Make a toggle button have radio behavior
/*
* Make a toggle button have radio behavior
*
* For a list of all SWT example snippets see
* http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets
*/
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
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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