com.myscript.iink

Interface IRenderTarget2

All Superinterfaces:

IRenderTarget

public interface IRenderTarget2
extends IRenderTarget

Represents a render target for the iink renderer. This version of the interface adds new functions introduced in version 1.4

Since:

1.4

Nested Class Summary

Nested classes/interfaces inherited from interface com.myscript.iink.IRenderTarget

IRenderTarget.LayerType

Method Summary

Modifier and Type	Method and Description
ICanvas2	createOffscreenRenderCanvas(int surfaceId) Creates a Canvas that draws onto the offscreen render surface associated with a given identifier.
int	createOffscreenRenderSurface(int width, int height, boolean alphaMask) Requests the creation of an offscreen render surface (e.g.
float	getPixelDensity() Returns the render target pixel density.
void	releaseOffscreenRenderSurface(int surfaceId) Requests the release of the offscreen render surface associated with a given identifier.
boolean	supportsOffscreenRendering() Indicates whether this render target supports offscreen rendering.

Methods inherited from interface com.myscript.iink.IRenderTarget

invalidate, invalidate

Method Detail

supportsOffscreenRendering

boolean supportsOffscreenRendering()

Indicates whether this render target supports offscreen rendering.

Returns:

true if offscreen rendering is supported, otherwise false.

Since:

1.4

getPixelDensity

float getPixelDensity()

Returns the render target pixel density.

Returns:

the render target pixel density.

Since:

1.4

createOffscreenRenderSurface

int createOffscreenRenderSurface(int width,
                                 int height,
                                 boolean alphaMask)

Requests the creation of an offscreen render surface (e.g. a bitmap), and returns a unique identifier for that surface.

Parameters:

width - the width of the surface to create (view coordinates in pixel).

height - the height of the surface to create (view coordinates in pixel).

alphaMask - request creation of an alpha mask. Only the alpha channel is relevant. The actual red, green and blue channel values are given by the blend color.

Returns:

a unique identifier associated with the created surface.

Note: createOffscreenRenderCanvas() will be called with this identifier, to request drawing of the associated surface.

Since:

1.4

releaseOffscreenRenderSurface

void releaseOffscreenRenderSurface(int surfaceId)

Requests the release of the offscreen render surface associated with a given identifier.

Parameters:

surfaceId - the identifier of the surface to release.

Since:

1.4

createOffscreenRenderCanvas

ICanvas2 createOffscreenRenderCanvas(int surfaceId)

Creates a Canvas that draws onto the offscreen render surface associated with a given identifier.

Parameters:

surfaceId - the identifier of the surface to be drawn.

Returns:

a Canvas to draw on the requested surface.

Since:

1.4