javax.swing
Class GrayFilter

java.lang.Object
  extended by java.awt.image.ImageFilter
      extended by java.awt.image.RGBImageFilter
          extended by javax.swing.GrayFilter
All Implemented Interfaces:
ImageConsumer, Cloneable

public class GrayFilter
extends RGBImageFilter

Produces grayscale images out of colored images. This is used to provide default disabled icons for buttons.


Field Summary
 
Fields inherited from class java.awt.image.RGBImageFilter
canFilterIndexColorModel, newmodel, origmodel
 
Fields inherited from class java.awt.image.ImageFilter
consumer
 
Fields inherited from interface java.awt.image.ImageConsumer
COMPLETESCANLINES, IMAGEABORTED, IMAGEERROR, RANDOMPIXELORDER, SINGLEFRAME, SINGLEFRAMEDONE, SINGLEPASS, STATICIMAGEDONE, TOPDOWNLEFTRIGHT
 
Constructor Summary
GrayFilter(boolean b, int p)
          Create a GrayFilter.
 
Method Summary
static Image createDisabledImage(Image src)
          Create grayed image
 int filterRGB(int x, int y, int rgb)
          Filter RGB to gray
 
Methods inherited from class java.awt.image.RGBImageFilter
filterIndexColorModel, filterRGBPixels, setColorModel, setPixels, setPixels, substituteColorModel
 
Methods inherited from class java.awt.image.ImageFilter
clone, getFilterInstance, imageComplete, resendTopDownLeftRight, setDimensions, setHints, setProperties
 
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

GrayFilter

public GrayFilter(boolean b,
                  int p)
Create a GrayFilter. If b is true then brighten. Also, indicate how much gray.

Parameters:
b - if brighten
p - percent of gray, 0 - 100
Method Detail

createDisabledImage

public static Image createDisabledImage(Image src)
Create grayed image

Parameters:
src - image to gray
Returns:
a grayed image

filterRGB

public int filterRGB(int x,
                     int y,
                     int rgb)
Filter RGB to gray

Specified by:
filterRGB in class RGBImageFilter
Parameters:
x - x-coordinate
y - y-coordinate
rgb - color