#include <gtkmm/widget_time.h>
#include <gtkmm/tooltips.h>
#include <gtkmm/comboboxtext.h>
+#include <gtkmm/spinbutton.h>
#include <synfig/gamma.h>
#include <synfig/time.h>
Gtk::Adjustment adj_pref_x_size;
Gtk::Adjustment adj_pref_y_size;
Gtk::Adjustment adj_pref_fps;
+ Gtk::SpinButton* pref_fps_spinbutton;
Gtk::Tooltips tooltips_;
public: