internal BaseRecord IncrementalSearch(BaseRecord tn, bool first, bool forward, bool wrapAround,
Predicate <BaseRecord> searchFunc)
{
using (var itr = new RecursiveRecordIterator(tn, forward))
{
BaseRecord startNode = null;
Debug.Assert(tn.Equals(itr.Current));
bool keep = first;
do
{
do
{
tn = itr.Current;
if (keep && searchFunc(tn))
{
return(tn);
}
keep = true;
if (startNode == null)
{
startNode = tn;
}
else if (startNode.Equals(tn))
{
return(null);
}
} while (itr.MoveNext());
if (!wrapAround)
{
break;
}
itr.Push(PluginList.All.Records[0] as BaseRecord);
itr.Reset();
wrapAround = false;// multipass protection
} while (itr.MoveNext());
}
return(null);
}
