// ---------------------------------------
// 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_Status_Image.java
//
// This class stores and draws the status 
// image that indicates the status of the 
// Replayer.
// ---------------------------------------

import java.awt.*;
import java.awt.image.*;

public class Replayer_Status_Image implements ImageObserver {

	// Variables
	// ---------
	private int             status_x_pos;
	private int             status_y_pos;
	private Image           status_image;
	private boolean         visible;

	// Constants
	// ---------
	public static final int        STATUS_WIDTH = 95;
	public static final int        STATUS_HEIGHT = 30;

	// Constructor
	// -----------
	public Replayer_Status_Image(Image image, RFV_Defaults defaults)
	{
		visible = true;
		status_image = image;
		status_x_pos = defaults.getFrameSize().width - STATUS_WIDTH;
		status_y_pos = defaults.getFrameSize().height - STATUS_HEIGHT;
		update(false, false, Replayer.NORMAL_SPEED);
	}

	// Updates the status image
	// ------------------------
	public void update(boolean running, boolean paused, int speed_factor)
	{
		Graphics g = status_image.getGraphics();
		g.setColor(Color.black);
		g.fillRect(0, 0, STATUS_WIDTH, STATUS_HEIGHT);
		g.setColor(new Color(0, 255, 0));

		// Update play symbols
		// -------------------
		if (running && !paused) {
			int     x_array[] = {17, 17, 28};
			int     y_array[] = {10, 20, 15};
			g.fillPolygon(x_array, y_array, 3);
		}
		else if (running && paused) {
			g.fillRect(17, 10, 4, 10);
			g.fillRect(23, 10, 4, 10);
		}
		else {
			g.fillRect(17, 10, 10, 10);
		}

		// Update speed meter
		// ------------------
		g.drawLine(40, 19, 80, 19);
		for (int i = 1; i <= 5; i++)
			g.drawLine(30 + (i*10), 19, 30 + (i*10), 16);
		g.setColor(Color.red);
		g.fillOval(27 + (speed_factor*10), 9, 6, 6);
	}

	// Toggles whether visible or not
	// ------------------------------
	public void toggleVisible()
	{
		if (visible)
			visible = false;
		else
			visible = true;
	}

	// Draws the status image at the specified offset
	// ----------------------------------------------
	public void draw(Graphics g)
	{
		if (visible)
			g.drawImage(status_image, status_x_pos, status_y_pos, this);
	}

	// Required for the ImageObserver interface
	// ----------------------------------------
	public boolean imageUpdate(Image img, int flags, int xc, int yc, int w, int h)
	{
		return true;
	}

	}