com.lowagie.text.pdf

Class CJKFont

java.lang.Object

com.lowagie.text.pdf.BaseFont

com.lowagie.text.pdf.CJKFont

 class CJKFont
extends BaseFont

Creates a CJK font compatible with the fonts in the Adobe Asian font Pack.

Author:

Paulo Soares (psoares@consiste.pt)

Nested Class Summary

Nested classes/interfaces inherited from class com.lowagie.text.pdf.BaseFont

BaseFont.StreamFont

Field Summary

Fields

Modifier and Type	Field and Description
(package private) static Hashtable	allCMaps
(package private) static Hashtable	allFonts
private static int	BRACKET
private boolean	cidDirect
(package private) static String	CJK_ENCODING The encoding used in the PDF document for CJK fonts
(package private) static Properties	cjkEncodings
(package private) static Properties	cjkFonts
private String	CMap The CMap name associated with this font
private static int	FIRST
private HashMap	fontDesc
private String	fontName The font name
private IntHashtable	hMetrics
private static boolean	propertiesLoaded
private static int	SERIAL
private String	style The style modifier
private char[]	translationMap
private static int	V1Y
private boolean	vertical
private IntHashtable	vMetrics

Fields inherited from class com.lowagie.text.pdf.BaseFont

ASCENT, AWT_ASCENT, AWT_DESCENT, AWT_LEADING, AWT_MAXADVANCE, BBOXLLX, BBOXLLY, BBOXURX, BBOXURY, BuiltinFonts14, CACHED, CAPHEIGHT, CHAR_RANGE_ARABIC, CHAR_RANGE_CYRILLIC, CHAR_RANGE_HEBREW, CHAR_RANGE_LATIN, charBBoxes, CID_NEWLINE, compressionLevel, COURIER, COURIER_BOLD, COURIER_BOLDOBLIQUE, COURIER_OBLIQUE, CP1250, CP1252, CP1257, DESCENT, differences, directTextToByte, embedded, EMBEDDED, encoding, fastWinansi, FONT_TYPE_CJK, FONT_TYPE_DOCUMENT, FONT_TYPE_T1, FONT_TYPE_T3, FONT_TYPE_TT, FONT_TYPE_TTUNI, fontCache, fontSpecific, fontType, forceWidthsOutput, HELVETICA, HELVETICA_BOLD, HELVETICA_BOLDOBLIQUE, HELVETICA_OBLIQUE, IDENTITY_H, IDENTITY_V, ITALICANGLE, MACROMAN, NOT_CACHED, NOT_EMBEDDED, notdef, RESOURCE_PATH, specialMap, STRIKETHROUGH_POSITION, STRIKETHROUGH_THICKNESS, SUBSCRIPT_OFFSET, SUBSCRIPT_SIZE, subset, subsetRanges, SUPERSCRIPT_OFFSET, SUPERSCRIPT_SIZE, SYMBOL, TIMES_BOLD, TIMES_BOLDITALIC, TIMES_ITALIC, TIMES_ROMAN, UNDERLINE_POSITION, UNDERLINE_THICKNESS, unicodeDifferences, widths, WINANSI, ZAPFDINGBATS

Constructor Summary

Constructors

Constructor and Description
CJKFont(String fontName, String enc, boolean emb) Creates a CJK font.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	charExists(int c) Checks if a character exists in this font.
(package private) static String	convertToHCIDMetrics(int[] keys, IntHashtable h)
(package private) static String	convertToVCIDMetrics(int[] keys, IntHashtable v, IntHashtable h)
(package private) static IntHashtable	createMetric(String s)
String[][]	getAllNameEntries() Gets all the entries of the names-table.
private float	getBBox(int idx)
int[]	getCharBBox(int c) Gets the smallest box enclosing the character contours.
int	getCidCode(int c) Gets the CID code given an Unicode.
private PdfDictionary	getCIDFont(PdfIndirectReference fontDescriptor, IntHashtable cjkTag)
private float	getDescNumber(String name)
String[][]	getFamilyFontName() Gets the family name of the font.
private PdfDictionary	getFontBaseType(PdfIndirectReference CIDFont)
private PdfDictionary	getFontDescriptor()
float	getFontDescriptor(int key, float fontSize) Gets the font parameter identified by key.
String[][]	getFullFontName() Gets the full name of the font.
PdfStream	getFullFontStream() You can't get the FontStream of a CJK font (CJK fonts are never embedded), so this method always returns null.
int	getKerning(int char1, int char2) Gets the kerning between two Unicode chars.
String	getPostscriptFontName() Gets the postscript font name.
protected int[]	getRawCharBBox(int c, String name)
(package private) int	getRawWidth(int c, String name) Gets the width from the font according to the Unicode char c or the name.
int	getUnicodeEquivalent(int c) Gets the Unicode equivalent to a CID.
int	getWidth(int 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.
boolean	hasKernPairs() Checks if the font has any kerning pairs.
static boolean	isCJKFont(String fontName, String enc) Checks if its a valid CJK font.
private static void	loadProperties()
(package private) static char[]	readCMap(String name)
(package private) static HashMap	readFontProperties(String name)
boolean	setCharAdvance(int c, int advance) Sets the character advance.
boolean	setKerning(int char1, int char2, int kern) Sets the kerning between two Unicode chars.
void	setPostscriptFontName(String name) Sets the font name that will appear in the pdf font dictionary.
(package private) void	writeFont(PdfWriter writer, PdfIndirectReference ref, Object[] params) Outputs to the writer the font dictionaries and streams.

Methods inherited from class com.lowagie.text.pdf.BaseFont

addSubsetRange, convertToBytes, convertToBytes, correctArabicAdvance, createEncoding, createFont, createFont, createFont, createFont, createFont, createFont, createFont, createSubsetPrefix, enumerateTTCNames, enumerateTTCNames, getAllFontNames, getAllNameEntries, getAscent, getAscentPoint, getBaseName, getCodePagesSupported, getCompressionLevel, getDescent, getDescentPoint, getDifferences, getDocumentFonts, getDocumentFonts, getEncoding, getFontType, getFullFontName, getResourceStream, getResourceStream, getUnicodeDifferences, getUnicodeDifferences, getWidthPoint, getWidthPoint, getWidthPointKerned, getWidths, isDirectTextToByte, isEmbedded, isFontSpecific, isForceWidthsOutput, isSubset, normalizeEncoding, setCompressionLevel, setDirectTextToByte, setForceWidthsOutput, setSubset

Methods inherited from class java.lang.Object

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

Field Detail

CJK_ENCODING

static final String CJK_ENCODING

The encoding used in the PDF document for CJK fonts

See Also:

Constant Field Values

FIRST

private static final int FIRST

See Also:

Constant Field Values

BRACKET

private static final int BRACKET

See Also:

Constant Field Values

SERIAL

private static final int SERIAL

See Also:

Constant Field Values

V1Y

private static final int V1Y

See Also:

Constant Field Values

cjkFonts

static Properties cjkFonts

cjkEncodings

static Properties cjkEncodings

allCMaps

static Hashtable allCMaps

allFonts

static Hashtable allFonts

propertiesLoaded

private static boolean propertiesLoaded

fontName

private String fontName

The font name

style

private String style

The style modifier

CMap

private String CMap

The CMap name associated with this font

cidDirect

private boolean cidDirect

translationMap

private char[] translationMap

vMetrics

private IntHashtable vMetrics

hMetrics

private IntHashtable hMetrics

fontDesc

private HashMap fontDesc

vertical

private boolean vertical

Constructor Detail

CJKFont

CJKFont(String fontName,
       String enc,
       boolean emb)
  throws DocumentException

Creates a CJK font.

Parameters:

fontName - the name of the font

enc - the encoding of the font

emb - always false. CJK font and not embedded

Throws:

DocumentException - on error

Method Detail

loadProperties

private static void loadProperties()

isCJKFont

public static boolean isCJKFont(String fontName,
                String enc)

Checks if its a valid CJK font.

Parameters:

fontName - the font name

enc - the encoding

Returns:

true if it is CJK font

getWidth

public int getWidth(int char1)

Gets the width of a char in normalized 1000 units.

Overrides:

getWidth in class BaseFont

Parameters:

char1 - the unicode char to get the width of

Returns:

the width in normalized 1000 units

getWidth

public int getWidth(String text)

Description copied from class: BaseFont

Gets the width of a String in normalized 1000 units.

Overrides:

getWidth in class BaseFont

Parameters:

text - the String to get the width of

Returns:

the width in normalized 1000 units

getRawWidth

int getRawWidth(int c,
              String name)

Description copied from class: BaseFont

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.

Specified by:

getRawWidth in class BaseFont

Parameters:

c - the unicode char

name - the glyph name

Returns:

the width of the char

getKerning

public int getKerning(int char1,
             int char2)

Description copied from class: BaseFont

Gets the kerning between two Unicode chars.

Specified by:

getKerning in class BaseFont

Parameters:

char1 - the first char

char2 - the second char

Returns:

the kerning to be applied in normalized 1000 units

getFontDescriptor

private PdfDictionary getFontDescriptor()

getCIDFont

private PdfDictionary getCIDFont(PdfIndirectReference fontDescriptor,
                       IntHashtable cjkTag)

getFontBaseType

private PdfDictionary getFontBaseType(PdfIndirectReference CIDFont)

writeFont

void writeFont(PdfWriter writer,
             PdfIndirectReference ref,
             Object[] params)
         throws DocumentException,
                IOException

Description copied from class: BaseFont

Outputs to the writer the font dictionaries and streams.

Specified by:

writeFont in class BaseFont

Parameters:

writer - the writer for this document

ref - the font indirect reference

params - several parameters that depend on the font type

Throws:

DocumentException - error in generating the object

IOException - on error

getFullFontStream

public PdfStream getFullFontStream()

You can't get the FontStream of a CJK font (CJK fonts are never embedded), so this method always returns null.

Specified by:

getFullFontStream in class BaseFont

Returns:

null

Since:

2.1.3

getDescNumber

private float getDescNumber(String name)

getBBox

private float getBBox(int idx)

getFontDescriptor

public float getFontDescriptor(int key,
                      float fontSize)

Gets the font parameter identified by key. Valid values for key are ASCENT, CAPHEIGHT, DESCENT and ITALICANGLE.

Specified by:

getFontDescriptor in class BaseFont

Parameters:

key - the parameter to be extracted

fontSize - the font size in points

Returns:

the parameter in points

getPostscriptFontName

public String getPostscriptFontName()

Description copied from class: BaseFont

Gets the postscript font name.

Specified by:

getPostscriptFontName in class BaseFont

Returns:

the postscript font name

getFullFontName

public 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}.

Specified by:

getFullFontName in class BaseFont

Returns:

the full name of the font

getAllNameEntries

public String[][] getAllNameEntries()

Gets all the entries of the names-table. If it is a True Type font each array element will have {Name ID, 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 {"4", "", "", "", font name}.

Specified by:

getAllNameEntries in class BaseFont

Returns:

the full name of the font

getFamilyFontName

public 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}.

Specified by:

getFamilyFontName in class BaseFont

Returns:

the family name of the font

readCMap

static char[] readCMap(String name)

createMetric

static IntHashtable createMetric(String s)

convertToHCIDMetrics

static String convertToHCIDMetrics(int[] keys,
                          IntHashtable h)

convertToVCIDMetrics

static String convertToVCIDMetrics(int[] keys,
                          IntHashtable v,
                          IntHashtable h)

readFontProperties

static HashMap readFontProperties(String name)

getUnicodeEquivalent

public int getUnicodeEquivalent(int c)

Description copied from class: BaseFont

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

Overrides:

getUnicodeEquivalent in class BaseFont

Parameters:

c - the CID code

Returns:

the Unicode equivalent

getCidCode

public int getCidCode(int c)

Description copied from class: BaseFont

Gets the CID code given an Unicode. It has only meaning with CJK fonts.

Overrides:

getCidCode in class BaseFont

Parameters:

c - the Unicode

Returns:

the CID equivalent

hasKernPairs

public boolean hasKernPairs()

Checks if the font has any kerning pairs.

Specified by:

hasKernPairs in class BaseFont

Returns:

always false

charExists

public boolean charExists(int c)

Checks if a character exists in this font.

Overrides:

charExists in class BaseFont

Parameters:

c - the character to check

Returns:

true if the character has a glyph, false otherwise

setCharAdvance

public boolean setCharAdvance(int c,
                     int advance)

Sets the character advance.

Overrides:

setCharAdvance in class BaseFont

Parameters:

c - the character

advance - the character advance normalized to 1000 units

Returns:

true if the advance was set, false otherwise. Will always return false

setPostscriptFontName

public 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.

Specified by:

setPostscriptFontName in class BaseFont

Parameters:

name - the new font name

setKerning

public boolean setKerning(int char1,
                 int char2,
                 int kern)

Description copied from class: BaseFont

Sets the kerning between two Unicode chars.

Specified by:

setKerning in class BaseFont

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

getCharBBox

public int[] getCharBBox(int c)

Description copied from class: BaseFont

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].

Overrides:

getCharBBox in class BaseFont

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 int[] getRawCharBBox(int c,
                   String name)

Specified by:

getRawCharBBox in class BaseFont