lily/performer.cc

   1 /*
   2   performer.cc -- declare Performer
   3
   4   (c) 1996, 1997 Han-Wen Nienhuys <hanwen@stack.nl>
   5                  Jan Nieuwenhuizen <jan@digicash.com>
   6  */
   7
   8
   9 #include "performer-group-performer.hh"
  10 #include "debug.hh"
  11
  12
  13 IMPLEMENT_IS_TYPE_B(Performer);
  14
  15 Performer::Performer()
  16 {
  17     daddy_perf_l_ = 0;
  18     init_b_ =false;
  19 }
  20
  21 Performer::~Performer()
  22 {
  23 }
  24
  25 void
  26 Performer::do_print() const
  27 {
  28 }
  29
  30 Moment
  31 Performer::get_mom() const
  32 {
  33     return daddy_perf_l_->get_mom();
  34 }
  35
  36 void
  37 Performer::play_event( Midi_item* l )
  38 {
  39     daddy_perf_l_->play_event( l );
  40 }
  41
  42 int
  43 Performer::get_tempo_i()const
  44 {
  45     return daddy_perf_l_->get_tempo_i();
  46 }
  47
  48 void
  49 Performer::print() const
  50 {
  51 #ifndef NPRINT
  52     mtor << "\n" << name() << " {";
  53     do_print();
  54     mtor << "}";
  55 #endif
  56 }
  57
  58 void
  59 Performer::process_requests()
  60 {
  61 }
  62
  63 void
  64 Performer::set( Moment )
  65 {
  66 }
  67
  68 bool
  69 Performer::do_try_request( Request* req_l )
  70 {
  71     return false;
  72 }
  73
  74 bool
  75 Performer::try_request(Request*r)
  76 {
  77     if (!init_b_) {
  78         creation_processing();
  79     }
  80     return do_try_request(r);
  81 }
  82
  83 void
  84 Performer::creation_processing()
  85 {
  86     if (!init_b_) {
  87 /*      if ( daddy_perf_l_ ) {
  88             init_b_ = true;     // ugh. avoid recursion
  89             daddy_perf_l_->creation_processing();
  90             init_b_ = false;
  91         }
  92
  93         */
  94         do_creation_processing();
  95         init_b_ = true;
  96     }
  97 }
  98 void
  99 Performer::do_creation_processing()
 100 {
 101 }
 102
 103 void
 104 Performer::do_removal_processing()
 105 {
 106 }