std::shared_ptr<Cinema> item_to_cinema (wxTreeListItem item) const;
std::shared_ptr<dcpomatic::Screen> item_to_screen (wxTreeListItem item) const;
std::shared_ptr<Cinema> item_to_cinema (wxTreeListItem item) const;
std::shared_ptr<dcpomatic::Screen> item_to_screen (wxTreeListItem item) const;