SWT Draw2D Example

[Java Tip]

import org.eclipse.draw2d.ButtonGroup;
import org.eclipse.draw2d.ButtonModel;
import org.eclipse.draw2d.ChangeEvent;
import org.eclipse.draw2d.ChangeListener;
import org.eclipse.draw2d.CheckBox;
import org.eclipse.draw2d.Clickable;
import org.eclipse.draw2d.Figure;
import org.eclipse.draw2d.Label;
import org.eclipse.draw2d.LightweightSystem;
import org.eclipse.draw2d.ToggleModel;
import org.eclipse.draw2d.XYLayout;
import org.eclipse.draw2d.geometry.Rectangle;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

public class Draw2D_Example {
  public static void main(String args[]) {
    final Label label = new Label("Press a button!");
    Shell shell = new Shell();

    LightweightSystem lws = new LightweightSystem(shell);
    Figure parent = new Figure();
    parent.setLayoutManager(new XYLayout());
    lws.setContents(parent);

    Clickable above = new CheckBox("I'm above!");
    parent.add(above, new Rectangle(10, 10, 80, 20));
    ButtonModel aModel = new ToggleModel();
    aModel.addChangeListener(new ChangeListener() {
      public void handleStateChanged(ChangeEvent e) {
        label.setText("Above");
      }
    });
    above.setModel(aModel);

    Clickable below = new CheckBox("I'm below!");
    parent.add(below, new Rectangle(10, 40, 80, 20));
    ButtonModel bModel = new ToggleModel();
    bModel.addChangeListener(new ChangeListener() {
      public void handleStateChanged(ChangeEvent e) {
        label.setText("Below");
      }
    });
    below.setModel(bModel);

    ButtonGroup bGroup = new ButtonGroup();
    bGroup.add(aModel);
    bGroup.add(bModel);
    bGroup.setDefault(bModel);

    parent.add(label, new Rectangle(10, 70, 80, 20));
    shell.setSize(130, 120);
    shell.open();
    shell.setText("Example");
    Display display = Display.getDefault();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch())
        display.sleep();
    }
  }
}