/*
 * Jalview - A Sequence Alignment Editor and Viewer
 * Copyright (C) 2005 AM Waterhouse, J Procter, G Barton, M Clamp, S Searle
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 */
package jalview.gui;

import jalview.datamodel.*;

import jalview.io.*;

import jalview.jbgui.*;

import java.awt.*;
import java.awt.datatransfer.*;
import java.awt.event.*;

import javax.swing.*;


/**
 * DOCUMENT ME!
 *
 * @author $author$
 * @version $Revision$
 */
public class CutAndPasteTransfer extends GCutAndPasteTransfer
{

  AlignViewport viewport;

  public CutAndPasteTransfer()
  {
    SwingUtilities.invokeLater(new Runnable()
    {
      public void run()
      {
        textarea.requestFocus();
      }
    });

  }

    /**
     * DOCUMENT ME!
     */
    public void setForInput(AlignViewport viewport)
    {
      this.viewport = viewport;
      getContentPane().add(inputButtonPanel, java.awt.BorderLayout.SOUTH);
    }

    /**
     * DOCUMENT ME!
     *
     * @return DOCUMENT ME!
     */
    public String getText()
    {
        return textarea.getText();
    }

    /**
     * DOCUMENT ME!
     *
     * @param text DOCUMENT ME!
     */
    public void setText(String text)
    {
        textarea.setText(text);
    }

    public void appendText(String text)
    {
      textarea.append(text);
    }

    /**
     * DOCUMENT ME!
     *
     * @param e DOCUMENT ME!
     */
    public void copyItem_actionPerformed(ActionEvent e)
    {
        textarea.getSelectedText();
        Clipboard c = Toolkit.getDefaultToolkit().getSystemClipboard();
        c.setContents(new StringSelection(textarea.getSelectedText()), null);
    }

    /**
     * DOCUMENT ME!
     *
     * @param e DOCUMENT ME!
     */
    public void pasteMenu_actionPerformed(ActionEvent e)
    {
        Clipboard c = Toolkit.getDefaultToolkit().getSystemClipboard();
        Transferable contents = c.getContents(this);

        if (contents == null)
        {
            return;
        }

        try
        {
            textarea.append((String) contents.getTransferData(
                    DataFlavor.stringFlavor));
        }
        catch (Exception ex)
        {
        }
    }

    /**
     * DOCUMENT ME!
     *
     * @param e DOCUMENT ME!
     */
    public void ok_actionPerformed(ActionEvent e)
    {
        String format = new IdentifyFile().Identify(getText(), "Paste");
        SequenceI[] sequences = null;

        if (FormatAdapter.formats.contains(format))
        {
          try{
            sequences = new FormatAdapter().readFile(getText(), "Paste", format);
          }catch(java.io.IOException ex)
          {
            JOptionPane.showInternalMessageDialog(Desktop.desktop,
                                                  "Couldn't read the pasted text.\n" +ex.toString(),
                                                  "Error parsing text",
                                                  JOptionPane.WARNING_MESSAGE);
          }
        }

        if (sequences != null)
        {
          if(viewport!=null)
          {
            for(int i=0; i<sequences.length; i++)
              viewport.getAlignment().addSequence(sequences[i]);

            viewport.firePropertyChange("alignment", null, viewport.getAlignment().getSequences());
          }
          else
          {
            AlignFrame af = new AlignFrame(new Alignment(sequences));
            af.currentFileFormat = format;
            Desktop.addInternalFrame(af, "Cut & Paste input - " + format,
                                     AlignFrame.NEW_WINDOW_WIDTH,
                                     AlignFrame.NEW_WINDOW_HEIGHT);
            af.statusBar.setText("Successfully pasted alignment file");

            try
            {
              af.setMaximum(jalview.bin.Cache.getDefault("SHOW_FULLSCREEN", false));
            }
            catch (Exception ex)
            {
            }

          }
            try
            {
                this.setClosed(true);
            }
            catch (Exception ex)
            {
            }
        }
    }

    /**
     * DOCUMENT ME!
     *
     * @param e DOCUMENT ME!
     */
    public void cancel_actionPerformed(ActionEvent e)
    {
        try
        {
            this.setClosed(true);
        }
        catch (Exception ex)
        {
        }
    }

    public void textarea_mousePressed(MouseEvent e)
    {
      if(SwingUtilities.isRightMouseButton(e))
      {
        JPopupMenu popup = new JPopupMenu("Edit");
        JMenuItem item = new JMenuItem("Copy");
        item.addActionListener(new ActionListener()
            {public void actionPerformed(ActionEvent e)
                  {
                    copyItem_actionPerformed(e);
                  }
            });
        popup.add(item);
        item = new JMenuItem("Paste");
        item.addActionListener(new ActionListener()
            {public void actionPerformed(ActionEvent e)
                  {
                    pasteMenu_actionPerformed(e);
                  }
            });
        popup.add(item);
        popup.show(this, e.getX()+10, e.getY()+textarea.getY()+40);

      }
    }

}