org.extex.typesetter.type.node
Class DiscretionaryNode

java.lang.Object
  org.extex.typesetter.type.node.AbstractNode
      org.extex.typesetter.type.node.DiscretionaryNode

All Implemented Interfaces:

java.io.Serializable, Node

public class DiscretionaryNode
extends AbstractNode
implements Node

This node represents a glyph which can be broken if required.

Version:

$Revision: 4739 $

Author:

Gerd Neugebauer, Michael Niedermair

See Also:

"TeX – The Program [145]", Serialized Form

Field Summary

protected static long

serialVersionUID The constant serialVersionUID contains the id for serialization.

Fields inherited from class org.extex.typesetter.type.node.AbstractNode

NO_CHARS

Constructor Summary

DiscretionaryNode(NodeList pre, NodeList post, NodeList no)
Creates a new object.

Method Summary

NodeList	getNoBreak() Getter for noBreak.
NodeList	getPostBreak() Getter for postBreak.
NodeList	getPreBreak() Getter for preBreak.
void	toString(java.lang.StringBuffer sb, java.lang.String prefix, int breadth, int depth) This method returns the printable representation.
void	toText(java.lang.StringBuffer sb, java.lang.String prefix) This method puts the printable representation into the string buffer.
java.lang.Object	visit(NodeVisitor visitor, java.lang.Object value) This method provides an entry point for the visitor pattern.

Methods inherited from class org.extex.typesetter.type.node.AbstractNode

addDepthTo, addHeightTo, addWidthTo, advanceNaturalDepth, advanceNaturalHeight, advanceNaturalWidth, atShipping, clone, computeAdjustment, countChars, getChars, getDepth, getHeight, getLocalizer, getNaturalDepth, getNaturalHeight, getNaturalWidth, getVerticalSize, getWidth, maxDepth, maxHeight, maxWidth, setDepth, setHeight, setWidth, spreadHeight, spreadWidth, toString, toText

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.extex.typesetter.type.Node

addDepthTo, addHeightTo, addWidthTo, atShipping, countChars, getChars, getDepth, getHeight, getNaturalDepth, getNaturalHeight, getNaturalWidth, getVerticalSize, getWidth, setDepth, setHeight, setWidth, spreadHeight, spreadWidth

Field Detail

serialVersionUID

protected static final long serialVersionUID

The constant serialVersionUID contains the id for serialization.

See Also:

Constant Field Values

Constructor Detail

DiscretionaryNode

public DiscretionaryNode(NodeList pre,
                         NodeList post,
                         NodeList no)

Creates a new object.

Parameters:

pre - the Tokens to be inserted at the end of the line in case of a line breaking at this position.

post - the Tokens to be inserted at the beginning of th next line in case of a line breaking at this position.

no - the Tokens to be inserted in case of no line breaking at this position.

Method Detail

getNoBreak

public NodeList getNoBreak()

Getter for noBreak.

Returns:

the noBreak.

getPostBreak

public NodeList getPostBreak()

Getter for postBreak.

Returns:

the postBreak.

getPreBreak

public NodeList getPreBreak()

Getter for preBreak.

Returns:

the preBreak.

toString

public void toString(java.lang.StringBuffer sb,
                     java.lang.String prefix,
                     int breadth,
                     int depth)

This method returns the printable representation. This is meant to produce a exhaustive form as it is used in tracing output to the log file.

Specified by:

toString in interface Node

Overrides:

toString in class AbstractNode

Parameters:

sb - the target buffer

prefix - the prefix for each new line

breadth - the breadth

depth - the depth

See Also:

"TeX – The Program [195]", Node.toString( java.lang.StringBuffer, java.lang.String, int, int)

toText

public void toText(java.lang.StringBuffer sb,
                   java.lang.String prefix)

This method puts the printable representation into the string buffer. This is meant to produce a short form only as it is used in error messages to the user.

Specified by:

toText in interface Node

Overrides:

toText in class AbstractNode

Parameters:

sb - the output string buffer

prefix - the prefix string inserted at the beginning of each line

See Also:

Node.toText( java.lang.StringBuffer, java.lang.String)

visit

public java.lang.Object visit(NodeVisitor visitor,
                              java.lang.Object value)
                       throws GeneralException

This method provides an entry point for the visitor pattern.

Specified by:

visit in interface Node

Parameters:

visitor - the visitor to apply

value - the argument for the visitor

Returns:

the result of the method invocation of the visitor

Throws:

GeneralException - in case of an error

See Also:

Node.visit( org.extex.typesetter.type.NodeVisitor, java.lang.Object)