_context _id _parent _refcount _shape _tag addRef clone context create getID getParent getTag getType MgShapeT MgShapeT registerCreator release setContext setParent setTag shape shapec ThisClass Type ~MgShapeT

getParent() template<class ShapeT, class ContextT = GiContext> MgShapes* MgShapeT< ShapeT, ContextT >::getParent ( ) const virtual 得到上一级图形列表 实现了 MgShape.