Package org.apache.fontbox.cff

Class Type2CharStringParser

java.lang.Object

org.apache.fontbox.cff.Type2CharStringParser

public class Type2CharStringParser
extends Object

This class represents a converter for a mapping into a Type2-sequence.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private class	Type2CharStringParser.GlyphData

Field Summary

Fields

Modifier and Type	Field	Description
private static final int	CALLGSUBR
private static final int	CALLSUBR
private final String	fontName

Constructor Summary

Constructors

Constructor	Description
Type2CharStringParser(String fontName)	Constructs a new Type1CharStringParser object for a Type 1-equivalent font.

Method Summary

Modifier and Type	Method	Description
private int	calculateSubrNumber(int operand, int subrIndexlength)
private int	countNumbers(List<Object> sequence)
private int	getMaskLength(int hstemCount, int vstemCount)
private byte[]	getSubrBytes(byte[][] subrIndex, Type2CharStringParser.GlyphData glyphData)
List<Object>	parse(byte[] bytes, byte[][] globalSubrIndex, byte[][] localSubrIndex, String glyphName)	The given byte array will be parsed and converted to a Type2 sequence.
private void	parseSequence(byte[] bytes, byte[][] globalSubrIndex, byte[][] localSubrIndex, Type2CharStringParser.GlyphData glyphData)
private void	processCallGSubr(byte[][] globalSubrIndex, byte[][] localSubrIndex, Type2CharStringParser.GlyphData glyphData)
private void	processCallSubr(byte[][] globalSubrIndex, byte[][] localSubrIndex, Type2CharStringParser.GlyphData glyphData)
private void	processSubr(byte[][] globalSubrIndex, byte[][] localSubrIndex, byte[] subrBytes, Type2CharStringParser.GlyphData glyphData)
private CharStringCommand	readCommand(int b0, DataInput input, Type2CharStringParser.GlyphData glyphData)
private Number	readNumber(int b0, DataInput input)
String	toString()

Methods inherited from class java.lang.Object

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

Field Details

CALLSUBR

private static final int CALLSUBR

See Also:

• Constant Field Values

CALLGSUBR

private static final int CALLGSUBR

See Also:

• Constant Field Values

fontName

private final String fontName

Constructor Details

Type2CharStringParser

public Type2CharStringParser(String fontName)

Constructs a new Type1CharStringParser object for a Type 1-equivalent font.

Parameters:

fontName - font name

Method Details

parse

public List<Object> parse(byte[] bytes,
 byte[][] globalSubrIndex,
 byte[][] localSubrIndex,
 String glyphName)
                   throws IOException

The given byte array will be parsed and converted to a Type2 sequence.

Parameters:

bytes - the given mapping as byte array

globalSubrIndex - array containing all global subroutines

localSubrIndex - array containing all local subroutines

glyphName - the name of the current glyph

Returns:

the Type2 sequence

Throws:

IOException - if an error occurs during reading

parseSequence

private void parseSequence(byte[] bytes,
 byte[][] globalSubrIndex,
 byte[][] localSubrIndex,
 Type2CharStringParser.GlyphData glyphData)
                    throws IOException

Throws:

IOException

getSubrBytes

private byte[] getSubrBytes(byte[][] subrIndex,
 Type2CharStringParser.GlyphData glyphData)

processCallSubr

private void processCallSubr(byte[][] globalSubrIndex,
 byte[][] localSubrIndex,
 Type2CharStringParser.GlyphData glyphData)
                      throws IOException

Throws:

IOException

processCallGSubr

private void processCallGSubr(byte[][] globalSubrIndex,
 byte[][] localSubrIndex,
 Type2CharStringParser.GlyphData glyphData)
                       throws IOException

Throws:

IOException

processSubr

private void processSubr(byte[][] globalSubrIndex,
 byte[][] localSubrIndex,
 byte[] subrBytes,
 Type2CharStringParser.GlyphData glyphData)
                  throws IOException

Throws:

IOException

calculateSubrNumber

private int calculateSubrNumber(int operand,
 int subrIndexlength)

readCommand

private CharStringCommand readCommand(int b0,
 DataInput input,
 Type2CharStringParser.GlyphData glyphData)
                               throws IOException

Throws:

IOException

readNumber

private Number readNumber(int b0,
 DataInput input)
                   throws IOException

Throws:

IOException

getMaskLength

private int getMaskLength(int hstemCount,
 int vstemCount)

countNumbers

private int countNumbers(List<Object> sequence)

toString

public String toString()

Overrides:

toString in class Object