/// <summary>
/// Visit each of the atomic BIFF records contained in this {@link RecordAggregate} in the order
/// that they should be written to file. Implementors may or may not return the actual
/// Records being used to manage POI's internal implementation. Callers should not
/// assume either way, and therefore only attempt to modify those Records after cloning
/// </summary>
/// <param name="rv"></param>
public override void VisitContainedRecords(RecordVisitor rv)
{
int nItems = records.Count;
if (nItems < 1)
{
return;
}
ColumnInfoRecord cirPrev = null;
for (int i = 0; i < nItems; i++)
{
ColumnInfoRecord cir = (ColumnInfoRecord)records[i];
rv.VisitRecord(cir);
if (cirPrev != null && CIRComparator.CompareColInfos(cirPrev, cir) > 0)
{
// Excel probably wouldn't mind, but there is much logic in this class
// that assumes the column info records are kept in order
throw new InvalidOperationException("Column info records are out of order");
}
cirPrev = cir;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ColumnInfoRecordsAggregate"/> class.
/// </summary>
/// <param name="rs">The rs.</param>
public ColumnInfoRecordsAggregate(RecordStream rs) : this()
{
bool isInOrder = true;
ColumnInfoRecord cirPrev = null;
while (rs.PeekNextClass() == typeof(ColumnInfoRecord))
{
ColumnInfoRecord cir = (ColumnInfoRecord)rs.GetNext();
records.Add(cir);
if (cirPrev != null && CIRComparator.CompareColInfos(cirPrev, cir) > 0)
{
isInOrder = false;
}
cirPrev = cir;
}
if (records.Count < 1)
{
throw new InvalidOperationException("No column info records found");
}
if (!isInOrder)
{
records.Sort(CIRComparator.instance);
}
}
