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.
30 class Stem : public Item, public Staff_symbol_referencer {
31 Drul_array<Real> yextent_drul_;
33 /**extent of the stem (positions).
34 fractional, since Beam has to adapt them.
39 geen gedonder, jij gaat onder.
40 -1 stem points down, +1: stem points up
44 Link_array<Note_head> head_l_arr_;
45 Link_array<Rest> rest_l_arr_;
48 /// how many abbrev beam don't reach stem?
51 /// log of the duration. Eg. 4 -> 16th note -> 2 flags
55 don't print flag when in beam.
56 our beam, for aligning abbrev flags
60 Drul_array<int> beams_i_drul_;
62 /// maximum number of beams
65 /// direction stem (that's me)
68 /// is direction explicitely specified?
71 /// direction of the beam
75 /// ensure that this Stem also encompasses the Notehead #n#
76 void add_head (Rhythmic_head*n);
81 Real chord_start_f () const;
85 void do_print() const;
86 void set_stemend (Real);
87 Direction get_default_dir() const;
88 Direction get_dir () const;
90 int get_center_distance(Direction) const;
91 void set_default_dir();
92 void set_default_stemlen();
93 void set_default_extents();
96 Real stem_length_f() const;
97 Real stem_end_f() const;
98 Real stem_begin_f() const;
99 Real note_delta_f () const;
101 bool invisible_b() const;
103 /// heads that the stem encompasses (positions)
104 Interval_t<int> head_positions() const;
107 virtual void do_substitute_element_pointer (Score_element*,Score_element*);
108 virtual void do_pre_processing();
109 virtual Interval do_width() const;
110 virtual Molecule* do_brew_molecule_p() const;