org.extex.unit.tex.typesetter.displace
Class Lower

java.lang.Object
  org.extex.interpreter.type.AbstractCode
      org.extex.unit.tex.typesetter.box.AbstractBoxPrimitive
          org.extex.unit.tex.typesetter.displace.Lower

All Implemented Interfaces:

java.io.Serializable, Boxable, BoxOrRule, Code

public class Lower
extends AbstractBoxPrimitive

This class provides an implementation for the primitive \lower.

The Primitive \lower

The primitive \lower takes a box and a length and shifts down the amount specified by the length. If the length is negative then the shift is done upwards.

The primitive \lower is the counterpart to \raise.

Syntax

The formal description of this primitive is the following:

    ⟨lower⟩
      → \lower ⟨dimen⟩ ⟨box⟩ 

Examples

    \lower 2em \hbox{abc}  

    \lower -1pt \hbox to 120pt {abc}  

    \lower 2mm \hbox spread 12pt {abc}  

Version:

$Revision:4431 $

Author:

Gerd Neugebauer

See Also:

Serialized Form

Field Summary

protected static long

serialVersionUID The constant serialVersionUID contains the id for serialization.

Constructor Summary

Lower(CodeToken token)
Creates a new object.

Method Summary

Box	getBox(Context context, TokenSource source, Typesetter typesetter, Token insert) Getter for the content as Box.

Methods inherited from class org.extex.unit.tex.typesetter.box.AbstractBoxPrimitive

execute

Methods inherited from class org.extex.interpreter.type.AbstractCode

getLocalizer, getName, getToken, isIf, isOuter, readResolve, toString, toText, toText

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

protected static final long serialVersionUID

The constant serialVersionUID contains the id for serialization.

See Also:

Constant Field Values

Constructor Detail

Lower

public Lower(CodeToken token)

Creates a new object.

Parameters:

token - the initial token for the primitive

Method Detail

getBox

public Box getBox(Context context,
                  TokenSource source,
                  Typesetter typesetter,
                  Token insert)
           throws HelpingException,
                  TypesetterException

Getter for the content as Box.

Parameters:

context - the interpreter context

source - the source for new tokens

typesetter - the typesetter to use

insert - the token to insert either at the beginning of the box or after the box has been gathered. If it is null then nothing is inserted

Returns:

an appropriate Box

Throws:

HelpingException - in case of an error

TypesetterException - in case of an error in the typesetter

See Also:

BoxPrimitive.getBox( org.extex.interpreter.context.Context, org.extex.interpreter.TokenSource, org.extex.typesetter.Typesetter, org.extex.scanner.type.token.Token)