lily/include/slur-scoring.hh

   1 /*
   2   This file is part of LilyPond, the GNU music typesetter.
   3
   4   Copyright (C) 2004--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
   5
   6   LilyPond is free software: you can redistribute it and/or modify
   7   it under the terms of the GNU General Public License as published by
   8   the Free Software Foundation, either version 3 of the License, or
   9   (at your option) any later version.
  10
  11   LilyPond is distributed in the hope that it will be useful,
  12   but WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14   GNU General Public License for more details.
  15
  16   You should have received a copy of the GNU General Public License
  17   along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #ifndef SLUR_SCORING_HH
  21 #define SLUR_SCORING_HH
  22
  23 #include "box.hh"
  24 #include "std-vector.hh"
  25 #include "lily-guile.hh"
  26 #include "slur-score-parameters.hh"
  27
  28 struct Extra_collision_info
  29 {
  30   Real idx_;
  31   Box extents_;
  32   Real penalty_;
  33   Grob *grob_;
  34   SCM type_;
  35
  36   Extra_collision_info (Grob *g, Real idx, Interval x, Interval y, Real p);
  37   Extra_collision_info ();
  38
  39 };
  40
  41 struct Encompass_info
  42 {
  43   Real x_;
  44   Real stem_;
  45   Real head_;
  46   Encompass_info ()
  47   {
  48     x_ = 0.0;
  49     stem_ = 0.0;
  50     head_ = 0.0;
  51   }
  52   Real get_point (Direction dir) const
  53   {
  54     Interval y;
  55     y.add_point (stem_);
  56     y.add_point (head_);
  57     return y[dir];
  58   }
  59 };
  60
  61 struct Bound_info
  62 {
  63   Box stem_extent_;
  64   Direction stem_dir_;
  65   Item *bound_;
  66   Grob *note_column_;
  67   Grob *slur_head_;
  68   Grob *staff_;
  69   Grob *stem_;
  70   Interval slur_head_x_extent_;
  71   Real staff_space_;
  72
  73   Bound_info ()
  74   {
  75     stem_ = 0;
  76     staff_ = 0;
  77     slur_head_ = 0;
  78     stem_dir_ = CENTER;
  79     note_column_ = 0;
  80   }
  81 };
  82
  83 struct Slur_score_state
  84 {
  85   Spanner *slur_;
  86   Grob *common_[NO_AXES];
  87   bool valid_;
  88   bool edge_has_beams_;
  89   bool is_broken_;
  90   bool has_same_beam_;
  91
  92   Real musical_dy_;
  93   vector<Grob*> columns_;
  94   vector<Encompass_info> encompass_infos_;
  95   vector<Extra_collision_info> extra_encompass_infos_;
  96
  97   Direction dir_;
  98   Slur_score_parameters parameters_;
  99   Drul_array<Bound_info> extremes_;
 100   Drul_array<Offset> base_attachments_;
 101   vector<Slur_configuration*> configurations_;
 102   Real staff_space_;
 103   Real thickness_;
 104
 105   Slur_score_state ();
 106   ~Slur_score_state ();
 107
 108   Bezier get_best_curve ();
 109   void fill (Grob *);
 110   void set_next_direction ();
 111
 112   vector<Offset> generate_avoid_offsets () const;
 113   Drul_array<Bound_info> get_bound_info () const;
 114   void generate_curves () const;
 115   vector<Slur_configuration*> enumerate_attachments (Drul_array<Real> end_ys) const;
 116   Drul_array<Offset> get_base_attachments () const;
 117   Drul_array<Real> get_y_attachment_range () const;
 118   Encompass_info get_encompass_info (Grob *col) const;
 119   vector<Extra_collision_info> get_extra_encompass_infos () const;
 120   Real move_away_from_staffline (Real y, Grob *on_staff) const;
 121   int get_closest_index (SCM inspect_quants) const;
 122
 123   Grob *breakable_bound_item (Direction) const;
 124 };
 125
 126 void set_slur_control_points (Grob *me);
 127
 128 #endif /* SLUR_SCORING_HH */