colors.h

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#ifndef GRASS_COLORS_H
#define GRASS_COLORS_H
 
/* Don't add more colors here.
   These colors are the preallocated colors used in displays for efficiency.
   Adding colors here reduces the number of colors it is possible for a user to
   display. If support for named colors is needed it should go in
   G_str_to_color. */
 
#define BLACK   1
#define RED     2
#define GREEN   3
#define BLUE    4
#define YELLOW  5
#define CYAN    6
#define MAGENTA 7
#define WHITE   8
#define GRAY    9
#define ORANGE  10
#define AQUA    11
#define INDIGO  12
#define VIOLET  13
#define BROWN   14
 
#define GREY    GRAY
#define PURPLE  VIOLET
 
/* These can be in any order. They must match the lookup strings in the table
 * below. */
#define D_COLOR_LIST                                                     \
    "red,orange,yellow,green,blue,indigo,violet,white,black,gray,brown," \
    "magenta,aqua,grey,cyan,purple"
 
/* max length of color string */
#define MAX_COLOR_LEN 32
 
struct color_rgb {
    unsigned char r, g, b;
};
 
struct color_name {
    const char *name;
    int number;
};
 
#include <grass/defs/colors.h>
 
#endif