Method FetchSettings

libraries/lib-vst3/VST3Wrapper.cpp:593–630

}

void VST3Wrapper::FetchSettings(EffectSettings& settings)
{
   //TODO: perform version check
   {
      auto componentHandler = static_cast<ComponentHandler*>(mComponentHandler.get());
      componentHandler->ResetCache();
      componentHandler->BeginStateChange(settings);
      auto cleanup = finally([&] { componentHandler->EndStateChange(); });

      //Restore state
      const auto* vst3settings = &GetSettings(settings);
      if(!vst3settings->processorState.has_value())
         vst3settings = &GetSettings(GetCache(mEffectClassInfo.ID())->defaultSettings);

      if(vst3settings->processorState.has_value())
      {
         auto processorState = PresetsBufferStream::fromString(*vst3settings->processorState);
         processorState->seek(0, Steinberg::IBStream::kIBSeekSet);
         if(mEffectComponent->setState(processorState) == Steinberg::kResultOk)
         {
            processorState->seek(0, Steinberg::IBStream::kIBSeekSet);
            if(mEditController->setComponentState(processorState) == Steinberg::kResultOk)
            {
               if(vst3settings->controllerState.has_value())
               {
                  auto controllerState = PresetsBufferStream::fromString(*vst3settings->controllerState);
                  controllerState->seek(0, Steinberg::IBStream::kIBSeekSet);
                  mEditController->setState(controllerState);
               }
            }
         }
      }
   }
   //restore parameters if present
   auto& vst3setting = GetSettings(settings);
   for(auto& p : vst3setting.parameterChanges)
      mEditController->setParamNormalized(p.first, p.second);
}

void VST3Wrapper::StoreSettings(EffectSettings& settings) const
{