bool studio::Widget_NavView::on_expose_draw(GdkEventExpose */*exp*/)
{
+#ifdef SINGLE_THREADED
// don't redraw if the previous redraw is still running single-threaded
// or we end up destroying the renderer that's rendering it
if (App::single_threaded && renderer && renderer->updating)
return false;
+#endif
//print out the zoom
//HACK kind of...