vector/Vlib/write.c

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#include <grass/gis.h>
#include <grass/glocale.h>
#include <grass/Vect.h>

static long write_dummy()
{
    G_warning("Vect_write_line() %s",
              _("for this format/level not supported"));
    return -1;
}
static int rewrite_dummy()
{
    G_warning("Vect_rewrite_line() %s",
              _("for this format/level not supported"));
    return -1;
}
static int delete_dummy()
{
    G_warning("Vect_delete_line() %s",
              _("for this format/level not supported"));
    return -1;
}

static int restore_dummy()
{
    G_warning("Vect_restore_line() %s",
              _("for this format/level not supported"));
    return -1;
}

#ifndef HAVE_OGR
static int format()
{
    G_fatal_error(_("Requested format is not compiled in this version"));
    return 0;
}

static long format_l()
{
    G_fatal_error(_("Requested format is not compiled in this version"));
    return 0;
}

#endif

static long (*Write_line_array[][3]) () = {
    {
    write_dummy, V1_write_line_nat, V2_write_line_nat}
#ifdef HAVE_OGR
    , {
    write_dummy, write_dummy, write_dummy}
#else
    , {
    write_dummy, format_l, format_l}
#endif
};

static int (*Vect_rewrite_line_array[][3]) () = {
    {
    rewrite_dummy, rewrite_dummy, V2_rewrite_line_nat}
#ifdef HAVE_OGR
    , {
    rewrite_dummy, rewrite_dummy, rewrite_dummy}
#else
    , {
    rewrite_dummy, format, format}
#endif
};

static int (*Vect_delete_line_array[][3]) () = {
    {
    delete_dummy, delete_dummy, V2_delete_line_nat}
#ifdef HAVE_OGR
    , {
    delete_dummy, delete_dummy, delete_dummy}
#else
    , {
    delete_dummy, format, format}
#endif
};

static int (*Vect_restore_line_array[][3]) () = {
    {
    restore_dummy, restore_dummy, V2_restore_line_nat}
#ifdef HAVE_OGR
    , {
    restore_dummy, restore_dummy, restore_dummy}
#else
    , {
    restore_dummy, format, format}
#endif
};

long
Vect_write_line(struct Map_info *Map,
                int type, struct line_pnts *points, struct line_cats *cats)
{
    long offset;

    G_debug(3, "Vect_write_line(): name = %s, format = %d, level = %d",
            Map->name, Map->format, Map->level);

    if (!VECT_OPEN(Map))
        G_fatal_error(_("Unable to write feature, vector map is not opened"));

    dig_line_reset_updated(&(Map->plus));
    dig_node_reset_updated(&(Map->plus));
    if (!(Map->plus.update_cidx)) {
        Map->plus.cidx_up_to_date = 0;
    }

    offset =
        (*Write_line_array[Map->format][Map->level]) (Map, type, points,
                                                      cats);

    if (offset == -1)
        G_fatal_error(_("Unable to write feature (negative offset)"));

    return offset;
}


int
Vect_rewrite_line(struct Map_info *Map,
                  int line,
                  int type, struct line_pnts *points, struct line_cats *cats)
{
    long ret;

    G_debug(3, "Vect_rewrite_line(): name = %s, line = %d", Map->name, line);

    if (!VECT_OPEN(Map))
        G_fatal_error(_("Unable to rewrite feature, vector map is not opened"));

    dig_line_reset_updated(&(Map->plus));
    dig_node_reset_updated(&(Map->plus));
    if (!(Map->plus.update_cidx)) {
        Map->plus.cidx_up_to_date = 0;
    }

    ret =
        (*Vect_rewrite_line_array[Map->format][Map->level]) (Map, line, type,
                                                             points, cats);

    if (ret == -1)
        G_fatal_error(_("Unable to rewrite feature %d"), line);

    return ret;
}

int Vect_delete_line(struct Map_info *Map, int line)
{
    int ret;

    G_debug(3, "Vect_delete_line(): name = %s, line = %d", Map->name, line);

    if (Map->level < 2) {
        G_fatal_error(_("Unable to delete feature %d, "
                        "vector map <%s> is not opened on topology level"),
                      line, Map->name);
    }

    if (Map->mode != GV_MODE_RW && Map->mode != GV_MODE_WRITE) {
        G_fatal_error(_("Unable to delete feature %d, "
                        "vector map <%s> is not opened in 'write' mode"),
                      line, Map->name);
    }

    dig_line_reset_updated(&(Map->plus));
    dig_node_reset_updated(&(Map->plus));
    if (!(Map->plus.update_cidx)) {
        Map->plus.cidx_up_to_date = 0;
    }

    ret = (*Vect_delete_line_array[Map->format][Map->level]) (Map, line);

    if (ret == -1)
        G_fatal_error(_("Unable to delete feature %d from vector map <%s>"),
                      line, Map->name);

    return ret;
}

int Vect_restore_line(struct Map_info *Map, int line, long offset)
{
    int ret;

    G_debug(3, "Vect_restore_line(): name = %s, line = %d", Map->name, line);

    if (Map->level < 2) {
        G_fatal_error(_("Unable to restore feature %d, "
                        "vector map <%s> is not opened on topology level"),
                      line, Map->name);
    }

    if (Map->mode != GV_MODE_RW && Map->mode != GV_MODE_WRITE) {
        G_fatal_error(_("Unable to restore feature %d, "
                        "vector map <%s> is not opened in 'write' mode"),
                      line, Map->name);
    }

    dig_line_reset_updated(&(Map->plus));
    dig_node_reset_updated(&(Map->plus));
    if (!(Map->plus.update_cidx)) {
        Map->plus.cidx_up_to_date = 0;
    }

    ret = (*Vect_restore_line_array[Map->format][Map->level]) (Map, line, offset);

    if (ret == -1)
        G_fatal_error(_("Unable to restore feature %d from vector map <%s>"),
                      line, Map->name);
    
    return ret;
}