Inheritance diagram for EventTester:

Collaboration diagram for EventTester:

Public Member Functions
void	setGeometry (const QRectF &rect)

QRectF	boundingRect () const override

void	paint (QPainter painter, const QStyleOptionGraphicsItem o, QWidget *) override

bool	sceneEvent (QEvent *event) override

void	reset ()

	EventTester ()

int	foo (int bar)

	QGraphicsItem (QGraphicsItem *parent=nullptr)

	QGraphicsItem (QGraphicsItemPrivate &dd, QGraphicsItem *parent)

Public Member Functions inherited from QGraphicsItem
	QGraphicsItem (QGraphicsItem *parent=nullptr)

virtual	~QGraphicsItem ()

QGraphicsScene *	scene () const

QGraphicsItem *	parentItem () const

QGraphicsItem *	topLevelItem () const

QGraphicsObject *	parentObject () const

QGraphicsWidget *	parentWidget () const

QGraphicsWidget *	topLevelWidget () const

QGraphicsWidget *	window () const

QGraphicsItem *	panel () const

void	setParentItem (QGraphicsItem *parent)

QList< QGraphicsItem * >	childItems () const

bool	isWidget () const

bool	isWindow () const

bool	isPanel () const

QGraphicsObject *	toGraphicsObject ()

const QGraphicsObject *	toGraphicsObject () const

QGraphicsItemGroup *	group () const

void	setGroup (QGraphicsItemGroup *group)

GraphicsItemFlags	flags () const

void	setFlag (GraphicsItemFlag flag, bool enabled=true)

void	setFlags (GraphicsItemFlags flags)

CacheMode	cacheMode () const

void	setCacheMode (CacheMode mode, const QSize &cacheSize=QSize())

PanelModality	panelModality () const

void	setPanelModality (PanelModality panelModality)

bool	isBlockedByModalPanel (QGraphicsItem **blockingPanel=nullptr) const

QCursor	cursor () const

void	setCursor (const QCursor &cursor)

bool	hasCursor () const

void	unsetCursor ()

bool	isVisible () const

bool	isVisibleTo (const QGraphicsItem *parent) const

void	setVisible (bool visible)

void	hide ()

void	show ()

bool	isEnabled () const

void	setEnabled (bool enabled)

bool	isSelected () const

void	setSelected (bool selected)

bool	acceptDrops () const

void	setAcceptDrops (bool on)

qreal	opacity () const

qreal	effectiveOpacity () const

void	setOpacity (qreal opacity)

Qt::MouseButtons	acceptedMouseButtons () const

void	setAcceptedMouseButtons (Qt::MouseButtons buttons)

bool	acceptHoverEvents () const

void	setAcceptHoverEvents (bool enabled)

bool	acceptTouchEvents () const

void	setAcceptTouchEvents (bool enabled)

bool	filtersChildEvents () const

void	setFiltersChildEvents (bool enabled)

bool	handlesChildEvents () const

void	setHandlesChildEvents (bool enabled)

bool	isActive () const

void	setActive (bool active)

bool	hasFocus () const

void	setFocus (Qt::FocusReason focusReason=Qt::OtherFocusReason)

void	clearFocus ()

QGraphicsItem *	focusProxy () const

void	setFocusProxy (QGraphicsItem *item)

QGraphicsItem *	focusItem () const

QGraphicsItem *	focusScopeItem () const

void	grabMouse ()

void	ungrabMouse ()

void	grabKeyboard ()

void	ungrabKeyboard ()

QPointF	pos () const

qreal	x () const

void	setX (qreal x)

qreal	y () const

void	setY (qreal y)

QPointF	scenePos () const

void	setPos (const QPointF &pos)

void	setPos (qreal x, qreal y)

void	moveBy (qreal dx, qreal dy)

void	ensureVisible (const QRectF &rect=QRectF(), int xmargin=50, int ymargin=50)

void	ensureVisible (qreal x, qreal y, qreal w, qreal h, int xmargin=50, int ymargin=50)

QTransform	transform () const

QTransform	sceneTransform () const

QTransform	deviceTransform (const QTransform &viewportTransform) const

QTransform	itemTransform (const QGraphicsItem other, bool ok=nullptr) const

void	setTransform (const QTransform &matrix, bool combine=false)

void	resetTransform ()

void	setRotation (qreal angle)

qreal	rotation () const

void	setScale (qreal scale)

qreal	scale () const

QList< QGraphicsTransform * >	transformations () const

void	setTransformations (const QList< QGraphicsTransform * > &transformations)

QPointF	transformOriginPoint () const

void	setTransformOriginPoint (const QPointF &origin)

void	setTransformOriginPoint (qreal ax, qreal ay)

virtual void	advance (int phase)

qreal	zValue () const

void	setZValue (qreal z)

void	stackBefore (const QGraphicsItem *sibling)

QRectF	childrenBoundingRect () const

QRectF	sceneBoundingRect () const

bool	isClipped () const

QPainterPath	clipPath () const

virtual bool	collidesWithItem (const QGraphicsItem *other, Qt::ItemSelectionMode mode=Qt::IntersectsItemShape) const

virtual bool	collidesWithPath (const QPainterPath &path, Qt::ItemSelectionMode mode=Qt::IntersectsItemShape) const

QList< QGraphicsItem * >	collidingItems (Qt::ItemSelectionMode mode=Qt::IntersectsItemShape) const

bool	isObscured (const QRectF &rect=QRectF()) const

bool	isObscured (qreal x, qreal y, qreal w, qreal h) const

QRegion	boundingRegion (const QTransform &itemToDeviceTransform) const

qreal	boundingRegionGranularity () const

void	setBoundingRegionGranularity (qreal granularity)

void	update (const QRectF &rect=QRectF())

void	update (qreal x, qreal y, qreal width, qreal height)

void	scroll (qreal dx, qreal dy, const QRectF &rect=QRectF())

QPointF	mapToItem (const QGraphicsItem *item, const QPointF &point) const

QPointF	mapToParent (const QPointF &point) const

QPointF	mapToScene (const QPointF &point) const

QPolygonF	mapToItem (const QGraphicsItem *item, const QRectF &rect) const

QPolygonF	mapToParent (const QRectF &rect) const

QPolygonF	mapToScene (const QRectF &rect) const

QRectF	mapRectToItem (const QGraphicsItem *item, const QRectF &rect) const

QRectF	mapRectToParent (const QRectF &rect) const

QRectF	mapRectToScene (const QRectF &rect) const

QPolygonF	mapToItem (const QGraphicsItem *item, const QPolygonF &polygon) const

QPolygonF	mapToParent (const QPolygonF &polygon) const

QPolygonF	mapToScene (const QPolygonF &polygon) const

QPainterPath	mapToItem (const QGraphicsItem *item, const QPainterPath &path) const

QPainterPath	mapToParent (const QPainterPath &path) const

QPainterPath	mapToScene (const QPainterPath &path) const

QPointF	mapFromItem (const QGraphicsItem *item, const QPointF &point) const

QPointF	mapFromParent (const QPointF &point) const

QPointF	mapFromScene (const QPointF &point) const

QPolygonF	mapFromItem (const QGraphicsItem *item, const QRectF &rect) const

QPolygonF	mapFromParent (const QRectF &rect) const

QPolygonF	mapFromScene (const QRectF &rect) const

QRectF	mapRectFromItem (const QGraphicsItem *item, const QRectF &rect) const

QRectF	mapRectFromParent (const QRectF &rect) const

QRectF	mapRectFromScene (const QRectF &rect) const

QPolygonF	mapFromItem (const QGraphicsItem *item, const QPolygonF &polygon) const

QPolygonF	mapFromParent (const QPolygonF &polygon) const

QPolygonF	mapFromScene (const QPolygonF &polygon) const

QPainterPath	mapFromItem (const QGraphicsItem *item, const QPainterPath &path) const

QPainterPath	mapFromParent (const QPainterPath &path) const

QPainterPath	mapFromScene (const QPainterPath &path) const

QPointF	mapToItem (const QGraphicsItem *item, qreal x, qreal y) const

QPointF	mapToParent (qreal x, qreal y) const

QPointF	mapToScene (qreal x, qreal y) const

QPolygonF	mapToItem (const QGraphicsItem *item, qreal x, qreal y, qreal w, qreal h) const

QPolygonF	mapToParent (qreal x, qreal y, qreal w, qreal h) const

QPolygonF	mapToScene (qreal x, qreal y, qreal w, qreal h) const

QRectF	mapRectToItem (const QGraphicsItem *item, qreal x, qreal y, qreal w, qreal h) const

QRectF	mapRectToParent (qreal x, qreal y, qreal w, qreal h) const

QRectF	mapRectToScene (qreal x, qreal y, qreal w, qreal h) const

QPointF	mapFromItem (const QGraphicsItem *item, qreal x, qreal y) const

QPointF	mapFromParent (qreal x, qreal y) const

QPointF	mapFromScene (qreal x, qreal y) const

QPolygonF	mapFromItem (const QGraphicsItem *item, qreal x, qreal y, qreal w, qreal h) const

QPolygonF	mapFromParent (qreal x, qreal y, qreal w, qreal h) const

QPolygonF	mapFromScene (qreal x, qreal y, qreal w, qreal h) const

QRectF	mapRectFromItem (const QGraphicsItem *item, qreal x, qreal y, qreal w, qreal h) const

QRectF	mapRectFromParent (qreal x, qreal y, qreal w, qreal h) const

QRectF	mapRectFromScene (qreal x, qreal y, qreal w, qreal h) const

bool	isAncestorOf (const QGraphicsItem *child) const

QGraphicsItem *	commonAncestorItem (const QGraphicsItem *other) const

bool	isUnderMouse () const

QVariant	data (int key) const

void	setData (int key, const QVariant &value)

Qt::InputMethodHints	inputMethodHints () const

void	setInputMethodHints (Qt::InputMethodHints hints)

void	installSceneEventFilter (QGraphicsItem *filterItem)

void	removeSceneEventFilter (QGraphicsItem *filterItem)

Public Member Functions inherited from QGraphicsEllipseItem
	QGraphicsEllipseItem (QGraphicsItem *parent=nullptr)

	QGraphicsEllipseItem (const QRectF &rect, QGraphicsItem *parent=nullptr)

	QGraphicsEllipseItem (qreal x, qreal y, qreal w, qreal h, QGraphicsItem *parent=nullptr)

	~QGraphicsEllipseItem ()

QRectF	rect () const

void	setRect (const QRectF &rect)

void	setRect (qreal x, qreal y, qreal w, qreal h)

int	startAngle () const

void	setStartAngle (int angle)

int	spanAngle () const

void	setSpanAngle (int angle)

QPainterPath	shape () const override

bool	contains (const QPointF &point) const override

bool	isObscuredBy (const QGraphicsItem *item) const override

QPainterPath	opaqueArea () const override

int	type () const override

Public Member Functions inherited from QAbstractGraphicsShapeItem
	QAbstractGraphicsShapeItem (QGraphicsItem *parent=nullptr)

	~QAbstractGraphicsShapeItem ()

QPen	pen () const

void	setPen (const QPen &pen)

QBrush	brush () const

void	setBrush (const QBrush &brush)

Public Member Functions inherited from QObject
Q_INVOKABLE	QObject (QObject *parent=nullptr)

virtual	~QObject ()

virtual bool	eventFilter (QObject watched, QEvent event)

QString	objectName () const

void	setObjectName (const QString &name)

QBindable< QString >	bindableObjectName ()

bool	isWidgetType () const

bool	isWindowType () const

bool	signalsBlocked () const noexcept

bool	blockSignals (bool b) noexcept

QThread *	thread () const

void	moveToThread (QThread *thread)

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

void	killTimer (int id)

template<typename T >
T	findChild (const QString &aName=QString(), Qt::FindChildOptions options=Qt::FindChildrenRecursively) const

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

template<typename T >
QList< T >	findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const

const QObjectList &	children () const

void	setParent (QObject *parent)

void	installEventFilter (QObject *filterObj)

void	removeEventFilter (QObject *obj)

QMetaObject::Connection	connect (const QObject sender, const char signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const

bool	disconnect (const char signal=nullptr, const QObject receiver=nullptr, const char *member=nullptr) const

bool	disconnect (const QObject receiver, const char member=nullptr) const

void	dumpObjectTree () const

void	dumpObjectInfo () const

bool	setProperty (const char *name, const QVariant &value)

QVariant	property (const char *name) const

QList< QByteArray >	dynamicPropertyNames () const

QBindingStorage *	bindingStorage ()

const QBindingStorage *	bindingStorage () const

QObject *	parent () const

bool	inherits (const char *classname) const

Public Attributes
QList< QEvent::Type >	events

QPainter::RenderHints	hints

int	repaints = 0

QRectF	br = QRectF(-10, -10, 20, 20)

QRectF	lastExposedRect

QBrush	brush

bool	ignoreMouse = false

QList< QEvent::Type >	eventTypes

Protected Member Functions
bool	sceneEvent (QEvent *event) override

bool	event (QEvent *e) override

Protected Member Functions inherited from QGraphicsItem
void	updateMicroFocus ()

virtual bool	sceneEventFilter (QGraphicsItem watched, QEvent event)

virtual void	contextMenuEvent (QGraphicsSceneContextMenuEvent *event)

virtual void	dragEnterEvent (QGraphicsSceneDragDropEvent *event)

virtual void	dragLeaveEvent (QGraphicsSceneDragDropEvent *event)

virtual void	dragMoveEvent (QGraphicsSceneDragDropEvent *event)

virtual void	dropEvent (QGraphicsSceneDragDropEvent *event)

virtual void	focusInEvent (QFocusEvent *event)

virtual void	focusOutEvent (QFocusEvent *event)

virtual void	hoverEnterEvent (QGraphicsSceneHoverEvent *event)

virtual void	hoverMoveEvent (QGraphicsSceneHoverEvent *event)

virtual void	hoverLeaveEvent (QGraphicsSceneHoverEvent *event)

virtual void	keyPressEvent (QKeyEvent *event)

virtual void	keyReleaseEvent (QKeyEvent *event)

virtual void	mousePressEvent (QGraphicsSceneMouseEvent *event)

virtual void	mouseMoveEvent (QGraphicsSceneMouseEvent *event)

virtual void	mouseReleaseEvent (QGraphicsSceneMouseEvent *event)

virtual void	mouseDoubleClickEvent (QGraphicsSceneMouseEvent *event)

virtual void	wheelEvent (QGraphicsSceneWheelEvent *event)

virtual void	inputMethodEvent (QInputMethodEvent *event)

virtual QVariant	inputMethodQuery (Qt::InputMethodQuery query) const

virtual QVariant	itemChange (GraphicsItemChange change, const QVariant &value)

	QGraphicsItem (QGraphicsItemPrivate &dd, QGraphicsItem *parent)

void	addToIndex ()

void	removeFromIndex ()

void	prepareGeometryChange ()

Protected Member Functions inherited from QGraphicsEllipseItem
bool	supportsExtension (Extension extension) const override

void	setExtension (Extension extension, const QVariant &variant) override

QVariant	extension (const QVariant &variant) const override

Protected Member Functions inherited from QAbstractGraphicsShapeItem
	QAbstractGraphicsShapeItem (QAbstractGraphicsShapeItemPrivate &dd, QGraphicsItem *parent)

Protected Member Functions inherited from QObject
QObject *	sender () const

int	senderSignalIndex () const

int	receivers (const char *signal) const

bool	isSignalConnected (const QMetaMethod &signal) const

virtual void	timerEvent (QTimerEvent *event)

virtual void	childEvent (QChildEvent *event)

virtual void	customEvent (QEvent *event)

virtual void	connectNotify (const QMetaMethod &signal)

virtual void	disconnectNotify (const QMetaMethod &signal)

	QObject (QObjectPrivate &dd, QObject *parent=nullptr)

Additional Inherited Members
Public Types inherited from QGraphicsItem
enum	GraphicsItemFlag { ItemIsMovable = 0x1 , ItemIsSelectable = 0x2 , ItemIsFocusable = 0x4 , ItemClipsToShape = 0x8 , ItemClipsChildrenToShape = 0x10 , ItemIgnoresTransformations = 0x20 , ItemIgnoresParentOpacity = 0x40 , ItemDoesntPropagateOpacityToChildren = 0x80 , ItemStacksBehindParent = 0x100 , ItemUsesExtendedStyleOption = 0x200 , ItemHasNoContents = 0x400 , ItemSendsGeometryChanges = 0x800 , ItemAcceptsInputMethod = 0x1000 , ItemNegativeZStacksBehindParent = 0x2000 , ItemIsPanel = 0x4000 , ItemIsFocusScope = 0x8000 , ItemSendsScenePositionChanges = 0x10000 , ItemStopsClickFocusPropagation = 0x20000 , ItemStopsFocusHandling = 0x40000 , ItemContainsChildrenInShape = 0x80000 }

enum	GraphicsItemChange { ItemPositionChange , ItemVisibleChange = 2 , ItemEnabledChange , ItemSelectedChange , ItemParentChange , ItemChildAddedChange , ItemChildRemovedChange , ItemTransformChange , ItemPositionHasChanged , ItemTransformHasChanged , ItemSceneChange , ItemVisibleHasChanged , ItemEnabledHasChanged , ItemSelectedHasChanged , ItemParentHasChanged , ItemSceneHasChanged , ItemCursorChange , ItemCursorHasChanged , ItemToolTipChange , ItemToolTipHasChanged , ItemFlagsChange , ItemFlagsHaveChanged , ItemZValueChange , ItemZValueHasChanged , ItemOpacityChange , ItemOpacityHasChanged , ItemScenePositionHasChanged , ItemRotationChange , ItemRotationHasChanged , ItemScaleChange , ItemScaleHasChanged , ItemTransformOriginPointChange , ItemTransformOriginPointHasChanged }

enum	CacheMode { NoCache , ItemCoordinateCache , DeviceCoordinateCache }

enum	PanelModality { NonModal , PanelModal , SceneModal }

enum	{ Type = 1 , UserType = 65536 }

Public Types inherited from QGraphicsEllipseItem
enum	{ Type = 4 }

Public Slots inherited from QObject
void	deleteLater ()

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

void	objectNameChanged (const QString &objectName, QPrivateSignal)

Static Public Member Functions inherited from QObject
static QMetaObject::Connection	connect (const QObject sender, const char signal, const QObject receiver, const char member, Qt::ConnectionType=Qt::AutoConnection)

static QMetaObject::Connection	connect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)

template<typename Func1 , typename Func2 >
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object receiver, Func2 slot, Qt::ConnectionType type=Qt::AutoConnection)

static QMetaObject::Connection ::type	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 slot)

static QMetaObject::Connection ::type	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const QObject context, Func2 slot, Qt::ConnectionType type=Qt::AutoConnection)

template<typename Func1 , typename Func2 >
static std::enable_if< QtPrivate::FunctionPointer< Func2 >::ArgumentCount==-1 &&!std::is_convertible_v< Func2, const char * >, QMetaObject::Connection >::type	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 slot)

template<typename Func1 , typename Func2 >
static std::enable_if< QtPrivate::FunctionPointer< Func2 >::ArgumentCount==-1 &&!std::is_convertible_v< Func2, const char * >, QMetaObject::Connection >::type	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const QObject context, Func2 slot, Qt::ConnectionType type=Qt::AutoConnection)

static bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char member)

static bool	disconnect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &member)

static bool	disconnect (const QMetaObject::Connection &)

template<typename Func1 , typename Func2 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object receiver, Func2 slot)

template<typename Func1 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const QObject receiver, void **zero)

Protected Types inherited from QGraphicsItem
enum	Extension { UserExtension = 0x80000000 }

Protected Attributes inherited from QGraphicsItem
QScopedPointer< QGraphicsItemPrivate >	d_ptr

Protected Attributes inherited from QObject
QScopedPointer< QObjectData >	d_ptr

Properties inherited from QObject
QString	objectName
	the name of this object More...

Related Functions inherited from QGraphicsItem
T	qgraphicsitem_cast (QGraphicsItem *item)

Related Functions inherited from QObject
template< class T > T	qobject_cast (const QObject *object)

template< typename T > T	qFindChildqFindChildren (const QObject *obj, const QString &name)()

template< typename T > QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QString &name)()

	QObjectList

Detailed Description

Definition at line 221 of file tst_qgraphicsitem.cpp.

Constructor & Destructor Documentation

◆ EventTester()

EventTester::EventTester ( )

inline

Definition at line 1841 of file tst_qgraphicsscene.cpp.

Member Function Documentation

◆ boundingRect()

QRectF EventTester::boundingRect ( ) const

inlineoverridevirtual

This pure virtual function defines the outer bounds of the item as a rectangle; all painting must be restricted to inside an item's bounding rect. QGraphicsView uses this to determine whether the item requires redrawing.

Although the item's shape can be arbitrary, the bounding rect is always rectangular, and it is unaffected by the items' transformation.

If you want to change the item's bounding rectangle, you must first call prepareGeometryChange(). This notifies the scene of the imminent change, so that it can update its item geometry index; otherwise, the scene will be unaware of the item's new geometry, and the results are undefined (typically, rendering artifacts are left within the view).

Reimplement this function to let QGraphicsView determine what parts of the widget, if any, need to be redrawn.

Note: For shapes that paint an outline / stroke, it is important to include half the pen width in the bounding rect. It is not necessary to compensate for antialiasing, though.

Example:

See also: boundingRegion(), shape(), contains(), {The Graphics View Coordinate System}, prepareGeometryChange()

Implements QGraphicsItem.

Definition at line 233 of file tst_qgraphicsitem.cpp.

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◆ event()

bool EventTester::event ( QEvent * e )

overrideprotectedvirtual

This virtual function receives events to an object and should return true if the event e was recognized and processed.

The event() function can be reimplemented to customize the behavior of an object.

Make sure you call the parent event class implementation for all the events you did not handle.

Example:

See also: installEventFilter(), timerEvent(), QCoreApplication::sendEvent(), QCoreApplication::postEvent()

Reimplemented from QObject.

Definition at line 74 of file tst_bench_events.cpp.

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◆ foo()

int EventTester::foo ( int bar )

Definition at line 81 of file tst_bench_events.cpp.

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◆ paint()

void EventTester::paint	(	QPainter *	painter,
		const QStyleOptionGraphicsItem *	option,
		QWidget *	widget
	)

inlineoverridevirtual

This function, which is usually called by QGraphicsView, paints the contents of an item in local coordinates.

Reimplement this function in a QGraphicsItem subclass to provide the item's painting implementation, using painter. The option parameter provides style options for the item, such as its state, exposed area and its level-of-detail hints. The widget argument is optional. If provided, it points to the widget that is being painted on; otherwise, it is 0. For cached painting, widget is always 0.

The painter's pen is 0-width by default, and its pen is initialized to the QPalette::Text brush from the paint device's palette. The brush is initialized to QPalette::Window.

Make sure to constrain all painting inside the boundaries of boundingRect() to avoid rendering artifacts (as QGraphicsView does not clip the painter for you). In particular, when QPainter renders the outline of a shape using an assigned QPen, half of the outline will be drawn outside, and half inside, the shape you're rendering (e.g., with a pen width of 2 units, you must draw outlines 1 unit inside boundingRect()). QGraphicsItem does not support use of cosmetic pens with a non-zero width.

All painting is done in local coordinates.

Note: It is mandatory that an item will always redraw itself in the exact same way, unless update() was called; otherwise visual artifacts may occur. In other words, two subsequent calls to paint() must always produce the same output, unless update() was called between them.; Enabling caching for an item does not guarantee that paint() will be invoked only once by the Graphics View framework, even without any explicit call to update(). See the documentation of setCacheMode() for more details.

See also: setCacheMode(), QPen::width(), {Item Coordinates}, ItemUsesExtendedStyleOption

Implements QGraphicsItem.

Definition at line 236 of file tst_qgraphicsitem.cpp.

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◆ QGraphicsItem() [1/2]

QGraphicsItem::QGraphicsItem

explicit

Constructs a QGraphicsItem with the given parent item. It does not modify the parent object returned by QObject::parent().

If parent is \nullptr, you can add the item to a scene by calling QGraphicsScene::addItem(). The item will then become a top-level item.

See also: QGraphicsScene::addItem(), setParentItem()

Definition at line 159 of file qgraphicsitem.cpp.

◆ QGraphicsItem() [2/2]

QGraphicsItem::QGraphicsItem

Definition at line 435 of file qgraphicsitem.cpp.

◆ reset()

void EventTester::reset ( )

inline

Definition at line 251 of file tst_qgraphicsitem.cpp.

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◆ sceneEvent() [1/2]

bool EventTester::sceneEvent ( QEvent * event )

inlineoverridevirtual

This virtual function receives events to this item. Reimplement this function to intercept events before they are dispatched to the specialized event handlers contextMenuEvent(), focusInEvent(), focusOutEvent(), hoverEnterEvent(), hoverMoveEvent(), hoverLeaveEvent(), keyPressEvent(), keyReleaseEvent(), mousePressEvent(), mouseReleaseEvent(), mouseMoveEvent(), and mouseDoubleClickEvent().

Returns true if the event was recognized and handled; otherwise, (e.g., if the event type was not recognized,) false is returned.

event is the intercepted event.

Reimplemented from QGraphicsItem.

Definition at line 245 of file tst_qgraphicsitem.cpp.

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◆ sceneEvent() [2/2]

bool EventTester::sceneEvent ( QEvent * event )

inlineoverrideprotectedvirtual

This virtual function receives events to this item. Reimplement this function to intercept events before they are dispatched to the specialized event handlers contextMenuEvent(), focusInEvent(), focusOutEvent(), hoverEnterEvent(), hoverMoveEvent(), hoverLeaveEvent(), keyPressEvent(), keyReleaseEvent(), mousePressEvent(), mouseReleaseEvent(), mouseMoveEvent(), and mouseDoubleClickEvent().

Returns true if the event was recognized and handled; otherwise, (e.g., if the event type was not recognized,) false is returned.

event is the intercepted event.

Reimplemented from QGraphicsItem.

Definition at line 1848 of file tst_qgraphicsscene.cpp.

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◆ setGeometry()

void EventTester::setGeometry ( const QRectF & rect )

inline

Definition at line 226 of file tst_qgraphicsitem.cpp.

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Member Data Documentation

◆ br

QRectF EventTester::br = QRectF(-10, -10, 20, 20)

Definition at line 262 of file tst_qgraphicsitem.cpp.

◆ brush

QBrush EventTester::brush

Definition at line 264 of file tst_qgraphicsitem.cpp.

◆ events

QList<QEvent::Type> EventTester::events

Definition at line 259 of file tst_qgraphicsitem.cpp.

◆ eventTypes

QList<QEvent::Type> EventTester::eventTypes

Definition at line 1845 of file tst_qgraphicsscene.cpp.

◆ hints

QPainter::RenderHints EventTester::hints

Definition at line 260 of file tst_qgraphicsitem.cpp.

◆ ignoreMouse

bool EventTester::ignoreMouse = false

Definition at line 1844 of file tst_qgraphicsscene.cpp.

◆ lastExposedRect

QRectF EventTester::lastExposedRect

Definition at line 263 of file tst_qgraphicsitem.cpp.

◆ repaints

int EventTester::repaints = 0

Definition at line 261 of file tst_qgraphicsitem.cpp.

The documentation for this class was generated from the following files:

tests/auto/widgets/graphicsview/qgraphicsitem/tst_qgraphicsitem.cpp
tests/auto/widgets/graphicsview/qgraphicsscene/tst_qgraphicsscene.cpp
tests/benchmarks/corelib/kernel/events/tst_bench_events.cpp

Public Member Functions

Public Attributes

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ EventTester()

Member Function Documentation

◆ boundingRect()

◆ event()

◆ foo()

◆ paint()

◆ QGraphicsItem() [1/2]

◆ QGraphicsItem() [2/2]

◆ reset()

◆ sceneEvent() [1/2]

◆ sceneEvent() [2/2]

◆ setGeometry()

Member Data Documentation

◆ br

◆ brush

◆ events

◆ eventTypes

◆ hints

◆ ignoreMouse

◆ lastExposedRect

◆ repaints