void
SetSizeOf(IWidget& wgt, const Size& s)
{
wgt.GetRenderer().SetSize(s);
wgt.GetView().SetSize(s);
CallEvent<Resize>(wgt, UIEventArgs(wgt));
}
void
SetLocationOf(IWidget& wgt, const Point& pt)
{
wgt.GetView().SetLocation(pt);
CallEvent<Move>(wgt, UIEventArgs(wgt));
}