#include <qquickrectangularshadow_p.h>

Inheritance diagram for QQuickRectangularShadow:

Collaboration diagram for QQuickRectangularShadow:

Signals
void	offsetChanged ()
void	colorChanged ()
void	blurChanged ()
void	radiusChanged ()
void	spreadChanged ()
void	cachedChanged ()
void	materialChanged ()
Signals inherited from QQuickItem
void	childrenRectChanged (const QRectF &)
void	baselineOffsetChanged (qreal)
void	stateChanged (const QString &)
void	focusChanged (bool)
void	activeFocusChanged (bool)
Q_REVISION(6, 7) void focusPolicyChanged(Qt	Q_REVISION (2, 1) void activeFocusOnTabChanged(bool)
void	parentChanged (QQuickItem *)
void	transformOriginChanged (TransformOrigin)
void	smoothChanged (bool)
void	antialiasingChanged (bool)
void	clipChanged (bool)
	Q_REVISION (2, 1) void windowChanged(QQuickWindow *window)
void	childrenChanged ()
void	opacityChanged ()
void	enabledChanged ()
void	visibleChanged ()
void	visibleChildrenChanged ()
void	rotationChanged ()
void	scaleChanged ()
void	xChanged ()
void	yChanged ()
void	widthChanged ()
void	heightChanged ()
void	zChanged ()
void	implicitWidthChanged ()
void	implicitHeightChanged ()
	Q_REVISION (2, 11) void containmentMaskChanged()
	Q_REVISION (6, 0) void paletteChanged()
	Q_REVISION (6, 0) void paletteCreated()
Signals inherited from QObject
void	destroyed (QObject *=nullptr)
	This signal is emitted immediately before the object obj is destroyed, after any instances of QPointer have been notified, and cannot be blocked.
void	objectNameChanged (const QString &objectName, QPrivateSignal)
	This signal is emitted after the object's name has been changed.

Public Member Functions
	QQuickRectangularShadow (QQuickItem *parent=nullptr)
	\qmltype RectangularShadow \inqmlmodule QtQuick.Effects \inherits Item
QVector2D	offset () const
	\qmlproperty vector2d QtQuick.Effects::RectangularShadow::offset
void	setOffset (const QVector2D &offset)
QColor	color () const
	\qmlproperty color QtQuick.Effects::RectangularShadow::color
void	setColor (const QColor &color)
qreal	blur () const
	\qmlproperty real QtQuick.Effects::RectangularShadow::blur
void	setBlur (qreal blur)
qreal	radius () const
	\qmlproperty real QtQuick.Effects::RectangularShadow::radius
void	setRadius (qreal radius)
qreal	spread () const
	\qmlproperty real QtQuick.Effects::RectangularShadow::spread
void	setSpread (qreal spread)
bool	isCached () const
	\qmlproperty bool QtQuick.Effects::RectangularShadow::cached This property allows the effect output pixels to be cached in order to improve the rendering performance.
void	setCached (bool cached)
QQuickItem *	material () const
	\qmlproperty item QtQuick.Effects::RectangularShadow::material
void	setMaterial (QQuickItem *item)
Public Member Functions inherited from QQuickItem
	QQuickItem (QQuickItem *parent=nullptr)
	Constructs a QQuickItem with the given parent.
	~QQuickItem () override
	Destroys the QQuickItem.
QQuickWindow *	window () const
	Returns the window in which this item is rendered.
QQuickItem *	parentItem () const
void	setParentItem (QQuickItem *parent)
void	stackBefore (const QQuickItem *)
	Moves this item to the index before the specified sibling item within the list of children.
void	stackAfter (const QQuickItem *)
	Moves this item to the index after the specified sibling item within the list of children.
QRectF	childrenRect ()
	\qmlpropertygroup QtQuick::Item::childrenRect \qmlproperty real QtQuick::Item::childrenRect.x \qmlproperty real QtQuick::Item::childrenRect.y \qmlproperty real QtQuick::Item::childrenRect.width \qmlproperty real QtQuick::Item::childrenRect.height \readonly
QList< QQuickItem * >	childItems () const
	Returns the children of this item.
bool	clip () const
	\qmlproperty bool QtQuick::Item::clip This property holds whether clipping is enabled.
void	setClip (bool)
QString	state () const
	\qmlproperty string QtQuick::Item::state
void	setState (const QString &)
qreal	baselineOffset () const
	\qmlproperty int QtQuick::Item::baselineOffset
void	setBaselineOffset (qreal)
QQmlListProperty< QQuickTransform >	transform ()
qreal	x () const
qreal	y () const
QPointF	position () const
void	setX (qreal)
void	setY (qreal)
void	setPosition (const QPointF &)
QBindable< qreal >	bindableX ()
QBindable< qreal >	bindableY ()
qreal	width () const
void	setWidth (qreal)
void	resetWidth ()
void	setImplicitWidth (qreal)
qreal	implicitWidth () const
	Returns the width of the item that is implied by other properties that determine the content.
QBindable< qreal >	bindableWidth ()
qreal	height () const
void	setHeight (qreal)
void	resetHeight ()
void	setImplicitHeight (qreal)
qreal	implicitHeight () const
QBindable< qreal >	bindableHeight ()
QSizeF	size () const
void	setSize (const QSizeF &size)
TransformOrigin	transformOrigin () const
void	setTransformOrigin (TransformOrigin)
QPointF	transformOriginPoint () const
void	setTransformOriginPoint (const QPointF &)
qreal	z () const
void	setZ (qreal)
qreal	rotation () const
void	setRotation (qreal)
qreal	scale () const
void	setScale (qreal)
qreal	opacity () const
void	setOpacity (qreal)
bool	isVisible () const
void	setVisible (bool)
bool	isEnabled () const
void	setEnabled (bool)
bool	smooth () const
void	setSmooth (bool)
bool	activeFocusOnTab () const
	\qmlproperty bool QtQuick::Item::activeFocusOnTab
void	setActiveFocusOnTab (bool)
bool	antialiasing () const
void	setAntialiasing (bool)
void	resetAntialiasing ()
Flags	flags () const
	Returns the item flags for this item.
void	setFlag (Flag flag, bool enabled=true)
	Enables the specified flag for this item if enabled is true; if enabled is false, the flag is disabled.
void	setFlags (Flags flags)
	Enables the specified flags for this item.
virtual QRectF	boundingRect () const
	Returns the extents of the item in its own coordinate system: a rectangle from {0, 0} to \l width() and \l height().
virtual QRectF	clipRect () const
	Returns the rectangular area within this item that is currently visible in \l viewportItem(), if there is a viewport and the \l ItemObservesViewport flag is set; otherwise, the extents of this item in its own coordinate system: a rectangle from {0, 0} to \l width() and \l height().
QQuickItem *	viewportItem () const
	If the \l ItemObservesViewport flag is set, returns the nearest parent with the \l ItemIsViewport flag.
bool	hasActiveFocus () const
bool	hasFocus () const
void	setFocus (bool)
void	setFocus (bool focus, Qt::FocusReason reason)
bool	isFocusScope () const
	Returns true if this item is a focus scope, and false otherwise.
QQuickItem *	scopedFocusItem () const
	If this item is a focus scope, this returns the item in its focus chain that currently has focus.
Qt::FocusPolicy	focusPolicy () const
void	setFocusPolicy (Qt::FocusPolicy policy)
	Sets the focus policy of this item to policy.
bool	isAncestorOf (const QQuickItem *child) const
	Returns `true` if this item is an ancestor of child (i.e., if this item is child's parent, or one of child's parent's ancestors).
Qt::MouseButtons	acceptedMouseButtons () const
	Returns the mouse buttons accepted by this item.
void	setAcceptedMouseButtons (Qt::MouseButtons buttons)
	Sets the mouse buttons accepted by this item to buttons.
bool	acceptHoverEvents () const
	Returns whether hover events are accepted by this item.
void	setAcceptHoverEvents (bool enabled)
	If enabled is true, this sets the item to accept hover events; otherwise, hover events are not accepted by this item.
bool	acceptTouchEvents () const
	Returns whether touch events are accepted by this item.
void	setAcceptTouchEvents (bool accept)
	If enabled is true, this sets the item to accept touch events; otherwise, touch events are not accepted by this item.
bool	isUnderMouse () const
void	grabMouse ()
void	ungrabMouse ()
bool	keepMouseGrab () const
	Returns whether mouse input should exclusively remain with this item.
void	setKeepMouseGrab (bool)
	Sets whether the mouse input should remain exclusively with this item.
bool	filtersChildMouseEvents () const
	Returns whether pointer events intended for this item's children should be filtered through this item.
void	setFiltersChildMouseEvents (bool filter)
	Sets whether pointer events intended for this item's children should be filtered through this item.
void	grabTouchPoints (const QList< int > &ids)
void	ungrabTouchPoints ()
bool	keepTouchGrab () const
	Returns whether the touch points grabbed by this item should exclusively remain with this item.
void	setKeepTouchGrab (bool)
	Sets whether the touch points grabbed by this item should remain exclusively with this item.
	Q_REVISION (2, 4) Q_INVOKABLE bool grabToImage(const QJSValue &callback
QSharedPointer< QQuickItemGrabResult >	grabToImage (const QSize &targetSize=QSize())
	Grabs the item into an in-memory image.
virtual Q_INVOKABLE bool	contains (const QPointF &point) const
	\qmlmethod bool QtQuick::Item::contains(point point)
QObject *	containmentMask () const
void	setContainmentMask (QObject *mask)
QTransform	itemTransform (QQuickItem , bool ) const
	\qmlmethod point QtQuick::Item::mapFromItem(Item item, real x, real y) \qmlmethod point QtQuick::Item::mapFromItem(Item item, point p) \qmlmethod rect QtQuick::Item::mapFromItem(Item item, real x, real y, real width, real height) \qmlmethod rect QtQuick::Item::mapFromItem(Item item, rect r)
QPointF	mapToScene (const QPointF &point) const
	Maps the given point in this item's coordinate system to the equivalent point within the scene's coordinate system, and returns the mapped coordinate.
QRectF	mapRectToItem (const QQuickItem *item, const QRectF &rect) const
	Maps the given rect in this item's coordinate system to the equivalent rectangular area within item's coordinate system, and returns the mapped rectangle value.
QRectF	mapRectToScene (const QRectF &rect) const
	Maps the given rect in this item's coordinate system to the equivalent rectangular area within the scene's coordinate system, and returns the mapped rectangle value.
QPointF	mapFromScene (const QPointF &point) const
	Maps the given point in the scene's coordinate system to the equivalent point within this item's coordinate system, and returns the mapped coordinate.
QRectF	mapRectFromItem (const QQuickItem *item, const QRectF &rect) const
	Maps the given rect in item's coordinate system to the equivalent rectangular area within this item's coordinate system, and returns the mapped rectangle value.
QRectF	mapRectFromScene (const QRectF &rect) const
	Maps the given rect in the scene's coordinate system to the equivalent rectangular area within this item's coordinate system, and returns the mapped rectangle value.
void	polish ()
	Schedules a polish event for this item.
Q_INVOKABLE QPointF	mapFromItem (const QQuickItem *item, const QPointF &point) const
	Maps the given point in item's coordinate system to the equivalent point within this item's coordinate system, and returns the mapped coordinate.
Q_INVOKABLE QPointF	mapFromItem (const QQuickItem *item, qreal x, qreal y)
Q_INVOKABLE QRectF	mapFromItem (const QQuickItem *item, const QRectF &rect) const
Q_INVOKABLE QRectF	mapFromItem (const QQuickItem *item, qreal x, qreal y, qreal width, qreal height) const
Q_INVOKABLE QPointF	mapToItem (const QQuickItem *item, const QPointF &point) const
	Maps the given point in this item's coordinate system to the equivalent point within item's coordinate system, and returns the mapped coordinate.
Q_INVOKABLE QPointF	mapToItem (const QQuickItem *item, qreal x, qreal y)
Q_INVOKABLE QRectF	mapToItem (const QQuickItem *item, const QRectF &rect) const
Q_INVOKABLE QRectF	mapToItem (const QQuickItem *item, qreal x, qreal y, qreal width, qreal height) const
	Q_REVISION (2, 7) Q_INVOKABLE QPointF mapFromGlobal(qreal x
	Q_REVISION (2, 7) Q_INVOKABLE QPointF mapFromGlobal(const QPointF &point) const
	Q_REVISION (2, 7) Q_INVOKABLE QPointF mapToGlobal(qreal x
	Q_REVISION (2, 7) Q_INVOKABLE QPointF mapToGlobal(const QPointF &point) const
Q_INVOKABLE void	forceActiveFocus ()
	\qmlmethod point QtQuick::Item::mapToItem(Item item, real x, real y) \qmlmethod point QtQuick::Item::mapToItem(Item item, point p) \qmlmethod rect QtQuick::Item::mapToItem(Item item, real x, real y, real width, real height) \qmlmethod rect QtQuick::Item::mapToItem(Item item, rect r)
Q_INVOKABLE void	forceActiveFocus (Qt::FocusReason reason)
	\qmlmethod QtQuick::Item::forceActiveFocus(Qt::FocusReason reason) This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Forces active focus on the item with the given reason.
	Q_REVISION (2, 1) Q_INVOKABLE QQuickItem *nextItemInFocusChain(bool forward
Q_INVOKABLE QQuickItem *	childAt (qreal x, qreal y) const
	\qmlmethod Item QtQuick::Item::childAt(real x, real y)
	Q_REVISION (6, 3) Q_INVOKABLE void ensurePolished()
	Q_REVISION (6, 3) Q_INVOKABLE void dumpItemTree() const
virtual bool	isTextureProvider () const
	Returns true if this item is a texture provider.
virtual QSGTextureProvider *	textureProvider () const
	Returns the texture provider for an item.
Public Member Functions inherited from QObject
Q_INVOKABLE	QObject (QObject *parent=nullptr)
	Constructs an object with parent object parent.
virtual	~QObject ()
	Destroys the object, deleting all its child objects.
virtual bool	eventFilter (QObject watched, QEvent event)
	Filters events if this object has been installed as an event filter for the watched object.
QString	objectName () const
Q_WEAK_OVERLOAD void	setObjectName (const QString &name)
	Sets the object's name to name.
void	setObjectName (QAnyStringView name)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
QBindable< QString >	bindableObjectName ()
bool	isWidgetType () const
	Returns `true` if the object is a widget; otherwise returns `false`.
bool	isWindowType () const
	Returns `true` if the object is a window; otherwise returns `false`.
bool	isQuickItemType () const
	Returns `true` if the object is a QQuickItem; otherwise returns `false`.
bool	isQmlObjectType () const
	Returns whether the object has been created by the QML engine or ownership has been explicitly set via QJSEngine::setObjectOwnership().
bool	signalsBlocked () const noexcept
	Returns `true` if signals are blocked; otherwise returns `false`.
bool	blockSignals (bool b) noexcept
	If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it).
QThread *	thread () const
	Returns the thread in which the object lives.
bool	moveToThread (QThread *thread QT6_DECL_NEW_OVERLOAD_TAIL)
	Changes the thread affinity for this object and its children and returns `true` on success.
int	startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer)
	This is an overloaded function that will start a timer of type timerType and a timeout of interval milliseconds.
int	startTimer (std::chrono::nanoseconds time, Qt::TimerType timerType=Qt::CoarseTimer)
void	killTimer (int id)
	Kills the timer with timer identifier, id.
void	killTimer (Qt::TimerId id)
template<typename T>
T	findChild (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	Returns the child of this object that can be cast into type T and that is called name, or \nullptr if there is no such object.
template<typename T>
QList< T >	findChildren (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects.
template<typename T>
T	findChild (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
template<typename T>
QList< T >	findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.
const QObjectList &	children () const
	Returns a list of child objects.
void	setParent (QObject *parent)
	Makes the object a child of parent.
void	installEventFilter (QObject *filterObj)
	Installs an event filter filterObj on this object.
void	removeEventFilter (QObject *obj)
	Removes an event filter object obj from this object.
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
	Dumps a tree of children to the debug output.
void	dumpObjectInfo () const
	Dumps information about signal connections, etc.
bool	setProperty (const char *name, const QVariant &value)
	Sets the value of the object's name property to value.
bool	setProperty (const char *name, QVariant &&value)
QVariant	property (const char *name) const
	Returns the value of the object's name property.
QList< QByteArray >	dynamicPropertyNames () const
QBindingStorage *	bindingStorage ()
const QBindingStorage *	bindingStorage () const
QObject *	parent () const
	Returns a pointer to the parent object.
bool	inherits (const char *classname) const
	Returns `true` if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns `false`.
Public Member Functions inherited from QQmlParserStatus
	QQmlParserStatus ()
virtual	~QQmlParserStatus ()

Protected Member Functions
void	componentComplete () override
	\reimp Derived classes should call the base class method before adding their own actions to perform at componentComplete.
void	geometryChange (const QRectF &newGeometry, const QRectF &oldGeometry) override
void	itemChange (ItemChange change, const ItemChangeData &value) override
	Called when change occurs for this item.
Protected Member Functions inherited from QQuickItem
bool	event (QEvent *) override
	\reimp
bool	isComponentComplete () const
	Returns true if construction of the QML component is complete; otherwise returns false.
bool	widthValid () const
	Returns whether the width property has been set explicitly.
bool	heightValid () const
	Returns whether the height property has been set explicitly.
void	setImplicitSize (qreal, qreal)
void	classBegin () override
	\reimp Derived classes should call the base class method before adding their own action to perform at classBegin.
virtual void	keyPressEvent (QKeyEvent *event)
	This event handler can be reimplemented in a subclass to receive key press events for an item.
virtual void	keyReleaseEvent (QKeyEvent *event)
	This event handler can be reimplemented in a subclass to receive key release events for an item.
virtual void	focusInEvent (QFocusEvent *)
	This event handler can be reimplemented in a subclass to receive focus-in events for an item.
virtual void	focusOutEvent (QFocusEvent *)
	This event handler can be reimplemented in a subclass to receive focus-out events for an item.
virtual void	mousePressEvent (QMouseEvent *event)
	This event handler can be reimplemented in a subclass to receive mouse press events for an item.
virtual void	mouseMoveEvent (QMouseEvent *event)
	This event handler can be reimplemented in a subclass to receive mouse move events for an item.
virtual void	mouseReleaseEvent (QMouseEvent *event)
	This event handler can be reimplemented in a subclass to receive mouse release events for an item.
virtual void	mouseDoubleClickEvent (QMouseEvent *event)
	This event handler can be reimplemented in a subclass to receive mouse double-click events for an item.
virtual void	mouseUngrabEvent ()
	This event handler can be reimplemented in a subclass to be notified when a mouse ungrab event has occurred on this item.
virtual void	touchUngrabEvent ()
	This event handler can be reimplemented in a subclass to be notified when a touch ungrab event has occurred on this item.
virtual void	touchEvent (QTouchEvent *event)
	This event handler can be reimplemented in a subclass to receive touch events for an item.
virtual void	hoverEnterEvent (QHoverEvent *event)
	This event handler can be reimplemented in a subclass to receive hover-enter events for an item.
virtual void	hoverMoveEvent (QHoverEvent *event)
	This event handler can be reimplemented in a subclass to receive hover-move events for an item.
virtual void	hoverLeaveEvent (QHoverEvent *event)
	This event handler can be reimplemented in a subclass to receive hover-leave events for an item.
virtual bool	childMouseEventFilter (QQuickItem , QEvent )
	Reimplement this method to filter the pointer events that are received by this item's children.
virtual bool	contextMenuEvent (QContextMenuEvent *event)
virtual QSGNode *	updatePaintNode (QSGNode , UpdatePaintNodeData )
	Called on the render thread when it is time to sync the state of the item with the scene graph.
virtual void	releaseResources ()
	This function is called when an item should release graphics resources which are not already managed by the nodes returned from QQuickItem::updatePaintNode().
virtual void	updatePolish ()
	This function should perform any layout as required for this item.
	QQuickItem (QQuickItemPrivate &dd, QQuickItem *parent=nullptr)
Protected Member Functions inherited from QObject
QObject *	sender () const
	Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns \nullptr.
int	senderSignalIndex () const
int	receivers (const char *signal) const
	Returns the number of receivers connected to the signal.
bool	isSignalConnected (const QMetaMethod &signal) const
virtual void	timerEvent (QTimerEvent *event)
	This event handler can be reimplemented in a subclass to receive timer events for the object.
virtual void	childEvent (QChildEvent *event)
	This event handler can be reimplemented in a subclass to receive child events.
virtual void	customEvent (QEvent *event)
	This event handler can be reimplemented in a subclass to receive custom events.
virtual void	connectNotify (const QMetaMethod &signal)
virtual void	disconnectNotify (const QMetaMethod &signal)
	QObject (QObjectPrivate &dd, QObject *parent=nullptr)

Properties
QVector2D	offset
QColor	color
qreal	blur
qreal	radius
qreal	spread
bool	cached
QQuickItem *	material
Properties inherited from QQuickItem
QQuickItem *	parent
	\qmlproperty Item QtQuick::Item::parent This property holds the visual parent of the item.
qreal	x
	\qmlproperty real QtQuick::Item::x \qmlproperty real QtQuick::Item::y \qmlproperty real QtQuick::Item::width \qmlproperty real QtQuick::Item::height
qreal	y
	Defines the item's y position relative to its parent.
qreal	z
	\qmlproperty real QtQuick::Item::z
qreal	width
	This property holds the width of this item.
qreal	height
	This property holds the height of this item.
qreal	opacity
	\qmlproperty real QtQuick::Item::opacity
bool	enabled
	\qmlproperty bool QtQuick::Item::enabled
bool	visible
	\qmlproperty bool QtQuick::Item::visible
Qt::FocusPolicy	focusPolicy
	\qmlproperty enumeration QtQuick::Item::focusPolicy
qreal	rotation
	\qmlproperty real QtQuick::Item::rotation This property holds the rotation of the item in degrees clockwise around its transformOrigin.
qreal	scale
	\qmlproperty real QtQuick::Item::scale This property holds the scale factor for this item.
TransformOrigin	transformOrigin
	\qmlproperty enumeration QtQuick::Item::transformOrigin This property holds the origin point around which scale and rotation transform.
QPointF	transformOriginPoint
QQmlListProperty< QQuickTransform >	transform
	\qmlproperty list<Transform> QtQuick::Item::transform
bool	smooth
	\qmlproperty bool QtQuick::Item::smooth
bool	antialiasing
	\qmlproperty bool QtQuick::Item::antialiasing
qreal	implicitWidth
qreal	implicitHeight
QObject *	containmentMask
	\qmlproperty QObject* QtQuick::Item::containmentMask
Properties inherited from QObject
QString	objectName
	the name of this object

Additional Inherited Members
Public Types inherited from QQuickItem
enum	Flag { ItemClipsChildrenToShape = 0x01 , ItemIsFocusScope = 0x04 , ItemHasContents = 0x08 , ItemAcceptsDrops = 0x10 , ItemIsViewport = 0x20 , ItemObservesViewport = 0x40 }
	\qmltype Item \nativetype QQuickItem \inherits QtObject \inqmlmodule QtQuick More...
enum	ItemChange { ItemChildAddedChange , ItemChildRemovedChange , ItemSceneChange , ItemVisibleHasChanged , ItemParentHasChanged , ItemOpacityHasChanged , ItemActiveFocusHasChanged , ItemRotationHasChanged , ItemAntialiasingHasChanged , ItemDevicePixelRatioHasChanged , ItemEnabledHasChanged , ItemScaleHasChanged , ItemTransformHasChanged }
	Used in conjunction with QQuickItem::itemChange() to notify the item about certain types of changes. More...
enum	TransformOrigin { TopLeft , Top , TopRight , Left , Center , Right , BottomLeft , Bottom , BottomRight }
	\variable QQuickItem::ItemChangeData::realValue The numeric value that has changed: \l {QQuickItem::opacity()}{opacity}, \l {QQuickItem::rotation()}{rotation}, or \l {QQuickItem::scale()}{scale}, or \l {QScreen::devicePixelRatio}{device pixel ratio}. More...
Public Slots inherited from QQuickItem
void	update ()
	Schedules a call to updatePaintNode() for this item.
Public Slots inherited from QObject
void	deleteLater ()
	\threadsafe
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)
	\threadsafe
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::ContextTypeForFunctor< Func2 >::ContextType context, Func2 &&slot, Qt::ConnectionType type=Qt::AutoConnection)
template<typename Func1, typename Func2>
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 &&slot)
static bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char member)
	\threadsafe
static bool	disconnect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &member)
static bool	disconnect (const QMetaObject::Connection &)
	Disconnect a 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)
Public Attributes inherited from QQuickItem
const QSize &	targetSize = QSize())
qreal y	const
Protected Attributes inherited from QObject
QScopedPointer< QObjectData >	d_ptr
Related Symbols inherited from QObject
template< class T > T	qobject_cast (const QObject *object)
	Returns the given object cast to type T if the object is of type T (or of a subclass); otherwise returns \nullptr.
template< typename T > T	qFindChildqFindChildren (const QObject *obj, const QString &name)()
template< typename T > QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QString &name)()
	QObjectList
	\macro Q_CLASSINFO(Name, Value)

Detailed Description

Definition at line 32 of file qquickrectangularshadow_p.h.

Constructor & Destructor Documentation

◆ QQuickRectangularShadow()

QT_BEGIN_NAMESPACE QQuickRectangularShadow::QQuickRectangularShadow ( QQuickItem * parent = nullptr )

\qmltype RectangularShadow \inqmlmodule QtQuick.Effects \inherits Item

Creates smoothed rectangle, suitable for example for shadow and glow effects.

RectangularShadow is a rounded rectangle with blur applied. The performance of RectangularShadow is much better than a general one that creates blurred shadow/glow of any shaped item.

The following example shows how to add a shadow to a \l Rectangle: \table 70% \row

\qml import QtQuick import QtQuick.Effects

... RectangularShadow { anchors.fill: myRectangle offset.x: -10 offset.y: -5 radius: myRectangle.radius blur: 30 spread: 10 color: Qt.darker(myRectangle.color, 1.6) } Rectangle { id: myRectangle anchors.centerIn: parent width: 200 height: 100 radius: 50 color: "#c0d0f0" } \endqml \endtable

The API of RectangularShadow is similar to CSS box-shadow, with color, offset, spread, and blur values. Additionally, RectangularShadow API contains:

\list

real \l radius: Controls the rounding radius applied to rectangle corners. Compared to CSS box-shadow, which inherits radius from the parent element, RectangularShadow expects user to set it. This allows you to use different radiuses and move the RectangularShadow separately from its parent item.
bool \l cached: Allows caching the blurred shadow texture. This increases memory usage while potentially improving rendering performance, especially with bigger shadows that don't change dynamically.
item \l material: Contains the ShaderEffect element of the RectangularShadow for advanced use. This allows, for example, extending the effect with a custom shader. \endlist

The rendering output also matches the CSS box-shadow, with few notable differences. These differences exist to make the RectangularShadow as high-performance as possible. \list

Blurring is calculated mathematically in the shader rather than using Gaussian blur, which CSS box-shadow implementations often use. This makes the shadow look slightly different, especially with larger blur values.
All the rectangle corners must have an even radius. When creating a shadow for a \l Rectangle with different radiuses, select the best-matching radius for the shadow or use an alternative shadow method, for example, \l MultiEffect. \endlist

Here is a table with screenshots to compare the rendering output of RectangularShadow and CSS box-shadow in the Chrome browser. The right-most element is RectangularShadow in blur multiplied with {1.2} (so 24, 48, 48) for a closer match.

\table 80% \header

type
CSS box-shadow
RectangularShadow
RectangularShadow + extra blur \row
offset: (0, 0) \br blur: 20 \br spread: 0 \br
\row
offset: (-10, -20) \br blur: 40 \br spread: 0 \br
\row
offset: (-10, -20) \br blur: 40 \br spread: 10 \br
\endtable

RectangularShadow extends the shadow size with an exact amount regarding the blur amount, while some other shadows (including CSS box-shadow) have a multiplier for the size. The size of the shadow item inside a RectangularShadow is: \badcode width = rectangularShadow.width + 2 * blur + 2 * spread height = rectangularShadow.height + 2 * blur + 2 * spread

For example, the shadow item size of the code below is 280x180 pixels. Radius or offset values do not affect the shadow item size. \qml RectangularShadow { width: 200 height: 100 blur: 30 spread: 10 radius: 20 } \endqml

\qmlproperty bool QtQuick.Effects::RectangularShadow::antialiasing

Used to decide if the shadow should use antialiasing or not. When this is true, a single pixel antialiasing is used even when the \l blur is 0.

The default value is true.

Definition at line 153 of file qquickrectangularshadow.cpp.

Member Function Documentation

◆ blur()

qreal QQuickRectangularShadow::blur ( ) const

\qmlproperty real QtQuick.Effects::RectangularShadow::blur

This property defines how many pixels outside the item area are reached by the shadow.

The value ranges from 0.0 (no blur) to inf (infinite blur). The default value is 10.0.

Note: To match with the CSS box-shadow rendering output, the optimal blur amount is something like: {1.2 * cssBlur}

Definition at line 223 of file qquickrectangularshadow.cpp.

◆ blurChanged

void QQuickRectangularShadow::blurChanged ( )

signal

◆ cachedChanged

void QQuickRectangularShadow::cachedChanged ( )

signal

◆ color()

QColor QQuickRectangularShadow::color ( ) const

\qmlproperty color QtQuick.Effects::RectangularShadow::color

This property defines the RGBA color value that is used for the shadow.

The default value is {Qt.rgba(0.0, 0.0, 0.0, 1.0)} (black).

Definition at line 193 of file qquickrectangularshadow.cpp.

◆ colorChanged

void QQuickRectangularShadow::colorChanged ( )

signal

◆ componentComplete()

void QQuickRectangularShadow::componentComplete ( )

overrideprotectedvirtual

\reimp Derived classes should call the base class method before adding their own actions to perform at componentComplete.

Reimplemented from QQuickItem.

Definition at line 419 of file qquickrectangularshadow.cpp.

◆ geometryChange()

void QQuickRectangularShadow::geometryChange	(	const QRectF &	newGeometry,
		const QRectF &	oldGeometry )

overrideprotectedvirtual

Since: 6.0

This function is called to handle this item's changes in geometry from oldGeometry to newGeometry. If the two geometries are the same, it doesn't do anything.

Derived classes must call the base class method within their implementation.

Reimplemented from QQuickItem.

Definition at line 426 of file qquickrectangularshadow.cpp.

◆ isCached()

bool QQuickRectangularShadow::isCached ( ) const

\qmlproperty bool QtQuick.Effects::RectangularShadow::cached This property allows the effect output pixels to be cached in order to improve the rendering performance.

Every time the effect properties are changed, the pixels in the cache must be updated. Memory consumption is increased, because an extra buffer of memory is required for storing the effect output.

It is recommended to disable the cache when the source or the effect properties are animated.

The default value is false.

Definition at line 322 of file qquickrectangularshadow.cpp.

◆ itemChange()

void QQuickRectangularShadow::itemChange	(	ItemChange	change,
		const ItemChangeData &	value )

overrideprotectedvirtual

Called when change occurs for this item.

value contains extra information relating to the change, when applicable.

If you re-implement this method in a subclass, be sure to call

QQuickItem::itemChange(change, value);

QQuickItem::itemChange

virtual void itemChange(ItemChange, const ItemChangeData &)

Called when change occurs for this item.

Definition qquickitem.cpp:5867

value

EGLOutputLayerEXT EGLint EGLAttrib value

[3]

Definition qeglstreamconvenience_p.h:46

typically at the end of your implementation, to ensure the \l windowChanged() signal will be emitted.

Reimplemented from QQuickItem.

Definition at line 434 of file qquickrectangularshadow.cpp.

◆ material()

QQuickItem * QQuickRectangularShadow::material ( ) const

\qmlproperty item QtQuick.Effects::RectangularShadow::material

This property contains the \l ShaderEffect item of the shadow. You can use this property to visualize the reach of the shadow, because the effect item often has different position and size than the RectangularShadow item, due to \l blur, \l offset and \l spread.

The material can also be replaced with a custom one. The default material is a \l ShaderEffect with the following \l {ShaderEffect::}{fragmentShader}:

\badcode #version 440

layout(location = 0) in vec2 texCoord; layout(location = 1) in vec2 fragCoord; layout(location = 0) out vec4 fragColor;

layout(std140, binding = 0) uniform buf { mat4 qt_Matrix; float qt_Opacity; vec4 color; vec3 iResolution; vec2 rectSize; float radius; float blur; };

float roundedBox(vec2 centerPos, vec2 size, float radii) { return length(max(abs(centerPos) - size + radii, 0.0)) - radii; }

void main() { float box = roundedBox(fragCoord - iResolution.xy * 0.5, rectSize, radius); float a = 1.0 - smoothstep(0.0, blur, box); fragColor = color * qt_Opacity * a * a; }

Qt Quick Effect Maker contains the RectangularShadow node that can be used as a starting point for a custom material. You can directly use the exported effect containing that node as a RectangularShadow material. \qml RectangularShadow { ... material: MyShadowEffect { } } \endqml

To return to use the default material, set the material property to null.

Definition at line 392 of file qquickrectangularshadow.cpp.

◆ materialChanged

void QQuickRectangularShadow::materialChanged ( )

signal

◆ offset()

QVector2D QQuickRectangularShadow::offset ( ) const

\qmlproperty vector2d QtQuick.Effects::RectangularShadow::offset

This property defines the position offset that is used for the shadow. This offset is appended to the shadow position, relative to the RectangularShadow item position.

The default value is {Qt.vector2d(0.0, 0.0)} (no offset).

Definition at line 168 of file qquickrectangularshadow.cpp.

◆ offsetChanged

void QQuickRectangularShadow::offsetChanged ( )

signal

◆ radius()

qreal QQuickRectangularShadow::radius ( ) const

\qmlproperty real QtQuick.Effects::RectangularShadow::radius

This property defines the corner radius that is used to draw a shadow with rounded corners.

The value ranges from 0.0 to half of the effective width or height of the item, whichever is smaller.

The default value is 0.

Definition at line 253 of file qquickrectangularshadow.cpp.

◆ radiusChanged

void QQuickRectangularShadow::radiusChanged ( )

signal

◆ setBlur()

void QQuickRectangularShadow::setBlur ( qreal blur )

Definition at line 229 of file qquickrectangularshadow.cpp.

◆ setCached()

void QQuickRectangularShadow::setCached ( bool cached )

Definition at line 328 of file qquickrectangularshadow.cpp.

◆ setColor()

void QQuickRectangularShadow::setColor ( const QColor & color )

Definition at line 199 of file qquickrectangularshadow.cpp.

◆ setMaterial()

void QQuickRectangularShadow::setMaterial ( QQuickItem * item )

Definition at line 398 of file qquickrectangularshadow.cpp.

◆ setOffset()

void QQuickRectangularShadow::setOffset ( const QVector2D & offset )

Definition at line 174 of file qquickrectangularshadow.cpp.

◆ setRadius()

void QQuickRectangularShadow::setRadius ( qreal radius )

Definition at line 259 of file qquickrectangularshadow.cpp.

◆ setSpread()

void QQuickRectangularShadow::setSpread ( qreal spread )

Definition at line 296 of file qquickrectangularshadow.cpp.

◆ spread()

qreal QQuickRectangularShadow::spread ( ) const

\qmlproperty real QtQuick.Effects::RectangularShadow::spread

This property defines how much the shadow is spread (extended) in pixels. This spread is appended to the shadow size, relative to the RectangularShadow item size.

The value ranges from -inf to inf. The default value is 0.0.

Note: The radius behavior with spread matches to CSS box-shadow standard. So when the spread is smaller than the radius, the shadow radius grows by the amount of spread. When the spread grows bigger, radius grows only partially. See \l {https://www.w3.org/TR/css-backgrounds-3/#shadow-shape}. If the shadow radius should grow in sync when the shadow grows (like with the Firefox CSS box-shadow implementation), increase the RectangularShadow width and height instead of using the spread.

Definition at line 290 of file qquickrectangularshadow.cpp.

◆ spreadChanged

void QQuickRectangularShadow::spreadChanged ( )

signal

Property Documentation

◆ blur

qreal QQuickRectangularShadow::blur

readwrite

Definition at line 37 of file qquickrectangularshadow_p.h.

◆ cached

bool QQuickRectangularShadow::cached

readwrite

Definition at line 40 of file qquickrectangularshadow_p.h.

◆ color

QColor QQuickRectangularShadow::color

readwrite

Definition at line 36 of file qquickrectangularshadow_p.h.

◆ material

QQuickItem * QQuickRectangularShadow::material

readwrite

Definition at line 41 of file qquickrectangularshadow_p.h.

◆ offset

QVector2D QQuickRectangularShadow::offset

readwrite

Definition at line 35 of file qquickrectangularshadow_p.h.

Referenced by testing.tools.fixup_pdf_template.TemplateProcessor::insert_xref_entry(), and testing.tools.fixup_pdf_template.TemplateProcessor::process_line().

◆ radius

qreal QQuickRectangularShadow::radius

readwrite

Definition at line 38 of file qquickrectangularshadow_p.h.

◆ spread

qreal QQuickRectangularShadow::spread

readwrite

Definition at line 39 of file qquickrectangularshadow_p.h.

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

qtdeclarative/src/effects/qquickrectangularshadow_p.h (dfde7334b2c34b8e19c9267217264ecd78f093d8)
qtdeclarative/src/effects/qquickrectangularshadow.cpp (9feb48e32576225e59e3033b26fa7d8645368c5e)

Signals

Public Member Functions

Protected Member Functions

Properties

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QQuickRectangularShadow()

Member Function Documentation

◆ blur()

◆ blurChanged

◆ cachedChanged

◆ color()

◆ colorChanged

◆ componentComplete()

◆ geometryChange()

◆ isCached()

◆ itemChange()

◆ material()

◆ materialChanged

◆ offset()

◆ offsetChanged

◆ radius()

◆ radiusChanged

◆ setBlur()

◆ setCached()

◆ setColor()

◆ setMaterial()

◆ setOffset()

◆ setRadius()

◆ setSpread()

◆ spread()

◆ spreadChanged

Property Documentation

◆ blur

◆ cached

◆ color

◆ material

◆ offset

◆ radius

◆ spread