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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

Variable Index

 o pixel_bits

Constructor Index

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

Method Index

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

Variables

 o pixel_bits
 protected int pixel_bits

Constructors

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

Methods

 o 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

 o getPixelSize
 public int getPixelSize()
Returns the number of bits per pixel described by this ColorModel.

 o 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
 o 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
 o 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
 o 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
 o getRGB
 public int getRGB(int pixel)
Returns the color of the pixel in the default RGB color model.

See Also:
getRGBdefault
 o 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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