2 volta-spanner.cc -- implement Volta_spanner
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--1999 Jan Nieuwenhuizen <janneke@gnu.org>
13 #include "molecule.hh"
14 #include "note-column.hh"
15 #include "paper-column.hh"
17 #include "paper-def.hh"
18 #include "volta-spanner.hh"
21 #include "pointer.tcc"
23 Volta_spanner::Volta_spanner ()
29 Volta_spanner::do_brew_molecule_p () const
31 Molecule* mol_p = new Molecule;
33 if (!bar_arr_.size ())
36 bool no_vertical_start = false;
37 bool no_vertical_end = last_b_;
38 Spanner *orig_span = dynamic_cast<Spanner*> (original_l_);
39 if (orig_span && orig_span->broken_into_l_arr_[0] != this)
40 no_vertical_start = true;
41 if (orig_span && orig_span->broken_into_l_arr_.top () != this)
42 no_vertical_end = true;
43 if (bar_arr_.top ()->type_str_.length_i () > 1)
44 no_vertical_end = false;
46 Real interline_f = paper_l ()->get_realvar (interline_scm_sym);
47 Real internote_f = interline_f/2;
48 Real t = paper_l ()->get_realvar (volta_thick_scm_sym);
50 Real dx = internote_f;
51 Real w = extent (X_AXIS).length () - dx;
52 Real h = paper_l()->get_var ("volta_spanner_height");
53 Molecule volta (lookup_l ()->volta (h, w, t, no_vertical_start, no_vertical_end));
56 Molecule num (lookup_l ()->text ("volta", number_str_, paper_l ()));
57 Real dy = bar_arr_.top ()->extent (Y_AXIS) [UP] >
58 bar_arr_[0]->extent (Y_AXIS) [UP];
61 for (int i = 0; i < note_column_arr_.size (); i++)
62 dy = dy >? note_column_arr_[i]->extent (Y_AXIS)[BIGGER];
65 Molecule two (lookup_l ()->text ("number", "2", paper_l ()));
66 Real gap = two.dim_.x ().length () / 2;
67 Offset off (num.dim_.x ().length () + gap,
68 h / internote_f - gap);
70 mol_p->add_molecule (volta);
71 mol_p->add_molecule (num);
72 mol_p->translate (Offset (0, dy));
77 Volta_spanner::do_add_processing ()
81 set_bounds (LEFT, bar_arr_[0]);
82 set_bounds (RIGHT, bar_arr_.top ());
87 Volta_spanner::do_height () const
90 in most cases, it's a lot better not no have height...
97 Volta_spanner::do_post_processing ()
100 translate_axis (bar_arr_[0]->extent (Y_AXIS)[UP], Y_AXIS);
104 Volta_spanner::do_substitute_element_pointer (Score_element* o, Score_element* n)
106 if (Note_column* c = dynamic_cast <Note_column*> (o))
107 note_column_arr_.substitute (c, dynamic_cast<Note_column*> (n));
108 else if (Bar* c = dynamic_cast <Bar*> (o))
109 bar_arr_.substitute (c, dynamic_cast<Bar*> (n));
113 Volta_spanner::add_bar (Bar* c)
120 Volta_spanner::add_column (Note_column* c)
122 note_column_arr_.push (c);