public static IEnumerable <Items> Do(
IEnumerable <T> items, Func <T, TimeRange> getTimeRange,
DateTime dtMin, DateTime dtMax)
{
var lst = new Lst();
var lstMaxEndTime = dtMin;
foreach (var item in items)
{
var tr = getTimeRange(item);
if (tr.endTime == DateTime.MinValue)
{
continue;
}
if (lstMaxEndTime <= tr.time && lst.Count > 0)
{
if (lst.Count == 1)
{
yield return(lst[0].ToItems(dtMin, tr.time));
}
else
{
foreach (var tuple in EnumerateLst(lst, dtMin, tr.time))
{
yield return(tuple);
}
}
lst.Clear();
dtMin = tr.time;
}
if (lstMaxEndTime < tr.endTime)
{
lstMaxEndTime = tr.endTime;
}
lst.Add(new Item()
{
timeRng = tr, item = item
});
}
if (lst.Count > 0)
{
if (lst.Count == 1)
{
yield return(lst[0].ToItems(dtMin, dtMax));
}
else
{
foreach (var tuple in EnumerateLst(lst, dtMin, dtMax))
{
yield return(tuple);
}
}
}
}
public void Clear()
{
_nodes = _nodes.Clear();
_dirty = false;
}