source file of the GNU LilyPond music typesetter
- (c) 1996--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1996--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
Jan Nieuwenhuizen <janneke@gnu.org>
*/
#include <math.h>
+#include "slur-scoring.hh"
#include "libc-extension.hh"
#include "slur-configuration.hh"
-#include "slur-scoring.hh"
#include "beam.hh"
#include "directional-element-interface.hh"
#include "group-interface.hh"
-#include "lily-guile.hh"
#include "slur.hh"
#include "note-column.hh"
#include "output-def.hh"
#include "pitch.hh"
-#include "bezier.hh"
#include "spanner.hh"
#include "staff-symbol-referencer.hh"
#include "staff-symbol.hh"
- calculate encompass scoring directly after determining slur shape.
- optimize.
-
*/
struct Slur_score_state;
-Slur_score_state::Slur_score_state()
+Slur_score_state::Slur_score_state ()
{
musical_dy_ = 0.0;
valid_ = false;
slur_ = 0;
common_[X_AXIS] = 0;
common_[Y_AXIS] = 0;
- scores_ = 0;
}
Slur_score_state::~Slur_score_state ()
{
- delete scores_;
+ junk_pointers (configurations_);
}
-
-
-
-
Real
get_detail (SCM alist, SCM sym)
{
}
void
-init_score_param (Grob *me,
- Slur_score_parameters *score_param)
+Slur_score_parameters::fill (Grob *me)
{
SCM details = me->get_property ("slur-details");
- score_param->region_size_
+ region_size_
= (int) get_detail (details, ly_symbol2scm ("region-size"));
- score_param->head_encompass_penalty_
+ head_encompass_penalty_
= get_detail (details, ly_symbol2scm ("head-encompass-penalty"));
- score_param->stem_encompass_penalty_
+ stem_encompass_penalty_
= get_detail (details, ly_symbol2scm ("stem-encompass-penalty"));
- score_param->closeness_factor_
+ closeness_factor_
= get_detail (details, ly_symbol2scm ("closeness-factor"));
- score_param->edge_attraction_factor_
+ edge_attraction_factor_
= get_detail (details, ly_symbol2scm ("edge-attraction-factor"));
- score_param->same_slope_penalty_
+ same_slope_penalty_
= get_detail (details, ly_symbol2scm ("same-slope-penalty"));
- score_param->steeper_slope_factor_
+ steeper_slope_factor_
= get_detail (details, ly_symbol2scm ("steeper-slope-factor"));
- score_param->non_horizontal_penalty_
+ non_horizontal_penalty_
= get_detail (details, ly_symbol2scm ("non-horizontal-penalty"));
- score_param->max_slope_
+ max_slope_
= get_detail (details, ly_symbol2scm ("max-slope"));
- score_param->max_slope_factor_
+ max_slope_factor_
= get_detail (details, ly_symbol2scm ("max-slope-factor"));
- score_param->free_head_distance_
+ free_head_distance_
= get_detail (details, ly_symbol2scm ("free-head-distance"));
- score_param->extra_object_collision_
+ absolute_closeness_measure_
+ = get_detail (details, ly_symbol2scm ("absolute-closeness-measure"));
+ extra_object_collision_
= get_detail (details, ly_symbol2scm ("extra-object-collision"));
- score_param->accidental_collision_
+ accidental_collision_
= get_detail (details, ly_symbol2scm ("accidental-collision"));
- score_param->extra_encompass_free_distance_
+ extra_encompass_free_distance_
= get_detail (details, ly_symbol2scm ("extra-encompass-free-distance"));
- score_param->head_slur_distance_factor_
+ head_slur_distance_factor_
= get_detail (details, ly_symbol2scm ("head-slur-distance-factor"));
- score_param->head_slur_distance_max_ratio_
+ head_slur_distance_max_ratio_
= get_detail (details, ly_symbol2scm ("head-slur-distance-max-ratio"));
- score_param->free_slur_distance_
+ free_slur_distance_
= get_detail (details, ly_symbol2scm ("free-slur-distance"));
- score_param->edge_slope_exponent_
+ edge_slope_exponent_
= get_detail (details, ly_symbol2scm ("edge-slope-exponent"));
}
/* A broken slur should maintain the same vertical trend
the unbroken slur would have had. */
Real by = 0.0;
- if (Spanner *mother = dynamic_cast<Spanner*> (state.slur_->original_))
+ if (Spanner *mother = dynamic_cast<Spanner *> (state.slur_->original_))
{
int k = broken_spanner_index (state.slur_);
int j = k + hdir;
Grob *neighbor = mother->broken_intos_[j];
Spanner *common_mother
- = dynamic_cast<Spanner*> (state.common_[Y_AXIS]->original_);
+ = dynamic_cast<Spanner *> (state.common_[Y_AXIS]->original_);
int common_k
- = broken_spanner_index (dynamic_cast<Spanner*> (state.common_[Y_AXIS]));
+ = broken_spanner_index (dynamic_cast<Spanner *> (state.common_[Y_AXIS]));
int common_j = common_k + hdir;
if (common_j < 0 || common_j >= common_mother->broken_intos_.size ())
return by;
Grob *common_next_system = common_mother->broken_intos_[common_j];
-
- SCM last_point = scm_car (scm_last_pair (neighbor->get_property ("control-points")));
-
+
+ SCM last_point = scm_car (scm_last_pair (neighbor->get_property ("control-points")));
+
return scm_to_double (scm_cdr (last_point))
+ neighbor->relative_coordinate (common_next_system, Y_AXIS);
}
return by;
}
-
/*
copy slur dir forwards across line break.
*/
void
-Slur_score_state::set_next_direction ()
+Slur_score_state::set_next_direction ()
{
if (extremes_[RIGHT].note_column_)
return;
-
- if (Spanner *mother = dynamic_cast<Spanner*> (slur_->original_))
+
+ if (Spanner *mother = dynamic_cast<Spanner *> (slur_->original_))
{
int k = broken_spanner_index (slur_);
int j = k + 1;
if (!stem)
{
- programming_error ("No stem for note column?");
+ programming_error ("no stem for note column");
ei.x_ = col->relative_coordinate (common_[X_AXIS], X_AXIS);
ei.head_ = ei.stem_ = col->extent (common_[Y_AXIS],
Y_AXIS)[dir_];
return ei;
}
-
-
-
Drul_array<Bound_info>
Slur_score_state::get_bound_info () const
{
}
}
while (flip (&d) != LEFT);
+
return extremes;
}
void
Slur_score_state::fill (Grob *me)
{
- slur_ = dynamic_cast<Spanner*> (me);
- columns_
- = Pointer_group_interface__extract_grobs (me, (Grob *) 0, "note-columns");
-
+ slur_ = dynamic_cast<Spanner *> (me);
+ columns_
+ = extract_grob_array (me, ly_symbol2scm ("note-columns"));
+
if (columns_.is_empty ())
{
me->suicide ();
- return ;
+ return;
}
staff_space_ = Staff_symbol_referencer::staff_space (me);
- Real lt = me->get_paper ()->get_dimension (ly_symbol2scm ("linethickness"));
- thickness_ = robust_scm2double (me->get_property ("thickness"), 1.0) * lt;
-
+ Real lt = me->get_layout ()->get_dimension (ly_symbol2scm ("linethickness"));
+ thickness_ = robust_scm2double (me->get_property ("thickness"), 1.0) * lt;
+
dir_ = get_grob_direction (me);
- init_score_param (me, ¶meters_);
-
+ parameters_.fill (me);
+
SCM eltlist = me->get_property ("note-columns");
SCM extra_list = me->get_property ("encompass-objects");
- Spanner *sp = dynamic_cast<Spanner*> (me);
+ Spanner *sp = dynamic_cast<Spanner *> (me);
for (int i = X_AXIS; i < NO_AXES; i++)
{
common_[a] = common_refpoint_of_list (extra_list, common_[a], a);
Direction d = LEFT;
- do {
- common_[a] = common_[a]->common_refpoint (sp->get_bound (d), a);
- }
+ do
+ {
+ /*
+ If bound is not in note-columns, we don't want to know about
+ its Y-position
+ */
+ if (a != Y_AXIS)
+ common_[a] = common_[a]->common_refpoint (sp->get_bound (d), a);
+ }
while (flip (&d) != LEFT);
}
extremes_ = get_bound_info ();
is_broken_ = (!extremes_[LEFT].note_column_
- || !extremes_[RIGHT].note_column_);
+ || !extremes_[RIGHT].note_column_);
+
+ has_same_beam_
+ = (extremes_[LEFT].stem_ && extremes_[RIGHT].stem_
+ && Stem::get_beam (extremes_[LEFT].stem_) == Stem::get_beam (extremes_[RIGHT].stem_));
-
base_attachments_ = get_base_attachments ();
Drul_array<Real> end_ys
= get_y_attachment_range ();
- scores_ = enumerate_attachments ( end_ys);
+ configurations_ = enumerate_attachments (end_ys);
for (int i = 0; i < columns_.size (); i++)
- encompass_infos_.push (get_encompass_info ( columns_[i]));
+ encompass_infos_.push (get_encompass_info (columns_[i]));
extra_encompass_infos_ = get_extra_encompass_infos ();
valid_ = true;
-
musical_dy_ = 0.0;
Direction d = LEFT;
do
* extremes_[d].slur_head_->relative_coordinate (common_[Y_AXIS], Y_AXIS);
}
while (flip (&d) != LEFT);
-
+
edge_has_beams_
= (extremes_[LEFT].stem_ && Stem::get_beam (extremes_[LEFT].stem_))
|| (extremes_[RIGHT].stem_ && Stem::get_beam (extremes_[RIGHT].stem_));
- has_same_beam_ =
- (extremes_[LEFT].stem_ && extremes_[RIGHT].stem_
- && Stem::get_beam (extremes_[LEFT].stem_) == Stem::get_beam (extremes_[RIGHT].stem_));
-
-
set_next_direction ();
if (is_broken_)
if (!state.valid_)
return;
-
+
state.generate_curves ();
- Bezier best (state.get_best_curve());
+ SCM end_ys = me->get_property ("positions");
+ Bezier best;
+
+ if (is_number_pair (end_ys))
+ {
+ best = state.configurations_[state.get_closest_index (end_ys)]->curve_;
+ }
+ else
+ {
+ best = state.get_best_curve ();
+ }
SCM controls = SCM_EOL;
for (int i = 4; i--;)
{
Offset o = best.control_[i]
- Offset (me->relative_coordinate (state.common_[X_AXIS], X_AXIS),
- me->relative_coordinate (state.common_[Y_AXIS], Y_AXIS));
+ me->relative_coordinate (state.common_[Y_AXIS], Y_AXIS));
controls = scm_cons (ly_offset2scm (o), controls);
}
me->set_property ("control-points", controls);
}
-
Bezier
Slur_score_state::get_best_curve ()
{
- for (int i = 0; i < scores_->size (); i++)
+ for (int i = 0; i < configurations_.size (); i++)
{
- scores_->elem (i).score (*this);
+ configurations_[i]->score (*this);
}
-
+
Real opt = 1e6;
int opt_idx = -1;
- for (int i = 0; i < scores_->size (); i++)
+ for (int i = 0; i < configurations_.size (); i++)
{
- if ((*scores_)[i].score_ < opt)
+ if (configurations_[i]->score_ < opt)
{
- opt = (*scores_)[i].score_;
+ opt = configurations_[i]->score_;
opt_idx = i;
}
}
#if DEBUG_SLUR_SCORING
SCM inspect_quants = slur_->get_property ("inspect-quants");
- if (to_boolean (slur_->get_paper ()
+ if (to_boolean (slur_->get_layout ()
->lookup_variable (ly_symbol2scm ("debug-slur-scoring")))
&& scm_is_pair (inspect_quants))
- {
- Drul_array<Real> ins = ly_scm2interval (inspect_quants);
- Real mindist = 1e6;
- for (int i = 0; i < scores_->size (); i ++)
- {
- Real d =fabs ((*scores_)[i].attachment_[LEFT][Y_AXIS] - ins[LEFT])
- + fabs ((*scores_)[i].attachment_[RIGHT][Y_AXIS] - ins[RIGHT]);
- if (d < mindist)
- {
- opt_idx = i;
- mindist= d;
- }
- }
- if (mindist > 1e5)
- programming_error ("Could not find quant.");
- }
- (*scores_)[opt_idx].score_card_ += to_string ("i%d", opt_idx);
+ opt_idx = get_closest_index (inspect_quants);
+
+ configurations_[opt_idx]->score_card_ += to_string ("=%.2f", opt);
+ configurations_[opt_idx]->score_card_ += to_string ("i%d", opt_idx);
// debug quanting
slur_->set_property ("quant-score",
- scm_makfrom0str ((*scores_)[opt_idx].score_card_.to_str0 ()));
+ scm_makfrom0str (configurations_[opt_idx]->score_card_.to_str0 ()));
+
#endif
- return scores_->elem (opt_idx).curve_;
+ return configurations_[opt_idx]->curve_;
+}
+
+int
+Slur_score_state::get_closest_index (SCM inspect_quants) const
+{
+ Drul_array<Real> ins = ly_scm2interval (inspect_quants);
+
+ int opt_idx = -1;
+ Real mindist = 1e6;
+ for (int i = 0; i < configurations_.size (); i++)
+ {
+ Real d = fabs (configurations_[i]->attachment_[LEFT][Y_AXIS] - ins[LEFT])
+ + fabs (configurations_[i]->attachment_[RIGHT][Y_AXIS] - ins[RIGHT]);
+ if (d < mindist)
+ {
+ opt_idx = i;
+ mindist = d;
+ }
+ }
+ if (mindist > 1e5)
+ programming_error ("can't not find quant");
+ return opt_idx;
}
/*
TODO: should analyse encompasses to determine sensible region, and
should limit slopes available.
- */
+*/
Drul_array<Real>
Slur_score_state::get_y_attachment_range () const
if (extremes_[d].note_column_)
{
end_ys[d] = dir_
- * ((dir_ * (base_attachments_[d][Y_AXIS] + parameters_.region_size_* dir_))
+ * ((dir_ * (base_attachments_[d][Y_AXIS] + parameters_.region_size_ * dir_))
>? (dir_ * (dir_ + extremes_[d].note_column_->extent (common_[Y_AXIS],
- Y_AXIS)[dir_]))
+ Y_AXIS)[dir_]))
>? (dir_ * base_attachments_[-d][Y_AXIS]));
}
else
}
bool
-spanner_less (Spanner *s1, Spanner* s2)
+spanner_less (Spanner *s1, Spanner *s2)
{
Slice b1, b2;
- Direction d = LEFT;
+ Direction d = LEFT;
do
{
b1[d] = s1->get_bound (d)->get_column ()->rank_;
b2[d] = s2->get_bound (d)->get_column ()->rank_;
- } while (flip (&d) != LEFT);
+ }
+ while (flip (&d) != LEFT);
return b2[LEFT] <= b1[LEFT] && b2[RIGHT] >= b1[RIGHT]
&& (b2[LEFT] != b1[LEFT] || b2[RIGHT] != b1[RIGHT]);
}
-
Drul_array<Offset>
Slur_score_state::get_base_attachments () const
{
Real y = 0.0;
if (extremes_[d].note_column_)
{
-
+
/*
fixme: X coord should also be set in this case.
- */
+ */
if (stem
+ && !Stem::is_invisible (stem)
&& extremes_[d].stem_dir_ == dir_
&& Stem::get_beaming (stem, -d)
&& (!spanner_less (slur_, Stem::get_beam (stem))
y = head->extent (common_[Y_AXIS], Y_AXIS)[dir_];
y += dir_ * 0.5 * staff_space_;
- Real pos
- = (y - extremes_[d].staff_->relative_coordinate (common_[Y_AXIS],
- Y_AXIS))
- * 2.0 / staff_space_;
-
- /* start off staffline. */
- if (fabs (pos - my_round (pos)) < 0.2
- && Staff_symbol_referencer::on_staffline (head, (int) rint (pos))
- && Staff_symbol_referencer::line_count (head) - 1 >= rint (pos)
- )
- // TODO: calc from slur thick & line thick, parameter.
- y += 1.5 * staff_space_ * dir_ / 10;
-
- Grob * fh = Note_column::first_head (extremes_[d].note_column_);
- x =
- (fh ? fh->extent (common_[X_AXIS], X_AXIS)
- : extremes_[d].bound_->extent (common_[X_AXIS], X_AXIS))
+ y = move_away_from_staffline (y, head);
+
+ Grob *fh = Note_column::first_head (extremes_[d].note_column_);
+ x
+ = (fh ? fh->extent (common_[X_AXIS], X_AXIS)
+ : extremes_[d].bound_->extent (common_[X_AXIS], X_AXIS))
.linear_combination (CENTER);
}
base_attachment[d] = Offset (x, y);
-
- } while (flip (&d) != LEFT);
+ }
+ while (flip (&d) != LEFT);
do
{
{
x = slur_->get_broken_left_end_align ();
}
- Grob * col = (d == LEFT) ? columns_[0] : columns_.top();
-
+ Grob *col = (d == LEFT) ? columns_[0] : columns_.top ();
+
if (extremes_[-d].bound_ != col)
{
y = robust_relative_extent (col, common_[Y_AXIS], Y_AXIS)[dir_];
- if (get_grob_direction (col) == dir_)
- y -= dir_ ;
+ y += dir_ * 0.5 * staff_space_;
+
+ if (get_grob_direction (col) == dir_
+ && Note_column::get_stem (col)
+ && !Stem::is_invisible (Note_column::get_stem (col)))
+ y -= dir_ * 1.5 * staff_space_;
}
else
y = base_attachment[-d][Y_AXIS];
- base_attachment[d] = Offset (x, y);
+ y = move_away_from_staffline (y, col);
+
+ base_attachment[d] = Offset (x, y);
}
}
while (flip (&d) != LEFT);
+
+ do
+ {
+ for (int a = X_AXIS; a < NO_AXES; a++)
+ {
+ Real &b = base_attachment[d][Axis (a)];
+
+ if (isinf (b) || isnan (b))
+ {
+ programming_error ("slur attachment is inf/nan");
+ b = 0.0;
+ }
+
+ }
+ }
+ while (flip (&d) != LEFT);
+
+
return base_attachment;
}
+Real
+Slur_score_state::move_away_from_staffline (Real y,
+ Grob *on_staff) const
+{
+ Real pos
+ = (y - Staff_symbol_referencer::get_staff_symbol (on_staff)->relative_coordinate (common_[Y_AXIS],
+ Y_AXIS))
+ * 2.0 / staff_space_;
+
+ if (fabs (pos - my_round (pos)) < 0.2
+ && Staff_symbol_referencer::on_staffline (on_staff, (int) rint (pos))
+ && Staff_symbol_referencer::line_count (on_staff) - 1 >= rint (pos))
+ y += 1.5 * staff_space_ * dir_ / 10;
+
+ return y;
+}
+
void
Slur_score_state::generate_curves () const
{
Real r_0 = robust_scm2double (slur_->get_property ("ratio"), 0.33);
- Real h_inf = staff_space_ *scm_to_double (slur_->get_property ("height-limit"));
- for (int i = 0; i < scores_->size (); i++)
- scores_->elem(i).generate_curve (*this, r_0, h_inf);
+ Real h_inf = staff_space_ * scm_to_double (slur_->get_property ("height-limit"));
+ for (int i = 0; i < configurations_.size (); i++)
+ configurations_[i]->generate_curve (*this, r_0, h_inf);
}
-
-
-
-Array<Slur_configuration> *
+Link_array<Slur_configuration>
Slur_score_state::enumerate_attachments (Drul_array<Real> end_ys) const
{
- /*ugh. */
- Array<Slur_configuration> scores;
-
+ Link_array<Slur_configuration> scores;
Drul_array<Offset> os;
os[LEFT] = base_attachments_[LEFT];
{
Interval stem_y = extremes_[d].stem_extent_[Y_AXIS];
stem_y.widen (0.25 * staff_space_);
- if (dir_ == -d
- && stem_y.contains (os[d][Y_AXIS]))
+ if (stem_y.contains (os[d][Y_AXIS]))
{
- os[d][X_AXIS] = extremes_[d].slur_head_extent_[-d]
+ os[d][X_AXIS] = extremes_[d].stem_extent_[X_AXIS][-d]
- d * 0.3;
attach_to_stem[d] = true;
}
- else if (dir_ *extremes_[d].stem_extent_[Y_AXIS][dir_]
- < dir_ * os[d][Y_AXIS]
- && !extremes_[d].stem_extent_[X_AXIS].is_empty ()
- )
-
+ else if (dir_ * extremes_[d].stem_extent_[Y_AXIS][dir_]
+ < dir_ * os[d][Y_AXIS]
+ && !extremes_[d].stem_extent_[X_AXIS].is_empty ())
+
os[d][X_AXIS] = extremes_[d].stem_extent_[X_AXIS].center ();
}
}
while (flip (&d) != LEFT);
- Offset dz;
+ Offset dz;
dz = os[RIGHT] - os[LEFT];
if (dz[X_AXIS] < minimum_length
- || fabs (dz[Y_AXIS] / dz[X_AXIS]) > parameters_.max_slope_
- )
+ || fabs (dz[Y_AXIS] / dz[X_AXIS]) > parameters_.max_slope_)
{
do
{
{
/* Horizontally move tilted slurs a little. Move
more for bigger tilts.
-
+
TODO: parameter */
os[d][X_AXIS]
-= dir_ * extremes_[d].slur_head_extent_.length ()
}
}
while (flip (&d) != LEFT);
-
+
s.attachment_ = os;
- scores.push (s);
-
+ s.index_ = scores.size ();
+
+ scores.push (new Slur_configuration (s));
+
os[RIGHT][Y_AXIS] += dir_ * staff_space_ / 2;
}
}
assert (scores.size () > 0);
- return new Array<Slur_configuration> (scores);
+ return scores;
}
-
Array<Extra_collision_info>
-Slur_score_state::get_extra_encompass_infos ( ) const
+Slur_score_state::get_extra_encompass_infos () const
{
Link_array<Grob> encompasses
- = Pointer_group_interface__extract_grobs (slur_, (Grob *)0,
- "encompass-objects");
+ = extract_grob_array (slur_, ly_symbol2scm ("encompass-objects"));
Array<Extra_collision_info> collision_infos;
- for (int i = encompasses.size (); i--; )
+ for (int i = encompasses.size (); i--;)
{
if (Slur::has_interface (encompasses[i]))
{
- Spanner * small_slur = dynamic_cast<Spanner*> (encompasses[i]);
+ Spanner *small_slur = dynamic_cast<Spanner *> (encompasses[i]);
Bezier b = Slur::get_curve (small_slur);
Offset relative (small_slur->relative_coordinate (common_[X_AXIS], X_AXIS),
for (int k = 0; k < 3; k++)
{
- Direction hdir = Direction (k /2 - 1);
+ Direction hdir = Direction (k / 2 - 1);
/*
Only take bound into account if small slur starts
*/
if (hdir && small_slur->get_bound (hdir) != slur_->get_bound (hdir))
continue;
-
- Offset z = b.curve_point ( k / 2.0);
+ Offset z = b.curve_point (k / 2.0);
z += relative;
Interval yext;
yext[dir_] = z[Y_AXIS] + dir_ * thickness_ * 1.0;
Interval xext (-1, 1);
- xext = xext * (thickness_*2) + z[X_AXIS];
+ xext = xext * (thickness_ * 2) + z[X_AXIS];
Extra_collision_info info (small_slur,
k - 1.0,
xext,
SCM cstyle = g->get_property ("cautionary-style");
parens = ly_c_equal_p (cstyle, ly_symbol2scm ("parentheses"));
}
-
+
SCM accs = g->get_property ("accidentals");
SCM scm_style = g->get_property ("style");
if (!scm_is_symbol (scm_style)
case FLAT:
case DOUBLE_FLAT:
xp = LEFT;
- break ;
+ break;
case SHARP:
xp = 0.5 * dir_;
- break ;
+ break;
case NATURAL:
xp = -dir_;
break;
ye.widen (thickness_ * 0.5);
xe.widen (thickness_ * 1.0);
- Extra_collision_info info (g, xp, xe, ye, penalty);
+ Extra_collision_info info (g, xp, xe, ye, penalty);
collision_infos.push (info);
}
}
projects / lilypond.git / blobdiff