com.itextpdf.text.pdf.fonts.otf

Class GlyphSubstitutionTableReader

java.lang.Object

com.itextpdf.text.pdf.fonts.otf.OpenTypeFontTableReader

com.itextpdf.text.pdf.fonts.otf.GlyphSubstitutionTableReader

public class GlyphSubstitutionTableReader
extends OpenTypeFontTableReader

Parses an OpenTypeFont file and reads the Glyph Substitution Table. This table governs how two or more Glyphs should be merged to a single Glyph. This is especially useful for Asian languages like Bangla, Hindi, etc.

This has been written according to the OPenTypeFont specifications. This may be found here.

Author:

Palash Ray

Field Summary

Fields inherited from class com.itextpdf.text.pdf.fonts.otf.OpenTypeFontTableReader

LOG, rf, tableLocation

Constructor Summary

Constructors

Constructor and Description
GlyphSubstitutionTableReader(RandomAccessFileOrArray rf, int gsubTableLocation, Map<Integer,Character> glyphToCharacterMap, int[] glyphWidthsByIndex)

Method Summary

Modifier and Type	Method and Description
Map<String,Glyph>	getGlyphSubstitutionMap()
void	read()
protected void	readSubTable(int lookupType, int subTableLocation)

Methods inherited from class com.itextpdf.text.pdf.fonts.otf.OpenTypeFontTableReader

getSupportedLanguage, readCoverageFormat, startReadingTable

Methods inherited from class java.lang.Object

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

Constructor Detail

GlyphSubstitutionTableReader

public GlyphSubstitutionTableReader(RandomAccessFileOrArray rf,
                                    int gsubTableLocation,
                                    Map<Integer,Character> glyphToCharacterMap,
                                    int[] glyphWidthsByIndex)
                             throws IOException

Throws:

IOException

Method Detail

read

public void read()
          throws FontReadingException

Throws:

FontReadingException

getGlyphSubstitutionMap

public Map<String,Glyph> getGlyphSubstitutionMap()
                                          throws FontReadingException

Throws:

FontReadingException

readSubTable

protected void readSubTable(int lookupType,
                            int subTableLocation)
                     throws IOException

Specified by:

readSubTable in class OpenTypeFontTableReader

Throws:

IOException