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   vector<Audio_item*> texts_;
  16
  17   void add_text (Audio_text::Type, string);
  18   TRANSLATOR_DECLARATIONS (Control_track_performer);
  19 protected:
  20
  21   virtual void initialize ();
  22   virtual void acknowledge_audio_element (Audio_element_info info);
  23 };
  24
  25
  26 Control_track_performer::Control_track_performer ()
  27 {
  28   control_track_ = 0;
  29 }
  30
  31 void
  32 Control_track_performer::acknowledge_audio_element (Audio_element_info info)
  33 {
  34   if (Audio_tempo *tempo = dynamic_cast<Audio_tempo*> (info.elem_))
  35     {
  36       control_track_->add_audio_item (tempo);
  37     }
  38   if (Audio_time_signature * sig = dynamic_cast<Audio_time_signature *> (info.elem_))
  39     {
  40       control_track_->add_audio_item (sig);
  41     }
  42 }
  43
  44 void
  45 Control_track_performer::add_text (Audio_text::Type text_type, string str)
  46 {
  47   Audio_item *text = new Audio_text (text_type, str);
  48   control_track_->add_audio_item (text);
  49   texts_.push_back (text);
  50
  51   announce_element (Audio_element_info (text, 0));
  52
  53 }
  54
  55 void
  56 Control_track_performer::initialize ()
  57 {
  58   control_track_ = new Audio_staff;
  59   announce_element (Audio_element_info (control_track_, 0));
  60
  61   string id_string = String_convert::pad_to (gnu_lilypond_version_string (), 30);
  62
  63   add_text (Audio_text::TRACK_NAME, "control track");
  64   add_text (Audio_text::TEXT, "creator: ");
  65   add_text (Audio_text::TEXT, id_string);
  66 }
  67
  68 ADD_TRANSLATOR (Control_track_performer,
  69                 /* doc */
  70                 "",
  71
  72                 /* create */
  73                 "",
  74
  75                 /* read */
  76                 "",
  77
  78                 /* write */
  79                 ""
  80                 );