com.twelvemonkeys.imageio.color.DiscreteAlphaIndexColorModel

All Implemented Interfaces:: Transparency

public final class DiscreteAlphaIndexColorModel extends ColorModel

This class represents a hybrid between an IndexColorModel and a ComponentColorModel, having both a color map and a full, discrete alpha channel and/or one or more "extra" channels. The color map entries are assumed to be fully opaque and should have no transparent index.

ColorSpace will always be the default sRGB color space (as with IndexColorModel).

Component order is always I, A, X₁, X₂... X_n, where I is a palette index, A is the alpha value and X_n are extra samples (ignored for display).

See Also:

Field Summary

Fields inherited from class java.awt.image.ColorModel
pixel_bits, transferType

Fields inherited from interface java.awt.Transparency
BITMASK, OPAQUE, TRANSLUCENT
Constructor Summary

Constructors

Constructor

Description

DiscreteAlphaIndexColorModel(IndexColorModel icm)

Creates a DiscreteAlphaIndexColorModel, delegating color map look-ups to the given IndexColorModel.

DiscreteAlphaIndexColorModel(IndexColorModel icm, int extraSamples, boolean hasAlpha)

Creates a DiscreteAlphaIndexColorModel, delegating color map look-ups to the given IndexColorModel.
Method Summary

Modifier and Type

Method

Description

SampleModel

createCompatibleSampleModel(int w, int h)

WritableRaster

createCompatibleWritableRaster(int w, int h)

boolean

equals(Object obj)

int

getAlpha(int pixel)

int

getAlpha(Object inData)

int

getBlue(int pixel)

int

getBlue(Object inData)

int

getGreen(int pixel)

int

getGreen(Object inData)

int

getNumComponents()

int

getRed(int pixel)

int

getRed(Object inData)

boolean

isCompatibleRaster(Raster raster)

boolean

isCompatibleSampleModel(SampleModel sm)

String

toString()

Methods inherited from class java.awt.image.ColorModel
coerceData, finalize, getAlphaRaster, getColorSpace, getComponents, getComponents, getComponentSize, getComponentSize, getDataElement, getDataElement, getDataElements, getDataElements, getDataElements, getNormalizedComponents, getNormalizedComponents, getNumColorComponents, getPixelSize, getRGB, getRGB, getRGBdefault, getTransferType, getTransparency, getUnnormalizedComponents, hasAlpha, hashCode, isAlphaPremultiplied

Methods inherited from class java.lang.Object
clone, getClass, notify, notifyAll, wait, wait, wait

Constructor Details
- DiscreteAlphaIndexColorModel
  
  public DiscreteAlphaIndexColorModel(IndexColorModel icm)
  
  Creates a DiscreteAlphaIndexColorModel, delegating color map look-ups to the given IndexColorModel.
  
  Parameters:
  
  icm - The IndexColorModel delegate. Color map entries are assumed to be fully opaque, any transparency or transparent index will be ignored.
- DiscreteAlphaIndexColorModel
  
  public DiscreteAlphaIndexColorModel(IndexColorModel icm, int extraSamples, boolean hasAlpha)
  
  Creates a DiscreteAlphaIndexColorModel, delegating color map look-ups to the given IndexColorModel.
  
  Parameters:
  
  icm - The IndexColorModel delegate. Color map entries are assumed to be fully opaque, any transparency or transparent index will be ignored.
  
  extraSamples - the number of extra samples in the color model.
  
  hasAlpha - true if the extra samples contains alpha, otherwise false.
Method Details
- getNumComponents
  
  public int getNumComponents()
  
  Overrides:
  
  getNumComponents in class ColorModel
- getRed
  
  public int getRed(int pixel)
  
  Specified by:
  
  getRed in class ColorModel
- getGreen
  
  public int getGreen(int pixel)
  
  Specified by:
  
  getGreen in class ColorModel
- getBlue
  
  public int getBlue(int pixel)
  
  Specified by:
  
  getBlue in class ColorModel
- getAlpha
  
  public int getAlpha(int pixel)
  
  Specified by:
  
  getAlpha in class ColorModel
- getRed
  
  public int getRed(Object inData)
  
  Overrides:
  
  getRed in class ColorModel
- getGreen
  
  public int getGreen(Object inData)
  
  Overrides:
  
  getGreen in class ColorModel
- getBlue
  
  public int getBlue(Object inData)
  
  Overrides:
  
  getBlue in class ColorModel
- getAlpha
  
  public int getAlpha(Object inData)
  
  Overrides:
  
  getAlpha in class ColorModel
- createCompatibleSampleModel
  
  public SampleModel createCompatibleSampleModel(int w, int h)
  
  Overrides:
  
  createCompatibleSampleModel in class ColorModel
- isCompatibleSampleModel
  
  public boolean isCompatibleSampleModel(SampleModel sm)
  
  Overrides:
  
  isCompatibleSampleModel in class ColorModel
- createCompatibleWritableRaster
  
  public WritableRaster createCompatibleWritableRaster(int w, int h)
  
  Overrides:
  
  createCompatibleWritableRaster in class ColorModel
- isCompatibleRaster
  
  public boolean isCompatibleRaster(Raster raster)
  
  Overrides:
  
  isCompatibleRaster in class ColorModel
- equals
  
  public boolean equals(Object obj)
  
  Overrides:
  
  equals in class ColorModel
- toString
  
  public String toString()
  
  Overrides:
  
  toString in class ColorModel

Class DiscreteAlphaIndexColorModel

Field Summary

Fields inherited from class java.awt.image.ColorModel

Fields inherited from interface java.awt.Transparency

Constructor Summary

Method Summary

Methods inherited from class java.awt.image.ColorModel

Methods inherited from class java.lang.Object

Constructor Details

DiscreteAlphaIndexColorModel

DiscreteAlphaIndexColorModel

Method Details

getNumComponents

getRed

getGreen

getBlue

getAlpha

getRed

getGreen

getBlue

getAlpha

createCompatibleSampleModel

isCompatibleSampleModel

createCompatibleWritableRaster

isCompatibleRaster

equals

toString