-// Gtk::VBox _vbox;
-// Gtk::ScrolledWindow _scroller;
-// Gtk::Image _image;
-// Glib::RefPtr<Gdk::Pixbuf> _pixbuf;
-// Glib::RefPtr<Gdk::Pixbuf> _cropped_pixbuf;
-// Glib::RefPtr<Gdk::Pixbuf> _scaled_pixbuf;
-// Gtk::HScale _position_slider;
-// Gtk::Allocation _last_scroller_allocation;