Doc-es: various updates.

[lilypond.git] / lily / drum-note-performer.cc

diff --git a/lily/drum-note-performer.cc b/lily/drum-note-performer.cc
index 959d39eb9d01bca5877aecc2cb1afce034c12358..9fce62808fe910892b122b99831e53bb7370894d 100644 (file)
--- a/lily/drum-note-performer.cc
+++ b/lily/drum-note-performer.cc
@@ -1,9 +1,20 @@
 /*
-  note-performer.cc -- implement Drum_note_performer
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
+  Copyright (C) 1996--2015 Jan Nieuwenhuizen <janneke@gnu.org>
 
-  (c) 1996--2008 Jan Nieuwenhuizen <janneke@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/>.
 */
 
 #include "performer.hh"
@@ -22,13 +33,13 @@ public:
 protected:
   void stop_translation_timestep ();
   void process_music ();
-  DECLARE_TRANSLATOR_LISTENER (note);
+  void listen_note (Stream_event *);
 private:
-  vector<Stream_event*> note_evs_;
-  vector<Audio_note*> notes_;
+  vector<Stream_event *> note_evs_;
 };
 
-Drum_note_performer::Drum_note_performer ()
+Drum_note_performer::Drum_note_performer (Context *c)
+  : Performer (c)
 {
 }
 
@@ -45,33 +56,36 @@ Drum_note_performer::process_music ()
       SCM defn = SCM_EOL;
 
       if (scm_is_symbol (sym)
-         && (scm_hash_table_p (tab) == SCM_BOOL_T))
-       defn = scm_hashq_ref (tab, sym, SCM_EOL);
+          && to_boolean (scm_hash_table_p (tab)))
+        defn = scm_hashq_ref (tab, sym, SCM_EOL);
 
-      if (Pitch *pit = unsmob_pitch (defn))
-       {
+      if (Pitch *pit = unsmob<Pitch> (defn))
+        {
           SCM articulations = n->get_property ("articulations");
           Stream_event *tie_event = 0;
-          for (SCM s = articulations;
-               !tie_event && scm_is_pair (s);
-               s = scm_cdr (s))
+          Moment len = get_event_length (n, now_mom ());
+          int velocity = 0;
+          for (SCM s = articulations; scm_is_pair (s); s = scm_cdr (s))
             {
-              Stream_event *ev = unsmob_stream_event (scm_car (s));
+              Stream_event *ev = unsmob<Stream_event> (scm_car (s));
               if (!ev)
                 continue;
-         
+
               if (ev->in_event_class ("tie-event"))
                 tie_event = ev;
+              SCM f = ev->get_property ("midi-length");
+              if (ly_is_procedure (f))
+                len = robust_scm2moment (scm_call_2 (f, len.smobbed_copy (),
+                                                     context ()->self_scm ()),
+                                         len);
+              velocity += robust_scm2int (ev->get_property ("midi-extra-velocity"), 0);
             }
 
-         Moment len = get_event_length (n, now_mom ());
-
-         Audio_note *p = new Audio_note (*pit, len,
-                                          tie_event, Pitch (0, 0, 0));
-         Audio_element_info info (p, n);
-         announce_element (info);
-         notes_.push_back (p);
-       }
+          Audio_note *p = new Audio_note (*pit, len,
+                                          tie_event, Pitch (0, 0), velocity);
+          Audio_element_info info (p, n);
+          announce_element (info);
+        }
     }
 
   note_evs_.clear ();
@@ -80,27 +94,31 @@ Drum_note_performer::process_music ()
 void
 Drum_note_performer::stop_translation_timestep ()
 {
-  notes_.clear ();
   note_evs_.clear ();
 }
 
-IMPLEMENT_TRANSLATOR_LISTENER (Drum_note_performer, note);
 void
 Drum_note_performer::listen_note (Stream_event *ev)
 {
   note_evs_.push_back (ev);
 }
 
+void
+Drum_note_performer::boot ()
+{
+  ADD_LISTENER (Drum_note_performer, note);
+}
+
 ADD_TRANSLATOR (Drum_note_performer,
-               /* doc */
-               "Play drum notes.",
+                /* doc */
+                "Play drum notes.",
 
-               /* create */
-               "",
+                /* create */
+                "",
 
-               /* read */
-               "",
+                /* read */
+                "",
 
-               /* write */
-               ""
-               );
+                /* write */
+                ""
+               );