#include <grass/gis.h>
#include <string.h>
#include <stdio.h>

static struct
{
    char *name;
    float r,g,b;
}colors[] =
{
    {"white",	1.00, 1.00, 1.00},
    {"black",	0.00, 0.00, 0.00},
    {"red",	1.00, 0.00, 0.00},
    {"green",	0.00, 1.00, 0.00},
    {"blue",	0.00, 0.00, 1.00},
    {"yellow",	1.00, 1.00, 0.00},
    {"magenta",	1.00, 0.00, 1.00},
    {"cyan",	0.00, 1.00, 1.00},
    {"aqua",    0.00, 0.75, 0.75},
    {"grey",	0.75, 0.75, 0.75},
    {"gray",	0.75, 0.75, 0.75},
    {"orange",	1.00, 0.50, 0.00},
    {"brown",	0.75, 0.50, 0.25},
    {"purple",	0.50, 0.00, 1.00},
    {"violet",	0.50, 0.00, 1.00},
    {"indigo",  0.00, 0.50, 1.00},

    {"",0.00,0.00,0.00}	/* do not modify this line */
} ;

int G_color_values (
    char *name,
    float *r,float *g,float *b)
{
    int i;

    *r = *g = *b = 0.0;
    for (i = 0; colors[i].name[0]; i++)
	if (strcmp (name, colors[i].name) == 0)
	{
	    *r = colors[i].r;
	    *g = colors[i].g;
	    *b = colors[i].b;
	    return 1;
	}
    return -1;
}

char *G_color_name (int n)
{
    int i;

    if (n >= 0)
	for (i = 0; colors[i].name[0]; i++)
	    if (i == n)
		return colors[i].name;
    return (char *) NULL;
}