GV2.c

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

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

#include "gsget.h"

static int Vect_ID[MAX_VECTS];
static int Next_vect = 0;

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

    G_debug(3, "GV_vect_exists");

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

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

    return (found);
}

int GV_new_vector(void)
{
    geovect *nv;

    if (Next_vect < MAX_VECTS) {
        nv = gv_get_new_vect();
        gv_set_defaults(nv);
        Vect_ID[Next_vect] = nv->gvect_id;
        ++Next_vect;

        G_debug(3, "GV_new_vector(): id=%d", nv->gvect_id);

        return (nv->gvect_id);
    }

    return (-1);
}

int GV_num_vects(void)
{
    return (gv_num_vects());
}

int *GV_get_vect_list(int *numvects)
{
    int i, *ret;

    *numvects = Next_vect;

    if (Next_vect) {
        ret = (int *)G_malloc(Next_vect * sizeof(int));
        if (!ret) {
            return (NULL);
        }

        for (i = 0; i < Next_vect; i++) {
            ret[i] = Vect_ID[i];
        }

        return (ret);
    }

    return (NULL);
}

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

    G_debug(3, "GV_delete_vect");

    if (GV_vect_exists(id)) {
        gv_delete_vect(id);

        for (i = 0; i < Next_vect && !found; i++) {
            if (Vect_ID[i] == id) {
                found = 1;

                for (j = i; j < Next_vect; j++) {
                    Vect_ID[j] = Vect_ID[j + 1];
                }
            }
        }

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

    return (-1);
}

int GV_load_vector(int id, const char *filename)
{
    geovect *gv;

    if (NULL == (gv = gv_get_vect(id))) {
        return (-1);
    }

    if (gv->lines) {
        gv_free_vectmem(gv);
    }

    gv->filename = G_store(filename);

    if ((gv->lines = Gv_load_vect(filename, &(gv->n_lines)))) {
        return (1);
    }

    return (-1);
}

int GV_get_vectname(int id, char **filename)
{
    geovect *gv;

    if (NULL == (gv = gv_get_vect(id))) {
        return (-1);
    }

    *filename = G_store(gv->filename);

    return (1);
}

int GV_set_vectmode(int id, int mem, int color, int width, int flat)
{
    geovect *gv;

    if (NULL == (gv = gv_get_vect(id))) {
        return (-1);
    }

    gv->use_mem = mem;
    gv->color = color;
    gv->width = width;
    gv->flat_val = flat;

    return (1);
}

int GV_get_vectmode(int id, int *mem, int *color, int *width, int *flat)
{
    geovect *gv;

    if (NULL == (gv = gv_get_vect(id))) {
        return (-1);
    }

    *mem = gv->use_mem;
    *color = gv->color;
    *width = gv->width;
    *flat = gv->flat_val;

    return (1);
}

void GV_set_trans(int id, float xtrans, float ytrans, float ztrans)
{
    geovect *gv;

    G_debug(3, "GV_set_trans");

    gv = gv_get_vect(id);

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

    return;
}

int GV_get_trans(int id, float *xtrans, float *ytrans, float *ztrans)
{
    geovect *gv;

    gv = gv_get_vect(id);

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

        return (1);
    }

    return (-1);
}

int GV_select_surf(int hv, int hs)
{
    geovect *gv;

    if (GV_surf_is_selected(hv, hs)) {
        return (1);
    }

    gv = gv_get_vect(hv);

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

        return (1);
    }

    return (-1);
}

int GV_unselect_surf(int hv, int hs)
{
    geovect *gv;
    int i, j;

    if (!GV_surf_is_selected(hv, hs)) {
        return (1);
    }

    gv = gv_get_vect(hv);

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

                gv->n_surfs -= 1;

                return (1);
            }
        }
    }

    return (-1);
}

int GV_surf_is_selected(int hv, int hs)
{
    int i;
    geovect *gv;

    gv = gv_get_vect(hv);

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

    return (0);
}

void GV_draw_vect(int vid)
{
    geosurf *gs;
    geovect *gv;
    int i;

    gv = gv_get_vect(vid);

    if (gv) {
        for (i = 0; i < gv->n_surfs; i++) {
            gs = gs_get_surf(gv->drape_surf_id[i]);

            if (gs) {
                gvd_vect(gv, gs, 0);
            }
        }
    }

    return;
}

void GV_alldraw_vect(void)
{
    int id;

    for (id = 0; id < Next_vect; id++) {
        GV_draw_vect(Vect_ID[id]);
    }

    return;
}

void GV_draw_fastvect(int vid)
{
    geosurf *gs;
    geovect *gv;
    int i;

    gv = gv_get_vect(vid);

    if (gv) {
        for (i = 0; i < gv->n_surfs; i++) {
            gs = gs_get_surf(gv->drape_surf_id[i]);

            if (gs) {
                gvd_vect(gv, gs, 1);
            }
        }
    }

    return;
}

int GV_Set_ClientData(int id, void *clientd)
{
    geovect *gv;

    gv = gv_get_vect(id);
    if (gv) {
        gv->clientdata = clientd;

        return (1);
    }

    return (-1);
}

void *GV_Get_ClientData(int id)
{
    geovect *gv;

    gv = gv_get_vect(id);

    if (gv) {
        return (gv->clientdata);
    }

    return (NULL);
}