private bool ShouldAddLeafNode(ICmPossibility keyTerm, IFdoOwningSequence <ICmPossibility> subKeyTerms)
{
// if we have a book filter and the keyterm doesn't have subpossibilities (ie. it's a leaf node)
// make sure this key term has an occurrence in the books specified by the book filter.
if (subKeyTerms.Count == 0)
{
if (HasBookFilter)
{
IChkTerm chkTerm = (IChkTerm)keyTerm;
foreach (IChkRef chkRef in chkTerm.OccurrencesOS)
{
int bookIdOfOccurrence = ScrReference.GetBookFromBcv(chkRef.Ref);
if (FilteredBookIds.Contains(bookIdOfOccurrence))
{
// the reference is in one of our filtered books
// so add its key term to our tree.
return(true);
}
}
}
else
{
// no book filter to apply, so add all the key terms.
return(true);
}
}
else
{
// return false. not a leaf-node.
}
return(false);
}