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