-/*
- tie-performer.cc -- implement
-
+/*
+ tie-performer.cc -- implement Tie_performer
+
source file of the GNU LilyPond music typesetter
-
- (c) 1999 Jan Nieuwenhuizen <janneke@gnu.org>
-
- */
-#include "tie-performer.hh"
-#include "command-request.hh"
-#include "audio-item.hh"
-#include "musical-request.hh"
+ (c) 1998--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
+*/
+#include "performer.hh"
-ADD_THIS_TRANSLATOR (Tie_performer);
+#include "audio-item.hh"
+#include "context.hh"
+#include "stream-event.hh"
+#include "translator.icc"
-Tie_performer::Tie_performer()
+class Tie_performer : public Performer
{
- req_l_ = 0;
-}
-
-bool
-Tie_performer::do_try_music (Music *m)
+ Stream_event *event_;
+ vector<Audio_element_info> now_heads_;
+ vector<Audio_element_info> now_tied_heads_;
+ vector<Audio_element_info> heads_to_tie_;
+
+ bool ties_created_;
+
+protected:
+ void stop_translation_timestep ();
+ void start_translation_timestep ();
+ virtual void acknowledge_audio_element (Audio_element_info);
+ void process_music ();
+ DECLARE_TRANSLATOR_LISTENER (tie);
+public:
+ TRANSLATOR_DECLARATIONS (Tie_performer);
+};
+
+Tie_performer::Tie_performer ()
{
- if (Tie_req * c = dynamic_cast<Tie_req*> (m))
- {
- req_l_ = c;
- return true;
- }
- return false;
+ event_ = 0;
+ ties_created_ = false;
}
+IMPLEMENT_TRANSLATOR_LISTENER (Tie_performer, tie);
void
-Tie_performer::acknowledge_element (Audio_element_info i)
+Tie_performer::listen_tie (Stream_event *ev)
{
- if (Audio_note *nh = dynamic_cast<Audio_note *> (i.elem_l_))
- {
- Note_req * m = dynamic_cast<Note_req* > (i.req_l_);
- if (!m)
- return;
- now_notes_.push (CNote_melodic_tuple (nh, m, now_mom()+ m->length_mom ()));
- }
+ event_ = ev;
}
void
-Tie_performer::do_process_requests ()
+Tie_performer::process_music ()
{
- if (req_l_)
- {
- Moment now = now_mom ();
- Link_array<Audio_note> nharr;
-
- stopped_notes_.clear ();
- while (past_notes_pq_.size ()
- && past_notes_pq_.front ().end_ == now)
- stopped_notes_.push (past_notes_pq_.get ());
- }
+ if (event_)
+ context ()->set_property ("tieMelismaBusy", SCM_BOOL_T);
}
void
-Tie_performer::process_acknowledged ()
+Tie_performer::acknowledge_audio_element (Audio_element_info inf)
{
- if (req_l_)
+ if (Audio_note *an = dynamic_cast<Audio_note *> (inf.elem_))
{
- now_notes_.sort (CNote_melodic_tuple::pitch_compare);
- stopped_notes_.sort(CNote_melodic_tuple::pitch_compare);
- int i=0;
- int j=0;
- int tie_count=0;
- while ( i < now_notes_.size () && j < stopped_notes_.size ())
+ if (an->tie_event_)
+ now_tied_heads_.push_back (inf);
+ else
+ now_heads_.push_back (inf);
+
+ for (vsize i = heads_to_tie_.size (); i--;)
{
- int comp
- = Musical_pitch::compare (now_notes_[i].req_l_->pitch_ ,
- stopped_notes_[j].req_l_->pitch_);
+ Stream_event *right_mus = inf.event_;
- if (comp)
- {
- (comp < 0) ? i ++ : j++;
- continue;
- }
- else
+ Audio_note *th = dynamic_cast<Audio_note *> (heads_to_tie_[i].elem_);
+ Stream_event *left_mus = heads_to_tie_[i].event_;
+
+ if (right_mus && left_mus
+ && ly_is_equal (right_mus->get_property ("pitch"),
+ left_mus->get_property ("pitch")))
{
- tie_count ++;
-
- /* don't go around recreating ties that were already
- made. Not infallible. Due to reordering in sort (),
- we will make the wrong ties when notenotes are
- added. */
- if (tie_count > tie_p_arr_.size ())
- {
- Audio_tie * p = new Audio_tie;
- p->set_note (LEFT, stopped_notes_[j].note_l_);
- p->set_note (RIGHT, now_notes_[i].note_l_);
- tie_p_arr_.push (p);
- announce_element (Audio_element_info (p, req_l_));
- }
- i++;
- j++;
-
+ an->tie_to (th);
+ ties_created_ = true;
}
}
-
- if (!tie_p_arr_.size ())
- {
- req_l_->warning (_("No ties were created!"));
- }
-
}
}
void
-Tie_performer::do_pre_move_processing ()
+Tie_performer::start_translation_timestep ()
{
- for (int i=0; i < now_notes_.size (); i++)
- {
- past_notes_pq_.insert (now_notes_[i]);
- }
- now_notes_.clear ();
-
- for (int i=0; i< tie_p_arr_.size (); i++)
- {
- //play_element (tie_p_arr_[i]);
- /*
- urg.
- doesn't work for c ~ c ~ c
- */
- tie_p_arr_[i]->note_l_drul_[LEFT]->length_mom_ +=
- tie_p_arr_[i]->note_l_drul_[RIGHT]->length_mom_;
- tie_p_arr_[i]->note_l_drul_[RIGHT]->length_mom_ = 0;
- }
- tie_p_arr_.clear ();
+ context ()->set_property ("tieMelismaBusy",
+ ly_bool2scm (heads_to_tie_.size ()));
}
void
-Tie_performer::do_post_move_processing ()
+Tie_performer::stop_translation_timestep ()
{
- req_l_ =0;
- Moment now = now_mom ();
- while (past_notes_pq_.size () && past_notes_pq_.front ().end_ < now)
- past_notes_pq_.delmin ();
-}
+ if (ties_created_)
+ {
+ heads_to_tie_.clear ();
+ ties_created_ = false;
+ }
+ if (event_)
+ {
+ heads_to_tie_ = now_heads_;
+ }
-CNote_melodic_tuple::CNote_melodic_tuple ()
-{
- note_l_ =0;
- req_l_ =0;
- end_ = 0;
-}
+ for (vsize i = now_tied_heads_.size (); i--;)
+ heads_to_tie_.push_back (now_tied_heads_[i]);
-CNote_melodic_tuple::CNote_melodic_tuple (Audio_note *h, Melodic_req*m, Moment mom)
-{
- note_l_ = h;
- req_l_ = m;
- end_ = mom;
+ event_ = 0;
+ now_heads_.clear ();
+ now_tied_heads_.clear ();
}
-int
-CNote_melodic_tuple::pitch_compare (CNote_melodic_tuple const&h1,
- CNote_melodic_tuple const &h2)
-{
- return Melodic_req::compare (*h1.req_l_, *h2.req_l_);
-}
+ADD_TRANSLATOR (Tie_performer,
+ /* doc */
+ "Generate ties between note heads of equal pitch.",
-int
-CNote_melodic_tuple::time_compare (CNote_melodic_tuple const&h1,
- CNote_melodic_tuple const &h2)
-{
- return (h1.end_ - h2.end_ ).sign ();
-}
+ /* create */
+ "",
+
+ /* read */
+ "tieMelismaBusy",
+
+ /* write */
+ ""
+ );
projects / lilypond.git / blobdiff