/*
 * Jalview - A Sequence Alignment Editor and Viewer (Version 2.6)
 * Copyright (C) 2010 J Procter, AM Waterhouse, G Barton, M Clamp, S Searle
 * 
 * This file is part of Jalview.
 * 
 * Jalview 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 3 of the License, or (at your option) any later version.
 * 
 * Jalview 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 Jalview.  If not, see <http://www.gnu.org/licenses/>.
 */
package jalview.gui;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

/**
 * DOCUMENT ME!
 * 
 * @author $author$
 * @version $Revision$
 */
public class SplashScreen extends JPanel implements Runnable
{
  boolean visible = true;

  JInternalFrame iframe;

  Image image;

  int fontSize = 11;

  int yoffset = 30;

  /**
   * Creates a new SplashScreen object.
   */
  public SplashScreen()
  {
    Thread t = new Thread(this);
    t.start();
  }

  /**
   * ping the jalview version page then create and display the jalview
   * splashscreen window.
   */
  void initSplashScreenWindow()
  {
    addMouseListener(new MouseAdapter()
    {
      public void mousePressed(MouseEvent evt)
      {
        try
        {
          visible = false;
          closeSplash();
        } catch (Exception ex)
        {
        }
      }
    });

    try
    {
      java.net.URL url = getClass().getResource("/images/logo.gif");

      if (url != null)
      {
        image = java.awt.Toolkit.getDefaultToolkit().createImage(url);

        MediaTracker mt = new MediaTracker(this);
        mt.addImage(image, 0);
        mt.waitForID(0);
        Desktop.instance.setIconImage(image);
      }
    } catch (Exception ex)
    {
    }

    iframe = new JInternalFrame();
    iframe.setFrameIcon(null);
    iframe.setClosable(false);
    iframe.setContentPane(this);
    iframe.setLayer(JLayeredPane.PALETTE_LAYER);

    Desktop.desktop.add(iframe);

    iframe.setVisible(true);
    iframe.setBounds((int) ((Desktop.instance.getWidth() - 750) / 2),
            (int) ((Desktop.instance.getHeight() - 160) / 2), 750, 190);
  }

  /**
   * Create splash screen, display it and clear it off again.
   */
  public void run()
  {
    initSplashScreenWindow();
    long startTime = System.currentTimeMillis() / 1000;

    while (visible)
    {
      try
      {
        Thread.sleep(1000);
      } catch (Exception ex)
      {
      }

      if (((System.currentTimeMillis() / 1000) - startTime) > 5)
      {
        visible = false;
      }
      else
        repaint();
    }

    closeSplash();
  }

  /**
   * DOCUMENT ME!
   */
  public void closeSplash()
  {
    try
    {

      iframe.setClosed(true);
    } catch (Exception ex)
    {
    }
  }

  /**
   * DOCUMENT ME!
   * 
   * @param g
   *          DOCUMENT ME!
   */
  public void paintComponent(Graphics g)
  {
    g.setColor(Color.white);
    g.fillRect(0, 0, getWidth(), getHeight());
    g.setColor(Color.black);
    g.setFont(new Font("Verdana", Font.BOLD, fontSize + 6));

    if (image != null)
    {
      g.drawImage(image, 5, yoffset + 12, this);
    }

    int y = yoffset;

    g.drawString("Jalview " + jalview.bin.Cache.getProperty("VERSION"), 50,
            y);

    FontMetrics fm = g.getFontMetrics();
    int vwidth = fm.stringWidth("Jalview "
            + jalview.bin.Cache.getProperty("VERSION"));
    g.setFont(new Font("Verdana", Font.BOLD, fontSize + 2));
    g.drawString(
            "Last updated: "
                    + jalview.bin.Cache.getDefault("BUILD_DATE", "unknown"),
            50 + vwidth + 5, y);
    if (jalview.bin.Cache.getDefault("LATEST_VERSION", "Checking").equals(
            "Checking"))
    {
      // Displayed when code version and jnlp version do not match
      g.drawString("...Checking latest version...", 50, y += fontSize + 10);
      y += 5;
      g.setColor(Color.black);
    }
    else if (!jalview.bin.Cache.getDefault("LATEST_VERSION", "Checking")
            .equals(jalview.bin.Cache.getProperty("VERSION")))
    {
      if (jalview.bin.Cache.getProperty("VERSION").toLowerCase()
              .indexOf("automated build") == -1)
      {
        // Displayed when code version and jnlp version do not match and code
        // version is not a development build
        g.setColor(Color.red);
      }
      g.drawString(
              "!! Jalview version "
                      + jalview.bin.Cache.getDefault("LATEST_VERSION",
                              "..Checking..")
                      + " is available for download from http://www.jalview.org !!",
              50, y += fontSize + 10);
      y += 5;
      g.setColor(Color.black);
    }

    g.setFont(new Font("Verdana", Font.BOLD, fontSize));
    g.drawString(
            "Authors: Jim Procter, Andrew Waterhouse, Michele Clamp, James Cuff, Steve Searle,",
            50, y += fontSize + 4);
    g.drawString("David Martin & Geoff Barton.", 60, y += fontSize + 4);
    g.drawString(
            "Development managed by The Barton Group, University of Dundee.",
            50, y += fontSize + 4);
    g.drawString("If  you use Jalview, please cite: ", 50,
            y += fontSize + 4);
    g.drawString(
            "Waterhouse, A.M., Procter, J.B., Martin, D.M.A, Clamp, M. and Barton, G. J. (2009)",
            50, y += fontSize + 4);
    g.drawString(
            "Jalview Version 2 - a multiple sequence alignment editor and analysis workbench",
            50, y += fontSize + 4);
    g.drawString("Bioinformatics doi: 10.1093/bioinformatics/btp033", 50,
            y += fontSize + 4);
  }
}