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

public class ShakeyMessage extends JComponent 
    implements Runnable, ActionListener {
  
    private Message message;
    private boolean stopped;
    private JButton button;

    public ShakeyMessage(String text) {
	message = new Message(text, 100, 200);
	setBackground(Color.BLACK);
	setFont(new Font("Serif", Font.BOLD, 36));
	setLayout(new FlowLayout());
	button = new JButton("Stop");
	button.setFont(new Font("Serif", Font.BOLD, 24));
	button.setBackground(Color.WHITE);
	button.setForeground(Color.RED);
	add(button);
	new Thread(this).start();
    }

    public void run() {
	try {
	    while (!stopped) {
		message.move();
		Thread.sleep(100);
		repaint();
	    }
	}
	catch (InterruptedException e) {}
    }

    public void actionPerformed(ActionEvent e) {

    }
  
    public Dimension getPreferredSize() {
	return new Dimension(500, 300);
    }
 
    public void paintComponent(Graphics g) {
	super.paintComponent(g);
	g.setColor(getBackground());
	Dimension size = getSize();
	g.fillRect(0, 0, size.width, size.height);
	message.draw(g);
    }
  
    public static void main(String[] argv) {
	String frameTitle = "Shakey Message";
	JFrame fr = new JFrame(frameTitle);
	JComponent comp = new ShakeyMessage("Happy Halloween!");
	Dimension size = comp.getPreferredSize();
	fr.setSize(size);
	fr.getContentPane().add(comp);
	fr.setVisible(true);
    }
  
}