color.hxx

   1 //  $Id: color.hxx,v 1.8 2003/07/27 18:46:11 grumbel Exp $
   2 //
   3 //  Construo - A wire-frame construction game
   4 //  Copyright (C) 2002 Ingo Ruhnke <grumbel@gmx.de>
   5 //
   6 //  This program is free software; you can redistribute it and/or
   7 //  modify it under the terms of the GNU General Public License
   8 //  as published by the Free Software Foundation; either version 2
   9 //  of the License, or (at your option) any later version.
  10 //
  11 //  This program is distributed in the hope that it will be useful,
  12 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 //  GNU General Public License for more details.
  15 //
  16 //  You should have received a copy of the GNU General Public License
  17 //  along with this program; if not, write to the Free Software
  18 //  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  19
  20 #ifndef HEADER_CONSTRUO_COLOR_HXX
  21 #define HEADER_CONSTRUO_COLOR_HXX
  22
  23 /** */
  24 struct Color
  25 {
  26   float r;
  27   float g;
  28   float b;
  29   float a;
  30
  31   Color (int i) {
  32     r = ((i & 0xFF000000) >> 24) / 255.0f;
  33     g = ((i & 0x00FF0000) >> 16) / 255.0f;
  34     b = ((i & 0x0000FF00) >>  8) / 255.0f;
  35     a = ((i & 0x000000FF) >>  0) / 255.0f;
  36   }
  37
  38   Color (float r, float g, float b, float a = 1.0f)
  39   : r (r), g (g), b (b), a (a) {}
  40
  41   /** Convert the color into 0xRRGGBB format */
  42   inline unsigned int get_as_rrggbb () const
  43   {
  44     return ((unsigned int)(255 * b))
  45       |   (((unsigned int)(255 * g)) << 8)
  46       |   (((unsigned int)(255 * r)) << 16);
  47   }
  48 };
  49
  50 #endif
  51
  52 /* EOF */