2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2005--2015 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"
32 #include "semi-tie.hh"
34 #include "staff-symbol-referencer.hh"
36 #include "tie-configuration.hh"
39 #include "pointer-group-interface.hh"
40 #include "output-def.hh"
43 Tie_formatting_problem::print_ties_configuration (Ties_configuration const *ties)
45 for (vsize i = 0; i < ties->size (); i++)
47 char const *man_pos = (specifications_[i].has_manual_position_) ? "(M)" : "";
48 char const *man_dir = (specifications_[i].has_manual_dir_) ? "(M)" : "";
49 char const *dir = (ties->at (i).dir_ == UP) ? "up" : "dn";
51 printf ("(P%d%s, %s%s) ", ties->at (i).position_, man_pos, dir, man_dir);
57 Tie_formatting_problem::get_attachment (Real y, Drul_array<int> columns) const
59 Interval attachments (0, 0);
61 for (LEFT_and_RIGHT (d))
63 Tuple2<int> key (columns[d], int (d));
64 Chord_outline_map::const_iterator i (chord_outlines_.find (key));
65 if (i == chord_outlines_.end ())
66 programming_error ("Cannot find chord outline");
68 attachments[d] = i->second.height (y);
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 (!has_interface<Note_head> (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::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 ("after-line-breaking"); /* 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 for (DOWN_and_UP (updowndir))
234 if (head_boxes.size ())
236 Box b = boundary (head_boxes, updowndir, 0);
238 x[-dir] = b[X_AXIS].linear_combination (-dir / 2);
239 y[-updowndir] = b[Y_AXIS][updowndir];
240 y[updowndir] = updowndir * infinity_f;
244 boxes.push_back (Box (x, y));
247 chord_outlines_[key] = Skyline (boxes, Y_AXIS, -dir).padded (details_.skyline_padding_);
248 if (bounds[0]->break_status_dir ())
250 Interval iv (Axis_group_interface::staff_extent (bounds[0], x_refpoint_, X_AXIS, y_refpoint_, Y_AXIS));
252 iv.add_point (bounds[0]->relative_coordinate (x_refpoint_, X_AXIS));
254 chord_outlines_[key].set_minimum_height (iv[-dir]);
259 for (vsize j = 0; j < head_boxes.size (); j++)
261 x.unite (head_boxes[j][X_AXIS]);
264 chord_outlines_[key].set_minimum_height (x[dir]);
267 head_extents_[key].set_empty ();
268 for (vsize i = 0; i < head_boxes.size (); i++)
270 head_extents_[key].unite (head_boxes[i]);
275 Tie_formatting_problem::set_chord_outline (vector<Item *> bounds,
280 for (vsize i = 0; i < bounds.size (); i++)
281 ranks.push_back (bounds[i]->get_column ()->get_rank ());
283 vector_sort (ranks, less<int> ());
286 for (vsize i = 0; i < ranks.size (); i++)
288 vector<Item *> col_items;
289 for (vsize j = 0; j < bounds.size (); j++)
291 if (bounds[j]->get_column ()->get_rank () == ranks[i])
292 col_items.push_back (bounds[j]);
295 set_column_chord_outline (col_items, dir, ranks[i]);
300 Tie_formatting_problem::from_tie (Grob *tie)
303 ties.push_back (tie);
306 details_.from_grob (tie);
310 Tie_formatting_problem::common_x_refpoint () const
316 Tie_formatting_problem::from_ties (vector<Grob *> const &ties)
321 x_refpoint_ = ties[0];
322 y_refpoint_ = ties[0];
323 for (vsize i = 0; i < ties.size (); i++)
325 Spanner *tie = dynamic_cast<Spanner *> (ties[i]);
326 Item *l = tie->get_bound (LEFT);
327 Item *r = tie->get_bound (RIGHT);
329 x_refpoint_ = l->common_refpoint (x_refpoint_, X_AXIS);
330 x_refpoint_ = r->common_refpoint (x_refpoint_, X_AXIS);
332 if (!l->break_status_dir ())
333 y_refpoint_ = l->common_refpoint (y_refpoint_, Y_AXIS);
334 if (!r->break_status_dir ())
335 y_refpoint_ = r->common_refpoint (y_refpoint_, Y_AXIS);
338 details_.from_grob (ties[0]);
340 for (LEFT_and_RIGHT (d))
342 vector<Item *> bounds;
344 for (vsize i = 0; i < ties.size (); i++)
346 Spanner *tie = dynamic_cast<Spanner *> (ties[i]);
347 Item *it = tie->get_bound (d);
348 if (it->break_status_dir ())
349 it = it->get_column ();
351 bounds.push_back (it);
354 set_chord_outline (bounds, d);
357 for (vsize i = 0; i < ties.size (); i++)
359 Spanner *tie = dynamic_cast<Spanner *> (ties[i]);
360 Tie_specification spec;
361 spec.from_grob (tie);
363 for (LEFT_and_RIGHT (d))
365 spec.note_head_drul_[d] = Tie::head (tie, d);
366 spec.column_ranks_[d] = Tie::get_column_rank (tie, d);
368 specifications_.push_back (spec);
373 Tie_formatting_problem::from_semi_ties (vector<Grob *> const &semi_ties, Direction head_dir)
375 if (semi_ties.empty ())
378 use_horizontal_spacing_ = false;
379 details_.from_grob (semi_ties[0]);
380 vector<Item *> heads;
382 int column_rank = -1;
383 for (vsize i = 0; i < semi_ties.size (); i++)
385 Item *semi_tie = dynamic_cast<Item *> (semi_ties[i]);
386 Tie_specification spec;
387 Item *head = Semi_tie::head (semi_tie);
390 programming_error ("LV tie without head?!");
394 spec.position_ = int (Staff_symbol_referencer::get_position (head));
397 spec.from_grob (semi_tie);
399 spec.note_head_drul_[head_dir] = head;
400 column_rank = Semi_tie::get_column_rank (semi_tie);
401 spec.column_ranks_ = Drul_array<int> (column_rank, column_rank);
402 heads.push_back (head);
403 specifications_.push_back (spec);
406 x_refpoint_ = semi_ties[0];
407 y_refpoint_ = semi_ties[0];
409 for (vsize i = 0; i < semi_ties.size (); i++)
411 x_refpoint_ = semi_ties[i]->common_refpoint (x_refpoint_, X_AXIS);
412 y_refpoint_ = semi_ties[i]->common_refpoint (y_refpoint_, Y_AXIS);
414 for (vsize i = 0; i < heads.size (); i++)
416 x_refpoint_ = heads[i]->common_refpoint (x_refpoint_, X_AXIS);
417 y_refpoint_ = heads[i]->common_refpoint (y_refpoint_, Y_AXIS);
420 set_chord_outline (heads, head_dir);
422 Tuple2<int> head_key (column_rank, head_dir);
423 Tuple2<int> open_key (column_rank, -head_dir);
424 Real extremal = chord_outlines_[head_key].max_height ();
426 chord_outlines_[open_key] = Skyline (head_dir);
427 chord_outlines_[open_key].set_minimum_height (extremal - head_dir * 1.5);
431 Tie_formatting_problem::get_tie_specification (int i) const
433 return specifications_[i];
437 Return configuration, create it if necessary.
440 Tie_formatting_problem::get_configuration (int pos, Direction dir, Drul_array<int> columns,
446 pos, dir, columns[LEFT], columns[RIGHT]
448 Tuple<int, 4> key (key_components);
450 Tie_configuration_map::const_iterator f = possibilities_.find (key);
451 if (f != possibilities_.end ())
456 Tie_configuration *conf = generate_configuration (pos, dir, columns, tune_dy);
457 ((Tie_formatting_problem *) this)->possibilities_[key] = conf;
462 Tie_formatting_problem::generate_configuration (int pos, Direction dir,
463 Drul_array<int> columns, bool y_tune) const
465 Tie_configuration *conf = new Tie_configuration;
466 conf->position_ = pos;
469 conf->column_ranks_ = columns;
471 Real y = conf->position_ * 0.5 * details_.staff_space_;
473 if (dot_positions_.find (pos) != dot_positions_.end ())
475 conf->delta_y_ += dir * 0.25 * details_.staff_space_;
480 && max (fabs (get_head_extent (columns[LEFT], LEFT, Y_AXIS)[dir] - y),
481 fabs (get_head_extent (columns[RIGHT], RIGHT, Y_AXIS)[dir] - y)) < 0.25
482 && !Staff_symbol_referencer::on_line (details_.staff_symbol_referencer_, pos))
485 = (get_head_extent (columns[LEFT], LEFT, Y_AXIS)[dir] - y)
486 + dir * details_.outer_tie_vertical_gap_;
491 conf->attachment_x_ = get_attachment (y + conf->delta_y_, conf->column_ranks_);
492 Real h = conf->height (details_);
497 - should make sliding criterion, should flatten ties if
499 - they're just the wrong (ie. touching line at top & bottom)
504 = Staff_symbol_referencer::staff_span (details_.staff_symbol_referencer_);
505 staff_span.widen (-1);
506 bool const within_staff = staff_span.contains (pos);
507 if (head_positions_slice (columns[LEFT]).contains (pos)
508 || head_positions_slice (columns[RIGHT]).contains (pos)
511 if (h < details_.intra_space_threshold_ * 0.5 * details_.staff_space_)
513 if (Staff_symbol_referencer::on_line (details_.staff_symbol_referencer_, pos))
515 conf->delta_y_ += dir *
516 details_.tip_staff_line_clearance_ * 0.5 * details_.staff_space_;
518 else if (within_staff)
520 conf->center_tie_vertically (details_);
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
568 for (LEFT_and_RIGHT (d))
570 Real y = conf->position_ * details_.staff_space_ * 0.5 + conf->delta_y_;
571 if (get_stem_extent (conf->column_ranks_[d], d, X_AXIS).is_empty ()
572 || !get_stem_extent (conf->column_ranks_[d], d, Y_AXIS).contains (y))
575 conf->attachment_x_[d]
576 = d * min (d * conf->attachment_x_[d],
577 d * (get_stem_extent (conf->column_ranks_[d], d, X_AXIS)[-d] - d * details_.stem_gap_));
584 Tie_formatting_problem::get_head_extent (int col, Direction d, Axis a) const
586 Column_extent_map::const_iterator i = head_extents_.find (Tuple2<int> (col, int (d)));
587 if (i != head_extents_.end ())
588 return (*i).second[a];
594 Tie_formatting_problem::get_stem_extent (int col, Direction d, Axis a) const
596 Column_extent_map::const_iterator i = stem_extents_.find (Tuple2<int> (col, int (d)));
597 if (i != stem_extents_.end ())
598 return (*i).second[a];
604 TIE_IDX and TIES_CONF are optional.
607 Tie_formatting_problem::score_aptitude (Tie_configuration *conf,
608 Tie_specification const &spec,
609 Ties_configuration *ties_conf, int tie_idx) const
612 Real curve_y = conf->position_ * details_.staff_space_ * 0.5 + conf->delta_y_;
613 Real tie_y = spec.position_ * details_.staff_space_ * 0.5;
614 if (sign (curve_y - tie_y) != conf->dir_)
616 Real p = details_.wrong_direction_offset_penalty_;
618 ties_conf->add_tie_score (p, tie_idx, "wrong dir");
624 Real relevant_dist = max (fabs (curve_y - tie_y) - 0.5, 0.0);
625 Real p = details_.vertical_distance_penalty_factor_ * convex_amplifier (1.0, 0.9, relevant_dist);
627 ties_conf->add_tie_score (p, tie_idx, "vdist");
632 for (LEFT_and_RIGHT (d))
634 if (!spec.note_head_drul_[d])
637 Interval head_x = spec.note_head_drul_[d]->extent (x_refpoint_, X_AXIS);
638 Real dist = head_x.distance (conf->attachment_x_[d]);
641 TODO: flatten with log or sqrt.
643 Real p = details_.horizontal_distance_penalty_factor_
644 * convex_amplifier (1.25, 1.0, dist);
646 ties_conf->add_tie_score (p, tie_idx,
647 (d == LEFT) ? "lhdist" : "rhdist");
654 && ties_conf->size () == 1)
656 Drul_array<Grob *> stems (0, 0);
657 for (LEFT_and_RIGHT (d))
659 if (!spec.note_head_drul_[d])
662 Grob *stem = unsmob<Grob> (spec.note_head_drul_[d]->get_object ("stem"));
664 && Stem::is_normal_stem (stem))
668 bool tie_stem_dir_ok = true;
669 bool tie_position_dir_ok = true;
670 if (stems[LEFT] && !stems[RIGHT])
671 tie_stem_dir_ok = conf->dir_ != get_grob_direction (stems[LEFT]);
672 else if (!stems[LEFT] && stems[RIGHT])
673 tie_stem_dir_ok = conf->dir_ != get_grob_direction (stems[RIGHT]);
674 else if (stems[LEFT] && stems[RIGHT]
675 && get_grob_direction (stems[LEFT]) == get_grob_direction (stems[RIGHT]))
676 tie_stem_dir_ok = conf->dir_ != get_grob_direction (stems[LEFT]);
677 else if (spec.position_)
678 tie_position_dir_ok = conf->dir_ == sign (spec.position_);
680 if (!tie_stem_dir_ok)
681 ties_conf->add_score (details_.same_dir_as_stem_penalty_, "tie/stem dir");
682 if (!tie_position_dir_ok)
683 ties_conf->add_score (details_.same_dir_as_stem_penalty_, "tie/pos dir");
690 Tie_formatting_problem::head_positions_slice (int rank) const
692 Position_extent_map::const_iterator i (head_positions_.find (rank));
693 if (i != head_positions_.end ())
702 Score a configuration, ie. how well these ties looks without regard
703 to the note heads that they should connect to.
706 Tie_formatting_problem::score_configuration (Tie_configuration *conf) const
713 Real length = conf->attachment_x_.length ();
716 = peak_around (0.33 * details_.min_length_, details_.min_length_, length);
717 conf->add_score (details_.min_length_penalty_factor_
718 * length_penalty, "minlength");
720 Real tip_pos = conf->position_ + conf->delta_y_ / 0.5 * details_.staff_space_;
721 Real tip_y = tip_pos * details_.staff_space_ * 0.5;
722 Real height = conf->height (details_);
724 Real top_y = tip_y + conf->dir_ * height;
725 Real top_pos = 2 * top_y / details_.staff_space_;
726 Real round_top_pos = rint (top_pos);
728 = Staff_symbol_referencer::staff_span (details_.staff_symbol_referencer_);
729 if (Staff_symbol_referencer::on_line (details_.staff_symbol_referencer_,
731 && staff_span[UP] * 0.5 > top_y)
733 conf->add_score (details_.staff_line_collision_penalty_
734 * peak_around (0.1 * details_.center_staff_line_clearance_,
735 details_.center_staff_line_clearance_,
736 fabs (top_pos - round_top_pos)),
740 int rounded_tip_pos = int (rint (tip_pos));
741 staff_span.widen (-1);
742 if (Staff_symbol_referencer::on_line (details_.staff_symbol_referencer_, rounded_tip_pos)
743 && (head_positions_slice (conf->column_ranks_[LEFT]).contains (rounded_tip_pos)
744 || head_positions_slice (conf->column_ranks_[RIGHT]).contains (rounded_tip_pos)
745 || staff_span.contains (rounded_tip_pos))
748 conf->add_score (details_.staff_line_collision_penalty_
749 * peak_around (0.1 * details_.tip_staff_line_clearance_,
750 details_.tip_staff_line_clearance_,
751 fabs (tip_pos - rint (tip_pos))),
755 if (!dot_x_.is_empty ())
758 Real x = dot_x_.center ();
760 Bezier b = conf->get_transformed_bezier (details_);
761 if (b.control_point_extent (X_AXIS).contains (x))
763 Real y = b.get_other_coordinate (X_AXIS, x);
765 for (set<int>::const_iterator i (dot_positions_.begin ());
766 i != dot_positions_.end (); i++)
769 conf->add_score (details_.dot_collision_penalty_
770 * peak_around (.1 * details_.dot_collision_clearance_,
771 details_.dot_collision_clearance_,
772 fabs (dot_pos * details_.staff_space_ * 0.5 - y)),
778 conf->scored_ = true;
782 Tie_formatting_problem::score_ties_aptitude (Ties_configuration *ties) const
784 if (ties->size () != specifications_.size ())
786 programming_error ("Huh? Mismatch between sizes.");
790 for (vsize i = 0; i < ties->size (); i++)
791 score_aptitude (&ties->at (i), specifications_[i],
796 Tie_formatting_problem::score_ties (Ties_configuration *ties) const
801 score_ties_configuration (ties);
802 score_ties_aptitude (ties);
803 ties->scored_ = true;
807 Tie_formatting_problem::score_ties_configuration (Ties_configuration *ties) const
809 for (vsize i = 0; i < ties->size (); i++)
811 score_configuration (&ties->at (i));
812 ties->add_tie_score (ties->at (i).score (), i, "conf");
815 Real last_edge = 0.0;
816 Real last_center = 0.0;
817 for (vsize i = 0; i < ties->size (); i++)
819 Bezier b (ties->at (i).get_transformed_bezier (details_));
821 Real center = b.curve_point (0.5)[Y_AXIS];
822 Real edge = b.curve_point (0.0)[Y_AXIS];
826 if (edge <= last_edge)
827 ties->add_score (details_.tie_column_monotonicity_penalty_, "monoton edge");
828 if (center <= last_center)
829 ties->add_score (details_.tie_column_monotonicity_penalty_, "monoton cent");
831 ties->add_score (details_.tie_tie_collision_penalty_ *
832 peak_around (0.1 * details_.tie_tie_collision_distance_,
833 details_.tie_tie_collision_distance_,
834 fabs (center - last_center)),
836 ties->add_score (details_.tie_tie_collision_penalty_ *
837 peak_around (0.1 * details_.tie_tie_collision_distance_,
838 details_.tie_tie_collision_distance_,
839 fabs (edge - last_edge)), "tietie edge");
843 last_center = center;
846 if (ties->size () > 1)
848 ties->add_score (details_.outer_tie_length_symmetry_penalty_factor_
849 * fabs (ties->at (0).attachment_x_.length () - ties->back ().attachment_x_.length ()),
852 ties->add_score (details_.outer_tie_vertical_distance_symmetry_penalty_factor_
853 * fabs (fabs (specifications_[0].position_ * 0.5 * details_.staff_space_
854 - (ties->at (0).position_ * 0.5 * details_.staff_space_
855 + ties->at (0).delta_y_))
857 fabs (specifications_.back ().position_ * 0.5 * details_.staff_space_
858 - (ties->back ().position_ * 0.5 * details_.staff_space_
859 + ties->back ().delta_y_))),
865 Generate with correct X-attachments and beziers, copying delta_y_
866 from TIES_CONFIG if necessary.
869 Tie_formatting_problem::generate_ties_configuration (Ties_configuration const &ties_config)
871 Ties_configuration copy;
872 for (vsize i = 0; i < ties_config.size (); i++)
874 Tie_configuration *ptr = get_configuration (ties_config[i].position_, ties_config[i].dir_,
875 ties_config[i].column_ranks_,
876 !specifications_[i].has_manual_delta_y_);
877 if (specifications_[i].has_manual_delta_y_)
880 = (specifications_[i].manual_position_ - ties_config[i].position_)
881 * 0.5 * details_.staff_space_;
883 copy.push_back (*ptr);
890 Tie_formatting_problem::generate_base_chord_configuration ()
892 Ties_configuration ties_config;
893 for (vsize i = 0; i < specifications_.size (); i++)
895 Tie_configuration conf;
896 if (specifications_[i].has_manual_dir_)
897 conf.dir_ = specifications_[i].manual_dir_;
898 if (specifications_[i].has_manual_position_)
900 conf.position_ = (int) my_round (specifications_[i].manual_position_);
901 if (specifications_[i].has_manual_delta_y_)
902 conf.delta_y_ = (specifications_[i].manual_position_ - conf.position_)
903 * 0.5 * details_.staff_space_;
907 conf.position_ = specifications_[i].position_;
910 conf.column_ranks_ = specifications_[i].column_ranks_;
911 ties_config.push_back (conf);
914 set_ties_config_standard_directions (&ties_config);
915 for (vsize i = 0; i < ties_config.size (); i++)
916 if (!specifications_[i].manual_position_)
917 ties_config[i].position_ += ties_config[i].dir_;
919 ties_config = generate_ties_configuration (ties_config);
925 Tie_formatting_problem::find_best_variation (Ties_configuration const &base,
926 vector<Tie_configuration_variation> const &vars)
928 Ties_configuration best = base;
931 This simply is 1-opt: we have K substitions, and we try applying
932 exactly every one for each.
934 for (vsize i = 0; i < vars.size (); i++)
936 Ties_configuration variant (base);
937 for (vsize j = 0; j < vars[i].index_suggestion_pairs_.size (); j++)
938 variant[vars[i].index_suggestion_pairs_[j].first] = *vars[i].index_suggestion_pairs_[j].second;
940 variant.reset_score ();
941 score_ties (&variant);
943 if (variant.score () < best.score ())
953 Tie_formatting_problem::generate_optimal_configuration ()
955 Ties_configuration base = generate_base_chord_configuration ();
958 vector<Tie_configuration_variation> vars;
959 if (specifications_.size () > 1)
960 vars = generate_collision_variations (base);
962 vars = generate_single_tie_variations (base);
964 Ties_configuration best = find_best_variation (base, vars);
966 if (specifications_.size () > 1)
968 vars = generate_extremal_tie_variations (best);
969 best = find_best_variation (best, vars);
975 Tie_formatting_problem::set_ties_config_standard_directions (Ties_configuration *tie_configs)
977 if (tie_configs->empty ())
980 if (!tie_configs->at (0).dir_)
982 if (tie_configs->size () == 1)
983 tie_configs->at (0).dir_ = Direction (sign (tie_configs->at (0).position_));
985 if (!tie_configs->at (0).dir_)
986 tie_configs->at (0).dir_
987 = (tie_configs->size () > 1) ? DOWN : details_.neutral_direction_;
990 if (!tie_configs->back ().dir_)
991 tie_configs->back ().dir_ = UP;
996 for (vsize i = 1; i < tie_configs->size (); i++)
998 Real diff = (tie_configs->at (i).position_
999 - tie_configs->at (i - 1).position_);
1002 = specifications_[i].column_span () - specifications_[i - 1].column_span ();
1003 if (span_diff && fabs (diff) <= 2)
1006 tie_configs->at (i).dir_ = UP;
1007 else if (span_diff < 0)
1008 tie_configs->at (i - 1).dir_ = DOWN;
1010 else if (fabs (diff) <= 1)
1012 if (!tie_configs->at (i - 1).dir_)
1013 tie_configs->at (i - 1).dir_ = DOWN;
1014 if (!tie_configs->at (i).dir_)
1015 tie_configs->at (i).dir_ = UP;
1019 for (vsize i = 1; i + 1 < tie_configs->size (); i++)
1021 Tie_configuration &conf = tie_configs->at (i);
1025 Direction position_dir
1026 = Direction (sign (conf.position_));
1028 position_dir = DOWN;
1030 conf.dir_ = position_dir;
1034 vector<Tie_configuration_variation>
1035 Tie_formatting_problem::generate_extremal_tie_variations (Ties_configuration const &ties) const
1037 vector<Tie_configuration_variation> vars;
1038 for (int i = 1; i <= details_.multi_tie_region_size_; i++)
1040 Drul_array<Tie_configuration *> configs (0, 0);
1041 for (DOWN_and_UP (d))
1043 const Tie_configuration &config = boundary (ties, d, 0);
1044 if (config.dir_ == d
1045 && !boundary (specifications_, d, 0).has_manual_position_)
1047 Tie_configuration_variation var;
1048 configs[d] = get_configuration (config.position_ + d * i, d,
1049 config.column_ranks_,
1051 var.add_suggestion ((d == DOWN) ? 0 : ties.size () - 1,
1053 vars.push_back (var);
1056 if (configs[LEFT] && configs[RIGHT])
1058 Tie_configuration_variation var;
1059 var.add_suggestion (0, configs[DOWN]);
1060 var.add_suggestion (ties.size () - 1, configs[UP]);
1061 vars.push_back (var);
1068 vector<Tie_configuration_variation>
1069 Tie_formatting_problem::generate_single_tie_variations (Ties_configuration const &ties) const
1071 vector<Tie_configuration_variation> vars;
1073 int sz = details_.single_tie_region_size_;
1074 if (specifications_[0].has_manual_position_)
1076 for (int i = 0; i < sz; i++)
1078 for (LEFT_and_RIGHT (d))
1081 && ties[0].dir_ == d)
1084 int p = ties[0].position_ + i * d;
1086 if (!specifications_[0].has_manual_dir_
1087 || d == specifications_[0].manual_dir_)
1089 Tie_configuration_variation var;
1090 var.add_suggestion (0,
1091 get_configuration (p,
1092 d, specifications_[0].column_ranks_,
1093 !specifications_[0].has_manual_delta_y_));
1094 vars.push_back (var);
1101 vector<Tie_configuration_variation>
1102 Tie_formatting_problem::generate_collision_variations (Ties_configuration const &ties) const
1104 Real center_distance_tolerance = 0.25;
1106 vector<Tie_configuration_variation> vars;
1107 Real last_center = 0.0;
1108 for (vsize i = 0; i < ties.size (); i++)
1110 Bezier b (ties[i].get_transformed_bezier (details_));
1112 Real center = b.curve_point (0.5)[Y_AXIS];
1116 if (center <= last_center + center_distance_tolerance)
1118 if (!specifications_[i].has_manual_dir_)
1120 Tie_configuration_variation var;
1121 var.add_suggestion (i,
1122 get_configuration (specifications_[i].position_
1126 ties[i].column_ranks_,
1127 !specifications_[i].has_manual_delta_y_
1130 vars.push_back (var);
1133 if (!specifications_[i - 1].has_manual_dir_)
1135 Tie_configuration_variation var;
1136 var.add_suggestion (i - 1,
1137 get_configuration (specifications_[i - 1].position_
1140 specifications_[i - 1].column_ranks_,
1141 !specifications_[i - 1].has_manual_delta_y_));
1143 vars.push_back (var);
1146 if (i == 1 && !specifications_[i - 1].has_manual_position_
1147 && ties[i - 1].dir_ == DOWN)
1149 Tie_configuration_variation var;
1150 var.add_suggestion (i - 1,
1151 get_configuration (specifications_[i - 1].position_ - 1, DOWN,
1152 specifications_[i - 1].column_ranks_,
1153 !specifications_[i - 1].has_manual_delta_y_
1155 vars.push_back (var);
1157 if (i == ties.size () && !specifications_[i].has_manual_position_
1158 && ties[i].dir_ == UP)
1160 Tie_configuration_variation var;
1161 var.add_suggestion (i,
1162 get_configuration (specifications_[i].position_
1164 specifications_[i].column_ranks_,
1165 !specifications_[i].has_manual_delta_y_
1167 vars.push_back (var);
1170 else if (dot_positions_.find (ties[i].position_) != dot_positions_.end ()
1171 && !specifications_[i].has_manual_position_)
1173 Tie_configuration_variation var;
1174 var.add_suggestion (i,
1175 get_configuration (ties[i].position_ + ties[i].dir_,
1177 ties[i].column_ranks_,
1178 !specifications_[i].has_manual_delta_y_
1180 vars.push_back (var);
1185 last_center = center;
1192 Tie_formatting_problem::set_manual_tie_configuration (SCM manual_configs)
1195 for (SCM s = manual_configs;
1196 scm_is_pair (s) && k < specifications_.size (); s = scm_cdr (s))
1198 SCM entry = scm_car (s);
1199 if (scm_is_pair (entry))
1201 Tie_specification &spec = specifications_[k];
1203 if (scm_is_number (scm_car (entry)))
1205 spec.has_manual_position_ = true;
1206 spec.manual_position_ = scm_to_double (scm_car (entry));
1207 /* TODO: check whether inexact? is an appropriate condition here */
1208 spec.has_manual_delta_y_ = (scm_is_true (scm_inexact_p (scm_car (entry))));
1211 if (scm_is_number (scm_cdr (entry)))
1213 spec.has_manual_dir_ = true;
1214 spec.manual_dir_ = Direction (scm_to_int (scm_cdr (entry)));
1222 Tie_formatting_problem::set_debug_scoring (Ties_configuration const &base)
1224 #if DEBUG_TIE_SCORING
1225 if (to_boolean (x_refpoint_->layout ()
1226 ->lookup_variable (ly_symbol2scm ("debug-tie-scoring"))))
1228 for (vsize i = 0; i < base.size (); i++)
1230 string card = base.complete_tie_card (i);
1231 specifications_[i].tie_grob_->set_property ("annotation",
1232 ly_string2scm (card));