#include <qquickitem_p.h>

Inheritance diagram for QQuickItemPrivate:

Collaboration diagram for QQuickItemPrivate:

Classes
struct	ChangeListener

struct	ExtraData

Public Types
enum	ChangeType { Geometry = 0x01 , SiblingOrder = 0x02 , Visibility = 0x04 , Opacity = 0x08 , Destroyed = 0x10 , Parent = 0x20 , Children = 0x40 , Rotation = 0x80 , ImplicitWidth = 0x100 , ImplicitHeight = 0x200 , Enabled = 0x400 , Focus = 0x800 , AllChanges = 0xFFFFFFFF }

enum	ExtraDataTag { NoTag = 0x1 , LeftMouseButtonAccepted = 0x2 }

enum	DirtyType { TransformOrigin = 0x00000001 , Transform = 0x00000002 , BasicTransform = 0x00000004 , Position = 0x00000008 , Size = 0x00000010 , ZValue = 0x00000020 , Content = 0x00000040 , Smooth = 0x00000080 , OpacityValue = 0x00000100 , ChildrenChanged = 0x00000200 , ChildrenStackingChanged = 0x00000400 , ParentChanged = 0x00000800 , Clip = 0x00001000 , Window = 0x00002000 , EffectReference = 0x00008000 , Visible = 0x00010000 , HideReference = 0x00020000 , Antialiasing = 0x00040000 , TransformUpdateMask , ComplexTransformUpdateMask = Transform \| Window , ContentUpdateMask = Size \| Content \| Smooth \| Window \| Antialiasing , ChildrenUpdateMask = ChildrenChanged \| ChildrenStackingChanged \| EffectReference \| Window }

Public Types inherited from QObjectPrivate
typedef void(*	StaticMetaCallFunction) (QObject , QMetaObject::Call, int, void *)

using	ConnectionDataPointer = QExplicitlySharedDataPointer<ConnectionData>

Public Member Functions
	QQuickItemPrivate ()

	~QQuickItemPrivate () override

void	init (QQuickItem *parent)

QQmlListProperty< QObject >	data ()

QQmlListProperty< QObject >	resources ()

QQmlListProperty< QQuickItem >	children ()

QQmlListProperty< QQuickItem >	visibleChildren ()

QQmlListProperty< QQuickState >	states ()

QQmlListProperty< QQuickTransition >	transitions ()

QString	state () const

void	setState (const QString &)

QQuickAnchorLine	left () const

QQuickAnchorLine	right () const

QQuickAnchorLine	horizontalCenter () const

QQuickAnchorLine	top () const

QQuickAnchorLine	bottom () const

QQuickAnchorLine	verticalCenter () const

QQuickAnchorLine	baseline () const

void	localizedTouchEvent (const QTouchEvent event, bool isFiltering, QMutableTouchEvent localized)

bool	hasPointerHandlers () const

bool	hasEnabledHoverHandlers () const

virtual void	addPointerHandler (QQuickPointerHandler *h)

virtual void	removePointerHandler (QQuickPointerHandler *h)

void	_q_resourceObjectDeleted (QObject *)

quint64	_q_createJSWrapper (QQmlV4ExecutionEnginePtr engine)

template<typename Fn , typename ... Args>
void	notifyChangeListeners (QQuickItemPrivate::ChangeTypes changeTypes, Fn &&function, Args &&...args)

virtual void	registerAsContainmentMask (QQuickItem *, bool)

QQuickAnchors *	anchors () const
	\qmlpropertygroup QtQuick::Item::anchors \qmlproperty AnchorLine QtQuick::Item::anchors.top \qmlproperty AnchorLine QtQuick::Item::anchors.bottom \qmlproperty AnchorLine QtQuick::Item::anchors.left \qmlproperty AnchorLine QtQuick::Item::anchors.right \qmlproperty AnchorLine QtQuick::Item::anchors.horizontalCenter \qmlproperty AnchorLine QtQuick::Item::anchors.verticalCenter \qmlproperty AnchorLine QtQuick::Item::anchors.baseline

Qt::MouseButtons	acceptedMouseButtons () const

void	addItemChangeListener (QQuickItemChangeListener *listener, ChangeTypes types)

void	updateOrAddItemChangeListener (QQuickItemChangeListener *listener, ChangeTypes types)

void	removeItemChangeListener (QQuickItemChangeListener *, ChangeTypes types)

void	updateOrAddGeometryChangeListener (QQuickItemChangeListener *listener, QQuickGeometryChange types)

void	updateOrRemoveGeometryChangeListener (QQuickItemChangeListener *listener, QQuickGeometryChange types)

QQuickStateGroup *	_states ()

QQuickItem::TransformOrigin	origin () const

QString	dirtyToString () const

void	dirty (DirtyType)

void	addToDirtyList ()

void	removeFromDirtyList ()

void	setCulled (bool)

QSGContext *	sceneGraphContext () const

QSGRenderContext *	sceneGraphRenderContext () const

QList< QQuickItem * >	paintOrderChildItems () const

void	addChild (QQuickItem *)

void	removeChild (QQuickItem *)

void	siblingOrderChanged ()

void	markSortedChildrenDirty (QQuickItem *child)

void	refWindow (QQuickWindow *)

void	derefWindow ()

void	updateSubFocusItem (QQuickItem *scope, bool focus)
	Clears all sub focus items from scope.

bool	setFocusIfNeeded (QEvent::Type)

Qt::FocusReason	lastFocusChangeReason () const

void	setLastFocusChangeReason (Qt::FocusReason reason)

QTransform	windowToItemTransform () const
	Returns a transform that maps points from window space into item space.

QTransform	itemToWindowTransform () const
	Returns a transform that maps points from item space into window space.

void	itemToParentTransform (QTransform *) const
	Modifies t with this item's local transform relative to its parent.

QTransform	globalToWindowTransform () const
	Returns a transform that maps points from global space into window space.

QTransform	windowToGlobalTransform () const
	Returns a transform that maps points from window space into global space.

void	setX (qreal x)

void	xChanged ()

	Q_OBJECT_COMPAT_PROPERTY (QQuickItemPrivate, qreal, x, &QQuickItemPrivate::setX, &QQuickItemPrivate::xChanged)

void	setY (qreal y)

void	yChanged ()

	Q_OBJECT_COMPAT_PROPERTY (QQuickItemPrivate, qreal, y, &QQuickItemPrivate::setY, &QQuickItemPrivate::yChanged)

void	setWidth (qreal width)

void	widthChanged ()

	Q_OBJECT_COMPAT_PROPERTY (QQuickItemPrivate, qreal, width, &QQuickItemPrivate::setWidth, &QQuickItemPrivate::widthChanged)

void	setHeight (qreal height)

void	heightChanged ()

	Q_OBJECT_COMPAT_PROPERTY (QQuickItemPrivate, qreal, height, &QQuickItemPrivate::setHeight, &QQuickItemPrivate::heightChanged)

bool	widthValid () const

bool	heightValid () const

qreal	z () const

qreal	scale () const

qreal	rotation () const

qreal	opacity () const

void	setAccessible ()

virtual qreal	getImplicitWidth () const

virtual qreal	getImplicitHeight () const

virtual void	implicitWidthChanged ()

virtual void	implicitHeightChanged ()

void	setImplicitAntialiasing (bool antialiasing)

void	resolveLayoutMirror ()

void	setImplicitLayoutMirror (bool mirror, bool inherit)

void	setLayoutMirror (bool mirror)

bool	isMirrored () const

void	emitChildrenRectChanged (const QRectF &rect)

QPointF	computeTransformOrigin () const

virtual bool	transformChanged (QQuickItem *transformedItem)

QPointF	adjustedPosForTransform (const QPointF &centroid, const QPointF &startPos, const QVector2D &activeTranslatation, qreal startScale, qreal activeScale, qreal startRotation, qreal activeRotation)

QQuickDeliveryAgent *	deliveryAgent ()

QQuickDeliveryAgentPrivate *	deliveryAgentPrivate ()

QQuickDeliveryAgent *	ensureSubsceneDeliveryAgent ()

void	deliverKeyEvent (QKeyEvent *)

bool	filterKeyEvent (QKeyEvent *, bool post)

void	deliverShortcutOverrideEvent (QKeyEvent *)

void	deliverPointerEvent (QEvent *)

bool	anyPointerHandlerWants (const QPointerEvent *event, const QEventPoint &point) const

virtual bool	handlePointerEvent (QPointerEvent *, bool avoidGrabbers=false)

virtual void	setVisible (bool visible)

bool	isTransparentForPositioner () const

void	setTransparentForPositioner (bool trans)

bool	calcEffectiveVisible () const

bool	setEffectiveVisibleRecur (bool)

bool	calcEffectiveEnable () const

void	setEffectiveEnableRecur (QQuickItem *scope, bool)

QSGTransformNode *	itemNode ()

QSGNode *	childContainerNode ()

QSGOpacityNode *	opacityNode () const

QQuickDefaultClipNode *	clipNode () const

QSGRootNode *	rootNode () const

virtual QSGTransformNode *	createTransformNode ()

void	refFromEffectItem (bool hide)

void	recursiveRefFromEffectItem (int refs)

void	derefFromEffectItem (bool unhide)

void	itemChange (QQuickItem::ItemChange, const QQuickItem::ItemChangeData &)

void	enableSubtreeChangeNotificationsForParentHierachy ()

virtual void	mirrorChange ()

void	setHasCursorInChild (bool hasCursor)

void	setHasHoverInChild (bool hasHover)

virtual void	updatePolish ()

virtual void	dumpItemTree (int indent) const

QLayoutPolicy	sizePolicy () const

void	setSizePolicy (const QLayoutPolicy::Policy &horizontalPolicy, const QLayoutPolicy::Policy &verticalPolicy)

Public Member Functions inherited from QObjectPrivate
void	ensureExtraData ()

	QObjectPrivate (int version=QObjectPrivateVersion)

virtual	~QObjectPrivate ()

void	deleteChildren ()

void	clearBindingStorage ()

void	checkForIncompatibleLibraryVersion (int version) const

void	setParent_helper (QObject *)

void	moveToThread_helper ()

void	setThreadData_helper (QThreadData currentData, QThreadData targetData, QBindingStatus *status)

QObjectList	receiverList (const char *signal) const

void	ensureConnectionData ()

void	addConnection (int signal, Connection *c)

int	signalIndex (const char signalName, const QMetaObject *meta=nullptr) const

bool	isSignalConnected (uint signalIdx, bool checkDeclarative=true) const

bool	maybeSignalConnected (uint signalIndex) const

bool	isDeclarativeSignalConnected (uint signalIdx) const

void	connectNotify (const QMetaMethod &signal)

void	disconnectNotify (const QMetaMethod &signal)

void	reinitBindingStorageAfterThreadMove ()

virtual std::string	flagsForDumping () const

virtual void	writeToDebugStream (QDebug &) const

QtPrivate::QPropertyAdaptorSlotObject *	getPropertyAdaptorSlotObject (const QMetaProperty &property)

Public Member Functions inherited from QObjectData
	QObjectData ()=default

virtual	~QObjectData ()=0

QMetaObject *	dynamicMetaObject () const

Public Member Functions inherited from QQuickPaletteProviderPrivateBase< QQuickItem, QQuickItemPrivate >
virtual	~QQuickPaletteProviderPrivateBase ()=default

virtual QQuickPalette *	palette () const

virtual void	setPalette (QQuickPalette *p)

virtual void	resetPalette ()

virtual bool	providesPalette () const

QPalette	defaultPalette () const override

QPalette	parentPalette (const QPalette &fallbackPalette) const override

void	inheritPalette (const QPalette &parentPalette)

virtual void	updateChildrenPalettes (const QPalette &parentPalette)

Public Member Functions inherited from QQuickAbstractPaletteProvider
virtual	~QQuickAbstractPaletteProvider ()=default

Static Public Member Functions
static QQuickItemPrivate *	get (QQuickItem *item)

static const QQuickItemPrivate *	get (const QQuickItem *item)

static void	data_append (QQmlListProperty< QObject > , QObject )

static qsizetype	data_count (QQmlListProperty< QObject > *)
	\qmlproperty list<QtObject> QtQuick::Item::data \qmldefault

static QObject *	data_at (QQmlListProperty< QObject > *, qsizetype)

static void	data_clear (QQmlListProperty< QObject > *)

static void	data_removeLast (QQmlListProperty< QObject > *)

static QObject *	resources_at (QQmlListProperty< QObject > *, qsizetype)

static void	resources_append (QQmlListProperty< QObject > , QObject )

static qsizetype	resources_count (QQmlListProperty< QObject > *)

static void	resources_clear (QQmlListProperty< QObject > *)

static void	resources_removeLast (QQmlListProperty< QObject > *)

static void	children_append (QQmlListProperty< QQuickItem > , QQuickItem )

static qsizetype	children_count (QQmlListProperty< QQuickItem > *)

static QQuickItem *	children_at (QQmlListProperty< QQuickItem > *, qsizetype)

static void	children_clear (QQmlListProperty< QQuickItem > *)

static void	children_removeLast (QQmlListProperty< QQuickItem > *)

static qsizetype	visibleChildren_count (QQmlListProperty< QQuickItem > *prop)

static QQuickItem *	visibleChildren_at (QQmlListProperty< QQuickItem > *prop, qsizetype index)

static qsizetype	transform_count (QQmlListProperty< QQuickTransform > *list)

static void	transform_append (QQmlListProperty< QQuickTransform > list, QQuickTransform )

static QQuickTransform *	transform_at (QQmlListProperty< QQuickTransform > *list, qsizetype)

static void	transform_clear (QQmlListProperty< QQuickTransform > *list)

static bool	focusNextPrev (QQuickItem *item, bool forward)
	QQuickItemPrivate::focusNextPrev focuses the next/prev item in the tab-focus-chain.

static QQuickItem *	nextTabChildItem (const QQuickItem *item, int start)

static QQuickItem *	prevTabChildItem (const QQuickItem *item, int start)

static QQuickItem *	nextPrevItemInTabFocusChain (QQuickItem *item, bool forward, bool wrap=true)

static bool	canAcceptTabFocus (QQuickItem *item)

Static Public Member Functions inherited from QObjectPrivate
static bool	removeConnection (Connection *c)

static QObjectPrivate *	get (QObject *o)

static const QObjectPrivate *	get (const QObject *o)

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

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

static QMetaObject::Connection	connectImpl (const QObject sender, int signal_index, const QObject receiver, void *slot, QtPrivate::QSlotObjectBase slotObj, int type, const int types, const QMetaObject senderMetaObject)

static QMetaObject::Connection	connect (const QObject sender, int signal_index, QtPrivate::QSlotObjectBase slotObj, Qt::ConnectionType type)

static QMetaObject::Connection	connect (const QObject sender, int signal_index, const QObject receiver, QtPrivate::QSlotObjectBase *slotObj, Qt::ConnectionType type)

static bool	disconnect (const QObject sender, int signal_index, void *slot)

static bool	disconnect (const QObject sender, int signal_index, const QObject receiver, void **slot)

Public Attributes
QLazilyAllocated< ExtraData, ExtraDataTags >	extra

QQuickAnchors *	_anchors

QVector< QQuickItemPrivate::ChangeListener >	changeListeners

QQuickStateGroup *	_stateGroup

quint32	flags:7

quint32	widthValidFlag:1

quint32	heightValidFlag:1

quint32	componentComplete:1

quint32	keepMouse:1

quint32	keepTouch:1

quint32	hoverEnabled:1

quint32	smooth:1

quint32	antialiasing:1

quint32	focus:1

quint32	activeFocus:1

quint32	notifiedFocus:1

quint32	notifiedActiveFocus:1

quint32	filtersChildMouseEvents:1

quint32	explicitVisible:1

quint32	effectiveVisible:1

quint32	explicitEnable:1

quint32	effectiveEnable:1

quint32	polishScheduled:1

quint32	inheritedLayoutMirror:1

quint32	effectiveLayoutMirror:1

quint32	isMirrorImplicit:1

quint32	inheritMirrorFromParent:1

quint32	inheritMirrorFromItem:1

quint32	isAccessible:1

quint32	culled:1

quint32	hasCursor:1

quint32	subtreeCursorEnabled:1

quint32	subtreeHoverEnabled:1

quint32	activeFocusOnTab:1

quint32	implicitAntialiasing:1

quint32	antialiasingValid:1

quint32	isTabFence:1

quint32	replayingPressEvent:1

quint32	touchEnabled:1

quint32	hasCursorHandler:1

quint32	maybeHasSubsceneDeliveryAgent:1

quint32	subtreeTransformChangedEnabled:1

quint32	inDestructor:1

quint32	focusReason:4

quint32	focusPolicy:4

quint32	dirtyAttributes

QQuickItem *	nextDirtyItem

QQuickItem **	prevDirtyItem

QQuickWindow *	window

int	windowRefCount

QQuickItem *	parentItem

QList< QQuickItem * >	childItems

QList< QQuickItem * > *	sortedChildItems

QPointer< QQuickItem >	subFocusItem

qreal	implicitWidth

qreal	implicitHeight

qreal	baselineOffset

QList< QQuickTransform * >	transforms

QSGTransformNode *	itemNodeInstance

QSGNode *	paintNode

QLayoutPolicy	szPolicy

Public Attributes inherited from QObjectPrivate
ExtraData *	extraData

QAtomicPointer< QThreadData >	threadData

QAtomicPointer< ConnectionData >	connections

union {

QObject * currentChildBeingDeleted

QAbstractDeclarativeData * declarativeData

};

QAtomicPointer< QtSharedPointer::ExternalRefCountData >	sharedRefcount

Public Attributes inherited from QObjectData
QObject *	q_ptr

QObject *	parent

QObjectList	children

uint	isWidget: 1

uint	blockSig: 1

uint	wasDeleted: 1

uint	isDeletingChildren: 1

uint	sendChildEvents: 1

uint	receiveChildEvents: 1

uint	isWindow: 1

uint	deleteLaterCalled: 1

uint	isQuickItem: 1

uint	willBeWidget: 1

uint	wasWidget: 1

uint	receiveParentEvents: 1

uint	unused: 20

QAtomicInt	postedEvents

QDynamicMetaObjectData *	metaObject

QBindingStorage	bindingStorage

Additional Inherited Members
Protected Member Functions inherited from QQuickPaletteProviderPrivateBase< QQuickItem, QQuickItemPrivate >
void	setCurrentColorGroup ()

Detailed Description

Definition at line 223 of file qquickitem_p.h.

Member Enumeration Documentation

◆ ChangeType

enum QQuickItemPrivate::ChangeType

Enumerator
Geometry
SiblingOrder
Visibility
Opacity
Destroyed
Parent
Children
Rotation
ImplicitWidth
ImplicitHeight
Enabled
Focus
AllChanges

Definition at line 300 of file qquickitem_p.h.

◆ DirtyType

enum QQuickItemPrivate::DirtyType

Enumerator
TransformOrigin
Transform
BasicTransform
Position
Size
ZValue
Content
Smooth
OpacityValue
ChildrenChanged
ChildrenStackingChanged
ParentChanged
Clip
Window
EffectReference
Visible
HideReference
Antialiasing
TransformUpdateMask
ComplexTransformUpdateMask
ContentUpdateMask
ChildrenUpdateMask

Definition at line 501 of file qquickitem_p.h.

◆ ExtraDataTag

enum QQuickItemPrivate::ExtraDataTag

Enumerator
NoTag
LeftMouseButtonAccepted

Definition at line 418 of file qquickitem_p.h.

Constructor & Destructor Documentation

◆ QQuickItemPrivate()

QQuickItemPrivate::QQuickItemPrivate ( )

Definition at line 3247 of file qquickitem.cpp.

◆ ~QQuickItemPrivate()

QQuickItemPrivate::~QQuickItemPrivate ( )

override

Definition at line 3312 of file qquickitem.cpp.

References childItems, and sortedChildItems.

Member Function Documentation

◆ _q_createJSWrapper()

quint64 QQuickItemPrivate::_q_createJSWrapper ( QQmlV4ExecutionEnginePtr engine )

Definition at line 10049 of file qquickitem.cpp.

References engine.

◆ _q_resourceObjectDeleted()

void QQuickItemPrivate::_q_resourceObjectDeleted ( QObject * object )

Definition at line 3656 of file qquickitem.cpp.

References extra.

Referenced by addPointerHandler(), resources_append(), resources_clear(), and resources_removeLast().

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◆ _states()

QQuickStateGroup * QQuickItemPrivate::_states ( )

Definition at line 5401 of file qquickitem.cpp.

References _stateGroup, QQuickStateGroup::classBegin(), componentComplete, qmlobject_connect, and SIGNAL.

Referenced by setState(), states(), and transitions().

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◆ acceptedMouseButtons()

Qt::MouseButtons QQuickItemPrivate::acceptedMouseButtons ( ) const

inline

Definition at line 1003 of file qquickitem_p.h.

References Qt::LeftButton.

Referenced by QQuickDeliveryAgentPrivate::deliverMatchingPointsToItem(), and QQuickMouseAreaPrivate::propagateHelper().

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◆ addChild()

void QQuickItemPrivate::addChild ( QQuickItem * child )

Definition at line 2993 of file qquickitem.cpp.

References QList< T >::append(), child, childItems, ChildrenChanged, QListSpecialMethodsBase< T >::contains(), dirty(), emit, extra, get(), itemChange(), QQuickItem::ItemChildAddedChange, markSortedChildrenDirty(), Q_ASSERT, setHasCursorInChild(), setHasHoverInChild(), subtreeCursorEnabled, and subtreeHoverEnabled.

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◆ addItemChangeListener()

void QQuickItemPrivate::addItemChangeListener	(	QQuickItemChangeListener *	listener,
		ChangeTypes	types )

Definition at line 4049 of file qquickitem.cpp.

References changeListeners, and PRINT_LISTENERS.

Referenced by QQuickRowPrivate::effectiveLayoutDirectionChange(), QQuickGridPrivate::effectiveLayoutDirectionChange(), QQuickPathViewPrivate::getItem(), QQuickItemViewFxItem::trackGeometry(), and QQuickIconLabelPrivate::watchChanges().

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◆ addPointerHandler()

void QQuickItemPrivate::addPointerHandler ( QQuickPointerHandler * h )

virtual

Reimplemented in QQuickFlickablePrivate.

Definition at line 9398 of file qquickitem.cpp.

References _q_resourceObjectDeleted(), Qt::AllButtons, QObject::connect(), QObject::destroyed(), extra, o, and Q_ASSERT.

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◆ addToDirtyList()

void QQuickItemPrivate::addToDirtyList ( )

Definition at line 6772 of file qquickitem.cpp.

References get(), QQuickWindowPrivate::get(), nextDirtyItem, prevDirtyItem, Q_ASSERT, and window.

Referenced by dirty().

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◆ adjustedPosForTransform()

QPointF QQuickItemPrivate::adjustedPosForTransform	(	const QPointF &	centroidParentPos,
		const QPointF &	startPos,
		const QVector2D &	activeTranslation,
		qreal	startScale,
		qreal	activeScale,
		qreal	startRotation,
		qreal	activeRotation )

Returns the new position (proposed values for the x and y properties) to which this item should be moved to compensate for the given change in scale from startScale to activeScale and in rotation from startRotation to activeRotation. centroidParentPos is the point that we wish to hold in place (and then apply activeTranslation to), in this item's parent's coordinate system. startPos is this item's position in its parent's coordinate system when the gesture began. activeTranslation is the amount of translation that should be added to the return value, i.e. the displacement by which the centroid is expected to move.

If activeTranslation is (0, 0) the centroid is to be held in place. If activeScale is 1, it means scale is intended to be held constant, the same as startScale. If activeRotation is 0, it means rotation is intended to be held constant, the same as startRotation.

Definition at line 5503 of file qquickitem.cpp.

References pos, QMatrix4x4::translate(), QPointF::x(), and QPointF::y().

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◆ anchors()

QQuickAnchors * QQuickItemPrivate::anchors ( ) const

\qmlpropertygroup QtQuick::Item::anchors \qmlproperty AnchorLine QtQuick::Item::anchors.top \qmlproperty AnchorLine QtQuick::Item::anchors.bottom \qmlproperty AnchorLine QtQuick::Item::anchors.left \qmlproperty AnchorLine QtQuick::Item::anchors.right \qmlproperty AnchorLine QtQuick::Item::anchors.horizontalCenter \qmlproperty AnchorLine QtQuick::Item::anchors.verticalCenter \qmlproperty AnchorLine QtQuick::Item::anchors.baseline

\qmlproperty Item QtQuick::Item::anchors.fill \qmlproperty Item QtQuick::Item::anchors.centerIn

\qmlproperty real QtQuick::Item::anchors.margins \qmlproperty real QtQuick::Item::anchors.topMargin \qmlproperty real QtQuick::Item::anchors.bottomMargin \qmlproperty real QtQuick::Item::anchors.leftMargin \qmlproperty real QtQuick::Item::anchors.rightMargin \qmlproperty real QtQuick::Item::anchors.horizontalCenterOffset \qmlproperty real QtQuick::Item::anchors.verticalCenterOffset \qmlproperty real QtQuick::Item::anchors.baselineOffset

\qmlproperty bool QtQuick::Item::anchors.alignWhenCentered

Anchors provide a way to position an item by specifying its relationship with other items.

Margins apply to top, bottom, left, right, and fill anchors. The \l anchors.margins property can be used to set all of the various margins at once, to the same value. It will not override a specific margin that has been previously set; to clear an explicit margin set its value to undefined. Note that margins are anchor-specific and are not applied if an item does not use anchors.

Offsets apply for horizontal center, vertical center, and baseline anchors.

\table \row

Text anchored to Image, horizontally centered and vertically below, with a margin. \qml Item { Image { id: pic ... } Text { id: label anchors.horizontalCenter: pic.horizontalCenter anchors.top: pic.bottom anchors.topMargin: 5 ... } } \endqml \row
Left of Text anchored to right of Image, with a margin. The y property of both defaults to 0.

\qml Item { Image { id: pic ... } Text { id: label anchors.left: pic.right anchors.leftMargin: 5 ... } } \endqml \endtable

\l anchors.fill provides a convenient way for one item to have the same geometry as another item, and is equivalent to connecting all four directional anchors.

To clear an anchor value, set it to undefined.

\l anchors.alignWhenCentered (default true) forces centered anchors to align to a whole pixel; if the item being centered has an odd \l width or \l height, the item will be positioned on a whole pixel rather than being placed on a half-pixel. This ensures the item is painted crisply. There are cases where this is not desirable, for example when rotating the item jitters may be apparent as the center is rounded.

Note: You can only anchor an item to siblings or a parent.

For more information see \l {anchor-layout}{Anchor Layouts}.

Definition at line 3756 of file qquickitem.cpp.

References _anchors, QQuickAnchors::classBegin(), and componentComplete.

Referenced by anchors(), QQuickTableViewPrivate::createFxTableItem(), and QQuickSwipeViewPrivate::resizeItem().

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◆ anyPointerHandlerWants()

bool QQuickItemPrivate::anyPointerHandlerWants	(	const QPointerEvent *	event,
		const QEventPoint &	point ) const

Definition at line 5743 of file qquickitem.cpp.

References extra, and hasPointerHandlers().

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◆ baseline()

QQuickAnchorLine QQuickItemPrivate::baseline ( ) const

Definition at line 4533 of file qquickitem.cpp.

References QQuickAnchors::BaselineAnchor.

Referenced by QQuickTextPrivate::setupTextLayout(), QQuickTextPrivate::updateBaseline(), and QQuickTextPrivate::updateSize().

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◆ bottom()

QQuickAnchorLine QQuickItemPrivate::bottom ( ) const

Definition at line 4521 of file qquickitem.cpp.

References QQuickAnchors::BottomAnchor.

◆ calcEffectiveEnable()

bool QQuickItemPrivate::calcEffectiveEnable ( ) const

Definition at line 6656 of file qquickitem.cpp.

References explicitEnable, get(), and parentItem.

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◆ calcEffectiveVisible()

bool QQuickItemPrivate::calcEffectiveVisible ( ) const

Definition at line 6608 of file qquickitem.cpp.

References explicitVisible, get(), and parentItem.

Referenced by setVisible().

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◆ canAcceptTabFocus()

bool QQuickItemPrivate::canAcceptTabFocus ( QQuickItem * item )

static

Definition at line 2432 of file qquickitem.cpp.

References get(), QVariant::isValid(), item, QVariant::toBool(), and QGraphicsItem::window().

Referenced by nextPrevItemInTabFocusChain().

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◆ childContainerNode()

QSGNode * QQuickItemPrivate::childContainerNode ( )

inline

Definition at line 1051 of file qquickitem_p.h.

◆ children()

QQmlListProperty< QQuickItem > QQuickItemPrivate::children ( )

Definition at line 5157 of file qquickitem.cpp.

References children_append(), children_at(), children_clear(), children_count(), and children_removeLast().

Referenced by QQuickScrollViewPrivate::contentChildren_append(), QQuickScrollViewPrivate::contentChildren_at(), QQuickScrollViewPrivate::contentChildren_clear(), QQuickScrollViewPrivate::contentChildren_count(), nextTabChildItem(), prevTabChildItem(), QQuickMouseAreaPrivate::propagateHelper(), QQuickOverlayPrivate::stackingOrderPopups(), transformChanged(), and QQuickTableViewPrivate::updateTableRecursive().

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◆ children_append()

void QQuickItemPrivate::children_append	(	QQmlListProperty< QQuickItem > *	prop,
		QQuickItem *	o )

static

Definition at line 3513 of file qquickitem.cpp.

References o.

Referenced by children(), QQuickPanePrivate::contentChildren(), and QQuickPopupPrivate::contentChildren().

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◆ children_at()

QQuickItem * QQuickItemPrivate::children_at	(	QQmlListProperty< QQuickItem > *	prop,
		qsizetype	index )

static

Definition at line 3504 of file qquickitem.cpp.

References get().

Referenced by children(), QQuickPanePrivate::contentChildren(), QQuickPopupPrivate::contentChildren(), and data_at().

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◆ children_clear()

void QQuickItemPrivate::children_clear ( QQmlListProperty< QQuickItem > * prop )

static

Definition at line 3531 of file qquickitem.cpp.

References get().

Referenced by children(), QQuickPanePrivate::contentChildren(), QQuickPopupPrivate::contentChildren(), and data_clear().

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◆ children_count()

qsizetype QQuickItemPrivate::children_count ( QQmlListProperty< QQuickItem > * prop )

static

Definition at line 3525 of file qquickitem.cpp.

References get().

Referenced by children(), QQuickPanePrivate::contentChildren(), QQuickPopupPrivate::contentChildren(), data_at(), data_count(), and data_removeLast().

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◆ children_removeLast()

void QQuickItemPrivate::children_removeLast ( QQmlListProperty< QQuickItem > * prop )

static

Definition at line 3539 of file qquickitem.cpp.

References get().

Referenced by children(), and data_removeLast().

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◆ clipNode()

QQuickDefaultClipNode * QQuickItemPrivate::clipNode ( ) const

inline

Definition at line 684 of file qquickitem_p.h.

◆ computeTransformOrigin()

QPointF QQuickItemPrivate::computeTransformOrigin ( ) const

Definition at line 5415 of file qquickitem.cpp.

References QQuickItem::Bottom, QQuickItem::BottomLeft, QQuickItem::BottomRight, QQuickItem::Center, QQuickItem::Left, origin(), QQuickItem::Right, QQuickItem::Top, QQuickItem::TopLeft, and QQuickItem::TopRight.

Referenced by itemToParentTransform(), and QQuickFlipablePrivate::updateSide().

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◆ createTransformNode()

QSGTransformNode * QQuickItemPrivate::createTransformNode ( )

virtual

Definition at line 4019 of file qquickitem.cpp.

◆ data()

QQmlListProperty< QObject > QQuickItemPrivate::data ( )

Definition at line 3773 of file qquickitem.cpp.

References data_append(), data_at(), data_clear(), data_count(), data_removeLast(), and QQmlListProperty< T >::object.

Referenced by QQuickShapePrivate::asyncShapeReady(), and QQuickSplitViewPrivate::effectiveSizeData().

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◆ data_append()

void QQuickItemPrivate::data_append	(	QQmlListProperty< QObject > *	prop,
		QObject *	o )

static

Definition at line 3344 of file qquickitem.cpp.

References get(), item, o, qCDebug, resources_append(), and QGraphicsItem::setParentItem().

Referenced by QQuickPanePrivate::contentData(), QQuickPopupPrivate::contentData(), QQuickApplicationWindowPrivate::contentData_append(), data(), ssgn_append(), and vpe_append().

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◆ data_at()

QObject * QQuickItemPrivate::data_at	(	QQmlListProperty< QObject > *	property,
		qsizetype	i )

static

Definition at line 3410 of file qquickitem.cpp.

References children_at(), children_count(), get(), i, item, j, resources_at(), and resources_count().

Referenced by QQuickApplicationWindowPrivate::contentData(), QQuickPanePrivate::contentData(), QQuickPopupPrivate::contentData(), and data().

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◆ data_clear()

void QQuickItemPrivate::data_clear ( QQmlListProperty< QObject > * property )

static

Definition at line 3426 of file qquickitem.cpp.

References children_clear(), get(), item, and resources_clear().

Referenced by QQuickApplicationWindowPrivate::contentData(), QQuickPanePrivate::contentData(), QQuickPopupPrivate::contentData(), data(), and vpe_clear().

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◆ data_count()

qsizetype QQuickItemPrivate::data_count ( QQmlListProperty< QObject > * property )

static

\qmlproperty list<QtObject> QtQuick::Item::data \qmldefault

The data property allows you to freely mix visual children and resources in an item. If you assign a visual item to the data list it becomes a child and if you assign any other object type, it is added as a resource.

So you can write: \qml Item { Text {} Rectangle {} Timer {} } \endqml

instead of: \qml Item { children: [ Text {}, Rectangle {} ] resources: [ Timer {} ] } \endqml

It should not generally be necessary to refer to the data property, as it is the default property for Item and thus all child items are automatically assigned to this property.

Definition at line 3400 of file qquickitem.cpp.

References children_count(), get(), item, and resources_count().

Referenced by QQuickApplicationWindowPrivate::contentData(), QQuickPanePrivate::contentData(), QQuickPopupPrivate::contentData(), and data().

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◆ data_removeLast()

void QQuickItemPrivate::data_removeLast ( QQmlListProperty< QObject > * property )

static

Definition at line 3437 of file qquickitem.cpp.

References children_count(), children_removeLast(), get(), item, resources_count(), and resources_removeLast().

Referenced by data().

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◆ deliverKeyEvent()

void QQuickItemPrivate::deliverKeyEvent ( QKeyEvent * e )

Definition at line 5670 of file qquickitem.cpp.

References QEvent::accept(), Qt::AltModifier, Qt::ControlModifier, filterKeyEvent(), focusNextPrev(), QEvent::isAccepted(), QKeyEvent::key(), Qt::Key_Backtab, Qt::Key_Tab, QEvent::KeyPress, QKeyEvent::modifiers(), Q_ASSERT, QEvent::setAccepted(), Qt::ShiftModifier, and QEvent::type().

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◆ deliverPointerEvent()

void QQuickItemPrivate::deliverPointerEvent ( QEvent * event )

Definition at line 5635 of file qquickitem.cpp.

References QEvent::MouseButtonDblClick, QEvent::MouseButtonPress, QEvent::MouseButtonRelease, setFocusIfNeeded(), QEvent::TouchBegin, QEvent::TouchCancel, QEvent::TouchEnd, QEvent::TouchUpdate, and QEvent::Wheel.

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◆ deliverShortcutOverrideEvent()

void QQuickItemPrivate::deliverShortcutOverrideEvent ( QKeyEvent * event )

Definition at line 5735 of file qquickitem.cpp.

References extra.

◆ deliveryAgent()

QQuickDeliveryAgent * QQuickItemPrivate::deliveryAgent ( )

Returns the delivery agent for the narrowest subscene containing this item, but falls back to QQuickWindowPrivate::deliveryAgent if there are no subscenes.

If this item is not sure whether it's in a subscene (as by default), we need to explore the parents to find out.

If this item is in a subscene, we will find that DA during the exploration, and return it.

If we find the root item without finding a DA, then we know that this item does NOT belong to a subscene, so we remember that by setting maybeHasSubsceneDeliveryAgent to false, so that exploration of the parents can be avoided next time.

In the usual case in normal 2D scenes without subscenes, maybeHasSubsceneDeliveryAgent gets set to false here.

Note: When a Qt Quick scene is shown in the usual way in its own window, subscenes are ignored, and QQuickWindowPrivate::deliveryAgent is used. Subscene delivery agents are used only in QtQuick 3D so far.

Definition at line 5559 of file qquickitem.cpp.

References get(), QQuickWindowPrivate::get(), maybeHasSubsceneDeliveryAgent, qCDebug, and window.

Referenced by QQuickDeliveryAgentPrivate::deliverMatchingPointsToItem(), and deliveryAgentPrivate().

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◆ deliveryAgentPrivate()

QQuickDeliveryAgentPrivate * QQuickItemPrivate::deliveryAgentPrivate ( )

Definition at line 5588 of file qquickitem.cpp.

References deliveryAgent(), and QObjectPrivate::get().

Referenced by QQuickTableViewPrivate::releaseItem(), QQuickFlickablePrivate::replayDelayedPress(), setEffectiveEnableRecur(), and setEffectiveVisibleRecur().

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◆ derefFromEffectItem()

void QQuickItemPrivate::derefFromEffectItem ( bool unhide )

Definition at line 6833 of file qquickitem.cpp.

References ChildrenStackingChanged, dirty(), EffectReference, extra, get(), HideReference, parentItem, Q_ASSERT, and recursiveRefFromEffectItem().

Referenced by QQuickShaderEffectSource::~QQuickShaderEffectSource().

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◆ derefWindow()

void QQuickItemPrivate::derefWindow ( )

Definition at line 3098 of file qquickitem.cpp.

References QList< T >::at(), child, childItems, dirty(), extra, get(), QQuickWindowPrivate::get(), itemChange(), itemNodeInstance, QQuickItem::ItemSceneChange, paintNode, parentItem, polishScheduled, Q_ASSERT, removeFromDirtyList(), QList< T >::size(), window, and windowRefCount.

Referenced by QQuickShaderEffectSource::~QQuickShaderEffectSource().

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◆ dirty()

void QQuickItemPrivate::dirty ( DirtyType type )

Definition at line 6758 of file qquickitem.cpp.

References addToDirtyList(), BasicTransform, Clip, componentComplete, dirtyAttributes, QQuickWindowPrivate::get(), prevDirtyItem, Transform, transformChanged(), TransformOrigin, and window.

Referenced by addChild(), derefFromEffectItem(), derefWindow(), refFromEffectItem(), refWindow(), removeChild(), setCulled(), setEffectiveVisibleRecur(), setVisible(), QQuickShapePrivate::sync(), transformChanged(), and QQuickTextPrivate::transformChanged().

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◆ dirtyToString()

QString QQuickItemPrivate::dirtyToString ( ) const

Definition at line 6725 of file qquickitem.cpp.

References Antialiasing, BasicTransform, ChildrenChanged, ChildrenStackingChanged, Clip, Content, DIRTY_TO_STRING, EffectReference, HideReference, OpacityValue, ParentChanged, Smooth, Transform, TransformOrigin, Visible, and ZValue.

◆ dumpItemTree()

void QQuickItemPrivate::dumpItemTree ( int indent ) const

virtual

Definition at line 5105 of file qquickitem.cpp.

References ch, childItems, extra, get(), and qDebug.

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◆ emitChildrenRectChanged()

void QQuickItemPrivate::emitChildrenRectChanged ( const QRectF & rect )

inline

Definition at line 632 of file qquickitem_p.h.

References Q_EMIT, and rect.

◆ enableSubtreeChangeNotificationsForParentHierachy()

void QQuickItemPrivate::enableSubtreeChangeNotificationsForParentHierachy ( )

Definition at line 7111 of file qquickitem.cpp.

References get(), QQuickItem::parentItem(), and qCDebug.

Referenced by itemChange().

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◆ ensureSubsceneDeliveryAgent()

QQuickDeliveryAgent * QQuickItemPrivate::ensureSubsceneDeliveryAgent ( )

Ensures that this item, presumably the root of a subscene (e.g. because it is mapped onto a 3D object in Qt Quick 3D), has a delivery agent to be used when delivering events to the subscene: i.e. when the viewport delivers an event to the subscene, or when the outer delivery agent delivers an update to an item that grabbed during a previous subscene delivery. Creates a new agent if it was not already created, and returns a pointer to the instance.

Definition at line 5602 of file qquickitem.cpp.

References extra, QQuickItem::ItemIsFocusScope, maybeHasSubsceneDeliveryAgent, and qCDebug.

◆ filterKeyEvent()

bool QQuickItemPrivate::filterKeyEvent	(	QKeyEvent *	e,
		bool	post )

Definition at line 5619 of file qquickitem.cpp.

References QEvent::accept(), extra, QEvent::isAccepted(), QEvent::KeyPress, post(), and QEvent::type().

Referenced by deliverKeyEvent().

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◆ focusNextPrev()

bool QQuickItemPrivate::focusNextPrev	(	QQuickItem *	item,
		bool	forward )

static

QQuickItemPrivate::focusNextPrev focuses the next/prev item in the tab-focus-chain.

Parameters

item	The item that currently has the focus
forward	The direction

Returns: Whether the next item in the focus chain is found or not

If next is true, the next item visited will be in depth-first order relative to item. If next is false, the next item visited will be in reverse depth-first order relative to item.

Definition at line 2471 of file qquickitem.cpp.

References Qt::BacktabFocusReason, item, QWindowPrivate::Next, next, nextPrevItemInTabFocusChain(), QObject::parent(), QWindowPrivate::Prev, Q_ASSERT, qt_window_private(), Qt::TabFocusReason, QGraphicsItem::window(), window, and wrap().

Referenced by deliverKeyEvent(), and QQuickPopup::keyPressEvent().

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◆ get() [1/2]

static const QQuickItemPrivate * QQuickItemPrivate::get ( const QQuickItem * item )

inlinestatic

Definition at line 231 of file qquickitem_p.h.

References item.

◆ get() [2/2]

static QQuickItemPrivate * QQuickItemPrivate::get ( QQuickItem * item )

inlinestatic

Definition at line 230 of file qquickitem_p.h.

References item.

◆ getImplicitHeight()

qreal QQuickItemPrivate::getImplicitHeight ( ) const

virtual

Reimplemented in QQuickLoaderPrivate, QQuickTextPrivate, QQuickShapePrivate, QQuickTextAreaPrivate, and QQuickTextFieldPrivate.

Definition at line 7557 of file qquickitem.cpp.

References implicitHeight.

Referenced by QQuickLoaderPrivate::getImplicitHeight(), QQuickTextAreaPrivate::getImplicitHeight(), and QQuickTextFieldPrivate::getImplicitHeight().

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◆ getImplicitWidth()

qreal QQuickItemPrivate::getImplicitWidth ( ) const

virtual

Reimplemented in QQuickLoaderPrivate, QQuickTextPrivate, QQuickTextEditPrivate, QQuickTextInputPrivate, QQuickShapePrivate, QQuickTextAreaPrivate, and QQuickTextFieldPrivate.

Definition at line 7346 of file qquickitem.cpp.

References implicitWidth.

Referenced by QQuickLoaderPrivate::getImplicitWidth(), QQuickTextAreaPrivate::getImplicitWidth(), and QQuickTextFieldPrivate::getImplicitWidth().

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◆ globalToWindowTransform()

QTransform QQuickItemPrivate::globalToWindowTransform ( ) const

Returns a transform that maps points from global space into window space.

Definition at line 3221 of file qquickitem.cpp.

References QTransform::fromTranslate(), pos, Q_UNLIKELY, QQuickRenderControl::renderWindowFor(), and window.

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◆ handlePointerEvent()

bool QQuickItemPrivate::handlePointerEvent	(	QPointerEvent *	event,
		bool	avoidGrabbers = false )

virtual

Deliver the event to all this item's PointerHandlers, but skip HoverHandlers if the event is a QMouseEvent or QWheelEvent (they are visited in QQuickDeliveryAgentPrivate::deliverHoverEventToItem()), and skip handlers that are in QQuickPointerHandlerPrivate::deviceDeliveryTargets(). If avoidGrabbers is true, also skip delivery to any handler that is exclusively or passively grabbing any point within event (because delivery to grabbers is handled separately).

Definition at line 5764 of file qquickitem.cpp.

References QQuickPointerHandlerPrivate::deviceDeliveryTargets(), extra, and QQuickDeliveryAgentPrivate::isMouseOrWheelEvent().

Referenced by QQuickDeliveryAgentPrivate::deliverMatchingPointsToItem(), QQuickDeliveryAgentPrivate::deliverSinglePointEventUntilAccepted(), and QQuickDeliveryAgentPrivate::deliverUpdatedPoints().

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◆ hasEnabledHoverHandlers()

bool QQuickItemPrivate::hasEnabledHoverHandlers ( ) const

Definition at line 9388 of file qquickitem.cpp.

References extra, and hasPointerHandlers().

Referenced by setHasHoverInChild().

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◆ hasPointerHandlers()

bool QQuickItemPrivate::hasPointerHandlers ( ) const

Definition at line 9383 of file qquickitem.cpp.

References extra.

Referenced by anyPointerHandlerWants(), QQuickDeliveryAgentPrivate::deliverHoverEventToItem(), and hasEnabledHoverHandlers().

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◆ heightChanged()

void QQuickItemPrivate::heightChanged ( )

inline

Definition at line 592 of file qquickitem_p.h.

◆ heightValid()

bool QQuickItemPrivate::heightValid ( ) const

inline

Definition at line 598 of file qquickitem_p.h.

Referenced by QQuickLoaderPrivate::setInitialState().

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◆ horizontalCenter()

QQuickAnchorLine QQuickItemPrivate::horizontalCenter ( ) const

Definition at line 4509 of file qquickitem.cpp.

References QQuickAnchors::HCenterAnchor.

◆ implicitHeightChanged()

void QQuickItemPrivate::implicitHeightChanged ( )

virtual

Reimplemented in QQuickPopupItemPrivate, QQuickTextAreaPrivate, and QQuickTextFieldPrivate.

Definition at line 7550 of file qquickitem.cpp.

References emit, ImplicitHeight, QQuickItemChangeListener::itemImplicitHeightChanged(), and notifyChangeListeners().

Referenced by QQuickPopupItemPrivate::implicitHeightChanged(), QQuickTextAreaPrivate::implicitHeightChanged(), QQuickTextFieldPrivate::implicitHeightChanged(), and QQuickTextPrivate::updateSize().

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◆ implicitWidthChanged()

void QQuickItemPrivate::implicitWidthChanged ( )

virtual

Reimplemented in QQuickPopupItemPrivate, QQuickTextAreaPrivate, and QQuickTextFieldPrivate.

Definition at line 7339 of file qquickitem.cpp.

References emit, ImplicitWidth, QQuickItemChangeListener::itemImplicitWidthChanged(), and notifyChangeListeners().

Referenced by QQuickPopupItemPrivate::implicitWidthChanged(), QQuickTextAreaPrivate::implicitWidthChanged(), QQuickTextFieldPrivate::implicitWidthChanged(), and QQuickTextPrivate::updateSize().

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◆ init()

void QQuickItemPrivate::init ( QQuickItem * parent )

Definition at line 3318 of file qquickitem.cpp.

References baselineOffset, get(), QObjectData::isQuickItem, QObjectData::parent, and setImplicitLayoutMirror().

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◆ isMirrored()

bool QQuickItemPrivate::isMirrored ( ) const

inline

Definition at line 628 of file qquickitem_p.h.

◆ isTransparentForPositioner()

bool QQuickItemPrivate::isTransparentForPositioner ( ) const

Definition at line 6714 of file qquickitem.cpp.

References extra.

Referenced by QQuickContainerPrivate::contentData_append(), QQuickPageIndicatorPrivate::itemAt(), QQuickPageIndicatorPrivate::itemChildAdded(), QQuickContainerPrivate::itemChildAdded(), and QQuickContainerPrivate::reorderItems().

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◆ itemChange()

void QQuickItemPrivate::itemChange	(	QQuickItem::ItemChange	change,
		const QQuickItem::ItemChangeData &	data )

Definition at line 6859 of file qquickitem.cpp.

References Children, Enabled, enableSubtreeChangeNotificationsForParentHierachy(), get(), QQuickItem::ItemActiveFocusHasChanged, QQuickItem::ItemAntialiasingHasChanged, QQuickItemChangeListener::itemChildAdded(), QQuickItem::ItemChildAddedChange, QQuickItemChangeListener::itemChildRemoved(), QQuickItem::ItemChildRemovedChange, QQuickItem::ItemDevicePixelRatioHasChanged, QQuickItemChangeListener::itemEnabledChanged(), QQuickItem::ItemEnabledHasChanged, QQuickItemChangeListener::itemOpacityChanged(), QQuickItem::ItemOpacityHasChanged, QQuickItemChangeListener::itemParentChanged(), QQuickItem::ItemParentHasChanged, QQuickItemChangeListener::itemRotationChanged(), QQuickItem::ItemRotationHasChanged, QQuickItem::ItemSceneChange, QQuickItemChangeListener::itemVisibilityChanged(), QQuickItem::ItemVisibleHasChanged, notifyChangeListeners(), Opacity, Parent, qCDebug, Rotation, subtreeTransformChangedEnabled, and Visibility.

Referenced by addChild(), derefWindow(), QQuickDeliveryAgentPrivate::notifyFocusChangesRecur(), refWindow(), removeChild(), setEffectiveEnableRecur(), setEffectiveVisibleRecur(), and updatePixelRatioHelper().

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◆ itemNode()

QSGTransformNode * QQuickItemPrivate::itemNode ( )

inline

Definition at line 1038 of file qquickitem_p.h.

References arg, QString::fromLatin1(), QSGNode::OwnedByParent, and qsgnode_set_description().

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◆ itemToParentTransform()

void QQuickItemPrivate::itemToParentTransform ( QTransform * t ) const

Modifies t with this item's local transform relative to its parent.

Definition at line 3174 of file qquickitem.cpp.

References QQuickTransform::applyTo(), QList< T >::at(), computeTransformOrigin(), QList< T >::isEmpty(), rotation(), scale(), QList< T >::size(), transforms, QPointF::x(), and QPointF::y().

Referenced by itemToWindowTransform().

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◆ itemToWindowTransform()

QTransform QQuickItemPrivate::itemToWindowTransform ( ) const

Returns a transform that maps points from item space into window space.

Definition at line 3162 of file qquickitem.cpp.

References get(), itemToParentTransform(), parentItem, and Q_ASSERT.

Referenced by windowToItemTransform().

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◆ lastFocusChangeReason()

Qt::FocusReason QQuickItemPrivate::lastFocusChangeReason ( ) const

Definition at line 1742 of file qquickitem.cpp.

References focusReason.

◆ left()

QQuickAnchorLine QQuickItemPrivate::left ( ) const

Definition at line 4497 of file qquickitem.cpp.

References QQuickAnchors::LeftAnchor.

◆ localizedTouchEvent()

void QQuickItemPrivate::localizedTouchEvent	(	const QTouchEvent *	event,
		bool	isFiltering,
		QMutableTouchEvent *	localized )

Since: 6.0 \qmlproperty Palette QtQuick::Item::palette

This property holds the palette currently set for the item.

This property describes the item's requested palette. The palette is used by the item's style when rendering all controls, and is available as a means to ensure that custom controls can maintain consistency with the native platform's native look and feel. It's common that different platforms, or different styles, define different palettes for an application.

The default palette depends on the system environment. ApplicationWindow maintains a system/theme palette which serves as a default for all controls. There may also be special palette defaults for certain types of controls. You can also set the default palette for controls by either:

\list

passing a custom palette to QGuiApplication::setPalette(), before loading any QML; or
specifying the colors in the \l {Qt Quick Controls 2 Configuration File} {qtquickcontrols2.conf file}. \endlist

Items propagate explicit palette properties from parents to children. If you change a specific property on a items's palette, that property propagates to all of the item's children, overriding any system defaults for that property.

Item {
    palette {
        buttonText: "maroon"
        button: "lavender"
    }
 
    Button {
        text: "Click Me"
    }
}

See also: Window::palette, Popup::palette, ColorGroup, Palette, SystemPalette

Create a modified copy of the given event intended for delivery to this item, containing pointers to only the QEventPoint instances that are relevant to this item, and transforming their positions to this item's coordinate system.

Returns an invalid event with type \l QEvent::None if all points are stationary; or there are no points inside the item; or none of the points were pressed inside, neither the item nor any of its handlers is grabbing any of them, and isFiltering is false.

When isFiltering is true, it is assumed that the item cares about all points which are inside its bounds, because most filtering items need to monitor eventpoint movements until a drag threshold is exceeded or the requirements for a gesture to be recognized are met in some other way.

Definition at line 9291 of file qquickitem.cpp.

References QMutableEventPoint::detach(), QEvent::None, QObjectData::parent, QQuickPointerHandler::parentItem(), QEventPoint::Pressed, qobject_cast< QQuickItem * >(), QEventPoint::Released, ret, QEvent::TouchBegin, QEvent::TouchEnd, and QEvent::TouchUpdate.

Referenced by QQuickDeliveryAgentPrivate::deliverMatchingPointsToItem().

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◆ markSortedChildrenDirty()

void QQuickItemPrivate::markSortedChildrenDirty ( QQuickItem * child )

inline

Definition at line 1021 of file qquickitem_p.h.

References child.

Referenced by addChild(), and removeChild().

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◆ mirrorChange()

virtual void QQuickItemPrivate::mirrorChange ( )

inlinevirtual

Reimplemented in QQuickItemViewPrivate, QQuickBasePositionerPrivate, QQuickTextPrivate, QQuickTextEditPrivate, QQuickTextInputPrivate, QQuickGridLayoutBasePrivate, and QQuickControlPrivate.

Definition at line 702 of file qquickitem_p.h.

Referenced by setLayoutMirror().

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◆ nextPrevItemInTabFocusChain()

QQuickItem * QQuickItemPrivate::nextPrevItemInTabFocusChain	(	QQuickItem *	item,
		bool	forward,
		bool	wrap = true )

static

Definition at line 2547 of file qquickitem.cpp.

References QQuickItem::activeFocusOnTab(), canAcceptTabFocus(), QGraphicsItem::childItems(), QQuickItem::childItems(), QList< T >::constFirst(), QListSpecialMethodsBase< T >::indexOf(), QList< T >::isEmpty(), QQuickItem::isEnabled(), isTabFence, QQuickItem::isVisible(), item, nextTabChildItem(), QObjectData::parent, QGraphicsItem::parentItem(), QQuickItem::parentItem(), prevTabChildItem(), Q_ASSERT, qCDebug, QGuiApplication::styleHints(), Qt::TabFocusAllControls, QGraphicsItem::window(), and wrap().

Referenced by focusNextPrev(), and QQuickWindowPrivate::setFocusToTarget().

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◆ nextTabChildItem()

QQuickItem * QQuickItemPrivate::nextTabChildItem	(	const QQuickItem *	item,
		int	start )

static

Definition at line 2503 of file qquickitem.cpp.

References child, QGraphicsItem::childItems(), children(), item, and qWarning.

Referenced by nextPrevItemInTabFocusChain().

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◆ notifyChangeListeners()

template<typename Fn , typename ... Args>

void QQuickItemPrivate::notifyChangeListeners	(	QQuickItemPrivate::ChangeTypes	changeTypes,
		Fn &&	function,
		Args &&...	args )

inline

Definition at line 348 of file qquickitem_p.h.

References args, changeTypes, function, and listeners.

Referenced by implicitHeightChanged(), implicitWidthChanged(), itemChange(), QQuickDeliveryAgentPrivate::notifyFocusChangesRecur(), QQuickDeliveryAgentPrivate::setFocusInScope(), and siblingOrderChanged().

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◆ opacity()

qreal QQuickItemPrivate::opacity ( ) const

inline

Definition at line 607 of file qquickitem_p.h.

◆ opacityNode()

QSGOpacityNode * QQuickItemPrivate::opacityNode ( ) const

inline

Definition at line 683 of file qquickitem_p.h.

◆ origin()

QQuickItem::TransformOrigin QQuickItemPrivate::origin ( ) const

inline

Definition at line 1032 of file qquickitem_p.h.

References QQuickItem::Center.

Referenced by computeTransformOrigin(), and QQuickFlipablePrivate::updateSide().

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◆ paintOrderChildItems()

QList< QQuickItem * > QQuickItemPrivate::paintOrderChildItems ( ) const

Definition at line 2968 of file qquickitem.cpp.

References QList< T >::at(), QList< T >::begin(), childItems, QList< T >::end(), get(), i, itemZOrder_sort(), QList< T >::size(), and sortedChildItems.

Referenced by QQuickDeliveryAgentPrivate::deliverHoverEventRecursive(), QQuickMouseAreaPrivate::propagateHelper(), QQuickOverlayPrivate::stackingOrderPopups(), and transformChanged().

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◆ prevTabChildItem()

QQuickItem * QQuickItemPrivate::prevTabChildItem	(	const QQuickItem *	item,
		int	start )

static

Definition at line 2524 of file qquickitem.cpp.

References child, QGraphicsItem::childItems(), children(), item, and qWarning.

Referenced by nextPrevItemInTabFocusChain().

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◆ Q_OBJECT_COMPAT_PROPERTY() [1/4]

QQuickItemPrivate::Q_OBJECT_COMPAT_PROPERTY	(	QQuickItemPrivate	,
		qreal	,
		height	,
		&QQuickItemPrivate::setHeight	,
		&QQuickItemPrivate::heightChanged	)

◆ Q_OBJECT_COMPAT_PROPERTY() [2/4]

QQuickItemPrivate::Q_OBJECT_COMPAT_PROPERTY	(	QQuickItemPrivate	,
		qreal	,
		width	,
		&QQuickItemPrivate::setWidth	,
		&QQuickItemPrivate::widthChanged	)

◆ Q_OBJECT_COMPAT_PROPERTY() [3/4]

QQuickItemPrivate::Q_OBJECT_COMPAT_PROPERTY	(	QQuickItemPrivate	,
		qreal	,
		x	,
		&QQuickItemPrivate::setX	,
		&QQuickItemPrivate::xChanged	)

◆ Q_OBJECT_COMPAT_PROPERTY() [4/4]

QQuickItemPrivate::Q_OBJECT_COMPAT_PROPERTY	(	QQuickItemPrivate	,
		qreal	,
		y	,
		&QQuickItemPrivate::setY	,
		&QQuickItemPrivate::yChanged	)

◆ recursiveRefFromEffectItem()

void QQuickItemPrivate::recursiveRefFromEffectItem ( int refs )

Definition at line 6817 of file qquickitem.cpp.

References QList< T >::at(), child, childItems, effectiveVisible, extra, get(), and QList< T >::size().

Referenced by derefFromEffectItem(), and refFromEffectItem().

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◆ refFromEffectItem()

void QQuickItemPrivate::refFromEffectItem ( bool hide )

Definition at line 6802 of file qquickitem.cpp.

References ChildrenStackingChanged, dirty(), EffectReference, extra, get(), hide(), HideReference, parentItem, and recursiveRefFromEffectItem().

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◆ refWindow()

void QQuickItemPrivate::refWindow ( QQuickWindow * c )

Definition at line 3057 of file qquickitem.cpp.

References QList< T >::at(), child, childItems, dirty(), extra, get(), QQuickWindowPrivate::get(), itemChange(), QQuickItem::ItemSceneChange, parentItem, polishScheduled, Q_ASSERT, qWarning, QList< T >::size(), window, and windowRefCount.

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◆ registerAsContainmentMask()

virtual void QQuickItemPrivate::registerAsContainmentMask	(	QQuickItem *	,
		bool	)

inlinevirtual

Definition at line 426 of file qquickitem_p.h.

◆ removeChild()

void QQuickItemPrivate::removeChild ( QQuickItem * child )

Definition at line 3022 of file qquickitem.cpp.

References child, childItems, ChildrenChanged, QListSpecialMethodsBase< T >::contains(), dirty(), emit, extra, get(), inDestructor, itemChange(), QQuickItem::ItemChildRemovedChange, markSortedChildrenDirty(), Q_ASSERT, QList< T >::removeOne(), setHasCursorInChild(), setHasHoverInChild(), subtreeCursorEnabled, and subtreeHoverEnabled.

Referenced by QQuickItem::setParentItem().

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◆ removeFromDirtyList()

void QQuickItemPrivate::removeFromDirtyList ( )

Definition at line 6790 of file qquickitem.cpp.

References get(), nextDirtyItem, prevDirtyItem, and Q_ASSERT.

Referenced by derefWindow().

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◆ removeItemChangeListener()

void QQuickItemPrivate::removeItemChangeListener	(	QQuickItemChangeListener *	listener,
		ChangeTypes	types )

Definition at line 4070 of file qquickitem.cpp.

References changeListeners, and PRINT_LISTENERS.

Referenced by QQuickShaderEffectSource::~QQuickShaderEffectSource(), QQuickRowPrivate::effectiveLayoutDirectionChange(), QQuickGridPrivate::effectiveLayoutDirectionChange(), QQuickPathViewPrivate::releaseItem(), QQuickItemViewFxItem::trackGeometry(), and QQuickIconLabelPrivate::unwatchChanges().

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◆ removePointerHandler()

void QQuickItemPrivate::removePointerHandler ( QQuickPointerHandler * h )

virtual

Definition at line 9417 of file qquickitem.cpp.

References QObject::destroyed(), QObject::disconnect(), extra, and Q_ASSERT.

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◆ resolveLayoutMirror()

void QQuickItemPrivate::resolveLayoutMirror ( )

Definition at line 1541 of file qquickitem.cpp.

References effectiveLayoutMirror, get(), inheritMirrorFromItem, isMirrorImplicit, QQuickItem::parentItem(), parentItem, and setImplicitLayoutMirror().

Referenced by QQuickLayoutMirroringAttached::resetEnabled(), QQuickLayoutMirroringAttached::setChildrenInherit(), and QQuickLayoutMirroringAttached::setEnabled().

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◆ resources()

QQmlListProperty< QObject > QQuickItemPrivate::resources ( )

Definition at line 5126 of file qquickitem.cpp.

References QQmlListProperty< T >::object, resources_append(), resources_at(), resources_clear(), resources_count(), and resources_removeLast().

Referenced by resources_removeLast().

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◆ resources_append()

void QQuickItemPrivate::resources_append	(	QQmlListProperty< QObject > *	prop,
		QObject *	object )

static

Definition at line 3459 of file qquickitem.cpp.

References _q_resourceObjectDeleted(), get(), qmlobject_connect, SIGNAL, and SLOT.

Referenced by data_append(), and resources().

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◆ resources_at()

QObject * QQuickItemPrivate::resources_at	(	QQmlListProperty< QObject > *	prop,
		qsizetype	index )

static

Definition at line 3453 of file qquickitem.cpp.

References get().

Referenced by data_at(), and resources().

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◆ resources_clear()

void QQuickItemPrivate::resources_clear ( QQmlListProperty< QObject > * prop )

static

Definition at line 3476 of file qquickitem.cpp.

References _q_resourceObjectDeleted(), get(), qmlobject_disconnect, SIGNAL, and SLOT.

Referenced by data_clear(), and resources().

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◆ resources_count()

qsizetype QQuickItemPrivate::resources_count ( QQmlListProperty< QObject > * prop )

static

Definition at line 3470 of file qquickitem.cpp.

References get().

Referenced by data_at(), data_count(), data_removeLast(), and resources().

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◆ resources_removeLast()

void QQuickItemPrivate::resources_removeLast ( QQmlListProperty< QObject > * prop )

static

Definition at line 3489 of file qquickitem.cpp.

References _q_resourceObjectDeleted(), get(), qmlobject_disconnect, QQmlListProperty< T >::removeLast, resources(), SIGNAL, and SLOT.

Referenced by data_removeLast(), and resources().

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◆ right()

QQuickAnchorLine QQuickItemPrivate::right ( ) const

Definition at line 4503 of file qquickitem.cpp.

References QQuickAnchors::RightAnchor.

◆ rootNode()

QSGRootNode * QQuickItemPrivate::rootNode ( ) const

inline

Definition at line 685 of file qquickitem_p.h.

◆ rotation()

qreal QQuickItemPrivate::rotation ( ) const

inline

Definition at line 606 of file qquickitem_p.h.

Referenced by itemToParentTransform(), and QQuickFlipablePrivate::updateSide().

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◆ scale()

qreal QQuickItemPrivate::scale ( ) const

inline

Definition at line 605 of file qquickitem_p.h.

Referenced by itemToParentTransform(), and QQuickFlipablePrivate::updateSide().

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◆ sceneGraphContext()

QSGContext * QQuickItemPrivate::sceneGraphContext ( ) const

inline

Definition at line 1009 of file qquickitem_p.h.

References context, QObjectPrivate::get(), Q_ASSERT, and window().

Referenced by QQuickTextEditPrivate::createTextNode().

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◆ sceneGraphRenderContext()

QSGRenderContext * QQuickItemPrivate::sceneGraphRenderContext ( ) const

inline

Definition at line 1015 of file qquickitem_p.h.

References context, QObjectPrivate::get(), Q_ASSERT, and window().

Referenced by QQuickTextEditPrivate::createTextNode().

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◆ setAccessible()

void QQuickItemPrivate::setAccessible ( )

Definition at line 1669 of file qquickitem.cpp.

References isAccessible.

◆ setCulled()

void QQuickItemPrivate::setCulled ( bool cull )

Definition at line 6849 of file qquickitem.cpp.

References culled, dirty(), extra, and HideReference.

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◆ setEffectiveEnableRecur()

void QQuickItemPrivate::setEffectiveEnableRecur	(	QQuickItem *	scope,
		bool	newEffectiveEnable )

Definition at line 6664 of file qquickitem.cpp.

References activeFocus, QList< T >::at(), childItems, deliveryAgentPrivate(), QQuickDeliveryAgentPrivate::DontChangeFocusProperty, QQuickDeliveryAgentPrivate::DontChangeSubFocusItem, effectiveEnable, emit, explicitEnable, focus, get(), isAccessible, itemChange(), QQuickItem::ItemEnabledHasChanged, QQuickItem::ItemIsFocusScope, Qt::OtherFocusReason, and QList< T >::size().

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◆ setEffectiveVisibleRecur()

bool QQuickItemPrivate::setEffectiveVisibleRecur ( bool newEffectiveVisible )

Definition at line 6614 of file qquickitem.cpp.

References QList< T >::at(), childItems, ChildrenStackingChanged, deliveryAgentPrivate(), dirty(), effectiveVisible, emit, explicitVisible, get(), inDestructor, isAccessible, itemChange(), QQuickItem::ItemVisibleHasChanged, parentItem, QList< T >::size(), Visible, and window.

Referenced by setVisible().

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◆ setFocusIfNeeded()

bool QQuickItemPrivate::setFocusIfNeeded ( QEvent::Type eventType )

Definition at line 1709 of file qquickitem.cpp.

References Qt::ClickFocus, focusPolicy, QEvent::MouseButtonDblClick, QEvent::MouseButtonPress, QEvent::MouseButtonRelease, Qt::MouseFocusReason, policy, setActiveFocus(), QGuiApplication::styleHints(), QEvent::TouchBegin, QEvent::TouchEnd, QEvent::Wheel, and Qt::WheelFocus.

Referenced by deliverPointerEvent().

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◆ setHasCursorInChild()

void QQuickItemPrivate::setHasCursorInChild ( bool hasCursor )

Definition at line 8190 of file qquickitem.cpp.

References childItems, get(), hasCursor, QObjectData::parent, Q_UNUSED, and subtreeCursorEnabled.

Referenced by addChild(), and removeChild().

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◆ setHasHoverInChild()

void QQuickItemPrivate::setHasHoverInChild ( bool hasHover )

Definition at line 8218 of file qquickitem.cpp.

References childItems, get(), hasEnabledHoverHandlers(), hoverEnabled, QObjectData::parent, qCDebug, and subtreeHoverEnabled.

Referenced by addChild(), and removeChild().

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◆ setHeight()

void QQuickItemPrivate::setHeight ( qreal height )

inline

Definition at line 591 of file qquickitem_p.h.

◆ setImplicitAntialiasing()

void QQuickItemPrivate::setImplicitAntialiasing ( bool antialiasing )

Definition at line 7069 of file qquickitem.cpp.

References antialiasing, componentComplete, emit, and implicitAntialiasing.

Referenced by QQuickRectanglePrivate::maybeSetImplicitAntialiasing().

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◆ setImplicitLayoutMirror()

void QQuickItemPrivate::setImplicitLayoutMirror	(	bool	mirror,
		bool	inherit )

Definition at line 1552 of file qquickitem.cpp.

References QList< T >::at(), child, childItems, effectiveLayoutMirror, get(), i, inheritedLayoutMirror, inheritMirrorFromItem, inheritMirrorFromParent, isMirrorImplicit, setLayoutMirror(), and QList< T >::size().

Referenced by init(), and resolveLayoutMirror().

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◆ setLastFocusChangeReason()

void QQuickItemPrivate::setLastFocusChangeReason ( Qt::FocusReason reason )

Definition at line 1747 of file qquickitem.cpp.

References focusReason.

Referenced by QQuickControlPrivate::itemFocusChanged().

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◆ setLayoutMirror()

void QQuickItemPrivate::setLayoutMirror ( bool mirror )

Definition at line 1573 of file qquickitem.cpp.

References _anchors, effectiveLayoutMirror, emit, extra, QQuickAnchorsPrivate::get(), and mirrorChange().

Referenced by QQuickLayoutMirroringAttached::setEnabled(), and setImplicitLayoutMirror().

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◆ setSizePolicy()

void QQuickItemPrivate::setSizePolicy	(	const QLayoutPolicy::Policy &	horizontalPolicy,
		const QLayoutPolicy::Policy &	verticalPolicy )

Definition at line 3338 of file qquickitem.cpp.

References QLayoutPolicy::setHorizontalPolicy(), QLayoutPolicy::setVerticalPolicy(), and szPolicy.

Referenced by QQuickPathViewPrivate::QQuickPathViewPrivate(), QQuickFlickablePrivate::init(), QQuickTextEditPrivate::init(), QQuickTextInputPrivate::init(), QQuickAbstractButtonPrivate::init(), and QQuickContainerPrivate::init().

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◆ setState()

void QQuickItemPrivate::setState ( const QString & state )

Definition at line 5280 of file qquickitem.cpp.

References _states(), QQuickStateGroup::setState(), and state().

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◆ setTransparentForPositioner()

void QQuickItemPrivate::setTransparentForPositioner ( bool trans )

Definition at line 6719 of file qquickitem.cpp.

References extra.

Referenced by QQuickRepeaterPrivate::QQuickRepeaterPrivate().

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◆ setVisible()

void QQuickItemPrivate::setVisible ( bool visible )

virtual

Reimplemented in QDeclarativeGeoMapCopyrightNoticePrivate.

Definition at line 6526 of file qquickitem.cpp.

References calcEffectiveVisible(), dirty(), emit, explicitVisible, parentItem, setEffectiveVisibleRecur(), Visible, and QQuickItem::visibleChildrenChanged().

Referenced by QDeclarativeGeoMapCopyrightNoticePrivate::setVisible().

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◆ setWidth()

void QQuickItemPrivate::setWidth ( qreal width )

inline

Definition at line 588 of file qquickitem_p.h.

◆ setX()

void QQuickItemPrivate::setX ( qreal x )

inline

Definition at line 582 of file qquickitem_p.h.

◆ setY()

void QQuickItemPrivate::setY ( qreal y )

inline

Definition at line 585 of file qquickitem_p.h.

◆ siblingOrderChanged()

void QQuickItemPrivate::siblingOrderChanged ( )

Definition at line 3767 of file qquickitem.cpp.

References QQuickItemChangeListener::itemSiblingOrderChanged(), notifyChangeListeners(), and SiblingOrder.

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◆ sizePolicy()

QLayoutPolicy QQuickItemPrivate::sizePolicy ( ) const

Definition at line 3333 of file qquickitem.cpp.

References szPolicy.

◆ state()

QString QQuickItemPrivate::state ( ) const

Definition at line 5272 of file qquickitem.cpp.

References _stateGroup, and QQuickStateGroup::state.

Referenced by setState().

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◆ states()

QQmlListProperty< QQuickState > QQuickItemPrivate::states ( )

Definition at line 5230 of file qquickitem.cpp.

References _states(), and QQuickStateGroup::statesProperty().

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◆ top()

QQuickAnchorLine QQuickItemPrivate::top ( ) const

Definition at line 4515 of file qquickitem.cpp.

References QQuickAnchors::TopAnchor.

Referenced by QQuickStackViewPrivate::replaceElements(), and QQuickTextInputPrivate::updateVerticalScroll().

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◆ transform_append()

void QQuickItemPrivate::transform_append	(	QQmlListProperty< QQuickTransform > *	list,
		QQuickTransform *	transform )

static

Definition at line 3620 of file qquickitem.cpp.

◆ transform_at()

QQuickTransform * QQuickItemPrivate::transform_at	(	QQmlListProperty< QQuickTransform > *	list,
		qsizetype	idx )

static

Definition at line 3629 of file qquickitem.cpp.

References get().

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◆ transform_clear()

void QQuickItemPrivate::transform_clear ( QQmlListProperty< QQuickTransform > * list )

static

Definition at line 3640 of file qquickitem.cpp.

References get(), QQuickTransformPrivate::get(), QQuickTransformPrivate::items, QList< T >::removeOne(), and Transform.

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◆ transform_count()

qsizetype QQuickItemPrivate::transform_count ( QQmlListProperty< QQuickTransform > * list )

static

Definition at line 3574 of file qquickitem.cpp.

References get().

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◆ transformChanged()

bool QQuickItemPrivate::transformChanged ( QQuickItem * transformedItem )

virtual

QQuickItemPrivate::dirty() calls transformChanged(q) to inform this item and all its children that its transform has changed, with transformedItem always being the parent item that caused the change. Override to react, e.g. to call update() if the item needs to re-generate SG nodes based on visible extents. If you override in a subclass, you must also call this (superclass) function and return the value from it.

This function recursively visits all children as long as subtreeTransformChangedEnabled is true, returns true if any of those children still has the ItemObservesViewport flag set, but otherwise turns subtreeTransformChangedEnabled off, if no children are observing.

Reimplemented in QQuickFlipablePrivate, QQuickTextPrivate, QQuickTextEditPrivate, and QQuickWindowContainerPrivate.

Definition at line 5454 of file qquickitem.cpp.

References child, children(), Clip, componentComplete, dirty(), dirtyAttributes, extra, get(), QQuickItem::ItemObservesViewport, paintOrderChildItems(), qCDebug, ret, and subtreeTransformChangedEnabled.