A board widget can have several children but has no layout of any kind.
Parameters: LandWidget * base, LandWidget * parent, int x, int y, int w, int h
Parameters: LandWidget * parent, int x, int y, int w, int h
Returns: LandWidget*
Parameters: LandWidget * base, LandWidget * add
Parameters: LandWidget * super, float dx, float dy
Parameters: LandWidget * widget
no parameters