hdr/scorecolumn.hh

   1 /*
   2   sccol.hh -- part of LilyPond
   3
   4   (c) 1996,97 Han-Wen Nienhuys
   5 */
   6
   7 #ifndef SCCOL_HH
   8 #define SCCOL_HH
   9 #include "proto.hh"
  10 #include "varray.hh"
  11 #include "moment.hh"
  12
  13
  14 /**
  15
  16     When typesetting hasn't started on PScore yet, the columns which
  17     contain data have a rhythmical position. Score_column is the type
  18     with a rhythmical time attached to it. The calculation of
  19     idealspacing is done with data in these columns. (notably: the
  20     #durations# field)
  21
  22     */
  23
  24 class Score_column {
  25     friend class Score;
  26     friend class Score_walker;
  27
  28     bool musical_b_;
  29     Moment when_;
  30     void set_breakable();
  31 public:
  32     /// indirection to column
  33     PCol * pcol_l_;
  34
  35     /// length of notes/rests in this column
  36     Array<Moment> durations;
  37
  38     /* *************** */
  39
  40     Moment when() {  return when_; }
  41     Score_column(Moment when);
  42     static int compare(Score_column & c1, Score_column &c2);
  43     void add_duration(Moment );
  44     void preprocess();
  45     bool breakable_b();
  46     bool musical_b() { return musical_b_; }
  47     bool used_b();
  48     void print() const;
  49
  50
  51 };
  52
  53 instantiate_compare(Score_column&, Score_column::compare);
  54
  55 #endif // SCCOL_HH
  56
  57
  58
  59