import java.awt.AWTEventMulticaster;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class cootimer implements Runnable
{
 Thread worker = null;
 private long time = 0;
 private boolean m_timing = false;
 private long timingInterval = 1000;
 private ActionListener actionListener = null;


 public boolean isRunTimer( )
 {
  return m_timing;
 }

 public void setRunTimer( boolean t )
 {
  m_timing = t;
  if(m_timing)
  {
    if (worker != null)
    {
      worker.stop( );
      worker = null;
    }
    worker = new Thread( this );
    worker.start( );
//System.err.println("In Timer: after start worker=" +worker);
    time = System.currentTimeMillis( );
    time += timingInterval;
  }
  else
  {
    if(worker != null)
    {
      worker.stop( );
      worker = null;
    }
  }
 }

 public long getTimingInterval( )
 {
  return timingInterval;
 }

 public void setTimingInterval( long i )
 {
  if( i >= 100 )
      timingInterval = i;
 }

 public void run( )
 {
  while ( true )
  {
    long currentTime = System.currentTimeMillis( );
//System.err.println("In Timer run: after start currentTime=" + currentTime + "  time=" + time);
    if( currentTime >= time )
    {
     time += timingInterval;
     processActionEvent( new ActionEvent( this, ActionEvent.ACTION_PERFORMED, null ) );
    }
    try
    {
      Thread.sleep( timingInterval/10 );
    }
    catch ( InterruptedException e )
    {
      break;
    }
  }
 }

 public synchronized void addActionListener( ActionListener l )
 {
    actionListener = AWTEventMulticaster.add( actionListener, l );
 }

  public synchronized void removeActionListener( ActionListener l )
  {
    actionListener = AWTEventMulticaster.remove( actionListener, l );
  }

  protected void processActionEvent( ActionEvent e )
  {
    if ( actionListener != null )
      actionListener.actionPerformed( e );
  }
}