railo.runtime.img.filter
Class InvertAlphaFilter

java.lang.Object
  extended by railo.runtime.img.filter.AbstractBufferedImageOp
      extended by railo.runtime.img.filter.PointFilter
          extended by railo.runtime.img.filter.InvertAlphaFilter
All Implemented Interfaces:
BufferedImageOp, Cloneable, DynFiltering

public class InvertAlphaFilter
extends PointFilter
implements DynFiltering

A Filter to invert the alpha channel of an image. This is really only useful for inverting selections, where we only use the alpha channel.


Constructor Summary
InvertAlphaFilter()
           
 
Method Summary
 BufferedImage filter(BufferedImage src, Struct parameters)
           
 int filterRGB(int x, int y, int rgb)
           
 String toString()
           
 
Methods inherited from class railo.runtime.img.filter.PointFilter
filter, setDimensions
 
Methods inherited from class railo.runtime.img.filter.AbstractBufferedImageOp
clone, createCompatibleDestImage, getBounds2D, getPoint2D, getRenderingHints, getRGB, setRGB
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

InvertAlphaFilter

public InvertAlphaFilter()
Method Detail

filterRGB

public int filterRGB(int x,
                     int y,
                     int rgb)
Specified by:
filterRGB in class PointFilter

toString

public String toString()
Overrides:
toString in class Object

filter

public BufferedImage filter(BufferedImage src,
                            Struct parameters)
                     throws PageException
Specified by:
filter in interface DynFiltering
Overrides:
filter in class PointFilter
Throws:
PageException


Copyright © 2012 Railo