#include <qquickparticleaffector_p.h>

Inheritance diagram for QQuickParticleAffector:

Collaboration diagram for QQuickParticleAffector:

Public Slots
void	setSystem (QQuickParticleSystem *arg)

void	setGroups (const QStringList &arg)

void	setEnabled (bool arg)

void	setOnceOff (bool arg)

void	setShape (QQuickParticleExtruder *arg)

void	setWhenCollidingWith (const QStringList &arg)

void	updateOffsets ()

Public Slots inherited from QQuickItem
void	update ()
	Schedules a call to updatePaintNode() for this item.

Public Slots inherited from QObject
void	deleteLater ()
	\threadsafe

Signals
void	systemChanged (QQuickParticleSystem *arg)

void	groupsChanged (const QStringList &arg)

void	enabledChanged (bool arg)

void	onceChanged (bool arg)

void	shapeChanged (QQuickParticleExtruder *arg)

void	affected (qreal x, qreal y)

void	whenCollidingWithChanged (const QStringList &arg)

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
	QQuickParticleAffector (QQuickItem *parent=nullptr)
	Applies alterations to the attributes of logical particles at any point in their lifetime.

virtual void	affectSystem (qreal dt)

virtual void	reset (QQuickParticleData *)

QQuickParticleSystem *	system () const

QStringList	groups () const

bool	enabled () const

bool	onceOff () const

QQuickParticleExtruder *	shape () const

QStringList	whenCollidingWith () const

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 the specified sibling item to the index before this item within the list of children.

void	stackAfter (const QQuickItem *)
	Moves the specified sibling item to the index after this 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 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	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
virtual bool	affectParticle (QQuickParticleData *d, qreal dt)

bool	activeGroup (int g)

bool	shouldAffect (QQuickParticleData *datum)

void	postAffect (QQuickParticleData *datum)

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

bool	isAffectedConnected ()

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.

virtual void	itemChange (ItemChange, const ItemChangeData &)
	Called when change occurs for this item.

virtual void	geometryChange (const QRectF &newGeometry, const QRectF &oldGeometry)

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 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)

Protected Attributes
bool	m_needsReset:1

bool	m_ignoresTime:1

bool	m_onceOff:1

bool	m_enabled:1

QQuickParticleSystem *	m_system

QStringList	m_groups

QPointF	m_offset

QSet< QPair< int, int > >	m_onceOffed

Protected Attributes inherited from QObject
QScopedPointer< QObjectData >	d_ptr

Static Protected Attributes
static const qreal	simulationDelta = 0.020

static const qreal	simulationCutoff = 1.000

Properties
QQuickParticleSystem *	system

QStringList	groups

QStringList	whenCollidingWith

bool	enabled

bool	once

QQuickParticleExtruder *	shape

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 This property holds the list of transformations to apply.

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

Friends
class	QQuickParticleSystem

Additional Inherited Members
Public Types inherited from QQuickItem
enum	Flag { ItemClipsChildrenToShape = 0x01 , ItemIsFocusScope = 0x04 , ItemHasContents = 0x08 , ItemAcceptsDrops = 0x10 , ItemIsViewport = 0x20 , ItemObservesViewport = 0x40 }
	\qmltype Item \instantiates QQuickItem \inherits QtObject \inqmlmodule QtQuick More...

enum	ItemChange { ItemChildAddedChange , ItemChildRemovedChange , ItemSceneChange , ItemVisibleHasChanged , ItemParentHasChanged , ItemOpacityHasChanged , ItemActiveFocusHasChanged , ItemRotationHasChanged , ItemAntialiasingHasChanged , ItemDevicePixelRatioHasChanged , ItemEnabledHasChanged }
	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 {QScreen::devicePixelRatio}{device pixel ratio}. More...

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

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 26 of file qquickparticleaffector_p.h.

Constructor & Destructor Documentation

◆ QQuickParticleAffector()

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

explicit

Applies alterations to the attributes of logical particles at any point in their lifetime.

\qmltype Affector

! \instantiates QQuickParticleAffector \inqmlmodule QtQuick.Particles

The base Affector does not alter any attributes, but can be used to emit a signal when a particle meets certain conditions.

If an affector has a defined size, then it will only affect particles within its size and position on screen.

Affectors have different performance characteristics to the other particle system elements. In

particular, they have some simplifications to try to maintain a simulation at real-time or faster. When running a system with Affectors, irregular frame timings that grow too large ( > one second per frame) will cause the Affectors to try and cut corners with a faster but less accurate simulation. If the system has multiple affectors the order in which they are applied is not guaranteed, and when simulating larger time shifts they will simulate the whole shift each, which can lead to different results compared to smaller time shifts.

Accurate simulation for large numbers of particles (hundreds) with multiple affectors may be

possible on some hardware, but on less capable hardware you should expect small irregularties in the simulation as simulates with worse granularity.

\qmlproperty ParticleSystem QtQuick.Particles::Affector::system This is the system which will be affected by the element. If the Affector is a direct child of a ParticleSystem, it will automatically be associated with it.

\qmlproperty list<string> QtQuick.Particles::Affector::groups Which logical particle groups will be affected.

If empty, it will affect all particles.

\qmlproperty list<string> QtQuick.Particles::Affector::whenCollidingWith If any logical particle groups are specified here, then the affector will only be triggered if the particle being examined intersects with a particle of one of these groups.

This is different from the groups property. The groups property selects which particles might be examined, and if they meet other criteria (including being within the bounds of the Affector, modified by shape) then they will be tested again to see if they intersect with a particles from one of the particle groups in whenCollidingWith.

By default, no groups are specified.

\qmlproperty bool QtQuick.Particles::Affector::enabled If enabled is set to false, this affector will not affect any particles.

Usually this is used to conditionally turn an affector on or off.

Default value is true.

\qmlproperty bool QtQuick.Particles::Affector::once If once is set to true, this affector will only affect each particle once in their lifetimes. If the affector normally simulates a continuous effect over time, then it will simulate the effect of one second of time the one instant it affects the particle.

Default value is false.

\qmlproperty Shape QtQuick.Particles::Affector::shape If a size has been defined, the shape property can be used to affect a non-rectangular area.

\qmlsignal QtQuick.Particles::Affector::affected(real x, real y)

This signal is emitted when a particle is selected to be affected. It will not be emitted if a particle is considered by the Affector but not actually altered in any way.

In the special case where an Affector has no possible effect (e.g. Affector {}), this signal will be emitted for all particles being considered if you connect to it. This allows you to execute arbitrary code in response to particles (use the Affector::onAffectParticles signal handler if you want to execute code which affects the particles themselves). As this executes JavaScript code per particle, it is not recommended to use this signal with a high-volume particle system.

({x}, {y}) is the particle's current position.

Definition at line 100 of file qquickparticleaffector.cpp.

Member Function Documentation

◆ activeGroup()

bool QQuickParticleAffector::activeGroup ( int g )

protected

Definition at line 119 of file qquickparticleaffector.cpp.

References QSet< T >::clear(), QSet< T >::contains(), QQuickParticleSystem::groupIds, QSet< T >::isEmpty(), m_groups, and m_system.

Referenced by affectSystem(), QQuickCustomAffector::affectSystem(), QQuickTurbulenceAffector::affectSystem(), reset(), and shouldAffect().

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◆ affected

void QQuickParticleAffector::affected	(	qreal	x,
		qreal	y )

signal

Referenced by affectSystem(), QQuickCustomAffector::affectSystem(), isAffectedConnected(), and postAffect().

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◆ affectParticle()

bool QQuickParticleAffector::affectParticle	(	QQuickParticleData *	d,
		qreal	dt )

protectedvirtual

Reimplemented in QQuickAgeAffector, QQuickCustomAffector, QQuickFrictionAffector, QQuickGravityAffector, QQuickGroupGoalAffector, QQuickAttractorAffector, QQuickSpriteGoalAffector, and QQuickWanderAffector.

Definition at line 209 of file qquickparticleaffector.cpp.

Referenced by affectSystem().

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◆ affectSystem()

void QQuickParticleAffector::affectSystem ( qreal dt )

virtual

Reimplemented in QQuickCustomAffector, and QQuickTurbulenceAffector.

Definition at line 170 of file qquickparticleaffector.cpp.

References activeGroup(), affected(), affectParticle(), d, QQuickParticleSystem::groupData, m_enabled, m_ignoresTime, m_onceOff, m_system, postAffect(), shouldAffect(), simulationCutoff, simulationDelta, QQuickParticleSystem::timeInt, and updateOffsets().

Referenced by QQuickCustomAffector::affectSystem().

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◆ componentComplete()

void QQuickParticleAffector::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 112 of file qquickparticleaffector.cpp.

References QQuickItem::componentComplete(), m_system, QQuickItem::parentItem(), and setSystem().

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◆ enabled()

bool QQuickParticleAffector::enabled ( ) const

inline

Definition at line 54 of file qquickparticleaffector_p.h.

◆ enabledChanged

void QQuickParticleAffector::enabledChanged ( bool arg )

signal

◆ groups()

QStringList QQuickParticleAffector::groups ( ) const

inline

Definition at line 49 of file qquickparticleaffector_p.h.

◆ groupsChanged

void QQuickParticleAffector::groupsChanged ( const QStringList & arg )

signal

◆ isAffectedConnected()

bool QQuickParticleAffector::isAffectedConnected ( )

protected

Definition at line 106 of file qquickparticleaffector.cpp.

References affected(), and IS_SIGNAL_CONNECTED.

Referenced by QQuickCustomAffector::affectSystem(), and postAffect().

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◆ onceChanged

void QQuickParticleAffector::onceChanged ( bool arg )

signal

◆ onceOff()

bool QQuickParticleAffector::onceOff ( ) const

inline

Definition at line 59 of file qquickparticleaffector_p.h.

◆ postAffect()

void QQuickParticleAffector::postAffect ( QQuickParticleData * datum )

protected

Definition at line 155 of file qquickparticleaffector.cpp.

References affected(), d, emit, isAffectedConnected(), m_onceOff, m_onceOffed, m_system, QQuickParticleSystem::needsReset, and qMakePair().

Referenced by affectSystem(), QQuickCustomAffector::affectSystem(), and QQuickTurbulenceAffector::affectSystem().

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◆ reset()

void QQuickParticleAffector::reset ( QQuickParticleData * pd )

virtual

Definition at line 214 of file qquickparticleaffector.cpp.

References activeGroup(), QQuickParticleData::groupId, QQuickParticleData::index, m_onceOff, m_onceOffed, qMakePair(), and QSet< T >::remove().

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◆ setEnabled

void QQuickParticleAffector::setEnabled ( bool arg )

inlineslot

Definition at line 110 of file qquickparticleaffector_p.h.

References arg, and Q_EMIT.

◆ setGroups

void QQuickParticleAffector::setGroups ( const QStringList & arg )

inlineslot

Definition at line 101 of file qquickparticleaffector_p.h.

References arg, and Q_EMIT.

◆ setOnceOff

void QQuickParticleAffector::setOnceOff ( bool arg )

inlineslot

Definition at line 118 of file qquickparticleaffector_p.h.

References arg, and Q_EMIT.

◆ setShape

void QQuickParticleAffector::setShape ( QQuickParticleExtruder * arg )

inlineslot

Definition at line 127 of file qquickparticleaffector_p.h.

References arg, and Q_EMIT.

◆ setSystem

void QQuickParticleAffector::setSystem ( QQuickParticleSystem * arg )

inlineslot

Definition at line 91 of file qquickparticleaffector_p.h.

References arg, and Q_EMIT.

Referenced by componentComplete().

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◆ setWhenCollidingWith

void QQuickParticleAffector::setWhenCollidingWith ( const QStringList & arg )

inlineslot

Definition at line 135 of file qquickparticleaffector_p.h.

References arg, and Q_EMIT.

◆ shape()

QQuickParticleExtruder * QQuickParticleAffector::shape ( ) const

inline

Definition at line 64 of file qquickparticleaffector_p.h.

◆ shapeChanged

void QQuickParticleAffector::shapeChanged ( QQuickParticleExtruder * arg )

signal

◆ shouldAffect()

bool QQuickParticleAffector::shouldAffect ( QQuickParticleData * datum )

protected

Definition at line 132 of file qquickparticleaffector.cpp.

References activeGroup(), QQuickParticleExtruder::contains(), QSet< T >::contains(), d, QQuickItem::height, m_offset, m_onceOff, m_onceOffed, m_system, qMakePair(), QQuickItem::width, QPointF::x(), and QPointF::y().

Referenced by affectSystem(), QQuickCustomAffector::affectSystem(), and QQuickTurbulenceAffector::affectSystem().

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◆ system()

QQuickParticleSystem * QQuickParticleAffector::system ( ) const

inline

Definition at line 44 of file qquickparticleaffector_p.h.

◆ systemChanged

void QQuickParticleAffector::systemChanged ( QQuickParticleSystem * arg )

signal

◆ updateOffsets

void QQuickParticleAffector::updateOffsets ( )

slot

Definition at line 221 of file qquickparticleaffector.cpp.

References m_offset, m_system, and QQuickItem::mapFromItem().

Referenced by affectSystem(), QQuickCustomAffector::affectSystem(), and QQuickTurbulenceAffector::affectSystem().

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◆ whenCollidingWith()

QStringList QQuickParticleAffector::whenCollidingWith ( ) const

inline

Definition at line 69 of file qquickparticleaffector_p.h.

◆ whenCollidingWithChanged

void QQuickParticleAffector::whenCollidingWithChanged ( const QStringList & arg )

signal

Friends And Related Symbol Documentation

◆ QQuickParticleSystem

friend class QQuickParticleSystem

friend

Definition at line 146 of file qquickparticleaffector_p.h.

Member Data Documentation

◆ m_enabled

bool QQuickParticleAffector::m_enabled

protected

Definition at line 151 of file qquickparticleaffector_p.h.

Referenced by affectSystem(), QQuickCustomAffector::affectSystem(), and QQuickTurbulenceAffector::affectSystem().

◆ m_groups

QStringList QQuickParticleAffector::m_groups

protected

Definition at line 154 of file qquickparticleaffector_p.h.

Referenced by activeGroup().

◆ m_ignoresTime

bool QQuickParticleAffector::m_ignoresTime

protected

Definition at line 149 of file qquickparticleaffector_p.h.

Referenced by QQuickGroupGoalAffector::QQuickGroupGoalAffector(), QQuickSpriteGoalAffector::QQuickSpriteGoalAffector(), and affectSystem().

◆ m_needsReset

bool QQuickParticleAffector::m_needsReset

protected

Definition at line 148 of file qquickparticleaffector_p.h.

Referenced by QQuickWanderAffector::QQuickWanderAffector().

◆ m_offset

QPointF QQuickParticleAffector::m_offset

protected

Definition at line 163 of file qquickparticleaffector_p.h.

Referenced by QQuickAttractorAffector::affectParticle(), QQuickTurbulenceAffector::affectSystem(), shouldAffect(), and updateOffsets().

◆ m_onceOff

bool QQuickParticleAffector::m_onceOff

protected

Definition at line 150 of file qquickparticleaffector_p.h.

Referenced by affectSystem(), QQuickCustomAffector::affectSystem(), postAffect(), reset(), and shouldAffect().

◆ m_onceOffed

QSet<QPair<int, int> > QQuickParticleAffector::m_onceOffed

protected

Definition at line 164 of file qquickparticleaffector_p.h.

Referenced by QQuickCustomAffector::affectSystem(), postAffect(), reset(), and shouldAffect().

◆ m_system

QQuickParticleSystem* QQuickParticleAffector::m_system

protected

Definition at line 153 of file qquickparticleaffector_p.h.

◆ simulationCutoff

const qreal QQuickParticleAffector::simulationCutoff = 1.000

staticprotected

Definition at line 161 of file qquickparticleaffector_p.h.

Referenced by affectSystem(), and QQuickCustomAffector::affectSystem().

◆ simulationDelta

const qreal QQuickParticleAffector::simulationDelta = 0.020

staticprotected

Definition at line 160 of file qquickparticleaffector_p.h.

Referenced by affectSystem(), and QQuickCustomAffector::affectSystem().

Property Documentation

◆ enabled

bool QQuickParticleAffector::enabled

readwrite

Definition at line 32 of file qquickparticleaffector_p.h.

◆ groups

QStringList QQuickParticleAffector::groups

readwrite

Definition at line 30 of file qquickparticleaffector_p.h.

◆ once

bool QQuickParticleAffector::once

readwrite

Definition at line 33 of file qquickparticleaffector_p.h.

◆ shape

QQuickParticleExtruder* QQuickParticleAffector::shape

readwrite

Definition at line 34 of file qquickparticleaffector_p.h.

◆ system

QQuickParticleSystem* QQuickParticleAffector::system

readwrite

Definition at line 29 of file qquickparticleaffector_p.h.

◆ whenCollidingWith

QStringList QQuickParticleAffector::whenCollidingWith

readwrite

Definition at line 31 of file qquickparticleaffector_p.h.

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

qtdeclarative/src/particles/qquickparticleaffector_p.h (31a60b518bd7d811172b887501e831e6e4e4a9c1)
qtdeclarative/src/particles/qquickparticleaffector.cpp (2ed0abd5533750343a382f5b4ab5dcab6d52eff2)

Public Slots

Signals

Public Member Functions

Protected Member Functions

Protected Attributes

Static Protected Attributes

Properties

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QQuickParticleAffector()

Member Function Documentation

◆ activeGroup()

◆ affected

◆ affectParticle()

◆ affectSystem()

◆ componentComplete()

◆ enabled()

◆ enabledChanged

◆ groups()

◆ groupsChanged

◆ isAffectedConnected()

◆ onceChanged

◆ onceOff()

◆ postAffect()

◆ reset()

◆ setEnabled

◆ setGroups

◆ setOnceOff

◆ setShape

◆ setSystem

◆ setWhenCollidingWith

◆ shape()

◆ shapeChanged

◆ shouldAffect()

◆ system()

◆ systemChanged

◆ updateOffsets

◆ whenCollidingWith()

◆ whenCollidingWithChanged

Friends And Related Symbol Documentation

◆ QQuickParticleSystem

Member Data Documentation

◆ m_enabled

◆ m_groups

◆ m_ignoresTime

◆ m_needsReset

◆ m_offset

◆ m_onceOff

◆ m_onceOffed

◆ m_system

◆ simulationCutoff

◆ simulationDelta

Property Documentation

◆ enabled

◆ groups

◆ once

◆ shape

◆ system

◆ whenCollidingWith