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));
39 Tuplet_spanner::do_brew_molecule () const
43 // Default behaviour: number always, bracket when no beam!
44 bool par_beam = to_boolean (get_elt_property ("parallel-beam"));
45 bool bracket_visibility = !par_beam;
46 bool number_visibility = true;
48 SCM bracket = get_elt_property ("tuplet-bracket-visibility");
49 if (gh_boolean_p (bracket))
51 bracket_visibility = gh_scm2bool (bracket);
53 else if (bracket == ly_symbol2scm ("if-no-beam"))
54 bracket_visibility = !par_beam;
56 SCM numb = get_elt_property ("tuplet-number-visibility");
57 if (gh_boolean_p (numb))
59 number_visibility = gh_scm2bool (numb);
61 else if (bracket == ly_symbol2scm ("if-no-beam"))
62 number_visibility = !par_beam;
64 if (gh_pair_p (get_elt_pointer ("columns")))
66 Link_array<Note_column> column_arr=
67 Pointer_group_interface__extract_elements (this, (Note_column*)0, "columns");
69 Real ncw = column_arr.top ()->extent(X_AXIS).length ();
70 Real w = spanner_length () + ncw;
73 Real staff_space = paper_l ()->get_var ("interline");
74 Direction dir = directional_element (this).get ();
75 Real dy = gh_scm2double (get_elt_property ("delta-y"));
76 SCM number = get_elt_property ("text");
77 if (gh_string_p (number) && number_visibility)
80 num (lookup_l ()->text ("italic",
81 ly_scm2string (number), paper_l ()));
82 num.align_to (X_AXIS, CENTER);
83 num.translate_axis (w/2, X_AXIS);
84 num.align_to (Y_AXIS, CENTER);
85 num.translate_axis (dir * staff_space, Y_AXIS);
87 num.translate_axis (dy/2, Y_AXIS);
89 mol.add_molecule (num);
92 Real thick = paper_l ()->get_var ("tuplet_thick");
93 if (bracket_visibility)
95 Real gap = paper_l () -> get_var ("tuplet_spanner_gap");
96 Real height = staff_space;
97 SCM at =gh_list(ly_symbol2scm ("tuplet"),
98 gh_double2scm (height),
102 gh_double2scm (thick),
107 mol.add_molecule (Molecule (b, at));
110 //mol.translate_axis (dir * staff_space, Y_AXIS);
116 Tuplet_spanner::do_add_processing ()
118 if (gh_pair_p (get_elt_pointer ("columns")))
120 Link_array<Note_column> column_arr=
121 Pointer_group_interface__extract_elements (this, (Note_column*)0, "columns");
123 set_bound (LEFT, column_arr[0]);
124 set_bound (RIGHT, column_arr.top ());
131 use first -> last note for slope, and then correct for disturbing
134 Tuplet_spanner::calc_position_and_height (Real *offset, Real * dy) const
136 Link_array<Note_column> column_arr=
137 Pointer_group_interface__extract_elements (this, (Note_column*)0, "columns");
140 Score_element * common = common_refpoint (get_elt_pointer ("columns"), Y_AXIS);
142 Direction d = directional_element (this).get ();
145 Use outer non-rest columns to determine slope
148 while (l <column_arr.size() && column_arr[l]->rest_b())
151 int r = column_arr.size ()- 1;
152 while (r >= l && column_arr[r]->rest_b())
157 *dy = column_arr[r]->extent (Y_AXIS) [d] + column_arr[r]->relative_coordinate (common, Y_AXIS)
158 - column_arr[l]->extent (Y_AXIS) [d] - column_arr[l]->relative_coordinate (common, Y_AXIS);
164 *offset = - d * infinity_f;
166 if (!column_arr.size ())
169 Real x0 = column_arr[0]->relative_coordinate (0, X_AXIS);
170 Real x1 = column_arr.top ()->relative_coordinate (0, X_AXIS);
172 Real factor = column_arr.size () > 1 ? 1/(x1 - x0) : 1.0;
174 for (int i = 0; i < column_arr.size (); i++)
176 Real notey = column_arr[i]->extent (Y_AXIS)[d] +
177 column_arr[i]->relative_coordinate (common, Y_AXIS)
179 Real x = column_arr[i]->relative_coordinate (0, X_AXIS) - x0;
180 Real tuplety = *dy * x * factor;
182 if (notey * d > (*offset + tuplety) * d)
183 *offset = notey - tuplety;
188 use first -> last note for slope,
191 Tuplet_spanner::calc_dy (Real * dy) const
193 Link_array<Note_column> column_arr=
194 Pointer_group_interface__extract_elements (this, (Note_column*)0, "columns");
197 Direction d = directional_element (this).get ();
198 *dy = column_arr.top ()->extent (Y_AXIS) [d]
199 - column_arr[0]->extent (Y_AXIS) [d];
203 Tuplet_spanner::after_line_breaking ()
205 Link_array<Note_column> column_arr=
206 Pointer_group_interface__extract_elements (this, (Note_column*)0, "columns");
208 if (!column_arr.size ())
210 set_elt_property ("transparent", SCM_BOOL_T);
211 set_extent_callback (0, X_AXIS);
212 set_extent_callback (0, Y_AXIS);
215 Direction d = directional_element (this).get ();
218 d = get_default_dir ();
219 directional_element (this).set (d);
224 calc_position_and_height (&offset,&dy);
226 set_elt_property ("delta-y", gh_double2scm (dy));
228 translate_axis (offset, Y_AXIS);
230 if (scm_ilength (get_elt_pointer ("beams")) == 1)
232 SCM bs = get_elt_pointer ("beams");
233 Score_element *b = unsmob_element (gh_car (bs));
234 Beam * beam_l = dynamic_cast<Beam*> (b);
236 && get_bound (LEFT)->column_l () == beam_l->get_bound (LEFT)->column_l ()
237 && get_bound (RIGHT)->column_l () == beam_l->get_bound (RIGHT)->column_l ())
238 set_elt_property ("parallel-beam", SCM_BOOL_T);
244 Tuplet_spanner::get_default_dir () const
247 SCM dir_sym =get_elt_property ("dir-forced");
248 if (isdir_b (dir_sym))
256 for (SCM s = get_elt_pointer ("columns"); gh_pair_p (s); s = gh_cdr (s))
258 Score_element * sc = unsmob_element (gh_car (s));
259 Note_column * nc = dynamic_cast<Note_column*> (sc);
271 Tuplet_spanner::add_beam (Beam *b)
274 Pointer_group_interface gi (this, "beams");
279 Tuplet_spanner::add_column (Note_column*n)
281 Pointer_group_interface gi (this, "columns");