wolffd@0: /* $Id: color.h,v 1.7 2009/06/03 01:10:51 ellson Exp $ $Revision: 1.7 $ */
wolffd@0: /* vim:set shiftwidth=4 ts=8: */
wolffd@0: 
wolffd@0: /**********************************************************
wolffd@0: *      This software is part of the graphviz package      *
wolffd@0: *                http://www.graphviz.org/                 *
wolffd@0: *                                                         *
wolffd@0: *            Copyright (c) 1994-2004 AT&T Corp.           *
wolffd@0: *                and is licensed under the                *
wolffd@0: *            Common Public License, Version 1.0           *
wolffd@0: *                      by AT&T Corp.                      *
wolffd@0: *                                                         *
wolffd@0: *        Information and Software Systems Research        *
wolffd@0: *              AT&T Research, Florham Park NJ             *
wolffd@0: **********************************************************/
wolffd@0: 
wolffd@0: #ifndef GV_COLOR_H
wolffd@0: #define GV_COLOR_H
wolffd@0: 
wolffd@0: /* #include "arith.h" */
wolffd@0: 
wolffd@0: #ifdef __cplusplus
wolffd@0: extern "C" {
wolffd@0: #endif
wolffd@0: 
wolffd@0: typedef struct hsvrgbacolor_t {
wolffd@0:     char *name;
wolffd@0:     unsigned char h, s, v;
wolffd@0:     unsigned char r, g, b, a;
wolffd@0: } hsvrgbacolor_t;
wolffd@0: 
wolffd@0: /* possible representations of color in gvcolor_t */
wolffd@0: typedef enum { HSVA_DOUBLE, RGBA_BYTE, RGBA_WORD, CMYK_BYTE,
wolffd@0: 		RGBA_DOUBLE, COLOR_STRING, COLOR_INDEX } color_type_t;
wolffd@0: 
wolffd@0: /* gvcolor_t can hold a color spec in a choice or representations */
wolffd@0: typedef struct color_s {
wolffd@0:     union {
wolffd@0: 	double RGBA[4];
wolffd@0: 	double HSVA[4];
wolffd@0: 	unsigned char rgba[4];
wolffd@0: 	unsigned char cmyk[4];
wolffd@0: 	int rrggbbaa[4];
wolffd@0: 	char *string;
wolffd@0: 	int index;
wolffd@0:     } u;
wolffd@0:     color_type_t type;
wolffd@0: } gvcolor_t;
wolffd@0: 
wolffd@0: #define COLOR_MALLOC_FAIL -1
wolffd@0: #define COLOR_UNKNOWN 1
wolffd@0: #define COLOR_OK 0
wolffd@0: 
wolffd@0: #ifdef __cplusplus
wolffd@0: }
wolffd@0: #endif
wolffd@0: #endif