void ScrollBy(ref IntVector delta, Recycler recycler, State state)
{
_adapterChangeType = default(AdapterChangeType);
delta = Viewport.BoundTranslation(
delta: delta,
bound: _virtualLayout.GetBounds(_positionOrigin, state)
);
_locationOffset += delta;
_samples.Insert(0, delta);
_samples.RemoveAt(_samples.Count - 1);
OffsetChildren(delta);
OnLayoutChildren(recycler, state);
}