import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class SelectionDialog extends JDialog
{
	private JPanel panel;
	private ButtonGroup group;

	public SelectionDialog(JFrame parent, String title, String msg)
	{
		super(parent, title, true);

		addWindowListener(new WindowAdapter() {
			public void windowClosing(WindowEvent e) {
				setVisible(false);
			}
		});

		panel = new JPanel()
		{
			public Insets getInsets() {
				return new Insets(10, 10, 10, 10);
			}
		};
		panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));

		JLabel label = new JLabel(msg);
//		label.setAlignmentX(CENTER_ALIGNMENT);
		panel.add(label);

		getContentPane().add(panel, BorderLayout.CENTER);

		group = new ButtonGroup();

		JPanel bPanel = new JPanel()
		{
			public Insets getInsets() {
				return new Insets(10, 10, 10, 10);
			}
		};
		bPanel.setLayout(new FlowLayout());

		JButton button = new JButton("OK");
		button.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				setVisible(false);
			}
		});
		bPanel.add(button);
		getContentPane().add(bPanel, BorderLayout.SOUTH);

		pack();
	}

	void addItem(String text)
	{
		JRadioButton rb = new JRadioButton(text);
		panel.add(rb);
		group.add(rb);
//		if (!group.isSelected())
			rb.setSelected(true);
		pack();
	}

	public void pack()
	{
		super.pack();

		// center dialog in parent
		Rectangle r = getParent().getBounds(), r1 = getBounds();
		setLocation(r.x + (r.width - r1.width) / 2,
			r.y + (r.height - r1.height) / 2);
	}

/*	public boolean wasClosed()
	{
		return buttonPressed;
	}
*/
}