Package icyllis.modernui.graphics

Class RenderNode

java.lang.Object

icyllis.modernui.graphics.RenderProperties

icyllis.modernui.graphics.RenderNode

public final class RenderNode
extends RenderProperties

Field Summary

Fields

Modifier and Type	Field	Description
@SharedPtr Surface	mLayerSurface

Constructor Summary

Constructors

Constructor	Description
RenderNode()	Creates a new RenderNode that can be used to record batches of drawing operations, and store / apply render properties when drawn.

Method Summary

Modifier and Type	Method	Description
Canvas	beginRecording(int width, int height)	Starts recording a display list for the render node.
void	endRecording()	Ends the recording for this display list.

Methods inherited from class icyllis.modernui.graphics.RenderProperties

getAlpha, getAnimationMatrix, getBottom, getCameraDistance, getClipToBounds, getElevation, getHasOverlappingRendering, getHeight, getInverseMatrix, getLayerAlpha, getLayerBlendMode, getLeft, getMatrix, getPivotX, getPivotY, getRight, getRotationX, getRotationY, getRotationZ, getScaleX, getScaleY, getTop, getTranslationX, getTranslationY, getTranslationZ, getUseCompositingLayer, getUseTransientLayer, getWidth, getX, getY, getZ, isCameraDistanceExplicitlySet, isPivotExplicitlySet, offsetLeftAndRight, offsetTopAndBottom, resetCameraDistance, resetPivot, setAlpha, setAnimationMatrix, setBottom, setCameraDistance, setClipBounds, setClipToBounds, setElevation, setHasOverlappingRendering, setLeft, setPivotX, setPivotY, setPosition, setPosition, setRight, setRotationX, setRotationY, setRotationZ, setScaleX, setScaleY, setTop, setTranslationX, setTranslationY, setTranslationZ, setUseCompositingLayer, setX, setY, setZ

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

mLayerSurface

@SharedPtr
public @SharedPtr Surface mLayerSurface

Constructor Details

RenderNode

public RenderNode()

Creates a new RenderNode that can be used to record batches of drawing operations, and store / apply render properties when drawn.

Method Details

beginRecording

@Nonnull
public Canvas beginRecording(int width,
 int height)

Starts recording a display list for the render node. All operations performed on the returned canvas are recorded and stored in this display list.

endRecording() must be called when the recording is finished in order to apply the updated display list. Failing to call endRecording() will result in an IllegalStateException if this method is called again.

Parameters:

width - The width of the recording viewport. This will not alter the width of the RenderNode itself, that must be set with RenderProperties.setPosition(Rect).

height - The height of the recording viewport. This will not alter the height of the RenderNode itself, that must be set with RenderProperties.setPosition(Rect).

Returns:

A canvas to record drawing operations.

Throws:

IllegalStateException - If a recording is already in progress. That is, the previous call to this method did not call endRecording() first.

See Also:

• endRecording()
• invalid reference

  #hasDisplayList()

endRecording

public void endRecording()

Ends the recording for this display list. Calling this method marks the display list valid and

invalid reference

#hasDisplayList()

will return true.

See Also:

• beginRecording(int, int)
• invalid reference

  #hasDisplayList()