// ---------------------------------------
// Restricted Focus Viewer (RFV) Program
// Version 2.1
// Language: Java 2
// November, 2000
// Copyright (C) 2000  Anthony R. Jansen 
// ---------------------------------------

// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

// ---------------------------------------
// Replayer_Thread.java
//
// Thread that checks the timer to 
// determine when the next data point
// update is needed on the replayer.
// ---------------------------------------

import java.awt.*;

public class Replayer_Thread extends Thread {

	// Need Replayer so that stimulus can be updated
	// ---------------------------------------------
	private Replayer	replayer;
	private	boolean		valid;

	// Constructor which accepts Replayer as argument
	// ----------------------------------------------
	public Replayer_Thread(Replayer rep)
	{
		replayer = rep;
		valid = true;
	}

	// Interrupt if no longer needed
	// -----------------------------
	public void interrupt()
	{
		valid = false;
	}

	// Thread to check the timer for the next data update
	// --------------------------------------------------
	public void run()
	{
		long	elapsed_time;
		long	current_time;
		int	dp;

		dp = replayer.getCurrentDataPoint();

		// Continue while there are more data points to process
		// ----------------------------------------------------
		while(valid && dp < replayer.getNumDataPoints()) {

			// Check timer
			// -----------
			elapsed_time = replayer.getElapsedReplayTime();

			// Adjust current time based on speed factor
			// -----------------------------------------
			current_time = replayer.getCurrentDataPointTime();
			if (replayer.getSpeedFactor() == Replayer.QUARTER_SPEED)
				current_time = current_time * 4;
			else if (replayer.getSpeedFactor() == Replayer.HALF_SPEED)
				current_time = current_time * 2;
			else if (replayer.getSpeedFactor() == Replayer.DOUBLE_SPEED)
				current_time = current_time / 2;
			else if (replayer.getSpeedFactor() == Replayer.QUADRUPLE_SPEED)
				current_time = current_time / 4;

			if (elapsed_time >= current_time) {
				replayer.updateReplayerBaseImage();
				replayer.incrementCurrentDataPoint();
				dp = replayer.getCurrentDataPoint();
			}
		}

		// Report when finished
		// --------------------
		replayer.endReplay();
	}

}