org.apache.poi.hwpf.model

Class TextPieceTable

java.lang.Object

org.apache.poi.hwpf.model.TextPieceTable

All Implemented Interfaces:

CharIndexTranslator

Direct Known Subclasses:

OldTextPieceTable

@Internal
public class TextPieceTable
extends java.lang.Object
implements CharIndexTranslator

The piece table for matching up character positions to bits of text. This mostly works in bytes, but the TextPieces themselves work in characters. This does the icky convertion.

Author:

Ryan Ackley

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	TextPieceTable.FCComparator

Field Summary

Fields

Modifier and Type	Field and Description
protected java.util.ArrayList<TextPiece>	_textPieces
protected java.util.ArrayList<TextPiece>	_textPiecesFCOrder

Constructor Summary

Constructors

Constructor and Description
TextPieceTable()
TextPieceTable(byte[] documentStream, byte[] tableStream, int offset, int size, int fcMin)

Method Summary

Modifier and Type	Method and Description
void	add(TextPiece piece)
int	adjustForInsert(int listIndex, int length) Adjust all the text piece after inserting some text into one of them
boolean	equals(java.lang.Object o)
int	getByteIndex(int charPos) Calculates the byte index of the given char index.
int	getCharIndex(int bytePos) Deprecated.
int	getCharIndex(int startBytePos, int startCP) Deprecated.
int[][]	getCharIndexRanges(int startBytePosInclusive, int endBytePosExclusive) Finds character ranges that includes specified byte range.
int	getCpMin()
protected int	getEncodingMultiplier(TextPiece textPiece)
java.lang.StringBuilder	getText()
java.util.List<TextPiece>	getTextPieces()
int	hashCode()
boolean	isIndexInTable(int bytePos) Check if index is in table
int	lookIndexBackward(int startBytePos) Return last index <= bytePos that is in table
int	lookIndexForward(int startBytePos) Return first index >= bytePos that is in table
protected TextPiece	newTextPiece(int nodeStartChars, int nodeEndChars, byte[] buf, PieceDescriptor pd)
byte[]	writeTo(java.io.ByteArrayOutputStream docStream)

Methods inherited from class java.lang.Object

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

Field Detail

_textPieces

protected java.util.ArrayList<TextPiece> _textPieces

_textPiecesFCOrder

protected java.util.ArrayList<TextPiece> _textPiecesFCOrder

Constructor Detail

TextPieceTable

public TextPieceTable()

TextPieceTable

public TextPieceTable(byte[] documentStream,
                      byte[] tableStream,
                      int offset,
                      int size,
                      int fcMin)

Method Detail

newTextPiece

protected TextPiece newTextPiece(int nodeStartChars,
                                 int nodeEndChars,
                                 byte[] buf,
                                 PieceDescriptor pd)

add

public void add(TextPiece piece)

adjustForInsert

public int adjustForInsert(int listIndex,
                           int length)

Adjust all the text piece after inserting some text into one of them

Parameters:

listIndex - The TextPiece that had characters inserted into

length - The number of characters inserted

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

getByteIndex

public int getByteIndex(int charPos)

Description copied from interface: CharIndexTranslator

Calculates the byte index of the given char index.

Specified by:

getByteIndex in interface CharIndexTranslator

Parameters:

charPos - The char position

Returns:

The byte index

getCharIndex

@Deprecated
public int getCharIndex(int bytePos)

Deprecated.

getCharIndex

@Deprecated
public int getCharIndex(int startBytePos,
                                    int startCP)

Deprecated.

getCharIndexRanges

public int[][] getCharIndexRanges(int startBytePosInclusive,
                                  int endBytePosExclusive)

Description copied from interface: CharIndexTranslator

Finds character ranges that includes specified byte range.

Specified by:

getCharIndexRanges in interface CharIndexTranslator

Parameters:

startBytePosInclusive - start byte range

endBytePosExclusive - end byte range

getEncodingMultiplier

protected int getEncodingMultiplier(TextPiece textPiece)

getCpMin

public int getCpMin()

getText

public java.lang.StringBuilder getText()

getTextPieces

public java.util.List<TextPiece> getTextPieces()

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

isIndexInTable

public boolean isIndexInTable(int bytePos)

Description copied from interface: CharIndexTranslator

Check if index is in table

Specified by:

isIndexInTable in interface CharIndexTranslator

Returns:

true if index in table, false if not

lookIndexBackward

public int lookIndexBackward(int startBytePos)

Description copied from interface: CharIndexTranslator

Return last index <= bytePos that is in table

Specified by:

lookIndexBackward in interface CharIndexTranslator

Returns:

last index less of equal to bytePos that is in table

lookIndexForward

public int lookIndexForward(int startBytePos)

Description copied from interface: CharIndexTranslator

Return first index >= bytePos that is in table

Specified by:

lookIndexForward in interface CharIndexTranslator

Returns:

first index greater or equal to bytePos that is in table

writeTo

public byte[] writeTo(java.io.ByteArrayOutputStream docStream)
               throws java.io.IOException

Throws:

java.io.IOException