Package org.verapdf.pd.font.cff

Class CFFCIDFontProgram

java.lang.Object

org.verapdf.pd.font.cff.CFFCIDFontProgram

All Implemented Interfaces:

FontProgram

public class CFFCIDFontProgram
extends Object
implements FontProgram

Instance of this class represent a parser of CIDFont from FontSet of CFF file.

Author:

Sergey Shemyakov

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	attemptedParsing
protected long	charSetOffset
protected CFFIndex	charStrings
protected long	charStringsOffset
protected int	charStringType
protected static float[]	DEFAULT_FONT_MATRIX
protected int	defaultWidthX
protected CFFIndex	definedNames
protected float[]	fontMatrix
protected CFFIndex	globalSubrs
protected boolean	isSubset
protected int	nGlyphs
protected int	nominalWidthX
protected long	privateDictOffset
protected long	privateDictSize
protected SeekableInputStream	source
protected ArrayList<CFFNumber>	stack
protected long	subrsOffset
protected boolean	successfullyParsed
protected long	topDictBeginOffset
protected long	topDictEndOffset
protected String	weight
protected CharStringsWidths	widths

Method Summary

Modifier and Type	Method	Description
boolean	containsCID(int cid)	Method works only for fonts where cid notation is used.
boolean	containsCode(int code)	Checks if font contains character with given code.
boolean	containsGlyph(String glyphName)	Checks if this font program has glyph for given glyph name.
Double	getAscent()
List<Integer>	getCIDList()
Double	getDescent()
ASFileStreamCloser	getFontProgramResource()
String	getGlyphName(int code)	Returns glyph name for glyph with given code.
int	getNGlyphs()
String	getOrdering()
String	getRegistry()
protected String	getStringBySID(int sid)
int	getSupplement()
String	getWeight()
float	getWidth(int code)	Returns width of glyph for given character code.
float	getWidth(String glyphName)	Returns width of glyph for given glyph name.
boolean	isAttemptedParsing()
boolean	isSuccessfulParsing()
void	parseFont()	This method does parsing of font, after it all the data needed should be extracted.
protected int	readCard16()
protected int	readCard8()
protected void	readCharStrings()
protected void	readHeader()
protected CFFIndex	readIndex()
protected CFFNumber	readNumber()
protected void	readPrivateDictUnit()
protected void	readTopDictOneByteOps(int lastRead)
protected void	readTopDictTwoByteOps(int lastRead)
protected void	readTopDictUnit()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.verapdf.pd.font.FontProgram

getFontProgramResource, getWeight

Field Detail

attemptedParsing

protected boolean attemptedParsing

successfullyParsed

protected boolean successfullyParsed

DEFAULT_FONT_MATRIX

protected static final float[] DEFAULT_FONT_MATRIX

stack

protected ArrayList<CFFNumber> stack

globalSubrs

protected CFFIndex globalSubrs

isSubset

protected boolean isSubset

privateDictOffset

protected long privateDictOffset

privateDictSize

protected long privateDictSize

topDictBeginOffset

protected long topDictBeginOffset

topDictEndOffset

protected long topDictEndOffset

fontMatrix

protected float[] fontMatrix

charStringsOffset

protected long charStringsOffset

charSetOffset

protected long charSetOffset

charStringType

protected int charStringType

weight

protected String weight

nGlyphs

protected int nGlyphs

charStrings

protected CFFIndex charStrings

widths

protected CharStringsWidths widths

defaultWidthX

protected int defaultWidthX

nominalWidthX

protected int nominalWidthX

subrsOffset

protected long subrsOffset

source

protected SeekableInputStream source

definedNames

protected CFFIndex definedNames

Method Detail

parseFont

public void parseFont()
               throws IOException

This method does parsing of font, after it all the data needed should be extracted.

Specified by:

parseFont in interface FontProgram

Throws:

IOException - if error in font parsing occurs.

readTopDictTwoByteOps

protected void readTopDictTwoByteOps(int lastRead)
                              throws IOException

Throws:

IOException

getWidth

public float getWidth(int code)

Returns width of glyph for given character code.

Specified by:

getWidth in interface FontProgram

Parameters:

code - is code for glyph.

Returns:

width of corresponding glyph or -1 if glyph is not found.

getWidth

public float getWidth(String glyphName)

Returns width of glyph for given glyph name.

Specified by:

getWidth in interface FontProgram

Parameters:

glyphName - is name for glyph.

Returns:

width of corresponding glyph or -1 if glyph is not found.

getGlyphName

public String getGlyphName(int code)

Description copied from interface: FontProgram

Returns glyph name for glyph with given code.

Specified by:

getGlyphName in interface FontProgram

Parameters:

code - is code of glyph.

Returns:

glyph name.

getAscent

public Double getAscent()

Specified by:

getAscent in interface FontProgram

getDescent

public Double getDescent()

Specified by:

getDescent in interface FontProgram

containsCode

public boolean containsCode(int code)

Checks if font contains character with given code.

Specified by:

containsCode in interface FontProgram

Parameters:

code - is character code.

Returns:

true if font contains character with given code.

containsGlyph

public boolean containsGlyph(String glyphName)

Description copied from interface: FontProgram

Checks if this font program has glyph for given glyph name.

Specified by:

containsGlyph in interface FontProgram

Parameters:

glyphName - is the name of glyph.

Returns:

true if this font program has glyph for given name.

containsCID

public boolean containsCID(int cid)

Description copied from interface: FontProgram

Method works only for fonts where cid notation is used.

Specified by:

containsCID in interface FontProgram

Returns:

true if font a is cid font and contains given cid.

getSupplement

public int getSupplement()

getRegistry

public String getRegistry()

getOrdering

public String getOrdering()

isAttemptedParsing

public boolean isAttemptedParsing()

Specified by:

isAttemptedParsing in interface FontProgram

Returns:

true if font parsing has been attempted.

isSuccessfulParsing

public boolean isSuccessfulParsing()

Specified by:

isSuccessfulParsing in interface FontProgram

Returns:

true if font was successfully parsed.

getCIDList

public List<Integer> getCIDList()

readTopDictUnit

protected void readTopDictUnit()
                        throws IOException

Throws:

IOException

readTopDictOneByteOps

protected void readTopDictOneByteOps(int lastRead)

readCharStrings

protected void readCharStrings()
                        throws IOException

Throws:

IOException

readPrivateDictUnit

protected void readPrivateDictUnit()
                            throws IOException

Throws:

IOException

getNGlyphs

public int getNGlyphs()

Returns:

amount of glyphs in the font.

getFontProgramResource

public ASFileStreamCloser getFontProgramResource()

getWeight

public String getWeight()

readCard8

protected int readCard8()
                 throws IOException

Throws:

IOException

readCard16

protected int readCard16()
                  throws IOException

Throws:

IOException

readIndex

protected CFFIndex readIndex()
                      throws IOException

Throws:

IOException

readHeader

protected void readHeader()
                   throws IOException

Throws:

IOException

readNumber

protected CFFNumber readNumber()
                        throws IOException

Throws:

IOException

getStringBySID

protected String getStringBySID(int sid)
                         throws IOException

Throws:

IOException