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## com.trolltech.qt.gui
Class QCalendarWidget

    java.lang.Object
      com.trolltech.qt.internal.QSignalEmitterInternal
          com.trolltech.qt.QSignalEmitter
              com.trolltech.qt.QtJambiObject
                  com.trolltech.qt.core.QObject
                      com.trolltech.qt.gui.QWidget
                          com.trolltech.qt.gui.QCalendarWidget

All Implemented Interfaces:
  QPaintDeviceInterface, QtJambiInterface

    public class QCalendarWidget

extends QWidget

The `QCalendarWidget` class provides a monthly based calendar widget allowing the user to select a date.

The widget is initialized with the current month and year, but `QCalendarWidget` provides several public slots to change the year and month that is shown. The currently displayed month and year can be retrieved using the currentPageMonth() and currentPageYear() functions, respectively.

By default, today's date is selected, and the user can select a date using both mouse and keyboard. The currently selected date can be retrieved using the `selectedDate()` function. It is possible to constrain the user selection to a given date range by setting the `minimumDate` and `maximumDate` properties. Alternatively, both properties can be set in one go using the `setDateRange()` convenience slot. Set the `selectionMode` property to `NoSelection` to prohibit the user from selecting at all. Note that a date also can be selected programmatically using the `setSelectedDate()` slot.

A newly created calendar widget uses abbreviated day names, and both Saturdays and Sundays are marked in red. The calendar grid is not visible. The week numbers are displayed, and the first column day is Sunday.

The notation of the days can be altered to a single letter abbreviations ("M" for "Monday") by setting the `horizontalHeaderFormat` property to `QCalendarWidget::SingleLetterDayNames` . Setting the same property to `QCalendarWidget::LongDayNames` makes the header display the complete day names. The week numbers can be removed by setting the `verticalHeaderFormat` property to `QCalendarWidget::NoVerticalHeader` . The calendar grid can be turned on by setting the `gridVisible` property to true using the `setGridVisible()` function:

                QCalendarWidget calendar = new QCalendarWidget();
                calendar.setGridVisible(true);

Finally, the day in the first column can be altered using the `setFirstDayOfWeek()` function.

The `QCalendarWidget` class also provides three signals, `selectionChanged()` , `activated()` and `currentPageChanged()` making it possible to respond to user interaction.

The rendering of the headers, weekdays or single days can be largely customized by setting `QTextCharFormat`'s for some special weekday, a special date or for the rendering of the headers.

Only a subset of the properties in `QTextCharFormat` are used by the calendar widget. Currently, the foreground, background and font properties are used to determine the rendering of individual cells in the widget.

See also:
  `QDate`, `QDateEdit`, and `QTextCharFormat`.

Nested Class Summary
`static class` | `QCalendarWidget.HorizontalHeaderFormat` This enum type defines the various formats the horizontal header can display.
`static class` | `QCalendarWidget.SelectionMode` This enum describes the types of selection offered to the user for selecting dates in the calendar.
`static class` | `QCalendarWidget.VerticalHeaderFormat` This enum type defines the various formats the vertical header can display.

Nested classes/interfaces inherited from class com.trolltech.qt.gui.QWidget
`QWidget.RenderFlag, QWidget.RenderFlags`

Nested classes/interfaces inherited from class com.trolltech.qt.QSignalEmitter
`QSignalEmitter.AbstractSignal, QSignalEmitter.Signal0, QSignalEmitter.Signal1, QSignalEmitter.Signal2, QSignalEmitter.Signal3, QSignalEmitter.Signal4, QSignalEmitter.Signal5, QSignalEmitter.Signal6, QSignalEmitter.Signal7, QSignalEmitter.Signal8, QSignalEmitter.Signal9`

Nested classes/interfaces inherited from class com.trolltech.qt.internal.QSignalEmitterInternal
`com.trolltech.qt.internal.QSignalEmitterInternal.AbstractSignalInternal`

Field Summary
`QSignalEmitter.Signal1` | `activated` This signal takes 1 generic argument(s).
`QSignalEmitter.Signal1` | `clicked` This signal takes 1 generic argument(s).
`QSignalEmitter.Signal2` | `currentPageChanged` This signal takes 2 generic argument(s).
`QSignalEmitter.Signal0` | `selectionChanged` This signal is emitted when the currently selected date is changed.

Fields inherited from class com.trolltech.qt.gui.QWidget
`customContextMenuRequested`

Fields inherited from class com.trolltech.qt.internal.QSignalEmitterInternal
`currentSender`

Constructor Summary
`QCalendarWidget()` Constructs a calendar widget with the given `parent`.
`QCalendarWidget(QWidget parent)` Constructs a calendar widget with the given `parent`.

Method Summary
`int` | `dateEditAcceptDelay()` This property holds the time an inactive date edit is shown before its contents are accepted.
`java.util.SortedMap` | `dateTextFormat()` Returns a QMap from `QDate` to `QTextCharFormat` showing all dates that use a special format that alters their rendering.
`QTextCharFormat` | `dateTextFormat(QDate date)` Returns a `QTextCharFormat` for `date`.
`Qt.DayOfWeek` | `firstDayOfWeek()` This property holds a value identifying the day displayed in the first column.
`QTextCharFormat` | `headerTextFormat()` Returns the text char format for rendering the header.
`QCalendarWidget.HorizontalHeaderFormat` | `horizontalHeaderFormat()` This property holds the format of the horizontal header.
`boolean` | `isDateEditEnabled()` This property holds whether the date edit popup is enabled.
`boolean` | `isGridVisible()` This property holds whether the table grid is displayed.
`boolean` | `isNavigationBarVisible()` This property holds whether the navigation bar is shown or not.
`QDate` | `maximumDate()` This property holds the maximum date of the currently specified date range.
`QDate` | `minimumDate()` This property holds the minimum date of the currently specified date range.
`int` | `monthShown()` Returns the currently displayed month.
`protected void` | `paintCell(QPainter painter, QRect rect, QDate date)` Paints the cell specified by the given `date`, using the given `painter` and `rect`.
`QDate` | `selectedDate()` This property holds the currently selected date.
`QCalendarWidget.SelectionMode` | `selectionMode()` This property holds the type of selection the user can make in the calendar.
`void` | `setCurrentPage(int year, int month)` Displays the given `month` of the given `year` without changing the selected date.
`void` | `setDateEditAcceptDelay(int delay)` This property holds the time an inactive date edit is shown before its contents are accepted.
`void` | `setDateEditEnabled(boolean enable)` This property holds whether the date edit popup is enabled.
`void` | `setDateRange(QDate min, QDate max)` Defines a date range by setting the `minimumDate` and `maximumDate` properties.
`void` | `setDateTextFormat(QDate date, QTextCharFormat format)` Sets the format used to render the given `date` to that specified by `format`.
`void` | `setFirstDayOfWeek(Qt.DayOfWeek dayOfWeek)` This property holds a value identifying the day displayed in the first column.
`void` | `setGridVisible(boolean show)` This property holds whether the table grid is displayed.
`void` | `setHeaderTextFormat(QTextCharFormat format)` Sets the text char format for rendering the header to `format`.
`void` | `setHorizontalHeaderFormat(QCalendarWidget.HorizontalHeaderFormat format)` This property holds the format of the horizontal header.
`void` | `setMaximumDate(QDate date)` This property holds the maximum date of the currently specified date range.
`void` | `setMinimumDate(QDate date)` This property holds the minimum date of the currently specified date range.
`void` | `setNavigationBarVisible(boolean visible)` This property holds whether the navigation bar is shown or not.
`void` | `setSelectedDate(QDate date)` This property holds the currently selected date.
`void` | `setSelectionMode(QCalendarWidget.SelectionMode mode)` This property holds the type of selection the user can make in the calendar.
`void` | `setVerticalHeaderFormat(QCalendarWidget.VerticalHeaderFormat format)` This property holds the format of the vertical header.
`void` | `setWeekdayTextFormat(Qt.DayOfWeek dayOfWeek, QTextCharFormat format)` Sets the text char format for rendering of day in the week `dayOfWeek` to `format`.
`void` | `showNextMonth()` Shows the next month relative to the currently displayed month.
`void` | `showNextYear()` Shows the currently displayed month in the next year relative to the currently displayed year.
`void` | `showPreviousMonth()` Shows the previous month relative to the currently displayed month.
`void` | `showPreviousYear()` Shows the currently displayed month in the previous year relative to the currently displayed year.
`void` | `showSelectedDate()` Shows the month of the selected date.
`void` | `showToday()` Shows the month of the today's date.
`protected void` | `updateCell(QDate date)` Updates the cell specified by the given `date` unless updates are disabled or the cell is hidden.
`protected void` | `updateCells()` Updates all visible cells unless updates are disabled.
`QCalendarWidget.VerticalHeaderFormat` | `verticalHeaderFormat()` This property holds the format of the vertical header.
`QTextCharFormat` | `weekdayTextFormat(Qt.DayOfWeek dayOfWeek)` Returns the text char format for rendering of day in the week `dayOfWeek`.
`int` | `yearShown()` Returns the year of the currently displayed month.

Methods inherited from class com.trolltech.qt.gui.QWidget
`acceptDrops, accessibleDescription, accessibleName, actionEvent, actions, activateWindow, addAction, addActions, adjustSize, autoFillBackground, backgroundRole, baseSize, changeEvent, childAt, childAt, childrenRect, childrenRegion, clearFocus, clearMask, close, closeEvent, contentsRect, contextMenuEvent, contextMenuPolicy, cursor, depth, destroy, destroy, destroy, dragEnterEvent, dragLeaveEvent, dragMoveEvent, dropEvent, effectiveWinId, ensurePolished, enterEvent, focusInEvent, focusNextChild, focusNextPrevChild, focusOutEvent, focusPolicy, focusPreviousChild, focusProxy, focusWidget, font, fontInfo, fontMetrics, foregroundRole, frameGeometry, frameSize, geometry, getContentsMargins, grabKeyboard, grabMouse, grabMouse, grabShortcut, grabShortcut, hasFocus, hasMouseTracking, height, heightForWidth, heightMM, hide, hideEvent, inputContext, inputMethodEvent, inputMethodQuery, insertAction, insertActions, isActiveWindow, isAncestorOf, isEnabled, isEnabledTo, isFullScreen, isHidden, isMaximized, isMinimized, isModal, isVisible, isVisibleTo, isWindow, isWindowModified, keyboardGrabber, keyPressEvent, keyReleaseEvent, languageChange, layout, layoutDirection, leaveEvent, locale, logicalDpiX, logicalDpiY, lower, mapFrom, mapFromGlobal, mapFromParent, mapTo, mapToGlobal, mapToParent, mask, maximumHeight, maximumSize, maximumWidth, metric, minimumHeight, minimumSize, minimumSizeHint, minimumWidth, mouseDoubleClickEvent, mouseGrabber, mouseMoveEvent, mousePressEvent, mouseReleaseEvent, move, move, moveEvent, nativeParentWidget, nextInFocusChain, normalGeometry, numColors, overrideWindowFlags, overrideWindowFlags, paintEngine, paintEvent, paintingActive, palette, parentWidget, physicalDpiX, physicalDpiY, pos, raise, rect, releaseKeyboard, releaseMouse, releaseShortcut, removeAction, render, render, render, render, render, render, render, render, render, repaint, repaint, repaint, repaint, resetInputContext, resize, resize, resizeEvent, restoreGeometry, saveGeometry, scroll, scroll, setAcceptDrops, setAccessibleDescription, setAccessibleName, setAttribute, setAttribute, setAutoFillBackground, setBackgroundRole, setBaseSize, setBaseSize, setContentsMargins, setContentsMargins, setContextMenuPolicy, setCursor, setDisabled, setEnabled, setFixedHeight, setFixedSize, setFixedSize, setFixedWidth, setFocus, setFocus, setFocusPolicy, setFocusProxy, setFont, setForegroundRole, setGeometry, setGeometry, setHidden, setInputContext, setLayout, setLayoutDirection, setLocale, setMask, setMask, setMaximumHeight, setMaximumSize, setMaximumSize, setMaximumWidth, setMinimumHeight, setMinimumSize, setMinimumSize, setMinimumWidth, setMouseTracking, setPalette, setParent, setParent, setParent, setShortcutAutoRepeat, setShortcutAutoRepeat, setShortcutEnabled, setShortcutEnabled, setSizeIncrement, setSizeIncrement, setSizePolicy, setSizePolicy, setStatusTip, setStyle, setStyleSheet, setTabOrder, setToolTip, setUpdatesEnabled, setVisible, setWhatsThis, setWindowFilePath, setWindowFlags, setWindowFlags, setWindowIcon, setWindowIconText, setWindowModality, setWindowModified, setWindowOpacity, setWindowRole, setWindowState, setWindowState, setWindowTitle, show, showEvent, showFullScreen, showMaximized, showMinimized, showNormal, size, sizeHint, sizeIncrement, sizePolicy, stackUnder, statusTip, style, styleSheet, tabletEvent, testAttribute, toolTip, underMouse, unsetCursor, unsetLayoutDirection, unsetLocale, update, update, update, update, updateGeometry, updateMicroFocus, updatesEnabled, visibleRegion, whatsThis, wheelEvent, width, widthMM, window, windowFilePath, windowFlags, windowIcon, windowIconText, windowModality, windowOpacity, windowRole, windowState, windowTitle, windowType, winId, x, y`

Methods inherited from class com.trolltech.qt.core.QObject
`childEvent, children, connectSlotsByName, customEvent, disposeLater, dumpObjectInfo, dumpObjectTree, dynamicPropertyNames, event, eventFilter, findChild, findChild, findChild, findChildren, findChildren, findChildren, findChildren, indexOfProperty, installEventFilter, isWidgetType, killTimer, moveToThread, objectName, parent, properties, property, removeEventFilter, setObjectName, setParent, setProperty, startTimer, timerEvent, toString, userProperty`

Methods inherited from class com.trolltech.qt.QtJambiObject
`dispose, disposed, equals, finalize, reassignNativeResources, tr, tr, tr`

Methods inherited from class com.trolltech.qt.QSignalEmitter
`blockSignals, disconnect, disconnect, signalsBlocked, signalSender, thread`

Methods inherited from class com.trolltech.qt.internal.QSignalEmitterInternal
`__qt_signalInitialization`

Methods inherited from class java.lang.Object
`clone, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Methods inherited from interface com.trolltech.qt.QtJambiInterface
`disableGarbageCollection, nativeId, nativePointer, reenableGarbageCollection, setJavaOwnership`

Field Detail

### activated

    public final QSignalEmitter.Signal1 activated

  This signal takes 1 generic argument(s). We list their type and the name they go by in the description of this signal. <com.trolltech.qt.core.QDate(named: date)>:

  This signal is emitted whenever the user presses the Return or Enter key or double-clicks a `date` in the calendar widget.

### clicked

    public final QSignalEmitter.Signal1 clicked

  This signal takes 1 generic argument(s). We list their type and the name they go by in the description of this signal. <com.trolltech.qt.core.QDate(named: date)>:

  This signal is emitted when a mouse button is clicked. The date the mouse was clicked on is specified by `date`. The signal is only emitted when clicked on a valid date.

### currentPageChanged

    public final QSignalEmitter.Signal2 currentPageChanged

  This signal takes 2 generic argument(s). We list their type and the name they go by in the description of this signal. <java.lang.Integer(named: year), java.lang.Integer(named: month)>:

  This signal is emitted when the currently shown month is changed. The new `year` and `month` are passed as parameters.

See also:
  `setCurrentPage()`.

### selectionChanged

    public final QSignalEmitter.Signal0 selectionChanged

  This signal is emitted when the currently selected date is changed.

  The currently selected date can be changed by the user using the mouse or keyboard, or by the programmer using `setSelectedDate()`.

See also:
  `selectedDate()`.

Constructor Detail

### QCalendarWidget

    public QCalendarWidget()

  Constructs a calendar widget with the given `parent`.

  The widget is initialized with the current month and year, and the currently selected date is today.

See also:
  `setCurrentPage()`.

### QCalendarWidget

    public QCalendarWidget(QWidget parent)

  Constructs a calendar widget with the given `parent`.

  The widget is initialized with the current month and year, and the currently selected date is today.

See also:
  `setCurrentPage()`.

Method Detail

### dateEditAcceptDelay

    public final int dateEditAcceptDelay()

  This property holds the time an inactive date edit is shown before its contents are accepted. If the calendar widget's `date edit is enabled`, this property specifies the amount of time (in millseconds) that the date edit remains open after the most recent user input. Once this time has elapsed, the date specified in the date edit is accepted and the popup is closed.

  By default, the delay is defined to be 1500 milliseconds (1.5 seconds).

### dateTextFormat

    public final java.util.SortedMap dateTextFormat()

  Returns a QMap from `QDate` to `QTextCharFormat` showing all dates that use a special format that alters their rendering.

See also:
  `setDateTextFormat()`.

### dateTextFormat

    public final QTextCharFormat dateTextFormat(QDate date)

  Returns a `QTextCharFormat` for `date`. The char format can be be empty if the date is not renderd specially.

### firstDayOfWeek

    public final Qt.DayOfWeek firstDayOfWeek()

  This property holds a value identifying the day displayed in the first column. By default, the day displayed in the first column is Sunday

### headerTextFormat

    public final QTextCharFormat headerTextFormat()

  Returns the text char format for rendering the header.

See also:
  `setHeaderTextFormat()`.

### horizontalHeaderFormat

    public final QCalendarWidget.HorizontalHeaderFormat horizontalHeaderFormat()

  This property holds the format of the horizontal header. The default value is `QCalendarWidget::ShortDayNames` .

### isDateEditEnabled

    public final boolean isDateEditEnabled()

  This property holds whether the date edit popup is enabled. If this property is enabled, pressing a non-modifier key will cause a date edit to popup if the calendar widget has focus, allowing the user to specify a date in the form specified by the current locale.

  By default, this property is enabled.

  The date edit is simpler in appearance than `QDateEdit`, but allows the user to navigate between fields using the left and right cursor keys, increment and decrement individual fields using the up and down cursor keys, and enter values directly using the number keys.

See also:
  `QCalendarWidget::dateEditAcceptDelay`.

### isGridVisible

    public final boolean isGridVisible()

  This property holds whether the table grid is displayed.

                  QCalendarWidget calendar = new QCalendarWidget();
                  calendar.setGridVisible(true);

  The default value is false.

### isNavigationBarVisible

    public final boolean isNavigationBarVisible()

  This property holds whether the navigation bar is shown or not. When this property is true (the default), the next month, previous month, month selection, year selection controls are shown on top.

  When the property is set to false, these controls are hidden.

### maximumDate

    public final QDate maximumDate()

  This property holds the maximum date of the currently specified date range. The user will not be able to select a date which is after the currently set maximum date.

          QCalendarWidget calendar = new QCalendarWidget();
          calendar.setGridVisible(true);
          calendar.setMaximumDate(new QDate(2006, 7, 3));

  By default, the maximum date is the last day the `QDate` class can handle.

  When setting a maximum date, the `minimumDate` and `selectedDate` properties are adjusted if the selection range becomes invalid. If the provided date is not a valid `QDate` object, the `setMaximumDate()` function does nothing.

See also:
  `setDateRange()`.

### minimumDate

    public final QDate minimumDate()

  This property holds the minimum date of the currently specified date range. The user will not be able to select a date that is before the currently set minimum date.

          QCalendarWidget calendar = new QCalendarWidget();
          calendar.setGridVisible(true);
          calendar.setMinimumDate(new QDate(2006, 6, 19));

  By default, the minimum date is the earliest date that the `QDate` class can handle.

  When setting a minimum date, the `maximumDate` and `selectedDate` properties are adjusted if the selection range becomes invalid. If the provided date is not a valid `QDate` object, the `setMinimumDate()` function does nothing.

See also:
  `setDateRange()`.

### monthShown

    public final int monthShown()

  Returns the currently displayed month. Months are numbered from 1 to 12.

See also:
  `yearShown()`, and `setCurrentPage()`.

### selectedDate

    public final QDate selectedDate()

  This property holds the currently selected date. The selected date must be within the date range specified by the `minimumDate` and `maximumDate` properties. By default, the selected date is the current date.

See also:
  `setDateRange()`.

### selectionMode

    public final QCalendarWidget.SelectionMode selectionMode()

  This property holds the type of selection the user can make in the calendar. When this property is set to `SingleSelection` , the user can select a date within the minimum and maximum allowed dates, using either the mouse or the keyboard.

  When the property is set to `NoSelection` , the user will be unable to select dates, but they can still be selected programmatically. Note that the date that is selected when the property is set to `NoSelection` will still be the selected date of the calendar.

  The default value is `SingleSelection` .

### setCurrentPage

    public final void setCurrentPage(int year,
                                     int month)

  Displays the given `month` of the given `year` without changing the selected date. Use the `setSelectedDate()` function to alter the selected date.

  The currently displayed month and year can be retrieved using the currentPageMonth() and currentPageYear() functions respectively.

See also:
  `yearShown()`, `monthShown()`, `showPreviousMonth()`, `showNextMonth()`, `showPreviousYear()`, and `showNextYear()`.

### setDateEditAcceptDelay

    public final void setDateEditAcceptDelay(int delay)

  This property holds the time an inactive date edit is shown before its contents are accepted. If the calendar widget's `date edit is enabled`, this property specifies the amount of time (in millseconds) that the date edit remains open after the most recent user input. Once this time has elapsed, the date specified in the date edit is accepted and the popup is closed.

  By default, the delay is defined to be 1500 milliseconds (1.5 seconds).

### setDateEditEnabled

    public final void setDateEditEnabled(boolean enable)

  This property holds whether the date edit popup is enabled. If this property is enabled, pressing a non-modifier key will cause a date edit to popup if the calendar widget has focus, allowing the user to specify a date in the form specified by the current locale.

  By default, this property is enabled.

  The date edit is simpler in appearance than `QDateEdit`, but allows the user to navigate between fields using the left and right cursor keys, increment and decrement individual fields using the up and down cursor keys, and enter values directly using the number keys.

See also:
  `QCalendarWidget::dateEditAcceptDelay`.

### setDateRange

    public final void setDateRange(QDate min,
                                   QDate max)

  Defines a date range by setting the `minimumDate` and `maximumDate` properties.

  The date range restricts the user selection, i.e. the user can only select dates within the specified date range. Note that

              QCalendarWidget calendar = new QCalendarWidget();

              calendar.setDateRange(min, max);

  is analogous to

              QCalendarWidget calendar = new QCalendarWidget();

              calendar.setMinimumDate(min);
              calendar.setMaximumDate(max);

  If either the `min` or `max` parameters are not valid `QDate` objects, this function does nothing.

See also:
  `setMinimumDate()`, and `setMaximumDate()`.

### setDateTextFormat

    public final void setDateTextFormat(QDate date,
                                        QTextCharFormat format)

  Sets the format used to render the given `date` to that specified by `format`.

  If `date` is null, all date formats are cleared.

See also:
  `dateTextFormat()`.

### setFirstDayOfWeek

    public final void setFirstDayOfWeek(Qt.DayOfWeek dayOfWeek)

  This property holds a value identifying the day displayed in the first column. By default, the day displayed in the first column is Sunday

### setGridVisible

    public final void setGridVisible(boolean show)

  This property holds whether the table grid is displayed.

                  QCalendarWidget calendar = new QCalendarWidget();
                  calendar.setGridVisible(true);

  The default value is false.

### setHeaderTextFormat

    public final void setHeaderTextFormat(QTextCharFormat format)

  Sets the text char format for rendering the header to `format`. If you also set a weekday text format, this format's foreground and background color will take precedence over the header's format. The other formatting information will still be decided by the header's format.

See also:
  `headerTextFormat()`.

### setHorizontalHeaderFormat

    public final void setHorizontalHeaderFormat(QCalendarWidget.HorizontalHeaderFormat format)

  This property holds the format of the horizontal header. The default value is `QCalendarWidget::ShortDayNames` .

### setMaximumDate

    public final void setMaximumDate(QDate date)

  This property holds the maximum date of the currently specified date range. The user will not be able to select a date which is after the currently set maximum date.

          QCalendarWidget calendar = new QCalendarWidget();
          calendar.setGridVisible(true);
          calendar.setMaximumDate(new QDate(2006, 7, 3));

  By default, the maximum date is the last day the `QDate` class can handle.

  When setting a maximum date, the `minimumDate` and `selectedDate` properties are adjusted if the selection range becomes invalid. If the provided date is not a valid `QDate` object, the `setMaximumDate()` function does nothing.

See also:
  `setDateRange()`.

### setMinimumDate

    public final void setMinimumDate(QDate date)

  This property holds the minimum date of the currently specified date range. The user will not be able to select a date that is before the currently set minimum date.

          QCalendarWidget calendar = new QCalendarWidget();
          calendar.setGridVisible(true);
          calendar.setMinimumDate(new QDate(2006, 6, 19));

  By default, the minimum date is the earliest date that the `QDate` class can handle.

  When setting a minimum date, the `maximumDate` and `selectedDate` properties are adjusted if the selection range becomes invalid. If the provided date is not a valid `QDate` object, the `setMinimumDate()` function does nothing.

See also:
  `setDateRange()`.

### setNavigationBarVisible

    public final void setNavigationBarVisible(boolean visible)

  This property holds whether the navigation bar is shown or not. When this property is true (the default), the next month, previous month, month selection, year selection controls are shown on top.

  When the property is set to false, these controls are hidden.

### setSelectedDate

    public final void setSelectedDate(QDate date)

  This property holds the currently selected date. The selected date must be within the date range specified by the `minimumDate` and `maximumDate` properties. By default, the selected date is the current date.

See also:
  `setDateRange()`.

### setSelectionMode

    public final void setSelectionMode(QCalendarWidget.SelectionMode mode)

  This property holds the type of selection the user can make in the calendar. When this property is set to `SingleSelection` , the user can select a date within the minimum and maximum allowed dates, using either the mouse or the keyboard.

  When the property is set to `NoSelection` , the user will be unable to select dates, but they can still be selected programmatically. Note that the date that is selected when the property is set to `NoSelection` will still be the selected date of the calendar.

  The default value is `SingleSelection` .

### setVerticalHeaderFormat

    public final void setVerticalHeaderFormat(QCalendarWidget.VerticalHeaderFormat format)

  This property holds the format of the vertical header. The default value is QCalendarWidget::ISOWeekNumber.

### setWeekdayTextFormat

    public final void setWeekdayTextFormat(Qt.DayOfWeek dayOfWeek,
                                           QTextCharFormat format)

  Sets the text char format for rendering of day in the week `dayOfWeek` to `format`. The format will take precedence over the header format in case of foreground and background color. Other text formatting information is taken from the headers format.

See also:
  `weekdayTextFormat()`, and `setHeaderTextFormat()`.

### showNextMonth

    public final void showNextMonth()

  Shows the next month relative to the currently displayed month. Note that the selected date is not changed.

See also:
  `showPreviousMonth()`, `setCurrentPage()`, and `setSelectedDate()`.

### showNextYear

    public final void showNextYear()

  Shows the currently displayed month in the next year relative to the currently displayed year. Note that the selected date is not changed.

See also:
  `showPreviousYear()`, `setCurrentPage()`, and `setSelectedDate()`.

### showPreviousMonth

    public final void showPreviousMonth()

  Shows the previous month relative to the currently displayed month. Note that the selected date is not changed.

See also:
  `showNextMonth()`, `setCurrentPage()`, and `setSelectedDate()`.

### showPreviousYear

    public final void showPreviousYear()

  Shows the currently displayed month in the previous year relative to the currently displayed year. Note that the selected date is not changed.

See also:
  `showNextYear()`, `setCurrentPage()`, and `setSelectedDate()`.

### showSelectedDate

    public final void showSelectedDate()

  Shows the month of the selected date.

See also:
  `selectedDate()`, and `setCurrentPage()`.

### showToday

    public final void showToday()

  Shows the month of the today's date.

See also:
  `selectedDate()`, and `setCurrentPage()`.

### updateCell

    protected final void updateCell(QDate date)

  Updates the cell specified by the given `date` unless updates are disabled or the cell is hidden.

See also:
  `updateCells()`, `yearShown()`, and `monthShown()`.

### updateCells

    protected final void updateCells()

  Updates all visible cells unless updates are disabled.

See also:
  `updateCell()`.

### verticalHeaderFormat

    public final QCalendarWidget.VerticalHeaderFormat verticalHeaderFormat()

  This property holds the format of the vertical header. The default value is QCalendarWidget::ISOWeekNumber.

### weekdayTextFormat

    public final QTextCharFormat weekdayTextFormat(Qt.DayOfWeek dayOfWeek)

  Returns the text char format for rendering of day in the week `dayOfWeek`.

See also:
  `setWeekdayTextFormat()`, and `headerTextFormat()`.

### yearShown

    public final int yearShown()

  Returns the year of the currently displayed month. Months are numbered from 1 to 12.

See also:
  `monthShown()`, and `setCurrentPage()`.

### paintCell

    protected void paintCell(QPainter painter,
                             QRect rect,
                             QDate date)

  Paints the cell specified by the given `date`, using the given `painter` and `rect`.

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