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>
13 #include "molecule.hh"
14 #include "paper-column.hh"
15 #include "paper-def.hh"
16 #include "tuplet-spanner.hh"
18 #include "note-column.hh"
19 #include "dimensions.hh"
20 #include "group-interface.hh"
24 Tuplet_spanner::Tuplet_spanner ()
29 parallel_beam_b_ = false;
30 set_elt_property ("beams", SCM_EOL);
31 set_elt_property ("columns", SCM_EOL);
38 Tuplet_spanner::do_brew_molecule_p () const
40 Molecule* mol_p = new Molecule;
42 // Default behaviour: number always, bracket when no beam!
43 bool bracket_visibility = !parallel_beam_b_;
44 bool number_visibility = true;
45 SCM visibility_sym =get_elt_property ("tuplet-visibility");
46 if (visibility_sym != SCM_UNDEFINED)
55 2 show (number and bracket)-if-no-beam
56 3 show number, and bracket-if-no-beam
57 4 show number, and bracket
59 int value = gh_scm2int ((visibility_sym));
60 bracket_visibility = (value == 4 || (value > 1 && !parallel_beam_b_));
61 number_visibility = (value > 2 || value == 1 ||
62 (value == 2 && !parallel_beam_b_));
65 if (gh_pair_p (get_elt_property ("columns")))
67 Link_array<Note_column> column_arr=
68 Group_interface__extract_elements (this, (Note_column*)0, "columns");
70 Real ncw = column_arr.top ()->extent(X_AXIS).length ();
71 Real w = spanner_length () + ncw;
72 Molecule num (lookup_l ()->text ("italic",
73 number_str_, paper_l ()));
74 num.align_to (X_AXIS, CENTER);
75 num.translate_axis (w/2, X_AXIS);
76 Real interline = paper_l ()->get_var ("interline");
77 Real dy = column_arr.top ()->extent (Y_AXIS) [get_direction ()]
78 - column_arr[0]->extent (Y_AXIS) [get_direction ()];
79 num.align_to (Y_AXIS, CENTER);
80 num.translate_axis (get_direction () * interline, Y_AXIS);
82 num.translate_axis (dy/2, Y_AXIS);
84 Real thick = paper_l ()->get_var ("tuplet_thick");
85 if (bracket_visibility)
87 Real gap = paper_l () -> get_var ("tuplet_spanner_gap");
89 mol_p->add_molecule (lookup_l ()->tuplet_bracket (dy, w, thick, gap, interline, get_direction ()));
92 if (number_visibility)
94 mol_p->add_molecule (num);
96 mol_p->translate_axis (get_direction () * interline, Y_AXIS);
102 Tuplet_spanner::do_add_processing ()
104 if (gh_pair_p (get_elt_property ("columns")))
106 Link_array<Note_column> column_arr=
107 Group_interface__extract_elements (this, (Note_column*)0, "columns");
109 set_bounds (LEFT, column_arr[0]);
110 set_bounds (RIGHT, column_arr.top ());
115 Tuplet_spanner::do_post_processing ()
117 Link_array<Note_column> column_arr=
118 Group_interface__extract_elements (this, (Note_column*)0, "columns");
121 if (column_arr.size())
122 translate_axis (column_arr[0]->extent (Y_AXIS)[get_direction ()], Y_AXIS);
125 if (scm_ilength (get_elt_property ("beams")) == 1)
127 SCM bs = get_elt_property ("beams");
128 Score_element *b = unsmob_element (gh_car (bs));
129 Beam * beam_l = dynamic_cast<Beam*> (b);
131 && spanned_drul_[LEFT]->column_l () == beam_l->spanned_drul_[LEFT]->column_l ()
132 && spanned_drul_[RIGHT]->column_l () == beam_l->spanned_drul_[RIGHT]->column_l ())
133 parallel_beam_b_ = true;
139 Tuplet_spanner::get_default_dir () const
142 SCM dir_sym =get_elt_property ("dir-forced");
143 if (dir_sym != SCM_UNDEFINED) {
144 d= (Direction) gh_scm2int (dir_sym);
149 for (SCM s = get_elt_property ("columns"); gh_pair_p (s); s = gh_cdr (s))
151 Score_element * sc = unsmob_element (gh_car (s));
152 Note_column * nc = dynamic_cast<Note_column*> (sc);
164 Tuplet_spanner::add_beam (Beam *b)
167 Group_interface gi (this, "beams");
172 Tuplet_spanner::add_column (Note_column*n)
174 Group_interface gi (this, "columns");