/*
 * Jalview - A Sequence Alignment Editor and Viewer
 * Copyright (C) 2006 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.schemes;

import java.awt.*;
import java.util.StringTokenizer;

public class UserColourScheme
    extends ResidueColourScheme
{
  Color [] lowerCaseColours;

  protected String schemeName;

  public UserColourScheme()
  {  }

  public UserColourScheme(Color[] newColors)
  {
    colors = newColors;
  }

  public UserColourScheme(String colour)
  {
    Color col = getColourFromString(colour);

    if(col==null)
    {
      System.out.println("Unknown colour!! "+colour);
      col = createColourFromName(colour);
    }

    colors = new Color[24];
    for(int i=0; i<24; i++)
      colors[i] = col;
  }

  public Color[] getColours()
  {
    return colors;
  }

  public Color[] getLowerCaseColours()
  {
    return lowerCaseColours;
  }

  public void setName(String name)
  {
    schemeName = name;
  }

  public String getName()
  {
    return schemeName;
  }

  public Color getColourFromString(String colour)
  {
    colour = colour.trim();

    Color col = null;
    try
    {
      int value = Integer.parseInt(colour, 16);
      col = new Color(value);
    }
    catch (NumberFormatException ex)
    {}

    if (col == null)
      col = ColourSchemeProperty.getAWTColorFromName(colour);

    if (col == null)
    {
      try
      {
        java.util.StringTokenizer st = new java.util.StringTokenizer(colour,
            ",");
        int r = Integer.parseInt(st.nextToken());
        int g = Integer.parseInt(st.nextToken());
        int b = Integer.parseInt(st.nextToken());
        col = new Color(r, g, b);
      }
      catch (Exception ex)
      {}
    }

    return col;

  }

  public Color createColourFromName(String name)
  {
    int r, g, b;

    int lsize = name.length();
    int start = 0, end = lsize / 3;

    int rgbOffset = Math.abs(name.hashCode() % 10) * 15;

    r = Math.abs(name.substring(start, end).hashCode() + rgbOffset) % 210 + 20;
    start = end;
    end += lsize / 3;
    if (end > lsize)
      end = lsize;

    g = Math.abs(name.substring(start, end).hashCode() + rgbOffset) % 210 + 20;

    b = Math.abs(name.substring(end).hashCode() + rgbOffset) % 210 + 20;

    Color color = new Color(r, g, b);

    return color;
  }

  public void parseAppletParameter(String paramValue)
  {
    StringTokenizer st = new StringTokenizer(paramValue, ";");
    StringTokenizer st2;
    String token=null, colour, residues;
    try{
      while (st.hasMoreElements())
      {
        token = st.nextToken().trim();
        residues = token.substring(0, token.indexOf("="));
        colour = token.substring(token.indexOf("=") + 1);

        st2 = new StringTokenizer(residues, " ,");
        while (st2.hasMoreTokens())
        {
          token = st2.nextToken();

          if (ResidueProperties.aaHash.get(token) == null)
            continue;

          int colIndex =
              ( (Integer) ResidueProperties.aaHash.
               get(token)).intValue();

           //AW - LOWER CASE DISABLED IN 2.1.01 bug fix release

          if(token.equalsIgnoreCase("lowerCase"))
          {
            if (lowerCaseColours == null)
              lowerCaseColours = new Color[23];
            for (int i = 0; i < 23; i++)
              if (lowerCaseColours[i] == null)
                lowerCaseColours[i] = getColourFromString(colour);

              continue;
          }

          if(token.equals(token.toLowerCase()))
          {
            if(lowerCaseColours==null)
            {
              lowerCaseColours = new Color[23];
            }
            lowerCaseColours[colIndex] = getColourFromString(colour);
          }
          else
            colors[colIndex] = getColourFromString(colour);
        }
      }
    }
    catch(Exception ex)
  {
    System.out.println("Error parsing userDefinedColours:\n"
                       +token+"\n"+ex);
  }

  }



  public Color findColour(String s, int j)
  {
      int index = ((Integer) (ResidueProperties.aaHash.get(s))).intValue();

      if ((threshold == 0) || aboveThreshold(ResidueProperties.aa[index], j))
      {
       //AW - LOWER CASE DISABLED IN 2.1.01 bug fix release
        if(lowerCaseColours!=null && 'a' <= s.charAt(0) && s.charAt(0) <= 'z')
          currentColour = lowerCaseColours[index];
        else
          currentColour = colors[index];
      }
      else
      {
          currentColour = Color.white;
      }

      if(conservationColouring)
        applyConservation(j);


      return currentColour;
   }

   public void setLowerCaseColours(Color [] lcolours)
   {
     lowerCaseColours = lcolours;
   }

}