org.extex.font.format.xtf.tables.cff
Class T2Operator

java.lang.Object
  org.extex.font.format.xtf.tables.cff.T2CharString
      org.extex.font.format.xtf.tables.cff.T2Operator

All Implemented Interfaces:

XMLWriterConvertible

Direct Known Subclasses:

T2Arithmetic, T2Conditional, T2Dummy, T2EndChar, T2FinishingPath, T2Hints, T2PathConstruction, T2Storage, T2Subroutine, T2TopDICTOperator

public abstract class T2Operator
extends T2CharString
implements XMLWriterConvertible

Operator.

Version:

$Revision: 6604 $

Author:

Michael Niedermair

Field Summary

Fields inherited from class org.extex.font.format.xtf.tables.cff.T2CharString

ESCAPE, ESCAPE_BYTE, T2CALLGSUBR, T2CALLSUBR, T2CNTRMASK, T2ENDCHAR, T2FLEX, T2FLEX1, T2HFLEX, T2HFLEX1, T2HHCURVETO, T2HINTMASK, T2HLINETO, T2HMOVETO, T2HSTEM, T2HSTEMHM, T2HVCURVETO, T2RCURVELINE, T2RETURN, T2RLINECURVE, T2RLINETO, T2RMOVETO, T2RRCURVETO, T2VHCURVETO, T2VLINETO, T2VMOVETO, T2VSTEM, T2VSTEMHM, T2VVCURVETO, TYPE_CALLGSUBR, TYPE_CALLSUBR, TYPE_CNTRMASK, TYPE_ENDCHAR, TYPE_FLEX, TYPE_FLEX1, TYPE_HFLEX, TYPE_HFLEX1, TYPE_HHCURVETO, TYPE_HINTMASK, TYPE_HLINETO, TYPE_HMOVETO, TYPE_HSTEM, TYPE_HSTEMHM, TYPE_HVCURVETO, TYPE_RCURVELINE, TYPE_RETURN, TYPE_RLINECURVE, TYPE_RLINETO, TYPE_RMOVETO, TYPE_RRCURVETO, TYPE_VHCURVETO, TYPE_VLINETO, TYPE_VMOVETO, TYPE_VSTEM, TYPE_VSTEMHM, TYPE_VVCURVETO

Constructor Summary

protected

T2Operator() Create a new object.

Method Summary

protected T2Number	checkWidth(java.util.List<T2CharString> stack, CharString ch) Check, if a width is set.
protected short[]	convertStackaddID(java.util.List<? extends T2CharString> stack, short[] id) Convert a stack (a List) into an array and add at the top the id-array.
abstract int	getID() Returns the id of the operator.
abstract java.lang.String	getName() Return the name of the operator.
abstract java.lang.Object	getValue() Returns the value of the operator.
void	init(RandomAccessR rar, OtfTableCFF cff, int baseoffset, CffFont cffFont) Initialize.
boolean	isOperator() Check, if the object is an operator.
static T2Operator	newInstance(RandomAccessR rar, CharString ch) Create a new instance.
java.lang.String	toString()
java.lang.String	toText() Returns a test string from the command.

Methods inherited from class org.extex.font.format.xtf.tables.cff.T2CharString

getBytes, getInitPrio, isArray, isBoolean, isDouble, isEscape, isInteger, isTopDICTOperator, readNumber, readNumber, readSID, readTopDICTOperator

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.extex.util.xml.XMLWriterConvertible

writeXML

Constructor Detail

T2Operator

protected T2Operator()

Create a new object.

Method Detail

newInstance

public static T2Operator newInstance(RandomAccessR rar,
                                     CharString ch)
                              throws java.io.IOException

Create a new instance.

Parameters:

rar - the input

ch - The charstring

Returns:

Returns the new T2Operatorr object.

Throws:

java.io.IOException - if an IO-error occurs.

checkWidth

protected T2Number checkWidth(java.util.List<T2CharString> stack,
                              CharString ch)
                       throws T2MissingNumberException

Check, if a width is set.

The first stack-clearing operator, which must be one of hstem, hstemhm, vstem, vstemhm, cntrmask, hintmask, hmoveto, vmoveto, rmoveto, or endchar, takes an additional argument - the width (as described earlier), which may be expressed as zero or one numeric argument.

Parameters:

stack - The stack.

ch - The char string.

Returns:

Returns the with or null, if no exists.

Throws:

T2MissingNumberException - if a error occurred.

convertStackaddID

protected short[] convertStackaddID(java.util.List<? extends T2CharString> stack,
                                    short[] id)

Convert a stack (a List) into an array and add at the top the id-array.

Parameters:

stack - the stack

id - the id-array

Returns:

Return the byte-array

getID

public abstract int getID()

Returns the id of the operator.

Returns:

Returns the id of the operator.

getName

public abstract java.lang.String getName()

Return the name of the operator.

Returns:

Return the name of the operator.

getValue

public abstract java.lang.Object getValue()

Returns the value of the operator.

Returns:

Returns the value of the operator.

init

public void init(RandomAccessR rar,
                 OtfTableCFF cff,
                 int baseoffset,
                 CffFont cffFont)
          throws java.io.IOException

Initialize.

Specified by:

init in class T2CharString

Parameters:

rar - The input

cff - The cff table

baseoffset - The base offset from cff.

cffFont - The cff font.

Throws:

java.io.IOException - if an IO-error occurred.

See Also:

T2CharString.init( org.extex.util.file.random.RandomAccessR, org.extex.font.format.xtf.tables.OtfTableCFF, int, org.extex.font.format.xtf.tables.cff.CffFont)

isOperator

public boolean isOperator()

Check, if the object is an operator.

Overrides:

isOperator in class T2CharString

Returns:

Returns true, if the object is an operator.

See Also:

T2CharString.isOperator()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

See Also:

Object.toString()

toText

public java.lang.String toText()

Returns a test string from the command.

Returns:

Returns a text string from the command.