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Internal/Contributor docs for the Qt SDK. <b>Note:</b> These are NOT official API docs; those are found <a href='https://doc.qt.io/'>here</a>.
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QQuick3DParticleEmitBurst Class Reference

#include <qquick3dparticleemitburst_p.h>

+ Inheritance diagram for QQuick3DParticleEmitBurst:
+ Collaboration diagram for QQuick3DParticleEmitBurst:

Public Slots

void setTime (int time)
 
void setAmount (int amount)
 
void setDuration (int duration)
 
- Public Slots inherited from QObject
void deleteLater ()
 \threadsafe
 

Signals

void timeChanged ()
 
void amountChanged ()
 
void durationChanged ()
 
- 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

 QQuick3DParticleEmitBurst (QObject *parent=nullptr)
 \qmltype EmitBurst3D \inherits QtObject \inqmlmodule QtQuick3D.Particles3D
 
 ~QQuick3DParticleEmitBurst () override
 
int time () const
 \qmlproperty int EmitBurst3D::time
 
int amount () const
 \qmlproperty int EmitBurst3D::amount
 
int duration () const
 \qmlproperty int EmitBurst3D::duration
 
- 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 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< QStringbindableObjectName ()
 
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).
 
QThreadthread () 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 >
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 >
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 QObjectListchildren () 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< QByteArraydynamicPropertyNames () const
 
QBindingStoragebindingStorage ()
 
const QBindingStoragebindingStorage () const
 
QObjectparent () const
 Returns a pointer to the parent object.
 
bool inherits (const char *classname) const
 Returns true if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false.
 
- Public Member Functions inherited from QQmlParserStatus
 QQmlParserStatus ()
 
virtual ~QQmlParserStatus ()
 

Protected Member Functions

void componentComplete () override
 Invoked after the root component that caused this instantiation has completed construction.
 
void classBegin () override
 Invoked after class creation, but before any properties have been set.
 
- Protected Member Functions inherited from QObject
QObjectsender () const
 Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns \nullptr.
 
int senderSignalIndex () const
 
int receivers (const char *signal) const
 Returns the number of receivers connected to the signal.
 
bool isSignalConnected (const QMetaMethod &signal) const
 
virtual void timerEvent (QTimerEvent *event)
 This event handler can be reimplemented in a subclass to receive timer events for the object.
 
virtual void childEvent (QChildEvent *event)
 This event handler can be reimplemented in a subclass to receive child events.
 
virtual void customEvent (QEvent *event)
 This event handler can be reimplemented in a subclass to receive custom events.
 
virtual void connectNotify (const QMetaMethod &signal)
 
virtual void disconnectNotify (const QMetaMethod &signal)
 
 QObject (QObjectPrivate &dd, QObject *parent=nullptr)
 

Properties

int time
 
int amount
 
int duration
 
- Properties inherited from QObject
QString objectName
 the name of this object
 

Friends

class QQuick3DParticleEmitter
 

Additional Inherited Members

- 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)
 
- Protected Attributes inherited from QObject
QScopedPointer< QObjectDatad_ptr
 

Detailed Description

Definition at line 28 of file qquick3dparticleemitburst_p.h.

Constructor & Destructor Documentation

◆ QQuick3DParticleEmitBurst()

QT_BEGIN_NAMESPACE QQuick3DParticleEmitBurst::QQuick3DParticleEmitBurst ( QObject * parent = nullptr)

\qmltype EmitBurst3D \inherits QtObject \inqmlmodule QtQuick3D.Particles3D

Declarative emitter bursts.

Since
6.2

This element defines particle bursts in the \l ParticleEmitter3D. These bursts are static, meaning that they are evaluated when the particlesystem starts. This allows better performance than \l DynamicBurst3D and bursting outside of the particlesystem time (so e.g. burst at 1000ms while system time starts from 2000ms).

Note
EmitBurst3D uses emitter properties (position, rotation etc.) at the particlesystem start. For dynamic emitters, use \l DynamicBurst3D instead.

For example, to emit 100 particles at the beginning, and 50 particles at 2 seconds, so that both bursts take 200 milliseconds:

\qml ParticleEmitter3D { ... emitBursts: [ EmitBurst3D { time: 0 amount: 100 duration: 200 }, EmitBurst3D { time: 2000 amount: 50 duration: 200 } ] } \endqml

Definition at line 46 of file qquick3dparticleemitburst.cpp.

References QObject::parent().

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◆ ~QQuick3DParticleEmitBurst()

QQuick3DParticleEmitBurst::~QQuick3DParticleEmitBurst ( )
override

Definition at line 52 of file qquick3dparticleemitburst.cpp.

References QQuick3DParticleEmitter::unRegisterEmitBurst().

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Member Function Documentation

◆ amount()

int QQuick3DParticleEmitBurst::amount ( ) const

\qmlproperty int EmitBurst3D::amount

This property defines the amount of particles emitted during the burst.

The default value is 0.

Definition at line 77 of file qquick3dparticleemitburst.cpp.

◆ amountChanged

void QQuick3DParticleEmitBurst::amountChanged ( )
signal

Referenced by setAmount().

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◆ classBegin()

void QQuick3DParticleEmitBurst::classBegin ( )
inlineoverrideprotectedvirtual

Invoked after class creation, but before any properties have been set.

Implements QQmlParserStatus.

Definition at line 60 of file qquick3dparticleemitburst_p.h.

◆ componentComplete()

void QQuick3DParticleEmitBurst::componentComplete ( )
overrideprotectedvirtual

Invoked after the root component that caused this instantiation has completed construction.

At this point all static values and binding values have been assigned to the class.

Implements QQmlParserStatus.

Definition at line 139 of file qquick3dparticleemitburst.cpp.

References QObject::parent(), qWarning, and QQuick3DParticleEmitter::registerEmitBurst().

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◆ duration()

int QQuick3DParticleEmitBurst::duration ( ) const

\qmlproperty int EmitBurst3D::duration

This property defines the duration of the burst. The default value is 0, meaning all particles will burst at the beginning of \l time. If the duration is set, particles emitting is distributed between time and time + duration.

For example, to have emit rate of 400 between 1000 and 1200 milliseconds: \qml EmitBurst3D { time: 1000 amount: 80 duration: 1200 } \endqml

The default value is 0.

Definition at line 101 of file qquick3dparticleemitburst.cpp.

◆ durationChanged

void QQuick3DParticleEmitBurst::durationChanged ( )
signal

Referenced by setDuration().

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◆ setAmount

void QQuick3DParticleEmitBurst::setAmount ( int amount)
slot

Definition at line 115 of file qquick3dparticleemitburst.cpp.

References amount, amountChanged(), Q_EMIT, and qWarning.

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◆ setDuration

void QQuick3DParticleEmitBurst::setDuration ( int duration)
slot

Definition at line 127 of file qquick3dparticleemitburst.cpp.

References duration, durationChanged(), Q_EMIT, and qWarning.

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◆ setTime

void QQuick3DParticleEmitBurst::setTime ( int time)
slot

Definition at line 106 of file qquick3dparticleemitburst.cpp.

References Q_EMIT, time, and timeChanged().

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◆ time()

int QQuick3DParticleEmitBurst::time ( ) const

\qmlproperty int EmitBurst3D::time

This property defines the time in milliseconds when emitting the burst starts.

The default value is 0.

Definition at line 65 of file qquick3dparticleemitburst.cpp.

◆ timeChanged

void QQuick3DParticleEmitBurst::timeChanged ( )
signal

Referenced by setTime().

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Friends And Related Symbol Documentation

◆ QQuick3DParticleEmitter

friend class QQuick3DParticleEmitter
friend

Definition at line 63 of file qquick3dparticleemitburst_p.h.

Property Documentation

◆ amount

int QQuick3DParticleEmitBurst::amount
readwrite

◆ duration

int QQuick3DParticleEmitBurst::duration
readwrite

◆ time

int QQuick3DParticleEmitBurst::time
readwrite

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