QDateTimeEdit Class▲
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Header: QDateTimeEdit
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qmake: QT += widgets
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Inherits: QAbstractSpinBox
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Group: QDateTimeEdit is part of basicwidgets
Detailed Description▲
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().
QDateTimeEdit *dateEdit = new QDateTimeEdit(QDate::currentDate());
dateEdit->setMinimumDate(QDate::currentDate().addDays(-365));
dateEdit->setMaximumDate(QDate::currentDate().addDays(365));
dateEdit->setDisplayFormat("yyyy.MM.dd");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. 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().
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().
See Also▲
Member Type Documentation▲
enum QDateTimeEdit::Section▲
flags QDateTimeEdit::Sections
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Constant |
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|---|---|
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QDateTimeEdit::NoSection |
0x0000 |
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QDateTimeEdit::AmPmSection |
0x0001 |
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QDateTimeEdit::MSecSection |
0x0002 |
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QDateTimeEdit::SecondSection |
0x0004 |
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QDateTimeEdit::MinuteSection |
0x0008 |
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QDateTimeEdit::HourSection |
0x0010 |
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QDateTimeEdit::DaySection |
0x0100 |
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QDateTimeEdit::MonthSection |
0x0200 |
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QDateTimeEdit::YearSection |
0x0400 |
The Sections type is a typedef for QFlags<Section>. It stores an OR combination of Section values.
Property Documentation▲
[since 4.2] calendarPopup : bool▲
This property holds the current calendar pop-up show mode.
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.
This property was introduced in Qt 4.2.
Access functions:
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bool calendarPopup() const
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void setCalendarPopup(bool enable)
See Also▲
See also setDisplayFormat()
currentSection : Section▲
This property holds the current section of the spinbox setCurrentSection()
Access functions:
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currentSection() const
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void setCurrentSection( section)
[since 4.3] currentSectionIndex : int▲
This property holds 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, and so on.
setCurrentSection()
This property was introduced in Qt 4.3.
Access functions:
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int currentSectionIndex() const
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void setCurrentSectionIndex(int index)
See Also▲
See also currentSection()
date : QDate▲
This property holds the QDate that is set in the widget
By default, this property contains a date that refers to January 1, 2000.
Access functions:
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date() const
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void setDate(const &date)
Notifier signal:
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void dateChanged(const &date)
See Also▲
dateTime : QDateTime▲
This property holds 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.
Access functions:
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dateTime() const
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void setDateTime(const &dateTime)
Notifier signal:
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void dateTimeChanged(const &datetime)
See Also▲
displayFormat : QString▲
This property holds the format used to display the time/date of the date time edit
This format is described in QDateTime::toString() and QDateTime::fromString()
Example format strings (assuming that the date is 2nd of July 1969):
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Format |
Result |
|---|---|
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dd.MM.yyyy |
02.07.1969 |
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MMM d yy |
Jul 2 69 |
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MMMM d yy |
July 2 69 |
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.
Access functions:
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displayFormat() const
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void setDisplayFormat(const &format)
See Also▲
See also QDateTime::toString(), displayedSections()
[read-only] displayedSections : const Sections▲
This property holds the currently displayed fields of the date time edit
Returns a bit set of the displayed sections for this format. setDisplayFormat(), displayFormat()
Access functions:
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displayedSections() const
maximumDate : QDate▲
This property holds the maximum date of the date time edit
When setting this property the 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, 9999.
Access functions:
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maximumDate() const
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void setMaximumDate(const &max)
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void clearMaximumDate()
See Also▲
See also minimumDate, minimumTime, maximumTime, setDateRange()
[since 4.4] maximumDateTime : QDateTime▲
This property holds the maximum datetime of the date time edit
When setting this property the 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, 9999 and a time of 23:59:59 and 999 milliseconds.
This property was introduced in Qt 4.4.
Access functions:
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maximumDateTime() const
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void setMaximumDateTime(const &dt)
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void clearMaximumDateTime()
See Also▲
See also minimumDateTime(), minimumTime(), maximumTime(), minimumDate(), maximumDate(), setDateTimeRange(), setDateRange(), setTimeRange(), clearMinimumDateTime(), clearMinimumDate(), clearMaximumDate(), clearMinimumTime(), clearMaximumTime()
maximumTime : QTime▲
This property holds the maximum time of the date time edit
When setting this property, the 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.
Access functions:
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maximumTime() const
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void setMaximumTime(const &max)
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void clearMaximumTime()
See Also▲
See also minimumTime, minimumDate, maximumDate, setTimeRange()
minimumDate : QDate▲
This property holds the minimum date of the date time edit
When setting this property the 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.
Access functions:
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minimumDate() const
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void setMinimumDate(const &min)
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void clearMinimumDate()
See Also▲
See also minimumTime(), maximumTime(), setDateRange()
[since 4.4] minimumDateTime : QDateTime▲
This property holds the minimum datetime of the date time edit
When setting this property the 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.
This property was introduced in Qt 4.4.
Access functions:
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minimumDateTime() const
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void setMinimumDateTime(const &dt)
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void clearMinimumDateTime()
See Also▲
See also maximumDateTime(), minimumTime(), maximumTime(), minimumDate(), maximumDate(), setDateTimeRange(), setDateRange(), setTimeRange(), clearMaximumDateTime(), clearMinimumDate(), clearMaximumDate(), clearMinimumTime(), clearMaximumTime()
minimumTime : QTime▲
This property holds the minimum time of the date time edit
When setting this property the 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.
Access functions:
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minimumTime() const
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void setMinimumTime(const &min)
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void clearMinimumTime()
See Also▲
See also maximumTime, minimumDate, maximumDate, setTimeRange()
[read-only, since 4.3] sectionCount : const int▲
This property holds the number of sections displayed. If the format is 'yyyy/yy/yyyy', sectionCount returns 3
This property was introduced in Qt 4.3.
Access functions:
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int sectionCount() const
time : QTime▲
This property holds the QTime that is set in the widget
By default, this property contains a time of 00:00:00 and 0 milliseconds.
Access functions:
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time() const
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void setTime(const &time)
Notifier signal:
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void timeChanged(const &time)
See Also▲
[since 4.4] timeSpec : Qt::TimeSpec▲
This property holds the current timespec used by the date time edit.
This property was introduced in Qt 4.4.
Access functions:
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timeSpec() const
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void setTimeSpec( spec)
Member Function Documentation▲
[explicit] QDateTimeEdit::QDateTimeEdit(QWidget *parent = nullptr)▲
Constructs an empty date time editor with a parent.
[explicit] QDateTimeEdit::QDateTimeEdit(const QDateTime &datetime, QWidget *parent = nullptr)▲
Constructs an empty date time editor with a parent. The value is set to datetime.
[explicit] QDateTimeEdit::QDateTimeEdit(const QDate &date, QWidget *parent = nullptr)▲
Constructs an empty date time editor with a parent. The value is set to date.
[explicit] QDateTimeEdit::QDateTimeEdit(const QTime &time, QWidget *parent = nullptr)▲
Constructs an empty date time editor with a parent. The value is set to time.
[virtual] QDateTimeEdit::~QDateTimeEdit()▲
Destructor.
[since 4.4] QCalendarWidget *QDateTimeEdit::calendarWidget() const▲
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.
This function was introduced in Qt 4.4.
See Also▲
See also setCalendarWidget()
[override virtual] void QDateTimeEdit::clear()▲
Reimplements: QAbstractSpinBox::clear().
QDate QDateTimeEdit::date() const▲
Returns the date of the date time edit.
Getter function for property date.
See Also▲
See also setDate()
void QDateTimeEdit::dateChanged(const QDate &date)▲
This signal is emitted whenever the date is changed. The new date is passed in date.
Notifier signal for property date.
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 datetime.
Notifier signal for property dateTime.
[virtual protected] QDateTime QDateTimeEdit::dateTimeFromText(const QString &text) const▲
Returns an appropriate datetime for the given text.
This virtual function is used by the datetime edit whenever it needs to interpret text entered by the user as a value.
See Also▲
See also textFromDateTime(), validate()
[override virtual] bool QDateTimeEdit::event(QEvent *event)▲
Reimplements: QAbstractSpinBox::event(QEvent *event).
[override virtual protected] void QDateTimeEdit::fixup(QString &input) const▲
Reimplements: QAbstractSpinBox::fixup(QString &input) const.
[override virtual protected] void QDateTimeEdit::focusInEvent(QFocusEvent *event)▲
Reimplements: QAbstractSpinBox::focusInEvent(QFocusEvent *event).
[override virtual protected] bool QDateTimeEdit::focusNextPrevChild(bool next)▲
Reimplements: QWidget::focusNextPrevChild(bool next).
[protected] void QDateTimeEdit::initStyleOption(QStyleOptionSpinBox *option) const▲
Initialize 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.
See Also▲
See also QStyleOption::initFrom()
[override virtual protected] void QDateTimeEdit::keyPressEvent(QKeyEvent *event)▲
Reimplements: QAbstractSpinBox::keyPressEvent(QKeyEvent *event).
[override virtual protected] void QDateTimeEdit::mousePressEvent(QMouseEvent *event)▲
Reimplements: QAbstractSpinBox::mousePressEvent(QMouseEvent *event).
[override virtual protected] void QDateTimeEdit::paintEvent(QPaintEvent *event)▲
Reimplements: QAbstractSpinBox::paintEvent(QPaintEvent *event).
[since 4.3] QDateTimeEdit::Section QDateTimeEdit::sectionAt(int index) const▲
Returns the Section at index.
If the format is 'yyyy/MM/dd', sectionAt(0) returns YearSection, sectionAt(1) returns MonthSection, and sectionAt(2) returns YearSection,
This function was introduced in Qt 4.3.
QString QDateTimeEdit::sectionText(QDateTimeEdit::Section section) const▲
[since 4.4] void QDateTimeEdit::setCalendarWidget(QCalendarWidget *calendarWidget)▲
Sets the given calendarWidget as the widget to be used for the calendar pop-up. The editor does not automatically take ownership of the calendar widget.
calendarPopup must be set to true before setting the calendar widget.
This function was introduced in Qt 4.4.
See Also▲
See also calendarWidget(), calendarPopup
void QDateTimeEdit::setDateRange(const QDate &min, const QDate &max)▲
Convenience function to set minimum and maximum date with one function call.
setDateRange(min, max);is analogous to:
setMinimumDate(min);
setMaximumDate(max);If either min or max are not valid, this function does nothing.
See Also▲
See also setMinimumDate(), maximumDate(), setMaximumDate(), clearMinimumDate(), setMinimumTime(), maximumTime(), setMaximumTime(), clearMinimumTime(), QDate::isValid()
[since 4.4] void QDateTimeEdit::setDateTimeRange(const QDateTime &min, const QDateTime &max)▲
Convenience function to set minimum and maximum date time with one function call.
setDateTimeRange(min, max);is analogous to:
setMinimumDateTime(min);
setMaximumDateTime(max);If either min or max are not valid, this function does nothing.
This function was introduced in Qt 4.4.
See Also▲
See also setMinimumDate(), maximumDate(), setMaximumDate(), clearMinimumDate(), setMinimumTime(), maximumTime(), setMaximumTime(), clearMinimumTime(), QDateTime::isValid()
[since 4.2] void QDateTimeEdit::setSelectedSection(QDateTimeEdit::Section section)▲
Selects section. If section doesn't exist in the currently displayed sections, this function does nothing. If 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.
This function was introduced in Qt 4.2.
See Also▲
See also currentSection()
void QDateTimeEdit::setTimeRange(const QTime &min, const QTime &max)▲
Convenience function to set minimum and maximum time with one function call.
setTimeRange(min, max);is analogous to:
setMinimumTime(min);
setMaximumTime(max);If either min or max are not valid, this function does nothing.
See Also▲
See also setMinimumDate(), maximumDate(), setMaximumDate(), clearMinimumDate(), setMinimumTime(), maximumTime(), setMaximumTime(), clearMinimumTime(), QTime::isValid()
[override virtual] QSize QDateTimeEdit::sizeHint() const▲
Reimplements: QAbstractSpinBox::sizeHint() const.
[override virtual] void QDateTimeEdit::stepBy(int steps)▲
Reimplements: QAbstractSpinBox::stepBy(int steps).
[override virtual protected] QAbstractSpinBox::StepEnabled QDateTimeEdit::stepEnabled() const▲
Reimplements: QAbstractSpinBox::stepEnabled() const.
[virtual protected] QString QDateTimeEdit::textFromDateTime(const QDateTime &dateTime) const▲
This virtual function is used by the date time edit whenever it needs to display dateTime.
If you reimplement this, you may also need to reimplement validate().
See Also▲
See also dateTimeFromText(), validate()
QTime QDateTimeEdit::time() const▲
Returns the time of the date time edit.
Getter function for property time.
See Also▲
See also setTime()
void QDateTimeEdit::timeChanged(const QTime &time)▲
This signal is emitted whenever the time is changed. The new time is passed in time.
Notifier signal for property time.
[override virtual protected] QValidator::State QDateTimeEdit::validate(QString &text, int &pos) const▲
Reimplements: QAbstractSpinBox::validate(QString &input, int &pos) const.
[override virtual protected] void QDateTimeEdit::wheelEvent(QWheelEvent *event)▲
Reimplements: QAbstractSpinBox::wheelEvent(QWheelEvent *event).