GrayFilter (Java Platform SE 6)

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javax.swing
class GrayFilter

java.lang.Object
  java.awt.image.ImageFilter
      java.awt.image.RGBImageFilter
          javax.swing.GrayFilter

All Implemented Interfaces:: ImageConsumer, Cloneable

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.

Field Summary

Fields inherited from class java.awt.image.RGBImageFilter
`canFilterIndexColorModel, newmodel, origmodel`

Fields inherited from class java.awt.image.ImageFilter
`consumer`

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, 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, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

GrayFilter

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.

Parameters:: 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

createDisabledImage

public static Image createDisabledImage(Image i)

Creates a disabled image

Parameters:: i

filterRGB

public int filterRGB(int x,
                     int y,
                     int rgb)

Overrides RGBImageFilter.filterRGB.

Overrides:: filterRGB in class RGBImageFilter
Parameters:: x; y; rgb