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/*
stem.hh -- declare Stem
(c) 1996,97 Han-Wen Nienhuys
*/
#ifndef STEM_HH
#define STEM_HH
#include "item.hh"
#include "varray.hh"
#include "moment.hh"
/**the rule attached to the ball.
takes care of:
\begin{itemize}
\item the rule
\item the flag
\item up/down position.
\end{itemize}
*/
struct Stem : Item {
/// heads that the stem encompasses (positions)
int minnote, maxnote;
/// false if in beam
bool print_flag;
int beams_left;
int beams_right;
/// needed for determining direction/length
int staff_center;
/**extent of the stem (positions).
fractional, since Beam has to adapt them.
*/
Real bot, top;
Real stemlen;
/// flagtype? 4 none, 8 8th flag, 0 = beam.
int flag;
/**
geen gedonder, jij gaat onder.
-1 stem points down, +1: stem points up
*/
int dir;
Real stem_xoffset;
Array<Notehead*> heads;
/* *************** */
Stem(int center); //, Moment duration);
/// ensure that this Stem also encompasses the Notehead #n#
void add(Notehead*n);
NAME_MEMBERS(Stem);
Real hindex()const;
void do_print() const;
void set_stemend(Real);
int get_default_dir();
void set_default_dir();
void set_default_stemlen();
void set_default_extents();
void set_noteheads();
void do_pre_processing();
Interval width() const;
Molecule* brew_molecule_p() const;
};
#endif
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