- java.lang.Object
- java.awt.image.ImageFilter
- java.awt.image.RGBImageFilter
- javax.swing.GrayFilter
- All Implemented Interfaces:
ImageConsumer,Cloneable
public classGrayFilterextendsRGBImageFilter
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 inherited from interface java.awt.image.ImageConsumer
COMPLETESCANLINES,IMAGEABORTED,IMAGEERROR,RANDOMPIXELORDER,SINGLEFRAME,SINGLEFRAMEDONE,SINGLEPASS,STATICIMAGEDONE,TOPDOWNLEFTRIGHT
Fields inherited from class java.awt.image.ImageFilter
consumer
Fields inherited from class java.awt.image.RGBImageFilter
canFilterIndexColorModel,newmodel,origmodel
Constructor Summary
Constructors Constructor Description GrayFilter(boolean b, int p)Constructs a GrayFilter object that filters a color image to a grayscale image.
Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description staticImagecreateDisabledImage(Image i)Creates a disabled imageintfilterRGB(int x, int y, int rgb)OverridesRGBImageFilter.filterRGB.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
Methods inherited from class java.awt.image.RGBImageFilter
filterIndexColorModel,filterRGBPixels,setColorModel,setPixels,setPixels,substituteColorModel
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 brightenedp- 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- anImageto be created as disabled- Returns:
- the new grayscale image created from
i
filterRGB
public int filterRGB(int x, int y, int rgb)
OverridesRGBImageFilter.filterRGB.- Specified by:
filterRGBin classRGBImageFilter- Parameters:
x- the X coordinate of the pixely- the Y coordinate of the pixelrgb- 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)