int type = d.getKeyType ();
tree = Glib::RefPtr<ViewBTree>(new ViewBTree (real_canvas->root(), "test.idx", d.getBlockSize (), type));
tree->signal_selected ().connect ( sigc::mem_fun (*real_frame, &ViewProperties::ShowItem) );
int type = d.getKeyType ();
tree = Glib::RefPtr<ViewBTree>(new ViewBTree (real_canvas->root(), "test.idx", d.getBlockSize (), type));
tree->signal_selected ().connect ( sigc::mem_fun (*real_frame, &ViewProperties::ShowItem) );