/**
This is a  metronome !
* If you can find a better sound please, send it to me !
@author : Serge Derhy    address :   sderhy@imaginet.fr
@version:1.0     09/28/96
*	
*/


// 		Methodes de la classe metron 1
//	public void init()
//	public void paint( Graphics g ) {
//	public void update(Graphics g) {
//	private void drawMetro( Graphics gr, boolean right)

import java.awt.*;
import java.applet.Applet;

public class Metronome extends metron1 implements Runnable
{

	Thread	runner;
	int TickTime=400;
	
/***************************< démarrage du Thread  >******************/
	public void start()
	{	if (runner == null)
		{	runner = new Thread( this); // creation du Thread
			runner.start() ;			// Démarrage du Thread
		}
	}
/***************************< arrêt du Thread  >**********************/	
		public void stop()
	{		if(runner != null)
		{	runner.stop();
			runner = null;
		}
	}
/***************************< Corps du Thread  >************/		


	public void run ()
	{		
		while(true)
		{ 
		PlayMetro(TickTime);

		}
	}
	
	public boolean action(Event evt, Object arg)
		{	
			
			if (evt.target instanceof TextField)
				{
					String s = TF1.getText();
					try {var1 = Integer.parseInt(s);}catch(NumberFormatException e) { }
// tester les ecarts trops importants :
					if (var1 > 300)  var1 = 300;
					if (var1 < 40) var1  = 40;
					TickTime = 60*1000/var1;	//  60sec *1000 ms divisées par le tempo
				}

			if ( evt.target instanceof Button )
		 	{
							if(runner != null)
								{	runner.stop();
									runner = null;
								}
						
							else if (runner == null)
								{	runner = new Thread( this); // creation du Thread
									runner.start() ;			// Démarrage du Thread
								}
										
					
			}	
			return true;
		}// END OF ACTION


// PlayMetro*****************< méthode gérée par le Thread********/	
public void PlayMetro( int TickTime)
		{
	 
			// right side
			repaint();
			if (ClickSound != null) ClickSound.play();

			try{Thread.sleep(TickTime);} catch(InterruptedException e){}// pause
			 Right = false ;
			// Left side
			repaint();
			if (ClickSound != null) ClickSound.play();
			try{Thread.sleep(TickTime);} catch(InterruptedException e){}// pau	
			Right = true ;		
		
		}
} // End of Metronome.class