Method UpdateLabelExportSettings

src/export/ExportAudioDialog.cpp:685–786

}

void ExportAudioDialog::UpdateLabelExportSettings(const ExportPlugin& plugin, int formatIndex, bool byName, bool addNumber, const wxString& prefix)
{
   const auto& tracks = TrackList::Get(mProject);
   const auto& labels = (*tracks.Any<const LabelTrack>().begin());
   const auto numLabels = labels->GetNumLabels();

   auto numFiles = numLabels;
   auto fileIndex = 0;        // counter for files done
   std::vector<ExportSetting> exportSettings; // dynamic array for settings.
   exportSettings.reserve(numFiles); // Allocate some guessed space to use.

   // Account for exporting before first label
   if( mIncludeAudioBeforeFirstLabel->GetValue() ) {
      fileIndex = -1;
      numFiles++;
   }

   const auto formatInfo = plugin.GetFormatInfo(formatIndex);

   FilePaths otherNames;  // keep track of file names we will use, so we
   // don't duplicate them
   ExportSetting setting;   // the current batch of settings
   setting.filename.SetPath(mExportOptionsPanel->GetPath());
   setting.channels = mExportOptionsPanel->GetChannels();
   setting.filename.SetFullName(mExportOptionsPanel->GetFullName());

   wxString name;    // used to hold file name whilst we mess with it
   wxString title;   // un-messed-with title of file for tagging with

   const LabelStruct *info = NULL;
   /* Examine all labels a first time, sort out all data but don't do any
    * exporting yet (so this run is quick but interactive) */
   while( fileIndex < numLabels ) {

      // Get file name and starting time
      if( fileIndex < 0 ) {
         // create wxFileName for output file
         name = setting.filename.GetName();
         setting.t0 = 0.0;
      } else {
         info = labels->GetLabel(fileIndex);
         name = (info->title);
         setting.t0 = info->selectedRegion.t0();
      }

      // Figure out the ending time
      if( info && !info->selectedRegion.isPoint() ) {
         setting.t1 = info->selectedRegion.t1();
      } else if( fileIndex < numLabels - 1 ) {
         // Use start of next label as end
         const LabelStruct *info1 = labels->GetLabel(fileIndex+1);
         setting.t1 = info1->selectedRegion.t0();
      } else {
         setting.t1 = tracks.GetEndTime();
      }

      if( name.empty() )
         name = _("untitled");