2 stem.hh -- declare Stem
4 (c) 1996--1999 Han-Wen Nienhuys
12 #include "molecule.hh"
13 #include "staff-symbol-referencer.hh"
15 /**the rule attached to the ball.
21 \item up/down position.
24 should move beam_{left, right} into Beam
28 Stem size depends on flag.
32 beam_dir: direction of the beam (int)
34 dir_force: is direction explicitely specified? (bool)
36 /// how many abbrev beam don't reach stem?
42 // todo: remove baseclass Staff_symbol_referencer, since stem
43 // can be across a staff.
44 class Stem : public Item, public Staff_symbol_referencer {
46 /**extent of the stem (positions).
47 fractional, since Beam has to adapt them.
49 Drul_array<Real> yextent_drul_;
51 public: // urg, autobeamer needs to know if there are (only) rests here?
52 Link_array<Note_head> head_l_arr_;
53 Link_array<Rest> rest_l_arr_;
56 /// log of the duration. Eg. 4 -> 16th note -> 2 flags
60 don't print flag when in beam.
61 our beam, for aligning abbrev flags
65 Drul_array<int> beams_i_drul_;
67 void set_direction (Direction d);
68 /// direction stem (that's me)
74 /// ensure that this Stem also encompasses the Notehead #n#
75 void add_head (Rhythmic_head*n);
78 Real chord_start_f () const;
82 void do_print() const;
83 void set_stemend (Real);
84 Direction get_default_dir() const;
85 Direction get_dir () const;
87 int get_center_distance(Direction) const;
89 void set_default_stemlen();
90 void set_default_extents();
93 Real stem_length_f() const;
94 Real stem_end_f() const;
95 Real stem_begin_f() const;
96 Real note_delta_f () const;
98 bool invisible_b() const;
100 /// heads that the stem encompasses (positions)
101 Interval_t<int> head_positions() const;
104 Molecule flag () const;
105 virtual void do_substitute_element_pointer (Score_element*,Score_element*);
106 virtual void do_pre_processing();
107 virtual Interval do_width() const;
108 virtual Molecule* do_brew_molecule_p() const;
110 void set_spacing_hints () ;