2 This file is part of LilyPond, the GNU music typesetter.
4 Copyright (C) 2005--2011 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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12 LilyPond is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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::stem_end_position (stem) * staff_space * .5;
154 stem_end_position = Stem::note_head_positions (stem)[get_grob_direction (stem)]
158 y.add_point (stem_end_position);
160 Direction stemdir = get_grob_direction (stem);
161 y.add_point (Stem::head_positions (stem)[-stemdir]
167 boxes.push_back (Box (x, y));
169 stem_extents_[key].unite (Box (x, y));
173 Box flag_box = Stem::get_translated_flag (stem).extent_box ();
174 flag_box.translate ( Offset (x[RIGHT], X_AXIS));
175 boxes.push_back (flag_box);
180 Grob *head = Stem::support_head (stem);
183 In case of invisible stem, don't pass x-center of heads.
185 Real x_center = head->extent (x_refpoint_, X_AXIS).center ();
187 x_ext[-dir] = x_center;
188 x_ext[dir] = infinity_f * dir;
190 for (vsize j = 0; j < head_boxes.size (); j++)
191 y_ext.unite (head_boxes[j][Y_AXIS]);
193 boxes.push_back (Box (x_ext, y_ext));
196 extract_grob_set (stem, "note-heads", heads);
197 for (vsize i = 0; i < heads.size (); i++)
199 if (find (bounds.begin (), bounds.end (), dynamic_cast<Item *> (heads[i])) == bounds.end ())
202 other untied notes in the same chord.
205 Interval y = Staff_symbol_referencer::extent_in_staff (heads[i]);
206 Interval x = heads[i]->extent (x_refpoint_, X_AXIS);
207 boxes.push_back (Box (x, y));
210 Grob *acc = unsmob_grob (heads[i]->get_object ("accidental-grob"));
212 acc->get_property ("stencil"); /* trigger tie-related suicide */
214 if (acc && acc->is_live () && dir == RIGHT)
216 boxes.push_back (Box (acc->extent (x_refpoint_, X_AXIS),
217 Staff_symbol_referencer::extent_in_staff (acc)));
220 head_positions_[column_rank].add_point (int (Staff_symbol_referencer::get_position (heads[i])));
225 Direction updowndir = DOWN;
230 if (head_boxes.size ())
232 Box b = boundary (head_boxes, updowndir, 0);
234 x[-dir] = b[X_AXIS].linear_combination (-dir / 2);
235 y[-updowndir] = b[Y_AXIS][updowndir];
236 y[updowndir] = updowndir * infinity_f;
240 boxes.push_back (Box (x, y));
242 while (flip (&updowndir) != DOWN);
244 /* todo: the horizon_padding is somewhat arbitrary */
245 chord_outlines_[key] = Skyline (boxes, details_.skyline_padding_, Y_AXIS, -dir);
246 if (bounds[0]->break_status_dir ())
248 Interval iv (Axis_group_interface::staff_extent (bounds[0], x_refpoint_, X_AXIS, y_refpoint_, Y_AXIS));
250 iv.add_point (bounds[0]->relative_coordinate (x_refpoint_, X_AXIS));
252 chord_outlines_[key].set_minimum_height (iv[-dir]);
257 for (vsize j = 0; j < head_boxes.size (); j++)
259 x.unite (head_boxes[j][X_AXIS]);
262 chord_outlines_[key].set_minimum_height (x[dir]);
265 head_extents_[key].set_empty ();
266 for (vsize i = 0; i < head_boxes.size (); i++)
268 head_extents_[key].unite (head_boxes[i]);
273 Tie_formatting_problem::set_chord_outline (vector<Item *> bounds,
278 for (vsize i = 0; i < bounds.size (); i++)
279 ranks.push_back (bounds[i]->get_column ()->get_rank ());
281 vector_sort (ranks, less<int> ());
284 for (vsize i = 0; i < ranks.size (); i++)
286 vector<Item *> col_items;
287 for (vsize j = 0; j < bounds.size (); j++)
289 if (bounds[j]->get_column ()->get_rank () == ranks[i])
290 col_items.push_back (bounds[j]);
293 set_column_chord_outline (col_items, dir, ranks[i]);
298 Tie_formatting_problem::from_tie (Grob *tie)
301 ties.push_back (tie);
304 details_.from_grob (tie);
308 Tie_formatting_problem::common_x_refpoint () const
314 Tie_formatting_problem::from_ties (vector<Grob *> const &ties)
319 x_refpoint_ = ties[0];
320 y_refpoint_ = ties[0];
321 for (vsize i = 0; i < ties.size (); i++)
323 Spanner *tie = dynamic_cast<Spanner *> (ties[i]);
324 Item *l = tie->get_bound (LEFT);
325 Item *r = tie->get_bound (RIGHT);
327 x_refpoint_ = l->common_refpoint (x_refpoint_, X_AXIS);
328 x_refpoint_ = r->common_refpoint (x_refpoint_, X_AXIS);
330 if (!l->break_status_dir ())
331 y_refpoint_ = l->common_refpoint (y_refpoint_, Y_AXIS);
332 if (!r->break_status_dir ())
333 y_refpoint_ = r->common_refpoint (y_refpoint_, Y_AXIS);
336 details_.from_grob (ties[0]);
341 vector<Item *> bounds;
343 for (vsize i = 0; i < ties.size (); i++)
345 Item *it = dynamic_cast<Spanner *> (ties[i])->get_bound (d);
346 if (it->break_status_dir ())
347 it = it->get_column ();
349 bounds.push_back (it);
352 set_chord_outline (bounds, d);
354 while (flip (&d) != LEFT);
356 for (vsize i = 0; i < ties.size (); i++)
358 Tie_specification spec;
359 spec.from_grob (ties[i]);
363 spec.note_head_drul_[d] = Tie::head (ties[i], d);
364 spec.column_ranks_[d] = Tie::get_column_rank (ties[i], d);
366 while (flip (&d) != LEFT);
367 specifications_.push_back (spec);
372 Tie_formatting_problem::from_semi_ties (vector<Grob *> const &semi_ties, Direction head_dir)
374 if (semi_ties.empty ())
377 use_horizontal_spacing_ = false;
378 details_.from_grob (semi_ties[0]);
379 vector<Item *> heads;
381 int column_rank = -1;
382 for (vsize i = 0; i < semi_ties.size (); i++)
384 Tie_specification spec;
385 Item *head = unsmob_item (semi_ties[i]->get_object ("note-head"));
388 programming_error ("LV tie without head?!");
392 spec.position_ = int (Staff_symbol_referencer::get_position (head));
395 spec.from_grob (semi_ties[i]);
397 spec.note_head_drul_[head_dir] = head;
398 column_rank = Tie::get_column_rank (semi_ties[i], head_dir);
399 spec.column_ranks_ = Drul_array<int> (column_rank, column_rank);
400 heads.push_back (head);
401 specifications_.push_back (spec);
404 x_refpoint_ = semi_ties[0];
405 y_refpoint_ = semi_ties[0];
407 for (vsize i = 0; i < semi_ties.size (); i++)
409 x_refpoint_ = semi_ties[i]->common_refpoint (x_refpoint_, X_AXIS);
410 y_refpoint_ = semi_ties[i]->common_refpoint (y_refpoint_, Y_AXIS);
412 for (vsize i = 0; i < heads.size (); i++)
414 x_refpoint_ = heads[i]->common_refpoint (x_refpoint_, X_AXIS);
415 y_refpoint_ = heads[i]->common_refpoint (y_refpoint_, Y_AXIS);
418 set_chord_outline (heads, head_dir);
420 Tuple2<int> head_key (column_rank, head_dir);
421 Tuple2<int> open_key (column_rank, -head_dir);
422 Real extremal = chord_outlines_[head_key].max_height ();
424 chord_outlines_[open_key] = Skyline (head_dir);
425 chord_outlines_[open_key].set_minimum_height (extremal - head_dir * 1.5);
429 Tie_formatting_problem::get_tie_specification (int i) const
431 return specifications_[i];
435 Return configuration, create it if necessary.
438 Tie_formatting_problem::get_configuration (int pos, Direction dir, Drul_array<int> columns,
441 int key_components[] =
443 pos, dir, columns[LEFT], columns[RIGHT]
445 Tuple<int, 4> key (key_components);
447 Tie_configuration_map::const_iterator f = possibilities_.find (key);
448 if (f != possibilities_.end ())
453 Tie_configuration *conf = generate_configuration (pos, dir, columns, tune_dy);
454 ((Tie_formatting_problem *) this)->possibilities_[key] = conf;
459 Tie_formatting_problem::generate_configuration (int pos, Direction dir,
460 Drul_array<int> columns, bool y_tune) const
462 Tie_configuration *conf = new Tie_configuration;
463 conf->position_ = pos;
466 conf->column_ranks_ = columns;
468 Real y = conf->position_ * 0.5 * details_.staff_space_;
470 if (dot_positions_.find (pos) != dot_positions_.end ())
472 conf->delta_y_ += dir * 0.25 * details_.staff_space_;
477 && max (fabs (get_head_extent (columns[LEFT], LEFT, Y_AXIS)[dir] - y),
478 fabs (get_head_extent (columns[RIGHT], RIGHT, Y_AXIS)[dir] - y)) < 0.25
479 && !Staff_symbol_referencer::on_line (details_.staff_symbol_referencer_, pos))
482 = (get_head_extent (columns[LEFT], LEFT, Y_AXIS)[dir] - y)
483 + dir * details_.outer_tie_vertical_gap_;
488 conf->attachment_x_ = get_attachment (y + conf->delta_y_, conf->column_ranks_);
489 Real h = conf->height (details_);
494 - should make sliding criterion, should flatten ties if
496 - they're just the wrong (ie. touching line at top & bottom)
500 if (head_positions_slice (columns[LEFT]).contains (pos)
501 || head_positions_slice (columns[RIGHT]).contains (pos)
502 || abs (pos) < 2 * Staff_symbol_referencer::staff_radius (details_.staff_symbol_referencer_))
504 if (h < details_.intra_space_threshold_ * 0.5 * details_.staff_space_)
506 if (!Staff_symbol_referencer::on_line (details_.staff_symbol_referencer_, pos)
507 && abs (pos) < 2 * Staff_symbol_referencer::staff_radius (details_.staff_symbol_referencer_))
509 conf->center_tie_vertically (details_);
511 else if (Staff_symbol_referencer::on_line (details_.staff_symbol_referencer_, pos))
513 conf->delta_y_ += dir *
514 details_.tip_staff_line_clearance_ * 0.5 * details_.staff_space_;
519 Real top_y = y + conf->delta_y_ + conf->dir_ * h;
520 Real top_pos = top_y / (0.5 * details_.staff_space_);
521 int round_pos = int (my_round (top_pos));
523 /* TODO: should use other variable? */
524 Real clearance = details_.center_staff_line_clearance_;
525 if (fabs (top_pos - round_pos) < clearance
526 && Staff_symbol_referencer::on_staff_line (details_.staff_symbol_referencer_,
529 Real new_y = (round_pos + clearance * conf->dir_) * 0.5 * details_.staff_space_;
530 conf->delta_y_ = (new_y - top_y);
535 conf->attachment_x_ = get_attachment (y + conf->delta_y_, conf->column_ranks_);
536 if (conf->height (details_) < details_.intra_space_threshold_ * 0.5 * details_.staff_space_)
539 This is less sensible for long ties, since those are more
542 Interval close_by = get_attachment (y
544 + (dir * details_.intra_space_threshold_ * 0.25
545 * details_.staff_space_),
546 conf->column_ranks_);
548 conf->attachment_x_.intersect (close_by);
551 conf->attachment_x_.widen ( - details_.x_gap_);
553 if (conf->column_span_length ())
556 avoid the stems that we attach to as well. We don't do this
557 for semities (span length = 0)
559 It would be better to check D against HEAD-DIRECTION if
565 Real y = conf->position_ * details_.staff_space_ * 0.5 + conf->delta_y_;
566 if (get_stem_extent (conf->column_ranks_[d], d, X_AXIS).is_empty ()
567 || !get_stem_extent (conf->column_ranks_[d], d, Y_AXIS).contains (y))
570 conf->attachment_x_[d]
571 = d * min (d * conf->attachment_x_[d],
572 d * (get_stem_extent (conf->column_ranks_[d], d, X_AXIS)[-d] - d * details_.stem_gap_));
574 while (flip (&d) != LEFT);
580 Tie_formatting_problem::get_head_extent (int col, Direction d, Axis a) const
582 Column_extent_map::const_iterator i = head_extents_.find (Tuple2<int> (col, int (d)));
583 if (i != head_extents_.end ())
584 return (*i).second[a];
590 Tie_formatting_problem::get_stem_extent (int col, Direction d, Axis a) const
592 Column_extent_map::const_iterator i = stem_extents_.find (Tuple2<int> (col, int (d)));
593 if (i != stem_extents_.end ())
594 return (*i).second[a];
600 TIE_IDX and TIES_CONF are optional.
603 Tie_formatting_problem::score_aptitude (Tie_configuration *conf,
604 Tie_specification const &spec,
605 Ties_configuration *ties_conf, int tie_idx) const
608 Real curve_y = conf->position_ * details_.staff_space_ * 0.5 + conf->delta_y_;
609 Real tie_y = spec.position_ * details_.staff_space_ * 0.5;
610 if (sign (curve_y - tie_y) != conf->dir_)
612 Real p = details_.wrong_direction_offset_penalty_;
614 ties_conf->add_tie_score (p, tie_idx, "wrong dir");
620 Real relevant_dist = max (fabs (curve_y - tie_y) - 0.5, 0.0);
621 Real p = details_.vertical_distance_penalty_factor_ * convex_amplifier (1.0, 0.9, relevant_dist);
623 ties_conf->add_tie_score (p, tie_idx, "vdist");
631 if (!spec.note_head_drul_[d])
634 Interval head_x = spec.note_head_drul_[d]->extent (x_refpoint_, X_AXIS);
635 Real dist = head_x.distance (conf->attachment_x_[d]);
638 TODO: flatten with log or sqrt.
640 Real p = details_.horizontal_distance_penalty_factor_
641 * convex_amplifier (1.25, 1.0, dist);
643 ties_conf->add_tie_score (p, tie_idx,
644 (d == LEFT) ? "lhdist" : "rhdist");
649 while (flip (&d) != LEFT);
652 && ties_conf->size () == 1)
655 Drul_array<Grob *> stems (0, 0);
658 if (!spec.note_head_drul_[d])
661 Grob *stem = unsmob_grob (spec.note_head_drul_[d]->get_object ("stem"));
663 && Stem::is_normal_stem (stem))
666 while (flip (&d) != LEFT);
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);
727 if (Staff_symbol_referencer::on_line (details_.staff_symbol_referencer_,
729 && Staff_symbol_referencer::staff_radius (details_.staff_symbol_referencer_) > top_y)
731 conf->add_score (details_.staff_line_collision_penalty_
732 * peak_around (0.1 * details_.center_staff_line_clearance_,
733 details_.center_staff_line_clearance_,
734 fabs (top_pos - round_top_pos)),
738 int rounded_tip_pos = int (rint (tip_pos));
739 if (Staff_symbol_referencer::on_line (details_.staff_symbol_referencer_, rounded_tip_pos)
740 && (head_positions_slice (conf->column_ranks_[LEFT]).contains (rounded_tip_pos)
741 || head_positions_slice (conf->column_ranks_[RIGHT]).contains (rounded_tip_pos)
742 || abs (rounded_tip_pos) < 2 * Staff_symbol_referencer::staff_radius (details_.staff_symbol_referencer_))
745 conf->add_score (details_.staff_line_collision_penalty_
746 * peak_around (0.1 * details_.tip_staff_line_clearance_,
747 details_.tip_staff_line_clearance_,
748 fabs (tip_pos - rint (tip_pos))),
752 if (!dot_x_.is_empty ())
755 Real x = dot_x_.center ();
757 Bezier b = conf->get_transformed_bezier (details_);
758 if (b.control_point_extent (X_AXIS).contains (x))
760 Real y = b.get_other_coordinate (X_AXIS, x);
762 for (set<int>::const_iterator i (dot_positions_.begin ());
763 i != dot_positions_.end (); i++)
766 conf->add_score (details_.dot_collision_penalty_
767 * peak_around (.1 * details_.dot_collision_clearance_,
768 details_.dot_collision_clearance_,
769 fabs (dot_pos * details_.staff_space_ * 0.5 - y)),
775 conf->scored_ = true;
779 Tie_formatting_problem::score_ties_aptitude (Ties_configuration *ties) const
781 if (ties->size () != specifications_.size ())
783 programming_error ("Huh? Mismatch between sizes.");
787 for (vsize i = 0; i < ties->size (); i++)
788 score_aptitude (&ties->at (i), specifications_[i],
793 Tie_formatting_problem::score_ties (Ties_configuration *ties) const
798 score_ties_configuration (ties);
799 score_ties_aptitude (ties);
800 ties->scored_ = true;
804 Tie_formatting_problem::score_ties_configuration (Ties_configuration *ties) const
806 for (vsize i = 0; i < ties->size (); i++)
808 score_configuration (&ties->at (i));
809 ties->add_tie_score (ties->at (i).score (), i, "conf");
812 Real last_edge = 0.0;
813 Real last_center = 0.0;
814 for (vsize i = 0; i < ties->size (); i++)
816 Bezier b (ties->at (i).get_transformed_bezier (details_));
818 Real center = b.curve_point (0.5)[Y_AXIS];
819 Real edge = b.curve_point (0.0)[Y_AXIS];
823 if (edge <= last_edge)
824 ties->add_score (details_.tie_column_monotonicity_penalty_, "monoton edge");
825 if (center <= last_center)
826 ties->add_score (details_.tie_column_monotonicity_penalty_, "monoton cent");
828 ties->add_score (details_.tie_tie_collision_penalty_ *
829 peak_around (0.1 * details_.tie_tie_collision_distance_,
830 details_.tie_tie_collision_distance_,
831 fabs (center - last_center)),
833 ties->add_score (details_.tie_tie_collision_penalty_ *
834 peak_around (0.1 * details_.tie_tie_collision_distance_,
835 details_.tie_tie_collision_distance_,
836 fabs (edge - last_edge)), "tietie edge");
840 last_center = center;
843 if (ties->size () > 1)
845 ties->add_score (details_.outer_tie_length_symmetry_penalty_factor_
846 * fabs (ties->at (0).attachment_x_.length () - ties->back ().attachment_x_.length ()),
849 ties->add_score (details_.outer_tie_vertical_distance_symmetry_penalty_factor_
850 * fabs (fabs (specifications_[0].position_ * 0.5 * details_.staff_space_
851 - (ties->at (0).position_ * 0.5 * details_.staff_space_
852 + ties->at (0).delta_y_))
854 fabs (specifications_.back ().position_ * 0.5 * details_.staff_space_
855 - (ties->back ().position_ * 0.5 * details_.staff_space_
856 + ties->back ().delta_y_))),
862 Generate with correct X-attachments and beziers, copying delta_y_
863 from TIES_CONFIG if necessary.
866 Tie_formatting_problem::generate_ties_configuration (Ties_configuration const &ties_config)
868 Ties_configuration copy;
869 for (vsize i = 0; i < ties_config.size (); i++)
871 Tie_configuration *ptr = get_configuration (ties_config[i].position_, ties_config[i].dir_,
872 ties_config[i].column_ranks_,
873 !specifications_[i].has_manual_delta_y_);
874 if (specifications_[i].has_manual_delta_y_)
877 = (specifications_[i].manual_position_ - ties_config[i].position_)
878 * 0.5 * details_.staff_space_;
880 copy.push_back (*ptr);
887 Tie_formatting_problem::generate_base_chord_configuration ()
889 Ties_configuration ties_config;
890 for (vsize i = 0; i < specifications_.size (); i++)
892 Tie_configuration conf;
893 if (specifications_[i].has_manual_dir_)
894 conf.dir_ = specifications_[i].manual_dir_;
895 if (specifications_[i].has_manual_position_)
897 conf.position_ = (int) my_round (specifications_[i].manual_position_);
898 if (specifications_[i].has_manual_delta_y_)
899 conf.delta_y_ = (specifications_[i].manual_position_ - conf.position_)
900 * 0.5 * details_.staff_space_;
904 conf.position_ = specifications_[i].position_;
907 conf.column_ranks_ = specifications_[i].column_ranks_;
908 ties_config.push_back (conf);
911 set_ties_config_standard_directions (&ties_config);
912 for (vsize i = 0; i < ties_config.size (); i++)
913 if (!specifications_[i].manual_position_)
914 ties_config[i].position_ += ties_config[i].dir_;
916 ties_config = generate_ties_configuration (ties_config);
922 Tie_formatting_problem::find_best_variation (Ties_configuration const &base,
923 vector<Tie_configuration_variation> const &vars)
925 Ties_configuration best = base;
928 This simply is 1-opt: we have K substitions, and we try applying
929 exactly every one for each.
931 for (vsize i = 0; i < vars.size (); i++)
933 Ties_configuration variant (base);
934 for (vsize j = 0; j < vars[i].index_suggestion_pairs_.size (); j++)
935 variant[vars[i].index_suggestion_pairs_[j].first] = *vars[i].index_suggestion_pairs_[j].second;
937 variant.reset_score ();
938 score_ties (&variant);
940 if (variant.score () < best.score ())
950 Tie_formatting_problem::generate_optimal_configuration ()
952 Ties_configuration base = generate_base_chord_configuration ();
955 vector<Tie_configuration_variation> vars;
956 if (specifications_.size () > 1)
957 vars = generate_collision_variations (base);
959 vars = generate_single_tie_variations (base);
961 Ties_configuration best = find_best_variation (base, vars);
963 if (specifications_.size () > 1)
965 vars = generate_extremal_tie_variations (best);
966 best = find_best_variation (best, vars);
972 Tie_formatting_problem::set_ties_config_standard_directions (Ties_configuration *tie_configs)
974 if (tie_configs->empty ())
977 if (!tie_configs->at (0).dir_)
979 if (tie_configs->size () == 1)
980 tie_configs->at (0).dir_ = Direction (sign (tie_configs->at (0).position_));
982 if (!tie_configs->at (0).dir_)
983 tie_configs->at (0).dir_
984 = (tie_configs->size () > 1) ? DOWN : details_.neutral_direction_;
987 if (!tie_configs->back ().dir_)
988 tie_configs->back ().dir_ = UP;
993 for (vsize i = 1; i < tie_configs->size (); i++)
995 Real diff = (tie_configs->at (i).position_
996 - tie_configs->at (i - 1).position_);
999 = specifications_[i].column_span () - specifications_[i - 1].column_span ();
1000 if (span_diff && fabs (diff) <= 2)
1003 tie_configs->at (i).dir_ = UP;
1004 else if (span_diff < 0)
1005 tie_configs->at (i - 1).dir_ = DOWN;
1007 else if (fabs (diff) <= 1)
1009 if (!tie_configs->at (i - 1).dir_)
1010 tie_configs->at (i - 1).dir_ = DOWN;
1011 if (!tie_configs->at (i).dir_)
1012 tie_configs->at (i).dir_ = UP;
1016 for (vsize i = 1; i + 1 < tie_configs->size (); i++)
1018 Tie_configuration &conf = tie_configs->at (i);
1022 Direction position_dir
1023 = Direction (sign (conf.position_));
1025 position_dir = DOWN;
1027 conf.dir_ = position_dir;
1031 vector<Tie_configuration_variation>
1032 Tie_formatting_problem::generate_extremal_tie_variations (Ties_configuration const &ties) const
1034 vector<Tie_configuration_variation> vars;
1036 for (int i = 1; i <= details_.multi_tie_region_size_; i++)
1038 Drul_array<Tie_configuration *> configs (0, 0);
1041 const Tie_configuration &config = boundary (ties, d, 0);
1042 if (config.dir_ == d
1043 && !boundary (specifications_, d, 0).has_manual_position_)
1045 Tie_configuration_variation var;
1046 configs[d] = get_configuration (config.position_ + d * i, d,
1047 config.column_ranks_,
1049 var.add_suggestion ((d == DOWN) ? 0 : ties.size () - 1,
1051 vars.push_back (var);
1054 while (flip (&d) != DOWN);
1055 if (configs[LEFT] && configs[RIGHT])
1057 Tie_configuration_variation var;
1058 var.add_suggestion (0, configs[DOWN]);
1059 var.add_suggestion (ties.size () - 1, configs[UP]);
1060 vars.push_back (var);
1067 vector<Tie_configuration_variation>
1068 Tie_formatting_problem::generate_single_tie_variations (Ties_configuration const &ties) const
1070 vector<Tie_configuration_variation> vars;
1072 int sz = details_.single_tie_region_size_;
1073 if (specifications_[0].has_manual_position_)
1075 for (int i = 0; i < sz; i++)
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);
1097 while (flip (&d) != LEFT);
1102 vector<Tie_configuration_variation>
1103 Tie_formatting_problem::generate_collision_variations (Ties_configuration const &ties) const
1105 Real center_distance_tolerance = 0.25;
1107 vector<Tie_configuration_variation> vars;
1108 Real last_center = 0.0;
1109 for (vsize i = 0; i < ties.size (); i++)
1111 Bezier b (ties[i].get_transformed_bezier (details_));
1113 Real center = b.curve_point (0.5)[Y_AXIS];
1117 if (center <= last_center + center_distance_tolerance)
1119 if (!specifications_[i].has_manual_dir_)
1121 Tie_configuration_variation var;
1122 var.add_suggestion (i,
1123 get_configuration (specifications_[i].position_
1127 ties[i].column_ranks_,
1128 !specifications_[i].has_manual_delta_y_
1131 vars.push_back (var);
1134 if (!specifications_[i - 1].has_manual_dir_)
1136 Tie_configuration_variation var;
1137 var.add_suggestion (i - 1,
1138 get_configuration (specifications_[i - 1].position_
1141 specifications_[i - 1].column_ranks_,
1142 !specifications_[i - 1].has_manual_delta_y_));
1144 vars.push_back (var);
1147 if (i == 1 && !specifications_[i - 1].has_manual_position_
1148 && ties[i - 1].dir_ == DOWN)
1150 Tie_configuration_variation var;
1151 var.add_suggestion (i - 1,
1152 get_configuration (specifications_[i - 1].position_ - 1, DOWN,
1153 specifications_[i - 1].column_ranks_,
1154 !specifications_[i - 1].has_manual_delta_y_
1156 vars.push_back (var);
1158 if (i == ties.size () && !specifications_[i].has_manual_position_
1159 && ties[i].dir_ == UP)
1161 Tie_configuration_variation var;
1162 var.add_suggestion (i,
1163 get_configuration (specifications_[i].position_
1165 specifications_[i].column_ranks_,
1166 !specifications_[i].has_manual_delta_y_
1168 vars.push_back (var);
1171 else if (dot_positions_.find (ties[i].position_) != dot_positions_.end ()
1172 && !specifications_[i].has_manual_position_)
1174 Tie_configuration_variation var;
1175 var.add_suggestion (i,
1176 get_configuration (ties[i].position_ + ties[i].dir_,
1178 ties[i].column_ranks_,
1179 !specifications_[i].has_manual_delta_y_
1181 vars.push_back (var);
1186 last_center = center;
1193 Tie_formatting_problem::set_manual_tie_configuration (SCM manual_configs)
1196 for (SCM s = manual_configs;
1197 scm_is_pair (s) && k < specifications_.size (); s = scm_cdr (s))
1199 SCM entry = scm_car (s);
1200 if (scm_is_pair (entry))
1202 Tie_specification &spec = specifications_[k];
1204 if (scm_is_number (scm_car (entry)))
1206 spec.has_manual_position_ = true;
1207 spec.manual_position_ = scm_to_double (scm_car (entry));
1208 spec.has_manual_delta_y_ = (scm_inexact_p (scm_car (entry)) == SCM_BOOL_T);
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));