Package org.verapdf.pd.font.truetype

Class BaseTrueTypeProgram

java.lang.Object

org.verapdf.pd.font.truetype.BaseTrueTypeProgram

All Implemented Interfaces:

FontProgram

Direct Known Subclasses:

CIDFontType2Program, TrueTypeFontProgram

public abstract class BaseTrueTypeProgram
extends Object
implements FontProgram

Base class for TrueTypeFontProgram and CIDFontType2Program.

Author:

Sergey Shemyakov

Field Summary

Fields

Modifier and Type	Field	Description
protected String[]	encodingMappingArray
protected org.verapdf.pd.font.truetype.TrueTypeFontParser	parser
protected float[]	widths

Constructor Summary

Constructors

Constructor	Description
BaseTrueTypeProgram(ASInputStream stream)	Constructor from stream containing font data, and encoding details.

Method Summary

Modifier and Type	Method	Description
Double	getAscent()
Double	getDescent()
ASFileStreamCloser	getFontProgramResource()
int	getNGlyphs()
int	getNrOfCMaps()
String	getWeight()
protected float	getWidthWithCheck(int gid)
boolean	isAttemptedParsing()
boolean	isCmapPresent(int platformID, int encodingID)	Returns true if cmap table with given platform ID and encoding ID is present in the font.
boolean	isSuccessfulParsing()
void	parseFont()	Parses True Type font from given stream and extracts all the data needed.

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

containsCID, containsCode, containsGlyph, getGlyphName, getWidth, getWidth

Field Detail

widths

protected float[] widths

parser

protected org.verapdf.pd.font.truetype.TrueTypeFontParser parser

encodingMappingArray

protected String[] encodingMappingArray

Constructor Detail

BaseTrueTypeProgram

public BaseTrueTypeProgram(ASInputStream stream)
                    throws IOException

Constructor from stream containing font data, and encoding details.

Parameters:

stream - is stream containing font data.

Throws:

IOException - if creation of @{link SeekableStream} fails.

Method Detail

parseFont

public void parseFont()
               throws IOException

Parses True Type font from given stream and extracts all the data needed.

Specified by:

parseFont in interface FontProgram

Throws:

IOException - if stream-reading error occurs.

getNrOfCMaps

public int getNrOfCMaps()

Returns:

array, containing platform ID and encoding ID for each cmap in this True Type font.

getNGlyphs

public int getNGlyphs()

Returns:

number of glyphs in this font.

isCmapPresent

public boolean isCmapPresent(int platformID,
                             int encodingID)

Returns true if cmap table with given platform ID and encoding ID is present in the font.

Parameters:

platformID - is platform ID of requested cmap.

encodingID - is encoding ID of requested cmap.

Returns:

true if requested cmap is present.

getWidthWithCheck

protected float getWidthWithCheck(int gid)

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.

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