package jalview.gui;

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

import jalview.datamodel.*;

import javax.swing.*;

public class IdPanel extends JPanel implements MouseListener, MouseMotionListener {

  protected IdCanvas       idCanvas;
  protected AlignViewport  av;
  protected AlignmentPanel alignPanel;

  protected int            offy;
  public    int            width;
  public    int            lastid;

  SequenceGroup selectedSequenceGroup;

  public IdPanel(AlignViewport av, AlignmentPanel parent)
  {
    this.av         = av;
    alignPanel = parent;
    idCanvas = new IdCanvas(av);
    setLayout(new BorderLayout());
    add(idCanvas, BorderLayout.CENTER);
    addMouseListener(this);
    addMouseMotionListener(this);
  }

  public void mouseMoved(MouseEvent e) {}

  public void selectSeqs(int start, int end) {
     if (end < start)
     {
       int tmp = start;
       start = end;
       end   = tmp;
     }

     for (int i = start; i <= end; i++)
     {
       SequenceI pickedSeq = av.getAlignment().getSequenceAt(i);
       if (av.getSelection().contains(pickedSeq))
       {
         av.getSelection().removeElement(pickedSeq);
         selectedSequenceGroup.deleteSequence(pickedSeq);
       }
       else
       {
         av.getSelection().addElement(pickedSeq);
         if(selectedSequenceGroup==null)
         {
           selectedSequenceGroup = new SequenceGroup();
           av.setRubberbandGroup( selectedSequenceGroup );
          // av.alignment.addGroup( selectedSequenceGroup );
           selectedSequenceGroup.setStartRes(0);
           selectedSequenceGroup.setEndRes( pickedSeq.getSequence().length());
         }

         selectedSequenceGroup.addSequence( pickedSeq );
       }

     }

     alignPanel.seqPanel.seqCanvas.paintFlag=true;
     alignPanel.repaint();
     repaint();

   }

  public void mouseDragged(MouseEvent e) {
    int y = e.getY();
    if(av.getWrapAlignment())
      y-=2*av.charHeight;
    int seq = av.getIndex(y);

    if (seq < lastid)
      selectSeqs(lastid - 1, seq);
    else if (seq > lastid)
      selectSeqs(lastid + 1, seq);

    lastid = seq;

    return;
  }

  public void mouseClicked(MouseEvent e)
  {
    if (e.getClickCount() == 2)
    {
       int y = e.getY();
       if(av.getWrapAlignment())
         y-=2*av.charHeight;

       int seq = av.getIndex(y);
       String id = av.getAlignment().getSequenceAt(seq).getName();

       try{
         jalview.util.BrowserLauncher.openURL(
             "http://srs.ebi.ac.uk/srs7bin/cgi-bin/wgetz?-e+[swall-id:" + id +
             "]+-vn+2");
       }catch(Exception ex){ex.printStackTrace();}
    }

  }
  public void mouseEntered(MouseEvent e) { }
  public void mouseExited (MouseEvent e) { }

  public void mousePressed(MouseEvent e) {
    if (e.getClickCount() == 2)
      return;

    int y = e.getY();
    if(av.getWrapAlignment())
      y-=2*av.charHeight;

    int seq = av.getIndex(y);

    if (javax.swing.SwingUtilities.isRightMouseButton(e))
    {
      jalview.gui.PopupMenu pop = new jalview.gui.PopupMenu(alignPanel,
          av.getAlignment().getSequenceAt(seq));
      pop.show(this, e.getX(), y);
      return;
    }



    if(av.getRubberbandGroup()!=null && (av.getRubberbandGroup().getSize() == av.getSelection().size()))
          selectedSequenceGroup = av.getRubberbandGroup();

    if (selectedSequenceGroup == null)
    {
      selectedSequenceGroup = new SequenceGroup();
      av.setRubberbandGroup(selectedSequenceGroup);
    }

    selectedSequenceGroup.setStartRes(0);
    selectedSequenceGroup.setEndRes(av.getAlignment().getWidth() - 1);

    if (seq != -1)
      selectSeqs(seq, seq);

    lastid = seq;


    return;
  }

  public void mouseReleased(MouseEvent e)
  {
    lastid = -1;
    PaintRefresher.Refresh(this);
    selectedSequenceGroup = null;
  }
}