/**
* Copyright (c) 2013, Institute of Information Systems (Sven Groppe and contributors of LUPOSDATE), University of Luebeck
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
* following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice, this list of conditions and the following
* disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
* following disclaimer in the documentation and/or other materials provided with the distribution.
* - Neither the name of the University of Luebeck nor the names of its contributors may be used to endorse or promote
* products derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package lupos.gui.operatorgraph.visualeditor.visualrif.util;
import java.awt.FontMetrics;
import java.util.LinkedList;
import java.util.regex.MatchResult;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyledDocument;
import javax.swing.text.TabSet;
import javax.swing.text.TabStop;
import lupos.gui.anotherSyntaxHighlighting.LuposDocument;
import lupos.gui.anotherSyntaxHighlighting.LuposJTextPane;
public class VisualRifJTextPane extends LuposJTextPane {
private static final long serialVersionUID = 1L;
private LuposDocument doc = null;
private int tabWidth;
/**
* Constructor for LuposJTextPane
*/
public VisualRifJTextPane() {
super();
}
/**
* Constructor for LuposJTextPane
* @param doc StyledDocument
*/
public VisualRifJTextPane(final StyledDocument doc) {
super(doc);
}
/**
* Constructor for LuposJTextPane
* @param doc {@link LuposDocument}
*/
public VisualRifJTextPane(final LuposDocument doc) {
super(doc);
this.doc = doc;
this.doc.setLuposJTextPane(this);
}
public void setTabWidth(int charactersPerTab) {
this.tabWidth = charactersPerTab;
FontMetrics fm = getFontMetrics(getFont());
int charWidth = fm.charWidth('w');
int tabWidth = charWidth * charactersPerTab;
TabStop[] tabs = new TabStop[50];
for(int j = 0; j < tabs.length; j++) {
int tab = j + 1;
tabs[j] = new TabStop(tab * tabWidth);
}
TabSet tabSet = new TabSet(tabs);
SimpleAttributeSet attributes = new SimpleAttributeSet();
StyleConstants.setTabSet(attributes, tabSet);
int length = getDocument().getLength();
getStyledDocument().setParagraphAttributes(0, length, attributes, false);
}
public void setText(String text){
final StringBuffer sb = new StringBuffer();
char tab = '\t';
sb.append(text);
LinkedList<MatchResult> results = findMatches( "\n", sb );
for (int i = 1; i <= results.size(); i++) {
int tabCNT = calculateTab(results.get(results.size()-i).end(),sb);
for (int j = 0; j < tabCNT; j++) {
sb.insert(results.get(results.size()-(i)).end(), tab);
}
}
super.setText(sb.toString());
}
private int calculateTab(int start, StringBuffer sb) {
String subString = sb.substring(0, start);
Pattern bracketOpenPattern = Pattern.compile( "\\(" );
Pattern bracketClosePattern = Pattern.compile( "\\)" );
Matcher matcherOpen = bracketOpenPattern.matcher(subString);
Matcher matcherClose = bracketClosePattern.matcher(subString);
int openbracket = 0;
int closebracket = 0;
while(matcherOpen.find())openbracket++;
while(matcherClose.find())closebracket = closebracket+1;
return (openbracket - closebracket);
}
static LinkedList<MatchResult> findMatches( String pattern, CharSequence s )
{
LinkedList<MatchResult> results = new LinkedList<MatchResult>();
for ( Matcher m = Pattern.compile(pattern).matcher(s); m.find(); )
results.add( m.toMatchResult() );
return results;
}
}