private void DoNickCompletion()
{
int start = 0, end = 0;
if (txtInput.Text.Length > 0)
{
start = Math.Max(0, txtInput.CaretIndex - 1);
end = start < txtInput.Text.Length ? start + 1 : start;
while (start >= 0 && NicknameItem.IsNickChar(txtInput.Text[start]))
{
start--;
}
start++;
while (end < txtInput.Text.Length && NicknameItem.IsNickChar(txtInput.Text[end]))
{
end++;
}
}
else
{
start = end = 0;
}
if (end - start > 0)
{
string nickPart = txtInput.Text.Substring(start, end - start);
string nextNick = null;
if (_nickCandidates == null)
{
_nickCandidates = (from n in this.Nicknames
where n.Nickname.StartsWith(nickPart, StringComparison.InvariantCultureIgnoreCase)
orderby n.Nickname.ToLowerInvariant()
select n.Nickname).ToArray();
if (_nickCandidates.Length > 0)
{
nextNick = _nickCandidates[0];
}
}
for (int i = 0; i < _nickCandidates.Length; i++)
{
if (string.Compare(_nickCandidates[i], nickPart, StringComparison.InvariantCulture) == 0)
{
nextNick = i < _nickCandidates.Length - 1 ? _nickCandidates[i + 1] : _nickCandidates[0];
break;
}
}
var keepNickCandidates = _nickCandidates;
if (nextNick != null)
{
txtInput.Text = txtInput.Text.Substring(0, start) + nextNick + txtInput.Text.Substring(end);
txtInput.CaretIndex = start + nextNick.Length;
}
_nickCandidates = keepNickCandidates;
}
}
private void AddNick(ChannelLevel level, string nick)
{
this.RemoveNick(nick);
var cn = new NicknameItem(level, nick);
int count = this.Nicknames.Count;
if (count == 0 || cn.CompareTo(this.Nicknames[count - 1]) >= 0)
{
this.Nicknames.Add(cn);
}
else
{
int i;
for (i = 0; i < this.Nicknames.Count; i++)
{
if (cn.CompareTo(this.Nicknames[i]) < 0)
{
break;
}
}
this.Nicknames.Insert(i, cn);
}
}
