lily/include/slur-scoring.hh

   1 /*
   2   slur-scoring.hh -- declare Slur_score_parameters
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 2004--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
   7 */
   8
   9 #ifndef SLUR_SCORING_HH
  10 #define SLUR_SCORING_HH
  11
  12 #include "box.hh"
  13 #include "lily-proto.hh"
  14 #include "std-vector.hh"
  15 #include "lily-guile.hh"
  16
  17 struct Slur_score_parameters
  18 {
  19   int region_size_;
  20   Real head_encompass_penalty_;
  21   Real stem_encompass_penalty_;
  22   Real closeness_factor_;
  23   Real edge_attraction_factor_;
  24   Real same_slope_penalty_;
  25   Real steeper_slope_factor_;
  26   Real non_horizontal_penalty_;
  27   Real max_slope_;
  28   Real max_slope_factor_;
  29   Real extra_object_collision_penalty_;
  30   Real accidental_collision_;
  31   Real free_slur_distance_;
  32   Real free_head_distance_;
  33   Real extra_encompass_free_distance_;
  34   Real absolute_closeness_measure_;
  35   Real edge_slope_exponent_;
  36   Real head_slur_distance_max_ratio_;
  37   Real head_slur_distance_factor_;
  38
  39   void fill (Grob *him);
  40 };
  41
  42 struct Extra_collision_info
  43 {
  44   Real idx_;
  45   Box extents_;
  46   Real penalty_;
  47   Grob *grob_;
  48   SCM type_;
  49
  50   Extra_collision_info (Grob *g, Real idx, Interval x, Interval y, Real p);
  51   Extra_collision_info ();
  52
  53 };
  54
  55 struct Encompass_info
  56 {
  57   Real x_;
  58   Real stem_;
  59   Real head_;
  60   Encompass_info ()
  61   {
  62     x_ = 0.0;
  63     stem_ = 0.0;
  64     head_ = 0.0;
  65   }
  66   Real get_point (Direction dir) const
  67   {
  68     Interval y;
  69     y.add_point (stem_);
  70     y.add_point (head_);
  71     return y[dir];
  72   }
  73 };
  74
  75 struct Bound_info
  76 {
  77   Box stem_extent_;
  78   Direction stem_dir_;
  79   Item *bound_;
  80   Grob *note_column_;
  81   Grob *slur_head_;
  82   Grob *staff_;
  83   Grob *stem_;
  84   Interval slur_head_x_extent_;
  85   Real staff_space_;
  86
  87   Bound_info ()
  88   {
  89     stem_ = 0;
  90     staff_ = 0;
  91     slur_head_ = 0;
  92     stem_dir_ = CENTER;
  93     note_column_ = 0;
  94   }
  95 };
  96
  97 struct Slur_score_state
  98 {
  99   Spanner *slur_;
 100   Grob *common_[NO_AXES];
 101   bool valid_;
 102   bool edge_has_beams_;
 103   bool is_broken_;
 104   bool has_same_beam_;
 105
 106   Real musical_dy_;
 107   Link_array__Grob_ columns_;
 108   std::vector<Encompass_info> encompass_infos_;
 109   std::vector<Extra_collision_info> extra_encompass_infos_;
 110
 111   Direction dir_;
 112   Slur_score_parameters parameters_;
 113   Drul_array<Bound_info> extremes_;
 114   Drul_array<Offset> base_attachments_;
 115   Link_array__Slur_configuration_ configurations_;
 116   Real staff_space_;
 117   Real thickness_;
 118
 119   Slur_score_state ();
 120   ~Slur_score_state ();
 121
 122   Bezier get_best_curve ();
 123   void fill (Grob *);
 124   void set_next_direction ();
 125
 126   std::vector<Offset> generate_avoid_offsets () const;
 127   Drul_array<Bound_info> get_bound_info () const;
 128   void generate_curves () const;
 129   Link_array__Slur_configuration_ enumerate_attachments (Drul_array<Real> end_ys) const;
 130   Drul_array<Offset> get_base_attachments () const;
 131   Drul_array<Real> get_y_attachment_range () const;
 132   Encompass_info get_encompass_info (Grob *col) const;
 133   std::vector<Extra_collision_info> get_extra_encompass_infos () const;
 134   Real move_away_from_staffline (Real y, Grob *on_staff) const;
 135   int get_closest_index (SCM inspect_quants) const;
 136 };
 137
 138 void set_slur_control_points (Grob *me);
 139
 140 #endif /* SLUR_SCORING_HH */