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    /* InputStreamProgressDialog.java
     *
     * created: Thu Aug  8 2002
     *
     * This file is part of Artemis
     *
     * Copyright (C) 2001  Genome Research Limited
     *
     * 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.
     *
     * $Header: //tmp/pathsoft/artemis/uk/ac/sanger/artemis/components/InputStreamProgressDialog.java,v 1.1 2004-06-09 09:46:58 tjc Exp $
     */
    
    package uk.ac.sanger.artemis.components;
    
    import java.awt.*;
    import java.awt.event.*;
    
    import uk.ac.sanger.artemis.util.InputStreamProgressListener;
    import uk.ac.sanger.artemis.util.InputStreamProgressEvent;
    
    import javax.swing.*;
    
    /**
     *  A JDialog the show the byte count of an InputStream (via
     *  InputStreamProgressEvent objects)
     *
     *  @author Kim Rutherford <kmr@sanger.ac.uk>
     *  @version $Id: InputStreamProgressDialog.java,v 1.1 2004-06-09 09:46:58 tjc Exp $
     **/
    
    public class InputStreamProgressDialog extends JDialog {
      /**
       *  Create a blocking InputStreamProgressDialog JFrame.
       *  @param parent The parent window.
       *  @param message The message to display in the JDialog and to use as the
       *    frame title.
       **/
      public InputStreamProgressDialog (final JFrame parent,
                                        final String message) {
        this (parent, message, message, true);
      }
    
      /**
       *  Create a new InputStreamProgressDialog JFrame.
       *  @param parent The parent window.
       *  @param title The title of the new JDialog.
       *  @param message The message to display in the JDialog.
       *  @param modal If true, dialog blocks input to the parent window when
       *    shown.
       **/
      public InputStreamProgressDialog (final JFrame parent_frame,
                                        final String title,
                                        final String message,
                                        final boolean modal) {
        super (parent_frame, title, modal);
        getContentPane ().add (new JLabel (message), "North");
    
        final JLabel bytes_label = new JLabel ("                               ");
        getContentPane ().add (bytes_label, "Center");
    
        final JPanel panel = new JPanel ();
    
        panel.add (ok_button);
        ok_button.addActionListener (new ActionListener () {
          public void actionPerformed (ActionEvent e) {
            InputStreamProgressDialog.this.dispose ();
          }
        });
    
        addWindowListener (new WindowAdapter () {
          public void windowClosing (WindowEvent event) {
            InputStreamProgressDialog.this.dispose ();
          }
        });
    
        stream_progress_listener = new InputStreamProgressListener () {
          public void progressMade (final InputStreamProgressEvent event) {
    
            final int char_count = event.getCharCount ();
            if (char_count == -1) {
              bytes_label.setText ("");
            } else {
              setVisible (true);
              bytes_label.setText ("Characters read so far: " + char_count);
            }
          }
        };
    
        getContentPane ().add (panel, "South");
        pack ();
    
        final Dimension screen = Toolkit.getDefaultToolkit().getScreenSize();
        setLocation (new Point ((screen.width - getSize ().width) / 2,
                                (screen.height - getSize ().height) / 2));
    
        setVisible (false);
      }
    
      /**
       *  Return an InputStreamProgressListener to pass to FileProgressDocument.
       **/
      public InputStreamProgressListener getInputStreamProgressListener () {
        return stream_progress_listener;
      }
    
      /**
       *  An InputStreamProgressListener used to update the label with the
       *  current number of chars read.
       **/
      private InputStreamProgressListener stream_progress_listener = null;
    
      final private JButton ok_button = new JButton ("OK");
    }