#define LINE_GROUP_GRAV_HH
#include "engraver.hh"
+#include "lily-proto.hh"
/**
Engravers put elements on the same or lowel level in a line
*/
class Line_group_engraver : public Engraver{
+protected:
+
Vertical_group_spanner *staffline_p_;
-protected:
+
+ virtual void create_line_spanner ();
virtual void do_creation_processing();
virtual void do_removal_processing();
virtual void acknowledge_element (Score_elem_info);