2 plet-spanner.cc -- implement Tuplet_spanner
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--1999 Jan Nieuwenhuizen <janneke@gnu.org>
9 todo: handle breaking elegantly.
16 #include "molecule.hh"
18 #include "paper-def.hh"
19 #include "tuplet-spanner.hh"
21 #include "text-def.hh"
22 #include "note-column.hh"
24 Tuplet_spanner::Tuplet_spanner ()
27 bracket_visibility_b_ = true;
28 num_visibility_b_ = true;
30 tdef_p_.set_p(new Text_def);
31 tdef_p_->align_dir_ = CENTER;
32 tdef_p_->style_str_ = "italic";
36 Tuplet_spanner::do_brew_molecule_p () const
38 Molecule* mol_p = new Molecule;
40 if (column_arr_.size ()){
41 Real ncw = column_arr_.top ()->extent (X_AXIS).length ();
42 Molecule num (tdef_p_->get_molecule (paper (), CENTER));
44 if (beam_l_ && !bracket_visibility_b_)
46 Directional_spanner* ds = dynamic_cast<Directional_spanner*>(beam_l_);
47 num.translate (ds->center ());
48 num.translate_axis (ncw, X_AXIS);
51 if (bracket_visibility_b_)
53 Real dy = column_arr_.top ()->extent (Y_AXIS) [dir_]
54 - column_arr_[0]->extent (Y_AXIS) [dir_];
55 Real w = extent (X_AXIS).length () + ncw;
57 num.translate (Offset (w/2, dy/2));
58 mol_p->add_molecule (lookup_l ()->plet (dy, w, dir_));
61 if (num_visibility_b_)
62 mol_p->add_molecule (num);
68 Tuplet_spanner::do_add_processing ()
70 if (column_arr_.size ())
72 set_bounds (LEFT, column_arr_[0]);
73 set_bounds (RIGHT, column_arr_.top ());
78 Tuplet_spanner::do_post_processing ()
80 if (column_arr_.size())
81 translate_axis (column_arr_[0]->extent (Y_AXIS)[dir_], Y_AXIS);
83 if (!broken_into_l_arr_.size () && beam_l_
84 && spanned_drul_[LEFT]->column_l () == beam_l_->spanned_drul_[LEFT]->column_l ()
85 && spanned_drul_[RIGHT]->column_l () == beam_l_->spanned_drul_[RIGHT]->column_l ())
86 bracket_visibility_b_ = false;
88 if (column_arr_.size () == 1)
89 bracket_visibility_b_ = false;
93 Tuplet_spanner::do_substitute_dependency (Score_element* o, Score_element* n)
95 if (Note_column *onc = dynamic_cast <Note_column *> (o))
96 column_arr_.substitute (onc, dynamic_cast<Note_column*> (n));
97 else if (Beam *b = dynamic_cast<Beam *> (o))
100 beam_l_ = dynamic_cast<Beam*> (n);
105 Tuplet_spanner::set_default_dir ()
108 for (int i=0; i < column_arr_.size (); i ++)
110 if (column_arr_[i]->dir_ < 0)
119 Tuplet_spanner::set_beam (Beam *b)
126 Tuplet_spanner::add_column (Note_column*n)
128 column_arr_.push (n);