JavaTM 2 Platform
Standard Edition

Class GrayFilter


public class GrayFilter
extends RGBImageFilter

An image filter that "disables" an image by turning it into a grayscale image, and brightening the pixels in the image. Used by buttons to create an image for a disabled button.

Fields inherited from class java.awt.image.RGBImageFilter
canFilterIndexColorModel, newmodel, origmodel
Fields inherited from class java.awt.image.ImageFilter
Constructor Summary
GrayFilter(boolean b, int p)
          Constructs a GrayFilter object that filters a color image to a grayscale image.
Method Summary
static Image createDisabledImage(Image i)
          Creates a disabled image
 int filterRGB(int x, int y, int rgb)
          Overrides RGBImageFilter.filterRGB.
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


public GrayFilter(boolean b,
                  int p)
Constructs a GrayFilter object that filters a color image to a grayscale image. Used by buttons to create disabled ("grayed out") button images.
b - a boolean -- true if the pixels should be brightened
p - an int in the range 0..100 that determines the percentage of gray, where 100 is the darkest gray, and 0 is the lightest
Method Detail


public static Image createDisabledImage(Image i)
Creates a disabled image


public int filterRGB(int x,
                     int y,
                     int rgb)
Overrides RGBImageFilter.filterRGB.
filterRGB in class RGBImageFilter
Tags copied from class: RGBImageFilter
See Also:
ColorModel.getRGBdefault(), RGBImageFilter.filterRGBPixels(int, int, int, int, int[], int, int)

JavaTM 2 Platform
Standard Edition

Submit a bug or feature
Java, Java 2D, and JDBC are a trademarks or registered trademarks of Sun Microsystems, Inc. in the US and other countries.
Copyright 1993-1999 Sun Microsystems, Inc. 901 San Antonio Road,
Palo Alto, California, 94303, U.S.A. All Rights Reserved.