/*
note-performer.cc -- implement Note_performer
- (c) 1996, 1997 Han-Wen Nienhuys <hanwen@stack.nl>
- Jan Nieuwenhuizen <jan@digicash.com>
- */
+ source file of the GNU LilyPond music typesetter
-#include "note-performer.hh"
-#include "translator.hh"
-#include "input-translator.hh"
-#include "musical-request.hh"
-#include "midi-item.hh"
-#include "debug.hh"
+ (c) 1996--2007 Jan Nieuwenhuizen <janneke@gnu.org>
+*/
-IMPLEMENT_IS_TYPE_B1(Note_performer,Performer);
-IMPLEMENT_STATIC_NAME(Note_performer);
-ADD_THIS_PERFORMER(Note_performer);
+#include "performer.hh"
+#include "audio-item.hh"
+#include "audio-column.hh"
+#include "global-context.hh"
+#include "stream-event.hh"
+#include "warn.hh"
-Note_performer::Note_performer()
-{
- // is this what we want?
- // or do we need to cache/keep note until it has ended?
- note_req_l_ = 0;
-}
+#include "translator.icc"
-Note_performer::~Note_performer()
+/**
+ Convert evs to audio notes.
+*/
+class Note_performer : public Performer
{
-}
+public:
+ TRANSLATOR_DECLARATIONS (Note_performer);
-void
-Note_performer::do_print() const
-{
-#ifndef NPRINT
- if ( note_req_l_ )
- note_req_l_->print();
-#endif
-}
+protected:
+ void stop_translation_timestep ();
+ void process_music ();
+
+ DECLARE_TRANSLATOR_LISTENER (note);
+private:
+ vector<Stream_event*> note_evs_;
+ vector<Audio_note*> notes_;
+};
-void
-Note_performer::process_requests()
+void
+Note_performer::process_music ()
{
-// if ( when() == off_mom_ )
-// play_event( Note_event( current_l_->pitch() ) );
+ if (note_evs_.size ())
+ {
+ Pitch transposing;
+ SCM prop = get_property ("instrumentTransposition");
+ if (unsmob_pitch (prop))
+ transposing = *unsmob_pitch (prop);
-//Midi_note( Melodic_req* melreq_l, int channel_i, bool on_bo )
+ while (note_evs_.size ())
+ {
+ Stream_event *n = note_evs_.back ();
+ note_evs_.pop_back ();
+ SCM pit = n->get_property ("pitch");
- // this is _really_ braindead, but it generates some output
- if ( note_req_l_ && note_req_l_->melodic() ) {
- Midi_note n( note_req_l_->melodic(), 0, true );
- play_event( &n );
+ if (Pitch *pitp = unsmob_pitch (pit))
+ {
+ 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))
+ {
+ Stream_event *ev = unsmob_stream_event (scm_car (s));
+ if (!ev)
+ continue;
+
+ if (ev->in_event_class ("tie-event"))
+ tie_event = ev;
+ }
+
+ Moment len = get_event_length (n);
+ if (now_mom().grace_part_)
+ {
+ len.grace_part_ = len.main_part_;
+ len.main_part_ = Rational (0);
+ }
+
+ Audio_note *p = new Audio_note (*pitp, len,
+ tie_event, transposing.negated ());
+ Audio_element_info info (p, n);
+ announce_element (info);
+ notes_.push_back (p);
+ }
+ }
+ note_evs_.clear ();
}
- note_req_l_ = 0;
}
-bool
-Note_performer::try_request( Request* req_l )
+void
+Note_performer::stop_translation_timestep ()
{
- if ( note_req_l_ )
- return false;
-
- // huh?
-// if (req_l->musical() && (req_l->musical()->note() || req_l->musical()->rest()))
-// note_req_l_ = req_l->musical()->rhythmic();
- if ( req_l->musical() && req_l->musical()->note() )
- note_req_l_ = req_l->musical()->melodic();
- else
- return false;
+ // why don't grace notes show up here?
+ // --> grace notes effectively do not get delayed
+ notes_.clear ();
+ note_evs_.clear ();
+}
- return true;
+IMPLEMENT_TRANSLATOR_LISTENER (Note_performer, note)
+void
+Note_performer::listen_note (Stream_event *ev)
+{
+ note_evs_.push_back (ev);
}
+ADD_TRANSLATOR (Note_performer, "", "",
+ "", "");
+
+Note_performer::Note_performer ()
+{
+}