X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Finclude%2Fligature-engraver.hh;h=6f53331a4e5493627debd1ebea1bc48952f28726;hb=47db9a3883d726ca53e2133a3b2298f78dd6a32e;hp=453083d197fed3345c5f9af328ce059453a3865e;hpb=83ed05cef3bfcbd69f4148e8ee0669ca0664e214;p=lilypond.git

diff --git a/lily/include/ligature-engraver.hh b/lily/include/ligature-engraver.hh
index 453083d197..6f53331a4e 100644
--- a/lily/include/ligature-engraver.hh
+++ b/lily/include/ligature-engraver.hh
@@ -1,70 +1,64 @@
 /*
-  ligature-engraver.hh -- declare Ligature_engraver
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
+  Copyright (C) 2002--2015 Juergen Reuter <reuter@ipd.uka.de>
 
-  (c) 2002--2005 Juergen Reuter <reuter@ipd.uka.de>
+  LilyPond is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  LilyPond is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
 */
+
 #ifndef LIGATURE_ENGRAVER_HH
 #define LIGATURE_ENGRAVER_HH
 
 #include "engraver.hh"
 #include "moment.hh"
 
-
-/*
- * FIXME: Spanner *create_ligature_spanner () and virtual void
- * typeset_ligature (...) are abstract methods, such that we would
- * like to declare them abstract:
- *
- *    virtual Spanner *create_ligature_spanner () = 0;
- *    virtual void typeset_ligature (...) = 0;
- *
- * Unfortunately, clone_const_helper() (as expanded from the
- * TRANSLATOR_DECLARATIONS macro) requires this class to be
- * instantiatable, such that it may not have any abstract virtual
- * functions.  As a workaround, the actually abstract methods are
- * implemented, but produce a programming_error whenever called. --jr
- */
-
 class Ligature_engraver : public Engraver
 {
 protected:
-  PRECOMPUTED_VIRTUAL void stop_translation_timestep ();
+  Ligature_engraver ();
+  void stop_translation_timestep ();
   virtual void finalize ();
 
-
-  DECLARE_ACKNOWLEDGER(rest);
-  DECLARE_ACKNOWLEDGER(note_head);
-  virtual bool try_music (Music *);
-  PRECOMPUTED_VIRTUAL void process_music ();
-  virtual Spanner *create_ligature_spanner (); /* abstract method */
+  DECLARE_ACKNOWLEDGER (rest);
+  DECLARE_ACKNOWLEDGER (ligature_head);
+  virtual void listen_ligature (Stream_event *ev);
+  void process_music ();
+  virtual Spanner *create_ligature_spanner () = 0;
   virtual void typeset_ligature (Spanner *ligature,
-				 Array<Grob_info> primitives); /* abstract method */
+                                 vector<Grob_info> const &primitives) = 0;
   virtual Spanner *current_ligature ();
   SCM brew_ligature_primitive_proc;
 
 public:
-  TRANSLATOR_DECLARATIONS (Ligature_engraver);
+  // no TRANSLATOR_DECLARATIONS (Ligature_engraver) needed since this
+  // class is abstract
 
 private:
-  Drul_array<Music *> events_drul_;
+  Drul_array<Stream_event *> events_drul_;
 
   Spanner *ligature_;
-  Array<Grob_info> primitives_;
+  vector<Grob_info> primitives_;
 
   Spanner *finished_ligature_;
-  Array<Grob_info> finished_primitives_;
+  vector<Grob_info> finished_primitives_;
 
-  Music *prev_start_event_;
+  Stream_event *prev_start_event_;
 
   // moment where ligature started.
   Moment ligature_start_mom_;
 
   Grob *last_bound_;
-
-  void override_stencil_callback ();
-  void revert_stencil_callback ();
 };
 
 #endif // LIGATURE_ENGRAVER_HH