2 tie.cc -- implement Tie
4 source file of the GNU LilyPond music typesetter
6 (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
9 #include "paper-def.hh"
11 #include "note-head.hh"
16 Tie::set_head (Direction d, Note_head * head_l)
18 assert (!head_l_drul_[d]);
19 head_l_drul_[d] = head_l;
21 add_dependency (head_l);
26 head_l_drul_[RIGHT] =0;
27 head_l_drul_[LEFT] =0;
32 Tie::set_default_dir()
34 int m= (head_l_drul_[LEFT]->position_i_ + head_l_drul_[RIGHT]->position_i_) /2;
35 dir_ = (m < 5)? DOWN : UP; // UGH
39 Tie::do_add_processing()
41 assert (head_l_drul_[LEFT] && head_l_drul_[RIGHT]);
42 set_bounds(LEFT,head_l_drul_[LEFT]);
43 set_bounds(RIGHT,head_l_drul_[RIGHT]);
47 Tie::do_post_processing()
49 Real nw_f = paper()->note_width ();
50 assert (head_l_drul_[LEFT] || head_l_drul_[RIGHT]);
55 pos_i_drul_[d] = (head_l_drul_[d])?
56 head_l_drul_[d]->position_i_ : head_l_drul_[(Direction)-d]->position_i_;
58 while ((d *= -1) != LEFT);
62 if (head_l_drul_[d] && head_l_drul_[d]->extremal_i_)
64 pos_i_drul_[d] += 2*dir_;
65 dx_f_drul_[d] += d * 0.25;
67 else if (head_l_drul_[d])
68 dx_f_drul_[d] += d*0.5;
71 pos_i_drul_[d] = pos_i_drul_[(Direction) -d];
73 *(spanned_drul_[d]->width ().length ()/nw_f -0.5);
76 while ((d *= -1) != LEFT);
82 Tie::do_substitute_dependency (Score_elem*o, Score_elem*n)
84 Note_head *new_l =n?(Note_head*)n->item():0;
85 if (o->item() == head_l_drul_[LEFT])
86 head_l_drul_[LEFT] = new_l;
87 else if (o->item() == head_l_drul_[RIGHT])
88 head_l_drul_[RIGHT] = new_l;
91 IMPLEMENT_IS_TYPE_B1(Tie,Bow);