/*
- tie-formatting-problem.cc -- implement Tie_formatting_problem6
+ tie-formatting-problem.cc -- implement Tie_formatting_problem
source file of the GNU LilyPond music typesetter
- (c) 2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
+ (c) 2005--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
*/
#include "tie-formatting-problem.hh"
+#include "paper-column.hh"
+#include "bezier.hh"
#include "directional-element-interface.hh"
+#include "item.hh"
+#include "libc-extension.hh"
+#include "misc.hh"
+#include "note-head.hh"
+#include "rhythmic-head.hh"
+#include "spanner.hh"
#include "staff-symbol-referencer.hh"
+#include "stem.hh"
+#include "tie-configuration.hh"
#include "tie.hh"
+#include "warn.hh"
-#include "item.hh"
-#include "spanner.hh"
-#include "stem.hh"
-#include "note-head.hh"
-#include "rhythmic-head.hh"
+void
+Tie_formatting_problem::print_ties_configuration (Ties_configuration const *ties)
+{
+ for (vsize i = 0; i < ties->size (); i++)
+ {
+ char const *man_pos = (specifications_[i].has_manual_position_) ? "(M)" : "";
+ char const *man_dir = (specifications_[i].has_manual_dir_) ? "(M)" : "";
+ char const *dir = (ties->at (i).dir_ == UP) ? "up" : "dn";
+
+ printf ("(P%d%s, %s%s) ", ties->at (i).position_, man_pos, dir, man_dir);
+ }
+ printf ("\n");
+}
Interval
-Tie_formatting_problem::get_attachment (Real y) const
+Tie_formatting_problem::get_attachment (Real y, Drul_array<int> columns) const
{
- Interval attachments;
+ Interval attachments (0,0);
Direction d = LEFT;
do
{
- attachments[d] = skyline_height (chord_outlines_[d], y, -d);
+ Tuple2<int> key (columns[d], int (d));
+ Chord_outline_map::const_iterator i (chord_outlines_.find (key));
+ if (i == chord_outlines_.end ())
+ programming_error ("Can't find chord outline");
+ else
+ attachments[d] = skyline_height ((*i).second, y, -d);
}
while (flip (&d) != LEFT);
return attachments;
}
-
-
-
Tie_formatting_problem::Tie_formatting_problem()
{
x_refpoint_ = 0;
-
+}
+
+Tie_formatting_problem::~Tie_formatting_problem ()
+{
+ for (Tie_configuration_map::const_iterator i (possibilities_.begin ());
+ i != possibilities_.end (); i++)
+ delete (*i).second;
}
void
-Tie_formatting_problem::set_chord_outline (Link_array<Item> bounds,
- Direction d)
+Tie_formatting_problem::set_column_chord_outline (vector<Item*> bounds,
+ Direction dir,
+ int column_rank)
{
Real staff_space = Staff_symbol_referencer::staff_space (bounds[0]);
- Array<Box> boxes;
+ vector<Box> boxes;
+ vector<Box> head_boxes;
Grob *stem = 0;
- for (int i = 0; i < bounds.size (); i++)
+ for (vsize i = 0; i < bounds.size (); i++)
{
Grob *head = bounds[i];
if (!Note_head::has_interface (head))
continue;
-
+
if (!stem)
stem = unsmob_grob (head->get_object ("stem"));
(p+1) * 0.5 * staff_space);
Interval x = head->extent (x_refpoint_, X_AXIS);
- boxes.push (Box (x, y));
+ head_boxes.push_back (Box (x, y));
+ boxes.push_back (Box (x, y));
Grob *dots = Rhythmic_head::get_dots (head);
- if (d == LEFT && dots)
+ if (dir == LEFT && dots)
{
Interval x = dots->extent (x_refpoint_, X_AXIS);
- Interval y (-0.5, 0.5);
- y.translate (Staff_symbol_referencer::get_position (dots));
- y *= staff_space * 0.5;
+ int p = int (Staff_symbol_referencer::get_position (dots));
+
+ dot_positions_.insert (p);
+ dot_x_.unite (x);
+
+ Interval y (dots->extent (dots, Y_AXIS));
+ y.translate (p * staff_space * 0.5);
- boxes.push (Box (x, y));
+ boxes.push_back (Box (x, y));
}
}
- chord_outlines_[d] = empty_skyline (-d);
-
+ Tuple2<int> key (column_rank, int (dir));
+
+ chord_outlines_[key] = empty_skyline (-dir);
+
if (bounds[0]->break_status_dir ())
{
- Real x = robust_relative_extent (bounds[0], x_refpoint_, X_AXIS)[-d];
- chord_outlines_[d].elem_ref (0).height_ = x;
+ Real x = robust_relative_extent (bounds[0], x_refpoint_, X_AXIS)[-dir];
+ chord_outlines_[key].at (0).height_ = x;
}
-
- for (int i = 0; i < boxes.size (); i++)
- insert_extent_into_skyline (&chord_outlines_[d] ,
- boxes[i], Y_AXIS, -d);
+ else
+ {
+ Interval x;
+ for (vsize j = 0; j < head_boxes.size (); j++)
+ {
+ x.unite (head_boxes[j][X_AXIS]);
+ }
+
+ chord_outlines_[key].at (0).height_ = x[dir];
+ }
+
+ for (vsize i = 0; i < boxes.size (); i++)
+ insert_extent_into_skyline (&chord_outlines_[key] ,
+ boxes[i], Y_AXIS, -dir);
if (stem
&& !Stem::is_invisible (stem))
y.add_point (Stem::head_positions (stem)[-stemdir]
* staff_space * .5);
- insert_extent_into_skyline (&chord_outlines_[d], Box (x,y), Y_AXIS, -d);
-
+ insert_extent_into_skyline (&chord_outlines_[key], Box (x,y), Y_AXIS, -dir);
+ stem_extents_[key].unite (Box (x,y));
- if (d == LEFT)
+ if (dir == LEFT)
{
Box flag_box = Stem::get_translated_flag (stem).extent_box ();
flag_box.translate( Offset (x[RIGHT], X_AXIS));
- insert_extent_into_skyline (&chord_outlines_[d], flag_box,
- Y_AXIS, -d);
+ insert_extent_into_skyline (&chord_outlines_[key], flag_box,
+ Y_AXIS, -dir);
}
}
Direction updowndir = DOWN;
do
{
- Interval x ;
+ Interval x;
Interval y;
- if (boxes.size())
+ if (head_boxes.size())
{
- Box b = boxes.boundary (updowndir, 0);
+ Box b = boundary (head_boxes, updowndir, 0);
x = b[X_AXIS];
- x[-d] = b[X_AXIS].linear_combination (-d / 2);
+ x[-dir] = b[X_AXIS].linear_combination (-dir / 2);
y[-updowndir] = b[Y_AXIS][updowndir];
y[updowndir] = updowndir * infinity_f;
}
if (!x.is_empty ())
- insert_extent_into_skyline (&chord_outlines_[d],
+ insert_extent_into_skyline (&chord_outlines_[key],
Box (x,y),
- Y_AXIS, -d);
+ Y_AXIS, -dir);
}
while (flip (&updowndir) != DOWN);
-
- for (int i = 0; i < bounds.size (); i++)
+
+ head_extents_[key].set_empty ();
+ for (vsize i = 0; i < head_boxes.size (); i++)
{
- if (!Note_head::has_interface (bounds[i]))
- continue;
+ head_extents_[key].unite (head_boxes[i]);
+ }
+}
-
- Grob *dots = unsmob_grob (bounds[i]->get_object ("dot"));
- if (dots && d == LEFT)
- {
- Interval x = dots->extent (x_refpoint_, X_AXIS);
- Real p = Staff_symbol_referencer::get_position (dots);
-
- Interval y (-1,1);
- y *= (staff_space /4);
- y.translate (p * staff_space * .5);
+void
+Tie_formatting_problem::set_chord_outline (vector<Item*> bounds,
+ Direction dir)
+
+{
+ vector<int> ranks;
+ for (vsize i = 0; i < bounds.size (); i++)
+ ranks.push_back (bounds[i]->get_column ()->get_rank ());
- insert_extent_into_skyline (&chord_outlines_[d],
- Box (x,y), Y_AXIS, -d);
+ vector_sort (ranks, default_compare);
+ uniq (ranks);
+
+ for (vsize i = 0; i < ranks.size (); i++)
+ {
+ vector<Item*> col_items;
+ for (vsize j = 0; j < bounds.size (); j ++)
+ {
+ if (bounds[j]->get_column ()->get_rank () == ranks[i])
+ col_items.push_back (bounds[j]);
}
+
+ set_column_chord_outline (col_items, dir, ranks[i]);
}
}
+
void
Tie_formatting_problem::from_tie (Grob *tie)
{
- Link_array<Grob> ties;
- ties.push (tie);
-
+ vector<Grob*> ties;
+ ties.push_back (tie);
from_ties (ties);
details_.from_grob (tie);
}
void
-Tie_formatting_problem::from_ties (Link_array<Grob> const &ties)
+Tie_formatting_problem::from_ties (vector<Grob*> const &ties)
{
- if (ties.is_empty ())
+ if (ties.empty ())
return;
x_refpoint_ = ties[0];
- details_.from_grob (ties[0]);
- for (int i = 0; i < ties.size (); i++)
+ for (vsize i = 0; i < ties.size (); i++)
{
x_refpoint_ = dynamic_cast<Spanner*> (ties[i])->get_bound (LEFT)->common_refpoint (x_refpoint_, X_AXIS);
x_refpoint_ = dynamic_cast<Spanner*> (ties[i])->get_bound (RIGHT)->common_refpoint (x_refpoint_, X_AXIS);
}
+
+ details_.from_grob (ties[0]);
Direction d = LEFT;
do
{
- Link_array<Item> bounds;
+ vector<Item*> bounds;
- for (int i = 0; i < ties.size (); i++)
+ for (vsize i = 0; i < ties.size (); i++)
{
Item *it = dynamic_cast<Spanner*> (ties[i])->get_bound (d);
- bounds.push (it);
+ bounds.push_back (it);
}
set_chord_outline (bounds, d);
}
while (flip (&d) != LEFT);
+
+
+ for (vsize i = 0; i < ties.size (); i++)
+ {
+ Tie_specification spec;
+
+ if (scm_is_number (ties[i]->get_property_data (ly_symbol2scm ("direction"))))
+ {
+ spec.manual_dir_ = to_dir (ties[i]->get_property ("direction"));
+ spec.has_manual_dir_ = true;
+ }
+
+ spec.position_ = Tie::get_position (ties[i]);
+ if (scm_is_number (ties[i]->get_property ("staff-position")))
+ {
+ spec.manual_position_ = scm_to_double (ties[i]->get_property ("staff-position"));
+ spec.has_manual_position_ = true;
+ spec.position_ = int (my_round (spec.manual_position_));
+ }
+
+ do
+ {
+ spec.note_head_drul_[d] = Tie::head (ties[i], d);
+ spec.column_ranks_[d] =
+ dynamic_cast<Spanner*> (ties[i])->get_bound (d)->get_column ()->get_rank ();
+ }
+ while (flip (&d) != LEFT);
+ specifications_.push_back (spec);
+ }
}
void
-Tie_formatting_problem::from_lv_ties (Link_array<Grob> const &lv_ties)
+Tie_formatting_problem::from_semi_ties (vector<Grob*> const &lv_ties, Direction head_dir)
{
- if (lv_ties.is_empty ())
- return ;
+ if (lv_ties.empty ())
+ return;
details_.from_grob (lv_ties[0]);
- Link_array<Item> heads;
- for (int i = 0; i < lv_ties.size (); i++)
+ vector<Item*> heads;
+
+ int column_rank = -1;
+ for (vsize i = 0; i < lv_ties.size (); i++)
{
+ Tie_specification spec;
Item *head = unsmob_item (lv_ties[i]->get_object ("note-head"));
- heads.push (head);
+
+ if (!head)
+ programming_error ("LV tie without head?!");
+
+ if (head)
+ {
+ spec.position_ = int (Staff_symbol_referencer::get_position (head));
+ }
+
+
+ spec.note_head_drul_[head_dir] = head;
+ column_rank = dynamic_cast<Item*> (head)->get_column ()->get_rank ();
+ spec.column_ranks_ = Drul_array<int> (column_rank, column_rank);
+ heads.push_back (head);
+ specifications_.push_back (spec);
}
x_refpoint_ = lv_ties [0];
- for (int i = 0; i < lv_ties.size (); i++)
- {
- x_refpoint_ = lv_ties[i]->common_refpoint (x_refpoint_, X_AXIS);
- }
+ for (vsize i = 0; i < lv_ties.size (); i++)
+ x_refpoint_ = lv_ties[i]->common_refpoint (x_refpoint_, X_AXIS);
+ for (vsize i = 0; i < heads.size (); i++)
+ x_refpoint_ = heads[i]->common_refpoint (x_refpoint_, X_AXIS);
- set_chord_outline (heads, LEFT);
+ set_chord_outline (heads, head_dir);
- Real right_most = - infinity_f;
+ Real extremal = head_dir * infinity_f;
- for (int i = 0; i < chord_outlines_[LEFT].size (); i++)
+ Tuple2<int> head_key (column_rank, head_dir);
+ Tuple2<int> open_key (column_rank, -head_dir);
+
+ for (vsize i = 0; i < chord_outlines_[head_key].size (); i++)
{
- right_most = max (right_most, chord_outlines_[LEFT][i].height_);
+ extremal = head_dir * min (head_dir * extremal,
+ head_dir * chord_outlines_[head_key][i].height_);
}
Skyline_entry right_entry;
right_entry.width_.set_full ();
- right_entry.height_ = right_most + 1.5;
+ right_entry.height_ = extremal - head_dir * 1.5;
+
+ chord_outlines_[open_key].push_back (right_entry);
+}
+
+
+Tie_specification
+Tie_formatting_problem::get_tie_specification (int i) const
+{
+ return specifications_[i];
+}
+
+
+/*
+ Return configuration, create it if necessary.
+*/
+Tie_configuration*
+Tie_formatting_problem::get_configuration (int pos, Direction dir, Drul_array<int> columns) const
+{
+ int key_components[] = {
+ pos, dir, columns[LEFT], columns[RIGHT]
+ };
+ Tuple<int,4> key (key_components);
+
+ Tie_configuration_map::const_iterator f = possibilities_.find (key);
+ if (f != possibilities_.end ())
+ {
+ return (*f).second;
+ }
+
+
+ Tie_configuration *conf = generate_configuration (pos, dir, columns);
+ ((Tie_formatting_problem*) this)->possibilities_[key] = conf;
+ return conf;
+}
+
+Tie_configuration*
+Tie_formatting_problem::generate_configuration (int pos, Direction dir,
+ Drul_array<int> columns) const
+{
+ Tie_configuration *conf = new Tie_configuration;
+ conf->position_ = pos;
+ conf->dir_ = dir;
+
+ conf->column_ranks_ = columns;
+
+ Real y = conf->position_ * 0.5 * details_.staff_space_;
+
+ bool y_tune = true;
+ if (dot_positions_.find (pos) != dot_positions_.end ())
+ {
+ conf->delta_y_ += dir * 0.25 * details_.staff_space_;
+ y_tune = false;
+ }
+
+ if (y_tune
+ && max (fabs (get_head_extent (columns[LEFT], LEFT, Y_AXIS)[dir] - y),
+ fabs (get_head_extent (columns[RIGHT], RIGHT, Y_AXIS)[dir] - y)) < 0.25
+ && !Staff_symbol_referencer::on_line (details_.staff_symbol_referencer_, pos))
+ {
+ conf->delta_y_ =
+ (get_head_extent (columns[LEFT], LEFT, Y_AXIS)[dir] - y)
+ + dir * details_.outer_tie_vertical_gap_;
+ }
+
+ if (y_tune)
+ {
+ conf->attachment_x_ = get_attachment (y + conf->delta_y_, conf->column_ranks_);
+ Real h = conf->height (details_);
+
+ /*
+ TODO:
+
+ - should make sliding criterion, should flatten ties if
+
+ - they're just the wrong (ie. touching line at top & bottom)
+ size.
+
+ */
+ if (h < details_.intra_space_threshold_ * 0.5 * details_.staff_space_)
+ {
+ if (!Staff_symbol_referencer::on_line (details_.staff_symbol_referencer_, pos)
+ && abs (pos) < 2 * Staff_symbol_referencer::staff_radius (details_.staff_symbol_referencer_))
+ {
+ conf->center_tie_vertically (details_);
+ }
+ else if (Staff_symbol_referencer::on_line (details_.staff_symbol_referencer_, pos))
+ {
+ conf->delta_y_ += dir *
+ details_.tip_staff_line_clearance_ * 0.5 * details_.staff_space_;
+ }
+ }
+ else
+ {
+ Real top_y = y + conf->delta_y_ + conf->dir_ * h;
+ Real top_pos = top_y / (0.5*details_.staff_space_);
+ int round_pos = int (my_round (top_pos));
+
+ /* TODO: should use other variable? */
+ Real clearance = details_.center_staff_line_clearance_;
+ if (fabs (top_pos - round_pos) < clearance
+ && Staff_symbol_referencer::on_staff_line (details_.staff_symbol_referencer_,
+ round_pos))
+ {
+ Real new_y = (round_pos + clearance * conf->dir_) * 0.5 * details_.staff_space_;
+ conf->delta_y_ = (new_y - top_y);
+ }
+ }
+ }
+
+ conf->attachment_x_ = get_attachment (y + conf->delta_y_, conf->column_ranks_);
+ if (conf->height (details_) < details_.intra_space_threshold_ * 0.5 * details_.staff_space_)
+ {
+ /*
+ This is less sensible for long ties, since those are more
+ horizontal.
+ */
+ Interval close_by = get_attachment (y
+ + conf->delta_y_
+ + (dir * details_.intra_space_threshold_ * 0.25
+ * details_.staff_space_),
+ conf->column_ranks_);
+
+ conf->attachment_x_.intersect (close_by);
+ }
+
+ conf->attachment_x_.widen ( - details_.x_gap_);
+
+ Direction d = LEFT;
+ do
+ {
+ Real y = conf->position_ * details_.staff_space_ * 0.5 + conf->delta_y_;
+ if (get_stem_extent (conf->column_ranks_[d], d, X_AXIS).is_empty ()
+ || !get_stem_extent (conf->column_ranks_[d], d, Y_AXIS).contains (y))
+ continue;
+
+ conf->attachment_x_[d] =
+ d * min (d * conf->attachment_x_[d],
+ d * (get_stem_extent (conf->column_ranks_[d], d, X_AXIS)[-d] - d * details_.stem_gap_));
+ }
+ while (flip (&d) != LEFT);
+
+ return conf;
+}
+
+Interval
+Tie_formatting_problem::get_head_extent (int col, Direction d, Axis a) const
+{
+ return (*head_extents_.find (Tuple2<int> (col, int (d)))).second[a];
+}
+
+Interval
+Tie_formatting_problem::get_stem_extent (int col, Direction d, Axis a) const
+{
+ return (*stem_extents_.find (Tuple2<int> (col, int (d)))).second[a];
+}
+
+/**
+ TIE_IDX and TIES_CONF are optional.
+ */
+Real
+Tie_formatting_problem::score_aptitude (Tie_configuration *conf,
+ Tie_specification const &spec,
+ Ties_configuration *ties_conf, int tie_idx) const
+{
+ Real penalty = 0.0;
+ Real curve_y = conf->position_ * details_.staff_space_ * 0.5 + conf->delta_y_;
+ Real tie_y = spec.position_ * details_.staff_space_ * 0.5;
+ if (sign (curve_y - tie_y) != conf->dir_)
+ {
+ Real p = details_.wrong_direction_offset_penalty_;
+ if (ties_conf)
+ ties_conf->add_tie_score (p, tie_idx, "wrong dir");
+ else
+ penalty += p;
+ }
+
+ {
+ Real p = details_.vertical_distance_penalty_factor_ * fabs (curve_y - tie_y);
+ if (ties_conf)
+ ties_conf->add_tie_score (p, tie_idx, "vdist");
+ else
+ penalty += p;
+ }
+
+ Direction d = LEFT;
+ do
+ {
+ if (!spec.note_head_drul_[d])
+ continue;
+
+ Interval head_x = spec.note_head_drul_[d]->extent (x_refpoint_, X_AXIS);
+ Real dist = head_x.distance (conf->attachment_x_[d]);
+
+ /*
+ TODO: flatten with log or sqrt.
+ */
+ Real p = details_.horizontal_distance_penalty_factor_ * dist;
+ if (ties_conf)
+ ties_conf->add_tie_score (p, tie_idx,
+ (d == LEFT) ? "lhdist" : "rhdist");
+ else
+ penalty += p;
+ }
+ while (flip (&d) != LEFT);
+
+ return penalty;
+}
+
+void
+Tie_formatting_problem::score_configuration (Tie_configuration *conf) const
+{
+ if (conf->scored_)
+ {
+ return ;
+ }
+
+ Real length = conf->attachment_x_.length ();
+
+ conf->add_score (details_.min_length_penalty_factor_
+ * peak_around (0.33 * details_.min_length_, details_.min_length_, length),
+ "minlength");
+
+ Real tip_pos = conf->position_ + conf->delta_y_ / 0.5 * details_.staff_space_;
+ Real tip_y = tip_pos * details_.staff_space_ * 0.5;
+ Real height = conf->height (details_);
+
+ Real top_y = tip_y + conf->dir_ * height;
+ Real top_pos = 2 * top_y / details_.staff_space_;
+ Real round_top_pos = rint (top_pos);
+ if (Staff_symbol_referencer::on_line (details_.staff_symbol_referencer_,
+ int (round_top_pos))
+ && Staff_symbol_referencer::staff_radius (details_.staff_symbol_referencer_) > top_y)
+ {
+ conf->add_score (
+ details_.staff_line_collision_penalty_
+ * peak_around (0.1 * details_.center_staff_line_clearance_,
+ details_.center_staff_line_clearance_,
+ fabs (top_pos - round_top_pos)),
+ "line center");
+ }
+
+ if (Staff_symbol_referencer::on_line (details_.staff_symbol_referencer_,
+ int (rint (tip_pos))))
+ {
+ conf->add_score (details_.staff_line_collision_penalty_
+ * peak_around (0.1 * details_.tip_staff_line_clearance_,
+ details_.tip_staff_line_clearance_,
+ fabs (tip_pos - rint (tip_pos))),
+ "tipline");
+ }
+
+ if (!dot_x_.is_empty ())
+ {
+ /* use left edge? */
+ Real x = dot_x_.center ();
+
+ Bezier b = conf->get_transformed_bezier (details_);
+ if (b.control_point_extent (X_AXIS).contains (x))
+ {
+ Real y = b.get_other_coordinate (X_AXIS, x);
+
+ for (set<int>::const_iterator i (dot_positions_.begin ());
+ i != dot_positions_.end (); i ++)
+ {
+ int dot_pos = (*i);
+ conf->add_score (details_.dot_collision_penalty_
+ * peak_around (.1 * details_.dot_collision_clearance_,
+ details_.dot_collision_clearance_,
+ fabs (dot_pos * details_.staff_space_ * 0.5 - y)),
+ "dot collision");
+ }
+ }
+ }
+
+ conf->scored_ = true;
+}
+
+Tie_configuration
+Tie_formatting_problem::find_optimal_tie_configuration (Tie_specification const &spec) const
+{
+ vector<Tie_configuration*> confs;
+
+ int pos = spec.position_;
+ Direction dir = spec.manual_dir_;
+
+ for (int i = 0; i < details_.single_tie_region_size_; i ++)
+ {
+ confs.push_back (generate_configuration (pos + i * dir, dir,
+ spec.column_ranks_));
+
+ if (spec.has_manual_position_)
+ {
+ confs.back ()->delta_y_
+ = (spec.manual_position_ - spec.position_)
+ * 0.5 * details_.staff_space_;
+
+ break;
+ }
+ }
+
+ vector<Real> scores;
+
+ int best_idx = -1;
+ Real best_score = 1e6;
+ for (vsize i = 0; i < confs.size (); i ++)
+ {
+ score_configuration (confs[i]);
+ Real score = score_aptitude (confs[i], spec, 0, 0)
+ + confs[i]->score ();
+
+ if (score < best_score)
+ {
+ best_score = score;
+ best_idx = i;
+ }
+ }
+
+ if (best_idx < 0)
+ programming_error ("No best tie configuration found.");
+
+ Tie_configuration best
+ = (best_idx >= 0) ? *confs[best_idx] : *confs[0];
+
+ for (vsize i = 0; i < confs.size (); i++)
+ delete confs[i];
+
+ return best;
+}
+
+Tie_specification::Tie_specification ()
+{
+ has_manual_position_ = false;
+ has_manual_dir_ = false;
+ position_ = 0;
+ manual_position_ = 0;
+ manual_dir_ = CENTER;
+ note_head_drul_[LEFT] =
+ note_head_drul_[RIGHT] = 0;
+ column_ranks_[RIGHT] =
+ column_ranks_[LEFT] = 0;
+}
+
+int
+Tie_specification::column_span () const
+{
+ return column_ranks_[RIGHT] - column_ranks_[LEFT];
+}
+
+void
+Tie_formatting_problem::score_ties_aptitude (Ties_configuration *ties) const
+{
+ if (ties->size () != specifications_.size ())
+ {
+ programming_error ("Huh? Mismatch between sizes.");
+ return;
+ }
+
+ for (vsize i = 0; i < ties->size (); i++)
+ score_aptitude (&ties->at (i), specifications_[i],
+ ties, i);
+}
+
+void
+Tie_formatting_problem::score_ties (Ties_configuration *ties) const
+{
+ if (ties->scored_)
+ return;
+
+ score_ties_configuration (ties);
+ score_ties_aptitude (ties);
+ ties->scored_ = true;
+}
+
+void
+Tie_formatting_problem::score_ties_configuration (Ties_configuration *ties) const
+{
+ for (vsize i = 0; i < ties->size (); i++)
+ {
+ score_configuration (&ties->at (i));
+ ties->add_tie_score (ties->at (i).score (), i, "conf");
+ }
+
+ Real last_edge = 0.0;
+ Real last_center = 0.0;
+ for (vsize i = 0; i < ties->size (); i++)
+ {
+ Bezier b (ties->at (i).get_transformed_bezier (details_));
+
+ Real center = b.curve_point (0.5)[Y_AXIS];
+ Real edge = b.curve_point (0.0)[Y_AXIS];
+
+ if (i)
+ {
+ if (edge <= last_edge)
+ ties->add_score (details_.tie_column_monotonicity_penalty_, "monoton edge");
+ if (center <= last_center)
+ ties->add_score (details_.tie_column_monotonicity_penalty_, "monoton cent");
+
+ ties->add_score (details_.tie_tie_collision_penalty_ *
+ peak_around (0.1 * details_.tie_tie_collision_distance_,
+ details_.tie_tie_collision_distance_,
+ fabs (center - last_center)),
+ "tietie center");
+ ties->add_score (details_.tie_tie_collision_penalty_ *
+ peak_around (0.1 * details_.tie_tie_collision_distance_,
+ details_.tie_tie_collision_distance_,
+ fabs (edge - last_edge)), "tietie edge");
+ }
+
+ last_edge = edge;
+ last_center = center;
+ }
+
+ ties->add_score (details_.outer_tie_length_symmetry_penalty_factor_
+ * fabs (ties->at (0).attachment_x_.length () - ties->back ().attachment_x_.length ()),
+ "length symm");
+
+ ties->add_score (details_.outer_tie_vertical_distance_symmetry_penalty_factor_
+ * fabs (fabs (specifications_[0].position_ * 0.5 * details_.staff_space_
+ - (ties->at (0).position_ * 0.5 * details_.staff_space_
+ + ties->at (0).delta_y_))
+ -
+ fabs (specifications_.back ().position_ * 0.5 * details_.staff_space_
+ - (ties->back ().position_ * 0.5 * details_.staff_space_
+ + ties->back ().delta_y_))),
+ "pos symmetry");
+}
+
+/*
+ Generate with correct X-attachments and beziers, copying delta_y_
+ from TIES_CONFIG if necessary.
+*/
+Ties_configuration
+Tie_formatting_problem::generate_ties_configuration (Ties_configuration const &ties_config)
+{
+ Ties_configuration copy;
+ for (vsize i = 0; i < ties_config.size (); i++)
+ {
+ Tie_configuration * ptr = get_configuration (ties_config[i].position_, ties_config[i].dir_,
+ ties_config[i].column_ranks_);
+ if (specifications_[i].has_manual_position_)
+ {
+ ptr->delta_y_
+ = (specifications_[i].manual_position_ - ties_config[i].position_)
+ * 0.5 * details_.staff_space_;
+ }
+ copy.push_back (*ptr);
+ }
+
+ return copy;
+}
+
+Ties_configuration
+Tie_formatting_problem::generate_base_chord_configuration ()
+{
+ Ties_configuration ties_config;
+ for (vsize i = 0; i < specifications_.size (); i ++)
+ {
+ Tie_configuration conf;
+ if (specifications_[i].has_manual_dir_)
+ conf.dir_ = specifications_[i].manual_dir_;
+ if (specifications_[i].has_manual_position_)
+ {
+ conf.position_ = (int) my_round (specifications_[i].manual_position_);
+ conf.delta_y_ = (specifications_[i].manual_position_ - conf.position_)
+ * 0.5 * details_.staff_space_;
+ }
+ else
+ {
+ conf.position_ = specifications_[i].position_;
+ }
+
+ conf.column_ranks_ = specifications_[i].column_ranks_;
+ ties_config.push_back (conf);
+ }
+
+ set_ties_config_standard_directions (&ties_config);
+ for (vsize i = 0; i < ties_config.size (); i++)
+ if (!specifications_[i].manual_position_)
+ ties_config[i].position_ += ties_config[i].dir_;
+
+ ties_config = generate_ties_configuration (ties_config);
+
+ return ties_config;
+}
+
+Ties_configuration
+Tie_formatting_problem::find_best_variation (Ties_configuration const &base,
+ vector<Tie_configuration_variation> vars)
+{
+ Ties_configuration best = base;
+
+ /*
+ This simply is 1-opt: we have K substitions, and we try applying
+ exactly every one for each.
+ */
+ for (vsize i = 0; i < vars.size (); i++)
+ {
+ Ties_configuration variant (base);
+ variant[vars[i].index_] = *vars[i].suggestion_;
+
+ variant.reset_score ();
+ score_ties (&variant);
+
+ if (variant.score () < best.score ())
+ {
+ best = variant;
+ }
+ }
+
+ return best;
+}
+
+
+
+Ties_configuration
+Tie_formatting_problem::generate_optimal_chord_configuration ()
+{
+
+ Ties_configuration base = generate_base_chord_configuration ();
+ vector<Tie_configuration_variation> vars = generate_collision_variations (base);
+
+ score_ties (&base);
+ Ties_configuration best = find_best_variation (base, vars);
+ vars = generate_extremal_tie_variations (best);
+ best = find_best_variation (best, vars);
+
+ return best;
+}
+
+void
+Tie_formatting_problem::set_ties_config_standard_directions (Ties_configuration *tie_configs)
+{
+ if (tie_configs->empty ())
+ return ;
+
+ if (!tie_configs->at (0).dir_)
+ tie_configs->at (0).dir_ = DOWN;
+ if (!tie_configs->back ().dir_)
+ tie_configs->back ().dir_ = UP;
+
+ /*
+ Seconds
+ */
+ for (vsize i = 1; i < tie_configs->size (); i++)
+ {
+ Real diff = (tie_configs->at (i).position_
+ -tie_configs->at (i-1).position_);
+
+ Real span_diff
+ = specifications_[i].column_span () - specifications_[i-1].column_span ();
+ if (span_diff && fabs (diff) <= 2)
+ {
+ if (span_diff > 0)
+ tie_configs->at (i).dir_ = UP;
+ else if (span_diff < 0)
+ tie_configs->at (i-1).dir_ = DOWN;
+ }
+ else if (fabs (diff) <= 1)
+ {
+ if (!tie_configs->at (i-1).dir_)
+ tie_configs->at (i-1).dir_ = DOWN;
+ if (!tie_configs->at (i).dir_)
+ tie_configs->at (i).dir_ = UP;
+ }
+ }
+
+ for (vsize i = 1; i < tie_configs->size() - 1; i++)
+ {
+ Tie_configuration &conf = tie_configs->at (i);
+ if (conf.dir_)
+ continue;
+
+ Direction position_dir =
+ Direction (sign (conf.position_));
+ if (!position_dir)
+ position_dir = DOWN;
+
+ conf.dir_ = position_dir;
+ }
+}
+
+Tie_configuration_variation::Tie_configuration_variation ()
+{
+ index_ = 0;
+ suggestion_ = 0;
+}
+
+vector<Tie_configuration_variation>
+Tie_formatting_problem::generate_extremal_tie_variations (Ties_configuration const &ties) const
+{
+ vector<Tie_configuration_variation> vars;
+ Direction d = DOWN;
+ do
+ {
+ if (boundary (ties, d, 0).dir_ == d
+ && !boundary (specifications_, d, 0).has_manual_position_)
+ for (int i = 1; i <= details_.multi_tie_region_size_; i++)
+ {
+ Tie_configuration_variation var;
+ var.index_ = (d == DOWN) ? 0 : ties.size () - 1;
+ var.suggestion_ = get_configuration (boundary (ties, d, 0).position_
+ + d * i, d,
+ boundary (ties, d, 0).column_ranks_);
+ vars.push_back (var);
+ }
+ }
+ while (flip (&d) != DOWN);
+
+ return vars;
+}
+
+
+vector<Tie_configuration_variation>
+Tie_formatting_problem::generate_collision_variations (Ties_configuration const &ties) const
+{
+ Real center_distance_tolerance = 0.25;
- chord_outlines_[RIGHT].push (right_entry);
+ vector<Tie_configuration_variation> vars;
+ Real last_center = 0.0;
+ for (vsize i = 0; i < ties.size (); i++)
+ {
+ Bezier b (ties[i].get_transformed_bezier (details_));
+
+ Real center = b.curve_point (0.5)[Y_AXIS];
+
+ if (i)
+ {
+ if (center <= last_center + center_distance_tolerance)
+ {
+ if (!specifications_[i].has_manual_dir_)
+ {
+ Tie_configuration_variation var;
+ var.index_ = i;
+ var.suggestion_ = get_configuration (specifications_[i].position_
+ - ties[i].dir_,
+ - ties[i].dir_,
+
+ ties[i].column_ranks_
+ );
+
+ vars.push_back (var);
+ }
+
+ if (!specifications_[i-1].has_manual_dir_)
+ {
+ Tie_configuration_variation var;
+ var.index_ = i-1;
+ var.suggestion_ = get_configuration (specifications_[i-1].position_
+ - ties[i-1].dir_,
+ - ties[i-1].dir_,
+ specifications_[i-1].column_ranks_);
+
+ vars.push_back (var);
+ }
+
+ if (i == 1 && !specifications_[i-1].has_manual_position_
+ && ties[i-1].dir_ == DOWN)
+ {
+ Tie_configuration_variation var;
+ var.index_ = i-1;
+ var.suggestion_ = get_configuration (specifications_[i-1].position_ - 1, DOWN,
+ specifications_[i-1].column_ranks_);
+ vars.push_back (var);
+ }
+ if (i == ties.size() && !specifications_[i].has_manual_position_
+ && ties[i].dir_ == UP)
+ {
+ Tie_configuration_variation var;
+ var.index_ = i;
+ var.suggestion_ = get_configuration (specifications_[i].position_
+ + 1, UP,
+ specifications_[i].column_ranks_);
+ vars.push_back (var);
+ }
+ }
+ else if (dot_positions_.find (ties[i].position_) != dot_positions_.end ()
+ && !specifications_[i].has_manual_position_)
+ {
+ Tie_configuration_variation var;
+ var.index_ = i;
+ var.suggestion_ = get_configuration (ties[i].position_ + ties[i].dir_,
+ ties[i].dir_,
+ ties[i].column_ranks_);
+ vars.push_back (var);
+ }
+
+ }
+
+ last_center = center;
+ }
+
+
+ return vars;
+}
+
+void
+Tie_formatting_problem::set_manual_tie_configuration (SCM manual_configs)
+{
+ vsize k = 0;
+ for (SCM s = manual_configs;
+ scm_is_pair (s) && k < specifications_.size (); s = scm_cdr (s))
+ {
+ SCM entry = scm_car (s);
+ if (scm_is_pair (entry))
+ {
+ Tie_specification &spec = specifications_[k];
+
+ if (scm_is_number (scm_car (entry)))
+ {
+ spec.has_manual_position_ = true;
+ spec.manual_position_ = scm_to_double (scm_car (entry));
+ }
+ if (scm_is_number (scm_cdr (entry)))
+ {
+ spec.has_manual_dir_ = true;
+ spec.manual_dir_ = Direction (scm_to_int (scm_cdr (entry)));
+ }
+ }
+ k ++;
+ }
}
+
projects / lilypond.git / blobdiff