Class GrayFilter

Implemented Interfaces:
Cloneable, ImageConsumer

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


Fields inherited from interface java.awt.image.ImageConsumer


Constructor Summary

GrayFilter(boolean b, int p)
Create a GrayFilter.

Method Summary

static Image
createDisabledImage(Image src)
Create grayed image
filterRGB(int x, int y, int rgb)
Filter RGB to gray

Methods inherited from class java.awt.image.RGBImageFilter

filterIndexColorModel, filterRGB, filterRGBPixels, setColorModel, setPixels, setPixels, substituteColorModel

Methods inherited from class java.awt.image.ImageFilter

clone, getFilterInstance, imageComplete, resendTopDownLeftRight, setColorModel, setDimensions, setHints, setPixels, setPixels, setProperties

Methods inherited from class java.lang.Object

clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details


public GrayFilter(boolean b,
                  int p)
Create a GrayFilter. If b is true then brighten. Also, indicate how much gray.
b - if brighten
p - percent of gray, 0 - 100

Method Details


public static Image createDisabledImage(Image src)
Create grayed image
src - image to gray
a grayed image


public int filterRGB(int x,
                     int y,
                     int rgb)
Filter RGB to gray
filterRGB in interface RGBImageFilter -- Java class for filtering Pixels to produce Gray Pictures Copyright (C) 1999, 2004 Free Software Foundation, Inc. This file is part of GNU Classpath. GNU Classpath is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GNU Classpath is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Classpath; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version.