Class java.awt.image.ColorModel 
All Packages  Class Hierarchy  This Package  Previous  Next  Index

Class java.awt.image.ColorModel 

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.

Version:
1.13 07/01/98
Author:
Jim Graham
See Also:
IndexColorModel, DirectColorModel

Variable Index

o pixel_bits

Constructor Index

o java.awt.image.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 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.
o getRed(int)
The subclass must provide a function which provides the red color compoment for the specified pixel.

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

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

See Also:
getRGBdefault
o getRGBdefault 
public static java.awt.image.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 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 
All Packages  Class Hierarchy  This Package  Previous  Next  Index