com.itextpdf.io.font

Class TrueTypeFont

java.lang.Object

com.itextpdf.io.font.FontProgram

com.itextpdf.io.font.TrueTypeFont

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

DocTrueTypeFont

public class TrueTypeFont
extends FontProgram

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected int[][]	bBoxes
protected boolean	isVertical
protected com.itextpdf.io.util.IntHashtable	kerning The map containing the kerning information.

Fields inherited from class com.itextpdf.io.font.FontProgram

avgWidth, codeToGlyph, DEFAULT_WIDTH, encodingScheme, fontIdentification, fontMetrics, fontNames, isFontSpecific, registry, unicodeToGlyph, UNITS_NORMALIZATION

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	TrueTypeFont()
	TrueTypeFont(byte[] ttf)
	TrueTypeFont(String path)

Method Summary

Modifier and Type	Method and Description
void	close()
Map<Integer,int[]>	getActiveCmap()
String[]	getCodePagesSupported() Gets the code pages supported by the font.
int	getDirectoryOffset() The offset from the start of the file to the table directory.
byte[]	getFontStreamBytes()
OpenTypeGdefTableReader	getGdefTable()
GlyphPositioningTableReader	getGposTable()
GlyphSubstitutionTableReader	getGsubTable()
int	getKerning(Glyph first, Glyph second) Gets the kerning between two glyphs.
int	getPdfFontFlags()
byte[]	getSubset(Set<Integer> glyphs, boolean subset)
boolean	hasKernPairs()
boolean	isBuiltWith(String fontProgram) Checks whether the FontProgram was built with corresponding fontName.
boolean	isCff()
protected void	readGdefTable()
protected void	readGposTable()
protected void	readGsubTable()
void	updateUsedGlyphs(SortedSet<Integer> usedGlyphs, boolean subset, List subsetRanges) The method will update usedGlyphs with additional range or with all glyphs if there is no subset.

Methods inherited from class com.itextpdf.io.font.FontProgram

countOfGlyphs, fixSpaceIssue, getAvgWidth, getCharBBox, getFontIdentification, getFontMetrics, getFontNames, getGlyph, getGlyphByCode, getKerning, getRegistry, getWidth, isFontSpecific, setBbox, setBold, setCapHeight, setFixedPitch, setFontFamily, setFontName, setFontStretch, setFontWeight, setItalicAngle, setRegistry, setStemH, setStemV, setTypoAscender, setTypoDescender, setXHeight, toString

Methods inherited from class java.lang.Object

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

Field Detail

bBoxes

protected int[][] bBoxes

isVertical

protected boolean isVertical

kerning

protected com.itextpdf.io.util.IntHashtable kerning

The map containing the kerning information. It represents the content of table 'kern'. The key is an Integer where the top 16 bits are the glyph number for the first character and the lower 16 bits are the glyph number for the second character. The value is the amount of kerning in normalized 1000 units as an Integer. This value is usually negative.

Constructor Detail

TrueTypeFont

protected TrueTypeFont()

TrueTypeFont

public TrueTypeFont(String path)
             throws IOException

Throws:

IOException

TrueTypeFont

public TrueTypeFont(byte[] ttf)
             throws IOException

Throws:

IOException

Method Detail

hasKernPairs

public boolean hasKernPairs()

Overrides:

hasKernPairs in class FontProgram

getKerning

public int getKerning(Glyph first,
                      Glyph second)

Gets the kerning between two glyphs.

Specified by:

getKerning in class FontProgram

Parameters:

first - the first glyph

second - the second glyph

Returns:

the kerning to be applied

isCff

public boolean isCff()

getActiveCmap

public Map<Integer,int[]> getActiveCmap()

getFontStreamBytes

public byte[] getFontStreamBytes()

getPdfFontFlags

public int getPdfFontFlags()

Specified by:

getPdfFontFlags in class FontProgram

getDirectoryOffset

public int getDirectoryOffset()

The offset from the start of the file to the table directory. It is 0 for TTF and may vary for TTC depending on the chosen font.

Returns:

directory Offset

getGsubTable

public GlyphSubstitutionTableReader getGsubTable()

getGposTable

public GlyphPositioningTableReader getGposTable()

getGdefTable

public OpenTypeGdefTableReader getGdefTable()

getSubset

public byte[] getSubset(Set<Integer> glyphs,
                        boolean subset)

readGdefTable

protected void readGdefTable()
                      throws IOException

Throws:

IOException

readGsubTable

protected void readGsubTable()
                      throws IOException

Throws:

IOException

readGposTable

protected void readGposTable()
                      throws IOException

Throws:

IOException

getCodePagesSupported

public String[] getCodePagesSupported()

Gets the code pages supported by the font.

Returns:

the code pages supported by the font

isBuiltWith

public boolean isBuiltWith(String fontProgram)

Description copied from class: FontProgram

Checks whether the FontProgram was built with corresponding fontName. Default value is false unless overridden.

Overrides:

isBuiltWith in class FontProgram

Parameters:

fontProgram - a font name or path to a font program

Returns:

true, if the FontProgram was built with the fontProgram. Otherwise false.

close

public void close()
           throws IOException

Throws:

IOException

updateUsedGlyphs

public void updateUsedGlyphs(SortedSet<Integer> usedGlyphs,
                             boolean subset,
                             List subsetRanges)

The method will update usedGlyphs with additional range or with all glyphs if there is no subset. This set of used glyphs can be used for building width array and ToUnicode CMAP.

Parameters:

usedGlyphs - a set of integers, which are glyph ids that denote used glyphs. This set is updated inside of the method if needed.

subset - subset status

subsetRanges - additional subset ranges