color.h

   1 /* color.h
   2  * Definitions for "toolkit-independent" colors
   3  *
   4  * $Id$
   5  *
   6  * Wireshark - Network traffic analyzer
   7  * By Gerald Combs <gerald@wireshark.org>
   8  * Copyright 1998 Gerald Combs
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License
  12  * as published by the Free Software Foundation; either version 2
  13  * of the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  23  */
  24
  25 #ifndef __COLOR_H__
  26 #define __COLOR_H__
  27
  28 #ifdef __cplusplus
  29 extern "C" {
  30 #endif /* __cplusplus */
  31
  32 /*
  33  * Data structure holding RGB value for a color.
  34  *
  35  * XXX - yes, I know, there's a "pixel" value in there as well; for
  36  * now, it's intended to look just like a GdkColor but not to require
  37  * that any GTK+ header files be included in order to use it.
  38  * The way we handle colors needs to be cleaned up somewhat, in order
  39  * to keep toolkit-specific stuff separate from toolkit-independent stuff.
  40  */
  41 typedef struct {
  42         guint32 pixel;
  43         guint16 red;
  44         guint16 green;
  45         guint16 blue;
  46 } color_t;
  47
  48 /** Initialize a color with R, G, and B values, including any toolkit-dependent
  49  ** work that needs to be done.
  50  *
  51  * @param color the color_t to be filled
  52  * @param red the red value for the color
  53  * @param green the green value for the color
  54  * @param blue the blue value for the color
  55  * @return TRUE if it succeeds, FALSE if it fails
  56  */
  57 gboolean initialize_color(color_t *color, guint16 red, guint16 green, guint16 blue);
  58
  59 #ifdef __cplusplus
  60 }
  61 #endif /* __cplusplus */
  62
  63 #endif /* __COLOR_H__ */