Package com.twelvemonkeys.imageio.plugins.pcx

Class PCXImageReader

java.lang.Object

javax.imageio.ImageReader

com.twelvemonkeys.imageio.ImageReaderBase

com.twelvemonkeys.imageio.plugins.pcx.PCXImageReader

public final class PCXImageReader
extends ImageReaderBase

ImageReader for ZSoft PC Paintbrush (PCX) format.

See Also:

PCX Graphics

Field Summary

Fields

Modifier and Type	Field	Description
(package private) static boolean	DEBUG
private static javax.imageio.ImageTypeSpecifier	GRAYSCALE	8 bit ImageTypeSpecifer used for reading bitplane images.
private PCXHeader	header
private boolean	readPalette
private java.awt.image.IndexColorModel	vgaPalette

Fields inherited from class com.twelvemonkeys.imageio.ImageReaderBase

imageInput

Fields inherited from class javax.imageio.ImageReader

availableLocales, ignoreMetadata, input, locale, minIndex, originatingProvider, progressListeners, seekForwardOnly, updateListeners, warningListeners, warningLocales

Constructor Summary

Constructors

Constructor	Description
PCXImageReader(javax.imageio.spi.ImageReaderSpi provider)

Method Summary

Modifier and Type	Method	Description
private java.awt.image.Raster	clipRowToRect(java.awt.image.Raster raster, java.awt.Rectangle rect, int[] bands, int xSub)
private java.awt.image.WritableRaster	clipToRect(java.awt.image.WritableRaster raster, java.awt.Rectangle rect, int[] bands)
private int[]	createIndices(int bands, int increment)
int	getHeight(int imageIndex)
javax.imageio.metadata.IIOMetadata	getImageMetadata(int imageIndex)	Default implementation that always returns null.
java.util.Iterator<javax.imageio.ImageTypeSpecifier>	getImageTypes(int imageIndex)
javax.imageio.ImageTypeSpecifier	getRawImageType(int imageIndex)
private java.awt.image.IndexColorModel	getVGAPalette()
int	getWidth(int imageIndex)
static void	main(java.lang.String[] args)
java.awt.image.BufferedImage	read(int imageIndex, javax.imageio.ImageReadParam param)
private void	readHeader()
private void	readRowByte(java.io.DataInput input, java.awt.Rectangle srcRegion, int xSub, int ySub, byte[] rowDataByte, int off, int length, java.awt.image.WritableRaster destChannel, java.awt.image.Raster srcChannel, int y)
protected void	resetMembers()	Resets all member variables.
private static long	skipToEOF(javax.imageio.stream.ImageInputStream stream)

Methods inherited from class com.twelvemonkeys.imageio.ImageReaderBase

assertInput, checkBounds, dispose, fakeAOI, fakeSubsampling, getDestination, getNumImages, getStreamMetadata, hasExplicitDestination, reset, setInput, showIt

Methods inherited from class javax.imageio.ImageReader

abort, abortRequested, addIIOReadProgressListener, addIIOReadUpdateListener, addIIOReadWarningListener, canReadRaster, checkReadParamBandSettings, clearAbortRequest, computeRegions, getAspectRatio, getAvailableLocales, getDefaultReadParam, getFormatName, getImageMetadata, getInput, getLocale, getMinIndex, getNumThumbnails, getOriginatingProvider, getSourceRegion, getStreamMetadata, getThumbnailHeight, getThumbnailWidth, getTileGridXOffset, getTileGridYOffset, getTileHeight, getTileWidth, hasThumbnails, isIgnoringMetadata, isImageTiled, isRandomAccessEasy, isSeekForwardOnly, processImageComplete, processImageProgress, processImageStarted, processImageUpdate, processPassComplete, processPassStarted, processReadAborted, processSequenceComplete, processSequenceStarted, processThumbnailComplete, processThumbnailPassComplete, processThumbnailPassStarted, processThumbnailProgress, processThumbnailStarted, processThumbnailUpdate, processWarningOccurred, processWarningOccurred, read, readAll, readAll, readAsRenderedImage, readerSupportsThumbnails, readRaster, readThumbnail, readTile, readTileRaster, removeAllIIOReadProgressListeners, removeAllIIOReadUpdateListeners, removeAllIIOReadWarningListeners, removeIIOReadProgressListener, removeIIOReadUpdateListener, removeIIOReadWarningListener, setInput, setInput, setLocale

Methods inherited from class java.lang.Object

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

Field Detail

DEBUG

static final boolean DEBUG

GRAYSCALE

private static final javax.imageio.ImageTypeSpecifier GRAYSCALE

8 bit ImageTypeSpecifer used for reading bitplane images.

header

private PCXHeader header

readPalette

private boolean readPalette

vgaPalette

private java.awt.image.IndexColorModel vgaPalette

Constructor Detail

PCXImageReader

public PCXImageReader(javax.imageio.spi.ImageReaderSpi provider)

Method Detail

resetMembers

protected void resetMembers()

Description copied from class: ImageReaderBase

Resets all member variables. This method is by default invoked from:

• ImageReaderBase.setInput(Object, boolean, boolean)
• ImageReaderBase.dispose()
• ImageReaderBase.reset()

Specified by:

resetMembers in class ImageReaderBase

getWidth

public int getWidth(int imageIndex)
             throws java.io.IOException

Specified by:

getWidth in class javax.imageio.ImageReader

Throws:

java.io.IOException

getHeight

public int getHeight(int imageIndex)
              throws java.io.IOException

Specified by:

getHeight in class javax.imageio.ImageReader

Throws:

java.io.IOException

getImageTypes

public java.util.Iterator<javax.imageio.ImageTypeSpecifier> getImageTypes(int imageIndex)
                                                                   throws java.io.IOException

Specified by:

getImageTypes in class javax.imageio.ImageReader

Throws:

java.io.IOException

getRawImageType

public javax.imageio.ImageTypeSpecifier getRawImageType(int imageIndex)
                                                 throws java.io.IOException

Overrides:

getRawImageType in class javax.imageio.ImageReader

Throws:

java.io.IOException

createIndices

private int[] createIndices(int bands,
                            int increment)

read

public java.awt.image.BufferedImage read(int imageIndex,
                                         javax.imageio.ImageReadParam param)
                                  throws java.io.IOException

Specified by:

read in class javax.imageio.ImageReader

Throws:

java.io.IOException

readRowByte

private void readRowByte(java.io.DataInput input,
                         java.awt.Rectangle srcRegion,
                         int xSub,
                         int ySub,
                         byte[] rowDataByte,
                         int off,
                         int length,
                         java.awt.image.WritableRaster destChannel,
                         java.awt.image.Raster srcChannel,
                         int y)
                  throws java.io.IOException

Throws:

java.io.IOException

clipRowToRect

private java.awt.image.Raster clipRowToRect(java.awt.image.Raster raster,
                                            java.awt.Rectangle rect,
                                            int[] bands,
                                            int xSub)

clipToRect

private java.awt.image.WritableRaster clipToRect(java.awt.image.WritableRaster raster,
                                                 java.awt.Rectangle rect,
                                                 int[] bands)

readHeader

private void readHeader()
                 throws java.io.IOException

Throws:

java.io.IOException

getImageMetadata

public javax.imageio.metadata.IIOMetadata getImageMetadata(int imageIndex)
                                                    throws java.io.IOException

Description copied from class: ImageReaderBase

Default implementation that always returns null.

Overrides:

getImageMetadata in class ImageReaderBase

Parameters:

imageIndex - ignored, unless overridden

Returns:

null, unless overridden

Throws:

java.io.IOException - never, unless overridden.

getVGAPalette

private java.awt.image.IndexColorModel getVGAPalette()
                                              throws java.io.IOException

Throws:

java.io.IOException

skipToEOF

private static long skipToEOF(javax.imageio.stream.ImageInputStream stream)
                       throws java.io.IOException

Throws:

java.io.IOException

main

public static void main(java.lang.String[] args)
                 throws java.io.IOException

Throws:

java.io.IOException