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_);
39 now_heads_.push (CHead_melodic_tuple (nh, m, now_mom()+ m->length_mom ()));
44 Tie_engraver::do_process_requests ()
48 Moment now = now_mom ();
49 Link_array<Note_head> nharr;
51 stopped_heads_.clear ();
52 while (past_notes_pq_.size ()
53 && past_notes_pq_.front ().end_ == now)
54 stopped_heads_.push (past_notes_pq_.get ());
60 Tie_engraver::process_acknowledged ()
64 if (now_heads_.size () != stopped_heads_.size ())
66 req_l_->warning ("Unequal number of note heads for tie");
68 int sz = now_heads_.size () <? stopped_heads_.size ();
70 // hmm. Should do something more sensible.
71 // because, we assume no more noteheads come along after the 1st pass.
72 if (sz > tie_p_arr_.size ())
74 now_heads_.sort (CHead_melodic_tuple::pitch_compare);
75 stopped_heads_.sort(CHead_melodic_tuple::pitch_compare);
77 for (int i=0; i < sz; i++)
80 p->set_head (LEFT, stopped_heads_[i].head_l_);
81 p->set_head (RIGHT, now_heads_[i].head_l_);
83 announce_element (Score_element_info (p, req_l_));
90 Tie_engraver::do_pre_move_processing ()
92 for (int i=0; i < now_heads_.size (); i++)
94 past_notes_pq_.insert (now_heads_[i]);
98 Scalar dir (get_property ("tieydirection", 0));
99 Scalar dir2 (get_property ("ydirection", 0));
101 Direction tie_dir = CENTER;
102 if (dir.length_i () && dir.isnum_b ())
103 tie_dir = (Direction) sign (int(dir));
104 else if (dir2.length_i () && dir2.isnum_b ())
105 tie_dir = (Direction) sign (int (dir2));
107 for (int i=0; i< tie_p_arr_.size (); i++)
109 tie_p_arr_[i]->dir_ = tie_dir;
110 typeset_element (tie_p_arr_[i]);
116 Tie_engraver::do_post_move_processing ()
119 Moment now = now_mom ();
120 while (past_notes_pq_.size () && past_notes_pq_.front ().end_ < now)
121 past_notes_pq_.delmin ();
124 ADD_THIS_TRANSLATOR(Tie_engraver);
127 CHead_melodic_tuple::CHead_melodic_tuple ()
134 CHead_melodic_tuple::CHead_melodic_tuple (Note_head *h, Melodic_req*m, Moment mom)
142 CHead_melodic_tuple::pitch_compare (CHead_melodic_tuple const&h1,
143 CHead_melodic_tuple const &h2)
145 return Melodic_req::compare (*h1.mel_l_, *h2.mel_l_);
149 CHead_melodic_tuple::time_compare (CHead_melodic_tuple const&h1,
150 CHead_melodic_tuple const &h2)
152 return (h1.end_ - h2.end_ ).sign ();