DetermineBoundingBox
BRect DetermineBoundingBox() const
return data->DetermineBoundingBox();
fBounds = static_cast<VectorMaskType*>(this)->DetermineBoundingBox();
fShapeBounds = fShape->DetermineBoundingBox();
BRect DetermineBoundingBox() const;
BRect DetermineBoundingBox() const;