/*
- ctie-engraver.cc -- implement Tie_engraver
+ new-tie-engraver.cc -- implement Tie_engraver
source file of the GNU LilyPond music typesetter
- (c) 1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1998--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#include "tie-engraver.hh"
-#include "command-request.hh"
-#include "note-head.hh"
-#include "musical-request.hh"
#include "tie.hh"
+#include "context.hh"
+#include "protected-scm.hh"
+#include "spanner.hh"
+#include "tie-column.hh"
+#include "engraver.hh"
+#include "item.hh"
+#include "grob-pitch-tuple.hh"
+#include "warn.hh"
+#include "note-head.hh"
+#include "staff-symbol-referencer.hh"
+
+/**
+ Manufacture ties. Acknowledge noteheads, and put them into a
+ priority queue. If we have a TieEvent, connect the notes that finish
+ just at this time, and note that start at this time.
+
+ TODO: Remove the dependency on musical info. We should tie on the
+ basis of position and duration-log of the heads (not of the events).
+*/
-Tie_engraver::Tie_engraver()
+struct Head_event_tuple
{
- req_l_ = 0;
-}
+ Grob *head_;
+ SCM tie_definition_;
+ Music *event_;
+ Head_event_tuple()
+ {
+ }
+ Head_event_tuple(Grob *h, Music *m, SCM def)
+ {
+ head_ = h;
+ event_ = m;
+ tie_definition_ = def;
+ }
+};
+
+class Tie_engraver : public Engraver
+{
+ Music *event_;
+ Link_array<Grob> now_heads_;
+ Array<Head_event_tuple> heads_to_tie_;
+ Link_array<Grob> ties_;
+
+ Spanner * tie_column_;
+
+protected:
+ virtual void stop_translation_timestep ();
+ virtual void derived_mark () const;
+ virtual void start_translation_timestep ();
+ virtual void acknowledge_grob (Grob_info);
+ virtual bool try_music (Music*);
+ virtual void process_music ();
+ void typeset_tie (Grob*);
+public:
+ TRANSLATOR_DECLARATIONS (Tie_engraver);
+};
-bool
-Tie_engraver::do_try_music (Music *m)
+void
+Tie_engraver::derived_mark () const
{
- if (Tie_req * c = dynamic_cast<Tie_req*> (m))
- {
- req_l_ = c;
- return true;
- }
- return false;
+ Engraver::derived_mark ();
+ for (int i = 0; i < heads_to_tie_.size(); i++)
+ scm_gc_mark (heads_to_tie_[i].tie_definition_);
}
-void
-Tie_engraver::acknowledge_element (Score_element_info i)
+Tie_engraver::Tie_engraver ()
{
- if (Note_head *nh = dynamic_cast<Note_head *> (i.elem_l_))
+ event_ = 0;
+ tie_column_ = 0;
+}
+
+
+bool
+Tie_engraver::try_music (Music *mus)
+{
+ if (mus->is_mus_type ("tie-event"))
{
- Note_req * m = dynamic_cast<Note_req* > (i.req_l_);
- now_heads_.push (CHead_melodic_tuple (nh, m, now_mom()+ m->length_mom ()));
+ event_ = mus;
}
+
+ return true;
}
void
-Tie_engraver::do_process_requests ()
+Tie_engraver::process_music ()
{
- if (req_l_)
+ if (event_)
{
- Moment now = now_mom ();
- Link_array<Note_head> nharr;
-
- stopped_heads_.clear ();
- while (past_notes_pq_.size ()
- && past_notes_pq_.front ().end_ == now)
- stopped_heads_.push (past_notes_pq_.get ());
-
+ context ()->set_property ("tieMelismaBusy", SCM_BOOL_T);
}
}
void
-Tie_engraver::process_acknowledged ()
+Tie_engraver::acknowledge_grob (Grob_info i)
{
- if (req_l_)
+ if (Note_head::has_interface (i.grob_))
{
- if (now_heads_.size () != stopped_heads_.size ())
+ Grob * h = i.grob_;
+ now_heads_.push (h);
+ for (int i = heads_to_tie_.size (); i--;)
{
- req_l_->warning ("Unequal number of note heads for tie");
+ Grob *th = heads_to_tie_[i].head_;
+ Music * right_mus = unsmob_music (h->get_property ("cause"));
+ Music * left_mus = unsmob_music (th->get_property ("cause"));
+
+ /*
+ maybe should check positions too.
+ */
+ if (right_mus && left_mus
+ && ly_c_equal_p (right_mus->get_property ("pitch"),
+ left_mus->get_property ("pitch")))
+ {
+ Grob * p = new Spanner (heads_to_tie_[i].tie_definition_,
+ context()->get_grob_key ("Tie"));
+ announce_grob (p, heads_to_tie_[i].event_->self_scm ());
+ Tie::set_interface (p); // cannot remove yet!
+
+ Tie::set_head (p, LEFT, th);
+ Tie::set_head (p, RIGHT, h);
+
+ ties_.push (p);
+ heads_to_tie_.del (i);
+ }
}
- int sz = now_heads_.size () <? stopped_heads_.size ();
- // hmm. Should do something more sensible.
- // because, we assume no more noteheads come along after the 1st pass.
- if (sz > tie_p_arr_.size ())
+ if (ties_.size () && ! tie_column_)
{
- now_heads_.sort (CHead_melodic_tuple::pitch_compare);
- stopped_heads_.sort(CHead_melodic_tuple::pitch_compare);
-
- for (int i=0; i < sz; i++)
- {
- Tie * p = new Tie;
- p->set_head (LEFT, stopped_heads_[i].head_l_);
- p->set_head (RIGHT, now_heads_[i].head_l_);
- tie_p_arr_.push (p);
- announce_element (Score_element_info (p, req_l_));
- }
+ tie_column_ = make_spanner ("TieColumn", ties_[0]->self_scm ());
}
+
+ if (tie_column_)
+ for (int i = ties_.size (); i--;)
+ Tie_column::add_tie (tie_column_, ties_ [i]);
}
}
void
-Tie_engraver::do_pre_move_processing ()
+Tie_engraver::start_translation_timestep ()
{
- for (int i=0; i < now_heads_.size (); i++)
+ context ()->set_property ("tieMelismaBusy",
+ ly_bool2scm (heads_to_tie_.size ()));
+
+}
+
+void
+Tie_engraver::stop_translation_timestep ()
+{
+ if (ties_.size ())
{
- past_notes_pq_.insert (now_heads_[i]);
+ if (!to_boolean (get_property ("tieWaitForNote")))
+ {
+ heads_to_tie_.clear ();
+ }
+
+ for (int i = 0; i< ties_.size (); i++)
+ {
+ typeset_tie (ties_[i]);
+ }
+
+ ties_.clear ();
+ tie_column_ = 0;
}
- now_heads_.clear ();
+
+ if (event_)
+ {
+ SCM start_definition
+ = updated_grob_properties (context (), ly_symbol2scm ("Tie"));
- Scalar dir (get_property ("tieydirection", 0));
- Scalar dir2 (get_property ("ydirection", 0));
+ if (!to_boolean (get_property ("tieWaitForNote")))
+ heads_to_tie_.clear();
- Direction tie_dir = CENTER;
- if (dir.length_i () && dir.isnum_b ())
- tie_dir = (Direction) sign (int(dir));
- else if (dir2.length_i () && dir2.isnum_b ())
- tie_dir = (Direction) sign (int (dir2));
-
- for (int i=0; i< tie_p_arr_.size (); i++)
- {
- tie_p_arr_[i]->dir_ = tie_dir;
- typeset_element (tie_p_arr_[i]);
+ for (int i = 0; i < now_heads_.size(); i++)
+ {
+ heads_to_tie_.push (Head_event_tuple (now_heads_[i], event_,
+ start_definition
+ ));
+ }
}
- tie_p_arr_.clear ();
+
+ event_ = 0;
+ now_heads_.clear ();
}
void
-Tie_engraver::do_post_move_processing ()
+Tie_engraver::typeset_tie (Grob *her)
{
- req_l_ =0;
- Moment now = now_mom ();
- while (past_notes_pq_.size () && past_notes_pq_.front ().end_ < now)
- past_notes_pq_.delmin ();
-}
+ if (! (Tie::head (her, LEFT) && Tie::head (her, RIGHT)))
+ warning (_ ("lonely tie"));
-ADD_THIS_TRANSLATOR(Tie_engraver);
+ Direction d = LEFT;
+ Drul_array<Grob *> new_head_drul;
+ new_head_drul[LEFT] = Tie::head (her, LEFT);
+ new_head_drul[RIGHT] = Tie::head (her, RIGHT);
+ do {
+ if (!Tie::head (her, d))
+ new_head_drul[d] = Tie::head (her, (Direction)-d);
+ } while (flip (&d) != LEFT);
+ index_set_cell (her->get_property ("head-pair"), LEFT, new_head_drul[LEFT]->self_scm ());
+ index_set_cell (her->get_property ("head-pair"), RIGHT, new_head_drul[RIGHT]->self_scm ());
-CHead_melodic_tuple::CHead_melodic_tuple ()
-{
- head_l_ =0;
- mel_l_ =0;
- end_ = 0;
}
-CHead_melodic_tuple::CHead_melodic_tuple (Note_head *h, Melodic_req*m, Moment mom)
-{
- head_l_ = h;
- mel_l_ = m;
- end_ = mom;
-}
-
-int
-CHead_melodic_tuple::pitch_compare (CHead_melodic_tuple const&h1,
- CHead_melodic_tuple const &h2)
-{
- return Melodic_req::compare (*h1.mel_l_, *h2.mel_l_);
-}
-int
-CHead_melodic_tuple::time_compare (CHead_melodic_tuple const&h1,
- CHead_melodic_tuple const &h2)
-{
- return (h1.end_ - h2.end_ ).sign ();
-}
+ADD_TRANSLATOR (Tie_engraver,
+/* descr */ "Generate ties between noteheads of equal pitch.",
+/* creats*/ "Tie TieColumn",
+/* accepts */ "tie-event",
+/* acks */ "rhythmic-head-interface",
+/* reads */ "tieMelismaBusy",
+/* write */ "");
projects / lilypond.git / blobdiff