com.codemesh.terp.util
Class TextLayoutEngine

java.lang.Object
  com.codemesh.terp.util.TextLayoutEngine

All Implemented Interfaces:

java.util.Iterator<java.lang.String>

public class TextLayoutEngine
extends java.lang.Object
implements java.util.Iterator<java.lang.String>

The engine that performs the text layout on behalf of the terp expander.

Nested Class Summary

static class	TextLayoutEngine.Break
static class	TextLayoutEngine.LayoutRelevantData

Field Summary

static java.util.regex.Pattern	NEWLINE
static java.util.regex.Pattern	PREFERRED_ADD

Constructor Summary

TextLayoutEngine()

Method Summary

java.lang.String	append(java.lang.String text, TextLayoutEngine.LayoutRelevantData data)
java.util.List<java.lang.String>	breakLine(TextLayoutEngine.LayoutRelevantData firstData)
boolean	containsEOL(java.lang.String text)
boolean	endsWithEOL(java.lang.String text)
void	formatLine()
int	getAnchor()
java.lang.StringBuilder	getBuffer(TextLayoutEngine.LayoutRelevantData data)
boolean	hasNext()
protected TextLayoutEngine.Break	identifyBreak(java.lang.CharSequence seq, int index)
java.lang.String	next()
void	remove()
void	resetAnchor()
void	setAnchor()
java.util.List<com.codemesh.terp.util.TextLayoutEngine.Segment>	toSegments(java.lang.String text, TextLayoutEngine.LayoutRelevantData data)
void	treatLine(TextLayoutEngine.LayoutRelevantData firstData, boolean bBlockJustify) Takes the accumulated linebuffers (left,right,center) and assembles them into a line, taking the layout data into account.

Methods inherited from class java.lang.Object

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

Field Detail

PREFERRED_ADD

public static final java.util.regex.Pattern PREFERRED_ADD

NEWLINE

public static final java.util.regex.Pattern NEWLINE

Constructor Detail

TextLayoutEngine

public TextLayoutEngine()

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface java.util.Iterator<java.lang.String>

next

public java.lang.String next()

Specified by:

next in interface java.util.Iterator<java.lang.String>

remove

public void remove()

Specified by:

remove in interface java.util.Iterator<java.lang.String>

append

public java.lang.String append(java.lang.String text,
                               TextLayoutEngine.LayoutRelevantData data)

toSegments

public java.util.List<com.codemesh.terp.util.TextLayoutEngine.Segment> toSegments(java.lang.String text,
                                                                                  TextLayoutEngine.LayoutRelevantData data)

setAnchor

public void setAnchor()

getAnchor

public int getAnchor()

resetAnchor

public void resetAnchor()

formatLine

public void formatLine()

breakLine

public java.util.List<java.lang.String> breakLine(TextLayoutEngine.LayoutRelevantData firstData)

identifyBreak

protected TextLayoutEngine.Break identifyBreak(java.lang.CharSequence seq,
                                               int index)

treatLine

public void treatLine(TextLayoutEngine.LayoutRelevantData firstData,
                      boolean bBlockJustify)

Takes the accumulated linebuffers (left,right,center) and assembles them into a line, taking the layout data into account. The firstData parameter is used to pass the information that was in force at the beginning of the line.

Parameters:

firstData - the layout data of the first segment in that line.

bBlockJustify - add spaces if necessary.

getBuffer

public java.lang.StringBuilder getBuffer(TextLayoutEngine.LayoutRelevantData data)

containsEOL

public boolean containsEOL(java.lang.String text)

endsWithEOL

public boolean endsWithEOL(java.lang.String text)