com.lowagie.text.pdf
Class BaseFont

java.lang.Object
  extended bycom.lowagie.text.pdf.BaseFont
Direct Known Subclasses:
CJKFont, DocumentFont, TrueTypeFont, Type1Font

public abstract class BaseFont
extends Object

Base class for the several font types supported

Author:
Paulo Soares (psoares@consiste.pt)

Nested Class Summary
(package private) static class BaseFont.StreamFont
          Generates the PDF stream with the Type1 and Truetype fonts returning a PdfStream.
 
Field Summary
static int ASCENT
          The maximum height above the baseline reached by glyphs in this font, excluding the height of glyphs for accented characters.
static int AWT_ASCENT
          java.awt.Font property
static int AWT_DESCENT
          java.awt.Font property
static int AWT_LEADING
          java.awt.Font property
static int AWT_MAXADVANCE
          java.awt.Font property
static int BBOXLLX
          The lower left x glyph coordinate.
static int BBOXLLY
          The lower left y glyph coordinate.
static int BBOXURX
          The upper right x glyph coordinate.
static int BBOXURY
          The upper right y glyph coordinate.
protected static HashMap BuiltinFonts14
          list of the 14 built in fonts.
static boolean CACHED
          if the font has to be cached
static int CAPHEIGHT
          The y coordinate of the top of flat capital letters, measured from the baseline.
protected  int[][] charBBoxes
           
static char CID_NEWLINE
          The fake CID code that represents a newline.
static String COURIER
          This is a possible value of a base 14 type 1 font
static String COURIER_BOLD
          This is a possible value of a base 14 type 1 font
static String COURIER_BOLDOBLIQUE
          This is a possible value of a base 14 type 1 font
static String COURIER_OBLIQUE
          This is a possible value of a base 14 type 1 font
static String CP1250
          A possible encoding.
static String CP1252
          A possible encoding.
static String CP1257
          A possible encoding.
static int DESCENT
          The maximum depth below the baseline reached by glyphs in this font.
protected  String[] differences
          encoding names
protected  boolean directTextToByte
          Converts char directly to byte by casting.
protected  boolean embedded
          true if the font is to be embedded in the PDF
static boolean EMBEDDED
          if the font has to be embedded
protected  String encoding
          encoding used with this font
protected  boolean fastWinansi
           
static int FONT_TYPE_CJK
          The font is CJK.
static int FONT_TYPE_DOCUMENT
          A font already inside the document.
static int FONT_TYPE_T1
          The font is Type 1.
static int FONT_TYPE_TT
          The font is True Type with a standard encoding.
static int FONT_TYPE_TTUNI
          The font is True Type with a Unicode encoding.
protected static HashMap fontCache
          cache for the fonts already used.
protected  boolean fontSpecific
          true if the font must use it's built in encoding.
(package private)  int fontType
          The font type.
protected  boolean forceWidthsOutput
          Forces the output of the width array.
static String HELVETICA
          This is a possible value of a base 14 type 1 font
static String HELVETICA_BOLD
          This is a possible value of a base 14 type 1 font
static String HELVETICA_BOLDOBLIQUE
          This is a possible value of a base 14 type 1 font
static String HELVETICA_OBLIQUE
          This is a possible value of a base 14 type 1 font
static String IDENTITY_H
          The Unicode encoding with horizontal writing.
static String IDENTITY_V
          The Unicode encoding with vertical writing.
static int ITALICANGLE
          The angle, expressed in degrees counterclockwise from the vertical, of the dominant vertical strokes of the font.
static String MACROMAN
          A possible encoding.
static boolean NOT_CACHED
          if the font doesn't have to be cached
static boolean NOT_EMBEDDED
          if the font doesn't have to be embedded
static String notdef
          a not defined character in a custom PDF encoding
static String RESOURCE_PATH
          The path to the font resources.
protected  boolean subset
          Indicates if all the glyphs and widths for that particular encoding should be included in the document.
static String SYMBOL
          This is a possible value of a base 14 type 1 font
static String TIMES_BOLD
          This is a possible value of a base 14 type 1 font
static String TIMES_BOLDITALIC
          This is a possible value of a base 14 type 1 font
static String TIMES_ITALIC
          This is a possible value of a base 14 type 1 font
static String TIMES_ROMAN
          This is a possible value of a base 14 type 1 font
protected  char[] unicodeDifferences
          same as differences but with the unicode codes
protected  int[] widths
          table of characters widths for this encoding
static String WINANSI
          A possible encoding.
static String ZAPFDINGBATS
          This is a possible value of a base 14 type 1 font
 
Constructor Summary
protected BaseFont()
          Creates new BaseFont
 
Method Summary
private static void addFont(PRIndirectReference fontRef, IntHashtable hits, ArrayList fonts)
           
 boolean charExists(char c)
          Checks if a character exists in this font.
(package private)  byte[] convertToBytes(String text)
          Converts a String to a byte array according to the font's encoding.
protected  void createEncoding()
          Creates the widths and the differences arrays
static BaseFont createFont(PRIndirectReference fontRef)
          Creates a font based on an existing document font.
static BaseFont createFont(String name, String encoding, boolean embedded)
          Creates a new font.
static BaseFont createFont(String name, String encoding, boolean embedded, boolean cached, byte[] ttfAfm, byte[] pfb)
          Creates a new font.
static String createSubsetPrefix()
          Creates a unique subset prefix to be added to the font name when the font is embedded and subset.
static String[] enumerateTTCNames(byte[] ttcArray)
          Enumerates the postscript font names present inside a True Type Collection.
static String[] enumerateTTCNames(String ttcFile)
          Enumerates the postscript font names present inside a True Type Collection.
static Object[] getAllFontNames(String name, String encoding, byte[] ttfAfm)
          Gets all the names from the font.
 int getAscent(String text)
          Gets the ascent of a String in normalized 1000 units.
 float getAscentPoint(String text, float fontSize)
          Gets the ascent of a String in points.
protected static String getBaseName(String name)
          Gets the name without the modifiers Bold, Italic or BoldItalic.
 int[] getCharBBox(char c)
          Gets the smallest box enclosing the character contours.
 char getCidCode(char c)
          Gets the CID code given an Unicode.
 String[] getCodePagesSupported()
          Gets the code pages supported by the font.
 int getDescent(String text)
          Gets the descent of a String in normalized 1000 units.
 float getDescentPoint(String text, float fontSize)
          Gets the descent of a String in points.
 String[] getDifferences()
          Gets the array with the names of the characters.
static ArrayList getDocumentFonts(PdfReader reader)
          Gets a list of all document fonts.
static ArrayList getDocumentFonts(PdfReader reader, int page)
          Gets a list of the document fonts in a particular page.
 String getEncoding()
          Gets the encoding used to convert String into byte[].
abstract  String[][] getFamilyFontName()
          Gets the family name of the font.
abstract  float getFontDescriptor(int key, float fontSize)
          Gets the font parameter identified by key.
 int getFontType()
          Gets the font type.
abstract  String[][] getFullFontName()
          Gets the full name of the font.
static String[][] getFullFontName(String name, String encoding, byte[] ttfAfm)
          Gets the full name of the font.
abstract  int getKerning(char char1, char char2)
          Gets the kerning between two Unicode chars.
abstract  String getPostscriptFontName()
          Gets the postscript font name.
protected abstract  int[] getRawCharBBox(int c, String name)
           
(package private) abstract  int getRawWidth(int c, String name)
          Gets the width from the font according to the Unicode char c or the name.
static InputStream getResourceStream(String key)
          Gets the font resources.
static InputStream getResourceStream(String key, ClassLoader loader)
          Gets the font resources.
 char[] getUnicodeDifferences()
          Gets the array with the unicode characters.
(package private)  char getUnicodeDifferences(int index)
          Gets the Unicode character corresponding to the byte output to the pdf stream.
 char getUnicodeEquivalent(char c)
          Gets the Unicode equivalent to a CID.
 int getWidth(char char1)
          Gets the width of a char in normalized 1000 units.
 int getWidth(String text)
          Gets the width of a String in normalized 1000 units.
 float getWidthPoint(char char1, float fontSize)
          Gets the width of a char in points.
 float getWidthPoint(String text, float fontSize)
          Gets the width of a String in points.
 float getWidthPointKerned(String text, float fontSize)
          Gets the width of a String in points taking kerning into account.
 int[] getWidths()
          Gets the font width array.
abstract  boolean hasKernPairs()
          Checks if the font has any kerning pairs.
 boolean isDirectTextToByte()
          Gets the direct conversion of char to byte.
 boolean isEmbedded()
          Gets the embedded flag.
 boolean isFontSpecific()
          Gets the symbolic flag of the font.
 boolean isForceWidthsOutput()
          Gets the state of the property.
 boolean isSubset()
          Indicates if all the glyphs and widths for that particular encoding should be included in the document.
protected static String normalizeEncoding(String enc)
          Normalize the encoding names.
private static void recourseFonts(PdfDictionary page, IntHashtable hits, ArrayList fonts, int level)
           
 boolean setCharAdvance(char c, int advance)
          Sets the character advance.
 void setDirectTextToByte(boolean directTextToByte)
          Sets the conversion of char directly to byte by casting.
 void setForceWidthsOutput(boolean forceWidthsOutput)
          Set to true to force the generation of the widths array.
abstract  boolean setKerning(char char1, char char2, int kern)
          Sets the kerning between two Unicode chars.
abstract  void setPostscriptFontName(String name)
          Sets the font name that will appear in the pdf font dictionary.
 void setSubset(boolean subset)
          Indicates if all the glyphs and widths for that particular encoding should be included in the document.
(package private) abstract  void writeFont(PdfWriter writer, PdfIndirectReference ref, Object[] params)
          Outputs to the writer the font dictionaries and streams.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

COURIER

public static final String COURIER
This is a possible value of a base 14 type 1 font

See Also:
Constant Field Values

COURIER_BOLD

public static final String COURIER_BOLD
This is a possible value of a base 14 type 1 font

See Also:
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COURIER_OBLIQUE

public static final String COURIER_OBLIQUE
This is a possible value of a base 14 type 1 font

See Also:
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COURIER_BOLDOBLIQUE

public static final String COURIER_BOLDOBLIQUE
This is a possible value of a base 14 type 1 font

See Also:
Constant Field Values

HELVETICA

public static final String HELVETICA
This is a possible value of a base 14 type 1 font

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Constant Field Values

HELVETICA_BOLD

public static final String HELVETICA_BOLD
This is a possible value of a base 14 type 1 font

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HELVETICA_OBLIQUE

public static final String HELVETICA_OBLIQUE
This is a possible value of a base 14 type 1 font

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HELVETICA_BOLDOBLIQUE

public static final String HELVETICA_BOLDOBLIQUE
This is a possible value of a base 14 type 1 font

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SYMBOL

public static final String SYMBOL
This is a possible value of a base 14 type 1 font

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TIMES_ROMAN

public static final String TIMES_ROMAN
This is a possible value of a base 14 type 1 font

See Also:
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TIMES_BOLD

public static final String TIMES_BOLD
This is a possible value of a base 14 type 1 font

See Also:
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TIMES_ITALIC

public static final String TIMES_ITALIC
This is a possible value of a base 14 type 1 font

See Also:
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TIMES_BOLDITALIC

public static final String TIMES_BOLDITALIC
This is a possible value of a base 14 type 1 font

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ZAPFDINGBATS

public static final String ZAPFDINGBATS
This is a possible value of a base 14 type 1 font

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Constant Field Values

ASCENT

public static final int ASCENT
The maximum height above the baseline reached by glyphs in this font, excluding the height of glyphs for accented characters.

See Also:
Constant Field Values

CAPHEIGHT

public static final int CAPHEIGHT
The y coordinate of the top of flat capital letters, measured from the baseline.

See Also:
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DESCENT

public static final int DESCENT
The maximum depth below the baseline reached by glyphs in this font. The value is a negative number.

See Also:
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ITALICANGLE

public static final int ITALICANGLE
The angle, expressed in degrees counterclockwise from the vertical, of the dominant vertical strokes of the font. The value is negative for fonts that slope to the right, as almost all italic fonts do.

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BBOXLLX

public static final int BBOXLLX
The lower left x glyph coordinate.

See Also:
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BBOXLLY

public static final int BBOXLLY
The lower left y glyph coordinate.

See Also:
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BBOXURX

public static final int BBOXURX
The upper right x glyph coordinate.

See Also:
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BBOXURY

public static final int BBOXURY
The upper right y glyph coordinate.

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AWT_ASCENT

public static final int AWT_ASCENT
java.awt.Font property

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AWT_DESCENT

public static final int AWT_DESCENT
java.awt.Font property

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AWT_LEADING

public static final int AWT_LEADING
java.awt.Font property

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AWT_MAXADVANCE

public static final int AWT_MAXADVANCE
java.awt.Font property

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FONT_TYPE_T1

public static final int FONT_TYPE_T1
The font is Type 1.

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FONT_TYPE_TT

public static final int FONT_TYPE_TT
The font is True Type with a standard encoding.

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FONT_TYPE_CJK

public static final int FONT_TYPE_CJK
The font is CJK.

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FONT_TYPE_TTUNI

public static final int FONT_TYPE_TTUNI
The font is True Type with a Unicode encoding.

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FONT_TYPE_DOCUMENT

public static final int FONT_TYPE_DOCUMENT
A font already inside the document.

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IDENTITY_H

public static final String IDENTITY_H
The Unicode encoding with horizontal writing.

See Also:
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IDENTITY_V

public static final String IDENTITY_V
The Unicode encoding with vertical writing.

See Also:
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CP1250

public static final String CP1250
A possible encoding.

See Also:
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CP1252

public static final String CP1252
A possible encoding.

See Also:
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CP1257

public static final String CP1257
A possible encoding.

See Also:
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WINANSI

public static final String WINANSI
A possible encoding.

See Also:
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MACROMAN

public static final String MACROMAN
A possible encoding.

See Also:
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EMBEDDED

public static final boolean EMBEDDED
if the font has to be embedded

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NOT_EMBEDDED

public static final boolean NOT_EMBEDDED
if the font doesn't have to be embedded

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CACHED

public static final boolean CACHED
if the font has to be cached

See Also:
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NOT_CACHED

public static final boolean NOT_CACHED
if the font doesn't have to be cached

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RESOURCE_PATH

public static final String RESOURCE_PATH
The path to the font resources.

See Also:
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CID_NEWLINE

public static final char CID_NEWLINE
The fake CID code that represents a newline.

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fontType

int fontType
The font type.


notdef

public static final String notdef
a not defined character in a custom PDF encoding

See Also:
Constant Field Values

widths

protected int[] widths
table of characters widths for this encoding


differences

protected String[] differences
encoding names


unicodeDifferences

protected char[] unicodeDifferences
same as differences but with the unicode codes


charBBoxes

protected int[][] charBBoxes

encoding

protected String encoding
encoding used with this font


embedded

protected boolean embedded
true if the font is to be embedded in the PDF


fontSpecific

protected boolean fontSpecific
true if the font must use it's built in encoding. In that case the encoding is only used to map a char to the position inside the font, not to the expected char name.


fontCache

protected static HashMap fontCache
cache for the fonts already used.


BuiltinFonts14

protected static final HashMap BuiltinFonts14
list of the 14 built in fonts.


forceWidthsOutput

protected boolean forceWidthsOutput
Forces the output of the width array. Only matters for the 14 built-in fonts.


directTextToByte

protected boolean directTextToByte
Converts char directly to byte by casting.


subset

protected boolean subset
Indicates if all the glyphs and widths for that particular encoding should be included in the document.


fastWinansi

protected boolean fastWinansi
Constructor Detail

BaseFont

protected BaseFont()
Creates new BaseFont

Method Detail

createFont

public static BaseFont createFont(String name,
                                  String encoding,
                                  boolean embedded)
                           throws DocumentException,
                                  IOException
Creates a new font. This font can be one of the 14 built in types, a Type1 font referred by an AFM file, a TrueType font (simple or collection) or a CJK font from the Adobe Asian Font Pack. TrueType fonts and CJK fonts can have an optional style modifier appended to the name. These modifiers are: Bold, Italic and BoldItalic. An example would be "STSong-Light,Bold". Note that this modifiers do not work if the font is embedded. Fonts in TrueType collections are addressed by index such as "msgothic.ttc,1". This would get the second font (indexes start at 0), in this case "MS PGothic".

The fonts are cached and if they already exist they are extracted from the cache, not parsed again.

This method calls:

 createFont(name, encoding, embedded, true, null, null);
 

Parameters:
name - the name of the font or it's location on file
encoding - the encoding to be applied to this font
embedded - true if the font is to be embedded in the PDF
Returns:
returns a new font. This font may come from the cache
Throws:
DocumentException - the font is invalid
IOException - the font file could not be read

createFont

public static BaseFont createFont(String name,
                                  String encoding,
                                  boolean embedded,
                                  boolean cached,
                                  byte[] ttfAfm,
                                  byte[] pfb)
                           throws DocumentException,
                                  IOException
Creates a new font. This font can be one of the 14 built in types, a Type1 font referred by an AFM file, a TrueType font (simple or collection) or a CJK font from the Adobe Asian Font Pack. TrueType fonts and CJK fonts can have an optional style modifier appended to the name. These modifiers are: Bold, Italic and BoldItalic. An example would be "STSong-Light,Bold". Note that this modifiers do not work if the font is embedded. Fonts in TrueType collections are addressed by index such as "msgothic.ttc,1". This would get the second font (indexes start at 0), in this case "MS PGothic".

The fonts may or may not be cached depending on the flag cached. If the byte arrays are present the font will be read from them instead of the name. The name is still required to identify the font type.

Parameters:
name - the name of the font or it's location on file
encoding - the encoding to be applied to this font
embedded - true if the font is to be embedded in the PDF
cached - true if the font comes from the cache or is added to the cache if new, false if the font is always created new
ttfAfm - the true type font or the afm in a byte array
pfb - the pfb in a byte array
Returns:
returns a new font. This font may come from the cache but only if cached is true, otherwise it will always be created new
Throws:
DocumentException - the font is invalid
IOException - the font file could not be read

createFont

public static BaseFont createFont(PRIndirectReference fontRef)
Creates a font based on an existing document font. The created font font may not behave as expected, depending on the encoding or subset.

Parameters:
fontRef - the reference to the document font
Returns:
the font

getBaseName

protected static String getBaseName(String name)
Gets the name without the modifiers Bold, Italic or BoldItalic.

Parameters:
name - the full name of the font
Returns:
the name without the modifiers Bold, Italic or BoldItalic

normalizeEncoding

protected static String normalizeEncoding(String enc)
Normalize the encoding names. "winansi" is changed to "Cp1252" and "macroman" is changed to "MacRoman".

Parameters:
enc - the encoding to be normalized
Returns:
the normalized encoding

createEncoding

protected void createEncoding()
Creates the widths and the differences arrays


getRawWidth

abstract int getRawWidth(int c,
                         String name)
Gets the width from the font according to the Unicode char c or the name. If the name is null it's a symbolic font.

Parameters:
c - the unicode char
name - the glyph name
Returns:
the width of the char

getKerning

public abstract int getKerning(char char1,
                               char char2)
Gets the kerning between two Unicode chars.

Parameters:
char1 - the first char
char2 - the second char
Returns:
the kerning to be applied in normalized 1000 units

setKerning

public abstract boolean setKerning(char char1,
                                   char char2,
                                   int kern)
Sets the kerning between two Unicode chars.

Parameters:
char1 - the first char
char2 - the second char
kern - the kerning to apply in normalized 1000 units
Returns:
true if the kerning was applied, false otherwise

getWidth

public int getWidth(char char1)
Gets the width of a char in normalized 1000 units.

Parameters:
char1 - the unicode char to get the width of
Returns:
the width in normalized 1000 units

getWidth

public int getWidth(String text)
Gets the width of a String in normalized 1000 units.

Parameters:
text - the String to get the witdth of
Returns:
the width in normalized 1000 units

getDescent

public int getDescent(String text)
Gets the descent of a String in normalized 1000 units. The descent will always be less than or equal to zero even if all the characters have an higher descent.

Parameters:
text - the String to get the descent of
Returns:
the dexcent in normalized 1000 units

getAscent

public int getAscent(String text)
Gets the ascent of a String in normalized 1000 units. The ascent will always be greater than or equal to zero even if all the characters have a lower ascent.

Parameters:
text - the String to get the ascent of
Returns:
the ascent in normalized 1000 units

getDescentPoint

public float getDescentPoint(String text,
                             float fontSize)
Gets the descent of a String in points. The descent will always be less than or equal to zero even if all the characters have an higher descent.

Parameters:
text - the String to get the descent of
fontSize - the size of the font
Returns:
the dexcent in points

getAscentPoint

public float getAscentPoint(String text,
                            float fontSize)
Gets the ascent of a String in points. The ascent will always be greater than or equal to zero even if all the characters have a lower ascent.

Parameters:
text - the String to get the ascent of
fontSize - the size of the font
Returns:
the ascent in points

getWidthPointKerned

public float getWidthPointKerned(String text,
                                 float fontSize)
Gets the width of a String in points taking kerning into account.

Parameters:
text - the String to get the witdth of
fontSize - the font size
Returns:
the width in points

getWidthPoint

public float getWidthPoint(String text,
                           float fontSize)
Gets the width of a String in points.

Parameters:
text - the String to get the witdth of
fontSize - the font size
Returns:
the width in points

getWidthPoint

public float getWidthPoint(char char1,
                           float fontSize)
Gets the width of a char in points.

Parameters:
char1 - the char to get the witdth of
fontSize - the font size
Returns:
the width in points

convertToBytes

byte[] convertToBytes(String text)
Converts a String to a byte array according to the font's encoding.

Parameters:
text - the String to be converted
Returns:
an array of byte representing the conversion according to the font's encoding

writeFont

abstract void writeFont(PdfWriter writer,
                        PdfIndirectReference ref,
                        Object[] params)
                 throws DocumentException,
                        IOException
Outputs to the writer the font dictionaries and streams.

Parameters:
writer - the writer for this document
ref - the font indirect reference
params - several parameters that depend on the font type
Throws:
IOException - on error
DocumentException - error in generating the object

getEncoding

public String getEncoding()
Gets the encoding used to convert String into byte[].

Returns:
the encoding name

getFontDescriptor

public abstract float getFontDescriptor(int key,
                                        float fontSize)
Gets the font parameter identified by key. Valid values for key are ASCENT, AWT_ASCENT, CAPHEIGHT, DESCENT, AWT_DESCENT, ITALICANGLE, BBOXLLX, BBOXLLY, BBOXURX and BBOXURY.

Parameters:
key - the parameter to be extracted
fontSize - the font size in points
Returns:
the parameter in points

getFontType

public int getFontType()
Gets the font type. The font types can be: FONT_TYPE_T1, FONT_TYPE_TT, FONT_TYPE_CJK and FONT_TYPE_TTUNI.

Returns:
the font type

isEmbedded

public boolean isEmbedded()
Gets the embedded flag.

Returns:
true if the font is embedded.

isFontSpecific

public boolean isFontSpecific()
Gets the symbolic flag of the font.

Returns:
true if the font is symbolic

createSubsetPrefix

public static String createSubsetPrefix()
Creates a unique subset prefix to be added to the font name when the font is embedded and subset.

Returns:
the subset prefix

getUnicodeDifferences

char getUnicodeDifferences(int index)
Gets the Unicode character corresponding to the byte output to the pdf stream.

Parameters:
index - the byte index
Returns:
the Unicode character

getPostscriptFontName

public abstract String getPostscriptFontName()
Gets the postscript font name.

Returns:
the postscript font name

setPostscriptFontName

public abstract void setPostscriptFontName(String name)
Sets the font name that will appear in the pdf font dictionary. Use with care as it can easily make a font unreadable if not embedded.

Parameters:
name - the new font name

getFullFontName

public abstract String[][] getFullFontName()
Gets the full name of the font. If it is a True Type font each array element will have {Platform ID, Platform Encoding ID, Language ID, font name}. The interpretation of this values can be found in the Open Type specification, chapter 2, in the 'name' table.
For the other fonts the array has a single element with {"", "", "", font name}.

Returns:
the full name of the font

getFullFontName

public static String[][] getFullFontName(String name,
                                         String encoding,
                                         byte[] ttfAfm)
                                  throws DocumentException,
                                         IOException
Gets the full name of the font. If it is a True Type font each array element will have {Platform ID, Platform Encoding ID, Language ID, font name}. The interpretation of this values can be found in the Open Type specification, chapter 2, in the 'name' table.
For the other fonts the array has a single element with {"", "", "", font name}.

Parameters:
name - the name of the font
encoding - the encoding of the font
ttfAfm - the true type font or the afm in a byte array
Returns:
the full name of the font
Throws:
DocumentException - on error
IOException - on error

getAllFontNames

public static Object[] getAllFontNames(String name,
                                       String encoding,
                                       byte[] ttfAfm)
                                throws DocumentException,
                                       IOException
Gets all the names from the font. Only the required tables are read.

Parameters:
name - the name of the font
encoding - the encoding of the font
ttfAfm - the true type font or the afm in a byte array
Returns:
an array of Object[] built with {getPostscriptFontName(), getFamilyFontName(), getFullFontName()}
Throws:
DocumentException - on error
IOException - on error

getFamilyFontName

public abstract String[][] getFamilyFontName()
Gets the family name of the font. If it is a True Type font each array element will have {Platform ID, Platform Encoding ID, Language ID, font name}. The interpretation of this values can be found in the Open Type specification, chapter 2, in the 'name' table.
For the other fonts the array has a single element with {"", "", "", font name}.

Returns:
the family name of the font

getCodePagesSupported

public String[] getCodePagesSupported()
Gets the code pages supported by the font. This has only meaning with True Type fonts.

Returns:
the code pages supported by the font

enumerateTTCNames

public static String[] enumerateTTCNames(String ttcFile)
                                  throws DocumentException,
                                         IOException
Enumerates the postscript font names present inside a True Type Collection.

Parameters:
ttcFile - the file name of the font
Returns:
the postscript font names
Throws:
DocumentException - on error
IOException - on error

enumerateTTCNames

public static String[] enumerateTTCNames(byte[] ttcArray)
                                  throws DocumentException,
                                         IOException
Enumerates the postscript font names present inside a True Type Collection.

Parameters:
ttcArray - the font as a byte array
Returns:
the postscript font names
Throws:
DocumentException - on error
IOException - on error

getWidths

public int[] getWidths()
Gets the font width array.

Returns:
the font width array

getDifferences

public String[] getDifferences()
Gets the array with the names of the characters.

Returns:
the array with the names of the characters

getUnicodeDifferences

public char[] getUnicodeDifferences()
Gets the array with the unicode characters.

Returns:
the array with the unicode characters

isForceWidthsOutput

public boolean isForceWidthsOutput()
Gets the state of the property.

Returns:
value of property forceWidthsOutput

setForceWidthsOutput

public void setForceWidthsOutput(boolean forceWidthsOutput)
Set to true to force the generation of the widths array.

Parameters:
forceWidthsOutput - true to force the generation of the widths array

isDirectTextToByte

public boolean isDirectTextToByte()
Gets the direct conversion of char to byte.

Returns:
value of property directTextToByte.
See Also:
setDirectTextToByte(boolean directTextToByte)

setDirectTextToByte

public void setDirectTextToByte(boolean directTextToByte)
Sets the conversion of char directly to byte by casting. This is a low level feature to put the bytes directly in the content stream without passing through String.getBytes().

Parameters:
directTextToByte - New value of property directTextToByte.

isSubset

public boolean isSubset()
Indicates if all the glyphs and widths for that particular encoding should be included in the document.

Returns:
false to include all the glyphs and widths.

setSubset

public void setSubset(boolean subset)
Indicates if all the glyphs and widths for that particular encoding should be included in the document. Set to false to include all.

Parameters:
subset - new value of property subset

getResourceStream

public static InputStream getResourceStream(String key)
Gets the font resources.

Parameters:
key - the full name of the resource
Returns:
the InputStream to get the resource or null if not found

getResourceStream

public static InputStream getResourceStream(String key,
                                            ClassLoader loader)
Gets the font resources.

Parameters:
key - the full name of the resource
loader - the ClassLoader to load the resource or null to try the ones available
Returns:
the InputStream to get the resource or null if not found

getUnicodeEquivalent

public char getUnicodeEquivalent(char c)
Gets the Unicode equivalent to a CID. The (inexistent) CID is translated as '\n'. It has only meaning with CJK fonts with Identity encoding.

Parameters:
c - the CID code
Returns:
the Unicode equivalent

getCidCode

public char getCidCode(char c)
Gets the CID code given an Unicode. It has only meaning with CJK fonts.

Parameters:
c - the Unicode
Returns:
the CID equivalent

hasKernPairs

public abstract boolean hasKernPairs()
Checks if the font has any kerning pairs.

Returns:
true if the font has any kerning pairs

charExists

public boolean charExists(char c)
Checks if a character exists in this font.

Parameters:
c - the character to check
Returns:
true if the character has a glyph, false otherwise

setCharAdvance

public boolean setCharAdvance(char c,
                              int advance)
Sets the character advance.

Parameters:
c - the character
advance - the character advance normalized to 1000 units
Returns:
true if the advance was set, false otherwise

addFont

private static void addFont(PRIndirectReference fontRef,
                            IntHashtable hits,
                            ArrayList fonts)

recourseFonts

private static void recourseFonts(PdfDictionary page,
                                  IntHashtable hits,
                                  ArrayList fonts,
                                  int level)

getDocumentFonts

public static ArrayList getDocumentFonts(PdfReader reader)
Gets a list of all document fonts. Each element of the ArrayList contains a Object[]{String,PRIndirectReference} with the font name and the indirect reference to it.

Parameters:
reader - the document where the fonts are to be listed from
Returns:
the list of fonts and references

getDocumentFonts

public static ArrayList getDocumentFonts(PdfReader reader,
                                         int page)
Gets a list of the document fonts in a particular page. Each element of the ArrayList contains a Object[]{String,PRIndirectReference} with the font name and the indirect reference to it.

Parameters:
reader - the document where the fonts are to be listed from
page - the page to list the fonts from
Returns:
the list of fonts and references

getCharBBox

public int[] getCharBBox(char c)
Gets the smallest box enclosing the character contours. It will return null if the font has not the information or the character has no contours, as in the case of the space, for example. Characters with no contours may also return [0,0,0,0].

Parameters:
c - the character to get the contour bounding box from
Returns:
an array of four floats with the bounding box in the format [llx,lly,urx,ury] or null

getRawCharBBox

protected abstract int[] getRawCharBBox(int c,
                                        String name)