2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2005--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
7 LilyPond is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
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13 but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 GNU General Public License for more details.
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22 #include "tie-formatting-problem.hh"
24 #include "axis-group-interface.hh"
25 #include "paper-column.hh"
27 #include "directional-element-interface.hh"
28 #include "libc-extension.hh"
30 #include "note-head.hh"
31 #include "rhythmic-head.hh"
33 #include "staff-symbol-referencer.hh"
35 #include "tie-configuration.hh"
38 #include "pointer-group-interface.hh"
39 #include "output-def.hh"
42 Tie_formatting_problem::print_ties_configuration (Ties_configuration const *ties)
44 for (vsize i = 0; i < ties->size (); i++)
46 char const *man_pos = (specifications_[i].has_manual_position_) ? "(M)" : "";
47 char const *man_dir = (specifications_[i].has_manual_dir_) ? "(M)" : "";
48 char const *dir = (ties->at (i).dir_ == UP) ? "up" : "dn";
50 printf ("(P%d%s, %s%s) ", ties->at (i).position_, man_pos, dir, man_dir);
56 Tie_formatting_problem::get_attachment (Real y, Drul_array<int> columns) const
58 Interval attachments (0, 0);
62 Tuple2<int> key (columns[d], int (d));
63 Chord_outline_map::const_iterator i (chord_outlines_.find (key));
64 if (i == chord_outlines_.end ())
65 programming_error ("Cannot find chord outline");
67 attachments[d] = i->second.height (y);
69 while (flip (&d) != LEFT);
74 Tie_formatting_problem::Tie_formatting_problem ()
78 use_horizontal_spacing_ = true;
81 Tie_formatting_problem::~Tie_formatting_problem ()
83 for (Tie_configuration_map::const_iterator i (possibilities_.begin ());
84 i != possibilities_.end (); i++)
89 Tie_formatting_problem::set_column_chord_outline (vector<Item *> bounds,
93 Real staff_space = Staff_symbol_referencer::staff_space (bounds[0]);
96 vector<Box> head_boxes;
99 for (vsize i = 0; i < bounds.size (); i++)
101 Grob *head = bounds[i];
102 if (!Note_head::has_interface (head))
106 stem = unsmob_grob (head->get_object ("stem"));
108 Real p = Staff_symbol_referencer::get_position (head);
109 Interval y ((p - 1) * 0.5 * staff_space,
110 (p + 1) * 0.5 * staff_space);
112 Interval x = head->extent (x_refpoint_, X_AXIS);
113 head_boxes.push_back (Box (x, y));
114 boxes.push_back (Box (x, y));
116 Grob *dots = Rhythmic_head::get_dots (head);
117 if (dir == LEFT && dots)
119 Interval x = dots->extent (x_refpoint_, X_AXIS);
120 int p = int (Staff_symbol_referencer::get_position (dots));
123 TODO: shouldn't this use column-rank dependent key?
125 dot_positions_.insert (p);
128 Interval y (dots->extent (dots, Y_AXIS));
129 y.translate (p * staff_space * 0.5);
131 boxes.push_back (Box (x, y));
135 Tuple2<int> key (column_rank, int (dir));
139 if (Stem::is_normal_stem (stem))
142 x.add_point (stem->relative_coordinate (x_refpoint_, X_AXIS));
143 x.widen (staff_space / 20); // ugh.
146 Real stem_end_position = 0.0;
147 if (Stem::is_cross_staff (stem))
148 stem_end_position = get_grob_direction (stem) * infinity_f;
151 if (use_horizontal_spacing_ || !Stem::get_beam (stem))
152 stem_end_position = stem->extent (stem, Y_AXIS)[get_grob_direction (stem)];
154 // May want to change this to the stem's pure height...
155 stem_end_position = Stem::note_head_positions (stem)[get_grob_direction (stem)]
159 y.add_point (stem_end_position);
161 Direction stemdir = get_grob_direction (stem);
162 y.add_point (Stem::head_positions (stem)[-stemdir]
168 boxes.push_back (Box (x, y));
170 stem_extents_[key].unite (Box (x, y));
174 Grob *flag = Stem::flag (stem);
177 Grob *commony = stem->common_refpoint (flag, Y_AXIS);
178 boxes.push_back (Box (flag->extent (x_refpoint_, X_AXIS),
179 flag->extent (commony, Y_AXIS)));
185 Grob *head = Stem::support_head (stem);
188 In case of invisible stem, don't pass x-center of heads.
190 Real x_center = head->extent (x_refpoint_, X_AXIS).center ();
192 x_ext[-dir] = x_center;
193 x_ext[dir] = infinity_f * dir;
195 for (vsize j = 0; j < head_boxes.size (); j++)
196 y_ext.unite (head_boxes[j][Y_AXIS]);
198 boxes.push_back (Box (x_ext, y_ext));
201 extract_grob_set (stem, "note-heads", heads);
202 for (vsize i = 0; i < heads.size (); i++)
204 if (find (bounds.begin (), bounds.end (), dynamic_cast<Item *> (heads[i])) == bounds.end ())
207 other untied notes in the same chord.
210 Interval y = Staff_symbol_referencer::extent_in_staff (heads[i]);
211 Interval x = heads[i]->extent (x_refpoint_, X_AXIS);
212 boxes.push_back (Box (x, y));
215 Grob *acc = unsmob_grob (heads[i]->get_object ("accidental-grob"));
217 acc->get_property ("stencil"); /* trigger tie-related suicide */
219 if (acc && acc->is_live () && dir == RIGHT)
221 boxes.push_back (Box (acc->extent (x_refpoint_, X_AXIS),
222 Staff_symbol_referencer::extent_in_staff (acc)));
225 head_positions_[column_rank].add_point (int (Staff_symbol_referencer::get_position (heads[i])));
230 Direction updowndir = DOWN;
235 if (head_boxes.size ())
237 Box b = boundary (head_boxes, updowndir, 0);
239 x[-dir] = b[X_AXIS].linear_combination (-dir / 2);
240 y[-updowndir] = b[Y_AXIS][updowndir];
241 y[updowndir] = updowndir * infinity_f;
245 boxes.push_back (Box (x, y));
247 while (flip (&updowndir) != DOWN);
249 /* todo: the horizon_padding is somewhat arbitrary */
250 chord_outlines_[key] = Skyline (boxes, details_.skyline_padding_, Y_AXIS, -dir);
251 if (bounds[0]->break_status_dir ())
253 Interval iv (Axis_group_interface::staff_extent (bounds[0], x_refpoint_, X_AXIS, y_refpoint_, Y_AXIS));
255 iv.add_point (bounds[0]->relative_coordinate (x_refpoint_, X_AXIS));
257 chord_outlines_[key].set_minimum_height (iv[-dir]);
262 for (vsize j = 0; j < head_boxes.size (); j++)
264 x.unite (head_boxes[j][X_AXIS]);
267 chord_outlines_[key].set_minimum_height (x[dir]);
270 head_extents_[key].set_empty ();
271 for (vsize i = 0; i < head_boxes.size (); i++)
273 head_extents_[key].unite (head_boxes[i]);
278 Tie_formatting_problem::set_chord_outline (vector<Item *> bounds,
283 for (vsize i = 0; i < bounds.size (); i++)
284 ranks.push_back (bounds[i]->get_column ()->get_rank ());
286 vector_sort (ranks, less<int> ());
289 for (vsize i = 0; i < ranks.size (); i++)
291 vector<Item *> col_items;
292 for (vsize j = 0; j < bounds.size (); j++)
294 if (bounds[j]->get_column ()->get_rank () == ranks[i])
295 col_items.push_back (bounds[j]);
298 set_column_chord_outline (col_items, dir, ranks[i]);
303 Tie_formatting_problem::from_tie (Grob *tie)
306 ties.push_back (tie);
309 details_.from_grob (tie);
313 Tie_formatting_problem::common_x_refpoint () const
319 Tie_formatting_problem::from_ties (vector<Grob *> const &ties)
324 x_refpoint_ = ties[0];
325 y_refpoint_ = ties[0];
326 for (vsize i = 0; i < ties.size (); i++)
328 Spanner *tie = dynamic_cast<Spanner *> (ties[i]);
329 Item *l = tie->get_bound (LEFT);
330 Item *r = tie->get_bound (RIGHT);
332 x_refpoint_ = l->common_refpoint (x_refpoint_, X_AXIS);
333 x_refpoint_ = r->common_refpoint (x_refpoint_, X_AXIS);
335 if (!l->break_status_dir ())
336 y_refpoint_ = l->common_refpoint (y_refpoint_, Y_AXIS);
337 if (!r->break_status_dir ())
338 y_refpoint_ = r->common_refpoint (y_refpoint_, Y_AXIS);
341 details_.from_grob (ties[0]);
346 vector<Item *> bounds;
348 for (vsize i = 0; i < ties.size (); i++)
350 Item *it = dynamic_cast<Spanner *> (ties[i])->get_bound (d);
351 if (it->break_status_dir ())
352 it = it->get_column ();
354 bounds.push_back (it);
357 set_chord_outline (bounds, d);
359 while (flip (&d) != LEFT);
361 for (vsize i = 0; i < ties.size (); i++)
363 Tie_specification spec;
364 spec.from_grob (ties[i]);
368 spec.note_head_drul_[d] = Tie::head (ties[i], d);
369 spec.column_ranks_[d] = Tie::get_column_rank (ties[i], d);
371 while (flip (&d) != LEFT);
372 specifications_.push_back (spec);
377 Tie_formatting_problem::from_semi_ties (vector<Grob *> const &semi_ties, Direction head_dir)
379 if (semi_ties.empty ())
382 use_horizontal_spacing_ = false;
383 details_.from_grob (semi_ties[0]);
384 vector<Item *> heads;
386 int column_rank = -1;
387 for (vsize i = 0; i < semi_ties.size (); i++)
389 Tie_specification spec;
390 Item *head = unsmob_item (semi_ties[i]->get_object ("note-head"));
393 programming_error ("LV tie without head?!");
397 spec.position_ = int (Staff_symbol_referencer::get_position (head));
400 spec.from_grob (semi_ties[i]);
402 spec.note_head_drul_[head_dir] = head;
403 column_rank = Tie::get_column_rank (semi_ties[i], head_dir);
404 spec.column_ranks_ = Drul_array<int> (column_rank, column_rank);
405 heads.push_back (head);
406 specifications_.push_back (spec);
409 x_refpoint_ = semi_ties[0];
410 y_refpoint_ = semi_ties[0];
412 for (vsize i = 0; i < semi_ties.size (); i++)
414 x_refpoint_ = semi_ties[i]->common_refpoint (x_refpoint_, X_AXIS);
415 y_refpoint_ = semi_ties[i]->common_refpoint (y_refpoint_, Y_AXIS);
417 for (vsize i = 0; i < heads.size (); i++)
419 x_refpoint_ = heads[i]->common_refpoint (x_refpoint_, X_AXIS);
420 y_refpoint_ = heads[i]->common_refpoint (y_refpoint_, Y_AXIS);
423 set_chord_outline (heads, head_dir);
425 Tuple2<int> head_key (column_rank, head_dir);
426 Tuple2<int> open_key (column_rank, -head_dir);
427 Real extremal = chord_outlines_[head_key].max_height ();
429 chord_outlines_[open_key] = Skyline (head_dir);
430 chord_outlines_[open_key].set_minimum_height (extremal - head_dir * 1.5);
434 Tie_formatting_problem::get_tie_specification (int i) const
436 return specifications_[i];
440 Return configuration, create it if necessary.
443 Tie_formatting_problem::get_configuration (int pos, Direction dir, Drul_array<int> columns,
449 pos, dir, columns[LEFT], columns[RIGHT]
451 Tuple<int, 4> key (key_components);
453 Tie_configuration_map::const_iterator f = possibilities_.find (key);
454 if (f != possibilities_.end ())
459 Tie_configuration *conf = generate_configuration (pos, dir, columns, tune_dy);
460 ((Tie_formatting_problem *) this)->possibilities_[key] = conf;
465 Tie_formatting_problem::generate_configuration (int pos, Direction dir,
466 Drul_array<int> columns, bool y_tune) const
468 Tie_configuration *conf = new Tie_configuration;
469 conf->position_ = pos;
472 conf->column_ranks_ = columns;
474 Real y = conf->position_ * 0.5 * details_.staff_space_;
476 if (dot_positions_.find (pos) != dot_positions_.end ())
478 conf->delta_y_ += dir * 0.25 * details_.staff_space_;
483 && max (fabs (get_head_extent (columns[LEFT], LEFT, Y_AXIS)[dir] - y),
484 fabs (get_head_extent (columns[RIGHT], RIGHT, Y_AXIS)[dir] - y)) < 0.25
485 && !Staff_symbol_referencer::on_line (details_.staff_symbol_referencer_, pos))
488 = (get_head_extent (columns[LEFT], LEFT, Y_AXIS)[dir] - y)
489 + dir * details_.outer_tie_vertical_gap_;
494 conf->attachment_x_ = get_attachment (y + conf->delta_y_, conf->column_ranks_);
495 Real h = conf->height (details_);
500 - should make sliding criterion, should flatten ties if
502 - they're just the wrong (ie. touching line at top & bottom)
506 if (head_positions_slice (columns[LEFT]).contains (pos)
507 || head_positions_slice (columns[RIGHT]).contains (pos)
508 || abs (pos) < 2 * Staff_symbol_referencer::staff_radius (details_.staff_symbol_referencer_))
510 if (h < details_.intra_space_threshold_ * 0.5 * details_.staff_space_)
512 if (!Staff_symbol_referencer::on_line (details_.staff_symbol_referencer_, pos)
513 && abs (pos) < 2 * Staff_symbol_referencer::staff_radius (details_.staff_symbol_referencer_))
515 conf->center_tie_vertically (details_);
517 else if (Staff_symbol_referencer::on_line (details_.staff_symbol_referencer_, pos))
519 conf->delta_y_ += dir *
520 details_.tip_staff_line_clearance_ * 0.5 * details_.staff_space_;
525 Real top_y = y + conf->delta_y_ + conf->dir_ * h;
526 Real top_pos = top_y / (0.5 * details_.staff_space_);
527 int round_pos = int (my_round (top_pos));
529 /* TODO: should use other variable? */
530 Real clearance = details_.center_staff_line_clearance_;
531 if (fabs (top_pos - round_pos) < clearance
532 && Staff_symbol_referencer::on_staff_line (details_.staff_symbol_referencer_,
535 Real new_y = (round_pos + clearance * conf->dir_) * 0.5 * details_.staff_space_;
536 conf->delta_y_ = (new_y - top_y);
541 conf->attachment_x_ = get_attachment (y + conf->delta_y_, conf->column_ranks_);
542 if (conf->height (details_) < details_.intra_space_threshold_ * 0.5 * details_.staff_space_)
545 This is less sensible for long ties, since those are more
548 Interval close_by = get_attachment (y
550 + (dir * details_.intra_space_threshold_ * 0.25
551 * details_.staff_space_),
552 conf->column_ranks_);
554 conf->attachment_x_.intersect (close_by);
557 conf->attachment_x_.widen ( - details_.x_gap_);
559 if (conf->column_span_length ())
562 avoid the stems that we attach to as well. We don't do this
563 for semities (span length = 0)
565 It would be better to check D against HEAD-DIRECTION if
571 Real y = conf->position_ * details_.staff_space_ * 0.5 + conf->delta_y_;
572 if (get_stem_extent (conf->column_ranks_[d], d, X_AXIS).is_empty ()
573 || !get_stem_extent (conf->column_ranks_[d], d, Y_AXIS).contains (y))
576 conf->attachment_x_[d]
577 = d * min (d * conf->attachment_x_[d],
578 d * (get_stem_extent (conf->column_ranks_[d], d, X_AXIS)[-d] - d * details_.stem_gap_));
580 while (flip (&d) != LEFT);
586 Tie_formatting_problem::get_head_extent (int col, Direction d, Axis a) const
588 Column_extent_map::const_iterator i = head_extents_.find (Tuple2<int> (col, int (d)));
589 if (i != head_extents_.end ())
590 return (*i).second[a];
596 Tie_formatting_problem::get_stem_extent (int col, Direction d, Axis a) const
598 Column_extent_map::const_iterator i = stem_extents_.find (Tuple2<int> (col, int (d)));
599 if (i != stem_extents_.end ())
600 return (*i).second[a];
606 TIE_IDX and TIES_CONF are optional.
609 Tie_formatting_problem::score_aptitude (Tie_configuration *conf,
610 Tie_specification const &spec,
611 Ties_configuration *ties_conf, int tie_idx) const
614 Real curve_y = conf->position_ * details_.staff_space_ * 0.5 + conf->delta_y_;
615 Real tie_y = spec.position_ * details_.staff_space_ * 0.5;
616 if (sign (curve_y - tie_y) != conf->dir_)
618 Real p = details_.wrong_direction_offset_penalty_;
620 ties_conf->add_tie_score (p, tie_idx, "wrong dir");
626 Real relevant_dist = max (fabs (curve_y - tie_y) - 0.5, 0.0);
627 Real p = details_.vertical_distance_penalty_factor_ * convex_amplifier (1.0, 0.9, relevant_dist);
629 ties_conf->add_tie_score (p, tie_idx, "vdist");
637 if (!spec.note_head_drul_[d])
640 Interval head_x = spec.note_head_drul_[d]->extent (x_refpoint_, X_AXIS);
641 Real dist = head_x.distance (conf->attachment_x_[d]);
644 TODO: flatten with log or sqrt.
646 Real p = details_.horizontal_distance_penalty_factor_
647 * convex_amplifier (1.25, 1.0, dist);
649 ties_conf->add_tie_score (p, tie_idx,
650 (d == LEFT) ? "lhdist" : "rhdist");
655 while (flip (&d) != LEFT);
658 && ties_conf->size () == 1)
661 Drul_array<Grob *> stems (0, 0);
664 if (!spec.note_head_drul_[d])
667 Grob *stem = unsmob_grob (spec.note_head_drul_[d]->get_object ("stem"));
669 && Stem::is_normal_stem (stem))
672 while (flip (&d) != LEFT);
674 bool tie_stem_dir_ok = true;
675 bool tie_position_dir_ok = true;
676 if (stems[LEFT] && !stems[RIGHT])
677 tie_stem_dir_ok = conf->dir_ != get_grob_direction (stems[LEFT]);
678 else if (!stems[LEFT] && stems[RIGHT])
679 tie_stem_dir_ok = conf->dir_ != get_grob_direction (stems[RIGHT]);
680 else if (stems[LEFT] && stems[RIGHT]
681 && get_grob_direction (stems[LEFT]) == get_grob_direction (stems[RIGHT]))
682 tie_stem_dir_ok = conf->dir_ != get_grob_direction (stems[LEFT]);
683 else if (spec.position_)
684 tie_position_dir_ok = conf->dir_ == sign (spec.position_);
686 if (!tie_stem_dir_ok)
687 ties_conf->add_score (details_.same_dir_as_stem_penalty_, "tie/stem dir");
688 if (!tie_position_dir_ok)
689 ties_conf->add_score (details_.same_dir_as_stem_penalty_, "tie/pos dir");
696 Tie_formatting_problem::head_positions_slice (int rank) const
698 Position_extent_map::const_iterator i (head_positions_.find (rank));
699 if (i != head_positions_.end ())
708 Score a configuration, ie. how well these ties looks without regard
709 to the note heads that they should connect to.
712 Tie_formatting_problem::score_configuration (Tie_configuration *conf) const
719 Real length = conf->attachment_x_.length ();
722 = peak_around (0.33 * details_.min_length_, details_.min_length_, length);
723 conf->add_score (details_.min_length_penalty_factor_
724 * length_penalty, "minlength");
726 Real tip_pos = conf->position_ + conf->delta_y_ / 0.5 * details_.staff_space_;
727 Real tip_y = tip_pos * details_.staff_space_ * 0.5;
728 Real height = conf->height (details_);
730 Real top_y = tip_y + conf->dir_ * height;
731 Real top_pos = 2 * top_y / details_.staff_space_;
732 Real round_top_pos = rint (top_pos);
733 if (Staff_symbol_referencer::on_line (details_.staff_symbol_referencer_,
735 && Staff_symbol_referencer::staff_radius (details_.staff_symbol_referencer_) > top_y)
737 conf->add_score (details_.staff_line_collision_penalty_
738 * peak_around (0.1 * details_.center_staff_line_clearance_,
739 details_.center_staff_line_clearance_,
740 fabs (top_pos - round_top_pos)),
744 int rounded_tip_pos = int (rint (tip_pos));
745 if (Staff_symbol_referencer::on_line (details_.staff_symbol_referencer_, rounded_tip_pos)
746 && (head_positions_slice (conf->column_ranks_[LEFT]).contains (rounded_tip_pos)
747 || head_positions_slice (conf->column_ranks_[RIGHT]).contains (rounded_tip_pos)
748 || abs (rounded_tip_pos) < 2 * Staff_symbol_referencer::staff_radius (details_.staff_symbol_referencer_))
751 conf->add_score (details_.staff_line_collision_penalty_
752 * peak_around (0.1 * details_.tip_staff_line_clearance_,
753 details_.tip_staff_line_clearance_,
754 fabs (tip_pos - rint (tip_pos))),
758 if (!dot_x_.is_empty ())
761 Real x = dot_x_.center ();
763 Bezier b = conf->get_transformed_bezier (details_);
764 if (b.control_point_extent (X_AXIS).contains (x))
766 Real y = b.get_other_coordinate (X_AXIS, x);
768 for (set<int>::const_iterator i (dot_positions_.begin ());
769 i != dot_positions_.end (); i++)
772 conf->add_score (details_.dot_collision_penalty_
773 * peak_around (.1 * details_.dot_collision_clearance_,
774 details_.dot_collision_clearance_,
775 fabs (dot_pos * details_.staff_space_ * 0.5 - y)),
781 conf->scored_ = true;
785 Tie_formatting_problem::score_ties_aptitude (Ties_configuration *ties) const
787 if (ties->size () != specifications_.size ())
789 programming_error ("Huh? Mismatch between sizes.");
793 for (vsize i = 0; i < ties->size (); i++)
794 score_aptitude (&ties->at (i), specifications_[i],
799 Tie_formatting_problem::score_ties (Ties_configuration *ties) const
804 score_ties_configuration (ties);
805 score_ties_aptitude (ties);
806 ties->scored_ = true;
810 Tie_formatting_problem::score_ties_configuration (Ties_configuration *ties) const
812 for (vsize i = 0; i < ties->size (); i++)
814 score_configuration (&ties->at (i));
815 ties->add_tie_score (ties->at (i).score (), i, "conf");
818 Real last_edge = 0.0;
819 Real last_center = 0.0;
820 for (vsize i = 0; i < ties->size (); i++)
822 Bezier b (ties->at (i).get_transformed_bezier (details_));
824 Real center = b.curve_point (0.5)[Y_AXIS];
825 Real edge = b.curve_point (0.0)[Y_AXIS];
829 if (edge <= last_edge)
830 ties->add_score (details_.tie_column_monotonicity_penalty_, "monoton edge");
831 if (center <= last_center)
832 ties->add_score (details_.tie_column_monotonicity_penalty_, "monoton cent");
834 ties->add_score (details_.tie_tie_collision_penalty_ *
835 peak_around (0.1 * details_.tie_tie_collision_distance_,
836 details_.tie_tie_collision_distance_,
837 fabs (center - last_center)),
839 ties->add_score (details_.tie_tie_collision_penalty_ *
840 peak_around (0.1 * details_.tie_tie_collision_distance_,
841 details_.tie_tie_collision_distance_,
842 fabs (edge - last_edge)), "tietie edge");
846 last_center = center;
849 if (ties->size () > 1)
851 ties->add_score (details_.outer_tie_length_symmetry_penalty_factor_
852 * fabs (ties->at (0).attachment_x_.length () - ties->back ().attachment_x_.length ()),
855 ties->add_score (details_.outer_tie_vertical_distance_symmetry_penalty_factor_
856 * fabs (fabs (specifications_[0].position_ * 0.5 * details_.staff_space_
857 - (ties->at (0).position_ * 0.5 * details_.staff_space_
858 + ties->at (0).delta_y_))
860 fabs (specifications_.back ().position_ * 0.5 * details_.staff_space_
861 - (ties->back ().position_ * 0.5 * details_.staff_space_
862 + ties->back ().delta_y_))),
868 Generate with correct X-attachments and beziers, copying delta_y_
869 from TIES_CONFIG if necessary.
872 Tie_formatting_problem::generate_ties_configuration (Ties_configuration const &ties_config)
874 Ties_configuration copy;
875 for (vsize i = 0; i < ties_config.size (); i++)
877 Tie_configuration *ptr = get_configuration (ties_config[i].position_, ties_config[i].dir_,
878 ties_config[i].column_ranks_,
879 !specifications_[i].has_manual_delta_y_);
880 if (specifications_[i].has_manual_delta_y_)
883 = (specifications_[i].manual_position_ - ties_config[i].position_)
884 * 0.5 * details_.staff_space_;
886 copy.push_back (*ptr);
893 Tie_formatting_problem::generate_base_chord_configuration ()
895 Ties_configuration ties_config;
896 for (vsize i = 0; i < specifications_.size (); i++)
898 Tie_configuration conf;
899 if (specifications_[i].has_manual_dir_)
900 conf.dir_ = specifications_[i].manual_dir_;
901 if (specifications_[i].has_manual_position_)
903 conf.position_ = (int) my_round (specifications_[i].manual_position_);
904 if (specifications_[i].has_manual_delta_y_)
905 conf.delta_y_ = (specifications_[i].manual_position_ - conf.position_)
906 * 0.5 * details_.staff_space_;
910 conf.position_ = specifications_[i].position_;
913 conf.column_ranks_ = specifications_[i].column_ranks_;
914 ties_config.push_back (conf);
917 set_ties_config_standard_directions (&ties_config);
918 for (vsize i = 0; i < ties_config.size (); i++)
919 if (!specifications_[i].manual_position_)
920 ties_config[i].position_ += ties_config[i].dir_;
922 ties_config = generate_ties_configuration (ties_config);
928 Tie_formatting_problem::find_best_variation (Ties_configuration const &base,
929 vector<Tie_configuration_variation> const &vars)
931 Ties_configuration best = base;
934 This simply is 1-opt: we have K substitions, and we try applying
935 exactly every one for each.
937 for (vsize i = 0; i < vars.size (); i++)
939 Ties_configuration variant (base);
940 for (vsize j = 0; j < vars[i].index_suggestion_pairs_.size (); j++)
941 variant[vars[i].index_suggestion_pairs_[j].first] = *vars[i].index_suggestion_pairs_[j].second;
943 variant.reset_score ();
944 score_ties (&variant);
946 if (variant.score () < best.score ())
956 Tie_formatting_problem::generate_optimal_configuration ()
958 Ties_configuration base = generate_base_chord_configuration ();
961 vector<Tie_configuration_variation> vars;
962 if (specifications_.size () > 1)
963 vars = generate_collision_variations (base);
965 vars = generate_single_tie_variations (base);
967 Ties_configuration best = find_best_variation (base, vars);
969 if (specifications_.size () > 1)
971 vars = generate_extremal_tie_variations (best);
972 best = find_best_variation (best, vars);
978 Tie_formatting_problem::set_ties_config_standard_directions (Ties_configuration *tie_configs)
980 if (tie_configs->empty ())
983 if (!tie_configs->at (0).dir_)
985 if (tie_configs->size () == 1)
986 tie_configs->at (0).dir_ = Direction (sign (tie_configs->at (0).position_));
988 if (!tie_configs->at (0).dir_)
989 tie_configs->at (0).dir_
990 = (tie_configs->size () > 1) ? DOWN : details_.neutral_direction_;
993 if (!tie_configs->back ().dir_)
994 tie_configs->back ().dir_ = UP;
999 for (vsize i = 1; i < tie_configs->size (); i++)
1001 Real diff = (tie_configs->at (i).position_
1002 - tie_configs->at (i - 1).position_);
1005 = specifications_[i].column_span () - specifications_[i - 1].column_span ();
1006 if (span_diff && fabs (diff) <= 2)
1009 tie_configs->at (i).dir_ = UP;
1010 else if (span_diff < 0)
1011 tie_configs->at (i - 1).dir_ = DOWN;
1013 else if (fabs (diff) <= 1)
1015 if (!tie_configs->at (i - 1).dir_)
1016 tie_configs->at (i - 1).dir_ = DOWN;
1017 if (!tie_configs->at (i).dir_)
1018 tie_configs->at (i).dir_ = UP;
1022 for (vsize i = 1; i + 1 < tie_configs->size (); i++)
1024 Tie_configuration &conf = tie_configs->at (i);
1028 Direction position_dir
1029 = Direction (sign (conf.position_));
1031 position_dir = DOWN;
1033 conf.dir_ = position_dir;
1037 vector<Tie_configuration_variation>
1038 Tie_formatting_problem::generate_extremal_tie_variations (Ties_configuration const &ties) const
1040 vector<Tie_configuration_variation> vars;
1042 for (int i = 1; i <= details_.multi_tie_region_size_; i++)
1044 Drul_array<Tie_configuration *> configs (0, 0);
1047 const Tie_configuration &config = boundary (ties, d, 0);
1048 if (config.dir_ == d
1049 && !boundary (specifications_, d, 0).has_manual_position_)
1051 Tie_configuration_variation var;
1052 configs[d] = get_configuration (config.position_ + d * i, d,
1053 config.column_ranks_,
1055 var.add_suggestion ((d == DOWN) ? 0 : ties.size () - 1,
1057 vars.push_back (var);
1060 while (flip (&d) != DOWN);
1061 if (configs[LEFT] && configs[RIGHT])
1063 Tie_configuration_variation var;
1064 var.add_suggestion (0, configs[DOWN]);
1065 var.add_suggestion (ties.size () - 1, configs[UP]);
1066 vars.push_back (var);
1073 vector<Tie_configuration_variation>
1074 Tie_formatting_problem::generate_single_tie_variations (Ties_configuration const &ties) const
1076 vector<Tie_configuration_variation> vars;
1078 int sz = details_.single_tie_region_size_;
1079 if (specifications_[0].has_manual_position_)
1081 for (int i = 0; i < sz; i++)
1087 && ties[0].dir_ == d)
1090 int p = ties[0].position_ + i * d;
1092 if (!specifications_[0].has_manual_dir_
1093 || d == specifications_[0].manual_dir_)
1095 Tie_configuration_variation var;
1096 var.add_suggestion (0,
1097 get_configuration (p,
1098 d, specifications_[0].column_ranks_,
1099 !specifications_[0].has_manual_delta_y_));
1100 vars.push_back (var);
1103 while (flip (&d) != LEFT);
1108 vector<Tie_configuration_variation>
1109 Tie_formatting_problem::generate_collision_variations (Ties_configuration const &ties) const
1111 Real center_distance_tolerance = 0.25;
1113 vector<Tie_configuration_variation> vars;
1114 Real last_center = 0.0;
1115 for (vsize i = 0; i < ties.size (); i++)
1117 Bezier b (ties[i].get_transformed_bezier (details_));
1119 Real center = b.curve_point (0.5)[Y_AXIS];
1123 if (center <= last_center + center_distance_tolerance)
1125 if (!specifications_[i].has_manual_dir_)
1127 Tie_configuration_variation var;
1128 var.add_suggestion (i,
1129 get_configuration (specifications_[i].position_
1133 ties[i].column_ranks_,
1134 !specifications_[i].has_manual_delta_y_
1137 vars.push_back (var);
1140 if (!specifications_[i - 1].has_manual_dir_)
1142 Tie_configuration_variation var;
1143 var.add_suggestion (i - 1,
1144 get_configuration (specifications_[i - 1].position_
1147 specifications_[i - 1].column_ranks_,
1148 !specifications_[i - 1].has_manual_delta_y_));
1150 vars.push_back (var);
1153 if (i == 1 && !specifications_[i - 1].has_manual_position_
1154 && ties[i - 1].dir_ == DOWN)
1156 Tie_configuration_variation var;
1157 var.add_suggestion (i - 1,
1158 get_configuration (specifications_[i - 1].position_ - 1, DOWN,
1159 specifications_[i - 1].column_ranks_,
1160 !specifications_[i - 1].has_manual_delta_y_
1162 vars.push_back (var);
1164 if (i == ties.size () && !specifications_[i].has_manual_position_
1165 && ties[i].dir_ == UP)
1167 Tie_configuration_variation var;
1168 var.add_suggestion (i,
1169 get_configuration (specifications_[i].position_
1171 specifications_[i].column_ranks_,
1172 !specifications_[i].has_manual_delta_y_
1174 vars.push_back (var);
1177 else if (dot_positions_.find (ties[i].position_) != dot_positions_.end ()
1178 && !specifications_[i].has_manual_position_)
1180 Tie_configuration_variation var;
1181 var.add_suggestion (i,
1182 get_configuration (ties[i].position_ + ties[i].dir_,
1184 ties[i].column_ranks_,
1185 !specifications_[i].has_manual_delta_y_
1187 vars.push_back (var);
1192 last_center = center;
1199 Tie_formatting_problem::set_manual_tie_configuration (SCM manual_configs)
1202 for (SCM s = manual_configs;
1203 scm_is_pair (s) && k < specifications_.size (); s = scm_cdr (s))
1205 SCM entry = scm_car (s);
1206 if (scm_is_pair (entry))
1208 Tie_specification &spec = specifications_[k];
1210 if (scm_is_number (scm_car (entry)))
1212 spec.has_manual_position_ = true;
1213 spec.manual_position_ = scm_to_double (scm_car (entry));
1214 spec.has_manual_delta_y_ = (scm_inexact_p (scm_car (entry)) == SCM_BOOL_T);
1217 if (scm_is_number (scm_cdr (entry)))
1219 spec.has_manual_dir_ = true;
1220 spec.manual_dir_ = Direction (scm_to_int (scm_cdr (entry)));
1228 Tie_formatting_problem::set_debug_scoring (Ties_configuration const &base)
1230 #if DEBUG_TIE_SCORING
1231 if (to_boolean (x_refpoint_->layout ()
1232 ->lookup_variable (ly_symbol2scm ("debug-tie-scoring"))))
1234 for (vsize i = 0; i < base.size (); i++)
1236 string card = base.complete_tie_card (i);
1237 specifications_[i].tie_grob_->set_property ("annotation",
1238 ly_string2scm (card));