// ---------------------------------------
// 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.

// ---------------------------------------
// RFV_Output_File.java
//
// This file outputs the user's responses
// and the mouse movements over blocks
// that contain stimuli.
// ---------------------------------------

import	java.io.*;
import	java.text.*;
import	java.util.*;

public class RFV_Output_File {

	// Variable to handle file writing
	// -------------------------------
	private	PrintWriter	output;

	// Constant file prefix
	// --------------------
	private static final String     FILE_SUFFIX = ".rfvd";
	private static final String     OUTPUT_TITLE = "RFV Version 2.1 Output Data File";

	// Constructor which opens a new file (if possible)
	// and writes header information
	// ------------------------------------------------
	public RFV_Output_File(String subject_id, String input_filename)
	{
		String	filename;

		// Open new file
		// -------------
		try {
			filename = subject_id + FILE_SUFFIX;
			FileOutputStream out_stream = new FileOutputStream(filename);
			output = new PrintWriter(out_stream);
		}
		catch(IOException e) {
			RFV_Error.die(68, "" + subject_id + FILE_SUFFIX);
		}

		// Get the date
		// ------------
		DateFormat df = DateFormat.getDateInstance(DateFormat.MEDIUM);

		// Print file header information
		// -----------------------------
		output.println(OUTPUT_TITLE);
		output.println("Subject:          " + subject_id);
		output.println("Input Filename:   " + input_filename);
		output.println("Date:             " + df.format(new Date()));
		output.flush();
	}
	
	// Writes a line to the output
	// ---------------------------
	public void writeLine(String line)
	{
		output.println(line);
		output.flush();
	}

	// Writes an empty line to the output
	// ----------------------------------
	public void emptyLine()
	{
		output.println("");
		output.flush();
	}

	// Method to update the latest mouse position
	// ------------------------------------------
	public void writeMousePosition(int stimulus, long time, int x, int y, 
		boolean motion_blur)
	{
		String  line;

		// Record the details in columns
		// -----------------------------
		line = "      " + stimulus;
		while (line.length() < 12)
			line = line + " ";
		line = line + time;
		while (line.length() < 24)
			line = line + " ";
		line = line + x;
		while (line.length() < 30)
			line = line + " ";
		line = line + y;
		while (line.length() < 36)
			line = line + " ";
		if (stimulus > 0) {
			if (motion_blur)
				line = line + "B";
			else
				line = line + "F";
		}

		// Output the line
		// ---------------
		output.println(line);
		output.flush();
	}

	// Writes out stimulus details
	// ---------------------------
	public void writeStimulus(int num, int xc, int yc)
	{
		output.println("      Stimulus " + num + ": Top left corner at <" + 
			xc + ", " + yc + ">");
		output.flush();
	}

	// Writes out the response details
	// -------------------------------
	public void writeResponse(String response, long time)
	{
		output.println("      Response:   " + response);
		output.println("      Time (ms):  " + time);
		output.flush();
	}

	// Close the file before class is destroyed
	// ----------------------------------------
	public void finalize()
	{
		if (output != null)
			output.close();
	}

}