hdr/midi-event.hh

   1 //
   2 // midi-event.hh -- declare midi_event
   3 //
   4 // copyright 1997 Jan Nieuwenhuizen <jan@digicash.com>
   5
   6 #ifndef MIDI_EVENT_HH
   7 #define MIDI_EVENT_HH
   8
   9
  10 // should these:
  11 // * be Midi_items
  12 // * be Voice_elements/requests
  13 // * get a name-change
  14 // ?
  15
  16 /// (midi_event)
  17 class Midi_event {
  18 public:
  19         Midi_event();
  20         virtual ~Midi_event();
  21
  22         virtual String mudela_str(); // = 0;
  23         virtual void output_mudela( Lily_stream& lily_stream_r );
  24         virtual Moment mom();
  25
  26 protected:
  27         String mudela_str_;
  28 };
  29
  30 class Midi_key : public Midi_event {
  31 public:
  32         Midi_key( int accidentals_i, int minor );
  33         virtual ~Midi_key();
  34
  35         String notename_str( int pitch_i );
  36
  37 private:
  38         int accidentals_i_;
  39         int minor_i_;
  40         int key_i_;
  41 };
  42
  43 class Midi_note : public Midi_event {
  44     public:
  45         int const c0_pitch_i_c_ = 60;
  46
  47         Midi_note( Midi_key* midi_key_l, Midi_time* midi_time_l, int division_1_i, int pitch_i, int time_i );
  48         virtual ~Midi_note();
  49
  50         virtual Moment mom();
  51
  52 private:
  53         Duration dur_;
  54 };
  55
  56 class Midi_tempo : public Midi_event {
  57 public:
  58         Midi_tempo( int useconds_per_4_i );
  59         virtual ~Midi_tempo();
  60
  61         int get_tempo_i( Moment moment );
  62
  63 private:
  64         int useconds_per_4_i_;
  65         Real seconds_per_1_f_;
  66 };
  67
  68 class Midi_time : public Midi_event {
  69 public:
  70         Midi_time( int num_i, int den_i, int division_4_i, int count_32_i );
  71         virtual ~Midi_time();
  72
  73         Duration i2_dur( int time_i, int division_1_i );
  74         int clocks_1_i();
  75
  76 private:
  77         Real sync_f_;
  78         Duration sync_dur_;
  79         int clocks_1_i_;
  80         int num_i_;
  81         int den_i_;
  82 };
  83
  84 #endif // MIDI_EVENT_HH
  85