Method OnImportProgress

src/ProjectFileManager.cpp:1307–1321

   }

   void OnImportProgress(double progress) override
   {
      constexpr double ProgressSteps { 1000.0 };
      if(!mProgressDialog)
      {
         wxFileName ff( mImportFileHandle->GetFilename() );
         auto title = XO("Importing %s").Format(  mImportFileHandle->GetFileDescription() );
         mProgressDialog = BasicUI::MakeProgress(title, Verbatim(ff.GetFullName()));
      }
      auto result = mProgressDialog->Poll(progress * ProgressSteps, ProgressSteps);
      if(result == BasicUI::ProgressResult::Cancelled)
         mImportFileHandle->Cancel();
      else if(result == BasicUI::ProgressResult::Stopped)
         mImportFileHandle->Stop();
   }

   void OnImportResult(ImportResult result) override
   {