-protected:
- virtual void do_pre_processing ();
- virtual void do_substitute_dependency (Score_element *o, Score_element*n);
+ static bool has_interface (Grob *);
+ DECLARE_SCHEME_CALLBACK (force_shift_callback, (SCM, SCM));
+ DECLARE_SCHEME_CALLBACK (side_position, (SCM, SCM));
+ static SCM do_shifts (Grob *);