org.extex.font.format.dvi.command
Class DviCommand

java.lang.Object
  org.extex.font.format.dvi.command.DviCommand

Direct Known Subclasses:

DviBOP, DviChar, DviDown, DviEOP, DviFntDef, DviFntNum, DviNOP, DviPOP, DviPost, DviPostPost, DviPre, DviPush, DviRight, DviRule, DviW, DviX, DviXXX, DviY, DviZ

public abstract class DviCommand
extends java.lang.Object

Abstract class for all DVI commands.

Version:

$Revision: 6099 $

Author:

Michael Niedermair

Field Summary

static int

BOP_LENGTH The length of c elements of the bob command.

Constructor Summary

protected

DviCommand(int opcode, int sp) Create a new object.

Method Summary

static java.util.List<DviFntDef>	getFntDefs(RandomAccessR rar) Read the fnt_def commands.
abstract java.lang.String	getName() Returns the name of the command.
static DviCommand	getNextCommand(RandomAccessR rar) Reads the next dvi command.
int	getOpcode() Returns the opcode of the command.
static DviPost	getPost(RandomAccessR rar) Reads the DviPost command.
static DviPre	getPre(RandomAccessR rar) Reads the DviPre command.
int	getStartPointer() Returns the start pointer of the command.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

BOP_LENGTH

public static final int BOP_LENGTH

The length of c elements of the bob command.

See Also:

Constant Field Values

Constructor Detail

DviCommand

protected DviCommand(int opcode,
                     int sp)

Create a new object.

Parameters:

opcode - the opcode

sp - the start pointer

Method Detail

getNextCommand

public static DviCommand getNextCommand(RandomAccessR rar)
                                 throws java.io.IOException,
                                        FontException,
                                        ConfigurationException

Reads the next dvi command.

Parameters:

rar - the input

Returns:

Returns the next command

Throws:

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

FontException - if a font-error occurs.

ConfigurationException

getPost

public static DviPost getPost(RandomAccessR rar)
                       throws java.io.IOException,
                              FontException,
                              ConfigurationException

Reads the DviPost command.

Parameters:

rar - the input

Returns:

Returns the DviPost command

Throws:

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

FontException - if a font-error occurs.

ConfigurationException

getPre

public static DviPre getPre(RandomAccessR rar)
                     throws java.io.IOException,
                            FontException,
                            ConfigurationException

Reads the DviPre command.

Parameters:

rar - the input

Returns:

Returns the DviPre command

Throws:

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

FontException - if a font-error occurs.

ConfigurationException

getFntDefs

public static java.util.List<DviFntDef> getFntDefs(RandomAccessR rar)
                                            throws java.io.IOException,
                                                   FontException

Read the fnt_def commands.

The post commands must read before!

Parameters:

rar - the input

Returns:

Returns the fnt_def commands.

Throws:

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

FontException - if a font-error occurs.

getOpcode

public int getOpcode()

Returns the opcode of the command.

Returns:

Returns the opcode of the command.

getStartPointer

public int getStartPointer()

Returns the start pointer of the command.

Returns:

Returns the start pointer of the command.

getName

public abstract java.lang.String getName()

Returns the name of the command.

Returns:

Returns the name of the command.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object