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org.ydp.jai
Class PNGEncodeParam.RGB  

java.lang.Object
  org.ydp.jai.PNGEncodeParam
      org.ydp.jai.PNGEncodeParam.RGB

All Implemented Interfaces:

java.lang.Cloneable, ImageDecodeParam, ImageEncodeParam, java.io.Serializable

Enclosing class:

PNGEncodeParam

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public static class PNGEncodeParam.RGB

extends PNGEncodeParam

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Nested Class Summary

 

Nested classes inherited from class org.ydp.jai.PNGEncodeParam

PNGEncodeParam.Gray, PNGEncodeParam.Palette, PNGEncodeParam.RGB

 

Field Summary
private  int[]	backgroundRGB
private  boolean	backgroundSet
private  int[]	transparency

 

Fields inherited from class org.ydp.jai.PNGEncodeParam

bitDepth, bitDepthSet, chunkData, chunkType, INTENT_ABSOLUTE, INTENT_PERCEPTUAL, INTENT_RELATIVE, INTENT_SATURATION, PNG_FILTER_AVERAGE, PNG_FILTER_NONE, PNG_FILTER_PAETH, PNG_FILTER_SUB, PNG_FILTER_UP, transparencySet

 

Constructor Summary

PNGEncodeParam.RGB()           Constructs an instance of PNGEncodeParam.RGB.

 

Method Summary
int[]	getBackgroundRGB()           Returns the RGB value of the suggested background color.
int[]	getTransparentRGB()           Returns the RGB value to be used to denote transparency.
boolean	isBackgroundSet()           Returns true if a 'bKGD' chunk will be output.
void	setBackgroundRGB(int[] rgb)           Sets the RGB value of the suggested background color.
void	setBitDepth(int bitDepth)           Sets the desired bit depth for an RGB image.
void	setTransparentRGB(int[] transparentRGB)           Sets the RGB value to be used to denote transparency.
void	unsetBackground()           Suppresses the 'bKGD' chunk from being output.

 

Methods inherited from class org.ydp.jai.PNGEncodeParam

addPrivateChunk, filterRow, getBitDepth, getChromaticity, getCompressedText, getDefaultEncodeParam, getGamma, getICCProfileData, getInterlacing, getModificationTime, getNumPrivateChunks, getPaletteHistogram, getPhysicalDimension, getPrivateChunkData, getPrivateChunkType, getSignificantBits, getSRGBIntent, getSuggestedPalette, getText, isChromaticitySet, isCompressedTextSet, isGammaSet, isICCProfileDataSet, isModificationTimeSet, isPaletteHistogramSet, isPhysicalDimensionSet, isSignificantBitsSet, isSRGBIntentSet, isSuggestedPaletteSet, isTextSet, isTransparencySet, paethPredictor, removeAllPrivateChunks, removeUnsafeToCopyPrivateChunks, setChromaticity, setChromaticity, setCompressedText, setGamma, setICCProfileData, setInterlacing, setModificationTime, setPaletteHistogram, setPhysicalDimension, setPhysicalDimension, setSignificantBits, setSRGBIntent, setSuggestedPalette, setText, unsetBitDepth, unsetChromaticity, unsetCompressedText, unsetGamma, unsetICCProfileData, unsetModificationTime, unsetPaletteHistogram, unsetPhysicalDimension, unsetSignificantBits, unsetSRGBIntent, unsetSuggestedPalette, unsetText, unsetTransparency

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Field Detail

backgroundSet

private boolean backgroundSet

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backgroundRGB

private int[] backgroundRGB

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transparency

private int[] transparency

Constructor Detail

PNGEncodeParam.RGB

public PNGEncodeParam.RGB()

Constructs an instance of PNGEncodeParam.RGB.

Method Detail

unsetBackground

public void unsetBackground()

Suppresses the 'bKGD' chunk from being output.

Overrides:

unsetBackground in class PNGEncodeParam

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isBackgroundSet

public boolean isBackgroundSet()

Returns true if a 'bKGD' chunk will be output.

Overrides:

isBackgroundSet in class PNGEncodeParam

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setBitDepth

public void setBitDepth(int bitDepth)

Sets the desired bit depth for an RGB image. The bit depth must be 8 or 16.

Specified by:

setBitDepth in class PNGEncodeParam

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setBackgroundRGB

public void setBackgroundRGB(int[] rgb)

Sets the RGB value of the suggested background color. The rgb parameter should have 3 entries.

The 'bKGD' chunk will encode this information.

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getBackgroundRGB

public int[] getBackgroundRGB()

Returns the RGB value of the suggested background color.

If the background color has not previously been set, or has been unset, an IllegalStateException will be thrown.

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setTransparentRGB

public void setTransparentRGB(int[] transparentRGB)

Sets the RGB value to be used to denote transparency.

Setting this attribute will cause the alpha channel of the input image to be ignored.

The 'tRNS' chunk will encode this information.

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getTransparentRGB

public int[] getTransparentRGB()

Returns the RGB value to be used to denote transparency.

If the transparent color has not previously been set, or has been unset, an IllegalStateException will be thrown.

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