-/*
- tie-reg.cc -- implement Tie_engraver
-
+/*
+ tie-engraver.cc -- implement Tie_engraver
+
source file of the GNU LilyPond music typesetter
-
- (c) 1997--1998 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-
- essentially obsolete.
-*/
+ (c) 1998--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+
+ */
#include "tie-engraver.hh"
-#include "tie.hh"
-#include "note-head.hh"
+#include "command-request.hh"
+#include "rhythmic-head.hh"
#include "musical-request.hh"
-#include "music-list.hh"
+#include "tie.hh"
+#include "translator-group.hh"
+#include "spanner.hh"
+#include "tie-column.hh"
+#include "pqueue.hh"
+#include "engraver.hh"
+#include "item.hh"
-Tie_engraver::Tie_engraver()
+struct CHead_melodic_tuple {
+ Melodic_req *req_l_ ;
+ Grob *head_l_;
+ Moment end_;
+ CHead_melodic_tuple ();
+ CHead_melodic_tuple (Grob*, Melodic_req*, Moment);
+ static int pitch_compare (CHead_melodic_tuple const &, CHead_melodic_tuple const &);
+ static int time_compare (CHead_melodic_tuple const &, CHead_melodic_tuple const &);
+};
+
+inline int compare (CHead_melodic_tuple const &a, CHead_melodic_tuple const &b)
{
- end_tie_p_ = 0;
- tie_p_ = 0;
- req_l_ =0;
- end_req_l_ =0;
- end_mom_ = -1;
- melodic_req_l_ = 0;
- end_melodic_req_l_ =0;
- dir_ = CENTER;
+ return CHead_melodic_tuple::time_compare (a,b);
}
-void
-Tie_engraver::do_post_move_processing()
+
+/**
+ Manufacture ties. Acknowledge noteheads, and put them into a
+ priority queue. If we have a Tie_req, connect the notes that finish
+ just at this time, and note that start at this time.
+
+ TODO: junk the pq; the PQ is overkill if we assume that no
+ different durations occur in parallel.
+*/
+class Tie_engraver : public Engraver
{
- if (tie_p_ && now_moment () == end_mom_)
- {
- end_tie_p_ = tie_p_;
- end_req_l_ = req_l_;
- end_melodic_req_l_ = melodic_req_l_;
- tie_p_ =0;
- req_l_ =0;
- end_mom_ = -1;
- }
+ PQueue<CHead_melodic_tuple> past_notes_pq_;
+ Moment end_mom_;
+ Moment next_end_mom_;
+
+ Tie_req *req_l_;
+ Array<CHead_melodic_tuple> now_heads_;
+ Array<CHead_melodic_tuple> stopped_heads_;
+ Link_array<Grob> tie_p_arr_;
+
+ Spanner * tie_column_p_;
+
+ void set_melisma (bool);
+
+protected:
+ virtual void start_translation_timestep ();
+ virtual void stop_translation_timestep ();
+ virtual void acknowledge_grob (Grob_info);
+ virtual bool try_music (Music*);
+ virtual void create_grobs ();
+ void typeset_tie (Grob*);
+public:
+ VIRTUAL_COPY_CONS(Translator);
+ Tie_engraver();
+};
+
+
+
+Tie_engraver::Tie_engraver()
+{
+ req_l_ = 0;
+ tie_column_p_ = 0;
}
+
bool
-Tie_engraver::do_try_request (Request*r)
+Tie_engraver::try_music (Music *m)
{
- if (! (r->access_Musical_req () && r->access_Musical_req ()->access_Tie_req ()))
- return false;
-
- if (req_l_)
+ if (Tie_req * c = dynamic_cast<Tie_req*> (m))
{
- return false;
+ /* if (end_mom_ > now_mom ())
+ return false;
+ */
+ req_l_ = c;
+ SCM m = get_property ("automaticMelismata");
+ bool am = gh_boolean_p (m) &&gh_scm2bool (m);
+ if (am)
+ {
+ set_melisma (true);
+ }
+ return true;
}
- req_l_ = r->access_Musical_req ()->access_Tie_req ();
- end_mom_ = r->parent_music_l_->time_int().length ()
- + now_moment ();
- return true;
+ return false;
}
void
-Tie_engraver::do_process_requests()
+Tie_engraver::set_melisma (bool m)
{
- Scalar dir (get_property ("tieydirection"));
- Scalar dir2 (get_property ("ydirection"));
- if (!dir.length_i () && dir2.length_i ())
- {
- dir_ = (Direction) int(dir2);
- }
- else if (dir.length_i ())
- dir_ = (Direction) int (dir);
-
- if (req_l_ && ! tie_p_)
+ daddy_trans_l_->set_property ("tieMelismaBusy", m ? SCM_BOOL_T : SCM_BOOL_F);
+}
+
+void
+Tie_engraver::acknowledge_grob (Grob_info i)
+{
+ if (Rhythmic_head::has_interface (i.elem_l_))
{
- tie_p_ = new Tie;
- Scalar prop = get_property ("tiedash");
- if (prop.isnum_b ())
- tie_p_->dash_i_ = prop;
+ Note_req * m = dynamic_cast<Note_req* > (i.req_l_);
+ if (!m)
+ return;
+ now_heads_.push (CHead_melodic_tuple (i.elem_l_, m, now_mom()+ m->length_mom ()));
}
}
+
void
-Tie_engraver::acknowledge_element (Score_element_info i)
+Tie_engraver::create_grobs ()
{
- if (i.elem_l_->is_type_b (Note_head::static_name ()))
+ if (req_l_)
{
- if (tie_p_)
+ now_heads_.sort (CHead_melodic_tuple::pitch_compare);
+ stopped_heads_.sort(CHead_melodic_tuple::pitch_compare);
+
+ SCM head_list = SCM_EOL;
+
+ int j = stopped_heads_.size ()-1;
+ int i = now_heads_.size ()-1;
+
+ while (i >= 0 && j >=0)
{
- tie_p_->set_head (LEFT, (Note_head*)i.elem_l_->access_Item ());
- melodic_req_l_ = i.req_l_->access_Musical_req ()->access_Melodic_req ();
+ int comp
+ = Pitch::compare (*unsmob_pitch (now_heads_[i].req_l_->get_mus_property ("pitch") ),
+ *unsmob_pitch (stopped_heads_[j].req_l_->get_mus_property ("pitch")));
+
+ if (comp)
+ {
+ (comp < 0) ? j -- : i--;
+ continue;
+ }
+ else
+ {
+ head_list = gh_cons (gh_cons (stopped_heads_[j].head_l_->self_scm (),
+ now_heads_[i].head_l_->self_scm ()),
+ head_list);
+
+ past_notes_pq_. insert (now_heads_[i]);
+ now_heads_.del (i);
+ stopped_heads_.del (j);
+ i--;
+ j--;
+ }
}
- if (end_tie_p_)
+ SCM basic = get_property ("Tie");
+ SCM sparse = get_property ("sparseTies");
+ if (to_boolean (sparse))
+ {
+ int i = scm_ilength (head_list);
+
+ if (!i)
+ return;
+
+ SCM pair = gh_list_ref (head_list, gh_int2scm (i/2));
+
+ Spanner * p = new Spanner (basic);
+ Tie::set_head (p,LEFT, dynamic_cast<Item*> (unsmob_grob (gh_car (pair))));
+ Tie::set_head (p,RIGHT, dynamic_cast<Item*> (unsmob_grob (gh_cdr (pair))));
+
+ tie_p_arr_.push (p);
+ announce_grob (p, req_l_);
+ }
+ else for (SCM s = head_list; gh_pair_p (s); s = gh_cdr (s))
{
- end_tie_p_->set_head (RIGHT, (Note_head*)i.elem_l_->access_Item ());
- if (!Melodic_req::compare (*end_melodic_req_l_, *melodic_req_l_))
- end_tie_p_->same_pitch_b_ = true;
- announce_element (Score_element_info (end_tie_p_,end_req_l_));
+ Grob * p = new Spanner (basic);
+ Tie::set_interface (p);
+
+ Tie::set_head (p, LEFT, dynamic_cast<Item*> (unsmob_grob (gh_caar (s))));
+ Tie::set_head (p, RIGHT, dynamic_cast<Item*> (unsmob_grob (gh_cdar (s))));
+
+ tie_p_arr_.push (p);
+ announce_grob (p, req_l_);
+ }
+
+ if (tie_p_arr_.size () > 1 && !tie_column_p_)
+ {
+ tie_column_p_ = new Spanner (get_property ("TieColumn"));
+ Tie_column::set_interface (tie_column_p_);
+ for (int i = tie_p_arr_.size (); i--; )
+ Tie_column::add_tie (tie_column_p_,tie_p_arr_ [i]);
+ announce_grob (tie_column_p_, 0);
}
}
}
+
void
-Tie_engraver::do_pre_move_processing()
+Tie_engraver::stop_translation_timestep ()
{
- if (end_tie_p_)
+ for (int i=0; i < now_heads_.size (); i++)
{
- if (dir_)
- end_tie_p_->dir_ = dir_;
+ past_notes_pq_.insert (now_heads_[i]);
+ }
+ now_heads_.clear ();
- typeset_element (end_tie_p_);
- end_tie_p_ =0;
- end_req_l_ =0;
+ if (req_l_ && !tie_p_arr_.size ())
+ {
+ req_l_->origin ()->warning (_ ("No ties were created!"));
+ }
+
+ for (int i=0; i< tie_p_arr_.size (); i++)
+ {
+ typeset_tie (tie_p_arr_[i]);
+ }
+ tie_p_arr_.clear ();
+ if (tie_column_p_)
+ {
+ typeset_grob (tie_column_p_);
+ tie_column_p_ =0;
}
}
void
-Tie_engraver::do_removal_processing ()
+Tie_engraver::typeset_tie (Grob *her)
+{
+ if (!(Tie::head (her,LEFT) && Tie::head (her,RIGHT)))
+ warning (_ ("lonely tie"));
+
+ 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_grob_property ("heads"), LEFT, new_head_drul[LEFT]->self_scm () );
+ index_set_cell (her->get_grob_property ("heads"), RIGHT, new_head_drul[RIGHT]->self_scm () );
+
+ typeset_grob (her);
+}
+
+void
+Tie_engraver::start_translation_timestep ()
{
- do_pre_move_processing ();
- if (tie_p_)
+ SCM m = get_property ("automaticMelismata");
+ if (to_boolean (m))
{
- req_l_->warning (_ ("lonely tie"));
- tie_p_->unlink ();
- delete tie_p_;
- tie_p_ =0;
+ set_melisma (false);
}
-}
+ req_l_ = 0;
+ Moment now = now_mom ();
+ while (past_notes_pq_.size () && past_notes_pq_.front ().end_ < now)
+ past_notes_pq_.delmin ();
+ stopped_heads_.clear ();
+ while (past_notes_pq_.size ()
+ && past_notes_pq_.front ().end_ == now)
+ stopped_heads_.push (past_notes_pq_.get ());
+
+}
-IMPLEMENT_IS_TYPE_B1(Tie_engraver,Engraver);
ADD_THIS_TRANSLATOR(Tie_engraver);
+
+
+CHead_melodic_tuple::CHead_melodic_tuple ()
+{
+ head_l_ =0;
+ req_l_ =0;
+ end_ = 0;
+}
+
+CHead_melodic_tuple::CHead_melodic_tuple (Grob *h, Melodic_req*m, Moment mom)
+{
+ head_l_ = h;
+ req_l_ = m;
+ end_ = mom;
+}
+
+/*
+ signed compare, should use pitch<?
+ */
+int
+CHead_melodic_tuple::pitch_compare (CHead_melodic_tuple const&h1,
+ CHead_melodic_tuple const &h2)
+{
+ SCM p1 = h1.req_l_->get_mus_property ("pitch");
+ SCM p2 = h2.req_l_->get_mus_property ("pitch");
+
+ return Pitch::compare (*unsmob_pitch (p1),
+ *unsmob_pitch (p2));
+}
+
+int
+CHead_melodic_tuple::time_compare (CHead_melodic_tuple const&h1,
+ CHead_melodic_tuple const &h2)
+{
+ return (h1.end_ - h2.end_ ).sign ();
+}
projects / lilypond.git / blobdiff