java.awt
Class AlphaCompositeContext

java.lang.Object
  |
  +--java.awt.AlphaCompositeContext

class AlphaCompositeContext

extends Object

implements CompositeContext

Field Summary

(package private) java.awt.image.ColorModel	dstCM
(package private) boolean	dstNeedConvert
(package private) float	extraAlpha
(package private) int	rule
(package private) java.awt.image.ColorModel	srcCM
(package private) boolean	srcNeedConvert

Constructor Summary

AlphaCompositeContext(java.awt.image.ColorModel s, java.awt.image.ColorModel d, int rule, float extraAlpha)

Method Summary

void	compose(java.awt.image.Raster src1, java.awt.image.Raster src2, java.awt.image.WritableRaster dst) This method composes the two source tiles and places the result in the destination tile.
(package private) java.awt.image.WritableRaster	convertRaster(java.awt.image.Raster inRaster, java.awt.image.ColorModel inCM, java.awt.image.ColorModel outCM)
void	dispose() Release resources allocated for context.

Methods inherited from class java.lang.Object

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

Field Detail

srcCM

java.awt.image.ColorModel srcCM

dstCM

java.awt.image.ColorModel dstCM

srcNeedConvert

boolean srcNeedConvert

dstNeedConvert

boolean dstNeedConvert

rule

int rule

extraAlpha

float extraAlpha

Constructor Detail

AlphaCompositeContext

public AlphaCompositeContext(java.awt.image.ColorModel s,
                             java.awt.image.ColorModel d,
                             int rule,
                             float extraAlpha)

Method Detail

convertRaster

java.awt.image.WritableRaster convertRaster(java.awt.image.Raster inRaster,
                                            java.awt.image.ColorModel inCM,
                                            java.awt.image.ColorModel outCM)

dispose

public void dispose()

Release resources allocated for context.

Specified by:

dispose in interface CompositeContext

compose

public void compose(java.awt.image.Raster src1,
                    java.awt.image.Raster src2,
                    java.awt.image.WritableRaster dst)

This method composes the two source tiles and places the result in the destination tile. Note that the destination can be the same object as either the first or second source.

Specified by:

compose in interface CompositeContext

Parameters:

src1 - The first source tile for the compositing operation.

src2 - The second source tile for the compositing operation.

dst - The tile where the result of the operation is stored.