/*******************************************************************************
 * Copyright (c) 2000, 2009 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.swt.snippets;

/*
 * SWT StyledText snippet: using BidiSegmentEvent#segmentsChars to implement custom bidi segments
 * 
 * For a list of all SWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 * 
 * @since 3.6
 */
import org.eclipse.swt.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;
import org.eclipse.swt.custom.*;
import org.eclipse.swt.graphics.*;

public class Snippet332 {
	
	public static void main(String [] args) {
	    final Display display = new Display();
	    Shell shell = new Shell(display);
	    FillLayout layout = new FillLayout();
	    layout.marginHeight = layout.marginWidth = 10;
	    shell.setLayout(layout);
	    StyledText text = new StyledText(shell, SWT.MULTI | SWT.BORDER);
	    final String segment = "Eclipse";
	    String string = "Force RTL direction on this segment \""+segment+"\".";
	    text.setText(string);
	    int[] segments = {string.indexOf(segment), segment.length()};
	    StyleRange[] ranges = {new StyleRange(0, 0, display.getSystemColor(SWT.COLOR_RED), null)};
	    text.setStyleRanges(segments, ranges);
	    text.setFont(new Font(display, "Tahoma", 16, 0));
	    text.addBidiSegmentListener(new BidiSegmentListener() {
			public void lineGetSegments(BidiSegmentEvent event) {
				String string = event.lineText;
				int start = string.indexOf(segment);
				event.segments = new int []{start, start + segment.length()};
				event.segmentsChars = new char[] {'\u202e', '\u202C'};
			}
		});
	    shell.setSize(500, 200);
	    shell.open();
	    while (!shell.isDisposed()) {
	        if (!display.readAndDispatch()) display.sleep();
	    }
	    display.dispose();
	}
}