Widget::setContentSize() -> _contentSize, but (Widget::getContentSize() == **_size**) != _contentSize

When we write a function as:

  












  
void someFunc(Node* parent, Node* node) {
    // Now we have to check whether it is a Widget or a Node

    Widget* wParent = dynamic_cast<Widget*>(parent);
    Widget* wNode = dynamic_cast<Widget*>(node);

    Size vSize = (wParent ? wParent->getSize() : parent->getContentSize());
    Size cSize = (wNode ? wNode->getSize() : node->getContentSize());

    // ...
}