/// <summary>
/// Updates indices of items which is greater than or equal to the specified index
/// with the specified value.
/// </summary>
/// <param name="index">Index from which update has to be done.</param>
/// <param name="value">Value with which positions have to be updated.</param>
private void UpdatePositions(int index, int value)
{
List <int> itemsPositionToUpdate = _updatedItems.Keys.Where(I => I >= index).ToList();
itemsPositionToUpdate.Sort();
if (value > 0)
{
for (int i = itemsPositionToUpdate.Count - 1; i >= 0; i--)
{
int key = itemsPositionToUpdate[i];
UpdatedSequenceItem item = _updatedItems[key];
_updatedItems.Remove(key);
_updatedItems.Add(key + value, item);
}
}
else if (value < 0)
{
for (int i = 0; i < itemsPositionToUpdate.Count; i++)
{
int key = itemsPositionToUpdate[i];
UpdatedSequenceItem item = _updatedItems[key];
_updatedItems.Remove(key);
_updatedItems.Add(key + value, item);
}
}
}
/// <summary>
/// Constructor for clone method.
/// </summary>
/// <param name="otherDerivedSequence">otherDerivedSequence to clone.</param>
private DerivedSequence(DerivedSequence otherDerivedSequence)
{
_source = otherDerivedSequence._source.Clone();
_updatedItems = new SortedDictionary <int, UpdatedSequenceItem>();
foreach (int key in otherDerivedSequence._updatedItems.Keys)
{
UpdatedSequenceItem item = new UpdatedSequenceItem(
otherDerivedSequence._updatedItems[key].SequenceItem,
otherDerivedSequence._updatedItems[key].Type);
if (item.SequenceItem != Alphabet.LookupBySymbol(item.SequenceItem.Symbol))
{
item.SequenceItem = item.SequenceItem.Clone();
}
_updatedItems.Add(key, item);
}
}