Package org.verapdf.pd.font.opentype

Class OpenTypeFontProgram

java.lang.Object

org.verapdf.pd.font.opentype.OpenTypeFontProgram

All Implemented Interfaces:

FontProgram

public class OpenTypeFontProgram
extends Object
implements FontProgram

Represents OpenType font program.

Author:

Sergey Shemyakov

Constructor Summary

Constructors

Constructor	Description
OpenTypeFontProgram(ASInputStream source, boolean isCFF, boolean isSymbolic, COSObject encoding, CMap externalCMap, boolean isSubset)	Constructor from stream, containing font data, and encoding details.

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()
Double	getDescent()
FontProgram	getFont()
ASFileStreamCloser	getFontProgramResource()
String	getGlyphName(int code)	Returns glyph name for glyph with given code.
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.

Methods inherited from class java.lang.Object

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

Constructor Detail

OpenTypeFontProgram

public OpenTypeFontProgram(ASInputStream source,
                           boolean isCFF,
                           boolean isSymbolic,
                           COSObject encoding,
                           CMap externalCMap,
                           boolean isSubset)

Constructor from stream, containing font data, and encoding details.

Parameters:

source - is stream containing font data.

isSymbolic - is true if font is marked as symbolic.

encoding - is value of /Encoding in font dictionary.

Method Detail

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 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.

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.

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.

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.

getFont

public FontProgram getFont()

Returns:

CFF font or TrueType font, represented by this OpenType font.

getFontProgramResource

public ASFileStreamCloser getFontProgramResource()

Specified by:

getFontProgramResource in interface FontProgram

Returns:

file stream closer that handles the closing of font program stream or null if stream is memory stream.

getWeight

public String getWeight()

Specified by:

getWeight in interface FontProgram

getAscent

public Double getAscent()

Specified by:

getAscent in interface FontProgram

getDescent

public Double getDescent()

Specified by:

getDescent in interface FontProgram