[ NoWrapper ]
public virtual void simple_create_path (Context cr)
simple subclasses that draw basic shapes and paths only need to override this one method.
It creates the path for the item. All updating, painting and hit-testing is provided automatically by the
CanvasItemSimple class. (This method is used by the builtin
CanvasEllipse, CanvasRect and
CanvasPath items.) More complicated subclasses must override simple_update,
simple_paint and simple_is_item_at instead.