Method ExportAudioDialog

src/export/ExportAudioDialog.cpp:161–255

END_EVENT_TABLE()

ExportAudioDialog::ExportAudioDialog(wxWindow* parent,
                                     AudacityProject& project,
                                     const wxString& defaultName,
                                     const wxString& defaultFormat,
                                     ExportMode mode)
   : wxDialogWrapper(parent, wxID_ANY, XO("Export Audio"))
   , mProject(project)
{
   assert(!ExportUtils::FindExportWaveTracks(TrackList::Get(project), false).empty());

   ShuttleGui S(this, eIsCreatingFromPrefs);
   PopulateOrExchange(S);

   SetMinSize({GetBestSize().GetWidth(), -1});

   wxFileName filename;
   auto exportPath = ExportAudioDefaultPath.Read();
   if(exportPath.empty())
      exportPath = FileNames::FindDefaultPath(FileNames::Operation::Export);
   filename.SetPath(exportPath);

   //extension will be set in `ChangeFormat`
   filename.SetEmptyExt();
   if(defaultName.empty())
      //i18n-hint: default exported file name when exporting from unsaved project
      filename.SetName(_("untitled"));
   else
      filename.SetName(defaultName);

   auto sampleRate = ImportExport::Get(project).GetPreferredExportRate();
   if(sampleRate == ImportExport::InvalidRate)
   {
      auto& tracks = TrackList::Get(project);
      for(const auto track : tracks.Any<WaveTrack>())
         sampleRate = std::max(sampleRate, track->GetRate());
   }

   wxString format = defaultFormat;
   if(format.empty())
      ExportAudioDefaultFormat.Read(&format);

   mExportOptionsPanel->Init(filename, sampleRate, format);

   auto& tracks = TrackList::Get(mProject);
   const auto labelTracks = tracks.Any<LabelTrack>();
   const auto hasLabels = !labelTracks.empty() &&
      (*labelTracks.begin())->GetNumLabels() > 0;
   const auto hasMultipleWaveTracks = tracks.Any<WaveTrack>().size() > 1;
   const auto hasSelectedAudio = ExportUtils::HasSelectedAudio(mProject);

   mRangeSelection->Enable(hasSelectedAudio);
   mRangeSplit->Enable(hasLabels || hasMultipleWaveTracks);

   mSplitByLabels->Enable(hasLabels);
   mSplitByTracks->Enable(hasMultipleWaveTracks);

   if(mRangeSelection->IsEnabled() && mode == ExportMode::SelectedOnly)
   {