//********************************************************************
// marquee.java
//********************************************************************

import java.applet.*;
import java.awt.Graphics;
import java.awt.Font;

//********************************************************************

public class marquee extends Applet implements Runnable
  {
    int x = 0;
    int y = 0;

    int width = 0;

    Thread my_thread = null;

    String message = "Hello, Java!";
    String font_to_use = "TimesRoman";
    int point_size = 10;

    //----------------------------------------------------------------

    public void init()
      {
        get_defaults();

        String parameter;

        parameter = getParameter("MESSAGE");
        if (parameter != null)
          message = parameter;

        parameter = getParameter("FONT");
        if (parameter != null)
          font_to_use = parameter;

        parameter = getParameter("POINT_SIZE");
        if (parameter != null)
          point_size = Integer.parseInt(parameter);
      }

    //----------------------------------------------------------------

    public void start()
      {
        my_thread = new Thread(this);
        my_thread.start();
      }

    //----------------------------------------------------------------

    void get_defaults()
      {
        y = size().height / 2;
        width = size().width;
        if (x > width)
          x = width;
      }

    //----------------------------------------------------------------

    public void run()
      {
        while (true)
          {
            repaint();
            x -= 10;
            if (x < 0)
              x = width;

            try
              {
                Thread.sleep(100);
              }
            catch (InterruptedException e)
              {
              }
          }
      }

    //----------------------------------------------------------------

    public void paint(Graphics g)
      {
        get_defaults();
        Font font = new Font(font_to_use, Font.PLAIN, point_size);
        g.setFont(font);
        g.drawString(message, x, y);
      }
  }