Package org.apache.pdfbox.pdmodel.font

Class TrueTypeEmbedder

java.lang.Object

org.apache.pdfbox.pdmodel.font.TrueTypeEmbedder

All Implemented Interfaces:

Subsetter

Direct Known Subclasses:

PDCIDFontType2Embedder, PDTrueTypeFontEmbedder

abstract class TrueTypeEmbedder
extends java.lang.Object
implements Subsetter

Common functionality for embedding TrueType fonts.

Field Summary

Fields

Modifier and Type	Field	Description
private java.util.Set<java.lang.Integer>	allGlyphIds
private static java.lang.String	BASE25
protected CmapLookup	cmapLookup
private PDDocument	document
private boolean	embedSubset
protected PDFontDescriptor	fontDescriptor
private static int	ITALIC
private static int	OBLIQUE
private java.util.Set<java.lang.Integer>	subsetCodePoints
private static java.util.List<java.lang.String>	TABLES
protected TrueTypeFont	ttf

Constructor Summary

Constructors

Constructor	Description
TrueTypeEmbedder(PDDocument document, COSDictionary dict, TrueTypeFont ttf, boolean embedSubset)	Creates a new TrueType font for embedding.

Method Summary

Modifier and Type	Method	Description
void	addGlyphIds(java.util.Set<java.lang.Integer> glyphIds)
void	addToSubset(int codePoint)	Adds the given Unicode code point to this subset.
void	buildFontFile2(java.io.InputStream ttfStream)
protected abstract void	buildSubset(java.io.InputStream ttfSubset, java.lang.String tag, java.util.Map<java.lang.Integer,java.lang.Integer> gidToCid)	Rebuild a font subset.
private PDFontDescriptor	createFontDescriptor(TrueTypeFont ttf)	Creates a new font descriptor dictionary for the given TTF.
PDFontDescriptor	getFontDescriptor()	Returns the font descriptor.
java.lang.String	getTag(java.util.Map<java.lang.Integer,java.lang.Integer> gidToCid)	Returns an uppercase 6-character unique tag for the given subset.
(package private) boolean	isEmbeddingPermitted(TrueTypeFont ttf)	Returns true if the fsType in the OS/2 table permits embedding.
private boolean	isSubsettingPermitted(TrueTypeFont ttf)	Returns true if the fsType in the OS/2 table permits subsetting.
boolean	needsSubset()	Returns true if the font needs to be subset.
void	subset()	Subset this font now.

Methods inherited from class java.lang.Object

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

Field Detail

ITALIC

private static final int ITALIC

See Also:

Constant Field Values

OBLIQUE

private static final int OBLIQUE

See Also:

Constant Field Values

BASE25

private static final java.lang.String BASE25

See Also:

Constant Field Values

TABLES

private static final java.util.List<java.lang.String> TABLES

document

private final PDDocument document

ttf

protected TrueTypeFont ttf

fontDescriptor

protected PDFontDescriptor fontDescriptor

cmapLookup

protected final CmapLookup cmapLookup

subsetCodePoints

private final java.util.Set<java.lang.Integer> subsetCodePoints

embedSubset

private final boolean embedSubset

allGlyphIds

private final java.util.Set<java.lang.Integer> allGlyphIds

Constructor Detail

TrueTypeEmbedder

TrueTypeEmbedder(PDDocument document,
                 COSDictionary dict,
                 TrueTypeFont ttf,
                 boolean embedSubset)
          throws java.io.IOException

Creates a new TrueType font for embedding.

Throws:

java.io.IOException

Method Detail

buildFontFile2

public final void buildFontFile2(java.io.InputStream ttfStream)
                          throws java.io.IOException

Throws:

java.io.IOException

isEmbeddingPermitted

final boolean isEmbeddingPermitted(TrueTypeFont ttf)
                            throws java.io.IOException

Returns true if the fsType in the OS/2 table permits embedding.

Throws:

java.io.IOException

isSubsettingPermitted

private boolean isSubsettingPermitted(TrueTypeFont ttf)
                               throws java.io.IOException

Returns true if the fsType in the OS/2 table permits subsetting.

Throws:

java.io.IOException

createFontDescriptor

private PDFontDescriptor createFontDescriptor(TrueTypeFont ttf)
                                       throws java.io.IOException

Creates a new font descriptor dictionary for the given TTF.

Throws:

java.io.IOException

getFontDescriptor

public PDFontDescriptor getFontDescriptor()

Returns the font descriptor.

addToSubset

public void addToSubset(int codePoint)

Description copied from interface: Subsetter

Adds the given Unicode code point to this subset.

Specified by:

addToSubset in interface Subsetter

Parameters:

codePoint - Unicode code point

addGlyphIds

public void addGlyphIds(java.util.Set<java.lang.Integer> glyphIds)

subset

public void subset()
            throws java.io.IOException

Description copied from interface: Subsetter

Subset this font now.

Specified by:

subset in interface Subsetter

Throws:

java.io.IOException - if the font could not be read

needsSubset

public boolean needsSubset()

Returns true if the font needs to be subset.

buildSubset

protected abstract void buildSubset(java.io.InputStream ttfSubset,
                                    java.lang.String tag,
                                    java.util.Map<java.lang.Integer,java.lang.Integer> gidToCid)
                             throws java.io.IOException

Rebuild a font subset.

Throws:

java.io.IOException

getTag

public java.lang.String getTag(java.util.Map<java.lang.Integer,java.lang.Integer> gidToCid)

Returns an uppercase 6-character unique tag for the given subset.