2 plet-spanner.cc -- implement Tuplet_spanner
4 source file of the GNU LilyPond music typesetter
6 (c) 1997--2000 Jan Nieuwenhuizen <janneke@gnu.org>
14 #include "molecule.hh"
15 #include "paper-column.hh"
16 #include "paper-def.hh"
17 #include "tuplet-spanner.hh"
19 #include "note-column.hh"
20 #include "dimensions.hh"
21 #include "group-interface.hh"
22 #include "directional-element-interface.hh"
25 Tuplet_spanner::Tuplet_spanner ()
27 set_elt_property ("beams", SCM_EOL);
28 set_elt_property ("columns", SCM_EOL);
35 Tuplet_spanner::do_brew_molecule_p () const
37 Molecule* mol_p = new Molecule;
39 // Default behaviour: number always, bracket when no beam!
40 bool par_beam = to_boolean (get_elt_property ("parallel-beam"));
41 bool bracket_visibility = !par_beam;
42 bool number_visibility = true;
44 SCM bracket = get_elt_property ("tuplet-bracket-visibility");
45 if (gh_boolean_p (bracket))
47 bracket_visibility = gh_scm2bool (bracket);
49 else if (bracket == ly_symbol2scm ("if-no-beam"))
50 bracket_visibility = !par_beam;
52 SCM numb = get_elt_property ("tuplet-number-visibility");
53 if (gh_boolean_p (numb))
55 number_visibility = gh_scm2bool (numb);
57 else if (bracket == ly_symbol2scm ("if-no-beam"))
58 number_visibility = !par_beam;
60 if (gh_pair_p (get_elt_property ("columns")))
62 Link_array<Note_column> column_arr=
63 Group_interface__extract_elements (this, (Note_column*)0, "columns");
65 Real ncw = column_arr.top ()->extent(X_AXIS).length ();
66 Real w = spanner_length () + ncw;
69 Real staff_space = paper_l ()->get_var ("interline");
70 Direction dir = directional_element (this).get ();
71 Real dy = gh_scm2double (get_elt_property ("delta-y"));
72 SCM number = get_elt_property ("text");
73 if (gh_string_p (number) && number_visibility)
76 num (lookup_l ()->text ("italic",
77 ly_scm2string (number), paper_l ()));
78 num.align_to (X_AXIS, CENTER);
79 num.translate_axis (w/2, X_AXIS);
80 num.align_to (Y_AXIS, CENTER);
81 num.translate_axis (dir * staff_space, Y_AXIS);
83 num.translate_axis (dy/2, Y_AXIS);
85 mol_p->add_molecule (num);
88 Real thick = paper_l ()->get_var ("tuplet_thick");
89 if (bracket_visibility)
91 Real gap = paper_l () -> get_var ("tuplet_spanner_gap");
92 Real height = staff_space;
93 SCM at =gh_list(ly_symbol2scm ("tuplet"),
94 gh_double2scm (height),
98 gh_double2scm (thick),
102 mol_p->add_atom (at);
105 mol_p->translate_axis (dir * staff_space, Y_AXIS);
111 Tuplet_spanner::do_add_processing ()
113 if (gh_pair_p (get_elt_property ("columns")))
115 Link_array<Note_column> column_arr=
116 Group_interface__extract_elements (this, (Note_column*)0, "columns");
118 set_bounds (LEFT, column_arr[0]);
119 set_bounds (RIGHT, column_arr.top ());
126 use first -> last note for slope, and then correct for disturbing
129 Tuplet_spanner::calc_position_and_height (Real *offset, Real * dy) const
131 Link_array<Note_column> column_arr=
132 Group_interface__extract_elements (this, (Note_column*)0, "columns");
135 Direction d = directional_element (this).get ();
138 Use outer non-rest columns to determine slope
141 while (l <column_arr.size() && column_arr[l]->rest_b())
144 int r = column_arr.size ()- 1;
145 while (r >= l && column_arr[r]->rest_b())
150 *dy = column_arr[r]->extent (Y_AXIS) [d]
151 - column_arr[l]->extent (Y_AXIS) [d];
157 *offset = - d * infinity_f;
159 Real x0 = column_arr[0]->hpos_f ();
160 Real x1 = column_arr.top ()->hpos_f ();
162 Real factor = column_arr.size () > 1 ? 1/(x1 - x0) : 1.0;
164 for (int i = 0; i < column_arr.size (); i++)
166 Real notey = column_arr[i]->extent (Y_AXIS)[d];
167 Real x = column_arr[i]->hpos_f () - x0;
168 Real tuplety = *dy * x * factor;
170 if (notey * d > (*offset + tuplety) * d)
171 *offset = notey - tuplety;
176 use first -> last note for slope,
179 Tuplet_spanner::calc_dy (Real * dy) const
181 Link_array<Note_column> column_arr=
182 Group_interface__extract_elements (this, (Note_column*)0, "columns");
185 Direction d = directional_element (this).get ();
186 *dy = column_arr.top ()->extent (Y_AXIS) [d]
187 - column_arr[0]->extent (Y_AXIS) [d];
191 Tuplet_spanner::do_post_processing ()
193 Link_array<Note_column> column_arr=
194 Group_interface__extract_elements (this, (Note_column*)0, "columns");
196 if (!column_arr.size ())
198 set_elt_property ("transparent", SCM_BOOL_T);
203 Direction d = directional_element (this).get ();
206 d = get_default_dir ();
207 directional_element (this).set (d);
212 calc_position_and_height (&offset,&dy);
213 // calc_position (&offset, dy);
215 set_elt_property ("delta-y", gh_double2scm (dy));
217 translate_axis (offset, Y_AXIS);
219 if (scm_ilength (get_elt_property ("beams")) == 1)
221 SCM bs = get_elt_property ("beams");
222 Score_element *b = unsmob_element (gh_car (bs));
223 Beam * beam_l = dynamic_cast<Beam*> (b);
225 && spanned_drul_[LEFT]->column_l () == beam_l->spanned_drul_[LEFT]->column_l ()
226 && spanned_drul_[RIGHT]->column_l () == beam_l->spanned_drul_[RIGHT]->column_l ())
227 set_elt_property ("parallel-beam", SCM_BOOL_T);
233 Tuplet_spanner::get_default_dir () const
236 SCM dir_sym =get_elt_property ("dir-forced");
237 if (isdir_b (dir_sym))
245 for (SCM s = get_elt_property ("columns"); gh_pair_p (s); s = gh_cdr (s))
247 Score_element * sc = unsmob_element (gh_car (s));
248 Note_column * nc = dynamic_cast<Note_column*> (sc);
260 Tuplet_spanner::add_beam (Beam *b)
263 Group_interface gi (this, "beams");
268 Tuplet_spanner::add_column (Note_column*n)
270 Group_interface gi (this, "columns");