* input/regression/beam-quanting-horizontal.ly: update texidoc

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

diff --git a/lily/note-performer.cc b/lily/note-performer.cc
index 5471110e900fc0585a5ee7ced49ca30785a26eda..99d172f8eaf32ecc2b02b00333860d2d396af75a 100644 (file)
--- a/lily/note-performer.cc
+++ b/lily/note-performer.cc
@@ -3,55 +3,130 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 1996, 1997 Jan Nieuwenhuizen <jan@digicash.com>
+  (c) 1996--2003 Jan Nieuwenhuizen <janneke@gnu.org>
  */
 
-#include "note-performer.hh"
-#include "translator.hh"
-#include "input-translator.hh"
-#include "musical-request.hh"
+#include "performer.hh"
+#include "event.hh"
 #include "audio-item.hh"
-#include "debug.hh"
+#include "audio-column.hh"
+#include "global-translator.hh"
+#include "warn.hh"
 
-IMPLEMENT_IS_TYPE_B1(Note_performer,Performer);
+/**
+Convert reqs to audio notes.
+*/
+class Note_performer : public Performer {
+public:
+  TRANSLATOR_DECLARATIONS(Note_performer);
+  
+protected:
+  virtual bool try_music (Music *req) ;
 
-ADD_THIS_PERFORMER(Note_performer);
+  virtual void stop_translation_timestep ();
+  virtual void create_audio_elements ();
+  Global_translator* get_global_translator ();
 
-Note_performer::Note_performer()
+private:
+  Link_array<Music> note_reqs_;
+  Link_array<Audio_note> notes_;
+  Link_array<Audio_note> delayeds_;
+};
+
+void 
+Note_performer::create_audio_elements ()
 {
-    note_req_l_ = 0;
+  if (note_reqs_.size ())
+    {
+      int transposing_i = 0;
+      //urg
+      SCM prop = get_property ("transposing");
+      if (gh_number_p (prop)) 
+       transposing_i = gh_scm2int (prop);
+
+      while (note_reqs_.size ())
+       {
+         Music* n = note_reqs_.pop ();
+         Pitch pit =  * unsmob_pitch (n->get_mus_property ("pitch"));
+         Audio_note* p = new Audio_note (pit,  n->get_length (), transposing_i);
+         Audio_element_info info (p, n);
+         announce_element (info);
+         notes_.push (p);
+       }
+      note_reqs_.clear ();
+    }
 }
 
-void 
-Note_performer::do_print() const
+Global_translator*
+Note_performer::get_global_translator ()
 {
-#ifndef NPRINT
-    if ( note_req_l_ ) {
-       note_req_l_->print();
+  Translator *t = this;
+  Global_translator *global =0;
+  do
+    {
+      t = t->daddy_trans_ ;
+      global = dynamic_cast<Global_translator*> (t);
     }
-#endif
+  while (!global);
+
+  return global;
 }
 
-void 
-Note_performer::process_requests() 
+
+void
+Note_performer::stop_translation_timestep ()
 {
-    // this is _really_ braindead, but it generates some output
-    if ( !note_req_l_ || !note_req_l_->melodic()  || !note_req_l_->rhythmic() )
-       return;
 
-    play( new Audio_note( note_req_l_ ) );
-    note_req_l_ = 0;
+  // why don't grace notes show up here?
+  // --> grace notes effectively do not get delayed
+  Global_translator* global = get_global_translator ();
+  for (int i=0; i < notes_.size (); i++)
+    {
+      Audio_note* n = notes_[i];
+      Moment m= n->delayed_until_mom_;
+      if (m.to_bool ())
+       {
+         global->add_moment_to_process (m);
+         delayeds_.push (n);
+         notes_[i] = 0;
+         notes_.del (i);
+         i--;
+       }
+    }
+
+  Moment now = now_mom ();
+  for (int i=0; i < notes_.size (); i++)
+    {
+      play_element (notes_[i]);
+    }
+  notes_.clear ();
+  note_reqs_.clear ();
+  for (int i=0; i < delayeds_.size (); i++)
+    {
+      Audio_note* n = delayeds_[i];
+      if (n->delayed_until_mom_ <= now)
+       {
+         play_element (n);
+         delayeds_[i] = 0;
+         delayeds_.del (i);
+         i--;
+       }
+    }
+}
+ 
+bool
+Note_performer::try_music (Music* req)
+{
+  if (req->is_mus_type ("note-event"))
+    {
+      note_reqs_.push (req);
+      return true;
+    }
+  return false;
 }
 
-bool 
-Note_performer::do_try_request( Request* req_l )
+ENTER_DESCRIPTION(Note_performer,"","","note-event","","","");
+
+Note_performer::Note_performer()
 {
-    if ( note_req_l_ )
-       return false;
-    
-    if ( !req_l->musical() || !req_l->musical()->note() )
-       return false;
-
-    note_req_l_ = req_l->musical()->melodic();
-    return true;
 }