1 /*******************************************************************************
2  * Copyright (c) 2018 Red Hat and others. All rights reserved.
3  * The contents of this file are made available under the terms
4  * of the GNU Lesser General Public License (LGPL) Version 2.1 that
5  * accompanies this distribution (lgpl-v21.txt).  The LGPL is also
6  * available at http://www.gnu.org/licenses/lgpl.html.  If the version
7  * of the LGPL at http://www.gnu.org is different to the version of
8  * the LGPL accompanying this distribution and there is any conflict
9  * between the two license versions, the terms of the LGPL accompanying
10  * this distribution shall govern.
11  *
12  * Contributors:
13  *     Red Hat - initial API and implementation
14  *******************************************************************************/
15 package org.eclipse.swt.tests.gtk.snippets;
16 
17 import org.eclipse.swt.SWT;
18 import org.eclipse.swt.layout.GridData;
19 import org.eclipse.swt.layout.GridLayout;
20 import org.eclipse.swt.widgets.Combo;
21 import org.eclipse.swt.widgets.Display;
22 import org.eclipse.swt.widgets.Label;
23 import org.eclipse.swt.widgets.Shell;
24 
25 /*
26  * Title: Bug 500703 - [GTK3.20+] Combo with SWT.READ_ONLY is garbled upon re-size
27  * How to run: launch snippet, select long box, start to shrink window
28  * Bug description: Text is drawn over itself numerous times, causing garbled text
29  * Expected results: Text should shrink and not be drawn over other widgets
30  * GTK Version(s): 3.20+
31  */
32 public class Bug500703_ComboGarbledResize {
33 
main(String[] args)34 	public static void main(String[] args) {
35 		Display display = new Display();
36 		Shell shell = new Shell(display);
37 		shell.setLayout(new GridLayout(2, false));
38 
39 		Label label = new Label(shell, SWT.NONE);
40 		label.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false,false, 1, 1));
41 		label.setText("Testing Label");
42 
43 		Combo text = new Combo(shell, SWT.READ_ONLY);
44 		text.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));
45 		text.add("This is a very long long long long long box");
46 		text.add("short");
47 
48 		// Uncomment to test different selections
49 //		text.select(0);
50 //		text.select(1);
51 
52 		shell.pack();
53 		// Uncomment for setBounds testing
54 //		shell.setSize(400, 200);
55 		shell.open();
56 		while (!shell.isDisposed()) {
57 			if (!display.readAndDispatch())
58 				display.sleep();
59 		}
60 		display.dispose();
61 	}
62 }