javax.swing

Class GrayFilter

java.lang.Object

java.awt.image.ImageFilter

java.awt.image.RGBImageFilter

javax.swing.GrayFilter

All Implemented Interfaces:

java.awt.image.ImageConsumer, java.lang.Cloneable

public class GrayFilter
extends java.awt.image.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

Constructors

Constructor and Description
GrayFilter(boolean b, int p) Create a GrayFilter.

Method Summary

Methods

Modifier and Type	Method and Description
static java.awt.Image	createDisabledImage(java.awt.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 java.awt.Image createDisabledImage(java.awt.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 java.awt.image.RGBImageFilter

Parameters:

x - x-coordinate

y - y-coordinate

rgb - color