VP1DockWidget Node1 VP1DockWidget # m_d + VP1DockWidget() + ~VP1DockWidget() + setSelected() + setUnselected() + isSelected() + channelWidget() + ensureCWHasNoParent() + ensureCWHasParent() + highlightStyle() # contextMenuEvent() # resizeEvent() - systemRefreshInfoChanged() - updateTitle() Node2 QDockWidget Node2->Node1