Method OnExceptionInMainLoop

src/AudacityApp.cpp:1198–1242

#endif //_MSC_VER

bool AudacityApp::OnExceptionInMainLoop()
{
   // This function is invoked from catch blocks in the wxWidgets framework,
   // and throw; without argument re-throws the exception being handled,
   // letting us dispatch according to its type.

   try { throw; }
   catch ( AudacityException &e ) {
      (void)e;// Compiler food
      // Here is the catch-all for our own exceptions

      // Use CallAfter to delay this to the next pass of the event loop,
      // rather than risk doing it inside stack unwinding.
      auto pProject = ::GetActiveProject().lock();
      auto pException = std::current_exception();
      CallAfter( [pException, pProject] {

         // Restore the state of the project to what it was before the
         // failed operation
         if (pProject) {
            ProjectHistory::Get( *pProject ).RollbackState();

            // Forget pending changes in the TrackList
            PendingTracks::Get(*pProject).ClearPendingTracks();
            Viewport::Get(*pProject).Redraw();
         }

         // Give the user an alert
         try { std::rethrow_exception( pException ); }
         catch( AudacityException &e )
            { e.DelayedHandlerAction(); }

      } );

      // Don't quit the program
      return true;
   }
   catch ( ... ) {
      // There was some other type of exception we don't know.
      // Let the inherited function do throw; again and whatever else it does.
      return wxApp::OnExceptionInMainLoop();
   }
   // Shouldn't ever reach this line
   return false;
}
#ifdef _MSC_VER
#pragma warning( pop )
#endif //_MSC_VER