+ _header->update();
+}
+
+void View::restack_all_row_items()
+{
+ // Make a set of owners
+ unordered_set< RowItemOwner* > owners;
+ for (const auto &r : *this)
+ owners.insert(r->owner());
+
+ // Make a list that is sorted from deepest first
+ vector< RowItemOwner* > sorted_owners(owners.begin(), owners.end());
+ sort(sorted_owners.begin(), sorted_owners.end(),
+ [](const RowItemOwner* a, const RowItemOwner *b) {
+ return a->depth() > b->depth(); });
+
+ // Restack the items recursively
+ for (auto &o : sorted_owners)
+ o->restack_items();
+
+ // Animate the items to their destination
+ for (const auto &r : *this)
+ r->animate_to_layout_v_offset();