Apache PDFBox 3.0.4 · org.apache.fontbox.ttf.TTFSubsetter

Field Summary

Modifier and Type	Field and Description
private final SortedSet<Integer>	glyphIds
private boolean	hasAddedCompoundReferences
private final List<String>	keepTables
private static final Log	LOG
private static final byte[]	PAD_BUF
private String	prefix
private static final TimeZone	TIMEZONE_UTC
private final TrueTypeFont	ttf
private final CmapLookup	unicodeCmap
private final SortedMap<Integer, Integer>	uniToGID

Constructor Summary

Access	Constructor and Description
public	TTFSubsetter(TrueTypeFont the font to be subset ttf) Creates a subsetter for the given font.
public	TTFSubsetter(TrueTypeFont the font to be subset ttf, List<String> optional tables to keep if present tables) Creates a subsetter for the given font.

Method Summary

Modifier and Type	Method and Description
public void	add(int character code unicode) Add the given character code to the subset.
public void	addAll(Set<Integer> character code set unicodeSet) Add the given character codes to the subset.
private void	addCompoundReferences() Resolve compound glyph references.
public void	addGlyphIds(Set<Integer> allGlyphIds)
private byte[]	buildCmapTable()
private byte[]	buildGlyfTable(long[] newOffsets)
private byte[]	buildHeadTable()
private byte[]	buildHheaTable()
private byte[]	buildHmtxTable()
private byte[]	buildLocaTable(long[] newOffsets)
private byte[]	buildMaxpTable()
private byte[]	buildNameTable()
private byte[]	buildOS2Table()
private byte[]	buildPostTable()
private long	copyBytes(InputStream is, OutputStream os, long newOffset, long lastOffset, int count)
public Map<Integer, Integer>	Returns: the GID map getGIDMap() Returns the map of new -> old GIDs.
private int	getNewGlyphId(Integer oldGid)
private int	log2(int num)
public void	setPrefix(String to be used as prefix for the PostScript name of the font prefix) Sets the prefix to add to the font's PostScript name.
private boolean	shouldCopyNameRecord(NameRecord nr)
private long	toUInt32(int high, int low)
private long	toUInt32(byte[] bytes)
private long	Returns: The file offset of the first TTF table to write. writeFileHeader(DataOutputStream The data output stream. out, int The number of table. nTables)
private void	writeFixed(DataOutputStream out, double f)
private void	writeLongDateTime(DataOutputStream out, Calendar calendar)
private void	writeSInt16(DataOutputStream out, short i)
private void	writeTableBody(OutputStream os, byte[] bytes)
private long	writeTableHeader(DataOutputStream out, String tag, long offset, byte[] bytes)
public void	writeToStream(OutputStream the stream used for writing. It will be closed by this method. os) Write the subfont to the given output stream.
private void	writeUint16(DataOutputStream out, int i)
private void	writeUint32(DataOutputStream out, long l)
private void	writeUint8(DataOutputStream out, int i)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

glyphIds	back to summary
private final SortedSet<Integer> glyphIds

hasAddedCompoundReferences	back to summary
private boolean hasAddedCompoundReferences

keepTables	back to summary
private final List<String> keepTables

LOG	back to summary
private static final Log LOG

PAD_BUF	back to summary
private static final byte[] PAD_BUF

prefix	back to summary
private String prefix

TIMEZONE_UTC	back to summary
private static final TimeZone TIMEZONE_UTC

ttf	back to summary
private final TrueTypeFont ttf

unicodeCmap	back to summary
private final CmapLookup unicodeCmap

uniToGID	back to summary
private final SortedMap<Integer, Integer> uniToGID

Constructor Detail

TTFSubsetter	back to summary
public TTFSubsetter(TrueTypeFont ttf) throws IOException Creates a subsetter for the given font. Parameters ttf:TrueTypeFont the font to be subset Exceptions IOException: if there is an error reading the font data

TTFSubsetter

back to summary

public TTFSubsetter(TrueTypeFont ttf) throws IOException

Creates a subsetter for the given font.

Parameters

ttf:TrueTypeFont: the font to be subset

Exceptions

IOException:: if there is an error reading the font data

TTFSubsetter	back to summary
public TTFSubsetter(TrueTypeFont ttf, List<String> tables) throws IOException Creates a subsetter for the given font. Parameters ttf:TrueTypeFont the font to be subset tables:List<String> optional tables to keep if present Exceptions IOException: if there is an error reading the font data

TTFSubsetter

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public TTFSubsetter(TrueTypeFont ttf, List<String> tables) throws IOException

Creates a subsetter for the given font.

Parameters

ttf:TrueTypeFont: the font to be subset
tables:List<String>: optional tables to keep if present

Exceptions

IOException:: if there is an error reading the font data

Method Detail

add	back to summary
public void add(int unicode) Add the given character code to the subset. Parameters unicode:int character code

add

back to summary

public void add(int unicode)

Add the given character code to the subset.

Parameters

unicode:int: character code

addAll	back to summary
public void addAll(Set<Integer> unicodeSet) Add the given character codes to the subset. Parameters unicodeSet:Set<Integer> character code set

addAll

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public void addAll(Set<Integer> unicodeSet)

Add the given character codes to the subset.

Parameters

unicodeSet:Set<Integer>: character code set

addCompoundReferences	back to summary
private void addCompoundReferences() throws IOException Resolve compound glyph references.

addGlyphIds	back to summary
public void addGlyphIds(Set<Integer> allGlyphIds)

buildCmapTable	back to summary
private byte[] buildCmapTable() throws IOException

buildGlyfTable	back to summary
private byte[] buildGlyfTable(long[] newOffsets) throws IOException

buildHeadTable	back to summary
private byte[] buildHeadTable() throws IOException

buildHheaTable	back to summary
private byte[] buildHheaTable() throws IOException

buildHmtxTable	back to summary
private byte[] buildHmtxTable() throws IOException

buildLocaTable	back to summary
private byte[] buildLocaTable(long[] newOffsets) throws IOException

buildMaxpTable	back to summary
private byte[] buildMaxpTable() throws IOException

buildNameTable	back to summary
private byte[] buildNameTable() throws IOException

buildOS2Table	back to summary
private byte[] buildOS2Table() throws IOException

buildPostTable	back to summary
private byte[] buildPostTable() throws IOException

copyBytes	back to summary
private long copyBytes(InputStream is, OutputStream os, long newOffset, long lastOffset, int count) throws IOException

getGIDMap	back to summary
public Map<Integer, Integer> getGIDMap() throws IOException Returns the map of new -> old GIDs. Returns:Map<Integer, Integer> the GID map Exceptions IOException: if the font data could not be read

getGIDMap

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public Map<Integer, Integer> getGIDMap() throws IOException

Returns the map of new -> old GIDs.

Returns:Map<Integer, Integer>

the GID map

Exceptions

IOException:: if the font data could not be read

getNewGlyphId	back to summary
private int getNewGlyphId(Integer oldGid)

log2	back to summary
private int log2(int num)

setPrefix	back to summary
public void setPrefix(String prefix) Sets the prefix to add to the font's PostScript name. Parameters prefix:String to be used as prefix for the PostScript name of the font

setPrefix

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public void setPrefix(String prefix)

Sets the prefix to add to the font's PostScript name.

Parameters

prefix:String: to be used as prefix for the PostScript name of the font

shouldCopyNameRecord	back to summary
private boolean shouldCopyNameRecord(NameRecord nr)

toUInt32	back to summary
private long toUInt32(int high, int low)

toUInt32	back to summary
private long toUInt32(byte[] bytes)

writeFileHeader	back to summary
private long writeFileHeader(DataOutputStream out, int nTables) throws IOException Parameters out:DataOutputStream The data output stream. nTables:int The number of table. Returns:long The file offset of the first TTF table to write. Exceptions IOException: Upon errors.

writeFixed	back to summary
private void writeFixed(DataOutputStream out, double f) throws IOException

writeLongDateTime	back to summary
private void writeLongDateTime(DataOutputStream out, Calendar calendar) throws IOException

writeSInt16	back to summary
private void writeSInt16(DataOutputStream out, short i) throws IOException

writeTableBody	back to summary
private void writeTableBody(OutputStream os, byte[] bytes) throws IOException

writeTableHeader	back to summary
private long writeTableHeader(DataOutputStream out, String tag, long offset, byte[] bytes) throws IOException

writeToStream	back to summary
public void writeToStream(OutputStream os) throws IOException Write the subfont to the given output stream. Parameters os:OutputStream the stream used for writing. It will be closed by this method. Exceptions IOException: if something went wrong. IllegalStateException: if the subset is empty.

writeToStream

back to summary

public void writeToStream(OutputStream os) throws IOException

Write the subfont to the given output stream.

Parameters

os:OutputStream: the stream used for writing. It will be closed by this method.

Exceptions

IOException:: if something went wrong.
IllegalStateException:: if the subset is empty.

writeUint16	back to summary
private void writeUint16(DataOutputStream out, int i) throws IOException

writeUint32	back to summary
private void writeUint32(DataOutputStream out, long l) throws IOException

writeUint8	back to summary
private void writeUint8(DataOutputStream out, int i) throws IOException

public final Class TTFSubsetter

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail