/// <summary>
/// The constructor for the record.
/// </summary>
/// <param name="biff">The GenericBiff record that should contain the correct type and data for the SST record.</param>
/// <param name="recordStream">The stream into the records to which the SST record belongs to. The record stream must be positioned just after the SST record.</param>
/// <exception cref="InvalidRecordIdException">
/// An InvalidRecordIdException is thrown if biff contains an invalid type or invalid data.
/// </exception>
public SstRecord(GenericBiff biff, Stream recordStream)
{
if (biff.Id == (ushort)RecordType.Sst)
{
Stream stream = biff.GetDataStream();
BinaryReader reader = new BinaryReader(stream);
/* uint totalStrings = */ reader.ReadUInt32();
uint totalUniqueStrings = reader.ReadUInt32();
_strings = new string[totalUniqueStrings];
StringBuilder sb = new StringBuilder();
for (int i = 0; i < totalUniqueStrings; ++i)
{
if (stream.Position >= stream.Length)
{
ContinueRecord cont = ReadContinue(recordStream);
stream = cont.GetDataStream();
reader = new BinaryReader(stream);
}
ushort len = reader.ReadUInt16();
byte options = reader.ReadByte();
bool compressed = (options & 0x01) == 0;
bool farEast = (options & 0x04) != 0;
bool richText = (options & 0x08) != 0;
ushort rtSize = 0;
uint farEastSize = 0;
if (richText)
{
rtSize = reader.ReadUInt16();
}
if (farEast)
{
farEastSize = reader.ReadUInt32();
}
sb.Length = 0;
sb.EnsureCapacity(len);
for (ushort n = 0; n < len; ++n)
{
if (stream.Position >= stream.Length)
{
ContinueRecord cont = ReadContinue(recordStream);
stream = cont.GetDataStream();
reader = new BinaryReader(stream);
compressed = (reader.ReadByte() & 0x01) == 0;
}
if (compressed)
{
sb.Append(Convert.ToChar(reader.ReadByte()));
}
else
{
sb.Append(Convert.ToChar(reader.ReadUInt16()));
}
}
Debug.Assert(sb.Length == len);
_strings[i] = sb.ToString();
long skip = (rtSize * 4) + farEastSize;
while (skip > 0)
{
if (stream.Position >= stream.Length)
{
ContinueRecord cont = ReadContinue(recordStream);
stream = cont.GetDataStream();
reader = new BinaryReader(stream);
}
long actualSkip = Math.Min(stream.Length - stream.Position, skip);
stream.Seek(actualSkip, SeekOrigin.Current);
skip -= actualSkip;
}
}
}
else
{
throw new InvalidRecordIdException(biff.Id, RecordType.Sst);
}
}
private Biff GetCorrectRecord(GenericBiff record, Stream stream, SstRecord sst)
{
Biff ret = record;
switch (record.Id)
{
case (ushort)RecordType.Bof:
BofRecord bof = new BofRecord(record);
if (bof.Version < 0x0600)
throw new Exception("Versions below Excel 97/2000 are currently not supported.");
ret = bof;
break;
case (ushort)RecordType.Boundsheet:
ret = new BoundSheetRecord(record);
break;
case (ushort)RecordType.Index:
ret = new IndexRecord(record);
break;
case (ushort)RecordType.DbCell:
ret = new DbCellRecord(record);
break;
case (ushort)RecordType.Row:
ret = new RowRecord(record);
break;
case (ushort)RecordType.Continue:
ret = new ContinueRecord(record);
break;
case (ushort)RecordType.Blank:
ret = new BlankRecord(record);
break;
case (ushort)RecordType.BoolErr:
ret = new BoolErrRecord(record);
break;
case (ushort)RecordType.Formula:
ret = new FormulaRecord(record, stream);
break;
case (ushort)RecordType.Label:
ret = new LabelRecord(record);
break;
case (ushort)RecordType.LabelSst:
ret = new LabelSstRecord(record, sst);
break;
case (ushort)RecordType.MulBlank:
ret = new MulBlankRecord(record);
break;
case (ushort)RecordType.MulRk:
ret = new MulRkRecord(record);
break;
case (ushort)RecordType.String:
ret = new StringValueRecord(record);
break;
case (ushort)RecordType.Xf:
ret = new XfRecord(record);
break;
case (ushort)RecordType.Rk:
ret = new RkRecord(record);
break;
case (ushort)RecordType.Number:
ret = new NumberRecord(record);
break;
case (ushort)RecordType.Array:
ret = new ArrayRecord(record);
break;
case (ushort)RecordType.ShrFmla:
ret = new SharedFormulaRecord(record);
break;
case (ushort)RecordType.Table:
ret = new TableRecord(record);
break;
case (ushort)RecordType.Sst:
ret = new SstRecord(record, stream);
break;
case (ushort)RecordType.Eof:
ret = new EofRecord(record);
break;
case (ushort)RecordType.Font:
ret = new FontRecord(record);
break;
case (ushort)RecordType.Format:
ret = new Net.SourceForge.Koogra.Excel.Records.FormatRecord(record);
break;
case (ushort)RecordType.Palette:
ret = new PaletteRecord(record);
break;
case (ushort)RecordType.Hyperlink:
ret = new HyperLinkRecord(record);
break;
}
return ret;
}
