ui.selection->new_x1 = ui.selection->bbox.left;
ui.selection->new_x2 = ui.selection->bbox.right;
gnome_canvas_item_set(ui.selection->canvas_item, "dash", NULL, NULL);
ui.selection->new_x1 = ui.selection->bbox.left;
ui.selection->new_x2 = ui.selection->bbox.right;
gnome_canvas_item_set(ui.selection->canvas_item, "dash", NULL, NULL);