Method onMenuZoomTo100

YUViewLib/src/ui/Mainwindow.h:115–120

      v->zoomTo50(checked);
  }
  void onMenuZoomTo100(bool checked)
  {
    const auto v = this->getCurrentActiveView();
    if (v)
      v->zoomTo100(checked);
  }
  void onMenuZoomTo200(bool checked)
  {
    const auto v = this->getCurrentActiveView();