- OptimizingLookupTable (Group const &, int);
- ~OptimizingLookupTable ();
- std::vector<Item*> get (Rect const &);
- std::vector<Item*> items_at_point (Duple) const;
+ OptimizingLookupTable (Item const &, int);
+ ~OptimizingLookupTable ();
+ std::vector<Item*> get (Rect const &);
+ std::vector<Item*> items_at_point (Duple const &) const;
+ bool has_item_at_point (Duple const & point) const;