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/*******************************************************************************
* Copyright (c) 2000, 2005 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;
/*
* Make a toggle button have radio behavior
*
* For a list of all SWT example snippets see
* http://www.eclipse.org/swt/snippets/
*/
import org.eclipse.swt.*;
import org.eclipse.swt.widgets.*;
import org.eclipse.swt.layout.*;
public class Snippet169 {
public static void main (String [] args) {
Display display = new Display ();
final Shell shell = new Shell (display);
shell.setLayout (new FillLayout ());
Listener listener = new Listener () {
public void handleEvent (Event e) {
Control [] children = shell.getChildren ();
for (int i=0; i<children.length; i++) {
Control child = children [i];
if (e.widget != child && child instanceof Button && (child.getStyle () & SWT.TOGGLE) != 0) {
((Button) child).setSelection (false);
}
}
((Button) e.widget).setSelection (true);
}
};
for (int i=0; i<20; i++) {
Button button = new Button (shell, SWT.TOGGLE);
button.setText ("B" + i);
button.addListener (SWT.Selection, listener);
if (i == 0) button.setSelection (true);
}
shell.pack ();
shell.open ();
while (!shell.isDisposed ()) {
if (!display.readAndDispatch ()) display.sleep ();
}
display.dispose ();
}
}
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