#include "lily-proto.hh"
#include "directional-spanner.hh"
-#include "stem-info.hh"
/** a beam connects multiple stems.
Beam adjusts the stems its owns to make sure that they reach the
- beam and that point in the correct direction */
+ beam and that point in the correct direction
+
+elt property:
+
+damping: amount of beam slope damping. (int)
+
+should beam slope be damped? 0: no, 1: yes, 100000: horizontal beams
+
+slope_quantisation: 'none, 'normal or 'traditional
+
+*/
class Beam : public Directional_spanner {
public:
- /**
- The beams should be prevented to conflict with the stafflines,
- especially at small slopes.
- */
- enum Quantisation { NONE, NORMAL, TRADITIONAL, TEST };
- enum Dir_algorithm { /* DOWN=-1, UP=1, */ MAJORITY=2, MEAN, MEDIAN };
-
- Link_array<Stem> stems_;
- /// the slope of the beam in posns / point (dimension)
+
+ int stem_count () const;
+ Stem* stem (int) const;
+ Stem* stem_top () const;
+ int visible_stem_count () const;
+ Stem* first_visible_stem () const;
+ Stem* last_visible_stem () const;
+
+ /**
+ the slope of the beam in (staffpositions) per (X-dimension, in PT).
+ UGH. standardise this for once and for all.
+ */
Real slope_f_;
- /// the slope as solved; not quantised or damped
- Real solved_slope_f_;
/// position of leftmost end of beam
Real left_y_;
- /// should beam slope be damped? 0: no, 1: yes, 100000: horizontal beams
- int damping_i_;
- /// should beam pos / slope be quantised? 0: no, 1: yes, 2: traditional
- Quantisation quantisation_;
- /// maximum number of beams (for opening-up of beam-spacing)
- int multiple_i_;
- /// vertical align distance between staffs
- Drul_array<Real> vertical_align_drul_;
+ /**
+ */
- Array<Stem_info> sinfo_;
-
- Beam();
+ Beam ();
void add_stem (Stem*);
void set_grouping (Rhythmic_grouping def, Rhythmic_grouping current);
+ void set_beaming (Beaming_info_list *);
void set_stemlens ();
VIRTUAL_COPY_CONS(Score_element);
+ int multiplicity_i () const;
protected:
- virtual Interval do_width () const;
Offset center () const;
- void set_default_dir ();
- void set_steminfo ();
+ Direction get_default_dir () const;
+ void set_direction (Direction);
+ void set_stem_shorten ();
+ bool auto_knee (SCM gap, bool interstaff_b);
+ bool auto_knees ();
+
virtual void do_pre_processing ();
virtual void do_post_processing ();
- virtual void do_substitute_element_pointer (Score_element*, Score_element*);
virtual void do_print() const;
- virtual void quantise_left_y (bool extend_b);
- virtual Molecule stem_beams (Stem *here, Stem *next, Stem *prev) const;
- virtual void calculate_slope ();
- virtual Real check_stemlengths_f (bool set_b);
- virtual void solve_slope ();
- virtual void quantise_dy ();
virtual Molecule*do_brew_molecule_p () const;
+
+ Molecule stem_beams (Stem *here, Stem *next, Stem *prev) const;
+
+private:
+ void calculate_slope ();
+ Real check_stemlengths_f (bool set_b);
+ void solve_slope ();
+
+ void quantise_left_y (bool extend_b);
+ void quantise_dy ();
+
};
#endif // BEAM_HH