// PaintApplet.java -- simple paint applet using connection manager
//
//

import java.awt.*;
import java.applet.*;
import java.io.*;
import java.util.Vector;
import java.util.Enumeration;
import java.util.StringTokenizer;

public class PaintApplet extends ConnectionManagerClientApplet {

  MyPaintFrame frame;

  public void init () {
    name = "Paint";
    frame = new MyPaintFrame (this, "Whiteboard");
    super.init ();
    }

  public void close () {
    frame.close ();
    super.close ();
    }


  // override server input handler inherited from Client
  public void notifyInput (String s) {
    StringTokenizer st = new StringTokenizer (s);
    String cmd = st.nextToken();
    if (cmd.equals("erase"))
      frame.erase();
    else if (cmd.equals ("draw"))
      try {
        Vector points = new Vector (100);
        Color c = new Color (Integer.parseInt (st.nextToken()));
        while (st.hasMoreTokens()) {
          int x = Integer.parseInt (st.nextToken());
          int y = Integer.parseInt (st.nextToken());
          points.addElement (new Dimension (x, y));
          }
        frame.draw (c, points);
        }
      catch (Exception e);
    }

  public void sendOutput (String s) {
    super.sendOutput (s);
    }
  }

class MyPaintFrame extends PaintFrame {

  PaintApplet parent;

  MyPaintFrame (PaintApplet p, String title) {
    super (title);
    parent = p;
    }

  public void notifyErase () {
    parent.sendOutput ("erase\n");
    }

  public void notifyDraw (Color c, Vector points) {
    Enumeration e = points.elements();
    String s = "draw " + String.valueOf(c.getRGB());
    while (e.hasMoreElements()) {
      Dimension d = (Dimension)e.nextElement();
      s = s + " " + String.valueOf(d.width) + " " + String.valueOf(d.height);
      }
    parent.sendOutput (s + "\n");
    }

  public void notifyClose () {
    parent.close ();
    }
  }