package com.jbf.java.util;
/**
 * @(#)Chronometre.java
 *
 *
 * @author Jean-Baptiste Fromenteau
 * @version 1.0.0 2008/4/16
 */

import com.jbf.java.util.TimeListener;
import com.jbf.java.util.TimeEvent;


/**
 *That class is a chronometre (hours, minutes, seconds).
 *
 **/

public class Chronometre {
	
	
	/**
	 *The thread we are using to count the elapsed time.
	 *
	 **/
	protected Thread chronometre;
	
	/**
	 *The hours of the chronometre.
	 *
	 **/
	protected int hours = 0;
	
	/**
	 *The minutes of the chronometre.
	 *
	 **/
	protected int minutes = 0;
	
	/**
	 *The seconds of the chronometre.
	 *
	 **/
	protected int seconds = 0;
	
	
	/**
	 *To know which events are happening. 
	 *
	 **/
	protected TimeListener timeListener = null;
	
	
	
	
	/**
	 *To create a new <code>Chronometre</code> with a given start time.
	 *
	 *@param int h The number of hours.
	 *@param int m The number of minutes (that value must be between 0 and 59).
	 *@param int s The number of seconds (that value must be between 0 and 59).
	 *
	 **/
	public Chronometre (int h, int m, int s) {
		
		setTime(h, m, s);
		
		init();
		
	}
	
	/**
	 *To create a new <code>Chronometre</code>.
	 *
	 **/
	public Chronometre () {
		
		init();
		
	}
	
	
	
	
	/**
	 *To initialize the chronometre.
	 *
	 **/
	private void init () {
		
		chronometre = new Thread () {
			
			public void run () {
				
				while (true) {
					
					seconds ++;
					
					if (seconds == 59) {
						
						minutes ++;
						
						seconds = 0;
						
						if (minutes == 59) {
							
							hours ++;
							
							minutes = 0;
							seconds = 0;
							
							timeListener.hoursChanged(new TimeEvent(this));
							
						}
						
						timeListener.minutesChanged(new TimeEvent(this));
						
					}
					
					timeListener.secondsChanged(new TimeEvent(this));
					timeListener.timeChanged(new TimeEvent(this));
					
					try {
						sleep(1000);
					}catch (InterruptedException ie) {}
					
				}
				
			}
			
		};
		
	}
	
	
	/**
	 *To add a <code>TimeListener</code> to that <code>Chronometre</code>.
	 *
	 *@param TimeListener tl The listener to add.
	 *
	 **/
	public void addTimeListener (TimeListener tl) {
		
		this.timeListener = tl;
		
	}
	
	
	
	/**
	 *To run the chronometre.
	 *
	 **/
	public void start () {
		
		chronometre.start();
		
		timeListener.timeStarted(new TimeEvent(this));
		
	}
	
	/**
	 *To stop (definitively) the chronometre.
	 *
	 **/
	public void stop () {
		
		chronometre.stop();
		
		timeListener.timeStoped(new TimeEvent(this));
		
	}
	
	
	/**
	 *To stop (temporaly) the chronometre.
	 *
	 **/
	public void suspend () {
		
		chronometre.suspend();
		
		timeListener.timeSuspended(new TimeEvent(this));
		
	}
	
	/**
	 *To run again the chronometre (with previous value).
	 *
	 **/
	public void resume () {
		
		chronometre.resume();
		
		timeListener.timeResumed(new TimeEvent(this));
		
	}
	
	
	/**
	 *To reset the chronometre.
	 *
	 **/
	public void reset () {
		
		hours = 0;
		minutes = 0;
		seconds = -1;
		
		timeListener.timeReseted(new TimeEvent(this));
		
	}
	
	
	
	/**
	 *To set the current time.
	 *
	 *@param int h The number of hours.
	 *@param int m The number of minutes (that value must be between 0 and 59).
	 *@param int s The number of seconds (that value must be between 0 and 59).
	 *
	 **/
	public void setTime (int h, int m, int s) {
		
		this.hours = h;
		this.minutes = m;
		this.seconds = s;
		
	}
	
	/**
	 *To get the current time.
	 *
	 *@return String The current time (hours minutes seconds).
	 *
	 **/
	public String getTime () {
		
		return (hours + ":" + minutes + ":" + seconds);
		
	}
	
	
	/**
	 *To set the number of hours.
	 *
	 *@param int h The number of hours to set.
	 *
	 **/
	public void setHours (int h) {
		
		this.hours = h;
		
	}
	
	/**
	 *To get the current number of hours.
	 *
	 *@return int The number of hours.
	 *
	 **/
	public int getHours () {
		
		return this.hours;
		
	}
	
	
	/**
	 *To set the number of minutes.
	 *
	 *@param int m The number of minutes to set (between 0 and 59).
	 *
	 **/
	public void setMinutes (int m) {
		
		this.minutes = m;
		
	}
	
	/**
	 *To get the current number of minutes.
	 *
	 *@return int The number of minutes.
	 *
	 **/
	public int getMinutes () {
		
		return this.minutes;
		
	}
	
	
	/**
	 *To set the number of seconds.
	 *
	 *@param int s The number of seconds to set (between 0 and 59).
	 *
	 **/
	public void setSeconds (int s) {
		
		this.seconds = s;
		
	}
	
	/**
	 *To get the current number of seconds.
	 *
	 *@return int The number of seconds.
	 *
	 **/
	public int getSeconds () {
		
		return this.seconds;
		
	}
	
}