com.itextpdf.text.pdf
Class LZWDecoder

java.lang.Object
  com.itextpdf.text.pdf.LZWDecoder

public class LZWDecoder
extends Object

A class for performing LZW decoding.

Constructor Summary

LZWDecoder()

Method Summary

void	addStringToTable(byte[] string) Add a new string to the string table.
void	addStringToTable(byte[] oldString, byte newString) Add a new string to the string table.
byte[]	composeString(byte[] oldString, byte newString) Append newString to the end of oldString.
void	decode(byte[] data, OutputStream uncompData) Method to decode LZW compressed data.
int	getNextCode()
void	initializeStringTable() Initialize the string table.
void	writeString(byte[] string) Write out the string just uncompressed.

Methods inherited from class java.lang.Object

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

Constructor Detail

LZWDecoder

public LZWDecoder()

Method Detail

decode

public void decode(byte[] data,
                   OutputStream uncompData)

Method to decode LZW compressed data.

Parameters:

data - The compressed data.

uncompData - Array to return the uncompressed data in.

initializeStringTable

public void initializeStringTable()

Initialize the string table.

writeString

public void writeString(byte[] string)

Write out the string just uncompressed.

addStringToTable

public void addStringToTable(byte[] oldString,
                             byte newString)

Add a new string to the string table.

addStringToTable

public void addStringToTable(byte[] string)

Add a new string to the string table.

composeString

public byte[] composeString(byte[] oldString,
                            byte newString)

Append newString to the end of oldString.

getNextCode

public int getNextCode()