Class CMapToUnicode

java.lang.Object

com.itextpdf.io.font.cmap.AbstractCMap

com.itextpdf.io.font.cmap.CMapToUnicode

public class CMapToUnicode
extends AbstractCMap

This class represents a CMap file.

Field Summary

Fields

Modifier and Type	Field	Description
private final Map<Integer,char[]>	byteMappings
private final List<byte[]>	codeSpaceRanges
static final CMapToUnicode	EMPTY_CMAP

Constructor Summary

Constructors

Modifier	Constructor	Description
	CMapToUnicode()	Creates a new instance of CMap.
private	CMapToUnicode(boolean emptyCMap)

Method Summary

Modifier and Type	Method	Description
(package private) void	addChar(int cid, char[] uni)
(package private) void	addChar(String mark, CMapObject code)
(package private) void	addCodeSpaceRange(byte[] low, byte[] high)
private int	convertToInt(char[] s)
private char[]	createCharsFromDoubleBytes(byte[] bytes)
private char[]	createCharsFromSingleBytes(byte[] bytes)
IntHashtable	createDirectMapping()
Map<Integer,Integer>	createReverseMapping()
Set<Integer>	getCodes()
List<byte[]>	getCodeSpaceRanges()	Returns a list containing sequential pairs of code space beginning and endings: (begincodespacerange1, endcodespacerange1, begincodespacerange2, endcodespacerange1, ...)
static CMapToUnicode	getIdentity()
boolean	hasByteMappings()	This will tell if this cmap has any two byte mappings.
char[]	lookup(byte[] code)
char[]	lookup(byte[] code, int offset, int length)	This will perform a lookup into the map.
char[]	lookup(int code)

Methods inherited from class AbstractCMap

addRange, decodeStringToByte, getName, getOrdering, getRegistry, getSupplement, setName, setOrdering, setRegistry, setSupplement, toUnicodeString

Methods inherited from class Object

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

Field Details

EMPTY_CMAP

public static final CMapToUnicode EMPTY_CMAP

byteMappings

private final Map<Integer,char[]> byteMappings

codeSpaceRanges

private final List<byte[]> codeSpaceRanges

Constructor Details

CMapToUnicode

private CMapToUnicode(boolean emptyCMap)

CMapToUnicode

public CMapToUnicode()

Creates a new instance of CMap.

Method Details

getIdentity

public static CMapToUnicode getIdentity()

hasByteMappings

public boolean hasByteMappings()

This will tell if this cmap has any two byte mappings.

Returns:

true If there are any two byte mappings, false otherwise.

lookup

public char[] lookup(byte[] code,
 int offset,
 int length)

This will perform a lookup into the map.

Parameters:

code - The code used to lookup.

offset - The offset into the byte array.

length - The length of the data we are getting.

Returns:

The string that matches the lookup.

lookup

public char[] lookup(byte[] code)

lookup

public char[] lookup(int code)

getCodes

public Set<Integer> getCodes()

createDirectMapping

public IntHashtable createDirectMapping()

createReverseMapping

public Map<Integer,Integer> createReverseMapping()

getCodeSpaceRanges

public List<byte[]> getCodeSpaceRanges()

Returns a list containing sequential pairs of code space beginning and endings: (begincodespacerange1, endcodespacerange1, begincodespacerange2, endcodespacerange1, ...)

Returns:

list of byte[] that contain code space ranges

addCodeSpaceRange

void addCodeSpaceRange(byte[] low,
 byte[] high)

Overrides:

addCodeSpaceRange in class AbstractCMap

convertToInt

private int convertToInt(char[] s)

addChar

void addChar(int cid,
 char[] uni)

addChar

void addChar(String mark,
 CMapObject code)

Specified by:

addChar in class AbstractCMap

createCharsFromSingleBytes

private char[] createCharsFromSingleBytes(byte[] bytes)

createCharsFromDoubleBytes

private char[] createCharsFromDoubleBytes(byte[] bytes)