public void Move(int oldindex, int newindex)
{
T item;
lock (locker) {
item = intern[oldindex];
status[oldindex] = false;
while (newindex >= intern.Count)
{
intern.Add(default(T));
}
if (status[newindex] == true)
{
var olditem = intern[newindex];
ItemRemoved?.Invoke(olditem);
ItemWithdrawn?.Invoke(olditem, newindex);
}
else
{
status[newindex] = true;
}
intern[newindex] = item;
}
ItemMoved?.Invoke(item, oldindex, newindex);
}
public void RemoveAt(int index)
{
T item;
lock (locker) {
item = intern[index];
intern.RemoveAt(index);
status.Withdraw(index);
}
ItemRemoved?.Invoke(item);
ItemWithdrawn?.Invoke(item, index);
for (int j = index; j < intern.Count; j++)
{
ItemMoved(intern[j], j, j - 1);
}
}
public void Clear()
{
T[] items;
lock (locker) {
items = intern.ToArray();
intern.Clear();
status.Clear();
}
for (int i = items.Length - 1; i >= 0; i--)
{
var item = items[i];
ItemRemoved?.Invoke(item);
ItemWithdrawn?.Invoke(item, i);
}
}