lily/include/ligature-engraver.hh

   1 /*
   2   ligature-engraver.hh -- declare Ligature_engraver
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 2002--2007 Juergen Reuter <reuter@ipd.uka.de>
   7 */
   8
   9 #ifndef LIGATURE_ENGRAVER_HH
  10 #define LIGATURE_ENGRAVER_HH
  11
  12 #include "engraver.hh"
  13 #include "moment.hh"
  14
  15 class Ligature_engraver : public Engraver
  16 {
  17 protected:
  18   Ligature_engraver ();
  19   void stop_translation_timestep ();
  20   virtual void finalize ();
  21
  22   DECLARE_ACKNOWLEDGER (rest);
  23   DECLARE_ACKNOWLEDGER (note_head);
  24   virtual void listen_ligature (Stream_event *ev);
  25   void process_music ();
  26   virtual Spanner *create_ligature_spanner () = 0;
  27   virtual void typeset_ligature (Spanner *ligature,
  28                                  vector<Grob_info> primitives) = 0;
  29   virtual Spanner *current_ligature ();
  30   SCM brew_ligature_primitive_proc;
  31
  32 public:
  33   // no TRANSLATOR_DECLARATIONS (Ligature_engraver) needed since this
  34   // class is abstract
  35
  36 private:
  37   Drul_array<Stream_event *> events_drul_;
  38
  39   Spanner *ligature_;
  40   vector<Grob_info> primitives_;
  41
  42   Spanner *finished_ligature_;
  43   vector<Grob_info> finished_primitives_;
  44
  45   Stream_event *prev_start_event_;
  46
  47   // moment where ligature started.
  48   Moment ligature_start_mom_;
  49
  50   Grob *last_bound_;
  51 };
  52
  53 #endif // LIGATURE_ENGRAVER_HH