protected virtual void AddImpl(IWidget w, int index, TConstraint constraint)
{
if (w.Parent != null)
{
throw new ArgumentException();
}
var item = new WidgetAndConstraint <TConstraint>(w, constraint);
children.Insert(index, item);
w.AddNotify(this);
OnChildAdded(w, index, constraint);
RaiseChildAdded(index, w, constraint);
InvalidateLayout();
}
public bool Equals(WidgetAndConstraint <TConstraint> other)
{
return(Equals(Widget, other.Widget));
}
