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/*******************************************************************************
* Copyright (c) 2000, 2016 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.snippets;
/*
* SWT StyledText and Combo snippet: using BidiSegmentListener and
* SegmentListener to implement custom bidi segments, such as right-to-left
* override
*
* Note that SegmentListener in the Combo widget is supported since 4.4 and
* currently only on win32 platform
*
* 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.custom.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;
public class Snippet332 {
public static void main(String [] args) {
final Display display = new Display();
Shell shell = new Shell(display);
shell.setText("Snippet 332");
GridLayout layout = new GridLayout();
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);
Font font = new Font(display, "Tahoma", 16, 0);
text.setFont(font);
text.addBidiSegmentListener(event -> {
String string1 = event.lineText;
int start = string1.indexOf(segment);
event.segments = new int []{start, start + segment.length()};
event.segmentsChars = new char[] {'\u202e', '\u202C'};
});
Combo combo = new Combo(shell, SWT.SIMPLE);
combo.setFont(font);
combo.setBackground(display.getSystemColor(SWT.COLOR_YELLOW));
combo.setItems("Option 1...", "Option 2...", "Option 3...", "Option 4...");
combo.select(1);
combo.addSegmentListener(event -> {
event.segments = new int [] {0, event.lineText.length()};
event.segmentsChars = new char [] {'\u202e', '\u202c'};
});
shell.setSize(500, 250);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) display.sleep();
}
font.dispose();
display.dispose();
}
}
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