color_free.c

Go to the documentation of this file.

#include <stdlib.h>
#include <grass/gis.h>


int G_free_colors(struct Colors *colors)
{
    G__color_reset(colors);
    G_init_colors(colors);

    return 0;
}

/*******************************************
 * G__color* routines only to be used by other routines in this
 * library
 *******************************************/

int G__color_free_rules(struct _Color_Info_ *cp)
{
    struct _Color_Rule_ *rule, *next;

    for (rule = cp->rules; rule; rule = next) {
        next = rule->next;
        G_free(rule);
    }
    cp->rules = NULL;

    return 0;
}

int G__color_free_lookup(struct _Color_Info_ *cp)
{
    if (cp->lookup.active) {
        G_free(cp->lookup.red);
        G_free(cp->lookup.blu);
        G_free(cp->lookup.grn);
        G_free(cp->lookup.set);
        cp->lookup.active = 0;
    }

    return 0;
}

int G__color_free_fp_lookup(struct _Color_Info_ *cp)
{
    if (cp->fp_lookup.active) {
        G_free(cp->fp_lookup.vals);
        G_free(cp->fp_lookup.rules);
        cp->fp_lookup.active = 0;
        cp->fp_lookup.nalloc = 0;
    }

    return 0;
}

int G__color_reset(struct Colors *colors)
{
    G__color_free_lookup(&colors->fixed);
    G__color_free_lookup(&colors->modular);
    G__color_free_rules(&colors->fixed);
    G__color_free_rules(&colors->modular);
    colors->version = 0;
    /* this routine should NOT init the colors */

    return 0;
}