+ ResolutionDial *resolutiondial;
+ bool changing_resolution_;
+ Gtk::Adjustment quality_adjustment_;
+ Gtk::SpinButton *quality_spin;
+ bool updating_quality_;
+ Gtk::ToggleButton *show_grid;
+ Gtk::ToggleButton *snap_grid;
+ bool toggling_show_grid;
+ bool toggling_snap_grid;