_gui_widgets_qdatetimeedit.cpp 1
+is analogous to:
+\snippet doc/src/snippets/code/src_gui_widgets_qdatetimeedit.cpp 2
+If either \a min or \a max are not valid, this function does
+nothing.
+\sa setMinimumDate(), maximumDate(), setMaximumDate(),
+clearMinimumDate(), setMinimumTime(), maximumTime(),
+setMaximumTime(), clearMinimumTime(), QDateTime::isValid()
+*/
+void QDateTimeEdit::setDateTimeRange(const QDateTime &min, const QDateTime &max)
+{
+Q_D(QDateTimeEdit);
+const QDateTime minimum = min.toTimeSpec(d->spec);
+QDateTime maximum = max.toTimeSpec(d->spec);
+if (min > max)
+maximum = minimum;
+d->setRange(minimum, maximum);
+}
+/*!
+\property QDateTimeEdit::minimumDate
+\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.
+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.
+\sa minimumTime(), maximumTime(), setDateRange()
+*/
+QDate QDateTimeEdit::minimumDate() const
+{
+Q_D(const QDateTimeEdit);
+return d->minimum.toDate();
+}
+void QDateTimeEdit::setMinimumDate(const QDate &min)
+{
+Q_D(QDateTimeEdit);
+if (min.isValid() && min >= QDATETIMEEDIT_DATE_MIN) {
+setMinimumDateTime(QDateTime(min, d->minimum.toTime(), d->spec));
+}
+}
+void QDateTimeEdit::clearMinimumDate()
+{
+setMinimumDate(QDATETIMEEDIT_COMPAT_DATE_MIN);
+}
+/*!
+\property QDateTimeEdit::maximumDate
+\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.
+By default, this property contains a date that refers to December 31, 7999.
+\sa minimumDate, minimumTime, maximumTime, setDateRange()
+*/
+QDate QDateTimeEdit::maximumDate() const
+{
+Q_D(const QDateTimeEdit);
+return d->maximum.toDate();
+}
+void QDateTimeEdit::setMaximumDate(const QDate &max)
+{
+Q_D(QDateTimeEdit);
+if (max.isValid()) {
+setMaximumDateTime(QDateTime(max, d->maximum.toTime(), d->spec));
+}
+}
+void QDateTimeEdit::clearMaximumDate()
+{
+setMaximumDate(QDATETIMEEDIT_DATE_MAX);
+}
+/*!
+\property QDateTimeEdit::minimumTime
+\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.
+By default, this property contains a time of 00:00:00 and 0 milliseconds.
+\sa maximumTime, minimumDate, maximumDate, setTimeRange()
+*/
+QTime QDateTimeEdit::minimumTime() const
+{
+Q_D(const QDateTimeEdit);
+return d->minimum.toTime();
+}
+void QDateTimeEdit::setMinimumTime(const QTime &min)
+{
+Q_D(QDateTimeEdit);
+if (min.isValid()) {
+const QDateTime m(d->minimum.toDate(), min, d->spec);
+setMinimumDateTime(m);
+}
+}
+void QDateTimeEdit::clearMinimumTime()
+{
+setMinimumTime(QDATETIMEEDIT_TIME_MIN);
+}
+/*!
+\property QDateTimeEdit::maximumTime
+\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.
+By default, this property contains a time of 23:59:59 and 999 milliseconds.
+\sa minimumTime, minimumDate, maximumDate, setTimeRange()
+*/
+QTime QDateTimeEdit::maximumTime() const
+{
+Q_D(const QDateTimeEdit);
+return d->maximum.toTime();
+}
+void QDateTimeEdit::setMaximumTime(const QTime &max)
+{
+Q_D(QDateTimeEdit);
+if (max.isValid()) {
+const QDateTime m(d->maximum.toDate(), max);
+setMaximumDateTime(m);
+}
+}
+void QDateTimeEdit::clearMaximumTime()
+{
+setMaximumTime(QDATETIMEEDIT_TIME_MAX);
+}
+/*!
+Convenience function to set minimum and maximum date with one
+function call.
+\snippet doc/src/snippets/code/src_gui_widgets_qdatetimeedit.cpp 3
+is analogous to:
+\snippet doc/src/snippets/code/src_gui_widgets_qdatetimeedit.cpp 4
+If either \a min or \a max are not valid, this function does
+nothing.
+\sa setMinimumDate(), maximumDate(), setMaximumDate(),
+clearMinimumDate(), setMinimumTime(), maximumTime(),
+setMaximumTime(), clearMinimumTime(), QDate::isValid()
+*/
+void QDateTimeEdit::setDateRange(const QDate &min, const QDate &max)
+{
+Q_D(QDateTimeEdit);
+if (min.isValid() && max.isValid()) {
+setDateTimeRange(QDateTime(min, d->minimum.toTime(), d->spec),
+QDateTime(max, d->maximum.toTime(), d->spec));
+}
+}
+/*!
+Convenience function to set minimum and maximum time with one
+function call.
+\snippet doc/src/snippets/code/src_gui_widgets_qdatetimeedit.cpp 5
+is analogous to:
+\snippet doc/src/snippets/code/src_gui_widgets_qdatetimeedit.cpp 6
+If either \a min or \a max are not valid, this function does
+nothing.
+\sa setMinimumDate(), maximumDate(), setMaximumDate(),
+clearMinimumDate(), setMinimumTime(), maximumTime(),
+setMaximumTime(), clearMinimumTime(), QTime::isValid()
+*/
+void QDateTimeEdit::setTimeRange(const QTime &min, const QTime &max)
+{
+Q_D(QDateTimeEdit);
+if (min.isValid() && max.isValid()) {
+setDateTimeRange(QDateTime(d->minimum.toDate(), min, d->spec),
+QDateTime(d->maximum.toDate(), max, d->spec));
+}
+}
+/*!
+\property QDateTimeEdit::displayedSections
+\brief the currently displayed fields of the date time edit
+Returns a bit set of the displayed sections for this format.
+\a setDisplayFormat(), displayFormat()
+*/
+QDateTimeEdit::Sections QDateTimeEdit::displayedSections() const
+{
+Q_D(const QDateTimeEdit);
+return d->sections;
+}
+/*!
+\property QDateTimeEdit::currentSection
+\brief the current section of the spinbox
+\a setCurrentSection()
+*/
+QDateTimeEdit::Section QDateTimeEdit::currentSection() const
+{
+Q_D(const QDateTimeEdit);
+#ifdef QT_KEYPAD_NAVIGATION
+if (QApplication::keypadNavigationEnabled() && d->focusOnButton)
+return NoSection;
+#endif
+return d->convertToPublic(d->sectionType(d->currentSectionIndex));
+}
+void QDateTimeEdit::setCurrentSection(Section section)
+{
+Q_D(QDateTimeEdit);
+if (section == NoSection || !(section & d->sections))
+return;
+d->updateCache(d->value, d->displayText());
+const int size = d->sectionNodes.size();
+int index = d->currentSectionIndex + 1;
+for (int i=0; i<2; ++i) {
+while (index < size) {
+if (d->convertToPublic(d->sectionType(index)) == section) {
+d->edit->setCursorPosition(d->sectionPos(index));
+QDTEDEBUG << d->sectionPos(index);
+return;
+}
+++index;
+}
+index = 0;
+}
+}
+/*!
+\since 4.3
+Returns the Section at \a index.
+If the format is 'yyyy/MM/dd', sectionAt(0) returns YearSection,
+sectionAt(1) returns MonthSection, and sectionAt(2) returns
+YearSection,
+*/
+QDateTimeEdit::Section QDateTimeEdit::sectionAt(int index) const
+{
+Q_D(const QDateTimeEdit);
+if (index < 0 || index >= d->sectionNodes.size())
+return NoSection;
+return d->convertToPublic(d->sectionType(index));
+}
+/*!
+\since 4.3
+\property QDateTimeEdit::sectionCount
+\brief the number of sections displayed.
+If the format is 'yyyy/yy/yyyy', sectionCount returns 3
+*/
+int QDateTimeEdit::sectionCount() const
+{
+Q_D(const QDateTimeEdit);
+return d->sectionNodes.size();
+}
+/*!
+\since 4.3
+\property QDateTimeEdit::currentSectionIndex
+\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
+cursorPosition is 3 currentSectionIndex is 0 etc.
+\a setCurrentSection()
+\sa currentSection()
+*/
+int QDateTimeEdit::currentSectionIndex() const
+{
+Q_D(const QDateTimeEdit);
+return d->currentSectionIndex;
+}
+void QDateTimeEdit::setCurrentSectionIndex(int index)
+{
+Q_D(QDateTimeEdit);
+if (index < 0 || index >= d->sectionNodes.size())
+return;
+d->edit->setCursorPosition(d->sectionPos(index));
+}
+/*!
+\since 4.4
+\brief Returns the calendar widget for the editor if calendarPopup is
+set to true and (sections() & DateSections_Mask) != 0.
+This function creates and returns a calendar widget if none has been set.
+*/
+QCalendarWidget *QDateTimeEdit::calendarWidget() const
+{
+Q_D(const QDateTimeEdit);
+if (!d->calendarPopup || !(d->sections & QDateTimeParser::DateSectionMask))
+return 0;
+if (!d->monthCalendar) {
+const_cast<QDateTimeEditPrivate*>(d)->initCalendarPopup();
+}
+return d->monthCalendar->calendarWidget();
+}
+/*!
+\since 4.4
+Sets the given \a calendarWidget as the widget to be used for the calendar
+pop-up. The editor does not automatically take ownership of the calendar widget.
+\sa calendarPopup
+*/
+void QDateTimeEdit::setCalendarWidget(QCalendarWidget *calendarWidget)
+{
+Q_D(QDateTimeEdit);
+if (!calendarWidget) {
+qWarning("QDateTimeEdit::setCalendarWidget: Cannot set a null calendar widget");
+return;
+}
+if (!d->calendarPopup) {
+qWarning("QDateTimeEdit::setCalendarWidget: calendarPopup is set to false");
+return;
+}
+if (!(d->display & QDateTimeParser::DateSectionMask)) {
+qWarning("QDateTimeEdit::setCalendarWidget: no date sections specified");
+return;
+}
+d->initCalendarPopup(calendarWidget);
+}
+/*!
+\since 4.2
+Selects \a section. If \a section doesn't exist in the currently
+displayed sections this function does nothing. If \a section is
+NoSection this function will unselect all text in the editor.
+Otherwise this function will move the cursor and the current section
+to the selected section.
+\sa currentSection()
+*/
+void QDateTimeEdit::setSelectedSection(Section section)
+{
+Q_D(QDateTimeEdit);
+if (section == NoSection) {
+d->edit->setSelection(d->edit->cursorPosition(), 0);
+} else if (section & d->sections) {
+if (currentSection() != section)
+setCurrentSection(section);
+d->setSelected(d->currentSectionIndex);
+}
+}
+/*!
+\fn QString QDateTimeEdit::sectionText(Section section) const
+Returns the text from the given \a section.
+\sa currentSection()
+*/
+QString QDateTimeEdit::sectionText(Section section) const
+{
+Q_D(const QDateTimeEdit);
+if (section == QDateTimeEdit::NoSection || !(section & d->sections)) {
+return QString();
+}
+d->updateCache(d->value, d->displayText());
+const int sectionIndex = d->absoluteIndex(section, 0);
+return d->sectionText(sectionIndex);
+}
+/*!
+\property QDateTimeEdit::displayFormat
+\brief the format used to display the time/date of the date time edit
+This format is the same as the one used described in QDateTime::toString()
+and QDateTime::fromString()
+Example format strings(assuming that the date is 2nd of July 1969):
+\table
+\header \i Format \i Result
+\row \i dd.MM.yyyy    \i 02.07.1969
+\row \i MMM d yy \i Jul 2 69
+\row \i MMMM d yy \i July 2 69
+\endtable
+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).
+If you specify an invalid format the format will not be set.
+\sa QDateTime::toString(), displayedSections()
+*/
+QString QDateTimeEdit::displayFormat() const
+{
+Q_D(const QDateTimeEdit);
+return isRightToLeft() ? d->unreversedFormat : d->displayFormat;
+}
+template<typename C> static inline C reverse(const C &l)
+{
+C ret;
+for (int i=l.size() - 1; i>=0; --i)
+ret.append(l.at(i));
+return ret;
+}
+void QDateTimeEdit::setDisplayFormat(const QString &format)
+{
+Q_D(QDateTimeEdit);
+if (d->parseFormat(format)) {
+d->unreversedFormat.clear();
+if (isRightToLeft()) {
+d->unreversedFormat = format;
+d->displayFormat.clear();
+for (int i=d->sectionNodes.size() - 1; i>=0; --i) {
+d->displayFormat += d->separators.at(i + 1);
+d->displayFormat += d->sectionFormat(i);
+}
+d->displayFormat += d->separators.at(0);
+d->separators = reverse(d->separators);
+d->sectionNodes = reverse(d->sectionNodes);
+}
+d->formatExplicitlySet = true;
+d->sections = d->convertSections(d->display);
+d->clearCache();
+d->currentSectionIndex = qMin(d->currentSectionIndex, d->sectionNodes.size() - 1);
+const bool timeShown = (d->sections & TimeSections_Mask);
+const bool dateShown = (d->sections & DateSections_Mask);
+Q_ASSERT(dateShown || timeShown);
+if (timeShown && !dateShown) {
+setDateRange(d->value.toDate(), d->value.toDate());
+} else if (dateShown && !timeShown) {
+setTimeRange(QDATETIMEEDIT_TIME_MIN, QDATETIMEEDIT_TIME_MAX);
+d->value = QDateTime(d->value.toDate(), QTime(), d->spec);
+}
+d->updateEdit();
+d->_q_editorCursorPositionChanged(-1, 0);
+}
+}
+/*!
+\property QDateTimeEdit::calendarPopup
+\brief the current calender pop-up showing mode.
+\since 4.2
+The calendar pop-up will be shown upon clicking the arrow button.
+This property is valid only if there is a valid date display format.
+\sa setDisplayFormat()
+*/
+bool QDateTimeEdit::calendarPopup() const
+{
+Q_D(const QDateTimeEdit);
+return d->calendarPopup;
+}
+void QDateTimeEdit::setCalendarPopup(bool enable)
+{
+Q_D(QDateTimeEdit);
+if (enable == d->calendarPopup)
+return;
+setAttribute(Qt::WA_MacShowFocusRect, !enable);
+d->calendarPopup = enable;
+#ifdef QT_KEYPAD_NAVIGATION
+if (!enable)
+d->focusOnButton = false;
+#endif
+d->updateEditFieldGeometry();
+update();
+}
+/*!
+\property QDateTimeEdit::timeSpec
+\brief the current timespec used by the date time edit.
+\since 4.4
+*/
+Qt::TimeSpec QDateTimeEdit::timeSpec() const
+{
+Q_D(const QDateTimeEdit);
+return d->spec;
+}
+void QDateTimeEdit::setTimeSpec(Qt::TimeSpec spec)
+{
+Q_D(QDateTimeEdit);
+if (spec != d->spec) {
+d->spec = spec;
+d->updateTimeSpec();
+}
+}
+/*!
+\reimp
+*/
+QSize QDateTimeEdit::sizeHint() const
+{
+Q_D(const QDateTimeEdit);
+if (d->cachedSizeHint.isEmpty()) {
+ensurePolished();
+const QFontMetrics fm(fontMetrics());
+int h = d->edit->sizeHint().height();
+int w = 0;
+QString s;
+s = d->textFromValue(d->minimum) + QLatin1String("   ");
+w = qMax<int>(w, fm.width(s));
+s = d->textFromValue(d->maximum) + QLatin1String("   ");
+w = qMax<int>(w, fm.width(s));
+if (d->specialValueText.size()) {
+s = d->specialValueText;
+w = qMax<int>(w, fm.width(s));
+}
+w += 2; // cursor blinking space
+QSize hint(w, h);
+#ifdef Q_WS_MAC
+if (d->calendarPopupEnabled()) {
+QStyleOptionComboBox opt;
+d->cachedSizeHint = style()->sizeFromContents(QStyle::CT_ComboBox, &opt, hint, this);
+} else {
+#else
+{
+#endif
+QSize extra(35, 6);
+QStyleOptionSpinBox opt;
+initStyleOption(&opt);
+opt.rect.setSize(hint + extra);
+extra += hint - style()->subControlRect(QStyle::CC_SpinBox, &opt,
+QStyle::SC_SpinBoxEditField, this).size();
+// get closer to final result by repeating the calculation
+opt.rect.setSize(hint + extra);
+extra += hint - style()->subControlRect(QStyle::CC_SpinBox, &opt,
+QStyle::SC_SpinBoxEditField, this).size();
+hint += extra;
+opt.rect = rect();
+d->cachedSizeHint = style()->sizeFromContents(QStyle::CT_SpinBox, &opt, hint, this)
+.expandedTo(QApplication::globalStrut());
+}
+d->cachedMinimumSizeHint = d->cachedSizeHint;
+// essentially make minimumSizeHint return the same as sizeHint for datetimeedits
+}
+return d->cachedSizeHint;
+}
+/*!
+\reimp
+*/
+bool QDateTimeEdit::event(QEvent *event)
+{
+Q_D(QDateTimeEdit);
+switch (event->type()) {
+case QEvent::ApplicationLayoutDirectionChange: {
+const bool was = d->formatExplicitlySet;
+const QString oldFormat = d->displayFormat;
+d->displayFormat.clear();
+setDisplayFormat(oldFormat);
+d->formatExplicitlySet = was;
+break; }
+case QEvent::LocaleChange:
+d->updateEdit();
+break;
+case QEvent::StyleChange:
+#ifdef Q_WS_MAC
+case QEvent::MacSizeChange:
+#endif
+d->setLayoutItemMargins(QStyle::SE_DateTimeEditLayoutItem);
+break;
+default:
+break;
+}
+return QAbstractSpinBox::event(event);
+}
+/*!
+\reimp
+*/
+void QDateTimeEdit::clear()
+{
+Q_D(QDateTimeEdit);
+d->clearSection(d->currentSectionIndex);
+}
+/*!
+\reimp
+*/
+void QDateTimeEdit::keyPressEvent(QKeyEvent *event)
+{
+Q_D(QDateTimeEdit);
+int oldCurrent = d->currentSectionIndex;
+bool select = true;
+bool inserted = false;
+switch (event->key()) {
+#ifdef QT_KEYPAD_NAVIGATION
+case Qt::Key_NumberSign:    //shortcut to popup calendar
+if (QApplication::keypadNavigationEnabled() && d->calendarPopupEnabled()) {
+d->initCalendarPopup();
+d->positionCalendarPopup();
+d->monthCalendar->show();
+return;
+}
+break;
+case Qt::Key_Select:
+if (QApplication::keypadNavigationEnabled()) {
+if (hasEditFocus()) {
+if (d->focusOnButton) {
+d->initCalendarPopup();
+d->positionCalendarPopup();
+d->monthCalendar->show();
+d->focusOnButton = false;
+return;
+}
+setEditFocus(false);
+selectAll();
+} else {
+setEditFocus(true);
+//hide cursor
+d->edit->d_func()->setCursorVisible(false);
+d->edit->d_func()->control->setCursorBlinkPeriod(0);
+d->setSelected(0);
+}
+}
+return;
+#endif
+case Qt::Key_Enter:
+case Qt::Key_Return:
+d->interpret(AlwaysEmit);
+d->setSelected(d->currentSectionIndex, true);
+event->ignore();
+emit editingFinished();
+return;
+default:
+#ifdef QT_KEYPAD_NAVIGATION
+if (QApplication::keypadNavigationEnabled() && !hasEditFocus()
+&& !event->text().isEmpty() && event->text().at(0).isLetterOrNumber()) {
+setEditFocus(true);
+//hide cursor
+d->edit->d_func()->setCursorVisible(false);
+d->edit->d_func()->control->setCursorBlinkPeriod(0);
+d->setSelected(0);
+oldCurrent = 0;
+}
+#endif
+if (!d->isSeparatorKey(event)) {
+inserted = select = !event->text().isEmpty() && event->text().at(0).isPrint()
+&& !(event->modifiers() & ~(Qt::ShiftModifier|Qt::KeypadModifier));
+break;
+}
+case Qt::Key_Left:
+case Qt::Key_Right:
+if (event->key() == Qt::Key_Left || event->key() == Qt::Key_Right) {
+if (
+#ifdef QT_KEYPAD_NAVIGATION
+QApplication::keypadNavigationEnabled() && !hasEditFocus()
+|| !QApplication::keypadNavigationEnabled() &&
+#endif
+!(event->modifiers() & Qt::ControlModifier)) {
+select = false;
+break;
+}
+#ifdef Q_WS_MAC
+else
+#ifdef QT_KEYPAD_NAVIGATION
+if (!QApplication::keypadNavigationEnabled())
+#endif
+{
+select = (event->modifiers() & Qt::ShiftModifier);
+break;
+}
+#endif
+}
+// else fall through
+case Qt::Key_Backtab:
+case Qt::Key_Tab: {
+event->accept();
+if (d->specialValue()) {
+d->edit->setSelection(d->edit->cursorPosition(), 0);
+return;
+}
+const bool forward = event->key() != Qt::Key_Left && event->key() != Qt::Key_Backtab
+&& (event->key() != Qt::Key_Tab || !(event->modifiers() & Qt::ShiftModifier));
+#ifdef QT_KEYPAD_NAVIGATION
+int newSection = d->nextPrevSection(d->currentSectionIndex, forward);
+if (QApplication::keypadNavigationEnabled()) {
+if (d->focusOnButton) {
+newSection = forward ? 0 : d->sectionNodes.size() - 1;
+d->focusOnButton = false;
+update();
+} else if (newSection < 0 && select && d->calendarPopupEnabled()) {
+setSelectedSection(NoSection);
+d->focusOnButton = true;
+update();
+return;
+}
+}
+// only allow date/time sections to be selected.
+if (newSection & ~(QDateTimeParser::TimeSectionMask | QDateTimeParser::DateSectionMask))
+return;
+#endif
+//key tab and backtab will be managed thrgout QWidget::event
+if (event->key() != Qt::Key_Backtab && event->key() != Qt::Key_Tab)
+focusNextPrevChild(forward);
+return; }
+}
+QAbstractSpinBox::keyPressEvent(event);
+if (select && !(event->modifiers() & Qt::ShiftModifier) && !d->edit->hasSelectedText()) {
+if (inserted && d->sectionAt(d->edit->cursorPosition()) == QDateTimeParser::NoSectionIndex) {
+QString str = d->displayText();
+int pos = d->edit->cursorPosition();
+if (validate(str, pos) == QValidator::Acceptable
+&& (d->sectionNodes.at(oldCurrent).count != 1
+|| d->sectionMaxSize(oldCurrent) == d->sectionSize(oldCurrent)
+|| d->skipToNextSection(oldCurrent, d->value.toDateTime(), d->sectionText(oldCurrent)))) {
+QDTEDEBUG << "Setting currentsection to"
+<< d->closestSection(d->edit->cursorPosition(), true) << event->key()
+<< oldCurrent << str;
+const int tmp = d->closestSection(d->edit->cursorPosition(), true);
+if (tmp >= 0)
+d->currentSectionIndex = tmp;
+}
+}
+if (d->currentSectionIndex != oldCurrent) {
+d->setSelected(d->currentSectionIndex);
+}
+}
+if (d->specialValue()) {
+d->edit->setSelection(d->edit->cursorPosition(), 0);
+}
+}
+/*!
+\reimp
+*/
+#ifndef QT_NO_WHEELEVENT
+void QDateTimeEdit::wheelEvent(QWheelEvent *event)
+{
+QAbstractSpinBox::wheelEvent(event);
+}
+#endif
+/*!
+\reimp
+*/
+void QDateTimeEdit::focusInEvent(QFocusEvent *event)
+{
+Q_D(QDateTimeEdit);
+QAbstractSpinBox::focusInEvent(event);
+QString *frm = 0;
+const int oldPos = d->edit->cursorPosition();
+if (!d->formatExplicitlySet) {
+if (d->displayFormat == d->defaultTimeFormat) {
+frm = &d->defaultTimeFormat;
+} else if (d->displayFormat == d->defaultDateFormat) {
+frm = &d->defaultDateFormat;
+} else if (d->displayFormat == d->defaultDateTimeFormat) {
+frm = &d->defaultDateTimeFormat;
+}
+if (frm) {
+d->readLocaleSettings();
+if (d->displayFormat != *frm) {
+setDisplayFormat(*frm);
+d->formatExplicitlySet = false;
+d->edit->setCursorPosition(oldPos);
+}
+}
+}
+const bool oldHasHadFocus = d->hasHadFocus;
+d->hasHadFocus = true;
+bool first = true;
+switch (event->reason()) {
+case Qt::BacktabFocusReason:
+first = false;
+break;
+case Qt::MouseFocusReason:
+case Qt::PopupFocusReason:
+return;
+case Qt::ActiveWindowFocusReason:
+if (oldHasHadFocus)
+return;
+case Qt::ShortcutFocusReason:
+case Qt::TabFocusReason:
+default:
+break;
+}
+if (isRightToLeft())
+first = !first;
+d->updateEdit(); // needed to make it update specialValueText
+d->setSelected(first ? 0 : d->sectionNodes.size() - 1);
+}
+/*!
+\reimp
+*/
+bool QDateTimeEdit::focusNextPrevChild(bool next)
+{
+Q_D(QDateTimeEdit);
+const int newSection = d->nextPrevSection(d->currentSectionIndex, next);
+switch (d->sectionType(newSection)) {
+case QDateTimeParser::NoSection:
+case QDateTimeParser::FirstSection:
+case QDateTimeParser::LastSection:
+return QAbstractSpinBox::focusNextPrevChild(next);
+default:
+d->edit->deselect();
+d->edit->setCursorPosition(d->sectionPos(newSection));
+QDTEDEBUG << d->sectionPos(newSection);
+d->setSelected(newSection, true);
+return false;
+}
+}
+/*!
+\reimp
+*/
+void QDateTimeEdit::stepBy(int steps)
+{
+Q_D(QDateTimeEdit);
+#ifdef QT_KEYPAD_NAVIGATION
+// with keypad navigation and not editFocus, left right change the date/time by a fixed amount.
+if (QApplication::keypadNavigationEnabled() && !hasEditFocus()) {
+// if date based, shift by day.  else shift by 15min
+if (d->sections & DateSections_Mask) {
+setDateTime(dateTime().addDays(steps));
+} else {
+int minutes = time().hour()*60 + time().minute();
+int blocks = minutes/15;
+blocks += steps;
+/* rounding involved */
+if (minutes % 15) {
+if (steps < 0) {
+blocks += 1; // do one less step;
+}
+}
+minutes = blocks * 15;
+/* need to take wrapping into account */
+if (!d->wrapping) {
+int max_minutes = d->maximum.toTime().hour()*60 + d->maximum.toTime().minute();
+int min_minutes = d->minimum.toTime().hour()*60 + d->minimum.toTime().minute();
+if (minutes >= max_minutes) {
+setTime(maximumTime());
+return;
+} else if (minutes <= min_minutes) {
+setTime(minimumTime());
+return;
+}
+}
+setTime(QTime(minutes/60, minutes%60));
+}
+return;
+}
+#endif
+// don't optimize away steps == 0. This is the only way to select
+// the currentSection in Qt 4.1.x
+if (d->specialValue() && displayedSections() != AmPmSection) {
+for (int i=0; i<d->sectionNodes.size(); ++i) {
+if (d->sectionType(i) != QDateTimeParser::AmPmSection) {
+d->currentSectionIndex = i;
+break;
+}
+}
+}
+d->setValue(d->stepBy(d->currentSectionIndex, steps, false), EmitIfChanged);
+d->updateCache(d->value, d->displayText());
+d->setSelected(d->currentSectionIndex);
+d->updateTimeSpec();
+}
+/*!
+This virtual function is used by the date time edit whenever it
+needs to display \a dateTime.
+If you reimplement this, you may also need to reimplement validate().
+\sa dateTimeFromText(), validate()
+*/
+QString QDateTimeEdit::textFromDateTime(const QDateTime &dateTime) const
+{
+Q_D(const QDateTimeEdit);
+return locale().toString(dateTime, d->displayFormat);
+}
+/*!
+Returns an appropriate datetime for the given \a text.
+This virtual function is used by the datetime edit whenever it
+needs to interpret text entered by the user as a value.
+\sa textFromDateTime(), validate()
+*/
+QDateTime QDateTimeEdit::dateTimeFromText(const QString &text) const
+{
+Q_D(const QDateTimeEdit);
+QString copy = text;
+int pos = d->edit->cursorPosition();
+QValidator::State state = QValidator::Acceptable;
+return d->validateAndInterpret(copy, pos, state);
+}
+/*!
+\reimp
+*/
+QValidator::State QDateTimeEdit::validate(QString &text, int &pos) const
+{
+Q_D(const QDateTimeEdit);
+QValidator::State state;
+d->validateAndInterpret(text, pos, state);
+return state;
+}
+/*!
+\reimp
+*/
+void QDateTimeEdit::fixup(QString &input) const
+{
+Q_D(const QDateTimeEdit);
+QValidator::State state;
+int copy = d->edit->cursorPosition();
+d->validateAndInterpret(input, copy, state, true);
+}
+/*!
+\reimp
+*/
+QDateTimeEdit::StepEnabled QDateTimeEdit::stepEnabled() const
+{
+Q_D(const QDateTimeEdit);
+if (d->readOnly)
+return StepEnabled(0);
+if (d->specialValue()) {
+return (d->minimum == d->maximum ? StepEnabled(0) : StepEnabled(StepUpEnabled));
+}
+QAbstractSpinBox::StepEnabled ret = 0;
+#ifdef QT_KEYPAD_NAVIGATION
+if (QApplication::keypadNavigationEnabled() && !hasEditFocus()) {
+if (d->wrapping)
+return StepEnabled(StepUpEnabled | StepDownEnabled);
+// 3 cases.  date, time, datetime.  each case look
+// at just the relavant component.
+QVariant max, min, val;
+if (!(d->sections & DateSections_Mask)) {
+// time only, no date
+max = d->maximum.toTime();
+min = d->minimum.toTime();
+val = d->value.toTime();
+} else if (!(d->sections & TimeSections_Mask)) {
+// date only, no time
+max = d->maximum.toDate();
+min = d->minimum.toDate();
+val = d->value.toDate();
+} else {
+// both
+max = d->maximum;
+min = d->minimum;
+val = d->value;
+}
+if (val != min)
+ret |= QAbstractSpinBox::StepDownEnabled;
+if (val != max)
+ret |= QAbstractSpinBox::StepUpEnabled;
+return ret;
+}
+#endif
+switch (d->sectionType(d->currentSectionIndex)) {
+case QDateTimeParser::NoSection:
+case QDateTimeParser::FirstSection:
+case QDateTimeParser::LastSection: return 0;
+default: break;
+}
+if (d->wrapping)
+return StepEnabled(StepDownEnabled|StepUpEnabled);
+QVariant v = d->stepBy(d->currentSectionIndex, 1, true);
+if (v != d->value) {
+ret |= QAbstractSpinBox::StepUpEnabled;
+}
+v = d->stepBy(d->currentSectionIndex, -1, true);
+if (v != d->value) {
+ret |= QAbstractSpinBox::StepDownEnabled;
+}
+return ret;
+}
+/*!
+\reimp
+*/
+void QDateTimeEdit::mousePressEvent(QMouseEvent *event)
+{
+Q_D(QDateTimeEdit);
+if (!d->calendarPopupEnabled()) {
+QAbstractSpinBox::mousePressEvent(event);
+return;
+}
+d->updateHoverControl(event->pos());
+if (d->hoverControl == QStyle::SC_ComboBoxArrow) {
+event->accept();
+if (d->readOnly) {
+return;
+}
+d->updateArrow(QStyle::State_Sunken);
+d->initCalendarPopup();
+d->positionCalendarPopup();
+//Show the calendar
+d->monthCalendar->show();
+} else {
+QAbstractSpinBox::mousePressEvent(event);
+}
+}
+/*!
+\class QTimeEdit
+\brief The QTimeEdit class provides a widget for editing times based on
+the QDateTimeEdit widget.
+\ingroup basicwidgets
+Many of the properties and functions provided by QTimeEdit are implemented in
+QDateTimeEdit. The following properties are most relevant to users of this
+class:
+\list
+\o \l{QDateTimeEdit::time}{time} holds the date displayed by the widget.
+\o \l{QDateTimeEdit::minimumTime}{minimumTime} defines the minimum (earliest) time
+that can be set by the user.
+\o \l{QDateTimeEdit::maximumTime}{maximumTime} defines the maximum (latest) time
+that can be set by the user.
+\o \l{QDateTimeEdit::displayFormat}{displayFormat} contains a string that is used
+to format the time displayed in the widget.
+\endlist
+\table 100%
+\row \o \inlineimage windowsxp-timeedit.png Screenshot of a Windows XP style time editing widget
+\o A time editing widget shown in the \l{Windows XP Style Widget Gallery}{Windows XP widget style}.
+\row \o \inlineimage macintosh-timeedit.png Screenshot of a Macintosh style time editing widget
+\o A time editing widget shown in the \l{Macintosh Style Widget Gallery}{Macintosh widget style}.
+\row \o \inlineimage plastique-timeedit.png Screenshot of a Plastique style time editing widget
+\o A time editing widget shown in the \l{Plastique Style Widget Gallery}{Plastique widget style}.
+\endtable
+\sa QDateEdit, QDateTimeEdit
+*/
+/*!
+Constructs an empty time editor with a \a parent.
+*/
+QTimeEdit::QTimeEdit(QWidget *parent)
+: QDateTimeEdit(QDATETIMEEDIT_TIME_MIN, QVariant::Time, parent)
+{
+}
+/*!
+Constructs an empty time editor with a \a parent. The time is set
+to \a time.
+*/
+QTimeEdit::QTimeEdit(const QTime &time, QWidget *parent)
+: QDateTimeEdit(time, QVariant::Time, parent)
+{
+}
+/*!
+\property QTimeEdit::time
+\brief the QTime that is shown in the widget
+By default, this property contains a time of 00:00:00 and 0 milliseconds.
+*/
+/*!
+\class QDateEdit
+\brief The QDateEdit class provides a widget for editing dates based on
+the QDateTimeEdit widget.
+\ingroup basicwidgets
+Many of the properties and functions provided by QDateEdit are implemented in
+QDateTimeEdit. The following properties are most relevant to users of this
+class:
+\list
+\o \l{QDateTimeEdit::date}{date} holds the date displayed by the widget.
+\o \l{QDateTimeEdit::minimumDate}{minimumDate} defines the minimum (earliest)
+date that can be set by the user.
+\o \l{QDateTimeEdit::maximumDate}{maximumDate} defines the maximum (latest) date
+that can be set by the user.
+\o \l{QDateTimeEdit::displayFormat}{displayFormat} contains a string that is used
+to format the date displayed in the widget.
+\endlist
+\table 100%
+\row \o \inlineimage windowsxp-dateedit.png Screenshot of a Windows XP style date editing widget
+\o A date editing widget shown in the \l{Windows XP Style Widget Gallery}{Windows XP widget style}.
+\row \o \inlineimage macintosh-dateedit.png Screenshot of a Macintosh style date editing widget
+\o A date editing widget shown in the \l{Macintosh Style Widget Gallery}{Macintosh widget style}.
+\row \o \inlineimage plastique-dateedit.png Screenshot of a Plastique style date editing widget
+\o A date editing widget shown in the \l{Plastique Style Widget Gallery}{Plastique widget style}.
+\endtable
+\sa QTimeEdit, QDateTimeEdit
+*/
+/*!
+Constructs an empty date editor with a \a parent.
+*/
+QDateEdit::QDateEdit(QWidget *parent)
+: QDateTimeEdit(QDATETIMEEDIT_DATE_INITIAL, QVariant::Date, parent)
+{
+}
+/*!
+Constructs an empty date editor with a \a parent. The date is set
+to \a date.
+*/
+QDateEdit::QDateEdit(const QDate &date, QWidget *parent)
+: QDateTimeEdit(date, QVariant::Date, parent)
+{
+}
+/*!
+\property QDateEdit::date
+\brief the QDate that is shown in the widget
+By default, this property contains a date referring to January 1, 2000.
+*/
+// --- QDateTimeEditPrivate ---
+/*!
+\internal
+Constructs a QDateTimeEditPrivate object
+*/
+QDateTimeEditPrivate::QDateTimeEditPrivate()
+: QDateTimeParser(QVariant::DateTime, QDateTimeParser::DateTimeEdit)
+{
+hasHadFocus = false;
+formatExplicitlySet = false;
+cacheGuard = false;
+fixday = true;
+type = QVariant::DateTime;
+sections = 0;
+cachedDay = -1;
+currentSectionIndex = FirstSectionIndex;
+first.type = FirstSection;
+last.type = LastSection;
+none.type = NoSection;
+first.pos = 0;
+last.pos = -1;
+none.pos = -1;
+sections = 0;
+calendarPopup = false;
+minimum = QDATETIMEEDIT_COMPAT_DATETIME_MIN;
+maximum = QDATETIMEEDIT_DATETIME_MAX;
+arrowState = QStyle::State_None;
+monthCalendar = 0;
+readLocaleSettings();
+#ifdef QT_KEYPAD_NAVIGATION
+focusOnButton = false;
+#endif
+}
+void QDateTimeEditPrivate::updateTimeSpec()
+{
+minimum = minimum.toDateTime().toTimeSpec(spec);
+maximum = maximum.toDateTime().toTimeSpec(spec);
+value = value.toDateTime().toTimeSpec(spec);
+}
+void QDateTimeEditPrivate::updateEdit()
+{
+const QString newText = (specialValue() ? specialValueText : textFromValue(value));
+if (newText == displayText())
+return;
+int selsize = edit->selectedText().size();
+const bool sb = edit->blockSignals(true);
+edit->setText(newText);
+if (!specialValue()
+#ifdef QT_KEYPAD_NAVIGATION
+&& !(QApplication::keypadNavigationEnabled() && !edit->hasEditFocus())
+#endif
+) {
+int cursor = sectionPos(currentSectionIndex);
+QDTEDEBUG << "cursor is " << cursor << currentSectionIndex;
+cursor = qBound(0, cursor, displayText().size());
+QDTEDEBUG << cursor;
+if (selsize > 0) {
+edit->setSelection(cursor, selsize);
+QDTEDEBUG << cursor << selsize;
+} else {
+edit->setCursorPosition(cursor);
+QDTEDEBUG << cursor;
+}
+}
+edit->blockSignals(sb);
+}
+/*!
+\internal
+Selects the section \a s. If \a forward is false selects backwards.
+*/
+void QDateTimeEditPrivate::setSelected(int sectionIndex, bool forward)
+{
+if (specialValue()
+#ifdef QT_KEYPAD_NAVIGATION
+|| (QApplication::keypadNavigationEnabled() && !edit->hasEditFocus())
+#endif
+) {
+edit->selectAll();
+} else {
+const SectionNode &node = sectionNode(sectionIndex);
+if (node.type == NoSection || node.type == LastSection || node.type == FirstSection)
+return;
+updateCache(value, displayText());
+const int size = sectionSize(sectionIndex);
+if (forward) {
+edit->setSelection(sectionPos(node), size);
+} else {
+edit->setSelection(sectionPos(node) + size, -size);
+}
+}
+}
+/*!
+\internal
+Returns the section at index \a index or NoSection if there are no sections there.
+*/
+int QDateTimeEditPrivate::sectionAt(int pos) const
+{
+if (pos < separators.first().size()) {
+return (pos == 0 ? FirstSectionIndex : NoSectionIndex);
+} else if (displayText().size() - pos < separators.last().size() + 1) {
+if (separators.last().size() == 0) {
+return sectionNodes.count() - 1;
+}
+return (pos == displayText().size() ? LastSectionIndex : NoSectionIndex);
+}
+updateCache(value, displayText());
+for (int i=0; i<sectionNodes.size(); ++i) {
+const int tmp = sectionPos(i);
+if (pos < tmp + sectionSize(i)) {
+return (pos < tmp ? -1 : i);
+}
+}
+return -1;
+}
+/*!
+\internal
+Returns the closest section of index \a index. Searches forward
+for a section if \a forward is true. Otherwise searches backwards.
+*/
+int QDateTimeEditPrivate::closestSection(int pos, bool forward) const
+{
+Q_ASSERT(pos >= 0);
+if (pos < separators.first().size()) {
+return forward ? 0 : FirstSectionIndex;
+} else if (displayText().size() - pos < separators.last().size() + 1) {
+return forward ? LastSectionIndex : sectionNodes.size() - 1;
+}
+updateCache(value, displayText());
+for (int i=0; i<sectionNodes.size(); ++i) {
+const int tmp = sectionPos(sectionNodes.at(i));
+if (pos < tmp + sectionSize(i)) {
+if (pos < tmp && !forward) {
+return i-1;
+}
+return i;
+} else if (i == sectionNodes.size() - 1 && pos > tmp) {
+return i;
+}
+}
+qWarning("QDateTimeEdit: Internal Error: closestSection returned NoSection");
+return NoSectionIndex;
+}
+/*!
+\internal
+Returns a copy of the section that is before or after \a current, depending on \a forward.
+*/
+int QDateTimeEditPrivate::nextPrevSection(int current, bool forward) const
+{
+Q_Q(const QDateTimeEdit);
+if (q->isRightToLeft())
+forward = !forward;
+switch (current) {
+case FirstSectionIndex: return forward ? 0 : FirstSectionIndex;
+case LastSectionIndex: return (forward ? LastSectionIndex : sectionNodes.size() - 1);
+case NoSectionIndex: return FirstSectionIndex;
+default: break;
+}
+Q_ASSERT(current >= 0 && current < sectionNodes.size());
+current += (forward ? 1 : -1);
+if (current >= sectionNodes.size()) {
+return LastSectionIndex;
+} else if (current < 0) {
+return FirstSectionIndex;
+}
+return current;
+}
+/*!
+\internal
+Clears the text of section \a s.
+*/
+void QDateTimeEditPrivate::clearSection(int index)
+{
+const QLatin1Char space(' ');
+int cursorPos = edit->cursorPosition();
+bool blocked = edit->blockSignals(true);
+QString t = edit->text();
+const int pos = sectionPos(index);
+if (pos == -1) {
+qWarning("QDateTimeEdit: Internal error (%s:%d)", __FILE__, __LINE__);
+return;
+}
+const int size = sectionSize(index);
+t.replace(pos, size, QString().fill(space, size));
+edit->setText(t);
+edit->setCursorPosition(cursorPos);
+QDTEDEBUG << cursorPos;
+edit->blockSignals(blocked);
+}
+/*!
+\internal
+updates the cached values
+*/
+void QDateTimeEditPrivate::updateCache(const QVariant &val, const QString &str) const
+{
+if (val != cachedValue || str != cachedText || cacheGuard) {
+cacheGuard = true;
+QString copy = str;
+int unused = edit->cursorPosition();
+QValidator::State unusedState;
+validateAndInterpret(copy, unused, unusedState);
+cacheGuard = false;
+}
+}
+/*!
+\internal
+parses and validates \a input
+*/
+QDateTime QDateTimeEditPrivate::validateAndInterpret(QString &input, int &position,
+QValidator::State &state, bool fixup) const
+{
+if (input.isEmpty()) {
+if (sectionNodes.size() == 1 || !specialValueText.isEmpty()) {
+state = QValidator::Intermediate;
+} else {
+state = QValidator::Invalid;
+}
+return getZeroVariant().toDateTime();
+} else if (cachedText == input && !fixup) {
+state = cachedState;
+return cachedValue.toDateTime();
+} else if (!specialValueText.isEmpty()) {
+bool changeCase = false;
+const int max = qMin(specialValueText.size(), input.size());
+int i;
+for (i=0; i<max; ++i) {
+const QChar ic = input.at(i);
+const QChar sc = specialValueText.at(i);
+if (ic != sc) {
+if (sc.toLower() == ic.toLower()) {
+changeCase = true;
+} else {
+break;
+}
+}
+}
+if (i == max) {
+state = specialValueText.size() == input.size() ? QValidator::Acceptable : QValidator::Intermediate;
+if (changeCase) {
+input = specialValueText.left(max);
+}
+return minimum.toDateTime();
+}
+}
+StateNode tmp = parse(input, position, value.toDateTime(), fixup);
+input = tmp.input;
+state = QValidator::State(int(tmp.state));
+if (state == QValidator::Acceptable) {
+if (tmp.conflicts && conflictGuard != tmp.value) {
+conflictGuard = tmp.value;
+clearCache();
+input = textFromValue(tmp.value);
+updateCache(tmp.value, input);
+conflictGuard.clear();
+} else {
+cachedText = input;
+cachedState = state;
+cachedValue = tmp.value;
+}
+} else {
+clearCache();
+}
+return (tmp.value.isNull() ? getZeroVariant().toDateTime() : tmp.value);
+}
+/*!
+\internal
+*/
+QString QDateTimeEditPrivate::textFromValue(const QVariant &f) const
+{
+Q_Q(const QDateTimeEdit);
+return q->textFromDateTime(f.toDateTime());
+}
+/*!
+\internal
+This function's name is slightly confusing; it is not to be confused
+with QAbstractSpinBox::valueFromText().
+*/
+QVariant QDateTimeEditPrivate::valueFromText(const QString &f) const
+{
+Q_Q(const QDateTimeEdit);
+return q->dateTimeFromText(f).toTimeSpec(spec);
+}
+/*!
+\internal
+Internal function called by QDateTimeEdit::stepBy(). Also takes a
+Section for which section to step on and a bool \a test for
+whether or not to modify the internal cachedDay variable. This is
+necessary because the function is called from the const function
+QDateTimeEdit::stepEnabled() as well as QDateTimeEdit::stepBy().
+*/
+QDateTime QDateTimeEditPrivate::stepBy(int sectionIndex, int steps, bool test) const
+{
+Q_Q(const QDateTimeEdit);
+QDateTime v = value.toDateTime();
+QString str = displayText();
+int pos = edit->cursorPosition();
+const SectionNode sn = sectionNode(sectionIndex);
+int val;
+// to make sure it behaves reasonably when typing something and then stepping in non-tracking mode
+if (!test && pendingEmit) {
+if (q->validate(str, pos) != QValidator::Acceptable) {
+v = value.toDateTime();
+} else {
+v = q->dateTimeFromText(str);
+}
+val = getDigit(v, sectionIndex);
+} else {
+val = getDigit(v, sectionIndex);
+}
+val += steps;
+const int min = absoluteMin(sectionIndex);
+const int max = absoluteMax(sectionIndex, value.toDateTime());
+if (val < min) {
+val = (wrapping ? max - (min - val) + 1 : min);
+} else if (val > max) {
+val = (wrapping ? min + val - max - 1 : max);
+}
+const int oldDay = v.date().day();
+setDigit(v, sectionIndex, val);
+// if this sets year or month it will make
+// sure that days are lowered if needed.
+const QDateTime minimumDateTime = minimum.toDateTime();
+const QDateTime maximumDateTime = maximum.toDateTime();
+// changing one section should only modify that section, if possible
+if (sn.type != AmPmSection && (v < minimumDateTime || v > maximumDateTime)) {
+const int localmin = getDigit(minimumDateTime, sectionIndex);
+const int localmax = getDigit(maximumDateTime, sectionIndex);
+if (wrapping) {
+// just because we hit the roof in one direction, it
+// doesn't mean that we hit the floor in the other
+if (steps > 0) {
+setDigit(v, sectionIndex, min);
+if (!(sn.type & (DaySection|DayOfWeekSection)) && sections & DateSectionMask) {
+const int daysInMonth = v.date().daysInMonth();
+if (v.date().day() < oldDay && v.date().day() < daysInMonth) {
+const int adds = qMin(oldDay, daysInMonth);
+v = v.addDays(adds - v.date().day());
+}
+}
+if (v < minimumDateTime) {
+setDigit(v, sectionIndex, localmin);
+if (v < minimumDateTime)
+setDigit(v, sectionIndex, localmin + 1);
+}
+} else {
+setDigit(v, sectionIndex, max);
+if (!(sn.type & (DaySection|DayOfWeekSection)) && sections & DateSectionMask) {
+const int daysInMonth = v.date().daysInMonth();
+if (v.date().day() < oldDay && v.date().day() < daysInMonth) {
+const int adds = qMin(oldDay, daysInMonth);
+v = v.addDays(adds - v.date().day());
+}
+}
+if (v > maximumDateTime) {
+setDigit(v, sectionIndex, localmax);
+if (v > maximumDateTime)
+setDigit(v, sectionIndex, localmax - 1);
+}
+}
+} else {
+setDigit(v, sectionIndex, (steps > 0 ? localmax : localmin));
+}
+}
+if (!test && oldDay != v.date().day() && !(sn.type & (DaySection|DayOfWeekSection))) {
+// this should not happen when called from stepEnabled
+cachedDay = qMax<int>(oldDay, cachedDay);
+}
+if (v < minimumDateTime) {
+if (wrapping) {
+QDateTime t = v;
+setDigit(t, sectionIndex, steps < 0 ? max : min);
+bool mincmp = (t >= minimumDateTime);
+bool maxcmp = (t <= maximumDateTime);
+if (!mincmp || !maxcmp) {
+setDigit(t, sectionIndex, getDigit(steps < 0
+? maximumDateTime
+: minimumDateTime, sectionIndex));
+mincmp = (t >= minimumDateTime);
+maxcmp = (t <= maximumDateTime);
+}
+if (mincmp && maxcmp) {
+v = t;
+}
+} else {
+v = value.toDateTime();
+}
+} else if (v > maximumDateTime) {
+if (wrapping) {
+QDateTime t = v;
+setDigit(t, sectionIndex, steps > 0 ? min : max);
+bool mincmp = (t >= minimumDateTime);
+bool maxcmp = (t <= maximumDateTime);
+if (!mincmp || !maxcmp) {
+setDigit(t, sectionIndex, getDigit(steps > 0 ?
+minimumDateTime :
+maximumDateTime, sectionIndex));
+mincmp = (t >= minimumDateTime);
+maxcmp = (t <= maximumDateTime);
+}
+if (mincmp && maxcmp) {
+v = t;
+}
+} else {
+v = value.toDateTime();
+}
+}
+const QDateTime ret = bound(v, value, steps).toDateTime().toTimeSpec(spec);
+return ret;
+}
+/*!
+\internal
+*/
+void QDateTimeEditPrivate::emitSignals(EmitPolicy ep, const QVariant &old)
+{
+Q_Q(QDateTimeEdit);
+if (ep == NeverEmit) {
+return;
+}
+pendingEmit = false;
+const bool dodate = value.toDate().isValid() && (sections & DateSectionMask);
+const bool datechanged = (ep == AlwaysEmit || old.toDate() != value.toDate());
+const bool dotime = value.toTime().isValid() && (sections & TimeSectionMask);
+const bool timechanged = (ep == AlwaysEmit || old.toTime() != value.toTime());
+updateCache(value, displayText());
+syncCalendarWidget();
+if (datechanged || timechanged)
+emit q->dateTimeChanged(value.toDateTime());
+if (dodate && datechanged)
+emit q->dateChanged(value.toDate());
+if (dotime && timechanged)
+emit q->timeChanged(value.toTime());
+}
+/*!
+\internal
+*/
+void QDateTimeEditPrivate::_q_editorCursorPositionChanged(int oldpos, int newpos)
+{
+if (ignoreCursorPositionChanged || specialValue())
+return;
+const QString oldText = displayText();
+updateCache(value, oldText);
+const bool allowChange = !edit->hasSelectedText();
+const bool forward = oldpos <= newpos;
+ignoreCursorPositionChanged = true;
+int s = sectionAt(newpos);
+if (s == NoSectionIndex && forward && newpos > 0) {
+s = sectionAt(newpos - 1);
+}
+int c = newpos;
+const int selstart = edit->selectionStart();
+const int selSection = sectionAt(selstart);
+const int l = selSection != -1 ? sectionSize(selSection) : 0;
+if (s == NoSectionIndex) {
+if (l > 0 && selstart == sectionPos(selSection) && edit->selectedText().size() == l) {
+s = selSection;
+if (allowChange)
+setSelected(selSection, true);
+c = -1;
+} else {
+int closest = closestSection(newpos, forward);
+c = sectionPos(closest) + (forward ? 0 : qMax<int>(0, sectionSize(closest)));
+if (allowChange) {
+edit->setCursorPosition(c);
+QDTEDEBUG << c;
+}
+s = closest;
+}
+}
+if (allowChange && currentSectionIndex != s) {
+interpret(EmitIfChanged);
+}
+if (c == -1) {
+setSelected(s, true);
+} else if (!edit->hasSelectedText()) {
+if (oldpos < newpos) {
+edit->setCursorPosition(displayText().size() - (oldText.size() - c));
+} else {
+edit->setCursorPosition(c);
+}
+}
+QDTEDEBUG << "currentSectionIndex is set to" << sectionName(sectionType(s))
+<< oldpos << newpos
+<< "was" << sectionName(sectionType(currentSectionIndex));
+currentSectionIndex = s;
+Q_ASSERT_X(currentSectionIndex < sectionNodes.size(),
+"QDateTimeEditPrivate::_q_editorCursorPositionChanged()",
+qPrintable(QString::fromAscii("Internal error (%1 %2)").
+arg(currentSectionIndex).
+arg(sectionNodes.size())));
+ignoreCursorPositionChanged = false;
+}
+/*!
+\internal
+Try to get the format from the local settings
+*/
+void QDateTimeEditPrivate::readLocaleSettings()
+{
+const QLocale loc;
+defaultTimeFormat = loc.timeFormat(QLocale::ShortFormat);
+defaultDateFormat = loc.dateFormat(QLocale::ShortFormat);
+defaultDateTimeFormat = loc.dateTimeFormat(QLocale::ShortFormat);
+}
+QDateTimeEdit::Section QDateTimeEditPrivate::convertToPublic(QDateTimeParser::Section s)
+{
+switch (s & ~Internal) {
+case AmPmSection: return QDateTimeEdit::AmPmSection;
+case MSecSection: return QDateTimeEdit::MSecSection;
+case SecondSection: return QDateTimeEdit::SecondSection;
+case MinuteSection: return QDateTimeEdit::MinuteSection;
+case DayOfWeekSection:
+case DaySection: return QDateTimeEdit::DaySection;
+case MonthSection: return QDateTimeEdit::MonthSection;
+case YearSection2Digits:
+case YearSection: return QDateTimeEdit::YearSection;
+case Hour12Section:
+case Hour24Section: return QDateTimeEdit::HourSection;
+case FirstSection:
+case NoSection:
+case LastSection: break;
+}
+return QDateTimeEdit::NoSection;
+}
+QDateTimeEdit::Sections QDateTimeEditPrivate::convertSections(QDateTimeParser::Sections s)
+{
+QDateTimeEdit::Sections ret = 0;
+if (s & QDateTimeParser::MSecSection)
+ret |= QDateTimeEdit::MSecSection;
+if (s & QDateTimeParser::SecondSection)
+ret |= QDateTimeEdit::SecondSection;
+if (s & QDateTimeParser::MinuteSection)
+ret |= QDateTimeEdit::MinuteSection;
+if (s & (QDateTimeParser::Hour24Section|QDateTimeParser::Hour12Section))
+ret |= QDateTimeEdit::HourSection;
+if (s & QDateTimeParser::AmPmSection)
+ret |= QDateTimeEdit::AmPmSection;
+if (s & (QDateTimeParser::DaySection|QDateTimeParser::DayOfWeekSection))
+ret |= QDateTimeEdit::DaySection;
+if (s & QDateTimeParser::MonthSection)
+ret |= QDateTimeEdit::MonthSection;
+if (s & (QDateTimeParser::YearSection|QDateTimeParser::YearSection2Digits))
+ret |= QDateTimeEdit::YearSection;
+return ret;
+}
+/*!
+\reimp
+*/
+void QDateTimeEdit::paintEvent(QPaintEvent *event)
+{
+Q_D(QDateTimeEdit);
+if (!d->calendarPopupEnabled()) {
+QAbstractSpinBox::paintEvent(event);
+return;
+}
+QStyleOptionSpinBox opt;
+initStyleOption(&opt);
+QStyleOptionComboBox optCombo;
+optCombo.init(this);
+optCombo.editable = true;
+	optCombo.frame = opt.frame;
+optCombo.subControls = opt.subControls;
+optCombo.activeSubControls = opt.activeSubControls;
+optCombo.state = opt.state;
+if (d->readOnly) {
+optCombo.state &= ~QStyle::State_Enabled;
+}
+QPainter p(this);
+style()->drawComplexControl(QStyle::CC_ComboBox, &optCombo, &p, this);
+}
+QString QDateTimeEditPrivate::getAmPmText(AmPm ap, Case cs) const
+{
+if (ap == AmText) {
+return (cs == UpperCase ? QDateTimeEdit::tr("AM") : QDateTimeEdit::tr("am"));
+} else {
+return (cs == UpperCase ? QDateTimeEdit::tr("PM") : QDateTimeEdit::tr("pm"));
+}
+}
+int QDateTimeEditPrivate::absoluteIndex(QDateTimeEdit::Section s, int index) const
+{
+for (int i=0; i<sectionNodes.size(); ++i) {
+if (convertToPublic(sectionNodes.at(i).type) == s && index-- == 0) {
+return i;
+}
+}
+return NoSectionIndex;
+}
+int QDateTimeEditPrivate::absoluteIndex(const SectionNode &s) const
+{
+return sectionNodes.indexOf(s);
+}
+void QDateTimeEditPrivate::interpret(EmitPolicy ep)
+{
+Q_Q(QDateTimeEdit);
+QString tmp = displayText();
+int pos = edit->cursorPosition();
+const QValidator::State state = q->validate(tmp, pos);
+if (state != QValidator::Acceptable
+&& correctionMode == QAbstractSpinBox::CorrectToPreviousValue
+&& (state == QValidator::Invalid || !(fieldInfo(currentSectionIndex) & AllowPartial))) {
+setValue(value, ep);
+updateTimeSpec();
+} else {
+QAbstractSpinBoxPrivate::interpret(ep);
+}
+}
+void QDateTimeEditPrivate::clearCache() const
+{
+QAbstractSpinBoxPrivate::clearCache();
+cachedDay = -1;
+}
+/*!
+Initialize \a option with the values from this QDataTimeEdit. This method
+is useful for subclasses when they need a QStyleOptionSpinBox, but don't want
+to fill in all the information themselves.
+\sa QStyleOption::initFrom()
+*/
+void QDateTimeEdit::initStyleOption(QStyleOptionSpinBox *option) const
+{
+if (!option)
+return;
+Q_D(const QDateTimeEdit);
+QAbstractSpinBox::initStyleOption(option);
+if (d->calendarPopupEnabled()) {
+option->subControls = QStyle::SC_ComboBoxFrame | QStyle::SC_ComboBoxEditField
+| QStyle::SC_ComboBoxArrow;
+if (d->arrowState == QStyle::State_Sunken)
+option->state |= QStyle::State_Sunken;
+else
+option->state &= ~QStyle::State_Sunken;
+}
+}
+void QDateTimeEditPrivate::init(const QVariant &var)
+{
+Q_Q(QDateTimeEdit);
+switch (var.type()) {
+case QVariant::Date:
+value = QDateTime(var.toDate(), QDATETIMEEDIT_TIME_MIN);
+q->setDisplayFormat(defaultDateFormat);
+if (sectionNodes.isEmpty()) // ### safeguard for broken locale
+q->setDisplayFormat(QLatin1String("dd/MM/yyyy"));
+break;
+case QVariant::DateTime:
+value = var;
+q->setDisplayFormat(defaultDateTimeFormat);
+if (sectionNodes.isEmpty()) // ### safeguard for broken locale
+q->setDisplayFormat(QLatin1String("dd/MM/yyyy hh:mm:ss"));
+break;
+case QVariant::Time:
+value = QDateTime(QDATETIMEEDIT_DATE_INITIAL, var.toTime());
+q->setDisplayFormat(defaultTimeFormat);
+if (sectionNodes.isEmpty()) // ### safeguard for broken locale
+q->setDisplayFormat(QLatin1String("hh:mm:ss"));
+break;
+default:
+Q_ASSERT_X(0, "QDateTimeEditPrivate::init", "Internal error");
+break;
+}
+#ifdef QT_KEYPAD_NAVIGATION
+if (QApplication::keypadNavigationEnabled())
+q->setCalendarPopup(true);
+#endif
+updateTimeSpec();
+q->setInputMethodHints(Qt::ImhPreferNumbers);
+setLayoutItemMargins(QStyle::SE_DateTimeEditLayoutItem);
+}
+void QDateTimeEditPrivate::_q_resetButton()
+{
+updateArrow(QStyle::State_None);
+}
+void QDateTimeEditPrivate::updateArrow(QStyle::StateFlag state)
+{
+Q_Q(QDateTimeEdit);
+if (arrowState == state)
+return;
+arrowState = state;
+if (arrowState != QStyle::State_None)
+buttonState |= Mouse;
+else {
+buttonState = 0;
+hoverControl = QStyle::SC_ComboBoxFrame;
+}
+q->update();
+}
+/*!
+\internal
+Returns the hover control at \a pos.
+This will update the hoverRect and hoverControl.
+*/
+QStyle::SubControl QDateTimeEditPrivate::newHoverControl(const QPoint &pos)
+{
+if (!calendarPopupEnabled())
+return QAbstractSpinBoxPrivate::newHoverControl(pos);
+Q_Q(QDateTimeEdit);
+QStyleOptionComboBox optCombo;
+optCombo.init(q);
+optCombo.editable = true;
+optCombo.subControls = QStyle::SC_All;
+hoverControl = q->style()->hitTestComplexControl(QStyle::CC_ComboBox, &optCombo, pos, q);
+return hoverControl;
+}
+void QDateTimeEditPrivate::updateEditFieldGeometry()
+{
+if (!calendarPopupEnabled()) {
+QAbstractSpinBoxPrivate::updateEditFieldGeometry();
+return;
+}
+Q_Q(QDateTimeEdit);
+QStyleOptionComboBox optCombo;
+optCombo.init(q);
+optCombo.editable = true;
+optCombo.subControls = QStyle::SC_ComboBoxEditField;
+edit->setGeometry(q->style()->subControlRect(QStyle::CC_ComboBox, &optCombo,
+QStyle::SC_ComboBoxEditField, q));
+}
+QVariant QDateTimeEditPrivate::getZeroVariant() const
+{
+Q_ASSERT(type == QVariant::DateTime);
+return QDateTime(QDATETIMEEDIT_DATE_INITIAL, QTime(), spec);
+}
+void QDateTimeEditPrivate::setRange(const QVariant &min, const QVariant &max)
+{
+QAbstractSpinBoxPrivate::setRange(min, max);
+syncCalendarWidget();
+}
+bool QDateTimeEditPrivate::isSeparatorKey(const QKeyEvent *ke) const
+{
+if (!ke->text().isEmpty() && currentSectionIndex + 1 < sectionNodes.size() && currentSectionIndex >= 0) {
+if (fieldInfo(currentSectionIndex) & Numeric) {
+if (ke->text().at(0).isNumber())
+return false;
+} else if (ke->text().at(0).isLetterOrNumber()) {
+return false;
+}
+return separators.at(currentSectionIndex + 1).contains(ke->text());
+}
+return false;
+}
+void QDateTimeEditPrivate::initCalendarPopup(QCalendarWidget *cw)
+{
+Q_Q(QDateTimeEdit);
+if (!monthCalendar) {
+monthCalendar = new QCalendarPopup(q, cw);
+monthCalendar->setObjectName(QLatin1String("qt_datetimedit_calendar"));
+QObject::connect(monthCalendar, SIGNAL(newDateSelected(QDate)), q, SLOT(setDate(QDate)));
+QObject::connect(monthCalendar, SIGNAL(hidingCalendar(QDate)), q, SLOT(setDate(QDate)));
+QObject::connect(monthCalendar, SIGNAL(activated(QDate)), q, SLOT(setDate(QDate)));
+QObject::connect(monthCalendar, SIGNAL(activated(QDate)), monthCalendar, SLOT(close()));
+QObject::connect(monthCalendar, SIGNAL(resetButton()), q, SLOT(_q_resetButton()));
+} else if (cw) {
+monthCalendar->setCalendarWidget(cw);
+}
+syncCalendarWidget();
+}
+void QDateTimeEditPrivate::positionCalendarPopup()
+{
+Q_Q(QDateTimeEdit);
+QPoint pos = (q->layoutDirection() == Qt::RightToLeft) ? q->rect().bottomRight() : q->rect().bottomLeft();
+QPoint pos2 = (q->layoutDirection() == Qt::RightToLeft) ? q->rect().topRight() : q->rect().topLeft();
+pos = q->mapToGlobal(pos);
+pos2 = q->mapToGlobal(pos2);
+QSize size = monthCalendar->sizeHint();
+QRect screen = QApplication::desktop()->availableGeometry(pos);
+//handle popup falling "off screen"
+if (q->layoutDirection() == Qt::RightToLeft) {
+pos.setX(pos.x()-size.width());
+pos2.setX(pos2.x()-size.width());
+if (pos.x() < screen.left())
+pos.setX(qMax(pos.x(), screen.left()));
+else if (pos.x()+size.width() > screen.right())
+pos.setX(qMax(pos.x()-size.width(), screen.right()-size.width()));
+} else {
+if (pos.x()+size.width() > screen.right())
+pos.setX(screen.right()-size.width());
+pos.setX(qMax(pos.x(), screen.left()));
+}
+if (pos.y() + size.height() > screen.bottom())
+pos.setY(pos2.y() - size.height());
+else if (pos.y() < screen.top())
+pos.setY(screen.top());
+if (pos.y() < screen.top())
+pos.setY(screen.top());
+if (pos.y()+size.height() > screen.bottom())
+pos.setY(screen.bottom()-size.height());
+monthCalendar->move(pos);
+}
+bool QDateTimeEditPrivate::calendarPopupEnabled() const
+{
+return (calendarPopup && (sections & (DateSectionMask)));
+}
+void QDateTimeEditPrivate::syncCalendarWidget()
+{
+Q_Q(QDateTimeEdit);
+if (monthCalendar) {
+monthCalendar->setDateRange(q->minimumDate(), q->maximumDate());
+monthCalendar->setDate(q->date());
+}
+}
+QCalendarPopup::QCalendarPopup(QWidget * parent, QCalendarWidget *cw)
+: QWidget(parent, Qt::Popup), calendar(0)
+{
+setAttribute(Qt::WA_WindowPropagation);
+dateChanged = false;
+if (!cw) {
+cw = new QCalendarWidget(this);
+cw->setVerticalHeaderFormat(QCalendarWidget::NoVerticalHeader);
+#ifdef QT_KEYPAD_NAVIGATION
+if (QApplication::keypadNavigationEnabled())
+cw->setHorizontalHeaderFormat(QCalendarWidget::SingleLetterDayNames);
+#endif
+}
+setCalendarWidget(cw);
+}
+void QCalendarPopup::setCalendarWidget(QCalendarWidget *cw)
+{
+Q_ASSERT(cw);
+QVBoxLayout *widgetLayout = qobject_cast<QVBoxLayout*>(layout());
+if (!widgetLayout) {
+widgetLayout = new QVBoxLayout(this);
+widgetLayout->setMargin(0);
+widgetLayout->setSpacing(0);
+}
+delete calendar;
+calendar = cw;
+widgetLayout->addWidget(calendar);
+connect(calendar, SIGNAL(activated(QDate)), this, SLOT(dateSelected(QDate)));
+connect(calendar, SIGNAL(clicked(QDate)), this, SLOT(dateSelected(QDate)));
+connect(calendar, SIGNAL(selectionChanged()), this, SLOT(dateSelectionChanged()));
+calendar->setFocus();
+}
+void QCalendarPopup::setDate(const QDate &date)
+{
+oldDate = date;
+calendar->setSelectedDate(date);
+}
+void QCalendarPopup::setDateRange(const QDate &min, const QDate &max)
+{
+calendar->setMinimumDate(min);
+calendar->setMaximumDate(max);
+}
+void QCalendarPopup::mousePressEvent(QMouseEvent *event)
+{
+QDateTimeEdit *dateTime = qobject_cast<QDateTimeEdit *>(parentWidget());
+if (dateTime) {
+QStyleOptionComboBox opt;
+opt.init(dateTime);
+QRect arrowRect = dateTime->style()->subControlRect(QStyle::CC_ComboBox, &opt,
+QStyle::SC_ComboBoxArrow, dateTime);
+arrowRect.moveTo(dateTime->mapToGlobal(arrowRect .topLeft()));
+if (arrowRect.contains(event->globalPos()) || rect().contains(event->pos()))
+setAttribute(Qt::WA_NoMouseReplay);
+}
+QWidget::mousePressEvent(event);
+}
+void QCalendarPopup::mouseReleaseEvent(QMouseEvent*)
+{
+emit resetButton();
+}
+bool QCalendarPopup::event(QEvent *event)
+{
+if (event->type() == QEvent::KeyPress) {
+QKeyEvent *keyEvent = static_cast<QKeyEvent*>(event);
+if (keyEvent->key()== Qt::Key_Escape)
+dateChanged = false;
+}
+return QWidget::event(event);
+}
+void QCalendarPopup::dateSelectionChanged()
+{
+dateChanged = true;
+emit newDateSelected(calendar->selectedDate());
+}
+void QCalendarPopup::dateSelected(const QDate &date)
+{
+dateChanged = true;
+emit activated(date);
+close();
+}
+void QCalendarPopup::hideEvent(QHideEvent *)
+{
+emit resetButton();
+if (!dateChanged)
+emit hidingCalendar(oldDate);
+}
+QT_END_NAMESPACE
+#include "moc_qdatetimeedit.cpp"
+#endif // QT_NO_DATETIMEEDIT

changeset 0	1918ee327afb
child 4	3b1da2848fc7