package jalview.gui;

import jalview.jbgui.*;
import java.util.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class ScorePanel extends JPanel
{
  AlignViewport av;

  public ScorePanel(AlignViewport a)
  {
    av = a;
    setPreferredSize(new Dimension(500,80));
    addMouseMotionListener(new MouseMotionAdapter()
    { public void mouseMoved(MouseEvent evt)
      {
        doMouseMoved(evt);
      }
    });

    ToolTipManager.sharedInstance().registerComponent(this);
  }

  public void doMouseMoved(MouseEvent evt)
  {
     Vector freq = av.getConsensus(false);

     int col = (int)(evt.getX()/av.charWidth) +av.getStartRes();

     if(col >= av.getEndRes() || col >= freq.size())
       return;

     Hashtable hash = (Hashtable) freq.elementAt( col );

     String characters = hash.get("maxResidue").toString();

     if (characters.length()>1)
       this.setToolTipText(characters);
     else
       this.setToolTipText(null);
  }



  public void paintComponent(Graphics g)
  {
   setPreferredSize(new Dimension( this.getWidth(), 80));
   drawScorePanel(g, getWidth(), av.getStartRes(),  av.getChunkWidth());
  }

  public void drawScorePanel(Graphics g, int width, int startRes, int length)
  {
   g.setColor(Color.white);
   g.fillRect(0, 0,width, 80);
   g.setColor(Color.blue);
   g.setFont(av.getFont());

   Vector freq = av.getConsensus(false);

   int value, charOffset;
   String characters;
   char character;


   int i=0, iSize = length;
   if(iSize > freq.size())
     iSize=freq.size();

   for (i = 0; i < iSize; i++)
   {
     g.setColor(Color.blue);

     Hashtable hash = (Hashtable) freq.elementAt(i+startRes);
     if(hash.containsKey("maxResidue"))
            characters = hash.get("maxResidue").toString();
     else
       characters="@";
     character = characters.charAt(0);
     value = Integer.parseInt(hash.get("maxCount").toString());

     if (characters.length() > 1)
       character = '+';

     charOffset = (int) (av.charWidth -
                         g.getFontMetrics().charWidth(character)) / 2;
     g.drawString(character + "", charOffset + (int) (i * av.charWidth),
                  60 + (int) av.charWidth);

     value = (int) ( (float) value /
                    Float.parseFloat(hash.get("size").toString()) * 55);

     if ( !jalview.util.Comparison.isGap(character))
       g.fillRect( (int) (i * av.charWidth),
                  60 - value,
                  (int) av.charWidth,
                  value
                  );
   }
  }

}