static gint gv_manager_raster_destroy_cb( GObject * raster_in,
gpointer cb_data )
{
GvManager *manager = GV_MANAGER(cb_data);
GvRaster *raster = GV_RASTER(raster_in);
GvDataset *ds = NULL;
int i, active_rasters = 0;
/*
* Find in our list. The dataset must already be "under management".
*/
for( i = 0; i < manager->datasets->len; i++ )
{
ds = (GvDataset *) g_ptr_array_index(manager->datasets, i);
if( raster->dataset == ds->dataset )
break;
}
if( i == manager->datasets->len )
{
g_warning( "gv_manager_raster_destroy_cb(): can't find dataset." );
return FALSE;
}
/*
* Find our GvRaster.
*/
for( i = 0; i < GDALGetRasterCount(ds->dataset); i++ )
{
if( ds->rasters[i] == raster ) {
/* MB: still not sure if we need to unref here... */
// if (G_OBJECT(raster)->ref_count > 1)
// g_object_unref(ds->rasters[i]);
ds->rasters[i] = NULL;
}
else if( ds->rasters[i] != NULL )
active_rasters++;
}
/*
* We apparently no longer need this GDALDataset. Dereference it, and
* remove from the list.
*/
if (active_rasters == 0)
{
if (GDALDereferenceDataset(ds->dataset) < 1) {
GDALClose(ds->dataset);
}
g_free(ds->rasters);
g_free(ds);
g_ptr_array_remove_fast(manager->datasets, ds);
}
return FALSE;
}
GvManager *gv_manager_new()
{
return GV_MANAGER(gtk_type_new(GV_TYPE_MANAGER));
}
