import java.awt.*;
import java.awt.event.*;
import java.applet.*;

public class Timer extends Applet
{
	protected Label timeField = new Label("00 : 00 : 00",Label.RIGHT);
	protected WatchThread watch = new WatchThread(timeField);

	public void init()
	{
		setLayout(new GridLayout(2,1));
		
		Panel labelPanel = new Panel();
		labelPanel.setBackground(Color.black);
		labelPanel.add(timeField);
		timeField.setBackground(Color.white);
		add(labelPanel);
		
		Panel buttonPanel = new Panel();
		buttonPanel.setBackground(Color.black);
		Button startWatch = new Button("start timer");
		startWatch.addActionListener(new StartListener());
		buttonPanel.add(startWatch);
		Button pauseWatch = new Button("pause timer");
		pauseWatch.addActionListener(new PauseListener());
		buttonPanel.add(pauseWatch);
		Button clearWatch = new Button("clear timer");
		clearWatch.addActionListener(new ClearListener());
		buttonPanel.add(clearWatch);
		add(buttonPanel);
		watch.start();
		watch.pause();
		
		//setSize(200,150);
		//setVisible(true);
		
	}
	
	public void stop()
	{
		watch.pause();
	}
	
	public void destroy()
	{
		watch.stop();
	}
	
	// class to handle click on startButton
	public class StartListener implements ActionListener{
	
		public void actionPerformed(ActionEvent evt){
			watch.resume();
		}
	}

	// class to handle click on pauseButton
	public class PauseListener implements ActionListener{
	
		public void actionPerformed(ActionEvent evt){
			watch.pause();
		}
	}

	// class to handle click on clearButton
	public class ClearListener implements ActionListener{
	
		public void actionPerformed(ActionEvent evt){
			watch.clear();
		}
	}

}