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 (SCM s)
28 set_elt_pointer ("beams", SCM_EOL);
29 set_elt_pointer ("columns", SCM_EOL);
32 set_elt_property ("delta-y", gh_int2scm (0));
38 MAKE_SCHEME_SCORE_ELEMENT_CALLBACKS(Tuplet_spanner)
40 Tuplet_spanner::do_brew_molecule () const
44 // Default behaviour: number always, bracket when no beam!
45 bool par_beam = to_boolean (get_elt_property ("parallel-beam"));
46 bool bracket_visibility = !par_beam;
47 bool number_visibility = true;
49 SCM bracket = get_elt_property ("tuplet-bracket-visibility");
50 if (gh_boolean_p (bracket))
52 bracket_visibility = gh_scm2bool (bracket);
54 else if (bracket == ly_symbol2scm ("if-no-beam"))
55 bracket_visibility = !par_beam;
57 SCM numb = get_elt_property ("tuplet-number-visibility");
58 if (gh_boolean_p (numb))
60 number_visibility = gh_scm2bool (numb);
62 else if (bracket == ly_symbol2scm ("if-no-beam"))
63 number_visibility = !par_beam;
65 if (gh_pair_p (get_elt_pointer ("columns")))
67 Link_array<Note_column> column_arr=
68 Pointer_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;
74 Real staff_space = paper_l ()->get_var ("interline");
75 Direction dir = directional_element (this).get ();
76 Real dy = gh_scm2double (get_elt_property ("delta-y"));
77 SCM number = get_elt_property ("text");
78 if (gh_string_p (number) && number_visibility)
81 num (lookup_l ()->text ("italic",
82 ly_scm2string (number), paper_l ()));
83 num.align_to (X_AXIS, CENTER);
84 num.translate_axis (w/2, X_AXIS);
85 num.align_to (Y_AXIS, CENTER);
86 num.translate_axis (dir * staff_space, Y_AXIS);
88 num.translate_axis (dy/2, Y_AXIS);
90 mol.add_molecule (num);
93 Real thick = paper_l ()->get_var ("tuplet_thick");
94 if (bracket_visibility)
96 Real gap = paper_l () -> get_var ("tuplet_spanner_gap");
97 Real height = staff_space;
98 SCM at =gh_list(ly_symbol2scm ("tuplet"),
99 gh_double2scm (height),
103 gh_double2scm (thick),
108 mol.add_molecule (Molecule (b, at));
111 //mol.translate_axis (dir * staff_space, Y_AXIS);
117 Tuplet_spanner::do_add_processing ()
119 if (gh_pair_p (get_elt_pointer ("columns")))
121 Link_array<Note_column> column_arr=
122 Pointer_group_interface__extract_elements (this, (Note_column*)0, "columns");
124 set_bound (LEFT, column_arr[0]);
125 set_bound (RIGHT, column_arr.top ());
132 use first -> last note for slope, and then correct for disturbing
135 Tuplet_spanner::calc_position_and_height (Real *offset, Real * dy) const
137 Link_array<Note_column> column_arr=
138 Pointer_group_interface__extract_elements (this, (Note_column*)0, "columns");
141 Score_element * common = common_refpoint (get_elt_pointer ("columns"), Y_AXIS);
143 Direction d = directional_element (this).get ();
146 Use outer non-rest columns to determine slope
149 while (l <column_arr.size() && column_arr[l]->rest_b())
152 int r = column_arr.size ()- 1;
153 while (r >= l && column_arr[r]->rest_b())
158 *dy = column_arr[r]->extent (Y_AXIS) [d] + column_arr[r]->relative_coordinate (common, Y_AXIS)
159 - column_arr[l]->extent (Y_AXIS) [d] - column_arr[l]->relative_coordinate (common, Y_AXIS);
165 *offset = - d * infinity_f;
167 if (!column_arr.size ())
170 Real x0 = column_arr[0]->relative_coordinate (0, X_AXIS);
171 Real x1 = column_arr.top ()->relative_coordinate (0, X_AXIS);
173 Real factor = column_arr.size () > 1 ? 1/(x1 - x0) : 1.0;
175 for (int i = 0; i < column_arr.size (); i++)
177 Real notey = column_arr[i]->extent (Y_AXIS)[d] +
178 column_arr[i]->relative_coordinate (common, Y_AXIS)
180 Real x = column_arr[i]->relative_coordinate (0, X_AXIS) - x0;
181 Real tuplety = *dy * x * factor;
183 if (notey * d > (*offset + tuplety) * d)
184 *offset = notey - tuplety;
189 use first -> last note for slope,
192 Tuplet_spanner::calc_dy (Real * dy) const
194 Link_array<Note_column> column_arr=
195 Pointer_group_interface__extract_elements (this, (Note_column*)0, "columns");
198 Direction d = directional_element (this).get ();
199 *dy = column_arr.top ()->extent (Y_AXIS) [d]
200 - column_arr[0]->extent (Y_AXIS) [d];
204 Tuplet_spanner::after_line_breaking ()
206 Link_array<Note_column> column_arr=
207 Pointer_group_interface__extract_elements (this, (Note_column*)0, "columns");
209 if (!column_arr.size ())
214 Direction d = directional_element (this).get ();
217 d = get_default_dir ();
218 directional_element (this).set (d);
223 calc_position_and_height (&offset,&dy);
225 set_elt_property ("delta-y", gh_double2scm (dy));
227 translate_axis (offset, Y_AXIS);
229 if (scm_ilength (get_elt_pointer ("beams")) == 1)
231 SCM bs = get_elt_pointer ("beams");
232 Score_element *b = unsmob_element (gh_car (bs));
233 Beam * beam_l = dynamic_cast<Beam*> (b);
235 && get_bound (LEFT)->column_l () == beam_l->get_bound (LEFT)->column_l ()
236 && get_bound (RIGHT)->column_l () == beam_l->get_bound (RIGHT)->column_l ())
237 set_elt_property ("parallel-beam", SCM_BOOL_T);
243 Tuplet_spanner::get_default_dir () const
246 SCM dir_sym =get_elt_property ("dir-forced");
247 if (isdir_b (dir_sym))
255 for (SCM s = get_elt_pointer ("columns"); gh_pair_p (s); s = gh_cdr (s))
257 Score_element * sc = unsmob_element (gh_car (s));
258 Note_column * nc = dynamic_cast<Note_column*> (sc);
270 Tuplet_spanner::add_beam (Beam *b)
273 Pointer_group_interface gi (this, "beams");
278 Tuplet_spanner::add_column (Note_column*n)
280 Pointer_group_interface gi (this, "columns");