lily/control-track-performer.cc

   1
   2
   3 #include "warn.hh"
   4 #include "audio-item.hh"
   5 #include "audio-staff.hh"
   6 #include "performer.hh"
   7 #include "string-convert.hh"
   8 #include "lily-version.hh"
   9
  10 #include "translator.icc"
  11
  12 class Control_track_performer : public Performer
  13 {
  14   Audio_staff *control_track_;
  15
  16   void add_text (Audio_text::Type, string);
  17   TRANSLATOR_DECLARATIONS (Control_track_performer);
  18 protected:
  19
  20   virtual void initialize ();
  21   virtual void acknowledge_audio_element (Audio_element_info info);
  22 };
  23
  24
  25 Control_track_performer::Control_track_performer ()
  26 {
  27   control_track_ = 0;
  28 }
  29
  30 void
  31 Control_track_performer::acknowledge_audio_element (Audio_element_info info)
  32 {
  33   if (Audio_tempo *tempo = dynamic_cast<Audio_tempo*> (info.elem_))
  34     {
  35       control_track_->add_audio_item (tempo);
  36     }
  37   if (Audio_time_signature * sig = dynamic_cast<Audio_time_signature *> (info.elem_))
  38     {
  39       control_track_->add_audio_item (sig);
  40     }
  41 }
  42
  43 void
  44 Control_track_performer::add_text (Audio_text::Type text_type, string str)
  45 {
  46   Audio_item *text = new Audio_text (text_type, str);
  47   control_track_->add_audio_item (text);
  48
  49   announce_element (Audio_element_info (text, 0));
  50
  51 }
  52
  53 void
  54 Control_track_performer::initialize ()
  55 {
  56   control_track_ = new Audio_staff;
  57   announce_element (Audio_element_info (control_track_, 0));
  58
  59   string id_string = String_convert::pad_to (gnu_lilypond_version_string (), 30);
  60
  61   add_text (Audio_text::TRACK_NAME, "control track");
  62   add_text (Audio_text::TEXT, "creator: ");
  63   add_text (Audio_text::TEXT, id_string);
  64 }
  65
  66 ADD_TRANSLATOR (Control_track_performer,
  67                 /* doc */
  68                 "",
  69
  70                 /* create */
  71                 "",
  72
  73                 /* read */
  74                 "",
  75
  76                 /* write */
  77                 ""
  78                 );