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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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QQuickAnimator Class Referenceabstract

#include <qquickanimator_p.h>

+ Inheritance diagram for QQuickAnimator:
+ Collaboration diagram for QQuickAnimator:

Signals

void targetItemChanged (QQuickItem *)
 
void durationChanged (int duration)
 
void easingChanged (const QEasingCurve &curve)
 
void toChanged (qreal to)
 
void fromChanged (qreal from)
 
- Signals inherited from QQuickAbstractAnimation
void started ()
 
void stopped ()
 
void runningChanged (bool)
 
void pausedChanged (bool)
 
void alwaysRunToEndChanged (bool)
 
void loopCountChanged (int)
 
 Q_REVISION (2, 12) void finished()
 
- 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

QQuickItemtargetItem () const
 
void setTargetItem (QQuickItem *target)
 \qmlproperty QtQuick::Item QtQuick::Animator::target
 
int duration () const
 
void setDuration (int duration)
 \qmlproperty int QtQuick::Animator::duration This property holds the duration of the animation in milliseconds.
 
QEasingCurve easing () const
 
void setEasing (const QEasingCurve &easing)
 \qmlpropertygroup QtQuick::Animator::easing \qmlproperty enumeration QtQuick::Animator::easing.type \qmlproperty real QtQuick::Animator::easing.amplitude \qmlproperty real QtQuick::Animator::easing.overshoot \qmlproperty real QtQuick::Animator::easing.period \qmlproperty list<real> QtQuick::Animator::easing.bezierCurve
 
qreal to () const
 
void setTo (qreal to)
 \qmlproperty real QtQuick::Animator::to This property holds the end value for the animation.
 
qreal from () const
 
void setFrom (qreal from)
 \qmlproperty real QtQuick::Animator::from This property holds the starting value for the animation.
 
- Public Member Functions inherited from QQuickAbstractAnimation
 QQuickAbstractAnimation (QObject *parent=nullptr)
 \qmltype Animation \instantiates QQuickAbstractAnimation \inqmlmodule QtQuick
 
 ~QQuickAbstractAnimation () override
 
bool isRunning () const
 \qmlproperty bool QtQuick::Animation::running This property holds whether the animation is currently running.
 
void setRunning (bool)
 \qmlsignal QtQuick::Animation::started()
 
bool isPaused () const
 \qmlproperty bool QtQuick::Animation::paused This property holds whether the animation is currently paused.
 
void setPaused (bool)
 
bool alwaysRunToEnd () const
 \qmlproperty bool QtQuick::Animation::alwaysRunToEnd This property holds whether the animation should run to completion when it is stopped.
 
void setAlwaysRunToEnd (bool)
 
int loops () const
 \qmlproperty int QtQuick::Animation::loops This property holds the number of times the animation should play.
 
void setLoops (int)
 
int duration () const
 
int currentTime ()
 
void setCurrentTime (int)
 
QQuickAnimationGroupgroup () const
 
void setGroup (QQuickAnimationGroup *, int index=-1)
 
void setDefaultTarget (const QQmlProperty &)
 
void setDisableUserControl ()
 
void setEnableUserControl ()
 
bool userControlDisabled () const
 
void classBegin () override
 Invoked after class creation, but before any properties have been set.
 
void componentComplete () override
 Invoked after the root component that caused this instantiation has completed construction.
 
QAbstractAnimationJobqtAnimation ()
 
- 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 QQmlPropertyValueSource
 QQmlPropertyValueSource ()
 Constructs a QQmlPropertyValueSource.
 
virtual ~QQmlPropertyValueSource ()
 Destroys the value source.
 
- Public Member Functions inherited from QQmlParserStatus
 QQmlParserStatus ()
 
virtual ~QQmlParserStatus ()
 

Protected Member Functions

ThreadingModel threadingModel () const override
 
virtual QQuickAnimatorJobcreateJob () const =0
 
virtual QString propertyName () const =0
 
QAbstractAnimationJobtransition (QQuickStateActions &actions, QQmlProperties &modified, TransitionDirection, QObject *) override
 
 QQuickAnimator (QQuickAnimatorPrivate &dd, QObject *parent=nullptr)
 \qmltype Animator \instantiates QQuickAnimator \inqmlmodule QtQuick
 
 QQuickAnimator (QObject *parent=nullptr)
 
- Protected Member Functions inherited from QQuickAbstractAnimation
 QQuickAbstractAnimation (QQuickAbstractAnimationPrivate &dd, QObject *parent)
 
QAbstractAnimationJobinitInstance (QAbstractAnimationJob *animation)
 
- 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

QQuickItemtarget
 
QEasingCurve easing
 
int duration
 
qreal to
 
qreal from
 
- Properties inherited from QQuickAbstractAnimation
bool running
 
bool paused
 
bool alwaysRunToEnd
 
int loops
 
- Properties inherited from QObject
QString objectName
 the name of this object
 

Additional Inherited Members

- Public Types inherited from QQuickAbstractAnimation
enum  ThreadingModel { GuiThread , RenderThread , AnyThread }
 
enum  Loops { Infinite = -2 }
 
enum  TransitionDirection { Forward , Backward }
 
- Public Slots inherited from QQuickAbstractAnimation
void restart ()
 \qmlmethod QtQuick::Animation::restart()
 
void start ()
 \qmlmethod QtQuick::Animation::start()
 
void pause ()
 \qmlmethod QtQuick::Animation::pause()
 
void resume ()
 \qmlmethod QtQuick::Animation::resume()
 
void stop ()
 \qmlmethod QtQuick::Animation::stop()
 
void complete ()
 \qmlmethod QtQuick::Animation::complete()
 
- Public Slots inherited from QObject
void deleteLater ()
 \threadsafe
 
- Static Public Member Functions inherited from QObject
static QMetaObject::Connection connect (const QObject *sender, const char *signal, const QObject *receiver, const char *member, Qt::ConnectionType=Qt::AutoConnection)
 \threadsafe
 
static QMetaObject::Connection connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)
 
template<typename Func1 , typename Func2 >
static QMetaObject::Connection connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::ContextTypeForFunctor< Func2 >::ContextType *context, Func2 &&slot, Qt::ConnectionType type=Qt::AutoConnection)
 
template<typename Func1 , typename Func2 >
static QMetaObject::Connection connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 &&slot)
 
static bool disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member)
 \threadsafe
 
static bool disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member)
 
static bool disconnect (const QMetaObject::Connection &)
 Disconnect a connection.
 
template<typename Func1 , typename Func2 >
static bool disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object *receiver, Func2 slot)
 
template<typename Func1 >
static bool disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, const QObject *receiver, void **zero)
 
- Protected Attributes inherited from QObject
QScopedPointer< QObjectDatad_ptr
 

Detailed Description

Definition at line 26 of file qquickanimator_p.h.

Constructor & Destructor Documentation

◆ QQuickAnimator() [1/2]

QT_BEGIN_NAMESPACE QQuickAnimator::QQuickAnimator ( QQuickAnimatorPrivate & dd,
QObject * parent = nullptr )
protected

\qmltype Animator \instantiates QQuickAnimator \inqmlmodule QtQuick

Since
5.2

\inherits Animation

Is the base of all QML animators.

Animator types are a special type of animation which operate directly on Qt Quick's scene graph, rather than the QML objects and their properties like regular Animation types do. This has the benefit that Animator based animations can animate on the \l {Threaded Render Loop ('threaded')}{scene graph's rendering thread} even when the UI thread is blocked.

The value of the QML property will be updated after the animation has finished. The property is not updated while the animation is running.

The Animator types can be used just like any other Animation type.

Rectangle {
id: mixBox
width: 50
height: 50
ParallelAnimation {
ColorAnimation {
target: mixBox
property: "color"
from: "forestgreen"
to: "lightsteelblue";
duration: 1000
}
ScaleAnimator {
target: mixBox
from: 2
to: 1
duration: 1000
}
running: true
}
}

If all sub-animations of ParallelAnimation and SequentialAnimation are Animator types, the ParallelAnimation and SequentialAnimation will also be treated as an Animator and be run on the scene graph's rendering thread when possible.

The Animator types can be used for animations during transitions, but they do not support the \l {Transition::reversible}{reversible} property.

The Animator type cannot be used directly in a QML file. It exists to provide a set of common properties and methods, available across all the other animator types that inherit from it. Attempting to use the Animator type directly will result in an error.

Definition at line 49 of file qquickanimator.cpp.

◆ QQuickAnimator() [2/2]

QQuickAnimator::QQuickAnimator ( QObject * parent = nullptr)
protected

Definition at line 54 of file qquickanimator.cpp.

Member Function Documentation

◆ createJob()

virtual QQuickAnimatorJob * QQuickAnimator::createJob ( ) const
protectedpure virtual

Implemented in QQuickScaleAnimator, QQuickXAnimator, QQuickYAnimator, QQuickOpacityAnimator, and QQuickRotationAnimator.

Referenced by transition().

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◆ duration()

int QQuickAnimator::duration ( ) const

Definition at line 97 of file qquickanimator.cpp.

References d.

◆ durationChanged

void QQuickAnimator::durationChanged ( int duration)
signal

Referenced by setDuration().

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◆ easing()

QEasingCurve QQuickAnimator::easing ( ) const

Definition at line 122 of file qquickanimator.cpp.

References d.

◆ easingChanged

void QQuickAnimator::easingChanged ( const QEasingCurve & curve)
signal

Referenced by setEasing().

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◆ from()

qreal QQuickAnimator::from ( ) const

Definition at line 176 of file qquickanimator.cpp.

References d.

◆ fromChanged

void QQuickAnimator::fromChanged ( qreal from)
signal

Referenced by setFrom().

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◆ propertyName()

virtual QString QQuickAnimator::propertyName ( ) const
protectedpure virtual

Implemented in QQuickScaleAnimator, QQuickXAnimator, QQuickYAnimator, QQuickOpacityAnimator, and QQuickRotationAnimator.

Referenced by transition().

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◆ setDuration()

void QQuickAnimator::setDuration ( int duration)

\qmlproperty int QtQuick::Animator::duration This property holds the duration of the animation in milliseconds.

The default value is 250.

Definition at line 88 of file qquickanimator.cpp.

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

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◆ setEasing()

void QQuickAnimator::setEasing ( const QEasingCurve & easing)

\qmlpropertygroup QtQuick::Animator::easing \qmlproperty enumeration QtQuick::Animator::easing.type \qmlproperty real QtQuick::Animator::easing.amplitude \qmlproperty real QtQuick::Animator::easing.overshoot \qmlproperty real QtQuick::Animator::easing.period \qmlproperty list<real> QtQuick::Animator::easing.bezierCurve

propertyanimation.easing

Definition at line 113 of file qquickanimator.cpp.

References d, easing, easingChanged(), and Q_EMIT.

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◆ setFrom()

void QQuickAnimator::setFrom ( qreal from)

\qmlproperty real QtQuick::Animator::from This property holds the starting value for the animation.

If the Animator is defined within a \l Transition or \l Behavior, this value defaults to the value defined in the starting state of the \l Transition, or the current value of the property at the moment the \l Behavior is triggered.

See also
{Animation and Transitions in Qt Quick}

Definition at line 166 of file qquickanimator.cpp.

References d, from, fromChanged(), and Q_EMIT.

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◆ setTargetItem()

void QQuickAnimator::setTargetItem ( QQuickItem * target)

\qmlproperty QtQuick::Item QtQuick::Animator::target

This property holds the target item of the animator.

Note
Animator targets must be Item based types.

Definition at line 67 of file qquickanimator.cpp.

References d, Q_EMIT, target, and targetItemChanged().

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◆ setTo()

void QQuickAnimator::setTo ( qreal to)

\qmlproperty real QtQuick::Animator::to This property holds the end value for the animation.

If the Animator is defined within a \l Transition or \l Behavior, this value defaults to the value defined in the end state of the \l Transition, or the value of the property change that triggered the \l Behavior.

Definition at line 138 of file qquickanimator.cpp.

References d, Q_EMIT, to, and toChanged().

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◆ targetItem()

QQuickItem * QQuickAnimator::targetItem ( ) const

Definition at line 76 of file qquickanimator.cpp.

References d.

◆ targetItemChanged

void QQuickAnimator::targetItemChanged ( QQuickItem * )
signal

Referenced by setTargetItem().

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◆ threadingModel()

ThreadingModel QQuickAnimator::threadingModel ( ) const
inlineoverrideprotectedvirtual

Reimplemented from QQuickAbstractAnimation.

Definition at line 57 of file qquickanimator_p.h.

◆ to()

qreal QQuickAnimator::to ( ) const

Definition at line 148 of file qquickanimator.cpp.

References d.

◆ toChanged

void QQuickAnimator::toChanged ( qreal to)
signal

Referenced by setTo().

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◆ transition()

QAbstractAnimationJob * QQuickAnimator::transition ( QQuickStateActions & actions,
QQmlProperties & modified,
TransitionDirection direction,
QObject * defaultTarget )
overrideprotectedvirtual

Reimplemented from QQuickAbstractAnimation.

Definition at line 242 of file qquickanimator.cpp.

References QQuickAbstractAnimation::Backward, createJob(), d, direction, propertyName(), qmlWarning(), and QQuickAnimatorJob::target().

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Property Documentation

◆ duration

int QQuickAnimator::duration
readwrite

Definition at line 32 of file qquickanimator_p.h.

Referenced by setDuration().

◆ easing

QEasingCurve QQuickAnimator::easing
readwrite

Definition at line 31 of file qquickanimator_p.h.

Referenced by setEasing().

◆ from

qreal QQuickAnimator::from
readwrite

Definition at line 34 of file qquickanimator_p.h.

Referenced by setFrom().

◆ target

QQuickItem * QQuickAnimator::target
readwrite

Definition at line 30 of file qquickanimator_p.h.

Referenced by setTargetItem().

◆ to

qreal QQuickAnimator::to
readwrite

Definition at line 33 of file qquickanimator_p.h.

Referenced by setTo().


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