2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 1996--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
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/>.
22 #include "align-interface.hh"
23 #include "all-font-metrics.hh"
24 #include "axis-group-interface.hh"
25 #include "break-align-interface.hh"
26 #include "column-description.hh"
27 #include "grob-array.hh"
28 #include "hara-kiri-group-spanner.hh"
29 #include "international.hh"
32 #include "output-def.hh"
33 #include "page-layout-problem.hh"
34 #include "paper-column.hh"
35 #include "paper-score.hh"
36 #include "paper-system.hh"
37 #include "pointer-group-interface.hh"
38 #include "skyline-pair.hh"
39 #include "staff-symbol-referencer.hh"
40 #include "text-interface.hh"
42 #include "unpure-pure-container.hh"
44 System::System (System const &src)
50 checked_footnotes_ = false;
54 System::System (SCM s)
59 checked_footnotes_ = false;
64 System::init_elements ()
66 SCM scm_arr = Grob_array::make_array ();
67 all_elements_ = unsmob_grob_array (scm_arr);
68 all_elements_->set_ordered (false);
69 set_object ("all-elements", scm_arr);
73 System::clone () const
75 return new System (*this);
79 System::element_count () const
81 return all_elements_->size ();
85 System::spanner_count () const
88 for (vsize i = all_elements_->size (); i--;)
89 if (dynamic_cast<Spanner *> (all_elements_->grob (i)))
95 System::typeset_grob (Grob *elem)
98 programming_error ("adding element twice");
101 elem->layout_ = pscore_->layout ();
102 all_elements_->add (elem);
108 System::derived_mark () const
110 if (!all_elements_->empty ())
112 Grob **ptr = &all_elements_->array_reference ()[0];
113 Grob **end = ptr + all_elements_->size ();
116 scm_gc_mark ((*ptr)->self_scm ());
122 scm_gc_mark (pscore_->self_scm ());
124 Spanner::derived_mark ();
128 fixup_refpoints (vector<Grob *> const &grobs)
130 for (vsize i = grobs.size (); i--;)
131 grobs[i]->fixup_refpoint ();
135 System::do_break_substitution_and_fixup_refpoints ()
137 for (vsize i = 0; i < all_elements_->size (); i++)
139 Grob *g = all_elements_->grob (i);
140 if (g->internal_has_interface (ly_symbol2scm ("only-prebreak-interface")))
143 Kill no longer needed grobs.
145 Item *it = dynamic_cast<Item *> (g);
146 if (it && Item::is_non_musical (it))
148 it->find_prebroken_piece (LEFT)->suicide ();
149 it->find_prebroken_piece (RIGHT)->suicide ();
153 else if (g->is_live ())
154 g->do_break_processing ();
158 fixups must be done in broken line_of_scores, because new elements
159 are put over there. */
161 for (vsize i = 0; i < broken_intos_.size (); i++)
163 Grob *se = broken_intos_[i];
165 extract_grob_set (se, "all-elements", all_elts);
166 for (vsize j = 0; j < all_elts.size (); j++)
168 Grob *g = all_elts[j];
169 g->fixup_refpoint ();
172 count += all_elts.size ();
176 needed for doing items.
178 fixup_refpoints (all_elements_->array ());
180 for (vsize i = 0; i < all_elements_->size (); i++)
181 all_elements_->grob (i)->handle_broken_dependencies ();
183 handle_broken_dependencies ();
185 /* Because the this->get_property (all-elements) contains items in 3
186 versions, handle_broken_dependencies () will leave duplicated
187 items in all-elements. Strictly speaking this is harmless, but
188 it leads to duplicated symbols in the output. uniq makes sure
189 that no duplicates are in the list. */
190 for (vsize i = 0; i < broken_intos_.size (); i++)
192 System *child = dynamic_cast<System *> (broken_intos_[i]);
193 child->all_elements_->remove_duplicates ();
194 for (vsize j = 0; j < child->all_elements_->size (); j++)
196 Grob *g = child->all_elements_->grob (j);
198 (void) g->get_property ("after-line-breaking");
202 debug_output (_f ("Element count %d", count + element_count ()) + "\n");
206 System::get_broken_system_grobs ()
209 for (vsize i = 0; i < broken_intos_.size (); i++)
210 ret = scm_cons (broken_intos_[i]->self_scm (), ret);
211 return scm_reverse (ret);
215 System::get_paper_systems ()
217 SCM lines = scm_c_make_vector (broken_intos_.size (), SCM_EOL);
218 for (vsize i = 0; i < broken_intos_.size (); i++)
220 debug_output ("[", false);
222 System *system = dynamic_cast<System *> (broken_intos_[i]);
224 scm_vector_set_x (lines, scm_from_int (i),
225 system->get_paper_system ());
227 debug_output (to_string (i) + "]", false);
233 System::populate_footnote_grob_vector ()
235 extract_grob_set (this, "all-elements", all_elts);
236 for (vsize i = 0; i < all_elts.size (); i++)
237 if (all_elts[i]->internal_has_interface (ly_symbol2scm ("footnote-interface")))
238 footnote_grobs_.push_back (all_elts[i]);
240 sort (footnote_grobs_.begin (), footnote_grobs_.end (), Grob::less);
241 checked_footnotes_ = true;
245 System::get_footnote_grobs_in_range (vector<Grob *> &out, vsize start, vsize end)
247 if (!checked_footnotes_)
248 populate_footnote_grob_vector ();
250 for (vsize i = 0; i < footnote_grobs_.size (); i++)
252 int pos = footnote_grobs_[i]->spanned_rank_interval ()[LEFT];
253 if (Spanner *s = dynamic_cast<Spanner *>(footnote_grobs_[i]))
255 Direction spanner_placement = robust_scm2dir (s->get_property ("spanner-placement"), LEFT);
256 if (spanner_placement == CENTER)
257 spanner_placement = LEFT;
259 pos = s->spanned_rank_interval ()[spanner_placement];
262 if (Item *item = dynamic_cast<Item *>(footnote_grobs_[i]))
264 if (!Item::break_visible (item))
266 // safeguard to bring down the column rank so that end of line footnotes show up on the correct line
267 if (pos == int (start) && item->break_status_dir () != RIGHT)
269 if (pos == int (end) && item->break_status_dir () != LEFT)
271 if (pos != int (end) && pos != int (start) && item->break_status_dir () != CENTER)
275 if (pos < int (start))
279 if (!footnote_grobs_[i]->is_live ())
282 out.push_back (footnote_grobs_[i]);
287 System::get_footnote_heights_in_range (vsize start, vsize end)
289 return internal_get_note_heights_in_range (start, end, true);
293 System::get_in_note_heights_in_range (vsize start, vsize end)
295 return internal_get_note_heights_in_range (start, end, false);
299 System::internal_get_note_heights_in_range (vsize start, vsize end, bool foot)
301 vector<Grob *> footnote_grobs;
302 get_footnote_grobs_in_range (footnote_grobs, start, end);
305 for (vsize i = footnote_grobs.size (); i--;)
307 ? !to_boolean (footnote_grobs[i]->get_property ("footnote"))
308 : to_boolean (footnote_grobs[i]->get_property ("footnote")))
309 footnote_grobs.erase (footnote_grobs.begin () + i);
311 for (vsize i = 0; i < footnote_grobs.size (); i++)
313 SCM footnote_markup = footnote_grobs[i]->get_property ("footnote-text");
315 if (!Text_interface::is_markup (footnote_markup))
318 SCM props = scm_call_1 (ly_lily_module_constant ("layout-extract-page-properties"),
319 pscore_->layout ()->self_scm ());
321 SCM footnote_stl = Text_interface::interpret_markup (pscore_->layout ()->self_scm (),
322 props, footnote_markup);
324 Stencil *footnote_stencil = unsmob_stencil (footnote_stl);
325 out.push_back (footnote_stencil->extent (Y_AXIS).length ());
332 System::num_footnotes ()
334 return footnote_grobs_.size ();
338 System::footnote_grobs ()
340 return &footnote_grobs_;
344 System::break_into_pieces (vector<Column_x_positions> const &breaking)
346 for (vsize i = 0; i < breaking.size (); i++)
348 System *system = dynamic_cast<System *> (clone ());
349 system->rank_ = broken_intos_.size ();
351 vector<Grob *> c (breaking[i].cols_);
352 pscore_->typeset_system (system);
354 int st = Paper_column::get_rank (c[0]);
355 int end = Paper_column::get_rank (c.back ());
356 Interval iv (pure_height (this, st, end));
357 system->set_property ("pure-Y-extent", ly_interval2scm (iv));
359 get_footnote_grobs_in_range (system->footnote_grobs_, st, end);
361 system->set_bound (LEFT, c[0]);
362 system->set_bound (RIGHT, c.back ());
363 SCM system_labels = SCM_EOL;
364 for (vsize j = 0; j < c.size (); j++)
366 c[j]->translate_axis (breaking[i].config_[j], X_AXIS);
367 dynamic_cast<Paper_column *> (c[j])->set_system (system);
368 /* collect the column labels */
369 collect_labels (c[j], &system_labels);
372 Collect labels from any loose columns too: theses will be set on
373 an empty bar line or a column which is otherwise unused mid-line
375 vector<Grob *> loose (breaking[i].loose_cols_);
376 for (vsize j = 0; j < loose.size (); j++)
377 collect_labels (loose[j], &system_labels);
379 system->set_property ("labels", system_labels);
381 set_loose_columns (system, &breaking[i]);
382 broken_intos_.push_back (system);
387 System::collect_labels (Grob const *col, SCM *labels)
389 SCM col_labels = col->get_property ("labels");
390 if (scm_is_pair (col_labels))
391 *labels = scm_append (scm_list_2 (col_labels, *labels));
395 System::add_column (Paper_column *p)
398 Grob_array *ga = unsmob_grob_array (me->get_object ("columns"));
401 SCM scm_ga = Grob_array::make_array ();
402 me->set_object ("columns", scm_ga);
403 ga = unsmob_grob_array (scm_ga);
406 p->set_rank (ga->size ());
409 Axis_group_interface::add_element (this, p);
413 System::pre_processing ()
415 for (vsize i = 0; i < all_elements_->size (); i++)
416 all_elements_->grob (i)->discretionary_processing ();
418 debug_output (_f ("Grob count %d", element_count ()));
421 order is significant: broken grobs are added to the end of the
422 array, and should be processed before the original is potentially
425 for (vsize i = all_elements_->size (); i--;)
426 all_elements_->grob (i)->handle_prebroken_dependencies ();
428 fixup_refpoints (all_elements_->array ());
430 for (vsize i = 0; i < all_elements_->size (); i++)
432 Grob *g = all_elements_->grob (i);
433 (void) g->get_property ("before-line-breaking");
436 for (vsize i = 0; i < all_elements_->size (); i++)
438 Grob *e = all_elements_->grob (i);
439 (void) e->get_property ("springs-and-rods");
444 System::post_processing ()
446 Interval iv (extent (this, Y_AXIS));
448 programming_error ("system with empty extent");
450 translate_axis (-iv[MAX], Y_AXIS);
452 /* Generate all stencils to trigger font loads.
453 This might seem inefficient, but Stencils are cached per grob
456 vector<Grob *> all_elts_sorted (all_elements_->array ());
457 vector_sort (all_elts_sorted, std::less<Grob *> ());
458 uniq (all_elts_sorted);
459 this->get_stencil ();
460 for (vsize i = all_elts_sorted.size (); i--;)
462 Grob *g = all_elts_sorted[i];
474 operator < (Layer_entry const &a,
475 Layer_entry const &b)
477 return a.layer_ < b.layer_;
481 System::get_paper_system ()
488 vector<Layer_entry> entries;
489 for (vsize j = 0; j < all_elements_->size (); j++)
492 e.grob_ = all_elements_->grob (j);
493 e.layer_ = robust_scm2int (e.grob_->get_property ("layer"), 1);
495 entries.push_back (e);
498 vector_sort (entries, std::less<Layer_entry> ());
499 for (vsize j = 0; j < entries.size (); j++)
501 Grob *g = entries[j].grob_;
502 Stencil st = g->get_print_stencil ();
504 if (st.expr () == SCM_EOL)
508 for (int a = X_AXIS; a < NO_AXES; a++)
509 o[Axis (a)] = g->relative_coordinate (this, Axis (a));
511 Offset extra = robust_scm2offset (g->get_property ("extra-offset"),
513 * Staff_symbol_referencer::staff_space (g);
515 /* Must copy the stencil, for we cannot change the stencil
518 st.translate (o + extra);
520 *tail = scm_cons (st.expr (), SCM_EOL);
521 tail = SCM_CDRLOC (*tail);
524 if (Stencil *me = get_stencil ())
525 exprs = scm_cons (me->expr (), exprs);
527 Interval x (extent (this, X_AXIS));
528 Interval y (extent (this, Y_AXIS));
529 Stencil sys_stencil (Box (x, y),
530 scm_cons (ly_symbol2scm ("combine-stencil"),
534 Skyline_pair *skylines = Skyline_pair::unsmob (get_property ("vertical-skylines"));
538 = Lookup::points_to_line_stencil (0.1, (*skylines)[UP].to_points (X_AXIS));
540 = Lookup::points_to_line_stencil (0.1, (*skylines)[DOWN].to_points (X_AXIS));
541 sys_stencil.add_stencil (up.in_color (255, 0, 0));
542 sys_stencil.add_stencil (down.in_color (0, 255, 0));
546 Grob *left_bound = this->get_bound (LEFT);
547 SCM prop_init = left_bound->get_property ("line-break-system-details");
548 Prob *pl = make_paper_system (prop_init);
549 paper_system_set_stencil (pl, sys_stencil);
551 /* information that the page breaker might need */
552 Grob *right_bound = this->get_bound (RIGHT);
553 pl->set_property ("vertical-skylines", this->get_property ("vertical-skylines"));
554 pl->set_property ("page-break-permission", right_bound->get_property ("page-break-permission"));
555 pl->set_property ("page-turn-permission", right_bound->get_property ("page-turn-permission"));
556 pl->set_property ("page-break-penalty", right_bound->get_property ("page-break-penalty"));
557 pl->set_property ("page-turn-penalty", right_bound->get_property ("page-turn-penalty"));
559 if (right_bound->original () == dynamic_cast<System*> (original ())->get_bound (RIGHT))
560 pl->set_property ("last-in-score", SCM_BOOL_T);
562 Interval staff_refpoints;
563 if (Grob *align = get_vertical_alignment ())
565 extract_grob_set (align, "elements", staves);
566 for (vsize i = 0; i < staves.size (); i++)
567 if (staves[i]->is_live ()
568 && Page_layout_problem::is_spaceable (staves[i]))
569 staff_refpoints.add_point (staves[i]->relative_coordinate (this,
573 pl->set_property ("staff-refpoint-extent", ly_interval2scm (staff_refpoints));
574 pl->set_property ("system-grob", this->self_scm ());
576 return pl->unprotect ();
580 System::broken_col_range (Item const *left, Item const *right) const
584 left = left->get_column ();
585 right = right->get_column ();
587 extract_grob_set (this, "columns", cols);
589 vsize i = Paper_column::get_rank (left);
590 int end_rank = Paper_column::get_rank (right);
591 if (i < cols.size ())
594 while (i < cols.size ()
595 && Paper_column::get_rank (cols[i]) < end_rank)
597 Paper_column *c = dynamic_cast<Paper_column *> (cols[i]);
598 if (Paper_column::is_breakable (c) && !c->get_system ())
606 /** Return all columns, but filter out any unused columns , since they might
607 disrupt the spacing problem. */
609 System::used_columns () const
611 extract_grob_set (this, "columns", ro_columns);
613 int last_breakable = ro_columns.size ();
615 while (last_breakable--)
617 if (Paper_column::is_breakable (ro_columns [last_breakable]))
621 vector<Grob *> columns;
622 for (int i = 0; i <= last_breakable; i++)
624 if (Paper_column::is_used (ro_columns[i]))
625 columns.push_back (ro_columns[i]);
632 System::column (vsize which) const
634 extract_grob_set (this, "columns", columns);
635 if (which >= columns.size ())
638 return dynamic_cast<Paper_column *> (columns[which]);
642 System::paper_score () const
648 System::get_rank () const
654 get_root_system (Grob *me)
656 Grob *system_grob = me;
658 while (system_grob->get_parent (Y_AXIS))
659 system_grob = system_grob->get_parent (Y_AXIS);
661 return dynamic_cast<System *> (system_grob);
665 System::get_vertical_alignment ()
667 extract_grob_set (this, "elements", elts);
669 for (vsize i = 0; i < elts.size (); i++)
670 if (Align_interface::has_interface (elts[i]))
673 programming_error ("found multiple vertical alignments in this system");
678 programming_error ("didn't find a vertical alignment in this system");
682 // Finds the furthest staff in the given direction whose x-extent
683 // overlaps with the given interval.
685 System::get_extremal_staff (Direction dir, Interval const &iv)
687 Grob *align = get_vertical_alignment ();
691 extract_grob_set (align, "elements", elts);
692 vsize start = (dir == UP) ? 0 : elts.size () - 1;
693 vsize end = (dir == UP) ? elts.size () : VPOS;
694 for (vsize i = start; i != end; i += dir)
696 if (Hara_kiri_group_spanner::has_interface (elts[i]))
697 Hara_kiri_group_spanner::consider_suicide (elts[i]);
699 Interval intersection = elts[i]->extent (this, X_AXIS);
700 intersection.intersect (iv);
701 if (elts[i]->is_live () && !intersection.is_empty ())
707 vector<Simple_spacer>
708 System::get_simple_spacers (Real line_len, Real indent, bool ragged)
710 if (!simple_spacers_.size ())
711 gen_simple_spacers (line_len, indent, ragged);
713 return simple_spacers_;
717 System::gen_simple_spacers (Real line_len, Real indent, bool ragged)
719 vector<vsize> breaks;
720 vector<Grob *> non_loose;
721 vector<Column_description> cols;
722 SCM force_break = ly_symbol2scm ("force");
723 vector<Grob *> columns = used_columns ();
725 for (vsize i = 0; i < columns.size (); i++)
726 if (!Paper_column::is_loose (columns[i])
727 || Paper_column::is_breakable (columns[i]))
728 non_loose.push_back (columns[i]);
731 breaks.push_back (0);
732 cols.push_back (Column_description ());
733 for (vsize i = 1; i + 1 < non_loose.size (); i++)
735 if (Paper_column::is_breakable (non_loose[i]))
736 breaks.push_back (cols.size ());
738 cols.push_back (Column_description::get_column_description (non_loose, i, false));
740 breaks.push_back (cols.size ());
741 simple_spacers_.resize (breaks.size () * breaks.size (), Simple_spacer ());
743 for (vsize b = 0; b + 1 < breaks.size (); b++)
745 cols[breaks[b]] = Column_description::get_column_description (non_loose, breaks[b], true);
746 vsize st = breaks[b];
748 for (vsize c = b + 1; c < breaks.size (); c++)
750 vsize end = breaks[c];
751 Simple_spacer spacer;
753 for (vsize i = breaks[b]; i < end - 1; i++)
754 spacer.add_spring (cols[i].spring_);
755 spacer.add_spring (cols[end - 1].end_spring_);
757 for (vsize i = breaks[b]; i < end; i++)
759 for (vsize r = 0; r < cols[i].rods_.size (); r++)
760 if (cols[i].rods_[r].r_ < end)
761 spacer.add_rod (i - st, cols[i].rods_[r].r_ - st, cols[i].rods_[r].dist_);
762 for (vsize r = 0; r < cols[i].end_rods_.size (); r++)
763 if (cols[i].end_rods_[r].r_ == end)
764 spacer.add_rod (i - st, end - st, cols[i].end_rods_[r].dist_);
765 if (!cols[i].keep_inside_line_.is_empty ())
767 spacer.add_rod (i - st, end - st, cols[i].keep_inside_line_[RIGHT]);
768 spacer.add_rod (0, i - st, -cols[i].keep_inside_line_[LEFT]);
771 spacer.solve ((b == 0) ? line_len - indent : line_len, ragged);
772 spacer.minimal_ = c == b + 1;
773 simple_spacers_[b * breaks.size () + c] = spacer;
776 || (end < cols.size ()
777 && cols[end].break_permission_ == force_break))
784 System::pure_refpoint_extent (vsize start, vsize end)
787 Grob *alignment = get_vertical_alignment ();
791 extract_grob_set (alignment, "elements", staves);
792 vector<Real> offsets = Align_interface::get_pure_minimum_translations (alignment, staves, Y_AXIS, start, end);
794 for (vsize i = 0; i < offsets.size (); ++i)
795 if (Page_layout_problem::is_spaceable (staves[i]))
797 ret[UP] = offsets[i];
801 for (vsize i = offsets.size (); i--;)
802 if (Page_layout_problem::is_spaceable (staves[i]))
804 ret[DOWN] = offsets[i];
812 System::part_of_line_pure_height (vsize start, vsize end, bool begin)
814 Grob *alignment = get_vertical_alignment ();
818 extract_grob_set (alignment, "elements", staves);
819 vector<Real> offsets = Align_interface::get_pure_minimum_translations (alignment, staves, Y_AXIS, start, end);
822 for (vsize i = 0; i < staves.size (); ++i)
825 ? Axis_group_interface::begin_of_line_pure_height (staves[i], start)
826 : Axis_group_interface::rest_of_line_pure_height (staves[i], start, end);
827 if (i < offsets.size ())
828 iv.translate (offsets[i]);
832 Interval other_elements = begin
833 ? Axis_group_interface::begin_of_line_pure_height (this, start)
834 : Axis_group_interface::rest_of_line_pure_height (this, start, end);
836 ret.unite (other_elements);
842 System::begin_of_line_pure_height (vsize start, vsize end)
844 return part_of_line_pure_height (start, end, true);
848 System::rest_of_line_pure_height (vsize start, vsize end)
850 return part_of_line_pure_height (start, end, false);
853 // This differs from Axis_group_interface::calc_pure_relevant_grobs
854 // because here, we are only interested in those few elements that aren't
855 // descended from VerticalAlignment (ie. things like RehearsalMark, BarLine).
856 MAKE_SCHEME_CALLBACK (System, calc_pure_relevant_grobs, 1);
858 System::calc_pure_relevant_grobs (SCM smob)
860 Grob *me = unsmob_grob (smob);
862 extract_grob_set (me, "elements", elts);
863 vector<Grob *> relevant_grobs;
864 SCM pure_relevant_p = ly_lily_module_constant ("pure-relevant?");
866 for (vsize i = 0; i < elts.size (); ++i)
868 if (!Axis_group_interface::has_interface (elts[i]))
870 if (to_boolean (scm_apply_1 (pure_relevant_p, elts[i]->self_scm (), SCM_EOL)))
871 relevant_grobs.push_back (elts[i]);
873 if (Item *it = dynamic_cast<Item *> (elts[i]))
878 Item *piece = it->find_prebroken_piece (d);
879 if (piece && to_boolean (scm_apply_1 (pure_relevant_p, piece->self_scm (), SCM_EOL)))
880 relevant_grobs.push_back (piece);
882 while (flip (&d) != LEFT);
887 SCM grobs_scm = Grob_array::make_array ();
889 unsmob_grob_array (grobs_scm)->set_array (relevant_grobs);
893 MAKE_SCHEME_CALLBACK (System, height, 1);
895 System::height (SCM smob)
897 return Axis_group_interface::height (smob);
900 MAKE_SCHEME_CALLBACK (System, calc_pure_height, 3);
902 System::calc_pure_height (SCM smob, SCM start_scm, SCM end_scm)
904 System *me = dynamic_cast<System *> (unsmob_grob (smob));
905 int start = scm_to_int (start_scm);
906 int end = scm_to_int (end_scm);
908 Interval begin = me->begin_of_line_pure_height (start, end);
909 Interval rest = me->rest_of_line_pure_height (start, end);
912 return ly_interval2scm (begin);
916 System::get_pure_bound (Direction d, int start, int end)
918 vector<vsize> ranks = pscore_->get_break_ranks ();
919 vector<vsize> indices = pscore_->get_break_indices ();
920 vector<Grob *> cols = pscore_->get_columns ();
922 vsize target_rank = (d == LEFT ? start : end);
923 vector<vsize>::const_iterator i
924 = lower_bound (ranks.begin (), ranks.end (), target_rank, std::less<vsize> ());
926 if (i != ranks.end () && (*i) == target_rank)
927 return cols[indices[i - ranks.begin ()]];
933 System::get_maybe_pure_bound (Direction d, bool pure, int start, int end)
935 return pure ? get_pure_bound (d, start, end) : get_bound (d);
945 get_maybe_spaceable_staves (SCM smob, int filter)
947 System *me = dynamic_cast<System*> (unsmob_grob (smob));
948 Grob *align = me->get_vertical_alignment ();
954 extract_grob_set (align, "elements", staves);
956 for (vsize i = 0; i < staves.size (); ++i)
958 bool spaceable = Page_layout_problem::is_spaceable (staves[i]);
959 if (staves[i]->is_live () &&
960 ((filter == ALL_STAVES)
961 || (filter == SPACEABLE_STAVES && spaceable)
962 || (filter == NONSPACEABLE_STAVES && !spaceable)))
964 *tail = scm_cons (staves[i]->self_scm (), SCM_EOL);
965 tail = SCM_CDRLOC (*tail);
973 MAKE_SCHEME_CALLBACK (System, get_staves, 1)
975 System::get_staves (SCM smob)
977 return get_maybe_spaceable_staves (smob, ALL_STAVES);
980 MAKE_SCHEME_CALLBACK (System, get_spaceable_staves, 1)
982 System::get_spaceable_staves (SCM smob)
984 return get_maybe_spaceable_staves (smob, SPACEABLE_STAVES);
987 MAKE_SCHEME_CALLBACK (System, get_nonspaceable_staves, 1)
989 System::get_nonspaceable_staves (SCM smob)
991 return get_maybe_spaceable_staves (smob, NONSPACEABLE_STAVES);
995 ADD_INTERFACE (System,
996 "This is the top-level object: Each object in a score"
997 " ultimately has a @code{System} object as its X and"
1004 "in-note-direction "
1009 "skyline-horizontal-padding "