/*
 * 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
{
  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 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())
        {
          int colIndex =
              ( (Integer) ResidueProperties.aaHash.
               get(st2.nextToken())).intValue();

          colors[colIndex] = getColourFromString(colour);
        }
      }
    }
    catch(Exception ex)
  {
    System.out.println("Error parsing userDefinedColours:\n"
                       +token+"\n"+ex);
  }

  }

}