lilypond-manuals.css: edit color scheme and some spacing

[lilypond.git] / lily / score-performer.cc

diff --git a/lily/score-performer.cc b/lily/score-performer.cc
index f47963f5e9ae43405dbb7b4ef4baf5fc92cf7113..b44bb489f5b9ccec4b8c46eb97775ac9278eae25 100644 (file)
--- a/lily/score-performer.cc
+++ b/lily/score-performer.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 1996--2011 Jan Nieuwenhuizen <janneke@gnu.org>
+  Copyright (C) 1996--2015 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
@@ -30,7 +30,6 @@
 #include "string-convert.hh"
 #include "warn.hh"
 #include "audio-staff.hh"
-#include "audio-item.hh"
 
 ADD_TRANSLATOR_GROUP (Score_performer,
                       /* doc */
@@ -86,51 +85,60 @@ Score_performer::connect_to_context (Context *c)
   Performer_group::connect_to_context (c);
 
   Dispatcher *d = c->get_global_context ()->event_source ();
-  d->add_listener (GET_LISTENER (one_time_step), ly_symbol2scm ("OneTimeStep"));
-  d->add_listener (GET_LISTENER (prepare), ly_symbol2scm ("Prepare"));
-  d->add_listener (GET_LISTENER (finish), ly_symbol2scm ("Finish"));
+  d->add_listener (GET_LISTENER (Score_performer, one_time_step), ly_symbol2scm ("OneTimeStep"));
+  d->add_listener (GET_LISTENER (Score_performer, prepare), ly_symbol2scm ("Prepare"));
+  d->add_listener (GET_LISTENER (Score_performer, finish), ly_symbol2scm ("Finish"));
 }
 
 void
 Score_performer::disconnect_from_context ()
 {
   Dispatcher *d = context ()->get_global_context ()->event_source ();
-  d->remove_listener (GET_LISTENER (one_time_step), ly_symbol2scm ("OneTimeStep"));
-  d->remove_listener (GET_LISTENER (prepare), ly_symbol2scm ("Prepare"));
-  d->remove_listener (GET_LISTENER (finish), ly_symbol2scm ("Finish"));
+  d->remove_listener (GET_LISTENER (Score_performer, one_time_step), ly_symbol2scm ("OneTimeStep"));
+  d->remove_listener (GET_LISTENER (Score_performer, prepare), ly_symbol2scm ("Prepare"));
+  d->remove_listener (GET_LISTENER (Score_performer, finish), ly_symbol2scm ("Finish"));
 
   Performer_group::disconnect_from_context ();
 }
 
-IMPLEMENT_LISTENER (Score_performer, prepare);
 void
 Score_performer::prepare (SCM sev)
 {
-  Stream_event *ev = unsmob_stream_event (sev);
+  Stream_event *ev = unsmob<Stream_event> (sev);
   SCM sm = ev->get_property ("moment");
-  Moment *m = unsmob_moment (sm);
+  Moment *m = unsmob<Moment> (sm);
   audio_column_ = new Audio_column (*m);
   announce_element (Audio_element_info (audio_column_, 0));
   precomputed_recurse_over_translators (context (), START_TRANSLATION_TIMESTEP, UP);
 }
 
-IMPLEMENT_LISTENER (Score_performer, finish);
 void
 Score_performer::finish (SCM)
 {
   SCM channel_mapping = context ()->get_property ("midiChannelMapping");
-  bool use_ports = channel_mapping == ly_symbol2scm ("voice");
+  bool use_ports = scm_is_eq (channel_mapping, ly_symbol2scm ("voice"));
   performance_->ports_ = use_ports;
-  recurse_over_translators (context (),
-                            &Translator::finalize,
-                            &Translator_group::finalize,
-                            UP);
+  recurse_over_translators
+    (context (),
+     Callback0_wrapper::make_smob<Translator, &Translator::finalize> (),
+     Callback0_wrapper::make_smob<Translator_group, &Translator_group::finalize> (),
+     UP);
 }
 
-IMPLEMENT_LISTENER (Score_performer, one_time_step);
 void
 Score_performer::one_time_step (SCM)
 {
+  // audio_column_ can be 0 when prepare has not been called.  The
+  // condition is triggered when Simple_music_iterator implicitly
+  // creates a Score context, like when writing
+  //
+  // \score { { | c4 c c c } \midi { } }
+  //
+  // The same situation happens with the Score_engraver group, but it
+  // would appear not to suffer any bad side effects.
+
+  if (!audio_column_)
+    audio_column_ = new Audio_column (context ()->now_mom ());
   if (to_boolean (context ()->get_property ("skipTypesetting")))
     {
       if (!skipping_)
@@ -174,4 +182,3 @@ Score_performer::initialize ()
 
   Translator_group::initialize ();
 }
-