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/*
beam.hh -- part of LilyPond
(c) 1996,97 Han-Wen Nienhuys
*/
#ifndef BEAM_HH
#define BEAM_HH
#include "proto.hh"
#include "directional-spanner.hh"
#include "plist.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 */
struct Beam: public Directional_spanner {
PointerList<Stem*> stems;
/// the slope of the beam in posns / point (dimension)
Real slope;
/// position of leftmost end of beam
Real left_pos;
/* *************** */
NAME_MEMBERS(Beam);
virtual Interval do_width()const;
Offset center() const;
Spanner *do_break_at(PCol *, PCol *) const;
Beam();
void add(Stem*);
void set_default_dir();
void do_pre_processing();
void do_post_processing();
void do_print() const;
void set_grouping(Rhythmic_grouping def, Rhythmic_grouping current);
void set_stemlens();
~Beam();
private:
Molecule stem_beams(Stem *here, Stem *next, Stem *prev)const;
void solve_slope();
Molecule*brew_molecule_p()const;
};
#endif // BEAM_HH
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