Method getCurrentLayer

src/openms_gui/source/VISUAL/APPLICATIONS/TOPPViewBase.cpp:1838–1846

  }

  const LayerDataBase* TOPPViewBase::getCurrentLayer() const
  {
    PlotCanvas* canvas = getActiveCanvas();
    if (canvas == nullptr)
    {
      return nullptr;
    }
    return &(canvas->getCurrentLayer());
  }

  LayerDataBase* TOPPViewBase::getCurrentLayer()
  {