source file of the GNU LilyPond music typesetter
- (c) 1996, 1997--1998 Jan Nieuwenhuizen <jan@digicash.com>
- */
+ (c) 1996--2005 Jan Nieuwenhuizen <janneke@gnu.org>
+*/
-#include "note-performer.hh"
-#include "musical-request.hh"
+#include "performer.hh"
#include "audio-item.hh"
-#include "debug.hh"
+#include "audio-column.hh"
+#include "global-context.hh"
+#include "warn.hh"
+#include "music.hh"
-IMPLEMENT_IS_TYPE_B1(Note_performer,Performer);
-ADD_THIS_TRANSLATOR(Note_performer);
+/**
+ Convert evs to audio notes.
+*/
+class Note_performer : public Performer
+{
+public:
+ TRANSLATOR_DECLARATIONS (Note_performer);
+
+protected:
+ virtual bool try_music (Music *ev);
+
+ void stop_translation_timestep ();
+ virtual void create_audio_elements ();
+
+private:
+ Link_array<Music> note_evs_;
+ Link_array<Audio_note> notes_;
+};
-Note_performer::Note_performer()
+void
+Note_performer::create_audio_elements ()
{
- note_req_l_ = 0;
+ if (note_evs_.size ())
+ {
+ int transposing = 0;
+
+ SCM prop = get_property ("instrumentTransposition");
+ if (unsmob_pitch (prop))
+ transposing = unsmob_pitch (prop)->semitone_pitch ();
+
+ while (note_evs_.size ())
+ {
+ Music *n = note_evs_.pop ();
+ SCM pit = n->get_property ("pitch");
+
+ if (Pitch *pitp = unsmob_pitch (pit))
+ {
+ Audio_note *p = new Audio_note (*pitp, n->get_length (), - transposing);
+ Audio_element_info info (p, n);
+ announce_element (info);
+ notes_.push (p);
+ }
+ }
+ note_evs_.clear ();
+ }
}
-void
-Note_performer::do_print() const
+void
+Note_performer::stop_translation_timestep ()
{
-#ifndef NPRINT
- if (note_req_l_)
+ // why don't grace notes show up here?
+ // --> grace notes effectively do not get delayed
+ Moment now = now_mom ();
+ for (int i = 0; i < notes_.size (); i++)
{
- note_req_l_->print();
+ play_element (notes_[i]);
}
-#endif
+ notes_.clear ();
+ note_evs_.clear ();
}
-void
-Note_performer::do_process_requests()
+bool
+Note_performer::try_music (Music *ev)
{
- // this is _really_ braindead, but it generates some output
- if (!note_req_l_ || !note_req_l_->melodic() || !note_req_l_->rhythmic ())
- return;
+ if (ev->is_mus_type ("note-event"))
+ {
+ note_evs_.push (ev);
+ return true;
+ }
+ else if (ev->is_mus_type ("busy-playing-event"))
+ return note_evs_.size ();
- play (new Audio_note (note_req_l_));
- note_req_l_ = 0;
+ return false;
}
-bool
-Note_performer::do_try_request (Request* req_l)
+#include "translator.icc"
+
+ADD_TRANSLATOR (Note_performer, "", "",
+ "note-event busy-playing-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;
}