Package org.apache.pdfbox.jbig2.segments

Class PageInformation

java.lang.Object

org.apache.pdfbox.jbig2.segments.PageInformation

All Implemented Interfaces:

SegmentData

public class PageInformation
extends java.lang.Object
implements SegmentData

This class represents the segment type "Page information", 7.4.8 (page 73).

Field Summary

Fields

Modifier and Type	Field	Description
private int	bitmapHeight	Page bitmap height, four byte, 7.4.8.2
private int	bitmapWidth	Page bitmap width, four byte, 7.4.8.1
private CombinationOperator	combinationOperator
private boolean	combinationOperatorOverrideAllowed	Page segment flags, one byte, 7.4.8.5
private short	defaultPixelValue
private boolean	isLossless
private boolean	isStriped	Page striping information, two byte, 7.4.8.6
private short	maxStripeSize
private boolean	mightContainRefinements
private boolean	requiresAuxiliaryBuffer
private int	resolutionX	Page X resolution, four byte, 7.4.8.3
private int	resolutionY	Page Y resolution, four byte, 7.4.8.4
private SubInputStream	subInputStream

Constructor Summary

Constructors

Constructor	Description
PageInformation()

Method Summary

Modifier and Type	Method	Description
protected int	getBitmapHeight()
protected int	getBitmapWidth()
CombinationOperator	getCombinationOperator()
short	getDefaultPixelValue()
int	getHeight()
short	getMaxStripeSize()
int	getResolutionX()
int	getResolutionY()
int	getWidth()
void	init(SegmentHeader header, SubInputStream sis)	Parse the stream and read information of header.
boolean	isAuxiliaryBufferRequired()
boolean	isCombinationOperatorOverrideAllowed()
boolean	isLossless()
boolean	isStriped()
boolean	mightContainRefinements()
private void	parseHeader()
private void	readCombinationOperator()
private void	readCombinationOperatorOverrideAllowed()
private void	readContainsRefinement()
private void	readDefaultPixelvalue()
private void	readIsLossless()
private void	readIsStriped()
private void	readMaxStripeSize()
private void	readRequiresAuxiliaryBuffer()
private void	readResolution()
private void	readWidthAndHeight()

Methods inherited from class java.lang.Object

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

Field Detail

subInputStream

private SubInputStream subInputStream

bitmapWidth

private int bitmapWidth

Page bitmap width, four byte, 7.4.8.1

bitmapHeight

private int bitmapHeight

Page bitmap height, four byte, 7.4.8.2

resolutionX

private int resolutionX

Page X resolution, four byte, 7.4.8.3

resolutionY

private int resolutionY

Page Y resolution, four byte, 7.4.8.4

combinationOperatorOverrideAllowed

private boolean combinationOperatorOverrideAllowed

Page segment flags, one byte, 7.4.8.5

combinationOperator

private CombinationOperator combinationOperator

requiresAuxiliaryBuffer

private boolean requiresAuxiliaryBuffer

defaultPixelValue

private short defaultPixelValue

mightContainRefinements

private boolean mightContainRefinements

isLossless

private boolean isLossless

isStriped

private boolean isStriped

Page striping information, two byte, 7.4.8.6

maxStripeSize

private short maxStripeSize

Constructor Detail

PageInformation

public PageInformation()

Method Detail

parseHeader

private void parseHeader()
                  throws java.io.IOException,
                         InvalidHeaderValueException

Throws:

java.io.IOException

InvalidHeaderValueException

readResolution

private void readResolution()
                     throws java.io.IOException

Throws:

java.io.IOException

readCombinationOperatorOverrideAllowed

private void readCombinationOperatorOverrideAllowed()
                                             throws java.io.IOException

Throws:

java.io.IOException

readRequiresAuxiliaryBuffer

private void readRequiresAuxiliaryBuffer()
                                  throws java.io.IOException

Throws:

java.io.IOException

readCombinationOperator

private void readCombinationOperator()
                              throws java.io.IOException

Throws:

java.io.IOException

readDefaultPixelvalue

private void readDefaultPixelvalue()
                            throws java.io.IOException

Throws:

java.io.IOException

readContainsRefinement

private void readContainsRefinement()
                             throws java.io.IOException

Throws:

java.io.IOException

readIsLossless

private void readIsLossless()
                     throws java.io.IOException

Throws:

java.io.IOException

readIsStriped

private void readIsStriped()
                    throws java.io.IOException

Throws:

java.io.IOException

readMaxStripeSize

private void readMaxStripeSize()
                        throws java.io.IOException

Throws:

java.io.IOException

readWidthAndHeight

private void readWidthAndHeight()
                         throws java.io.IOException

Throws:

java.io.IOException

init

public void init(SegmentHeader header,
                 SubInputStream sis)
          throws InvalidHeaderValueException,
                 java.io.IOException

Description copied from interface: SegmentData

Parse the stream and read information of header.

Specified by:

init in interface SegmentData

Parameters:

header - - The segments' header (to make referred-to segments available in data part).

sis - - Wrapped ImageInputStream into SubInputStream.

Throws:

InvalidHeaderValueException - if the segment header value is invalid

java.io.IOException - if an underlying IO operation fails

getWidth

public int getWidth()

getHeight

public int getHeight()

getResolutionX

public int getResolutionX()

getResolutionY

public int getResolutionY()

getDefaultPixelValue

public short getDefaultPixelValue()

isCombinationOperatorOverrideAllowed

public boolean isCombinationOperatorOverrideAllowed()

getCombinationOperator

public CombinationOperator getCombinationOperator()

isStriped

public boolean isStriped()

getMaxStripeSize

public short getMaxStripeSize()

isAuxiliaryBufferRequired

public boolean isAuxiliaryBufferRequired()

mightContainRefinements

public boolean mightContainRefinements()

isLossless

public boolean isLossless()

getBitmapWidth

protected int getBitmapWidth()

getBitmapHeight

protected int getBitmapHeight()