QQuickTimeLine Class Reference

The QQuickTimeLine class provides a timeline for controlling animations. More...

#include <qquicktimeline_p_p.h>

Inheritance diagram for QQuickTimeLine:

Collaboration diagram for QQuickTimeLine:

Public Types
enum	SyncMode { LocalSync , GlobalSync }

Signals
void	updated ()
	Emitted each time the timeline modifies QQuickTimeLineValues.
void	completed ()
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
	QQuickTimeLine (QObject *parent=nullptr)
	Construct a new QQuickTimeLine with the specified parent.
	~QQuickTimeLine ()
	Destroys the time line.
SyncMode	syncMode () const
	Return the timeline's synchronization mode.
void	setSyncMode (SyncMode)
	Set the timeline's synchronization mode to syncMode.
void	pause (QQuickTimeLineObject &, int)
	Pause obj for time milliseconds.
void	callback (const QQuickTimeLineCallback &)
	Execute the event.
void	set (QQuickTimeLineValue &, qreal)
	Set the value of timeLineValue.
int	accel (QQuickTimeLineValue &, qreal velocity, qreal accel)
	Decelerate timeLineValue from the starting velocity to zero at the given acceleration rate.
int	accel (QQuickTimeLineValue &, qreal velocity, qreal accel, qreal maxDistance)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Decelerate timeLineValue from the starting velocity to zero at the given acceleration rate over a maximum distance of maxDistance.
int	accelDistance (QQuickTimeLineValue &, qreal velocity, qreal distance)
	Decelerate timeLineValue from the starting velocity to zero over the given distance.
void	move (QQuickTimeLineValue &, qreal destination, int time=500)
	Linearly change the timeLineValue from its current value to the given destination value over time milliseconds.
void	move (QQuickTimeLineValue &, qreal destination, const QEasingCurve &, int time=500)
	Change the timeLineValue from its current value to the given destination value over time milliseconds using the easing curve.
void	moveBy (QQuickTimeLineValue &, qreal change, int time=500)
	Linearly change the timeLineValue from its current value by the change amount over time milliseconds.
void	moveBy (QQuickTimeLineValue &, qreal change, const QEasingCurve &, int time=500)
	Change the timeLineValue from its current value by the change amount over time milliseconds using the easing curve.
void	sync ()
void	setSyncPoint (int)
int	syncPoint () const
void	sync (QQuickTimeLineValue &)
	Synchronize the end point of timeLineValue to the endpoint of the longest action cursrently scheduled in the timeline.
void	sync (QQuickTimeLineValue &, QQuickTimeLineValue &)
	Synchronize the end point of timeLineValue to the endpoint of syncTo within this timeline.
void	reset (QQuickTimeLineValue &)
	Cancel (but don't complete) all scheduled actions for timeLineValue.
void	complete ()
	Completes the timeline.
void	clear ()
	Resets the timeline.
bool	isActive () const
	Returns true if the timeline is active.
int	time () const
int	duration () const override
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< 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.

Protected Member Functions
void	updateCurrentTime (int) override
void	debugAnimation (QDebug d) const override
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)

Friends
class	QQuickTimeLineObject
struct	QQuickTimeLinePrivate

Additional Inherited Members
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< QObjectData >	d_ptr
Properties inherited from QObject
QString	objectName
	the name of this object
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

The QQuickTimeLine class provides a timeline for controlling animations.

QQuickTimeLine is similar to QTimeLine except: \list

• It updates QQuickTimeLineValue instances directly, rather than maintaining a single current value.

For example, the following animates a simple value over 200 milliseconds:

QQuickTimeLineValue v(<starting value>);
QQuickTimeLine tl;
tl.move(v, 100., 200);
tl.start()

If your program needs to know when values are changed, it can either connect to the QQuickTimeLine's updated() signal, or inherit from QQuickTimeLineValue and reimplement the QQuickTimeLineValue::setValue() method.

• Supports multiple QQuickTimeLineValue, arbitrary start and end values and allows animations to be strung together for more complex effects.

For example, the following animation moves the x and y coordinates of an object from wherever they are to the position (100, 100) in 50 milliseconds and then further animates them to (100, 200) in 50 milliseconds:

QQuickTimeLineValue x(<starting value>);
QQuickTimeLineValue y(<starting value>);
 
QQuickTimeLine tl;
tl.start();
 
tl.move(x, 100., 50);
tl.move(y, 100., 50);
tl.move(y, 200., 50);

• All QQuickTimeLine instances share a single, synchronized clock.

Actions scheduled within the same event loop tick are scheduled synchronously against each other, regardless of the wall time between the scheduling. Synchronized scheduling applies both to within the same QQuickTimeLine and across separate QQuickTimeLine's within the same process.

\endlist

Currently easing functions are not supported.

Definition at line 29 of file qquicktimeline_p_p.h.

Member Enumeration Documentation

SyncMode

enum QQuickTimeLine::SyncMode

Enumerator
LocalSync
GlobalSync

Definition at line 36 of file qquicktimeline_p_p.h.

Constructor & Destructor Documentation

QQuickTimeLine()

QQuickTimeLine::QQuickTimeLine

(

QObject *

parent = nullptr

)

Construct a new QQuickTimeLine with the specified parent.

Definition at line 283 of file qquicktimeline.cpp.

References QQuickTimeLinePrivate.

~QQuickTimeLine()

QQuickTimeLine::~QQuickTimeLine

(

)

Destroys the time line.

Any inprogress animations are canceled, but not completed.

Definition at line 293 of file qquicktimeline.cpp.

References QHash< Key, T >::begin(), QHash< Key, T >::end(), iter, and QQuickTimeLinePrivate::ops.

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Member Function Documentation

accel() [1/2]

int QQuickTimeLine::accel	(	QQuickTimeLineValue &	timeLineValue,
		qreal	velocity,
		qreal	acceleration )

Decelerate timeLineValue from the starting velocity to zero at the given acceleration rate.

Although the acceleration is technically a deceleration, it should always be positive. The QQuickTimeLine will ensure that the deceleration is in the opposite direction to the initial velocity.

Definition at line 357 of file qquicktimeline.cpp.

References QQuickTimeLinePrivate::Op::Accel, QQuickTimeLinePrivate::add(), QQuickTimeLinePrivate::order, qFuzzyIsNull(), qt_is_nan(), and time().

Referenced by QQuickFlickablePrivate::flick(), QQuickGridViewPrivate::flick(), QQuickListViewPrivate::flick(), QQuickPathViewPrivate::handleMouseReleaseEvent(), and QQuickFlickablePrivate::viewportAxisMoved().

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accel() [2/2]

int QQuickTimeLine::accel	(	QQuickTimeLineValue &	timeLineValue,
		qreal	velocity,
		qreal	acceleration,
		qreal	maxDistance )

This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.Decelerate timeLineValue from the starting velocity to zero at the given acceleration rate over a maximum distance of maxDistance.

If necessary, QQuickTimeLine will reduce the acceleration to ensure that the entire operation does not require a move of more than maxDistance. maxDistance should always be positive.

Definition at line 384 of file qquicktimeline.cpp.

References QQuickTimeLinePrivate::Op::Accel, QQuickTimeLinePrivate::add(), QQuickTimeLinePrivate::order, Q_ASSERT, qFuzzyIsNull(), qt_is_nan(), and time().

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accelDistance()

int QQuickTimeLine::accelDistance	(	QQuickTimeLineValue &	timeLineValue,
		qreal	velocity,
		qreal	distance )

Decelerate timeLineValue from the starting velocity to zero over the given distance.

This is like accel(), but the QQuickTimeLine calculates the exact deceleration to use.

distance should be positive.

Definition at line 414 of file qquicktimeline.cpp.

References QQuickTimeLinePrivate::Op::AccelDistance, QQuickTimeLinePrivate::add(), QQuickTimeLinePrivate::order, Q_ASSERT, qFuzzyIsNull(), qt_is_nan(), and time().

Referenced by QQuickListViewPrivate::flick().

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callback()

void QQuickTimeLine::callback

(

const QQuickTimeLineCallback &

callback

)

Execute the event.

Definition at line 336 of file qquicktimeline.cpp.

References QQuickTimeLinePrivate::add(), callback(), QQuickTimeLinePrivate::Op::Execute, and QQuickTimeLinePrivate::order.

Referenced by callback(), QQuickFlickablePrivate::flick(), QQuickGridViewPrivate::flick(), QQuickListViewPrivate::flick(), QQuickPathViewPrivate::handleMouseReleaseEvent(), and QQuickFlickablePrivate::viewportAxisMoved().

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clear()

void QQuickTimeLine::clear

(

)

Resets the timeline.

All queued actions are discarded and QQuickTimeLineValue's retain their current value. For example,

QQuickTimeLineValue v(0.);
QQuickTimeLine tl;
tl.move(v, 100., 1000.);
// 500 ms passes
// v.value() == 50.
tl.clear();
// v.value() == 50.

Definition at line 636 of file qquicktimeline.cpp.

References QHash< Key, T >::cbegin(), QHash< Key, T >::cend(), QHash< Key, T >::clear(), QHash< QQuickTimeLineObject *, TimeLine >::const_iterator, iter, QQuickTimeLinePrivate::length, QQuickTimeLinePrivate::ops, and QQuickTimeLinePrivate::syncPoint.

Referenced by QQuickPathViewPrivate::clear(), QQuickItemViewPrivate::clear(), QQuickFlickablePrivate::clearTimeline(), and QQuickPathViewPrivate::handleMousePressEvent().

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complete()

void QQuickTimeLine::complete

(

)

Completes the timeline.

All queued actions are played to completion, and then discarded. For example,

QQuickTimeLineValue v(0.);
QQuickTimeLine tl;
tl.move(v, 100., 1000.);
// 500 ms passes
// v.value() == 50.
tl.complete();
// v.value() == 100.

Definition at line 619 of file qquicktimeline.cpp.

References QQuickTimeLinePrivate::advance(), and QQuickTimeLinePrivate::length.

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completed

void QQuickTimeLine::completed ( )

signal

Referenced by QQuickListViewPrivate::fixup(), and updateCurrentTime().

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debugAnimation()

void QQuickTimeLine::debugAnimation ( QDebug d ) const

overrideprotectedvirtual

Reimplemented from QAbstractAnimationJob.

Definition at line 694 of file qquicktimeline.cpp.

References d, Qt::dec(), and Qt::hex().

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duration()

int QQuickTimeLine::duration ( ) const

overridevirtual

Reimplemented from QAbstractAnimationJob.

Definition at line 490 of file qquicktimeline.cpp.

Referenced by QQuickListViewPrivate::fixupHeader().

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isActive()

bool QQuickTimeLine::isActive

(

)

const

Returns true if the timeline is active.

An active timeline is one where QQuickTimeLineValue actions are still pending.

Definition at line 602 of file qquicktimeline.cpp.

References QHash< Key, T >::isEmpty(), and QQuickTimeLinePrivate::ops.

Referenced by QQuickPathViewPrivate::handleMousePressEvent(), QQuickPathViewPrivate::handleMouseReleaseEvent(), QQuickFlickablePrivate::handlePressEvent(), and QQuickFlickablePrivate::isViewMoving().

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move() [1/2]

void QQuickTimeLine::move	(	QQuickTimeLineValue &	timeLineValue,
		qreal	destination,
		const QEasingCurve &	easing,
		int	time = 500 )

Change the timeLineValue from its current value to the given destination value over time milliseconds using the easing curve.

Definition at line 445 of file qquicktimeline.cpp.

References QQuickTimeLinePrivate::add(), destination, easing, QQuickTimeLinePrivate::Op::Move, QQuickTimeLinePrivate::order, and time().

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move() [2/2]

void QQuickTimeLine::move	(	QQuickTimeLineValue &	timeLineValue,
		qreal	destination,
		int	time = 500 )

Linearly change the timeLineValue from its current value to the given destination value over time milliseconds.

Definition at line 434 of file qquicktimeline.cpp.

References QQuickTimeLinePrivate::add(), destination, QQuickTimeLinePrivate::Op::Move, QQuickTimeLinePrivate::order, and time().

Referenced by QQuickFlickablePrivate::adjustContentPos(), QQuickGridViewPrivate::fixup(), QQuickListViewPrivate::fixup(), QQuickPathViewPrivate::snapToIndex(), and QQuickPathViewPrivate::updateHighlight().

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moveBy() [1/2]

void QQuickTimeLine::moveBy	(	QQuickTimeLineValue &	timeLineValue,
		qreal	change,
		const QEasingCurve &	easing,
		int	time = 500 )

Change the timeLineValue from its current value by the change amount over time milliseconds using the easing curve.

Definition at line 467 of file qquicktimeline.cpp.

References QQuickTimeLinePrivate::add(), easing, QQuickTimeLinePrivate::Op::MoveBy, QQuickTimeLinePrivate::order, and time().

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moveBy() [2/2]

void QQuickTimeLine::moveBy	(	QQuickTimeLineValue &	timeLineValue,
		qreal	change,
		int	time = 500 )

Linearly change the timeLineValue from its current value by the change amount over time milliseconds.

Definition at line 456 of file qquicktimeline.cpp.

References QQuickTimeLinePrivate::add(), QQuickTimeLinePrivate::Op::MoveBy, QQuickTimeLinePrivate::order, and time().

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pause()

void QQuickTimeLine::pause	(	QQuickTimeLineObject &	obj,
		int	time )

Pause obj for time milliseconds.

Definition at line 326 of file qquicktimeline.cpp.

References QQuickTimeLinePrivate::add(), QQuickTimeLinePrivate::order, QQuickTimeLinePrivate::Op::Pause, and time().

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reset()

void QQuickTimeLine::reset

(

QQuickTimeLineValue &

timeLineValue

)

Cancel (but don't complete) all scheduled actions for timeLineValue.

Definition at line 477 of file qquicktimeline.cpp.

References qCDebug, and qWarning.

Referenced by QQuickGridViewPrivate::fixup(), QQuickListViewPrivate::fixup(), QQuickGridViewPrivate::flick(), QQuickListViewPrivate::flick(), QQuickFlickablePrivate::handleReleaseEvent(), QQuickFlickablePrivate::resetTimeline(), QQuickPathViewPrivate::snapToIndex(), QQuickPathViewPrivate::updateHighlight(), and QQuickFlickablePrivate::viewportAxisMoved().

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set()

void QQuickTimeLine::set	(	QQuickTimeLineValue &	timeLineValue,
		qreal	value )

Set the value of timeLineValue.

Definition at line 345 of file qquicktimeline.cpp.

References QQuickTimeLinePrivate::add(), QQuickTimeLinePrivate::order, and QQuickTimeLinePrivate::Op::Set.

Referenced by QQuickFlickablePrivate::adjustContentPos(), QQuickFlickablePrivate::fixup(), QQuickGridViewPrivate::fixup(), QQuickListViewPrivate::fixup(), QQuickPathViewPrivate::snapToIndex(), QQuickPathViewPrivate::updateHighlight(), and QQuickFlickablePrivate::viewportAxisMoved().

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setSyncMode()

void QQuickTimeLine::setSyncMode

(

SyncMode

syncMode

)

Set the timeline's synchronization mode to syncMode.

Definition at line 318 of file qquicktimeline.cpp.

References QQuickTimeLinePrivate::syncMode, and syncMode().

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setSyncPoint()

void QQuickTimeLine::setSyncPoint

(

int

sp

)

Temporary hack.

Definition at line 583 of file qquicktimeline.cpp.

References sp, and QQuickTimeLinePrivate::syncPoint.

sync() [1/3]

void QQuickTimeLine::sync

(

)

sync() [2/3]

void QQuickTimeLine::sync

(

QQuickTimeLineValue &

timeLineValue

)

Synchronize the end point of timeLineValue to the endpoint of the longest action cursrently scheduled in the timeline.

In pseudo-code, this is equivalent to:

QQuickTimeLine::pause(timeLineValue, length_of(timeline) - length_of(timeLineValue))

Definition at line 531 of file qquicktimeline.cpp.

References QHash< Key, T >::end(), QHash< Key, T >::find(), iter, QQuickTimeLinePrivate::length, QQuickTimeLinePrivate::ops, and QAbstractAnimationJob::pause().

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sync() [3/3]

void QQuickTimeLine::sync	(	QQuickTimeLineValue &	timeLineValue,
		QQuickTimeLineValue &	syncTo )

Synchronize the end point of timeLineValue to the endpoint of syncTo within this timeline.

Following operations on timeLineValue in this timeline will be scheduled after all the currently scheduled actions on syncTo are complete. In pseudo-code this is equivalent to:

QQuickTimeLine::pause(timeLineValue, min(0, length_of(syncTo) - length_of(timeLineValue)))

Definition at line 506 of file qquicktimeline.cpp.

References QHash< Key, T >::end(), QHash< Key, T >::find(), iter, QQuickTimeLinePrivate::ops, and QAbstractAnimationJob::pause().

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syncMode()

QQuickTimeLine::SyncMode QQuickTimeLine::syncMode

(

)

const

Return the timeline's synchronization mode.

Definition at line 310 of file qquicktimeline.cpp.

References QQuickTimeLinePrivate::syncMode.

Referenced by setSyncMode().

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syncPoint()

int QQuickTimeLine::syncPoint

(

)

const

Temporary hack.

Definition at line 593 of file qquicktimeline.cpp.

References QQuickTimeLinePrivate::syncPoint.

time()

int QQuickTimeLine::time

(

)

const

Definition at line 646 of file qquicktimeline.cpp.

References QQuickTimeLinePrivate::prevTime.

Referenced by accel(), accel(), accelDistance(), QQuickFlickablePrivate::fixup(), QQuickGridViewPrivate::fixup(), QQuickListViewPrivate::fixup(), QQuickListViewPrivate::fixupHeader(), QQuickPathViewPrivate::handleMousePressEvent(), QQuickFlickablePrivate::handlePressEvent(), QQuickFlickablePrivate::handleReleaseEvent(), move(), move(), moveBy(), moveBy(), pause(), and QQuickFlickablePrivate::viewportAxisMoved().

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updateCurrentTime()

void QQuickTimeLine::updateCurrentTime ( int v )

overrideprotectedvirtual

GfxClock::isActive()

Reimplemented from QAbstractAnimationJob.

Definition at line 658 of file qquicktimeline.cpp.

References QQuickTimeLinePrivate::advance(), QQuickTimeLinePrivate::clockRunning, completed(), emit, QHash< Key, T >::isEmpty(), QQuickTimeLinePrivate::ops, QQuickTimeLinePrivate::prevTime, QAbstractAnimationJob::Running, QAbstractAnimationJob::start(), QAbstractAnimationJob::state(), QAbstractAnimationJob::stop(), QQuickTimeLinePrivate::syncAdj, and updated().

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updated

void QQuickTimeLine::updated ( )

signal

Emitted each time the timeline modifies QQuickTimeLineValues.

Even if multiple QQuickTimeLineValues are changed, this signal is only emitted once for each clock tick.

Referenced by QQuickListViewPrivate::fixup(), QQuickListViewPrivate::fixupHeaderCompleted(), and updateCurrentTime().

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Friends And Related Symbol Documentation

QQuickTimeLineObject

friend class QQuickTimeLineObject

friend

Definition at line 79 of file qquicktimeline_p_p.h.

QQuickTimeLinePrivate

friend struct QQuickTimeLinePrivate

friend

Definition at line 80 of file qquicktimeline_p_p.h.

Referenced by QQuickTimeLine().

---

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

• qtdeclarative/src/quick/util/qquicktimeline_p_p.h (9dd45fff835a7c261dacc9ee6239d42ef1a74bbe)
• qtdeclarative/src/quick/util/qquicktimeline.cpp (f641848af970190584a84ba6a0b9f2b59b2141b5)