GP2.c

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#include <stdlib.h>
#include <string.h>

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

#include "gsget.h"

static int Site_ID[MAX_SITES];
static int Next_site = 0;

int GP_site_exists(int id)
{
    int i, found = 0;

    if (NULL == gp_get_site(id)) {
        return (0);
    }

    for (i = 0; i < Next_site && !found; i++) {
        if (Site_ID[i] == id) {
            found = 1;
        }
    }

    G_debug(3, "GP_site_exists(): found=%d", found);

    return (found);
}

int GP_new_site(void)
{
    geosite *np;

    if (Next_site < MAX_SITES) {
        np = gp_get_new_site();
        gp_set_defaults(np);
        Site_ID[Next_site] = np->gsite_id;
        ++Next_site;

        G_debug(3, "GP_new_site() id=%d", np->gsite_id);

        return (np->gsite_id);
    }

    return (-1);
}

int GP_num_sites(void)
{
    return (gp_num_sites());
}

int *GP_get_site_list(int *numsites)
{
    int i, *ret;

    *numsites = Next_site;

    if (Next_site) {
        ret = (int *)G_malloc(Next_site * sizeof(int)); /* G_fatal_error */
        if (!ret) {
            return (NULL);
        }

        for (i = 0; i < Next_site; i++) {
            ret[i] = Site_ID[i];
        }

        return (ret);
    }

    return (NULL);
}

int GP_delete_site(int id)
{
    int i, j, found = 0;

    G_debug(3, "GP_delete_site(): id=%d", id);

    if (GP_site_exists(id)) {
        gp_delete_site(id);

        for (i = 0; i < Next_site && !found; i++) {
            if (Site_ID[i] == id) {
                found = 1;
                for (j = i; j < Next_site; j++) {
                    Site_ID[j] = Site_ID[j + 1];
                }
            }
        }

        if (found) {
            --Next_site;
            return (1);
        }
    }

    return (-1);
}

int GP_load_site(int id, const char *filename)
{
    geosite *gp;

    if (NULL == (gp = gp_get_site(id))) {
        return (-1);
    }

    if (gp->points) {
        gp_free_sitemem(gp);
    }

    gp->filename = G_store(filename);

    gp->points = Gp_load_sites(filename, &(gp->n_sites),
                               &(gp->has_z), &(gp->has_att));

    if (gp->points) {
        return (1);
    }

    return (-1);
}

int GP_get_sitename(int id, char **filename)
{
    geosite *gp;

    if (NULL == (gp = gp_get_site(id))) {
        return (-1);
    }

    *filename = G_store(gp->filename);

    return (1);
}

int GP_get_sitemode(int id, int *atmod, int *color, int *width, float *size,
                    int *marker)
{
    geosite *gp;

    if (NULL == (gp = gp_get_site(id))) {
        return (-1);
    }

    *atmod = gp->attr_mode;
    *color = gp->color;
    *width = gp->width;
    *marker = gp->marker;
    *size = gp->size;

    return (1);
}

int GP_set_sitemode(int id, int atmod, int color, int width, float size,
                    int marker)
{
    geosite *gp;

    if (NULL == (gp = gp_get_site(id))) {
        return (-1);
    }

    gp->attr_mode = atmod;      /* FIX this - probably should be seperate */
    gp->color = color;
    gp->width = width;
    gp->marker = marker;
    gp->size = size;

    return (1);
}

int GP_attmode_color(int id, const char *filename)
{
    geosite *gp;

    if (NULL == (gp = gp_get_site(id))) {
        return (-1);
    }

    if (!gp->has_att) {
        return (0);
    }

    if (Gp_set_color(filename, gp->points)) {
        gp->attr_mode = ST_ATT_COLOR;
        return (1);
    }

    return (-1);
}

int GP_attmode_none(int id)
{
    geosite *gp;

    if (NULL == (gp = gp_get_site(id))) {
        return (-1);
    }

    gp->attr_mode = ST_ATT_NONE;

    return (1);
}

int GP_set_zmode(int id, int use_z)
{
    geosite *gp;

    if (NULL == (gp = gp_get_site(id))) {
        return (-1);
    }

    if (use_z) {
        if (gp->has_z) {
            gp->use_z = 1;
            return (1);
        }

        return (0);
    }

    gp->use_z = 0;
    return (1);
}

int GP_get_zmode(int id, int *use_z)
{
    geosite *gp;

    if (NULL == (gp = gp_get_site(id))) {
        return (-1);
    }

    *use_z = gp->use_z;
    return (1);
}

void GP_set_trans(int id, float xtrans, float ytrans, float ztrans)
{
    geosite *gp;

    G_debug(3, "GP_set_trans(): id=%d trans=%f,%f,%f",
            id, xtrans, ytrans, ztrans);

    gp = gp_get_site(id);
    if (gp) {
        gp->x_trans = xtrans;
        gp->y_trans = ytrans;
        gp->z_trans = ztrans;
    }

    return;
}

void GP_get_trans(int id, float *xtrans, float *ytrans, float *ztrans)
{
    geosite *gp;

    gp = gp_get_site(id);

    if (gp) {
        *xtrans = gp->x_trans;
        *ytrans = gp->y_trans;
        *ztrans = gp->z_trans;
    }

    G_debug(3, "GP_get_trans(): id=%d, trans=%f,%f,%f",
            id, *xtrans, *ytrans, *ztrans);

    return;
}

int GP_select_surf(int hp, int hs)
{
    geosite *gp;

    if (GP_surf_is_selected(hp, hs)) {
        return (1);
    }

    gp = gp_get_site(hp);

    if (gp && GS_surf_exists(hs)) {
        gp->drape_surf_id[gp->n_surfs] = hs;
        gp->n_surfs += 1;
        return (1);
    }

    return (-1);
}

int GP_unselect_surf(int hp, int hs)
{
    geosite *gp;
    int i, j;

    if (!GP_surf_is_selected(hp, hs)) {
        return (1);
    }

    gp = gp_get_site(hp);

    if (gp) {
        for (i = 0; i < gp->n_surfs; i++) {
            if (gp->drape_surf_id[i] == hs) {
                for (j = i; j < gp->n_surfs - 1; j++) {
                    gp->drape_surf_id[j] = gp->drape_surf_id[j + 1];
                }

                gp->n_surfs -= 1;
                return (1);
            }
        }
    }

    return (-1);
}

int GP_surf_is_selected(int hp, int hs)
{
    int i;
    geosite *gp;

    gp = gp_get_site(hp);

    if (gp) {
        for (i = 0; i < gp->n_surfs; i++) {
            if (hs == gp->drape_surf_id[i]) {
                return (1);
            }
        }
    }

    return (0);
}

void GP_draw_site(int id)
{
    geosurf *gs;
    geosite *gp;
    int i;
    float n, yo, xo, e;

    gp = gp_get_site(id);
    GS_get_region(&n, &yo, &xo, &e);

    /* kind of sloppy - maybe site files should have an origin, too */
    if (gp) {
        if (gp->use_z && gp->has_z) {
            gpd_3dsite(gp, xo, yo, 0);
        }
        else {
            for (i = 0; i < gp->n_surfs; i++) {
                gs = gs_get_surf(gp->drape_surf_id[i]);

                if (gs) {
                    gpd_2dsite(gp, gs, 0);
#ifdef TRACE_GP_FUNCS
                    G_debug(3, "Drawing site %d on Surf %d", id,
                            gp->drape_surf_id[i]);
                    print_site_fields(gp);
#endif
                }
            }
        }
    }

    return;
}

void GP_alldraw_site(void)
{
    int id;

    for (id = 0; id < Next_site; id++) {
        GP_draw_site(Site_ID[id]);
    }

    return;
}

int GP_Set_ClientData(int id, void *clientd)
{
    geosite *gp;

    gp = gp_get_site(id);

    if (gp) {
        gp->clientdata = clientd;
        return (1);
    }

    return (-1);
}

void *GP_Get_ClientData(int id)
{
    geosite *gp;

    gp = gp_get_site(id);
    if (gp) {
        return (gp->clientdata);
    }

    return (NULL);
}