Color.hpp

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#pragma ident "$Id: Color.hpp 1644 2009-01-27 19:26:14Z ckiesch $"


//============================================================================
//
//  This file is part of GPSTk, the GPS Toolkit.
//
//  The GPSTk is free software; you can redistribute it and/or modify
//  it under the terms of the GNU Lesser General Public License as published
//  by the Free Software Foundation; either version 2.1 of the License, or
//  any later version.
//
//  The GPSTk 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 Lesser General Public License for more details.
//
//  You should have received a copy of the GNU Lesser General Public
//  License along with GPSTk; if not, write to the Free Software Foundation,
//  Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//  
//  Copyright 2004, The University of Texas at Austin
//
//============================================================================


#ifndef VDRAW_COLOR_H
#define VDRAW_COLOR_H

#include<string>
#include<list>
#include<cstdlib>

namespace vdraw
{

  class Color {

    public:


      static const int RED          = 0xFF0000; 
      static const int ORANGE       = 0xFFA500;
      static const int YELLOW       = 0xFFFF00;
      static const int GREEN        = 0x00FF00;
      static const int BLUE         = 0x0000FF;
      static const int VIOLET       = 0xEE82EE;
      static const int WHITE        = 0xFFFFFF;
      static const int BROWN        = 0xA5252A;
      static const int BLACK        = 0x000000;
      static const int GREY         = 0xBEBEBE;
      static const int GRAY         = 0xBEBEBE;
      static const int PINK         = 0xFFC0CB;
      static const int CYAN         = 0x00FFFF;
      static const int OLIVE        = 0x6B8E23;
      static const int KHAKI        = 0xBDB76B;
      static const int SKY_BLUE     = 0x87CEEB;
      static const int TURQUOISE    = 0x40E0D0;
      static const int CHARTREUSE   = 0x7FFF00; 
      static const int MAGENTA      = 0xFF00FF;
      static const int MAROON       = 0xB03060;
      static const int BURNT_ORANGE = 0xCD5500;
      static const int CARDINAL     = 0x9C0001; // The color, NOT the bird...
      static const int NAVY         = 0x000080;
      static const int FOREST_GREEN = 0x228B22;
      static const int DARK_PURPLE  = 0x800080;

      static const int CLEAR        = -1;

      Color(void) : rgb(BLACK) {};

      Color(int rgbDef)
      {
        if(rgbDef != CLEAR)
          rgbDef &= 0xFFFFFF;
        rgb = rgbDef;
      };

      Color(int red, int green, int blue) 
      {
        if( red < 0 ) red = 0;
        else if( red > 0xFF ) red = 0xFF;
        if( green < 0 ) green = 0;
        else if( green > 0xFF ) green = 0xFF;
        if( blue < 0 ) blue = 0;
        else if( blue > 0xFF ) blue = 0xFF;
        rgb = (red << 16) | (green << 8) | blue;
      };

      Color(const std::string& colorName) { setToString(colorName); }; 

      bool operator==(const Color& rhs) const {return (rgb==rhs.rgb);};

      bool operator!=(const Color& rhs) const {return (rgb!=rhs.rgb);};

      void setToString( const std::string& str);

      int getRGB( void ) const { return rgb; };

      void getRGBTriplet( short& red, short& green, short& blue ) const;

      void getRGBTripletFractional( double& red, double& green, 
          double& blue ) const;

      void setRGBTriplet( short red, short green, short blue );

      void setRGBTripletFractional( double red, double green, double blue );

      
      inline int dist(const Color& o) const
      {
        short r,g,b,ro,go,bo;
        this->getRGBTriplet(r,g,b);
        o.getRGBTriplet(ro,go,bo);
        return abs(r-ro)+abs(g-go)+abs(b-bo);
      }

      Color interpolate(double dist, const Color &o) const;

      bool isClear( void ) const { return rgb == CLEAR; }

    protected:

      int rgb;

    private:

  }; // class Color


} // namespace vdraw

#endif //VDRAW_COLOR_H

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