Property target interpolation timeline is a timeline that gradually interpolates specified property from its old value to new one each time new value is set to the property. More...

#include <kanzi/ui/node_component/animation/property_target_interpolation_timeline.hpp>

Inheritance diagram for kanzi::PropertyTargetInterpolationTimeline:

[legend]

Public Types
using	PlaybackIdleStateChangedCallback
	Callback function, invoked when the idle state of the playback of this timeline changes.

Public Types inherited from kanzi::Timeline
enum	DirectionBehavior { DirectionBehaviorNormal , DirectionBehaviorReverse , DirectionBehaviorPingPong }
	Specifies the direction behavior for a timeline. More...

Public Types inherited from kanzi::PropertyObject
using	PropertyObjectDestroyCallback

using	PropertyStorageConstIterator

using	PropertyStorageContainer

using	PropertyStorageIterator

using	PropertyStoragePtr

using	PropertyStorageReverseIterator

Public Member Functions
float	getAcceleration () const
	Gets acceleration coefficient of interpolation.

float	getDrag () const
	Gets drag coefficient of interpolation.

PropertyField	getInterpolatedPropertyField () const
	Gets the field of property the value of which should be interpolated.

AbstractPropertyType	getInterpolatedPropertyType () const
	Gets the type of property the value of which should be interpolated.

string	getObjectPath () const
	Gets path to object the property of which should be interpolated.

bool	isPlaybackIdle () const
	Returns whether the playback of this timeline last reported that it is idle.

void	notifyPlaybackIdle (bool isIdle)
	Reports the idle state of the playback of this timeline.

void	setAcceleration (float acceleration)
	Sets acceleration coefficient of interpolation.

void	setDrag (float drag)
	Sets drag coefficient of interpolation.

void	setPlaybackIdleStateChangedCallback (PlaybackIdleStateChangedCallback callback)
	Sets the callback to invoke when the idle state of the playback of this timeline changes.

Public Member Functions inherited from kanzi::Timeline
TimeInterval	calculateClipInterval ()
	Calculates clip interval of timeline.

optional< chrono::milliseconds >	calculateDuration ()
	Calculates the duration of the timeline.

unsigned int	calculateIterationCount ()
	Calculates number of iterations in timeline.

optional< chrono::milliseconds >	calculateIterationDuration ()
	Calculates iteration duration.

TimelinePlaybackSharedPtr	createPlayback (TimelinePlaybackContext &context)
	Creates playback for timeline.

optional< chrono::milliseconds >	getClipDuration () const
	Gets the clip duration of the timeline (in milliseconds).

chrono::milliseconds	getClipStartTime () const
	Gets the clip start time of the timeline (in milliseconds).

DirectionBehavior	getDirectionBehavior () const
	Gets the direction behavior of a timeline.

float	getDurationScale () const
	Gets the duration scale of timeline.

float	getMinimumDurationScale () const
	Gets minimum duration scale.

unsigned int	getRepeatCount () const
	Gets the repeat count of the timeline (zero indicates infinite repeats).

chrono::milliseconds	getStartTime () const
	Gets the start time of the timeline (in milliseconds).

void	setClipDuration (optional< chrono::milliseconds > duration)
	Sets the clip duration of the timeline (in milliseconds).

void	setClipStartTime (chrono::milliseconds clipStartTime)
	Sets the clip start time of the timeline (in milliseconds).

void	setDirectionBehavior (DirectionBehavior directionBehavior)
	Sets the direction behavior of a timeline.

void	setDurationScale (float scale)
	Sets the duration scale of timeline.

void	setRepeatCount (unsigned int repeatCount)
	Sets the repeat count of the timeline (zero indicates infinite repeats).

void	setStartTime (chrono::milliseconds startTime)
	Gets the start time of the timeline (in milliseconds).

Public Member Functions inherited from kanzi::Object
AppliedStyleEntrySharedPtr	applyObjectStyle (kanzi::StyleSharedPtr style)
	Applies a style to an object.

void	applyObjectStyles ()
	Apply all styles for an object node.

Domain *	getDomain () const
	Returns the domain the object belongs to.

const Metaclass *	getDynamicMetaclass () const override
	Returns the metaclass of the dynamic type of the object.

MainLoopScheduler *	getMainLoopScheduler () const
	Returns the MainLoopScheduler instance of the associated Domain.

detail::MessageDispatcher *	getMessageDispatcher () const
	Returns the message dispatcher of the object.

ResourceManager *	getResourceManager () const
	Returns the resource manager of the object.

ScriptingContextSharedPtr	getScriptingContext () const
	Gets the scripting context of the object.

	Object (Domain *domain)

void	setScriptingContext (ScriptingContextSharedPtr context)
	Sets the scripting context of the object.

void	unapplyObjectStyle (AppliedStyleEntrySharedPtr appliedStyleEntry)

void	unapplyObjectStyles ()
	Unapplies and removes all applied styles.

	~Object () override

Public Member Functions inherited from kanzi::MetaObject
bool	isTypeOf (const Metaclass *objectType) const
	Determines if the type of this object is the given type or derived from it.

virtual	~MetaObject ()

Public Member Functions inherited from kanzi::PropertyObject
void	addDestroyCallback (PropertyObjectDestroyCallback cb)
	Adds a destroy callback that is called when the object is being destroyed.

template<typename DataType >
void	addPropertyModifier (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::ModifierCallback callback, void *owner)
	Adds a property modifier.

template<typename DataType >
void	addPropertyModifierWithoutNotifyingHandlers (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::ModifierCallback callback, void *owner)
	Adds a property modifier without notifying handlers.

template<typename DataType >
void	addPropertyNotificationHandler (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::NotificationCallback callback, void *owner)

template<typename DataType >
void	addPropertyValueSource (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::TypedValueSource valueSource, PropertyValuePrecedence precedence, AbstractPropertyTypeDescriptor::ValueSourceOwner owner)

template<typename DataType >
void	addPropertyValueSource (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::TypedValueSource valueSource, PropertyValuePrecedence precedence, void ownerPointer)

PropertyStorageContainer::iterator	beginPropertyStorage ()
	Returns the begin iterator to the internal property storage container.

PropertyStorageContainer::const_iterator	beginPropertyStorage () const
	Returns the begin iterator to the internal property storage container.

void	clearPropertyFlag (AbstractPropertyType propertyType, uint32_t flag)

void	copyLocalValue (const PropertyObject &other, AbstractPropertyType propertyType)
	Copies local value of single property from another object.

void	copyLocalValues (const PropertyObject &other)
	Copies all local values from another object.

PropertyStorageContainer::iterator	endPropertyStorage ()
	Returns the end iterator to the internal property storage container.

PropertyStorageContainer::const_iterator	endPropertyStorage () const
	Returns the end iterator to the internal property storage container.

template<typename DataType >
PropertyType< DataType >::Traits::ReturnType	getAbstractProperty (AbstractPropertyType abstractPropertyType) const

template<typename DataType >
PropertyType< DataType >::Traits::ReturnType	getAbstractPropertyBase (AbstractPropertyType abstractPropertyType) const

template<typename DataType >
optional< typename PropertyType< DataType >::Traits::ReturnType >	getOptionalAbstractProperty (AbstractPropertyType abstractPropertyType) const

template<typename DataType >
optional< typename PropertyType< DataType >::Traits::ReturnType >	getOptionalProperty (const PropertyType< DataType > &propertyType) const
	Evaluates the property value in the same way as the overload above but does not default to the value in property metadata if there are no inputs to the property value.

template<typename DataType >
optional< typename PropertyType< DataType >::Traits::ReturnType >	getOptionalPropertyBase (const PropertyType< DataType > &propertyType) const
	Returns the current value of a property disregarding modifiers, but does not default to the value in property metadata if there are no inputs to the property value.

template<typename DataType >
PropertyType< DataType >::Traits::ReturnType	getProperty (const PropertyType< DataType > &propertyType) const
	Returns the current value of a property type.

template<typename DataType >
PropertyType< DataType >::Traits::ReturnType	getPropertyBase (const PropertyType< DataType > &propertyType) const
	Returns the current value of a property disregarding modifiers.

template<typename DataType >
size_t	getPropertyNotificationHandlerCount (const PropertyType< DataType > &propertyType) const
	Gets number of current notification handlers for given property type.

bool	hasBaseValue (AbstractPropertyType propertyType) const
	Evaluates whether there are any inputs into the property value, disregarding modifiers.

bool	hasLocalValue (AbstractPropertyType propertyType) const
	Evaluates whether there is a local value set for the property.

bool	hasNonClassValue (AbstractPropertyType propertyType) const
	Evaluates whether there is a value of any precedence higher than class default value set for the property.

bool	hasValue (AbstractPropertyType propertyType) const
	Evaluates whether there are any inputs into the property value.

bool	isPropertyFlagSet (AbstractPropertyType propertyType, uint32_t flag) const

virtual void	onPropertyChanged (AbstractPropertyType propertyType, PropertyNotificationReason reason)
	Virtual function to handle property change notifications.

	PropertyObject ()

void	removeKzbProperties ()
	Remove all KZB properties.

void	removeKzbProperties (flat_set< AbstractPropertyType > *keepProperties)
	Remove all KZB properties that are not included in a given set.

template<typename DataType >
void	removeLocalPropertyValueSource (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::TypedValueSource valueSource, void ownerPointer)

void	removeLocalValue (AbstractPropertyType propertyType)
	Removes the local value associated with the property.

template<typename DataType >
void	removePropertyModifier (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::ModifierCallback callback, void *owner)
	Removes a property modifier.

template<typename DataType >
void	removePropertyModifierWithoutNotifyingHandlers (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::ModifierCallback callback, void *owner)
	Removes a property modifier without notifying handlers.

template<typename DataType >
void	removePropertyNotificationHandler (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::NotificationCallback callback, void *owner)

template<typename DataType >
void	removePropertyValueSource (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::TypedValueSource valueSource, void ownerPointer)

template<typename DataType >
void	setAbstractProperty (AbstractPropertyType abstractPropertyType, typename PropertyType< DataType >::Traits::ParameterType value)

template<typename DataType >
void	setProperty (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Traits::ParameterType value)
	Sets the local value of a property type.

void	setPropertyFlag (AbstractPropertyType propertyType, uint32_t flag)

void	validatePropertyModifiersAndNotifyHandlers (AbstractPropertyType propertyType)
	Validates property modifiers and notifies handlers.

virtual	~PropertyObject ()

Static Public Member Functions
static PropertyTargetInterpolationTimelineSharedPtr	create (Domain *domain, string_view objectPath, AbstractPropertyType interpolatedPropertyType, PropertyField interpolatedPropertyField)
	Creates property target interpolation timeline with default interpolation parameter values.

static PropertyTargetInterpolationTimelineSharedPtr	create (Domain *domain, string_view objectPath, AbstractPropertyType interpolatedPropertyType, PropertyField interpolatedPropertyField, float acceleration, float drag)
	Creates property target interpolation timeline.

Static Public Member Functions inherited from kanzi::Object
static const Metaclass *	getStaticMetaclass ()
	Returns the metaclass of Object class.

static PropertyTypeEditorInfoSharedPtr	makeEditorInfo ()
	Default implementation that returns empty editor info.

Static Public Member Functions inherited from kanzi::MetaObject
static const Metaclass *	getStaticMetaclass ()
	Returns the metaclass of Object class.

static PropertyTypeEditorInfoSharedPtr	makeEditorInfo ()
	Default implementation that returns empty editor info.

Protected Member Functions
optional< chrono::milliseconds >	calculateContentDuration () override
	Timeline::calculateContentDuration() implementation.

TimelinePlaybackSharedPtr	createPlaybackOverride (TimelinePlaybackContext &context) override
	Timeline::createPlaybackOverride() implementation.

	PropertyTargetInterpolationTimeline (Domain *domain, string_view objectPath, AbstractPropertyType interpolatedPropertyType, PropertyField interpolatedPropertyField, float acceleration, float drag)
	Constructor.

Protected Member Functions inherited from kanzi::Timeline
virtual void	loadOverride (Domain *domain, string_view name, KzbFile &kzbFile, KzbMemoryParser &parser)
	Loads timeline data from KZB.

	Timeline (Domain *domain)
	Constructor.

Protected Member Functions inherited from kanzi::Object
void	initialize ()

void	onCopy (const Object &other)

Protected Member Functions inherited from kanzi::MetaObject
void	initialize ()

	MetaObject ()

Protected Member Functions inherited from kanzi::PropertyObject
AbstractPropertyTypeDescriptor::ValueSourceEntry *	acquireLocalValueSourceEntry (AbstractPropertyTypeDescriptor &descriptor, AbstractPropertyTypeDescriptor::PropertyStorage &propertyStorage)
	Acquires a local value source entry that is free for the assignment of a value.

AbstractPropertyTypeDescriptor::ModifierStorage *	acquireModifierStorage (AbstractPropertyTypeDescriptor &descriptor, AbstractPropertyTypeDescriptor::PropertyStorage &propertyStorage)

AbstractPropertyTypeDescriptor::NotificationStorage *	acquireNotificationStorage (AbstractPropertyTypeDescriptor &descriptor)

PropertyStoragePtr	acquirePropertyStorage (AbstractPropertyTypeDescriptor &descriptor)
	Acquires a property storage.

template<typename DataType >
void	addPropertyModifierBase (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::ModifierCallback callback, void *owner, bool notify)
	Adds a property modifier entry to the property modifier stack and validates the modifiers.

void	addPropertyValueSource (AbstractPropertyTypeDescriptor &descriptor, AbstractPropertyTypeDescriptor::ValueSource valueSource, PropertyValuePrecedence precedence, AbstractPropertyTypeDescriptor::ValueSourceOwner owner)
	Internally adds a property value source.

void	addPropertyValueSource (AbstractPropertyTypeDescriptor &descriptor, AbstractPropertyTypeDescriptor::ValueSource valueSource, PropertyValuePrecedence precedence, void ownerPointer)
	Internally adds a property value source.

AbstractPropertyTypeDescriptor::ValueSourceEntry *	constructLocalValueSourceEntry (AbstractPropertyTypeDescriptor &descriptor, AbstractPropertyTypeDescriptor::PropertyStorage &propertyStorage)
	Constructs a new local value source entry.

void	copyLocalValue (const AbstractPropertyTypeDescriptor::PropertyStorage &otherPropertyStorage)
	Copy local value from property storage.

AbstractPropertyTypeDescriptor::ModifierStorage *	findModifierStorage (AbstractPropertyTypeDescriptor &descriptor)

AbstractPropertyTypeDescriptor::NotificationStorage *	findNotificationStorage (AbstractPropertyTypeDescriptor &descriptor) const

AbstractPropertyTypeDescriptor::PropertyStorage *	findPropertyStorage (AbstractPropertyTypeDescriptor &descriptor) const
	Gets the property storage for given property type descriptor.

PropertyStoragePtr	findPropertyStoragePtr (AbstractPropertyTypeDescriptor &descriptor) const
	Gets property storage intrusive pointer which you can use to hold a reference until the end of the operation.

AbstractPropertyTypeDescriptor *	findPropertyTypeDescriptorByNameAndDataType (string_view name, PropertyDataType dataType) const
	Finds a property type descriptor by name and data type.

AbstractPropertyTypeDescriptor *	findPropertyTypeDescriptorByQualifiedNameAndDataType (string_view qualifiedName, PropertyDataType dataType) const
	Like findPropertyTypeDescriptorByNameAndDataType, but only searches by matching with qualified names.

AbstractPropertyTypeDescriptor *	findPropertyTypeDescriptorByUnqualifiedNameAndDataType (string_view unqualifiedName, PropertyDataType dataType) const
	Like findPropertyTypeDescriptorByNameAndDataType, but only searches by matching with unqualified names.

AbstractPropertyTypeDescriptor::ValueSource *	getClassValueSource (AbstractPropertyTypeDescriptor &descriptor) const

AbstractPropertyTypeDescriptor::ValueSource *	getFinalValueSource (AbstractPropertyTypeDescriptor &descriptor) const

AbstractPropertyTypeDescriptor::ValueSource *	getNonClassValueSource (AbstractPropertyTypeDescriptor &descriptor) const

AbstractPropertyTypeDescriptor::ValueSource *	getTopValueSource (AbstractPropertyTypeDescriptor &descriptor) const
	Gets the top-level value source for a given property descriptor.

virtual void	notifyPropertyHandlers (PropertyStoragePtr &propertyStorage, PropertyNotificationReason reason)
	Notifies all property handlers on a property storage.

void	onCopy (const PropertyObject &other)

void	removeLocalValue (AbstractPropertyTypeDescriptor &descriptor, PropertyStoragePtr &propertyStorage)
	Removes a local value from the given property storage.

template<typename DataType >
void	removePropertyModifierBase (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::ModifierCallback callback, void *owner, bool notify)
	Removes a property modifier entry from the property modifier stack and validates the remaining modifiers.

void	removePropertyValueSource (AbstractPropertyTypeDescriptor &descriptor, AbstractPropertyTypeDescriptor::ValueSource valueSource, void owner)
	Removes a property value source.

void	validatePropertyModifiers (AbstractPropertyTypeDescriptor::PropertyStorage &propertyStorage)
	Validates property modifiers without notifying handlers.

void	validatePropertyModifiersAndNotifyHandlers (PropertyStoragePtr &propertyStorage)
	Validates property modifiers and notifies handlers.

Additional Inherited Members
Protected Types inherited from kanzi::Object
typedef vector< AppliedStyleEntrySharedPtr >	AppliedStyleContainer
	Applied style container.

Protected Attributes inherited from kanzi::Object
AppliedStyleContainer	m_appliedStyles
	Listing of applied styles applied to this object.

Detailed Description

Property target interpolation timeline is a timeline that gradually interpolates specified property from its old value to new one each time new value is set to the property.

Timeline interpolates property of specified type on the object specified by its path.

Interpolation of the property value is done by emulating behavior of critically damped harmonic oscillator. The behavior of interpolation is controlled by acceleration and drag coefficients:

Acceleration specifies how fast interpolation will be done from old property value to new one. Larger acceleration leads to faster reaching new property value.
Drag affects the maximum speed of interpolation. Larger drag lowers maximum speed of interpolation.

Note that setting time to playback of this timeline or advancing it in reverse direction is not supported.

This timeline has an infinite duration, because a write to the interpolated property can restart the interpolation at any time. A playback of this timeline therefore stays in the Timeline clock, and counts as an active animation, which prevents the application from suspending indefinitely. To let the application suspend, the playback reports through setPlaybackIdleStateChangedCallback() when it becomes idle, which means that the interpolation has reached its target and the interpolated property has not changed since. Remove an idle playback from the Timeline clock, and add it back when the callback reports that the playback is interpolating again.

Examples

To create property target interpolation timeline and set its target property and interpolation settings:

To create playback for property target interpolation timeline:

SceneGraphTimelinePlaybackContext context(*node);

TimelinePlaybackSharedPtr playback = timeline->createPlayback(context);

To add playback of property target interpolation timeline to the clock:

To keep an idle interpolation out of the Timeline clock:

    auto interpolator = PropertyTargetInterpolator::create(m_domain, "interpolator");
    interpolator->setInterpolatedPropertyType(propertyType.getName());
    interpolator->setAcceleration(100.0f);
    interpolator->setDrag(1.0f);
 
    // Attaching the interpolator adds its playback to the Timeline clock. The interpolator follows the
    // idle state of that playback, and takes the playback out of the clock while the interpolation has
    // nothing to do, so that an idle interpolation does not stop the application from suspending.
    node->addNodeComponent(interpolator);

Member Typedef Documentation

◆ PlaybackIdleStateChangedCallback

using kanzi::PropertyTargetInterpolationTimeline::PlaybackIdleStateChangedCallback

Callback function, invoked when the idle state of the playback of this timeline changes.

The playback is idle when it has reached the target value and has nothing left to interpolate. The argument is true when the playback becomes idle, false when it resumes interpolating.

Since: Kanzi 4.1.1

Constructor & Destructor Documentation

◆ PropertyTargetInterpolationTimeline()

kanzi::PropertyTargetInterpolationTimeline::PropertyTargetInterpolationTimeline	(	Domain *	domain,
		string_view	objectPath,
		AbstractPropertyType	interpolatedPropertyType,
		PropertyField	interpolatedPropertyField,
		float	acceleration,
		float	drag )

inlineexplicitprotected

Constructor.

Parameters

domain	Domain.
objectPath	Path to object the property of which should be interpolated.
interpolatedPropertyType	Type of property the value of which should be interpolated.
interpolatedPropertyField	Field of property the value of which should be interpolated.
acceleration	Acceleration coefficient of interpolation.
drag	Drag coefficient of interpolation.

Member Function Documentation

◆ create() [1/2]

static PropertyTargetInterpolationTimelineSharedPtr kanzi::PropertyTargetInterpolationTimeline::create	(	Domain *	domain,
		string_view	objectPath,
		AbstractPropertyType	interpolatedPropertyType,
		PropertyField	interpolatedPropertyField,
		float	acceleration,
		float	drag )

inlinestatic

Creates property target interpolation timeline.

Parameters

domain	Domain.
objectPath	Path to object the property of which should be interpolated.
interpolatedPropertyType	Type of property the value of which should be interpolated.
interpolatedPropertyField	Field of property the value of which should be interpolated.
acceleration	Acceleration coefficient of interpolation.
drag	Drag coefficient of interpolation.

◆ create() [2/2]

static PropertyTargetInterpolationTimelineSharedPtr kanzi::PropertyTargetInterpolationTimeline::create	(	Domain *	domain,
		string_view	objectPath,
		AbstractPropertyType	interpolatedPropertyType,
		PropertyField	interpolatedPropertyField )

inlinestatic

Creates property target interpolation timeline with default interpolation parameter values.

Default value for acceleration is 1.0, default value for drag is 0.0.

Parameters

domain	Domain.
objectPath	Path to object the property of which should be interpolated.
interpolatedPropertyType	Type of property the value of which should be interpolated.
interpolatedPropertyField	Field of property the value of which should be interpolated.

◆ getObjectPath()

string kanzi::PropertyTargetInterpolationTimeline::getObjectPath ( ) const

inline

Gets path to object the property of which should be interpolated.

Returns: Object path.

◆ getInterpolatedPropertyType()

AbstractPropertyType kanzi::PropertyTargetInterpolationTimeline::getInterpolatedPropertyType ( ) const

inline

Gets the type of property the value of which should be interpolated.

Returns: Property type.

◆ getInterpolatedPropertyField()

PropertyField kanzi::PropertyTargetInterpolationTimeline::getInterpolatedPropertyField ( ) const

inline

Gets the field of property the value of which should be interpolated.

Returns: Property field.

◆ setAcceleration()

void kanzi::PropertyTargetInterpolationTimeline::setAcceleration ( float acceleration )

inline

Sets acceleration coefficient of interpolation.

Parameters

acceleration Acceleration coefficient of interpolation.

◆ getAcceleration()

float kanzi::PropertyTargetInterpolationTimeline::getAcceleration ( ) const

inline

Gets acceleration coefficient of interpolation.

Returns: Acceleration coefficient of interpolation.

◆ setDrag()

void kanzi::PropertyTargetInterpolationTimeline::setDrag ( float drag )

inline

Sets drag coefficient of interpolation.

Parameters

drag	Drag coefficient of interpolation.

◆ getDrag()

float kanzi::PropertyTargetInterpolationTimeline::getDrag ( ) const

inline

Gets drag coefficient of interpolation.

Returns: Drag coefficient of interpolation.

◆ setPlaybackIdleStateChangedCallback()

void kanzi::PropertyTargetInterpolationTimeline::setPlaybackIdleStateChangedCallback ( PlaybackIdleStateChangedCallback callback )

inline

Sets the callback to invoke when the idle state of the playback of this timeline changes.

The callback reports the idle state of a single playback, so set it only on a timeline from which you create one playback.

Parameters

callback Callback to invoke when the idle state of the playback changes.

See also: notifyPlaybackIdle()

Since: Kanzi 4.1.1

◆ notifyPlaybackIdle()

void kanzi::PropertyTargetInterpolationTimeline::notifyPlaybackIdle ( bool isIdle )

inline

Reports the idle state of the playback of this timeline.

The playback of this timeline calls this function. Do not call it from application code. Invokes the callback set with setPlaybackIdleStateChangedCallback() only when the reported state differs from the state reported last.

Parameters

isIdle true when the playback is idle, false when it is interpolating.

See also: setPlaybackIdleStateChangedCallback()

Since: Kanzi 4.1.1

◆ isPlaybackIdle()

bool kanzi::PropertyTargetInterpolationTimeline::isPlaybackIdle ( ) const

inline

Returns whether the playback of this timeline last reported that it is idle.

Use this to reconcile with a playback that reported its idle state while the Timeline clock was still adding it, because the clock ticks a playback when it adds it.

Returns: true when the playback last reported that it is idle, false otherwise.

See also: notifyPlaybackIdle()

Since: Kanzi 4.1.1

◆ createPlaybackOverride()

TimelinePlaybackSharedPtr kanzi::PropertyTargetInterpolationTimeline::createPlaybackOverride ( TimelinePlaybackContext & context )

overrideprotectedvirtual

Timeline::createPlaybackOverride() implementation.

Implements kanzi::Timeline.

◆ calculateContentDuration()

optional< chrono::milliseconds > kanzi::PropertyTargetInterpolationTimeline::calculateContentDuration ( )

overrideprotectedvirtual

Timeline::calculateContentDuration() implementation.

Reimplemented from kanzi::Timeline.

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

kanzi/ui/node_component/animation/property_target_interpolation_timeline.hpp

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Examples

Member Typedef Documentation

◆ PlaybackIdleStateChangedCallback

Constructor & Destructor Documentation

◆ PropertyTargetInterpolationTimeline()

Member Function Documentation

◆ create() [1/2]

◆ create() [2/2]

◆ getObjectPath()

◆ getInterpolatedPropertyType()

◆ getInterpolatedPropertyField()

◆ setAcceleration()

◆ getAcceleration()

◆ setDrag()

◆ getDrag()

◆ setPlaybackIdleStateChangedCallback()

◆ notifyPlaybackIdle()

◆ isPlaybackIdle()

◆ createPlaybackOverride()

◆ calculateContentDuration()