lilypond-1.1.49
[lilypond.git] / lily / tuplet-spanner.cc
blob3f76d659e1654b024abd491394cb5679154ac0b0
1 /*
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>
7 */
9 #include "beam.hh"
10 #include "box.hh"
11 #include "debug.hh"
12 #include "lookup.hh"
13 #include "molecule.hh"
14 #include "p-col.hh"
15 #include "paper-def.hh"
16 #include "tuplet-spanner.hh"
17 #include "stem.hh"
18 #include "note-column.hh"
19 #include "dimensions.hh"
22 Tuplet_spanner::Tuplet_spanner ()
24 parallel_beam_b_ = false;
28 TODO. We should control the gap for lookup from here.
30 Molecule*
31 Tuplet_spanner::do_brew_molecule_p () const
33 Molecule* mol_p = new Molecule;
35 // Default behaviour: number always, bracket when no beam!
36 bool bracket_visibility = !parallel_beam_b_;
37 bool number_visibility = true;
38 SCM visibility_sym =get_elt_property (tuplet_visibility_scm_sym);
39 if (visibility_sym != SCM_BOOL_F)
41 /* Property values:
42 0 show nothing
43 1 show number
44 2 show (number and bracket)-if-no-beam
45 3 show number, and bracket-if-no-beam
46 4 show number, and bracket
48 int value = gh_scm2int (SCM_CDR(visibility_sym));
49 bracket_visibility = (value == 4 || (value > 1 && !parallel_beam_b_));
50 number_visibility = (value > 2 || value == 1 ||
51 (value == 2 && !parallel_beam_b_));
54 if (column_arr_.size ()){
55 Real ncw = column_arr_.top ()->extent (X_AXIS).length ();
56 Real w = extent (X_AXIS).length () + ncw;
57 Molecule num (lookup_l ()->text ("italic",
58 number_str_, paper_l ()));
59 num.align_to (X_AXIS, CENTER);
60 num.translate_axis (w/2, X_AXIS);
61 Real interline = paper_l ()->get_realvar (interline_scm_sym);
62 Real dy = column_arr_.top ()->extent (Y_AXIS) [dir_]
63 - column_arr_[0]->extent (Y_AXIS) [dir_];
64 num.align_to (Y_AXIS, CENTER);
65 num.translate_axis (dir_ * interline, Y_AXIS);
67 num.translate_axis (dy/2, Y_AXIS);
69 Real thick = paper_l ()->get_realvar (tuplet_thick_scm_sym);
70 if (bracket_visibility)
72 mol_p->add_molecule (lookup_l ()->tuplet_bracket (dy, w, thick, interline, dir_));
75 if (number_visibility)
77 mol_p->add_molecule (num);
79 mol_p->translate_axis (dir_ * interline, Y_AXIS);
81 return mol_p;
84 void
85 Tuplet_spanner::do_add_processing ()
87 if (column_arr_.size ())
89 set_bounds (LEFT, column_arr_[0]);
90 set_bounds (RIGHT, column_arr_.top ());
94 void
95 Tuplet_spanner::do_post_processing ()
97 if (column_arr_.size())
98 translate_axis (column_arr_[0]->extent (Y_AXIS)[dir_], Y_AXIS);
100 if (beam_l_arr_.size () == 1)
102 Beam * beam_l = beam_l_arr_[0];
103 if (!broken_b ()
104 && spanned_drul_[LEFT]->column_l () == beam_l->spanned_drul_[LEFT]->column_l ()
105 && spanned_drul_[RIGHT]->column_l () == beam_l->spanned_drul_[RIGHT]->column_l ())
106 parallel_beam_b_ = true;
109 // if (column_arr_.size () == 1)
110 // bracket_visibility_b_ = false;
113 void
114 Tuplet_spanner::do_substitute_element_pointer (Score_element* o, Score_element* n)
116 if (Note_column *onc = dynamic_cast <Note_column *> (o))
117 column_arr_.substitute (onc, dynamic_cast<Note_column*> (n));
118 else if (Beam * b = dynamic_cast<Beam* > (o))
120 beam_l_arr_.substitute (b, dynamic_cast<Beam*> (n));
124 Direction
125 Tuplet_spanner::get_default_dir () const
127 Direction d = UP;
128 SCM dir_sym =get_elt_property (dir_forced_scm_sym);
129 if (dir_sym != SCM_BOOL_F) {
130 d= (Direction) gh_scm2int (SCM_CDR(dir_sym));
131 if (d != CENTER)
132 return d;
135 for (int i=0; i < column_arr_.size (); i ++)
137 if (column_arr_[i]->dir () < 0)
139 d = DOWN;
140 break;
143 return d;
146 void
147 Tuplet_spanner::add_beam (Beam *b)
149 add_dependency (b);
150 beam_l_arr_.push (b);
153 void
154 Tuplet_spanner::add_column (Note_column*n)
156 column_arr_.push (n);
157 add_dependency (n);