2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 1998--2010 Jan Nieuwenhuizen <janneke@gnu.org>
6 LilyPond is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 LilyPond is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
20 #include "multi-measure-rest.hh"
22 #include "font-interface.hh"
25 #include "output-def.hh"
26 #include "paper-column.hh" // urg
27 #include "percent-repeat-item.hh"
29 #include "separation-item.hh"
31 #include "staff-symbol-referencer.hh"
33 #include "text-interface.hh"
37 Multi_measure_rest::bar_width (Spanner *me)
39 SCM spacing_pair = me->get_property ("spacing-pair");
44 Item *col = me->get_bound (d)->get_column ();
46 = (scm_is_pair (spacing_pair)
47 ? index_get_cell (spacing_pair, d)
48 : ly_symbol2scm ("staff-bar"));
49 Interval coldim = Paper_column::break_align_width (col, align_sym);
53 while (flip (&d) != LEFT);
58 MAKE_SCHEME_CALLBACK (Multi_measure_rest, percent, 1);
60 Multi_measure_rest::percent (SCM smob)
62 Grob *me = unsmob_grob (smob);
63 Spanner *sp = dynamic_cast<Spanner *> (me);
65 Stencil r = Percent_repeat_item_interface::x_percent (me, 1);
69 Grob *common_x = sp->get_bound (LEFT)->common_refpoint (sp->get_bound (RIGHT),
71 Interval sp_iv = bar_width (sp);
74 Real rx = sp->get_bound (LEFT)->relative_coordinate (common_x, X_AXIS);
76 we gotta stay clear of sp_iv, so move a bit to the right if
79 x_off += max (sp_iv[LEFT] - rx, 0.0);
84 x_off += sp_iv.length () / 2;
86 r.translate_axis (x_off, X_AXIS);
88 return r.smobbed_copy ();
91 MAKE_SCHEME_CALLBACK (Multi_measure_rest, print, 1);
93 Multi_measure_rest::print (SCM smob)
95 Grob *me = unsmob_grob (smob);
96 Spanner *sp = dynamic_cast<Spanner *> (me);
98 Interval sp_iv = bar_width (sp);
99 Real space = sp_iv.length ();
101 Real rx = sp->get_bound (LEFT)->relative_coordinate (0, X_AXIS);
103 we gotta stay clear of sp_iv, so move a bit to the right if
106 Real x_off = max (sp_iv[LEFT] - rx, 0.0);
109 mol.add_stencil (symbol_stencil (me, space));
112 SCM m (me->get_property ("measure-count"));
113 if (scm_is_number (m))
114 measures = scm_to_int (m);
116 mol.translate_axis (x_off, X_AXIS);
117 return mol.smobbed_copy ();
121 Multi_measure_rest::symbol_stencil (Grob *me, Real space)
124 SCM m (me->get_property ("measure-count"));
125 if (scm_is_number (m))
126 measures = scm_to_int (m);
130 SCM limit = me->get_property ("expand-limit");
131 if (measures > scm_to_int (limit))
134 Stencil s = big_rest (me, (1.0 - 2 * padding) * space);
135 s.translate_axis (padding * space, X_AXIS);
139 Real staff_space = Staff_symbol_referencer::staff_space (me);
141 Font_metric *musfont = Font_interface::get_default_font (me);
143 SCM sml = me->get_property ("use-breve-rest");
146 if (to_boolean (sml))
148 Stencil s = musfont->find_by_name (Rest::glyph_name (me, -1, "", false));
150 s.translate_axis ((space - s.extent (X_AXIS).length ()) / 2, X_AXIS);
156 Stencil s = musfont->find_by_name (Rest::glyph_name (me, 0, "", true));
161 if (Staff_symbol_referencer::get_position (me) == 0.0)
162 s.translate_axis (staff_space, Y_AXIS);
164 s.translate_axis ((space - s.extent (X_AXIS).length ()) / 2, X_AXIS);
170 return church_rest (me, musfont, measures, space);
174 WIDTH can also be 0 to determine the minimum size of the object.
177 Multi_measure_rest::big_rest (Grob *me, Real width)
179 Real thick_thick = robust_scm2double (me->get_property ("thick-thickness"), 1.0);
180 Real hair_thick = robust_scm2double (me->get_property ("hair-thickness"), .1);
182 Real ss = Staff_symbol_referencer::staff_space (me);
183 Real slt = me->layout ()->get_dimension (ly_symbol2scm ("line-thickness"));
184 Real y = slt * thick_thick / 2 * ss;
185 Real ythick = hair_thick * slt * ss;
186 Box b (Interval (0.0, max (0.0, (width - 2 * ythick))), Interval (-y, y));
188 Real blot = width ? (.8 * min (y, ythick)) : 0.0;
190 Stencil m = Lookup::round_filled_box (b, blot);
191 Stencil yb = Lookup::round_filled_box (Box (Interval (-0.5, 0.5) * ythick, Interval (-ss, ss)), blot);
193 m.add_at_edge (X_AXIS, RIGHT, yb, 0);
194 m.add_at_edge (X_AXIS, LEFT, yb, 0);
196 m.align_to (X_AXIS, LEFT);
205 Multi_measure_rest::church_rest (Grob *me, Font_metric *musfont, int measures,
210 /* See Wanske pp. 125 */
213 Real symbols_width = 0.0;
215 bool use_breve = to_boolean (me->get_property ("use-breve-rest"));
233 Stencil r (musfont->find_by_name ("rests." + to_string (k)));
234 symbols_width += r.extent (X_AXIS).length ();
235 mols = scm_cons (r.smobbed_copy (), mols);
256 Stencil r (musfont->find_by_name ("rests." + to_string (k)));
259 Real staff_space = Staff_symbol_referencer::staff_space (me);
260 r.translate_axis (staff_space, Y_AXIS);
262 symbols_width += r.extent (X_AXIS).length ();
263 mols = scm_cons (r.smobbed_copy (), mols);
268 /* Make outer padding this much bigger. */
269 Real outer_padding_factor = 1.5;
270 Real inner_padding = (space - symbols_width)
271 / (2 * outer_padding_factor + (count - 1));
272 if (inner_padding < 0)
276 for (SCM s = mols; scm_is_pair (s); s = scm_cdr (s))
277 mol.add_at_edge (X_AXIS, LEFT, *unsmob_stencil (scm_car (s)),
279 mol.align_to (X_AXIS, LEFT);
280 mol.translate_axis (outer_padding_factor * inner_padding, X_AXIS);
286 Multi_measure_rest::add_column (Grob *me, Item *c)
288 add_bound_item (dynamic_cast<Spanner *> (me), c);
292 Multi_measure_rest::calculate_spacing_rods (Grob *me, Real length)
294 Spanner *sp = dynamic_cast<Spanner *> (me);
295 if (! (sp->get_bound (LEFT) && sp->get_bound (RIGHT)))
297 programming_error ("Multi_measure_rest::get_rods (): I am not spanned!");
301 Item *li = sp->get_bound (LEFT)->get_column ();
302 Item *ri = sp->get_bound (RIGHT)->get_column ();
303 Item *lb = li->find_prebroken_piece (RIGHT);
304 Item *rb = ri->find_prebroken_piece (LEFT);
306 Item *combinations[4][2] = {{li, ri},
311 for (int i = 0; i < 4; i++)
313 Item *li = combinations[i][0];
314 Item *ri = combinations[i][1];
320 rod.item_drul_[LEFT] = li;
321 rod.item_drul_[RIGHT] = ri;
323 rod.distance_ = Paper_column::minimum_distance (li, ri)
325 + 2 * robust_scm2double (me->get_property ("bound-padding"), 1.0);
327 Real minlen = robust_scm2double (me->get_property ("minimum-length"), 0);
328 rod.distance_ = max (rod.distance_, minlen);
333 MAKE_SCHEME_CALLBACK (Multi_measure_rest, set_spacing_rods, 1);
335 Multi_measure_rest::set_spacing_rods (SCM smob)
337 Grob *me = unsmob_grob (smob);
338 Real sym_width = symbol_stencil (me, 0.0).extent (X_AXIS).length ();
339 calculate_spacing_rods (me, sym_width);
341 return SCM_UNSPECIFIED;
344 MAKE_SCHEME_CALLBACK (Multi_measure_rest, set_text_rods, 1);
346 Multi_measure_rest::set_text_rods (SCM smob)
348 Grob *me = unsmob_grob (smob);
349 Stencil *stil = me->get_stencil ();
352 Real len = (stil && !stil->extent (X_AXIS).is_empty ())
353 ? stil->extent (X_AXIS).length ()
355 calculate_spacing_rods (me, len);
357 return SCM_UNSPECIFIED;
360 ADD_INTERFACE (Multi_measure_rest,
361 "A rest that spans a whole number of measures.",