2 grouping.hh -- part of LilyPond
4 (c) 1996,97 Han-Wen Nienhuys
11 #include "interval.hh"
14 typedef Interval_t<Moment> MInterval;
16 /// data structure which represents rhythmic units
17 struct Rhythmic_grouping {
19 Array<Rhythmic_grouping*> children;
24 Array<MInterval> intervals();
25 MInterval interval()const;
26 Moment length() const;
27 void intersect(MInterval);
29 void operator=(Rhythmic_grouping const&);
30 Rhythmic_grouping(Rhythmic_grouping const&);
31 Rhythmic_grouping(MInterval, int n=1);
33 Rhythmic_grouping(Array<Rhythmic_grouping*>);
36 void add_child(Moment start, Moment len);
38 void split(Rhythmic_grouping r);
39 void split(Array<MInterval>);
45 Array<int> generate_beams(Array<int>, int&);
47 /// multiply self to span #i#
48 void extend(MInterval i);
49 void translate(Moment);
53 void copy(Rhythmic_grouping const&);
56 this is a tree. It groupes notes according to rules