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Qt 6.x
The Qt SDK
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#include <qquickparticleemitter_p.h>
Public Slots | |
void | pulse (int milliseconds) |
void | burst (int num) |
void | burst (int num, qreal x, qreal y) |
void | setEnabled (bool arg) |
void | setParticlesPerSecond (qreal arg) |
void | setParticleDuration (int arg) |
void | setSystem (QQuickParticleSystem *arg) |
void | setGroup (const QString &arg) |
void | setParticleDurationVariation (int arg) |
void | setExtruder (QQuickParticleExtruder *arg) |
void | setParticleSize (qreal arg) |
void | setParticleEndSize (qreal arg) |
void | setParticleSizeVariation (qreal arg) |
void | setVelocity (QQuickDirection *arg) |
void | setAcceleration (QQuickDirection *arg) |
void | setMaxParticleCount (int arg) |
void | setStartTime (int arg) |
virtual void | reset () |
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void | update () |
Schedules a call to updatePaintNode() for this item. | |
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void | deleteLater () |
\threadsafe | |
Public Member Functions | |
QQuickParticleEmitter (QQuickItem *parent=nullptr) | |
Emits logical particles. | |
virtual | ~QQuickParticleEmitter () |
virtual void | emitWindow (int timeStamp) |
bool | enabled () const |
qreal | particlesPerSecond () const |
int | particleDuration () const |
QQuickParticleSystem * | system () const |
QString | group () const |
QQuickParticleGroupData::ID | groupId () const |
int | particleDurationVariation () const |
qreal | velocityFromMovement () const |
void | setVelocityFromMovement (qreal s) |
void | componentComplete () override |
\reimp Derived classes should call the base class method before adding their own actions to perform at componentComplete. | |
int | particleCount () const |
QQuickParticleExtruder * | extruder () const |
qreal | particleSize () const |
qreal | particleEndSize () const |
qreal | particleSizeVariation () const |
QQuickDirection * | velocity () const |
QQuickDirection * | acceleration () const |
int | maxParticleCount () const |
int | startTime () const |
void | reclaculateGroupId () const |
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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. | |
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. | |
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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 | event (QEvent *event) |
This virtual function receives events to an object and should return true if the event e was recognized and processed. | |
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. | |
void | moveToThread (QThread *thread) |
Changes the thread affinity for this object and its children. | |
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::milliseconds time, Qt::TimerType timerType=Qt::CoarseTimer) |
void | killTimer (int id) |
Kills the timer with timer identifier, id. | |
template<typename T > | |
T | findChild (const QString &aName=QString(), 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 (const QString &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 > | |
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 . | |
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QQmlParserStatus () | |
virtual | ~QQmlParserStatus () |
virtual void | classBegin ()=0 |
Invoked after class creation, but before any properties have been set. | |
virtual void | componentComplete ()=0 |
Invoked after the root component that caused this instantiation has completed construction. | |
Protected Member Functions | |
QQuickParticleExtruder * | effectiveExtruder () |
bool | isEmitConnected () |
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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. | |
void | componentComplete () override |
\reimp Derived classes should call the base class method before adding their own actions to perform at componentComplete. | |
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) | |
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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 | |
qreal | m_particlesPerSecond |
int | m_particleDuration |
int | m_particleDurationVariation |
bool | m_enabled |
QQuickParticleSystem * | m_system |
QQuickParticleExtruder * | m_extruder |
QQuickParticleExtruder * | m_defaultExtruder |
QQuickDirection * | m_velocity |
QQuickDirection * | m_acceleration |
qreal | m_particleSize |
qreal | m_particleEndSize |
qreal | m_particleSizeVariation |
int | m_startTime |
bool | m_overwrite |
int | m_pulseLeft |
QList< QPair< int, QPointF > > | m_burstQueue |
int | m_maxParticleCount |
qreal | m_velocity_from_movement |
int | m_emitCap |
bool | m_reset_last |
qreal | m_last_timestamp |
qreal | m_last_emission |
QPointF | m_last_emitter |
QPointF | m_last_last_emitter |
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QScopedPointer< QObjectData > | d_ptr |
Properties | |
QQuickParticleSystem * | system |
QString | group |
QQuickParticleExtruder * | shape |
bool | enabled |
int | startTime |
qreal | emitRate |
int | lifeSpan |
int | lifeSpanVariation |
int | maximumEmitted |
qreal | size |
qreal | endSize |
qreal | sizeVariation |
QQuickDirection * | velocity |
QQuickDirection * | acceleration |
qreal | velocityFromMovement |
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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 | |
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 | |
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QString | objectName |
the name of this object | |
Additional Inherited Members | |
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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) |
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const QSize & | targetSize = QSize()) |
qreal y | const |
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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) | |
Definition at line 29 of file qquickparticleemitter_p.h.
Enumerator | |
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InfiniteLife |
Definition at line 58 of file qquickparticleemitter_p.h.
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Emits logical particles.
\qmltype Emitter
! \instantiates QQuickParticleEmitter \inqmlmodule QtQuick.Particles
This element emits logical particles into the ParticleSystem, with the given starting attributes.
Note that logical particles are not automatically rendered, you will need to have one or more ParticlePainter elements visualizing them.
Note that the given starting attributes can be modified at any point in the particle's lifetime by any Affector element in the same ParticleSystem. This includes attributes like lifespan.
\qmlproperty ParticleSystem QtQuick.Particles::Emitter::system
This is the Particle system that the Emitter will emit into. This can be omitted if the Emitter is a direct child of the ParticleSystem
\qmlproperty string QtQuick.Particles::Emitter::group
This is the logical particle group which it will emit into.
Default value is "" (empty string).
\qmlproperty Shape QtQuick.Particles::Emitter::shape
This shape is applied with the size of the Emitter. Particles will be emitted randomly from any area covered by the shape.
The default shape is a filled in rectangle, which corresponds to the full bounding box of the Emitter.
\qmlproperty bool QtQuick.Particles::Emitter::enabled
If set to false, the emitter will cease emissions until it is set to true.
Default value is true.
\qmlproperty real QtQuick.Particles::Emitter::emitRate
Number of particles emitted per second.
Default value is 10 particles per second.
\qmlproperty int QtQuick.Particles::Emitter::lifeSpan
The time in milliseconds each emitted particle should last for.
If you do not want particles to automatically die after a time, for example if you wish to dispose of them manually, set lifeSpan to Emitter.InfiniteLife.
lifeSpans greater than or equal to 600000 (10 minutes) will be treated as infinite. Particles with lifeSpans less than or equal to 0 will start out dead.
Default value is 1000 (one second).
\qmlproperty int QtQuick.Particles::Emitter::lifeSpanVariation
Particle lifespans will vary by up to this much in either direction.
Default value is 0.
\qmlproperty int QtQuick.Particles::Emitter::maximumEmitted
The maximum number of particles at a time that this emitter will have alive.
This can be set as a performance optimization (when using burst and pulse) or to stagger emissions.
If this is set to a number below zero, then there is no maximum limit on the number of particles this emitter can have alive.
The default value is -1.
\qmlproperty int QtQuick.Particles::Emitter::startTime
If this value is set when the emitter is loaded, then it will emit particles from the past, up to startTime milliseconds ago. These will simulate as if they were emitted then, but will not have any affectors applied to them. Affectors will take effect from the present time.
\qmlproperty real QtQuick.Particles::Emitter::size
The size in pixels of the particles at the start of their life.
Default value is 16.
\qmlproperty real QtQuick.Particles::Emitter::endSize
The size in pixels of the particles at the end of their life. Size will be linearly interpolated during the life of the particle from this value and size. If endSize is -1, then the size of the particle will remain constant at the starting size.
Default value is -1.
\qmlproperty real QtQuick.Particles::Emitter::sizeVariation
The size of a particle can vary by this much up or down from size/endSize. The same random addition is made to both size and endSize for a single particle.
Default value is 0.
\qmlproperty StochasticDirection QtQuick.Particles::Emitter::velocity
The starting velocity of the particles emitted.
\qmlproperty StochasticDirection QtQuick.Particles::Emitter::acceleration
The starting acceleraton of the particles emitted.
\qmlproperty qreal QtQuick.Particles::Emitter::velocityFromMovement
If this value is non-zero, then any movement of the emitter will provide additional starting velocity to the particles based on the movement. The additional vector will be the same angle as the emitter's movement, with a magnitude that is the magnitude of the emitters movement multiplied by velocityFromMovement.
Default value is 0.
\qmlsignal QtQuick.Particles::Emitter::emitParticles(Array particles)
This signal is emitted when particles are emitted. particles is a JavaScript array of Particle objects. You can modify particle attributes directly within the handler.
\qmlmethod QtQuick.Particles::Emitter::burst(int count)
Emits a number of particles, specified by count, from this emitter immediately.
\qmlmethod QtQuick.Particles::Emitter::burst(int count, int x, int y)
Emits a number of particles, specified by count, from this emitter immediately. The particles are emitted as if the Emitter was positioned at ({x}, {y}) but all other properties are the same.
\qmlmethod QtQuick.Particles::Emitter::pulse(int duration)
If the emitter is not enabled, enables it for a specified duration (in milliseconds) and then switches it back off.
Definition at line 181 of file qquickparticleemitter.cpp.
References QObject::connect(), particleCountChanged(), particleDurationChanged(), particlesPerSecondChanged(), and SIGNAL.
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Definition at line 214 of file qquickparticleemitter.cpp.
References m_defaultExtruder.
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Definition at line 276 of file qquickparticleemitter_p.h.
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Definition at line 268 of file qquickparticleemitter.cpp.
References m_burstQueue, qMakePair(), QQuickItem::x, and QQuickItem::y.
Definition at line 273 of file qquickparticleemitter.cpp.
References m_burstQueue, and qMakePair().
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\reimp Derived classes should call the base class method before adding their own actions to perform at componentComplete.
Reimplemented from QQuickItem.
Definition at line 235 of file qquickparticleemitter.cpp.
References QQuickItem::componentComplete(), QQuickParticleSystem::finishRegisteringParticleEmitter(), m_system, QQuickItem::parentItem(), and setSystem().
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Definition at line 253 of file qquickparticleemitter.cpp.
References m_defaultExtruder, and m_extruder.
Referenced by emitWindow(), and QQuickTrailEmitter::emitWindow().
Referenced by emitWindow(), QQuickTrailEmitter::emitWindow(), and isEmitConnected().
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Reimplemented in QQuickTrailEmitter.
Definition at line 312 of file qquickparticleemitter.cpp.
References QQuickParticleData::ax, QQuickParticleData::ay, QRandomGenerator::bounded(), d, effectiveExtruder(), emit, QQuickParticleSystem::emitParticle(), emitParticles(), endSize, QQuickParticleData::endSize, QQuickParticleExtruder::extrude(), QList< T >::first(), QRandomGenerator::global(), QQuickParticleSystem::groupIds, QJSEngine::handle(), QQuickItem::height, i, isEmitConnected(), QList< T >::isEmpty(), QQuickParticleData::lifeSpan, m_acceleration, m_burstQueue, m_emitCap, m_enabled, m_last_emission, m_last_emitter, m_last_last_emitter, m_last_timestamp, m_overwrite, m_particleDuration, m_particleDurationVariation, m_particleEndSize, m_particleSize, m_particleSizeVariation, m_particlesPerSecond, m_pulseLeft, m_reset_last, m_startTime, m_system, m_velocity, m_velocity_from_movement, QQuickParticleSystem::maxLife, QV4::ExecutionEngine::newArrayObject(), QQuickParticleSystem::newDatum(), opt, particleCount(), QList< T >::pop_front(), qMax(), qmlEngine(), QQuickDirection::sample(), QJSValuePrivate::setValue(), QList< T >::size(), size, QQuickParticleData::size, sizeVariation, QQuickParticleData::t, time, velocity, QQuickParticleData::vx, QQuickParticleData::vy, QQuickItem::width, QPointF::x(), QQuickParticleData::x, QQuickItem::x, QPointF::y(), QQuickParticleData::y, and QQuickItem::y.
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Definition at line 63 of file qquickparticleemitter_p.h.
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Definition at line 251 of file qquickparticleemitter_p.h.
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Definition at line 83 of file qquickparticleemitter_p.h.
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Definition at line 88 of file qquickparticleemitter_p.h.
Referenced by QQuickTrailEmitter::emitWindow().
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Definition at line 220 of file qquickparticleemitter.cpp.
References emitParticles(), and IS_SIGNAL_CONNECTED.
Referenced by emitWindow(), and QQuickTrailEmitter::emitWindow().
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Definition at line 281 of file qquickparticleemitter_p.h.
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Definition at line 244 of file qquickparticleemitter_p.h.
Referenced by emitWindow().
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Referenced by QQuickParticleEmitter(), and setMaxParticleCount().
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Definition at line 73 of file qquickparticleemitter_p.h.
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Referenced by QQuickParticleEmitter(), QQuickTrailEmitter::QQuickTrailEmitter(), and setMaxParticleCount().
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Definition at line 95 of file qquickparticleemitter_p.h.
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Definition at line 261 of file qquickparticleemitter_p.h.
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Definition at line 256 of file qquickparticleemitter_p.h.
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Definition at line 266 of file qquickparticleemitter_p.h.
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Definition at line 68 of file qquickparticleemitter_p.h.
Referenced by QQuickParticleEmitter(), and setMaxParticleCount().
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Definition at line 262 of file qquickparticleemitter.cpp.
References m_enabled, and m_pulseLeft.
void QQuickParticleEmitter::reclaculateGroupId | ( | ) | const |
Definition at line 225 of file qquickparticleemitter.cpp.
References group, QQuickParticleSystem::groupIds, QQuickParticleGroupData::InvalidID, m_system, and QHash< Key, T >::value().
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Reimplemented in QQuickTrailEmitter.
Definition at line 307 of file qquickparticleemitter.cpp.
References m_reset_last.
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inlineslot |
Definition at line 224 of file qquickparticleemitter_p.h.
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slot |
Definition at line 244 of file qquickparticleemitter.cpp.
References arg, emit, enabledChanged(), and m_enabled.
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Definition at line 184 of file qquickparticleemitter_p.h.
Definition at line 168 of file qquickparticleemitter_p.h.
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Definition at line 278 of file qquickparticleemitter.cpp.
References arg, QObject::connect(), disconnect(), emit, m_maxParticleCount, m_overwrite, maximumEmittedChanged(), particleCountChanged(), particleDurationChanged(), particlesPerSecondChanged(), and SIGNAL.
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Definition at line 149 of file qquickparticleemitter_p.h.
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Definition at line 177 of file qquickparticleemitter_p.h.
Definition at line 200 of file qquickparticleemitter_p.h.
Definition at line 192 of file qquickparticleemitter_p.h.
Definition at line 208 of file qquickparticleemitter_p.h.
Definition at line 141 of file qquickparticleemitter_p.h.
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Definition at line 234 of file qquickparticleemitter_p.h.
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inlineslot |
Definition at line 157 of file qquickparticleemitter_p.h.
Referenced by componentComplete(), and QQuickParticleSystem::stateRedirect().
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Definition at line 216 of file qquickparticleemitter_p.h.
Definition at line 299 of file qquickparticleemitter.cpp.
References emit, m_velocity_from_movement, and velocityFromMovementChanged().
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Definition at line 286 of file qquickparticleemitter_p.h.
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Definition at line 78 of file qquickparticleemitter_p.h.
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Definition at line 271 of file qquickparticleemitter_p.h.
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Definition at line 100 of file qquickparticleemitter_p.h.
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Definition at line 303 of file qquickparticleemitter_p.h.
Referenced by emitWindow(), and QQuickTrailEmitter::emitWindow().
Definition at line 312 of file qquickparticleemitter_p.h.
Referenced by burst(), burst(), emitWindow(), and QQuickTrailEmitter::emitWindow().
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Definition at line 300 of file qquickparticleemitter_p.h.
Referenced by ~QQuickParticleEmitter(), and effectiveExtruder().
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Definition at line 318 of file qquickparticleemitter_p.h.
Referenced by emitWindow().
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Definition at line 297 of file qquickparticleemitter_p.h.
Referenced by emitWindow(), QQuickTrailEmitter::emitWindow(), pulse(), and setEnabled().
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Definition at line 299 of file qquickparticleemitter_p.h.
Referenced by effectiveExtruder().
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Definition at line 321 of file qquickparticleemitter_p.h.
Referenced by emitWindow().
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Definition at line 323 of file qquickparticleemitter_p.h.
Referenced by emitWindow().
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Definition at line 324 of file qquickparticleemitter_p.h.
Referenced by emitWindow().
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Definition at line 320 of file qquickparticleemitter_p.h.
Referenced by emitWindow().
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Definition at line 313 of file qquickparticleemitter_p.h.
Referenced by setMaxParticleCount().
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Definition at line 309 of file qquickparticleemitter_p.h.
Referenced by emitWindow(), QQuickTrailEmitter::emitWindow(), and setMaxParticleCount().
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Definition at line 295 of file qquickparticleemitter_p.h.
Referenced by emitWindow(), and QQuickTrailEmitter::emitWindow().
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Definition at line 296 of file qquickparticleemitter_p.h.
Referenced by emitWindow(), and QQuickTrailEmitter::emitWindow().
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Definition at line 305 of file qquickparticleemitter_p.h.
Referenced by emitWindow(), and QQuickTrailEmitter::emitWindow().
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Definition at line 304 of file qquickparticleemitter_p.h.
Referenced by emitWindow(), and QQuickTrailEmitter::emitWindow().
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Definition at line 306 of file qquickparticleemitter_p.h.
Referenced by emitWindow(), and QQuickTrailEmitter::emitWindow().
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Definition at line 294 of file qquickparticleemitter_p.h.
Referenced by emitWindow(), and QQuickTrailEmitter::emitWindow().
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Definition at line 311 of file qquickparticleemitter_p.h.
Referenced by emitWindow(), QQuickTrailEmitter::emitWindow(), and pulse().
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Definition at line 319 of file qquickparticleemitter_p.h.
Referenced by emitWindow(), and reset().
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Definition at line 308 of file qquickparticleemitter_p.h.
Referenced by emitWindow().
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Definition at line 298 of file qquickparticleemitter_p.h.
Referenced by componentComplete(), emitWindow(), QQuickTrailEmitter::emitWindow(), and reclaculateGroupId().
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Definition at line 302 of file qquickparticleemitter_p.h.
Referenced by emitWindow(), and QQuickTrailEmitter::emitWindow().
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Definition at line 316 of file qquickparticleemitter_p.h.
Referenced by emitWindow(), QQuickTrailEmitter::emitWindow(), and setVelocityFromMovement().
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Definition at line 336 of file qquickparticleemitter_p.h.
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Definition at line 336 of file qquickparticleemitter_p.h.
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Definition at line 336 of file qquickparticleemitter_p.h.
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Definition at line 336 of file qquickparticleemitter_p.h.
Referenced by emitWindow(), and QQuickTrailEmitter::emitWindow().
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Definition at line 336 of file qquickparticleemitter_p.h.
Referenced by reclaculateGroupId().
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Definition at line 336 of file qquickparticleemitter_p.h.
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Definition at line 336 of file qquickparticleemitter_p.h.
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Definition at line 336 of file qquickparticleemitter_p.h.
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Definition at line 336 of file qquickparticleemitter_p.h.
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Definition at line 336 of file qquickparticleemitter_p.h.
Referenced by emitWindow().
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Definition at line 336 of file qquickparticleemitter_p.h.
Referenced by emitWindow(), and QQuickTrailEmitter::emitWindow().
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Definition at line 336 of file qquickparticleemitter_p.h.
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Definition at line 336 of file qquickparticleemitter_p.h.
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Definition at line 336 of file qquickparticleemitter_p.h.
Referenced by emitWindow(), and QQuickTrailEmitter::emitWindow().
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Definition at line 336 of file qquickparticleemitter_p.h.