public class

PAGComposition

extends PAGLayer

java.lang.Object
↳	org.libpag.PAGLayer
	↳	org.libpag.PAGComposition

Known Direct Subclasses

PAGFile

Summary

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Inherited Constants

From class org.libpag.PAGLayer

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Inherited Fields

From class org.libpag.PAGLayer

Public Constructors
	PAGComposition(long nativeContext)

Public Methods
static PAGComposition	Make(int width, int height) Make a empty PAGComposition with specified size.
void	addLayer(PAGLayer pagLayer) Add PAGLayer to current PAGComposition at the top.
void	addLayerAt(PAGLayer pagLayer, int index) Add PAGLayer to current PAGComposition at the specified index.
ByteBuffer	audioBytes() The audio data of this composition, which is an AAC audio in an MPEG-4 container.
PAGMarker[]	audioMarkers() Returns the audio markers of this composition.
long	audioStartTime() Indicates when the first frame of the audio plays in the composition's timeline.
boolean	contains(PAGLayer pagLayer) Check whether current PAGComposition contains the specified pagLayer.
PAGLayer	getLayerAt(int index) Returns the child layer that exists at the specified index.
int	getLayerIndex(PAGLayer layer) Returns the index position of a child layer.
PAGLayer[]	getLayersByName(String layerName) Returns an array of layers that match the specified layer name.
PAGLayer[]	getLayersUnderPoint(float localX, float localY) Returns an array of layers that lie under the specified point.
int	height() Returns the height of Composition.
int	numChildren() Returns the number of child layers of this composition.
void	removeAllLayers() Remove all PAGLayers from current PAGComposition.
PAGLayer	removeLayer(PAGLayer pagLayer) Remove the specified PAGLayer from current PAGComposition.
PAGLayer	removeLayerAt(int index) Remove the PAGLayer at specified index from current PAGComposition.
void	setContentSize(int width, int height) Set the size of the Composition.
void	setLayerIndex(PAGLayer layer, int index) Changes the position of an existing child in the container.
void	swapLayer(PAGLayer pagLayer1, PAGLayer pagLayer2) Swap the layers.
void	swapLayerAt(int index1, int index2) Swap the layers at the specified index.
int	width() The width of Composition.

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Inherited Methods

From class org.libpag.PAGLayer

long	currentTime() The current time of the layer in microseconds, the layer is invisible if currentTime is not in the visible range `(startTime <= currentTime < startTime + duration)`.
long	duration() The duration of the layer in microseconds, indicates the length of the visible range.
int	editableIndex() Ranges from 0 to PAGFile.numTexts - 1 if the layer type is text, or from 0 to PAGFile.numImages -1 if the layer type is image, otherwise returns -1.
boolean	equals(Object obj)
boolean	excludedFromTimeline() Indicate whether this layer is excluded from parent's timeline.
void	finalize()
float	frameRate() Returns the frame rate of this layer.
RectF	getBounds() Returns a rectangle in pixels that defines the original area of the layer, which is not transformed by the matrix.
double	getProgress() Returns the current progress of play position, the value is from 0.0 to 1.0.
Matrix	getTotalMatrix() The final matrix for displaying, it is the combination of the matrix property and current matrix from animation.
long	globalToLocalTime(long globalTime) Converts the time from the PAGSurface (global) to the PAGLayer's (local) timeline timeline.
int	hashCode()
String	layerName() Returns the name of the layer.
int	layerType() Returns the type of layer.
long	localTimeToGlobal(long localTime) Converts the time from the PAGLayer's (local) timeline to the PAGSurface (global) timeline.
PAGMarker[]	markers() Returns the markers of this layer.
Matrix	matrix() A matrix object containing values that alter the scaling, rotation, and translation of the layer.
PAGComposition	parent() Indicates the Container instance that contains this Node instance.
void	resetMatrix() Resets the matrix to its default value.
void	setCurrentTime(long time) Set the current time of the layer in microseconds.
void	setExcludedFromTimeline(boolean value) Set the excludedFromTimeline flag of this layer.
void	setMatrix(Matrix matrix) A matrix object containing values that alter the scaling, rotation, and translation of the layer.
void	setProgress(double value) Set the progress of play position, the value ranges from 0.0 to 1.0.
void	setStartTime(long time) Set the start time of the layer, in microseconds.
void	setVisible(boolean value)
long	startTime() The start time of the layer in microseconds, indicates the start position of the visible range.
PAGLayer	trackMatteLayer() Returns trackMatte layer of this layer.
boolean	visible() Whether or not the layer is visible.

From class java.lang.Object

Public Constructors

public PAGComposition (long nativeContext)

Public Methods

public static PAGComposition Make (int width, int height)

Make a empty PAGComposition with specified size.

public void addLayer (PAGLayer pagLayer)

Add PAGLayer to current PAGComposition at the top.

public void addLayerAt (PAGLayer pagLayer, int index)

Add PAGLayer to current PAGComposition at the specified index.

public ByteBuffer audioBytes ()

The audio data of this composition, which is an AAC audio in an MPEG-4 container.

public PAGMarker[] audioMarkers ()

Returns the audio markers of this composition.

public long audioStartTime ()

Indicates when the first frame of the audio plays in the composition's timeline.

public boolean contains (PAGLayer pagLayer)

Check whether current PAGComposition contains the specified pagLayer.

public PAGLayer getLayerAt (int index)

Returns the child layer that exists at the specified index.

Parameters

index	The index position of the child layer.

Returns

The child layer at the specified index position.

public int getLayerIndex (PAGLayer layer)

Returns the index position of a child layer.

Parameters

layer	The layer instance to identify.

Returns

The index position of the child layer to identify.

public PAGLayer[] getLayersByName (String layerName)

Returns an array of layers that match the specified layer name.

public PAGLayer[] getLayersUnderPoint (float localX, float localY)

Returns an array of layers that lie under the specified point. The point is in pixels and from this PAGComposition's local coordinates.

public int height ()

Returns the height of Composition.

public int numChildren ()

Returns the number of child layers of this composition.

public void removeAllLayers ()

Remove all PAGLayers from current PAGComposition.

public PAGLayer removeLayer (PAGLayer pagLayer)

Remove the specified PAGLayer from current PAGComposition.

public PAGLayer removeLayerAt (int index)

Remove the PAGLayer at specified index from current PAGComposition.

public void setContentSize (int width, int height)

Set the size of the Composition.

public void setLayerIndex (PAGLayer layer, int index)

Changes the position of an existing child in the container. This affects the layering of child layers.

Parameters

layer	The child layer for which you want to change the index number.
index	The resulting index number for the child layer.

public void swapLayer (PAGLayer pagLayer1, PAGLayer pagLayer2)

Swap the layers.

public void swapLayerAt (int index1, int index2)

Swap the layers at the specified index.

public int width ()

The width of Composition.

Interfaces

Classes

PAGComposition

Summary

Public Constructors

public PAGComposition (long nativeContext)

Public Methods

public static PAGComposition Make (int width, int height)

public void addLayer (PAGLayer pagLayer)

public void addLayerAt (PAGLayer pagLayer, int index)

public ByteBuffer audioBytes ()

public PAGMarker[] audioMarkers ()

public long audioStartTime ()

public boolean contains (PAGLayer pagLayer)

public PAGLayer getLayerAt (int index)

Parameters

Returns

public int getLayerIndex (PAGLayer layer)

Parameters

Returns

public PAGLayer[] getLayersByName (String layerName)

public PAGLayer[] getLayersUnderPoint (float localX, float localY)

public int height ()

public int numChildren ()

public void removeAllLayers ()

public PAGLayer removeLayer (PAGLayer pagLayer)

public PAGLayer removeLayerAt (int index)

public void setContentSize (int width, int height)

public void setLayerIndex (PAGLayer layer, int index)

Parameters

public void swapLayer (PAGLayer pagLayer1, PAGLayer pagLayer2)

public void swapLayerAt (int index1, int index2)

public int width ()