void IOrderingInternal<TSourceItem>.RemoveThenOrdering(IThenOrderingInternal<TSourceItem> thenOrdering)
{
_thenOrderingsCount--;
_thenOrderings.Remove(thenOrdering);
}
private void processSourceItemChange(int sourceIndex, TSourceItem sourceItem)
{
void notifyThenOrderings(int newOrderedIndex)
{
int processedThenOrderingsCount = 0;
for (int thenOrderingIndex = 0; thenOrderingIndex < _thenOrderingsCount; thenOrderingIndex++)
{
IThenOrderingInternal<TSourceItem> thenOrdering = _thenOrderings[thenOrderingIndex];
thenOrdering.ProcessSourceItemChange(newOrderedIndex, sourceItem);
processedThenOrderingsCount++;
if (processedThenOrderingsCount == _thenOrderingsCount) break;
}
}
OrderingItemInfo<TOrderingValue> itemInfo = _itemInfos[sourceIndex];
OrderedItemInfo<TOrderingValue> orderedItemInfo = itemInfo.OrderedItemInfo;
int orderedIndex = orderedItemInfo.Index;
TOrderingValue orderingValue = getOrderingValue(itemInfo, sourceItem);
if (_comparer.Compare(_orderingValues[orderedIndex], orderingValue) != 0)
{
int newOrderedIndex = getOrderedIndex(orderingValue);
if (newOrderedIndex == Count)
newOrderedIndex = newOrderedIndex - 1;
else if (newOrderedIndex > orderedIndex) newOrderedIndex--;
_orderingValues.RemoveAt(orderedIndex);
_orderingValues.Insert(newOrderedIndex, orderingValue);
_orderedPositions.Move(orderedIndex, newOrderedIndex);
if (_thenOrderingsCount > 0)
{
RangePosition rangePosition = orderedItemInfo.RangePosition;
if (rangePosition.Length == 1)
_equalOrderingValueRangePositions.Remove(rangePosition.Index);
else
_equalOrderingValueRangePositions.ModifyLength(rangePosition.Index, -1);
adjustEqualOrderingValueRangePosition(
orderingValue,
orderedItemInfo,
newOrderedIndex,
orderedIndex < newOrderedIndex ? newOrderedIndex : newOrderedIndex - 1,
orderedIndex > newOrderedIndex ? newOrderedIndex : newOrderedIndex + 1);
}
if (orderedIndex != newOrderedIndex)
{
baseMoveItem(orderedIndex, newOrderedIndex);
}
else if (_thenOrderingsCount > 0)
{
notifyThenOrderings(newOrderedIndex);
}
}
else if (_thenOrderingsCount > 0)
{
notifyThenOrderings(orderedIndex);
}
}
