VP1TrackCaloPlugin_VP1AutoFactory Node1 VP1TrackCaloPlugin _VP1AutoFactory + channelWidgetsProvided() + getChannelWidget() Node2 QObject Node2->Node1 Node3 IVP1ChannelWidgetFactory + ~IVP1ChannelWidgetFactory() + channelWidgetsProvided() + getChannelWidget() Node3->Node1