When inheriting from QGraphicsItem, you're supposed to provide an implementation to type() by setting an enum { Type = UserType + N } (N is different for each inheritance) so that a call to qgraphicsitem_cast works.
We haven't done that correctly, which means we are using dynamic_cast instead. I think it might be cleaner, more Qt-ish and (maybe?) for efficient to do so.
When inheriting from
QGraphicsItem, you're supposed to provide an implementation totype()by setting anenum { Type = UserType + N }(Nis different for each inheritance) so that a call toqgraphicsitem_castworks.We haven't done that correctly, which means we are using
dynamic_castinstead. I think it might be cleaner, more Qt-ish and (maybe?) for efficient to do so.