The QMdiSubWindow class provides a subwindow class for QMdiArea. More...

Inheritance diagram for QMdiSubWindow:

Public Typedefs
using	SubWindowOptions = QFlags< SubWindowOption >

Public Typedefs inherited from QWidget
using	RenderFlags = QFlags< RenderFlag >

Public Types
enum	SubWindowOption

Public Types inherited from QWidget
enum	RenderFlag

Public Types inherited from QPaintDevice
enum	PaintDeviceMetric

Public Signals
void	aboutToActivate ()

void	windowStateChanged (Qt::WindowStates oldState, Qt::WindowStates newState)

Public Signals inherited from QWidget
void	customContextMenuRequested (const QPoint &pos)

void	windowIconChanged (const QIcon &icon)

void	windowIconTextChanged (const QString &iconText)

void	windowTitleChanged (const QString &title)

Public Signals inherited from QObject
void	destroyed (QObject *obj=nullptr)

void	objectNameChanged (const QString &objectName)

Public Slots
void	showShaded ()

void	showSystemMenu ()

Public Slots inherited from QWidget
bool	close ()

void	hide ()

void	lower ()

void	raise ()

void	repaint ()

void	setDisabled (bool disable)

void	setEnabled (bool enable)

void	setFocus ()

void	setHidden (bool hidden)

void	setStyleSheet (const QString &styleSheet)

virtual void	setVisible (bool visible)

void	setWindowModified (bool modified)

void	setWindowTitle (const QString &title)

void	show ()

void	showFullScreen ()

void	showMaximized ()

void	showMinimized ()

void	showNormal ()

void	update ()

Public Slots inherited from QObject
void	deleteLater ()

Public Methods
	QMdiSubWindow (QWidget *parent=nullptr, Qt::WindowFlags flags=Qt::EmptyFlag)

	~QMdiSubWindow ()

bool	isShaded () const

int	keyboardPageStep () const

int	keyboardSingleStep () const

QMdiArea *	mdiArea () const

QSize	minimumSizeHint () const override

void	setKeyboardPageStep (int step)

void	setKeyboardSingleStep (int step)

void	setOption (SubWindowOption option, bool on=true)

void	setSystemMenu (QMenu *systemMenu)

void	setWidget (QWidget *widget)

QSize	sizeHint () const override

QMenu *	systemMenu () const

bool	testOption (SubWindowOption option) const

QWidget *	widget () const

Public Methods inherited from QWidget
	QWidget (QWidget *parent=nullptr, Qt::WindowFlags flags=Qt::EmptyFlag)

	~QWidget ()

bool	acceptDrops () const

QString	accessibleDescription () const

QString	accessibleName () const

QList< QAction * >	actions () const

void	activateWindow ()

void	addAction (QAction *action)

void	addActions (const QList< QAction * > &actions)

void	adjustSize ()

bool	autoFillBackground () const

QPalette::ColorRole	backgroundRole () const

QBackingStore *	backingStore () const

QSize	baseSize () const

QWidget *	childAt (const QPoint &position) const

QWidget *	childAt (int x, int y) const

QRect	childrenRect () const

QRegion	childrenRegion () const

void	clearFocus ()

void	clearMask ()

QMargins	contentsMargins () const

QRect	contentsRect () const

Qt::ContextMenuPolicy	contextMenuPolicy () const

QCursor	cursor () const

WId	effectiveWinId () const

void	ensurePolished () const

Qt::FocusPolicy	focusPolicy () const

QWidget *	focusProxy () const

QWidget *	focusWidget () const

const QFont &	font () const

QFontInfo	fontInfo () const

QFontMetrics	fontMetrics () const

QPalette::ColorRole	foregroundRole () const

QRect	frameGeometry () const

QSize	frameSize () const

const QRect &	geometry () const

void	getContentsMargins (int left, int top, int right, int bottom) const

QPixmap	grab (const QRect &rectangle=QRect (QPoint (0, 0), QSize (-1,-1)))

void	grabGesture (Qt::GestureType gestureType, Qt::GestureFlags flags=Qt::GestureFlags ())

void	grabKeyboard ()

void	grabMouse ()

void	grabMouse (const QCursor &cursor)

int	grabShortcut (const QKeySequence &key, Qt::ShortcutContext context=Qt::WindowShortcut)

QGraphicsEffect *	graphicsEffect () const

QGraphicsProxyWidget *	graphicsProxyWidget () const

bool	hasEditFocus () const

bool	hasFocus () const

virtual bool	hasHeightForWidth () const

bool	hasMouseTracking () const

int	height () const

virtual int	heightForWidth (int width) const

Qt::InputMethodHints	inputMethodHints () const

virtual QVariant	inputMethodQuery (Qt::InputMethodQuery query) const

void	insertAction (QAction before, QAction action)

void	insertActions (QAction before, QList< QAction > actions)

bool	isActiveWindow () const

bool	isAncestorOf (const QWidget *child) const

bool	isEnabled () const

bool	isEnabledTo (const QWidget *parent) const

bool	isEnabledToTLW () const

bool	isFullScreen () const

bool	isHidden () const

bool	isMaximized () const

bool	isMinimized () const

bool	isModal () const

bool	isTopLevel () const

bool	isVisible () const

bool	isVisibleTo (const QWidget *parent) const

bool	isWindow () const

bool	isWindowModified () const

QLayout *	layout () const

Qt::LayoutDirection	layoutDirection () const

QLocale	locale () const

QPoint	mapFrom (const QWidget *parent, const QPoint &pos) const

QPoint	mapFromGlobal (const QPoint &pos) const

QPoint	mapFromParent (const QPoint &pos) const

QPoint	mapTo (const QWidget *parent, const QPoint &pos) const

QPoint	mapToGlobal (const QPoint &pos) const

QPoint	mapToParent (const QPoint &pos) const

QRegion	mask () const

int	maximumHeight () const

QSize	maximumSize () const

int	maximumWidth () const

int	minimumHeight () const

QSize	minimumSize () const

int	minimumWidth () const

void	move (const QPoint &point)

void	move (int x, int y)

QWidget *	nativeParentWidget () const

QWidget *	nextInFocusChain () const

QRect	normalGeometry () const

void	overrideWindowFlags (Qt::WindowFlags flags)

QPaintEngine *	paintEngine () const override

const QPalette &	palette () const

QWidget *	parentWidget () const

QPoint	pos () const

QWidget *	previousInFocusChain () const

QRect	rect () const

void	releaseKeyboard ()

void	releaseMouse ()

void	releaseShortcut (int id)

void	removeAction (QAction *action)

void	render (QPaintDevice *target, const QPoint &targetOffset=QPoint (), const QRegion &sourceRegion=QRegion (), RenderFlags renderFlags=RenderFlags (DrawWindowBackground\|DrawChildren))

void	render (QPainter *painter, const QPoint &targetOffset=QPoint (), const QRegion &sourceRegion=QRegion (), RenderFlags renderFlags=RenderFlags (DrawWindowBackground\|DrawChildren))

void	repaint (const QRect &rect)

void	repaint (const QRegion &region)

void	repaint (int x, int y, int w, int h)

void	resize (const QSize &size)

void	resize (int w, int h)

bool	restoreGeometry (const QByteArray &geometry)

QByteArray	saveGeometry () const

void	scroll (int dx, int dy)

void	scroll (int dx, int dy, const QRect &rect)

void	setAcceptDrops (bool on)

void	setAccessibleDescription (const QString &description)

void	setAccessibleName (const QString &name)

void	setAttribute (Qt::WidgetAttribute attribute, bool enable=true)

void	setAutoFillBackground (bool enable)

void	setBackgroundRole (QPalette::ColorRole role)

void	setBaseSize (const QSize &size)

void	setBaseSize (int basew, int baseh)

void	setContentsMargins (const QMargins &margins)

void	setContentsMargins (int left, int top, int right, int bottom)

void	setContextMenuPolicy (Qt::ContextMenuPolicy policy)

void	setCursor (const QCursor &cursor)

void	setEditFocus (bool enable)

void	setFixedHeight (int h)

void	setFixedSize (const QSize &size)

void	setFixedSize (int w, int h)

void	setFixedWidth (int w)

void	setFocus (Qt::FocusReason reason)

void	setFocusPolicy (Qt::FocusPolicy policy)

void	setFocusProxy (QWidget *widget)

void	setFont (const QFont &font)

void	setForegroundRole (QPalette::ColorRole role)

void	setGeometry (const QRect &rect)

void	setGeometry (int x, int y, int w, int h)

void	setGraphicsEffect (QGraphicsEffect *effect)

void	setInputMethodHints (Qt::InputMethodHints hints)

void	setLayout (QLayout *layout)

void	setLayoutDirection (Qt::LayoutDirection direction)

void	setLocale (const QLocale &locale)

void	setMask (const QBitmap &bitmap)

void	setMask (const QRegion &region)

void	setMaximumHeight (int maxh)

void	setMaximumSize (const QSize &size)

void	setMaximumSize (int maxw, int maxh)

void	setMaximumWidth (int maxw)

void	setMinimumHeight (int minh)

void	setMinimumSize (const QSize &size)

void	setMinimumSize (int minw, int minh)

void	setMinimumWidth (int minw)

void	setMouseTracking (bool enable)

void	setPalette (const QPalette &palette)

void	setParent (QWidget *parent)

void	setParent (QWidget *parent, Qt::WindowFlags flags)

void	setShortcutAutoRepeat (int id, bool enable=true)

void	setShortcutEnabled (int id, bool enable=true)

void	setSizeIncrement (const QSize &size)

void	setSizeIncrement (int w, int h)

void	setSizePolicy (QSizePolicy policy)

void	setSizePolicy (QSizePolicy::Policy horizontal, QSizePolicy::Policy vertical)

void	setStatusTip (const QString &data)

void	setStyle (QStyle *style)

void	setToolTip (const QString &data)

void	setToolTipDuration (int msec)

void	setUpdatesEnabled (bool enable)

void	setWhatsThis (const QString &str)

void	setWindowFilePath (const QString &filePath)

void	setWindowFlags (Qt::WindowFlags flags)

void	setWindowIcon (const QIcon &icon)

void	setWindowModality (Qt::WindowModality windowModality)

void	setWindowOpacity (qreal level)

void	setWindowRole (const QString &role)

void	setWindowState (Qt::WindowStates windowState)

QSize	size () const

QSize	sizeIncrement () const

QSizePolicy	sizePolicy () const

void	stackUnder (QWidget *widget)

QString	statusTip () const

QStyle *	style () const

QString	styleSheet () const

bool	testAttribute (Qt::WidgetAttribute attribute) const

QString	toolTip () const

int	toolTipDuration () const

QWidget *	topLevelWidget () const

bool	underMouse () const

void	ungrabGesture (Qt::GestureType gestureType)

void	unsetCursor ()

void	unsetLayoutDirection ()

void	unsetLocale ()

void	update (const QRect &rect)

void	update (const QRegion &region)

void	update (int x, int y, int w, int h)

void	updateGeometry ()

bool	updatesEnabled () const

QRegion	visibleRegion () const

QString	whatsThis () const

int	width () const

QWidget *	window () const

QString	windowFilePath () const

Qt::WindowFlags	windowFlags () const

QWindow *	windowHandle () const

QIcon	windowIcon () const

Qt::WindowModality	windowModality () const

qreal	windowOpacity () const

QString	windowRole () const

Qt::WindowStates	windowState () const

QString	windowTitle () const

Qt::WindowType	windowType () const

WId	winId () const

int	x () const

int	y () const

Public Methods inherited from QObject
	QObject (QObject *parent=nullptr)

	~QObject ()

bool	blockSignals (bool block)

const QList< QObject * > &	children () const

bool	connect (const QObject *sender, const QString &signalMethod, const QString &location, const QString &slotMethod, Qt::ConnectionType type=Qt::AutoConnection)

bool	connect (const QObject *sender, const QString &signalMethod, const QString &slotMethod, Qt::ConnectionType type=Qt::AutoConnection)

bool	disconnect (const QObject *receiver, const QString &slotMethod=QString ()) const

bool	disconnect (const QString &signalMethod, const QString &location, const QObject *receiver=nullptr, const QString &slotMethod=QString ()) const

bool	disconnect (const QString &signalMethod=QString (), const QObject *receiver=nullptr, const QString &slotMethod=QString ()) const

void	dumpObjectInfo ()

void	dumpObjectTree ()

QList< QString >	dynamicPropertyNames () const

virtual bool	event (QEvent *event)

virtual bool	eventFilter (QObject watched, QEvent event)

template<typename T >
T	findChild (const QString &childName=QString ()) const

template<class T >
QList< T >	findChildren (const QRegularExpression &regExp, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const

template<class T >
QList< T >	findChildren (const QString &childName=QString (), Qt::FindChildOptions options=Qt::FindChildrenRecursively) const

bool	inherits (const QString &className) const

void	installEventFilter (QObject *filterObj)

bool	isWidgetType () const

bool	isWindowType () const

void	killTimer (int id)

const QMetaObject *	metaObject () const

void	moveToThread (QThread *targetThread)

QString	objectName () const

QObject *	parent () const

template<class T = QVariant>
T	property (const QString &name) const

void	removeEventFilter (QObject *obj)

void	setObjectName (const QString &name)

void	setParent (QObject *parent)

bool	setProperty (const QString &name, const QVariant &value)

bool	signalsBlocked () const

int	startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer)

QThread *	thread () const

Public Methods inherited from QPaintDevice
virtual	~QPaintDevice ()

int	colorCount () const

int	depth () const

int	devicePixelRatio () const

qreal	devicePixelRatioF () const

int	height () const

int	heightMM () const

int	logicalDpiX () const

int	logicalDpiY () const

bool	paintingActive () const

int	physicalDpiX () const

int	physicalDpiY () const

int	width () const

int	widthMM () const

Protected Methods
void	changeEvent (QEvent *changeEvent) override

void	childEvent (QChildEvent *childEvent) override

void	closeEvent (QCloseEvent *closeEvent) override

void	contextMenuEvent (QContextMenuEvent *contextMenuEvent) override

bool	event (QEvent *event) override

bool	eventFilter (QObject object, QEvent event) override

void	focusInEvent (QFocusEvent *focusInEvent) override

void	focusOutEvent (QFocusEvent *focusOutEvent) override

void	hideEvent (QHideEvent *hideEvent) override

void	keyPressEvent (QKeyEvent *keyEvent) override

void	leaveEvent (QEvent *leaveEvent) override

void	mouseDoubleClickEvent (QMouseEvent *mouseEvent) override

void	mouseMoveEvent (QMouseEvent *mouseEvent) override

void	mousePressEvent (QMouseEvent *mouseEvent) override

void	mouseReleaseEvent (QMouseEvent *mouseEvent) override

void	moveEvent (QMoveEvent *moveEvent) override

void	paintEvent (QPaintEvent *paintEvent) override

void	resizeEvent (QResizeEvent *resizeEvent) override

void	showEvent (QShowEvent *showEvent) override

void	timerEvent (QTimerEvent *timerEvent) override

Protected Methods inherited from QWidget
virtual void	actionEvent (QActionEvent *event)

void	create (WId window=0, bool initializeWindow=true, bool destroyOldWindow=true)

void	destroy (bool destroyWindow=true, bool destroySubWindows=true)

virtual void	dragEnterEvent (QDragEnterEvent *event)

virtual void	dragLeaveEvent (QDragLeaveEvent *event)

virtual void	dragMoveEvent (QDragMoveEvent *event)

virtual void	dropEvent (QDropEvent *event)

virtual void	enterEvent (QEvent *event)

bool	event (QEvent *event) override

bool	focusNextChild ()

virtual bool	focusNextPrevChild (bool next)

bool	focusPreviousChild ()

void	initPainter (QPainter *painter) const override

virtual void	inputMethodEvent (QInputMethodEvent *event)

virtual void	keyReleaseEvent (QKeyEvent *event)

int	metric (PaintDeviceMetric metric) const override

virtual bool	nativeEvent (const QByteArray &eventType, void message, long result)

virtual void	tabletEvent (QTabletEvent *event)

virtual void	wheelEvent (QWheelEvent *event)

Protected Methods inherited from QObject
virtual void	childEvent (QChildEvent *event)

virtual void	connectNotify (const QMetaMethod &signalMethod) const

virtual void	customEvent (QEvent *event)

virtual void	disconnectNotify (const QMetaMethod &signalMethod) const

bool	isSignalConnected (const QMetaMethod &signalMethod) const

int	receivers (const QString &signal) const

QObject *	sender () const

int	senderSignalIndex () const

virtual void	timerEvent (QTimerEvent *event)

Protected Methods inherited from QPaintDevice
	QPaintDevice ()

Properties
	keyboardPageStep

	keyboardSingleStep

Properties inherited from QWidget
	acceptDrops

	accessibleDescription

	accessibleName

	autoFillBackground

	baseSize

	childrenRect

	childrenRegion

	contextMenuPolicy

	cursor

	enabled

	focus

	focusPolicy

	font

	frameGeometry

	frameSize

	fullScreen

	geometry

	height

	inputMethodHints

	isActiveWindow

	layoutDirection

	locale

	maximized

	maximumHeight

	maximumSize

	maximumWidth

	minimized

	minimumHeight

	minimumSize

	minimumSizeHint

	minimumWidth

	modal

	mouseTracking

	normalGeometry

	palette

	pos

	rect

	size

	sizeHint

	sizeIncrement

	sizePolicy

	statusTip

	styleSheet

	toolTip

	updatesEnabled

	visible

	whatsThis

	width

	windowFilePath

	windowFlags

	windowIcon

	windowIconText

	windowModality

	windowModified

	windowOpacity

	windowTitle

	x

	y

Properties inherited from QObject
	objectName

Additional Inherited Members
Static Public Methods inherited from QWidget
static QWidget *	createWindowContainer (QWindow window, QWidget parent=nullptr, Qt::WindowFlags flags=Qt::EmptyFlag)

static QWidget *	find (WId id)

static QWidget *	keyboardGrabber ()

static QWidget *	mouseGrabber ()

static void	setTabOrder (QWidget firstWidget, QWidget secondWidget)

Static Public Methods inherited from QObject
static bool	connect (const QObject sender, const QMetaMethod &signalMethod, const QObject receiver, const QMetaMethod &slotMethod, Qt::ConnectionType type=Qt::AutoConnection)

static bool	connect (const QObject sender, const QString &signalMethod, const QObject receiver, const QString &slotMethod, Qt::ConnectionType type=Qt::AutoConnection, const QString &location=QString ())

static bool	connect (const QObject sender, const QString &signalMethod, const QString &location, const QObject receiver, const QString &slotMethod, Qt::ConnectionType type=Qt::AutoConnection)

template<class Sender , class SignalClass , class... SignalArgs, class Receiver , class SlotClass , class... SlotArgs, class SlotReturn >
static bool	connect (const Sender sender, void (SignalClass::signalMethod)(SignalArgs...), const Receiver receiver, SlotReturn (SlotClass::slotMethod)(SlotArgs...), Qt::ConnectionType type=Qt::AutoConnection)

template<class Sender , class SignalClass , class... SignalArgs, class Receiver , class T >
static bool	connect (const Sender sender, void (SignalClass::signalMethod)(SignalArgs...), const Receiver *receiver, T slotLambda, Qt::ConnectionType type=Qt::AutoConnection)

static bool	disconnect (const QObject sender, const QMetaMethod &signalMethod, const QObject receiver, const QMetaMethod &slotMethod)

static bool	disconnect (const QObject sender, const QString &signalMethod, const QObject receiver, const QString &slotMethod)

static bool	disconnect (const QObject sender, const QString &signalMethod, const QString &location, const QObject receiver, const QString &slotMethod)

static bool	disconnect (const QObject sender, std::nullptr_t, const QObject receiver, std::nullptr_t)

template<class Sender , class SignalClass , class... SignalArgs, class Receiver , class SlotClass , class... SlotArgs, class SlotReturn >
static bool	disconnect (const Sender sender, void (SignalClass::signalMethod)(SignalArgs...), const Receiver receiver, SlotReturn (SlotClass::slotMethod)(SlotArgs...))

template<class Sender , class SignalClass , class... SignalArgs, class Receiver >
static bool	disconnect (const Sender sender, void (SignalClass::signalMethod)(SignalArgs...), const Receiver *receiver, std::nullptr_t slotMethod=nullptr)

template<class Sender , class SignalClass , class... SignalArgs, class Receiver , class T >
static bool	disconnect (const Sender sender, void (SignalClass::signalMethod)(SignalArgs...), const Receiver *receiver, T slotMethod)

static QMetaObject &	staticMetaObject ()

static QString	tr (const char text, const char comment=nullptr, std::optional< int > numArg=std::optional< int >())

Protected Slots inherited from QWidget
void	updateMicroFocus ()

Related Functions inherited from QWidget
	QWidgetList

	WId

Related Functions inherited from QObject
T	qobject_cast (QObject *object)

	QObjectList

Detailed Description

The QMdiSubWindow class provides a subwindow class for QMdiArea. This class represents a top-level window in a QMdiArea, and consists of a title bar with window decorations, an internal widget, and (depending on the current style) a window frame and a size grip. QMdiSubWindow has its own layout, which consists of the title bar and a center area for the internal widget.

The most common way to construct a QMdiSubWindow is to call QMdiArea::addSubWindow() with the internal widget as the argument. You can also create a subwindow yourself, and set an internal widget by calling setWidget(). You use the same API when programming with subwindows as with regular top-level windows. For example, you can call methods such as show(), hide(), showMaximized(), and setWindowTitle().

Subwindow Handling

QMdiSubWindow also supports behavior specific to subwindows in an MDI area.

By default, each QMdiSubWindow is visible inside the MDI area viewport when moved around, but it is also possible to specify transparent window movement and resizing behavior, where only the outline of a subwindow is updated during these operations. The setOption() method is used to enable this behavior.

The isShaded() method detects whether the subwindow is currently shaded and drawn with only the title bar visible. To enter shaded mode call showShaded(). QMdiSubWindow emits the windowStateChanged() signal whenever the window state has changed because the window is minimized or is restored. It also emits aboutToActivate() before it is activated.

In keyboard-interactive mode, the windows are moved and resized with the keyboard. You can enter this mode through the system menu of the window. The keyboardSingleStep and keyboardPageStep properties control the distance the widget is moved or resized for each keypress event. When shift is pressed down page step is used, otherwise single step is used.

You can also change the active window with the keyboard. By pressing the control and tab keys at the same time, the next (using the current WindowOrder) subwindow will be activated. By pressing control, shift, and tab, you will activate the previous window. This is equivalent to calling activateNextSubWindow() and activatePreviousSubWindow(). Note that these shortcuts overrides global shortcuts, but not the QMdiAreas shortcuts.

See also: QMdiArea

Member Typedef Documentation

QMdiSubWindow::SubWindowOptions

Typedef for QFlags<SubWindowOption>. Refer to QMdiSubWindow::SubWindowOption for documentation.

Member Enumeration Documentation

enum QMdiSubWindow::SubWindowOption

This enum describes options that customize the behavior of QMdiSubWindow.

Constant	Value	Description
`QMdiSubWindow::RubberBandResize`	`0x4`	If you enable this option, a rubber band control is used to represent the subwindow's outline, and the user resizes this instead of the subwindow itself. As a result, the subwindow maintains its original position and size until the resize operation has been completed, at which time it will receive a single QResizeEvent. By default, this option is disabled.
`QMdiSubWindow::RubberBandMove`	`0x8`	If you enable this option, a rubber band control is used to represent the subwindow's outline, and the user moves this instead of the subwindow itself. As a result, the subwindow remains in its original position until the move operation has completed, at which time a QMoveEvent is sent to the window. By default, this option is disabled.

The SubWindowOptions type is a typedef for QFlags<SubWindowOption>. It stores an OR combination of SubWindowOption values.

Constructor & Destructor Documentation

QMdiSubWindow::QMdiSubWindow	(	QWidget *	parent = `nullptr`,
		Qt::WindowFlags	flags = `Qt::EmptyFlag`
	)

Constructs a new QMdiSubWindow widget. The parent and flags arguments are passed to QWidget's constructor. Instead of using addSubWindow() it is also possible to use setParent() when you add the subwindow to a QMdiArea.

Only QMdiSubWindows can be set as children of a QMdiArea. The following is an example of code which should not be used.

QMdiArea mdiArea;

QTextEdit editor(&mdiArea); // invalid child widget

See also: QMdiArea::addSubWindow()

QMdiSubWindow::~QMdiSubWindow ( )

Destroys the subwindow.

See also: QMdiArea::removeSubWindow()

Method Documentation

void QMdiSubWindow::aboutToActivate ( )

signal

QMdiSubWindow emits this signal immediately before it is activated. After the subwindow has been activated, the QMdiArea that manages the subwindow will also emit the subWindowActivated() signal.

See also: QMdiArea::subWindowActivated()

void QMdiSubWindow::changeEvent ( QEvent * changeEvent )

overrideprotectedvirtual

Reimplemented from QWidget::changeEvent()

void QMdiSubWindow::childEvent ( QChildEvent * childEvent )

overrideprotected

Reimplemented from QObject::childEvent()

void QMdiSubWindow::closeEvent ( QCloseEvent * closeEvent )

overrideprotectedvirtual

Reimplemented from QWidget::closeEvent()

void QMdiSubWindow::contextMenuEvent ( QContextMenuEvent * contextMenuEvent )

overrideprotectedvirtual

Reimplemented from QWidget::contextMenuEvent()

bool QMdiSubWindow::event ( QEvent * event )

overrideprotected

Reimplemented from QWidget::event()

bool QMdiSubWindow::eventFilter	(	QObject *	object,
		QEvent *	event
	)

overrideprotected

Reimplemented from QObject::eventFilter()

void QMdiSubWindow::focusInEvent ( QFocusEvent * focusInEvent )

overrideprotectedvirtual

Reimplemented from QWidget::focusInEvent()

void QMdiSubWindow::focusOutEvent ( QFocusEvent * focusOutEvent )

overrideprotectedvirtual

Reimplemented from QWidget::focusOutEvent()

void QMdiSubWindow::hideEvent ( QHideEvent * hideEvent )

overrideprotectedvirtual

Reimplemented from QWidget::hideEvent()

bool QMdiSubWindow::isShaded ( ) const

Returns true if this window is shaded, otherwise returns false. A window is shaded if it is collapsed so that only the title bar is visible.

int QMdiSubWindow::keyboardPageStep ( ) const

Returns the value of the property.

int QMdiSubWindow::keyboardSingleStep ( ) const

Returns the value of the property.

void QMdiSubWindow::keyPressEvent ( QKeyEvent * keyEvent )

overrideprotectedvirtual

Reimplemented from QWidget::keyPressEvent()

void QMdiSubWindow::leaveEvent ( QEvent * leaveEvent )

overrideprotectedvirtual

Reimplemented from QWidget::leaveEvent()

QMdiArea * QMdiSubWindow::mdiArea ( ) const

Returns the area containing this sub-window or a nullptr if there is none.

See also: QMdiArea::addSubWindow()

QSize QMdiSubWindow::minimumSizeHint ( ) const

overridevirtual

Reimplemented from QWidget::minimumSizeHint()

void QMdiSubWindow::mouseDoubleClickEvent ( QMouseEvent * mouseEvent )

overrideprotectedvirtual

Reimplemented from QWidget::mouseDoubleClickEvent()

void QMdiSubWindow::mouseMoveEvent ( QMouseEvent * mouseEvent )

overrideprotectedvirtual

Reimplemented from QWidget::mouseMoveEvent()

void QMdiSubWindow::mousePressEvent ( QMouseEvent * mouseEvent )

overrideprotectedvirtual

Reimplemented from QWidget::mousePressEvent()

void QMdiSubWindow::mouseReleaseEvent ( QMouseEvent * mouseEvent )

overrideprotectedvirtual

Reimplemented from QWidget::mouseReleaseEvent()

void QMdiSubWindow::moveEvent ( QMoveEvent * moveEvent )

overrideprotectedvirtual

Reimplemented from QWidget::moveEvent()

void QMdiSubWindow::paintEvent ( QPaintEvent * paintEvent )

overrideprotectedvirtual

Reimplemented from QWidget::paintEvent()

void QMdiSubWindow::resizeEvent ( QResizeEvent * resizeEvent )

overrideprotectedvirtual

Reimplemented from QWidget::resizeEvent()

void QMdiSubWindow::setKeyboardPageStep ( int step )

Sets the value of the property to step.

void QMdiSubWindow::setKeyboardSingleStep ( int step )

Sets the value of the property to step.

void QMdiSubWindow::setOption	(	SubWindowOption	option,
		bool	on = `true`
	)

If on is true the given window option is enabled on the subwindow, otherwise it is disabled. Refer to SubWindowOption for the effect of each option.

See also: SubWindowOption, testOption()

void QMdiSubWindow::setSystemMenu ( QMenu * systemMenu )

Sets systemMenu as the current system menu for this subwindow. By default each QMdiSubWindow has a standard system menu. QActions for the system menu created by QMdiSubWindow will automatically be updated depending on the current window state. For example, the minimize action will be disabled after the window is minimized.

QActions added by the user are not updated by QMdiSubWindow. QMdiSubWindow takes ownership of systemMenu. You do not have to delete it. Any existing menus will be deleted.

See also: systemMenu(), showSystemMenu()

void QMdiSubWindow::setWidget ( QWidget * widget )

Sets widget as the internal widget of this subwindow. The internal widget is displayed in the center of the subwindow beneath the title bar. QMdiSubWindow takes temporary ownership of widget. You do not have to delete it. Any existing internal widget will be removed and reparented to the root window.

See also: widget()

void QMdiSubWindow::showEvent ( QShowEvent * showEvent )

overrideprotectedvirtual

Reimplemented from QWidget::showEvent()

void QMdiSubWindow::showShaded ( )

slot

Calling this function makes the subwindow enter the shaded mode. When the subwindow is shaded, only the title bar is visible.

Although shading is not supported by all styles, this function will still show the subwindow as shaded, regardless of whether support for shading is available. However, when used with styles without shading support, the user will be unable to return from shaded mode through the user interface (e.g., through a shade button in the title bar).

See also: isShaded()

void QMdiSubWindow::showSystemMenu ( )

slot

Shows the system menu below the system menu icon in the title bar.

See also: setSystemMenu(), systemMenu()

QSize QMdiSubWindow::sizeHint ( ) const

overridevirtual

Reimplemented from QWidget::sizeHint()

QMenu * QMdiSubWindow::systemMenu ( ) const

Returns a pointer to the current system menu or zero if no system menu is set. QMdiSubWindow provides a default system menu. You can also set the menu with setSystemMenu().

See also: setSystemMenu(), showSystemMenu()

bool QMdiSubWindow::testOption ( SubWindowOption option ) const

Returns true if option is enabled, otherwise returns false.

See also: SubWindowOption, setOption()

void QMdiSubWindow::timerEvent ( QTimerEvent * timerEvent )

overrideprotected

Reimplemented from QObject::timerEvent()

QWidget * QMdiSubWindow::widget ( ) const

Returns the current internal widget.

See also: setWidget()

void QMdiSubWindow::windowStateChanged	(	Qt::WindowStates	oldState,
		Qt::WindowStates	newState
	)

signal

QMdiSubWindow emits this signal after the window state changes. The oldState is the window state before it changed, and newState is the new current state.

Property Documentation

QMdiSubWindow::keyboardPageStep

This property holds sets how far a widget should move or resize when using the keyboard page keys.

When in keyboard-interactive mode, you can use the arrow and page keys to either move or resize the window. This property controls the page keys. The common way to enter keyboard interactive mode is to enter the subwindow menu, and select either "resize" or "move".

The default keyboard page step value is 20 pixels.

See also: keyboardSingleStep

Properties	Class Methods
read	keyboardPageStep
write	setKeyboardPageStep

QMdiSubWindow::keyboardSingleStep

This property holds sets how far a widget should move or resize when using the keyboard arrow keys.

When in keyboard-interactive mode, you can use the arrow and page keys to either move or resize the window. This property controls the arrow keys. The common way to enter keyboard interactive mode is to enter the subwindow menu, and select either "resize" or "move".

The default keyboard single step value is 5 pixels.

See also: keyboardPageStep

Properties	Class Methods
read	keyboardSingleStep
write	setKeyboardSingleStep

Public Typedefs

Public Types

Public Signals

Public Slots

Public Methods

Protected Methods

Properties

Additional Inherited Members

Detailed Description

Subwindow Handling

Member Typedef Documentation

Member Enumeration Documentation

Constructor & Destructor Documentation

Method Documentation

Property Documentation