org.foray.font.format.ttf
Class TTFTableCMAP

java.lang.Object
  org.foray.font.format.ttf.TTFTableCMAP

public class TTFTableCMAP
extends Object

Class representing a TTF "cmap" (character-to-glyph index mapping) table.

Field Summary

protected static byte	BYTE_BYTES The size, in bytes of the data type "BYTE", that is, 1.
protected static byte	CHAR_BYTES The size, in bytes of the data type "CHAR", that is, 1.
static byte	CMAP_FORMAT_0 Constant indicating that this CMap table is format 0.
static byte	CMAP_FORMAT_12 Constant indicating that this CMap table is format 12.
static byte	CMAP_FORMAT_2 Constant indicating that this CMap table is format 2.
static byte	CMAP_FORMAT_4 Constant indicating that this CMap table is format 4.
static byte	CMAP_FORMAT_6 Constant indicating that this CMap table is format 6.
static byte	CMAP_FORMAT_UNKNOWN Constant indicating that this CMap table is in an unknown format.
protected static int	ENCODING_UCS_4 Constant indicating that the encoding is Unicode UCS-4.
protected static int	ENCODING_UNICODE Constant indicating that the encoding is Unicode.
protected static byte	F2DOT14_BYTES The size, in bytes of the data type "F2DOT14", that is, 2.
protected static byte	FIXED_BYTES The size, in bytes of the data type "FIXED", that is, 4.
protected static byte	FWORD_BYTES The size, in bytes of the data type "FWORD", that is, 2.
protected static byte	LONG_BYTES The size, in bytes of the data type "LONG", that is, 4.
protected static byte	LONG_DATE_TIME_BYTES The size, in bytes of the data type "International Date", that is, 8.
protected static byte	OFFSET_BYTES The size, in bytes of the data type "Offset", that is, 2.
protected static int	PLATFORM_MICROSOFT Constant indicating that the platform is Microsoft.
protected static byte	SHORT_BYTES The size, in bytes of the data type "SHORT", that is, 2.
protected static byte	UFWORD_BYTES The size, in bytes of the data type "UFWORD", that is, 2.
protected static byte	ULONG_BYTES The size, in bytes of the data type "ULONG", that is, 4.
protected static byte	USHORT_BYTES The size, in bytes of the data type "USHORT", that is, 2.

Constructor Summary

TTFTableCMAP(TTFOffsetTableRecord dirEntry)
Constructor.

Method Summary

int	decodeCharacter(int glyphIndex) Decodes a glyph index using the Unicode CMap from this table.
int	encodeCharacter(int codePoint) Encode a specific character using the Unicode CMap from this table.
String	getTableTag() Return the 4-character name of this table, for example, "post" or "glyf".
org.axsl.ps.Cmap	getUnicodeCMap() Returns the Unicode CMap instance parsed from this table.
static TTFTableCMAP	parse(TTFOffsetTableRecord dirEntry, RandomAccessInput raInput, org.axsl.ps.PsServer psServer, String fontPostScriptName) Parse the cmap table.

Methods inherited from class java.lang.Object

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

Field Detail

CMAP_FORMAT_UNKNOWN

public static final byte CMAP_FORMAT_UNKNOWN

Constant indicating that this CMap table is in an unknown format.

See Also:

Constant Field Values

CMAP_FORMAT_0

public static final byte CMAP_FORMAT_0

Constant indicating that this CMap table is format 0.

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Constant Field Values

CMAP_FORMAT_2

public static final byte CMAP_FORMAT_2

Constant indicating that this CMap table is format 2.

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Constant Field Values

CMAP_FORMAT_4

public static final byte CMAP_FORMAT_4

Constant indicating that this CMap table is format 4.

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Constant Field Values

CMAP_FORMAT_6

public static final byte CMAP_FORMAT_6

Constant indicating that this CMap table is format 6.

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Constant Field Values

CMAP_FORMAT_12

public static final byte CMAP_FORMAT_12

Constant indicating that this CMap table is format 12.

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Constant Field Values

PLATFORM_MICROSOFT

protected static final int PLATFORM_MICROSOFT

Constant indicating that the platform is Microsoft.

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Constant Field Values

ENCODING_UNICODE

protected static final int ENCODING_UNICODE

Constant indicating that the encoding is Unicode.

See Also:

Constant Field Values

ENCODING_UCS_4

protected static final int ENCODING_UCS_4

Constant indicating that the encoding is Unicode UCS-4.

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Constant Field Values

BYTE_BYTES

protected static final byte BYTE_BYTES

The size, in bytes of the data type "BYTE", that is, 1.

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Constant Field Values

CHAR_BYTES

protected static final byte CHAR_BYTES

The size, in bytes of the data type "CHAR", that is, 1.

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Constant Field Values

USHORT_BYTES

protected static final byte USHORT_BYTES

The size, in bytes of the data type "USHORT", that is, 2.

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Constant Field Values

SHORT_BYTES

protected static final byte SHORT_BYTES

The size, in bytes of the data type "SHORT", that is, 2.

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Constant Field Values

ULONG_BYTES

protected static final byte ULONG_BYTES

The size, in bytes of the data type "ULONG", that is, 4.

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Constant Field Values

LONG_BYTES

protected static final byte LONG_BYTES

The size, in bytes of the data type "LONG", that is, 4.

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Constant Field Values

FIXED_BYTES

protected static final byte FIXED_BYTES

The size, in bytes of the data type "FIXED", that is, 4.

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Constant Field Values

FWORD_BYTES

protected static final byte FWORD_BYTES

The size, in bytes of the data type "FWORD", that is, 2.

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Constant Field Values

UFWORD_BYTES

protected static final byte UFWORD_BYTES

The size, in bytes of the data type "UFWORD", that is, 2.

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Constant Field Values

F2DOT14_BYTES

protected static final byte F2DOT14_BYTES

The size, in bytes of the data type "F2DOT14", that is, 2.

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Constant Field Values

LONG_DATE_TIME_BYTES

protected static final byte LONG_DATE_TIME_BYTES

The size, in bytes of the data type "International Date", that is, 8.

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Constant Field Values

OFFSET_BYTES

protected static final byte OFFSET_BYTES

The size, in bytes of the data type "Offset", that is, 2.

See Also:

Constant Field Values

Constructor Detail

TTFTableCMAP

public TTFTableCMAP(TTFOffsetTableRecord dirEntry)

Constructor.

Parameters:

dirEntry - The parent table directory entry.

Method Detail

parse

public static TTFTableCMAP parse(TTFOffsetTableRecord dirEntry,
                                 RandomAccessInput raInput,
                                 org.axsl.ps.PsServer psServer,
                                 String fontPostScriptName)
                          throws IOException

Parse the cmap table. Currently only unicode cmaps are supported.

Parameters:

dirEntry - The parent table directory entry.

raInput - The input which is being parsed.

psServer - The PostScript server.

fontPostScriptName - The PostScript name of this font.

Returns:

The parsed instance.

Throws:

IOException - For I/O Error.

getTableTag

public String getTableTag()

Return the 4-character name of this table, for example, "post" or "glyf".

Returns:

The name of this table.

getUnicodeCMap

public org.axsl.ps.Cmap getUnicodeCMap()

Returns the Unicode CMap instance parsed from this table.

Returns:

The Unicode CMap instance parsed from this table.

encodeCharacter

public int encodeCharacter(int codePoint)

Encode a specific character using the Unicode CMap from this table.

Parameters:

codePoint - The code point to be encoded.

Returns:

The glyph index corresponding to codePoint.

decodeCharacter

public int decodeCharacter(int glyphIndex)

Decodes a glyph index using the Unicode CMap from this table.

Parameters:

glyphIndex - The glyph index to be decoded.

Returns:

The Unicode code point corresponding to glyphIndex.