X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Finclude%2Fslur-engraver.hh;h=1885625ed91f6d5baca19f3e8f08781f8d35fbf0;hb=c154dcac0e1469911bd38cc7d2df5f5fc47e4982;hp=e69de29bb2d1d6434b8b29ae775ad8c2e48c5391;hpb=6d2a5deed2f5299232641efc67f8806683278aec;p=lilypond.git

diff --git a/lily/include/slur-engraver.hh b/lily/include/slur-engraver.hh
index e69de29bb2..1885625ed9 100644
--- a/lily/include/slur-engraver.hh
+++ b/lily/include/slur-engraver.hh
@@ -0,0 +1,75 @@
+/*
+  This file is part of LilyPond, the GNU music typesetter.
+
+  Copyright (C) 2013--2015 Mike Solomon <mike@mikesolomon.org>
+  Copyright (C) 2016 David Kastrup <dak@gnu.org>
+
+  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 SLUR_ENGRAVER_HH
+#define SLUR_ENGRAVER_HH
+
+#include "engraver.hh"
+#include <map>
+
+class Slur_engraver : public Engraver
+{
+protected:
+  struct Event_info {
+    Stream_event *slur_, *note_;
+    Event_info (Stream_event *slur, Stream_event *note)
+      : slur_ (slur), note_ (note)
+    { }
+  };
+  // protected so that subclasses can see them
+  vector<Event_info> start_events_;
+  vector<Event_info> stop_events_;
+
+  typedef std::multimap<Stream_event *, Spanner *> Note_slurs;
+  Drul_array<Note_slurs> note_slurs_;
+  vector<Grob *> slurs_;
+  vector<Grob *> end_slurs_;
+  vector<Grob_info> objects_to_acknowledge_;
+
+  virtual SCM event_symbol () const;
+  virtual bool double_property () const;
+  virtual SCM grob_symbol () const;
+  virtual const char* object_name () const;
+
+  void acknowledge_note_column (Grob_info);
+  void acknowledge_script (Grob_info);
+
+  void listen_note (Stream_event *ev);
+  // A slur on an in-chord note is not actually announced as an event
+  // but rather produced by the note listener.
+  void listen_note_slur (Stream_event *ev, Stream_event *note);
+  void listen_slur (Stream_event *ev) { listen_note_slur (ev, 0); }
+  void acknowledge_extra_object (Grob_info);
+  void stop_translation_timestep ();
+  void process_music ();
+
+  bool can_create_slur (SCM, vsize, vsize *, Stream_event *);
+  void create_slur (SCM spanner_id, Event_info evi, Grob *g_cause, Direction dir, bool left_broken);
+  bool try_to_end (Event_info evi);
+
+  virtual void set_melisma (bool);
+  virtual void finalize ();
+  virtual void derived_mark () const;
+
+public:
+  TRANSLATOR_DECLARATIONS (Slur_engraver);
+};
+
+#endif // SLUR_ENGRAVER_HH