/*
- tie-column.cc -- implement Tie_column
+ This file is part of LilyPond, the GNU music typesetter.
- source file of the GNU LilyPond music typesetter
+ Copyright (C) 2000--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
- (c) 2000--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
-*/
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
-#include "tie-column.hh"
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
-#include <math.h>
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
+*/
-#include <map>
-#include <set>
+#include "tie-column.hh"
+#include <cmath>
-#include "stencil.hh"
-#include "stem.hh"
+#include "output-def.hh"
#include "skyline.hh"
-#include "staff-symbol-referencer.hh"
#include "warn.hh"
#include "paper-column.hh"
#include "spanner.hh"
#include "pointer-group-interface.hh"
#include "tie.hh"
#include "directional-element-interface.hh"
-#include "rhythmic-head.hh"
+#include "tie-formatting-problem.hh"
+#include "tie-configuration.hh"
+
+using namespace std;
void
-Tie_column::add_tie (Grob *me, Grob *tie)
+Tie_column::add_tie (Grob *tc, Grob *tie)
{
+ Spanner *me = dynamic_cast<Spanner *> (tc);
+
if (tie->get_parent (Y_AXIS)
&& Tie_column::has_interface (tie->get_parent (Y_AXIS)))
return;
- if (!Pointer_group_interface::count (me, ly_symbol2scm ("ties")))
+ if (!me->get_bound (LEFT)
+ || (Paper_column::get_rank (me->get_bound (LEFT)->get_column ())
+ > Paper_column::get_rank (dynamic_cast<Spanner *> (tie)->get_bound (LEFT)->get_column ())))
{
- dynamic_cast<Spanner *> (me)->set_bound (LEFT, Tie::head (tie, LEFT));
- dynamic_cast<Spanner *> (me)->set_bound (RIGHT, Tie::head (tie, RIGHT));
+ me->set_bound (LEFT, Tie::head (tie, LEFT));
+ me->set_bound (RIGHT, Tie::head (tie, RIGHT));
}
tie->set_parent (me, Y_AXIS);
Pointer_group_interface::add_grob (me, ly_symbol2scm ("ties"), tie);
- tie->add_dependency (me);
-}
-
-void
-Tie_column::set_directions (Grob *me)
-{
- if (!to_boolean (me->get_property ("positioning-done")))
- {
- me->set_property ("positioning-done", SCM_BOOL_T);
- new_directions (me);
- }
-}
-
-int
-Tie::compare (Grob *const &s1,
- Grob *const &s2)
-{
- return sign (Tie::get_position (s1) - Tie::get_position (s2));
-}
-
-MAKE_SCHEME_CALLBACK (Tie_column, after_line_breaking, 1);
-SCM
-Tie_column::after_line_breaking (SCM smob)
-{
- set_directions (unsmob_grob (smob));
- return SCM_UNSPECIFIED;
}
/*
SCM
Tie_column::before_line_breaking (SCM smob)
{
- Spanner *me = dynamic_cast<Spanner *> (unsmob_grob (smob));
+ Spanner *me = dynamic_cast<Spanner *> (Grob::unsmob (smob));
for (SCM s = me->get_property ("ties"); scm_is_pair (s); s = scm_cdr (s))
{
- Spanner *tie = dynamic_cast<Spanner *> (unsmob_grob (scm_car (s)));
- Direction dir = LEFT;
- do
- {
- if (dir * tie->get_bound (dir)->get_column ()->get_rank ()
- > dir * me->get_bound (dir)->get_column ()->get_rank ())
- me->set_bound (dir, Tie::head (tie, dir));
- }
- while (flip (&dir) != LEFT);
+ Spanner *tie = dynamic_cast<Spanner *> (Grob::unsmob (scm_car (s)));
+ for (LEFT_and_RIGHT (dir))
+ {
+ if (dir * tie->get_bound (dir)->get_column ()->get_rank ()
+ > dir * me->get_bound (dir)->get_column ()->get_rank ())
+ me->set_bound (dir, Tie::head (tie, dir));
+ }
}
- return SCM_UNSPECIFIED;
-}
-
-
-
-void
-set_chord_outlines (Drul_array< Array<Skyline_entry> > *skyline_drul,
- Link_array<Grob> ties,
- Grob *common)
-{
- Direction d = LEFT;
-
- Real staff_space = Staff_symbol_referencer::staff_space (ties[0]);
- do
- {
- Array<Box> boxes;
- Interval x_union;
-
- Grob *stem = 0;
- for (int i = 0; i < ties.size (); i++)
- {
- Spanner *tie = dynamic_cast<Spanner*> (ties[i]);
-
- Grob *head = Tie::head (tie, d);
- if (!head)
- continue;
-
- if (!stem)
- stem = unsmob_grob (head->get_object ("stem"));
-
- Real p = Tie::get_position (tie);
- Interval y ((p-1) * 0.5 * staff_space,
- (p+1) * 0.5 * staff_space);
-
- Interval x = head->extent (common, X_AXIS);
- boxes.push (Box (x, y));
- x_union.unite (x);
- }
-
- (*skyline_drul)[d] = empty_skyline (-d);
-
- Spanner *tie = dynamic_cast<Spanner*> (ties[0]);
- if (tie->get_bound (d)->break_status_dir ())
- {
- Real x = robust_relative_extent (tie->get_bound (d),
- common,
- X_AXIS)[-d];
-
- (*skyline_drul)[d].elem_ref (0).height_ = x;
- }
-
- for (int i = 0; i < boxes.size (); i++)
- insert_extent_into_skyline (&skyline_drul->elem_ref (d),
- boxes[i], Y_AXIS, -d);
- if (stem
- && !Stem::is_invisible (stem))
- {
- Interval x;
- x.add_point (stem->relative_coordinate (common, X_AXIS));
- x.widen (staff_space / 20); // ugh.
- Interval y;
- y.add_point (Stem::stem_end_position (stem) * staff_space * .5);
-
- Direction stemdir = Stem::get_direction (stem);
- y.add_point (Stem::head_positions (stem)[-stemdir]
- * staff_space * .5);
-
- insert_extent_into_skyline (&skyline_drul->elem_ref (d),
- Box (x,y), Y_AXIS, -d);
-
-
-
- if (d == LEFT)
- {
- Box flag_box = Stem::get_translated_flag (stem).extent_box ();
- flag_box.translate( Offset (x[RIGHT], X_AXIS));
- insert_extent_into_skyline (&skyline_drul->elem_ref (d),
- flag_box,
- Y_AXIS, -d);
- }
- }
-
-
-
- Direction updowndir = DOWN;
- do
- {
- Interval x ;
- if (boxes.size())
- {
- Box b = boxes.boundary (updowndir, 0);
- x = b[X_AXIS];
- x[-d] = b[X_AXIS].linear_combination (-d / 2);
- }
-
- if (!x.is_empty ())
- (*skyline_drul)[d].boundary (updowndir, 0).height_ = x[-d];
- }
- while (flip (&updowndir) != DOWN);
-
- for (int i = 0; i < ties.size (); i++)
- {
- Spanner *tie = dynamic_cast<Spanner*> (ties[i]);
- Grob *head = Tie::head (tie, d);
- if (!head)
- continue;
-
- Grob *dots = unsmob_grob (head->get_object ("dot"));
- if (dots && d == LEFT)
- {
- Interval x = dots->extent (common, X_AXIS);
- Real p = Staff_symbol_referencer::get_position (dots);
-
- Interval y (-1,1);
- y *= (staff_space /4);
- y.translate (p * staff_space * .5);
-
- insert_extent_into_skyline (&skyline_drul->elem_ref (d),
- Box (x,y), Y_AXIS, -d);
- }
- }
-
- }
- while (flip (&d) != LEFT);
+ return SCM_UNSPECIFIED;
}
-
-void
-Tie_column::new_directions (Grob *me)
+MAKE_SCHEME_CALLBACK (Tie_column, calc_positioning_done, 1)
+SCM
+Tie_column::calc_positioning_done (SCM smob)
{
+ Grob *me = Grob::unsmob (smob);
extract_grob_set (me, "ties", ro_ties);
- Link_array<Grob> ties (ro_ties);
+ vector<Grob *> ties (ro_ties);
if (!ties.size ())
- return;
+ return SCM_BOOL_T;
- if (ties.size() == 1)
- {
- Tie::set_default_control_points (ties[0]);
- return ;
- }
-
- ties.sort (&Tie::compare);
+ me->set_property ("positioning-done", SCM_BOOL_T);
+ vector_sort (ties, Tie::less);
- Array<Tie_configuration> tie_configs;
- for (int i = 0; i < ties.size (); i++)
- {
- Tie_configuration conf;
- conf.dir_ = get_grob_direction (ties[i]);
- conf.position_ = Tie::get_position (ties[i]);
- tie_configs.push (conf);
- }
+ Tie_formatting_problem problem;
+ problem.from_ties (ties);
SCM manual_configs = me->get_property ("tie-configuration");
- bool manual_override = false;
- int k = 0;
- for (SCM s = manual_configs;
- scm_is_pair (s) && k < tie_configs.size(); s = scm_cdr (s))
- {
- SCM entry = scm_car (s);
- if (!scm_is_pair (entry))
- continue;
-
- manual_override = true;
- tie_configs[k].position_ = robust_scm2double (scm_car (entry), tie_configs[k].position_);
- tie_configs[k].dir_ = Direction (robust_scm2int (scm_cdr (entry), tie_configs[k].dir_));
- k ++;
- }
+ problem.set_manual_tie_configuration (manual_configs);
- if (!tie_configs[0].dir_)
- tie_configs[0].dir_ = DOWN;
- if (!tie_configs.top().dir_)
- tie_configs.top().dir_ = UP;
-
- /*
- Seconds
- */
- for (int i = 1; i < tie_configs.size(); i++)
+ Ties_configuration base = problem.generate_optimal_configuration ();
+ for (vsize i = 0; i < base.size (); i++)
{
- if (fabs (tie_configs[i-1].position_ - tie_configs[i].position_) <= 1)
- {
- if (!tie_configs[i-1].dir_)
- tie_configs[i-1].dir_ = DOWN;
- if (!tie_configs[i].dir_)
- tie_configs[i].dir_ = UP;
- }
- }
+ SCM cp = Tie::get_control_points (ties[i], problem.common_x_refpoint (),
+ base[i],
+ problem.details_);
- for (int i = 1; i < tie_configs.size() - 1; i++)
- {
- if (tie_configs[i].dir_)
- continue;
+ ties[i]->set_property ("control-points", cp);
+ set_grob_direction (ties[i],
+ base[i].dir_);
- Direction position_dir = (Direction) sign (tie_configs[i].position_);
- if (!position_dir)
- position_dir = DOWN;
-
- tie_configs[i].dir_ = position_dir;
- }
-
- Grob *common = me;
- for (int i = 0; i < ties.size (); i++)
- {
- common = dynamic_cast<Spanner*> (ties[i])->get_bound (LEFT)->common_refpoint (common, X_AXIS);
- common = dynamic_cast<Spanner*> (ties[i])->get_bound (RIGHT)->common_refpoint (common, X_AXIS);
- }
-
- Drul_array< Array<Skyline_entry> > skylines;
- set_chord_outlines (&skylines, ties, common);
-
- Tie_details details;
- details.init (ties[0]);
-
- /*
- Let the ties flow out, according to our single-tie formatting.
- */
- if (!manual_override)
- {
- Tie::get_configuration (ties[0], common, &tie_configs.elem_ref (0),
- &skylines,
- details
- );
- Tie::get_configuration (ties.top (), common,
- &tie_configs.elem_ref (tie_configs.size()-1),
- &skylines,
- details
- );
- }
-
- /*
- Calculate final width and shape of the ties.
- */
- Real staff_space = Staff_symbol_referencer::staff_space (ties[0]);
- Real gap = robust_scm2double (ties[0]->get_property ("x-gap"), 0.2);
- for (int i = 0; i < ties.size(); i++)
- {
- if (!manual_override
- && (i == 0 || i == ties.size () -1))
- continue;
-
- Tie_configuration conf = tie_configs[i];
- conf = tie_configs[i];
-
- Real line_dy = 0.0;
- bool on_line = Staff_symbol_referencer::on_staffline (ties[0],
- int (rint (conf.position_)));
- if (on_line)
- line_dy = - sign (conf.height (details) - 0.6 * staff_space)
- * 0.2 * staff_space * conf.dir_;
-
- Real y = conf.position_ * staff_space * 0.5
- + line_dy;
- conf.attachment_x_
- = get_skyline_attachment (skylines, y);
- conf.attachment_x_.intersect (get_skyline_attachment (skylines,
- y + conf.dir_ * staff_space * .5));
-
-
- conf.delta_y_ += line_dy;
- conf.attachment_x_.widen (-gap);
- if (!on_line
- && Staff_symbol_referencer::staff_radius (ties[0]) * staff_space > y)
- conf.center_tie_vertically (details);
-
- tie_configs[i] = conf;
- }
-
- /*
- Try to shift small ties into available spaces.
- */
- if (!manual_override)
- {
- set<int> positions_taken;
- for (int i = 0; i < tie_configs.size (); i++)
- positions_taken.insert (int (rint (tie_configs[i].position_)));
-
- for (int i = 0; i < tie_configs.size (); i++)
- {
- Tie_configuration * conf = &tie_configs.elem_ref (i);
-
- /*
- on staff line and small enough, translate a little further
- */
- Real h = conf->height (details);
- bool next_free = positions_taken.find (int (rint (conf->position_ + conf->dir_)))
- == positions_taken.end ();
- bool on_line = Staff_symbol_referencer::on_staffline (ties[0],
- int (rint (conf->position_ + conf->delta_y_)));
- if (next_free)
- if (on_line && h < 0.4 * staff_space)
- {
- positions_taken.insert (int (rint (conf->position_ + conf->dir_)));
- conf->delta_y_ += 0.2 * staff_space * conf->dir_;
- }
- else if (!on_line && h > 0.6 * staff_space)
- {
- positions_taken.insert (int (rint (conf->position_ + conf->dir_)));
- conf->delta_y_ += 0.5 * staff_space * conf->dir_;
- }
- }
- }
-
- for (int i = 0; i < ties.size(); i++)
- {
- Tie::set_control_points (ties[i], common, tie_configs[i],
- details
- );
- set_grob_direction (ties[i], tie_configs[i].dir_);
+ problem.set_debug_scoring (base);
}
+ return SCM_BOOL_T;
}
+ADD_INTERFACE (Tie_column,
+ "Object that sets directions of multiple ties in a tied"
+ " chord.",
+
+ /* properties */
+ "positioning-done "
+ "tie-configuration "
+ "ties "
+ );
-ADD_INTERFACE (Tie_column, "tie-column-interface",
- "Object that sets directions of multiple ties in a tied chord",
- "positioning-done "
- "tie-configuration "
- );
projects / lilypond.git / blobdiff