/**
* ScrollTextApplet.java - Scrolling text applet 
*
* @author	Philip Meese
* @version	1.0, 3/16/96 Java Tutor, Second and Third Column
*/
import java.awt.*;
import java.applet.Applet;

import ScrollText;

public class ScrollTextApplet extends Applet{
	ScrollText	_scrollText;
	String		_message;
	int		_speed;
	int 		_width, _height;
	boolean		_started=false;
	
	public void init(){
		processParms();

		// set up a panel and put a scrolltext object in it	
		_scrollText=new ScrollText(_message, _width, _height);
		_scrollText.speed(_speed);

		setLayout(new BorderLayout());
		add("Center", _scrollText);
	}
	public void processParms(){
		String 	speedParm;

		_width=Integer.parseInt(getParameter("width"));
		_height=Integer.parseInt(getParameter("height"));

		speedParm=getParameter("speed");
		if(speedParm == null)
			_speed=50;
		else
			_speed=Integer.parseInt(speedParm);

		_message=getParameter("message");
		if(_message == null)
			_message=new String("The Java Tutor Message Board");

	}
	public void start(){
		if(!_started)
			_scrollText.start();
		else
			_scrollText.resume();

		_started=true;
	}

	public void stop(){	_scrollText.suspend();	}

	public void destroy(){	_scrollText.suspend();	}
	
} // end class ScrollTextApplet