private void Query(object searchBounds,
AbstractNode node, ArrayList matches)
{
for (IEnumerator i = node.ChildBoundables.GetEnumerator(); i.MoveNext();)
{
IBoundable childBoundable = (IBoundable)i.Current;
if (!GetIntersectsOp().Intersects(childBoundable.Bounds, searchBounds))
{
continue;
}
AbstractNode abstractNode = childBoundable as AbstractNode;
if (abstractNode != null)
{
Query(searchBounds, abstractNode, matches);
}
else
{
ItemBoundable objItem = childBoundable as ItemBoundable;
if (objItem != null)
{
matches.Add(objItem.Item);
}
else
{
Debug.Assert(false, "Should never reach here");
}
}
}
}
private bool RemoveItem(AbstractNode node, object item)
{
IBoundable childToRemove = null;
for (IEnumerator i = node.ChildBoundables.GetEnumerator(); i.MoveNext();)
{
ItemBoundable childBoundable = i.Current as ItemBoundable;
if (childBoundable != null)
{
if (childBoundable.Item == item)
{
childToRemove = childBoundable;
}
}
}
if (childToRemove != null)
{
node.ChildBoundables.Remove(childToRemove);
return(true);
}
return(false);
}
