void
SetSizeOf(IWidget& wgt, const Size& s)
{
wgt.GetRenderer().SetSize(s);
wgt.GetView().SetSize(s);
CallEvent<Resize>(wgt, UIEventArgs(wgt));
}
void
PaintChild(IWidget& wgt, PaintEventArgs&& e)
{
auto& sender(e.GetSender());
if(Clip(e.ClipArea, Rect(e.Location += GetLocationOf(sender),
GetSizeOf(sender))))
wgt.GetRenderer().Paint(sender, std::move(e));
}
void
InvalidateChildren(IWidget& wgt, const Rect& bounds)
{
Rect r(wgt.GetRenderer().CommitInvalidation(bounds));
for(auto pr(wgt.GetChildren()); pr.first != pr.second; ++pr.first)
{
auto& child(*pr.first);
InvalidateChildren(child, Rect(r - GetLocationOf(child)));
}
}