lily/include/grouping.hh

   1 /*
   2   grouping.hh -- part of GNU LilyPond
   3
   4   (c) 1996--1998 Han-Wen Nienhuys
   5 */
   6
   7 #ifndef GROUPING_HH
   8 #define GROUPING_HH
   9
  10 #include "minterval.hh"
  11 #include "array.hh"
  12
  13 /** data structure which represents rhythmic units   this is a tree. It groupes notes according to rules
  14
  15   TODO Documentation. Unhairing
  16  */
  17 struct Rhythmic_grouping {
  18     Array<Rhythmic_grouping*> children;
  19     MInterval *interval_;
  20
  21
  22     Array<MInterval> intervals();
  23     MInterval interval() const;
  24     Moment length() const;
  25     void intersect (MInterval);
  26
  27     void operator=(Rhythmic_grouping const&);
  28     Rhythmic_grouping (Rhythmic_grouping const&);
  29     Rhythmic_grouping (MInterval, int n=1);
  30     Rhythmic_grouping();
  31     Rhythmic_grouping (Array<Rhythmic_grouping*>);
  32     ~Rhythmic_grouping();
  33
  34     void add_child (Moment start, Moment len);
  35     bool child_fit_b (Moment start);
  36     void split (Rhythmic_grouping r);
  37     void split (Array<MInterval>);
  38     void split (int n);
  39
  40     void print() const;
  41     void OK() const;
  42
  43     Array<int> generate_beams (Array<int>, int&);
  44
  45     /** multiply self to span #i#.
  46       In implementation, this isn't really const, but conceptually it is.
  47       */
  48     void extend (MInterval i) const;
  49     void translate (Moment);
  50 private:
  51     void init();
  52     void junk();
  53     void copy (Rhythmic_grouping const&);
  54 };
  55
  56
  57 Rhythmic_grouping parse_grouping (Array<int> beat_i_arr, Array<Moment> elt_length_arr);
  58
  59
  60 #endif