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/*
beam.hh -- part of LilyPond
(c) 1996 Han-Wen Nienhuys
*/
#ifndef BEAM_HH
#define BEAM_HH
#include "proto.hh"
#include "spanner.hh"
#include "list.hh"
/// a beam connects multiple stems
struct Beam: public Spanner {
List<Stem*> stems;
Real slope;
Real left_pos;
/// -1 below heads, +1 above heads.
int dir;
/****************/
virtual Interval width()const;
Spanner *broken_at(const PCol *, const PCol *) const;
Beam();
void add(Stem*);
void process();
void calculate();
void set_default_dir();
void preprocess();
Interval height()const;
void print() const;
void set_stemlens();
private:
void solve_slope();
void brew_molecule();
};
/** Beam adjusts the stems its owns to make sure that they reach the
beam and that point in the correct direction */
#endif // BEAM_HH
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