/*
stem.hh -- declare Stem
- (c) 1996--1999 Han-Wen Nienhuys
+ (c) 1996--2000 Han-Wen Nienhuys
*/
#ifndef STEM_HH
#define STEM_HH
+
#include "item.hh"
#include "array.hh"
#include "moment.hh"
#include "molecule.hh"
-#include "staff-symbol-referencer.hh"
+#include "stem-info.hh"
/**the rule attached to the ball.
takes care of:
*/
-// todo: remove baseclass Staff_symbol_referencer, since stem
-// can be across a staff.
-class Stem : public Item, public Staff_symbol_referencer {
+class Stem : public Item
+{
+public:
+ static SCM scheme_molecule (SCM);
+
- /**extent of the stem (positions).
- fractional, since Beam has to adapt them.
- */
- Drul_array<Real> yextent_drul_;
-public:
- Link_array<Note_head> head_l_arr_;
- Link_array<Rest> rest_l_arr_;
-
/// log of the duration. Eg. 4 -> 16th note -> 2 flags
- int flag_i_;
+ int flag_i () const;
+ int beam_count (Direction) const;
+ void set_beaming (int, Direction d);
/**
don't print flag when in beam.
our beam, for aligning abbrev flags
*/
- Beam* beam_l_;
-
- Drul_array<int> beams_i_drul_;
+ Beam* beam_l () const;
+ Note_head * first_head () const;
+ Drul_array<Note_head*> extremal_heads () const;
- void set_direction (Direction d);
- /// direction stem (that's me)
- Direction dir_;
+ Score_element * support_head () const;
+ Stem (SCM);
-
- Stem ();
-
/// ensure that this Stem also encompasses the Notehead #n#
void add_head (Rhythmic_head*n);
- Real hpos_f () const;
+ Stem_info calc_stem_info () const;
+
Real chord_start_f () const;
-
+ Direction get_direction () const;
int type_i () const;
-
- void do_print() const;
void set_stemend (Real);
Direction get_default_dir() const;
- Direction get_dir () const;
int get_center_distance(Direction) const;
-
- void set_default_stemlen();
- void set_default_extents();
- void set_noteheads();
-
- Real stem_length_f() const;
- Real stem_end_f() const;
- Real stem_begin_f() const;
- Real note_delta_f () const;
+ int heads_i () const;
bool invisible_b() const;
/// heads that the stem encompasses (positions)
- Interval_t<int> head_positions() const;
+ Interval head_positions() const;
protected:
+ friend class Stem_tremolo; // ugh.
+ Real get_default_stem_end_position () const;
+ void position_noteheads();
+
+ Real stem_end_position () const;
+ static Real off_callback (Score_element const*, Axis);
Molecule flag () const;
- virtual void do_substitute_element_pointer (Score_element*,Score_element*);
- virtual void do_pre_processing();
- virtual Interval do_width() const;
- virtual Molecule* do_brew_molecule_p() const;
+
+ virtual void before_line_breaking();
+ static Interval dim_callback (Score_element const*,Axis);
+ Molecule do_brew_molecule() const;
void set_spacing_hints () ;
};