-set< TraceTreeItemOwner* > TraceTreeItemOwner::list_row_item_owners()
-{
- set< TraceTreeItemOwner* > owners;
- for (const auto &r : *this)
- owners.insert(r->owner());
- return owners;
-}
-
-template<class T>
-set< shared_ptr<T> > TraceTreeItemOwner::list_by_type()
-{
- set< shared_ptr<T> > items;
- for (const auto &r : *this) {
- shared_ptr<T> p = dynamic_pointer_cast<T>(r);
- if (p)
- items.insert(p);
+ const int child_offset = t->layout_v_offset();
+ const pair<int, int> child_extents = t->v_extents();
+ extents.first = min(child_extents.first + child_offset,
+ extents.first);
+ extents.second = max(child_extents.second + child_offset,
+ extents.second);