2 spanner.cc -- implement Spanner
4 source file of the GNU LilyPond music typesetter
6 (c) 1996, 1997--1998 Han-Wen Nienhuys <hanwen@stack.nl>
13 #include "outputter.hh"
15 IMPLEMENT_IS_TYPE_B1(Spanner,Score_elem);
18 Spanner::do_print() const
21 DOUT << "Between col ";
22 if (broken_into_l_arr_.size())
23 DOUT << "with broken pieces\n";
28 Spanner::break_into_pieces ()
30 if (broken_into_l_arr_.size())
33 Item * left = spanned_drul_[LEFT];
34 Item * right = spanned_drul_[RIGHT];
37 Link_array<Item> break_cols = pscore_l_->broken_col_range (left,right);
38 Link_array<Spanner> broken_into_l_arr;
40 break_cols.insert (left,0);
41 break_cols.push (right);
43 for (int i=1; i < break_cols.size(); i++)
45 Spanner* span_p = clone()->spanner ();
46 left = break_cols[i-1];
47 right = break_cols[i];
49 right = right->find_prebroken_piece(LEFT);
51 left = left->find_prebroken_piece(RIGHT);
53 assert (left&&right && left->line_l() == right->line_l());
55 span_p->set_bounds(LEFT,left);
56 span_p->set_bounds(RIGHT,right);
58 pscore_l_->typeset_broken_spanner (span_p);
59 broken_into_l_arr.push (span_p);
62 broken_into_l_arr_ = broken_into_l_arr;
66 Spanner::set_my_columns()
68 Direction i = (Direction)1;
71 if (!spanned_drul_[i]->line_l())
72 set_bounds(i,spanned_drul_[i]->find_prebroken_piece((Direction)-i));
74 while (flip(&i) != 1);
79 Spanner::set_bounds(Direction d, Item*i)
82 spanned_drul_[d]->attached_span_l_arr_.substitute(this,0);
86 i->attached_span_l_arr_.push(this);
88 if (spanned_drul_[Direction(-d)] == spanned_drul_[d]
90 warning ("Spanner (" + String (name ()) + ") with equal left and right spanpoints.");
94 Spanner::do_break_processing()
99 for (int i=0; i < broken_into_l_arr_.size(); i++)
100 broken_into_l_arr_[i]->handle_broken_dependencies();
104 handle_broken_dependencies();
111 spanned_drul_[LEFT]=0;
112 spanned_drul_[RIGHT]=0;
116 Spanner::do_brew_molecule ()
120 Molecule *output= brew_molecule_p ();
121 Offset left_off (spanned_drul_[LEFT]->absolute_coordinate(X_AXIS), 0);
122 Offset o = absolute_offset() + left_off;
123 pscore_l_->outputter_l_->output_molecule (output, o);
127 Spanner::do_width() const
129 Real l = spanned_drul_[LEFT]->absolute_coordinate (X_AXIS);
130 Real r = spanned_drul_[RIGHT]->absolute_coordinate (X_AXIS);
133 return Interval (0, r-l);
137 Spanner::line_l() const
139 if (!spanned_drul_[LEFT] || !spanned_drul_[RIGHT])
141 if (spanned_drul_[LEFT]->line_l() != spanned_drul_[RIGHT]->line_l())
143 return spanned_drul_[LEFT]->line_l();
148 Spanner::find_broken_piece (Line_of_score*l) const
150 for (int i=0; i < broken_into_l_arr_.size(); i++)
151 if (broken_into_l_arr_[i]->line_l() == l)
152 return broken_into_l_arr_[i];
158 Spanner::broken_b() const
160 return broken_into_l_arr_.size();
166 set_bounds (LEFT, 0);
167 set_bounds (RIGHT, 0);
171 Spanner::do_junk_links()
173 spanned_drul_[LEFT] = spanned_drul_[RIGHT] =0;
177 Spanner::get_rods () const
184 Spanner::do_space_processing ()
186 Array<Rod> rs (get_rods ());
187 for (int i=0; i < rs.size (); i++)
189 rs[i].add_to_cols ();