com.sun.prism

Interface Presentable

All Superinterfaces:

RenderTarget, Surface

All Known Implementing Classes:

J2DPresentable

public interface Presentable
extends RenderTarget

Method Summary

Modifier and Type	Method and Description
float	getPixelScaleFactor()
boolean	lockResources(PresentableState pState) Locks any underlying resources needed for a createGraphics/prepare/present sequence and returns a boolean indicating if the presentable needs to be recreated.
boolean	prepare(Rectangle dirtyregion) display the indicated region to the user.
boolean	present() present the prepared region to the user.

Methods inherited from interface com.sun.prism.RenderTarget

createGraphics, getAssociatedScreen, isMSAA, isOpaque, setOpaque

Methods inherited from interface com.sun.prism.Surface

getContentHeight, getContentWidth, getContentX, getContentY, getPhysicalHeight, getPhysicalWidth

Method Detail

lockResources

boolean lockResources(PresentableState pState)

Locks any underlying resources needed for a createGraphics/prepare/present sequence and returns a boolean indicating if the presentable needs to be recreated. If the method returns true and the Presentable implements GraphicsResource then its dispose() method will be called prior to recreating a new Presentable object and so no resource should need to be locked in that case. The resources will be unlocked in either #prepare() or present().

Parameters:

pState - The presentation state for the upcoming pulse

Returns:

true if the caller should recreate the Presentable

prepare

boolean prepare(Rectangle dirtyregion)

display the indicated region to the user.

Parameters:

dirtyregion - display region or null for full area

Returns:

true if the provided region was successfully displayed, false otherwise

present

boolean present()

present the prepared region to the user.

getPixelScaleFactor

float getPixelScaleFactor()