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Class java.awt.image.ColorModel

java.lang.Object
   |
   +----java.awt.image.ColorModel

public abstract class ColorModel
extends Object

A class that encapsulates the methods for translating from pixel values to alpha, red, green, and blue color components for an image. This class is abstract.

See Also:: IndexColorModel, DirectColorModel

pixel_bits

ColorModel(int): Constructs a ColorModel which describes a pixel of the specified number of bits.

finalize(): Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
getAlpha(int): The subclass must provide a function which provides the alpha color compoment for the specified pixel.
getBlue(int): The subclass must provide a function which provides the blue color compoment for the specified pixel.
getGreen(int): The subclass must provide a function which provides the green color compoment for the specified pixel.
getPixelSize(): Returns the number of bits per pixel described by this ColorModel.
getRed(int): The subclass must provide a function which provides the red color compoment for the specified pixel.
getRGB(int): Returns the color of the pixel in the default RGB color model.
getRGBdefault(): Return a ColorModel which describes the default format for integer RGB values used throughout the AWT image interfaces.

pixel_bits

 protected int pixel_bits

ColorModel

 public ColorModel(int bits)

Constructs a ColorModel which describes a pixel of the specified number of bits.

getRGBdefault

 public static ColorModel getRGBdefault()

Return a ColorModel which describes the default format for integer RGB values used throughout the AWT image interfaces. The format for the RGB values is an integer with 8 bits each of alpha, red, green, and blue color components ordered correspondingly from the most significant byte to the least significant byte, as in: 0xAARRGGBB

getPixelSize

 public int getPixelSize()

Returns the number of bits per pixel described by this ColorModel.

getRed

 public abstract int getRed(int pixel)

The subclass must provide a function which provides the red color compoment for the specified pixel.

Returns:: The red color component ranging from 0 to 255

getGreen

 public abstract int getGreen(int pixel)

The subclass must provide a function which provides the green color compoment for the specified pixel.

Returns:: The green color component ranging from 0 to 255

getBlue

 public abstract int getBlue(int pixel)

The subclass must provide a function which provides the blue color compoment for the specified pixel.

Returns:: The blue color component ranging from 0 to 255

getAlpha

 public abstract int getAlpha(int pixel)

The subclass must provide a function which provides the alpha color compoment for the specified pixel.

Returns:: The alpha transparency value ranging from 0 to 255

getRGB

 public int getRGB(int pixel)

Returns the color of the pixel in the default RGB color model.

See Also:: getRGBdefault

finalize

 public void finalize()

Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.

Overrides:: finalize in class Object

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