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.
- Since:
- 1.2
Field Summary
Fields declared in class java.awt.image.RGBImageFilter
canFilterIndexColorModel, newmodel, origmodel
Fields declared in class java.awt.image.ImageFilter
consumer
Fields declared in interface java.awt.image.ImageConsumer
COMPLETESCANLINES, IMAGEABORTED, IMAGEERROR, RANDOMPIXELORDER, SINGLEFRAME, SINGLEFRAMEDONE, SINGLEPASS, STATICIMAGEDONE, TOPDOWNLEFTRIGHT
Constructor Summary
Constructor | Description |
---|---|
GrayFilter(boolean b,
int p) | Constructs a GrayFilter object that filters a color image to a grayscale image. |
Method Summary
Modifier and Type | Method | Description |
---|---|---|
static Image | createDisabledImage(Image i) | Creates a disabled image |
int | filterRGB(int x,
int y,
int rgb) | Overrides |
Methods declared in class java.awt.image.RGBImageFilter
filterIndexColorModel, filterRGBPixels, setColorModel, setPixels, setPixels, substituteColorModel
Methods declared in class java.awt.image.ImageFilter
clone, getFilterInstance, imageComplete, resendTopDownLeftRight, setDimensions, setHints, setProperties
Methods declared in class java.lang.Object
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
- anImage
to be created as disabled - Returns:
- the new grayscale image created from
i
filterRGB
public int filterRGB(int x, int y, int rgb)
Overrides RGBImageFilter.filterRGB
.
- Specified by:
-
filterRGB
in classRGBImageFilter
- Parameters:
-
x
- the X coordinate of the pixel -
y
- the Y coordinate of the pixel -
rgb
- the integer pixel representation in the default RGB color model - Returns:
- a filtered pixel in the default RGB color model.
- See Also:
-
ColorModel.getRGBdefault()
,RGBImageFilter.filterRGBPixels(int, int, int, int, int[], int, int)