import java.awt.event.*;
import javax.swing.*;
import edu.umd.cs.jazz.*;
import edu.umd.cs.jazz.util.*;
import edu.umd.cs.jazz.component.*;

public class HappyLine extends JFrame {

  public HappyLine() {
			// Support exiting application
	    addWindowListener(new WindowAdapter() {
	        public void windowClosing(WindowEvent e) {
              System.exit(0);
          }
	    });

      // Set up basic frame
    	setBounds(100, 100, 400, 400);
    	setVisible(true);
    	ZCanvas canvas = new ZCanvas();
    	getContentPane().add(canvas);
    	validate();

      // Add some sample line
      ZPolyline line = new ZPolyline(10, 10, 50, 50);
    	ZVisualLeaf leaf = new ZVisualLeaf(line);
      canvas.getLayer().addChild(leaf);
    }

    public static void main(String args[]) {
        HappyLine app = new HappyLine();
    }
}