/// <summary>
/// The constructor for the record.
/// </summary>
/// <param name="biff">The GenericBiff record that should contain the correct type and data for the FORMULA record.</param>
/// <param name="recordsStream">The stream into the records to which the FORMULA record belongs to. The record stream must be positioned just after the FORMULA record.</param>
/// <exception cref="InvalidRecordIdException">
/// An InvalidRecordIdException is thrown if biff contains an invalid type or invalid data.
/// </exception>
public FormulaRecord(GenericBiff biff, Stream recordsStream)
{
if(biff.Id == (ushort)RecordType.Formula)
{
Stream stream = biff.GetDataStream();
BinaryReader reader = new BinaryReader(stream);
ReadRowColXf(reader);
FormulaValue val = new FormulaValue(reader.ReadDouble());
_options = reader.ReadUInt16();
_reserved = reader.ReadUInt32();
_formulaLen = reader.ReadUInt16();
_formulaData = reader.ReadBytes((int)(stream.Length - stream.Position));
if(val.StringFollows)
{
GenericBiff r = new GenericBiff(recordsStream);
while(r.Id != (ushort)RecordType.String)
{
r = new GenericBiff(recordsStream);
}
StringValueRecord stringValue = new StringValueRecord(r);
_value = stringValue.Value;
}
else
_value = val.Value;
}
else
throw new InvalidRecordIdException(biff.Id, RecordType.Formula);
}
/// <summary>
/// The constructor for the record.
/// </summary>
/// <param name="biff">The GenericBiff record that should contain the correct type and data for the FORMULA record.</param>
/// <param name="recordsStream">The stream into the records to which the FORMULA record belongs to. The record stream must be positioned just after the FORMULA record.</param>
/// <exception cref="InvalidRecordIdException">
/// An InvalidRecordIdException is thrown if biff contains an invalid type or invalid data.
/// </exception>
public FormulaRecord(GenericBiff biff, Stream recordsStream)
{
if (biff.Id == (ushort)RecordType.Formula)
{
Stream stream = biff.GetDataStream();
BinaryReader reader = new BinaryReader(stream);
ReadRowColXf(reader);
FormulaValue val = new FormulaValue(reader.ReadDouble());
_options = reader.ReadUInt16();
_reserved = reader.ReadUInt32();
_formulaLen = reader.ReadUInt16();
_formulaData = reader.ReadBytes((int)(stream.Length - stream.Position));
if (val.StringFollows)
{
GenericBiff r = new GenericBiff(recordsStream);
while (r.Id != (ushort)RecordType.String)
{
r = new GenericBiff(recordsStream);
}
StringValueRecord stringValue = new StringValueRecord(r);
_value = stringValue.Value;
}
else
{
_value = val.Value;
}
}
else
{
throw new InvalidRecordIdException(biff.Id, RecordType.Formula);
}
}
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;
}
