2 ctie-engraver.cc -- implement Tie_engraver
4 source file of the GNU LilyPond music typesetter
6 (c) 1998--1999 Han-Wen Nienhuys <hanwen@cs.uu.nl>
10 #include "tie-engraver.hh"
11 #include "command-request.hh"
12 #include "note-head.hh"
13 #include "musical-request.hh"
16 Tie_engraver::Tie_engraver()
23 Tie_engraver::do_try_music (Music *m)
25 if (Tie_req * c = dynamic_cast<Tie_req*> (m))
34 Tie_engraver::acknowledge_element (Score_element_info i)
36 if (Note_head *nh = dynamic_cast<Note_head *> (i.elem_l_))
38 Note_req * m = dynamic_cast<Note_req* > (i.req_l_);
41 now_heads_.push (CHead_melodic_tuple (nh, m, now_mom()+ m->length_mom ()));
46 Tie_engraver::do_process_requests ()
50 Moment now = now_mom ();
51 Link_array<Note_head> nharr;
53 stopped_heads_.clear ();
54 while (past_notes_pq_.size ()
55 && past_notes_pq_.front ().end_ == now)
56 stopped_heads_.push (past_notes_pq_.get ());
61 Tie_engraver::process_acknowledged ()
65 if (now_heads_.size () != stopped_heads_.size ())
67 req_l_->warning ("Unequal number of note heads for tie");
69 int sz = now_heads_.size () <? stopped_heads_.size ();
71 // hmm. Should do something more sensible.
72 // because, we assume no more noteheads come along after the 1st pass.
73 if (sz > tie_p_arr_.size ())
75 now_heads_.sort (CHead_melodic_tuple::pitch_compare);
76 stopped_heads_.sort(CHead_melodic_tuple::pitch_compare);
78 for (int i=0; i < sz; i++)
81 p->set_head (LEFT, stopped_heads_[i].head_l_);
82 p->set_head (RIGHT, now_heads_[i].head_l_);
84 announce_element (Score_element_info (p, req_l_));
91 Tie_engraver::do_pre_move_processing ()
93 for (int i=0; i < now_heads_.size (); i++)
95 past_notes_pq_.insert (now_heads_[i]);
99 Scalar dir (get_property ("tieydirection", 0));
100 Scalar dir2 (get_property ("ydirection", 0));
102 Direction tie_dir = CENTER;
103 if (dir.length_i () && dir.isnum_b ())
104 tie_dir = (Direction) sign (int(dir));
105 else if (dir2.length_i () && dir2.isnum_b ())
106 tie_dir = (Direction) sign (int (dir2));
108 for (int i=0; i< tie_p_arr_.size (); i++)
110 tie_p_arr_[i]->dir_ = tie_dir;
111 typeset_element (tie_p_arr_[i]);
117 Tie_engraver::do_post_move_processing ()
120 Moment now = now_mom ();
121 while (past_notes_pq_.size () && past_notes_pq_.front ().end_ < now)
122 past_notes_pq_.delmin ();
125 ADD_THIS_TRANSLATOR(Tie_engraver);
128 CHead_melodic_tuple::CHead_melodic_tuple ()
135 CHead_melodic_tuple::CHead_melodic_tuple (Note_head *h, Melodic_req*m, Moment mom)
143 CHead_melodic_tuple::pitch_compare (CHead_melodic_tuple const&h1,
144 CHead_melodic_tuple const &h2)
146 return Melodic_req::compare (*h1.mel_l_, *h2.mel_l_);
150 CHead_melodic_tuple::time_compare (CHead_melodic_tuple const&h1,
151 CHead_melodic_tuple const &h2)
153 return (h1.end_ - h2.end_ ).sign ();