package awb;
import java.awt.*;

public class Timer extends Canvas implements Runnable
{
    private int myHours = 0;
    private int myMinutes = 0;
    private int mySeconds = 0;
    private int myTenths = 0;
    private long myTicks = 0;
    private boolean myTimerOn;
    private final static Font FONT = new Font("Helvetica",Font.PLAIN,10);
    private Thread mySelf;

    public Timer()
    {
	setBackground(Color.black);
	myTimerOn = false;
    }

    public Dimension preferredSize()
    {
	return new Dimension(50,15);
    }

    public Dimension minimumSize()
    {
	return new Dimension(50,15);
    }

    public void startTimer()
    {
	myTimerOn = true;
	mySelf = new Thread(this);
	mySelf.start();
    }

    public void stopTimer()
    {
	myTimerOn = false;
    }

    public void reset()
    {
	stopTimer();
	myHours = 0;
	myMinutes = 0;
	mySeconds = 0;
	myTenths = 0;
	myTicks = 0;
	repaint();
    }

    public String getElapsedTime()
    {
	return toString();
    }

    public int getElapsedTicks()
    {
	return (int)myTicks;
    }

    public static String changeTicksToString(int ticks)
    {
	int t = ticks % 10;
	ticks /= 10;
	int s = ticks % 60;
	ticks /= 60;
	int m = ticks % 60;
	ticks /= 60;
	return makeString(ticks,m,s,t);
    }

    public void run()
    {
	while (myTimerOn)
	{
	    incrementClock();
	    repaint();
	    try
	    {
		Thread.sleep(90);
	    }
	    catch (InterruptedException ex) { }
	}
	mySelf = null;
    }

    public void paint(Graphics g)
    {
	g.setFont(FONT);
	g.setColor(Color.white);
	g.drawString(toString(),5,13);
    }

    public String toString()
    {
	return makeString(myHours,myMinutes,mySeconds,myTenths);
    }

    public static String makeString(int h, int m, int s, int t)
    {
	String time = h + ":";
	if (m < 10) time = time + "0" + m + ":";
	else time = time + m + ":";
	if (s < 10) time = time + "0" + s + ":";
	else time = time + s + ":";
	time += t;
	return time;
    }

    public long getTicks()
    {
	return myTicks;
    }

    private void incrementClock()
    {
	myTicks++;

	myTenths++;
	if (myTenths > 9)
	{
	    myTenths = 0;
	    mySeconds++;
	    if (mySeconds > 59)
	    {
		mySeconds = 0;
		myMinutes++;
		if (myMinutes > 59)
		{
		    myMinutes = 0;
		    myHours++;
		}
	    }
	}
    }
}