/*
- tie-performer.cc -- implement Tie_performer
+ new-tie-engraver.cc -- implement Tie_performer
source file of the GNU LilyPond music typesetter
- (c) 1999--2000 Jan Nieuwenhuizen <janneke@gnu.org>
+ (c) 1998--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#include "tie-performer.hh"
-#include "command-request.hh"
+#include "context.hh"
#include "audio-item.hh"
-#include "musical-request.hh"
+#include "event.hh"
+#include "pqueue.hh"
+#include "performer.hh"
+class Tie_performer : public Performer
+{
+ Music *event_;
+ Music *last_event_;
+ Array<Audio_element_info> now_heads_;
+ Array<Audio_element_info> heads_to_tie_;
-ADD_THIS_TRANSLATOR (Tie_performer);
+ bool ties_created_;
+
+protected:
+ virtual void stop_translation_timestep ();
+ virtual void start_translation_timestep ();
+ virtual void acknowledge_audio_element (Audio_element_info);
+ virtual bool try_music (Music*);
+ virtual void process_music ();
+public:
+ TRANSLATOR_DECLARATIONS(Tie_performer);
+};
-Tie_performer::Tie_performer()
-{
- req_l_ = 0;
-}
-bool
-Tie_performer::do_try_music (Music *m)
+
+Tie_performer::Tie_performer ()
{
- if (!req_l_)
- {
- if (Tie_req * c = dynamic_cast<Tie_req*> (m))
- {
- req_l_ = c;
- return true;
- }
- }
- return false;
+ event_ = 0;
+ last_event_ = 0;
}
-void
-Tie_performer::acknowledge_element (Audio_element_info i)
+
+bool
+Tie_performer::try_music (Music *mus)
{
- if (Audio_note *nh = dynamic_cast<Audio_note *> (i.elem_l_))
+ if (mus->is_mus_type ("tie-event"))
{
- 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_ = mus;
}
+
+ return true;
}
void
-Tie_performer::do_process_music ()
+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_)
+ daddy_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 ())
+ now_heads_.push (inf);
+ for (int i = heads_to_tie_.size (); i--;)
{
- int comp
- = Musical_pitch::compare (now_notes_[i].req_l_->pitch_ ,
- stopped_notes_[j].req_l_->pitch_);
-
- if (comp)
+ Music * right_mus = inf.event_;
+
+ Audio_note *th = dynamic_cast<Audio_note*> (heads_to_tie_[i].elem_);
+ Music * left_mus = heads_to_tie_[i].event_;
+
+ if (right_mus && left_mus
+ && gh_equal_p (right_mus->get_property ("pitch"),
+ left_mus->get_property ("pitch")))
{
- (comp < 0) ? i ++ : j++;
- continue;
+ an->tie_to (th);
}
- else
- {
- 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++;
-
- }
- }
-
- 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]);
- tie_p_arr_[i]->note_l_drul_[RIGHT]->tie_to (tie_p_arr_[i]->note_l_drul_[LEFT]);
- }
- tie_p_arr_.clear ();
+ daddy_context_->set_property ("tieMelismaBusy",
+ gh_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 ();
-}
-
-
-CNote_melodic_tuple::CNote_melodic_tuple ()
-{
- note_l_ =0;
- req_l_ =0;
- end_ = 0;
-}
-
-CNote_melodic_tuple::CNote_melodic_tuple (Audio_note *h, Melodic_req*m, Moment mom)
-{
- note_l_ = h;
- req_l_ = m;
- end_ = mom;
-}
-
-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_);
+ if (ties_created_)
+ {
+ heads_to_tie_.clear ();
+ last_event_ = 0;
+ }
+
+ if (event_)
+ {
+ heads_to_tie_ = now_heads_;
+ last_event_ = event_;
+ }
+ event_ = 0;
+ now_heads_.clear ();
}
-int
-CNote_melodic_tuple::time_compare (CNote_melodic_tuple const&h1,
- CNote_melodic_tuple const &h2)
-{
- return (h1.end_ - h2.end_ ).sign ();
-}
+ENTER_DESCRIPTION(Tie_performer,
+/* descr */ "Generate ties between noteheads of equal pitch.",
+/* creats*/ "",
+/* accepts */ "tie-event",
+/* acks */ "",
+/* reads */ "tieMelismaBusy",
+/* write */ "");
projects / lilypond.git / blobdiff