/* TODO: don't delete them when they don't exist.
* we need to warn the user, but we should keep them in the GList.
* we need to know that they weren't referenced though when we
* do the a_dems_list_free().
*/
int a_dems_load_list ( GList **dems, gpointer threaddata )
{
GList *iter = *dems;
guint dem_count = 0;
const guint dem_total = g_list_length ( *dems );
while ( iter ) {
if ( ! a_dems_load((const gchar *) (iter->data)) ) {
GList *iter_temp = iter->next;
g_free ( iter->data );
(*dems) = g_list_remove_link ( (*dems), iter );
iter = iter_temp;
} else {
iter = iter->next;
}
/* When running a thread - inform of progress */
if ( threaddata ) {
dem_count++;
/* NB Progress also detects abort request via the returned value */
int result = a_background_thread_progress ( threaddata, ((gdouble)dem_count) / dem_total );
if ( result != 0 )
return -1; /* Abort thread */
}
}
return 0;
}
GList *a_dems_list_copy ( GList *dems )
{
GList *rv = g_list_copy ( dems );
GList *iter = rv;
while ( iter ) {
if ( ! a_dems_load((const gchar *) (iter->data)) ) {
GList *iter_temp = iter->next; /* delete link, don't bother strdup'ing and free'ing string */
rv = g_list_remove_link ( rv, iter );
iter = iter_temp;
} else {
iter->data = g_strdup((gchar *)iter->data); /* copy the string too. */
iter = iter->next;
}
}
return rv;
}
/* Try to add file full_path.
* filename will be copied.
* returns FALSE if file does not exists, TRUE otherwise.
*/
static gboolean dem_layer_add_file ( VikDEMLayer *vdl, const gchar *filename )
{
if ( g_file_test(filename, G_FILE_TEST_EXISTS) == TRUE ) {
/* only load if file size is not 0 (not in progress) */
struct stat sb;
stat ( filename, &sb );
if ( sb.st_size ) {
gchar *duped_path = g_strdup(filename);
vdl->files = g_list_prepend ( vdl->files, duped_path );
a_dems_load ( duped_path );
g_debug("%s: %s", __FUNCTION__, duped_path);
}
return TRUE;
} else
return FALSE;
}