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 and Description
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 CFFIndex	localSubrIndex
protected int	nGlyphs
protected int	nominalWidthX
protected long	privateDictOffset
protected long	privateDictSize
protected SeekableStream	source
protected ArrayList<CFFNumber>	stack
protected long	subrsOffset
protected long	topDictBeginOffset
protected long	topDictEndOffset
protected float[]	widths

Method Summary

Methods

Modifier and Type	Method and Description
boolean	containsCode(int code) Checks if font contains character with given ID.
Integer	getGid(int cid) Gets glyph ID for given character ID.
int	getNGlyphs()
String	getOrdering()
String	getRegistry()
protected String	getStringBySID(int sid)
int	getSupplement()
float	getWidth(int code) Returns width of glyph for given character code.
float	getWidth(String glyphName) Returns width of glyph for given glyph name.
protected CFFNumber	getWidthFromCharString(byte[] charString)
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 void	readLocalSubrsAndBias()
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

Field Detail

DEFAULT_FONT_MATRIX

protected static final float[] DEFAULT_FONT_MATRIX

stack

protected ArrayList<CFFNumber> stack

globalSubrs

protected CFFIndex globalSubrs

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

nGlyphs

protected int nGlyphs

charStrings

protected CFFIndex charStrings

widths

protected float[] widths

defaultWidthX

protected int defaultWidthX

nominalWidthX

protected int nominalWidthX

subrsOffset

protected long subrsOffset

localSubrIndex

protected CFFIndex localSubrIndex

source

protected SeekableStream 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

getGid

public Integer getGid(int cid)

Gets glyph ID for given character ID.

Parameters:

cid - is character ID.

Returns:

glyph ID or null if character is not in font.

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.

containsCode

public boolean containsCode(int code)

Checks if font contains character with given ID.

Specified by:

containsCode in interface FontProgram

Parameters:

code - is character code.

Returns:

true if font contains character with given ID.

getSupplement

public int getSupplement()

getRegistry

public String getRegistry()

getOrdering

public String getOrdering()

readTopDictUnit

protected void readTopDictUnit()
                        throws IOException

Throws:

IOException

readTopDictOneByteOps

protected void readTopDictOneByteOps(int lastRead)
                              throws IOException

Throws:

IOException

readCharStrings

protected void readCharStrings()
                        throws IOException

Throws:

IOException

readPrivateDictUnit

protected void readPrivateDictUnit()
                            throws IOException

Throws:

IOException

readLocalSubrsAndBias

protected void readLocalSubrsAndBias()
                              throws IOException

Throws:

IOException

getWidthFromCharString

protected CFFNumber getWidthFromCharString(byte[] charString)
                                    throws IOException

Throws:

IOException

getNGlyphs

public int getNGlyphs()

Returns:

amount of glyphs in the font.

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