DirectColorModel

Name

Description

The DirectColorModel class provides a ColorModel that specifies a translation between pixels and alpha, red, green, and blue component values, where the color values are embedded directly within the pixel.

Class Definition

public class java.awt.image.DirectColorModel extends java.awt.image.ColorModel {
 // Constructors public DirectColorModel (int bits, int redMask, int greenMask, int blueMask);
public DirectColorModel (int bits, int redMask, int greenMask, int blueMask, int alphaMask); // Instance Methods public final int getAlpha (int pixel);
public final int getAlphaMask();
public final int getBlue (int pixel);
public final int getBlueMask();
public final int getGreen (int pixel);
public final int getGreenMask() public final int getRed (int pixel);
public final int getRedMask();
public final int getRGB (int pixel);
}

Constructors

DirectColorModel

public DirectColorModel (int bits, int redMask, int greenMask, int blueMask)

• Parameters
• • bits
  • The number of bits required per pixel of an image using this model.
  • redMask
  • The location of the red component of a pixel.
  • greenMask
  • The location of the green component of a pixel.
  • blueMask
  • The location of the blue component of a pixel.
• Throws
• • IllegalArgumentException
  • If the mask bits are not contiguous or overlap.
• Description
• Constructs a DirectColorModel object with the given size and color masks; the alpha (transparency) component is not used.

public DirectColorModel (int bits, int redMask, int greenMask, int blueMask, int alphaMask)

• Parameters
• • bits
  • The number of bits required per pixel of an image using this model.
  • redMask
  • The location of the red component of a pixel.
  • greenMask
  • The location of the green component of a pixel.
  • blueMask
  • The location of the blue component of a pixel.
  • alphaMask
  • The location of the alpha component of a pixel.
• Throws
• • IllegalArgumentException
  • If the mask bits are not contiguous or overlap.
• Description
• Constructs a DirectColorModel object with the given size and color masks.

Instance Methods

getAlpha

public final int getAlpha (int pixel)

• Parameters
• • pixel
  • A pixel encoded with this ColorModel.
• Returns
• The current alpha setting of the pixel.
• Overrides
• ColorModel.getAlpha(int)

getAlphaMask

public final int getAlphaMask()

• Returns
• The current alpha mask setting of the color model.

getBlue

public final int getBlue (int pixel)

• Parameters
• • pixel
  • A pixel encoded with this ColorModel.
• Returns
• The current blue setting of the pixel.
• Overrides
• ColorModel.getBlue(int)

getBlueMask

public final int getBlueMask()

• Returns
• The current blue mask setting of the color model.

getGreen

public final int getGreen (int pixel)

• Parameters
• • pixel
  • A pixel encoded with this ColorModel.
• Returns
• The current green setting of the pixel.
• Overrides
• ColorModel.getGreen(int)

getGreenMask

public final int getGreenMask()

• Returns
• The current green mask setting of the color model.

getRed

public final int getRed (int pixel)

• Parameters
• • pixel
  • A pixel encoded with this ColorModel.
• Returns
• The current red setting of the pixel.
• Overrides
• ColorModel.getRed(int)

getRedMask

public final int getRedMask()

• Returns
• The current red mask setting of the color model.

getRGB

public final int getRGB (int pixel)

• Parameters
• • pixel
  • A pixel encoded with this ColorModel.
• Returns
• The current combined red, green, and blue settings of the pixel.
• Overrides
• ColorModel.getRGB(int)
• Description
• Gets the color of pixel in the default RGB color model.

See Also

ColorModel