private bool readWorkSheetGlobals(XlsWorksheet sheet, out XlsBiffIndex idx, out XlsBiffRow row)
{
idx = null;
row = null;
m_stream.Seek((int)sheet.DataOffset, SeekOrigin.Begin);
//
// Read BOF
//
XlsBiffBOF bof = m_stream.Read() as XlsBiffBOF;
if (bof == null || bof.Type != BIFFTYPE.Worksheet)
{
return(false);
}
//DumpBiffRecords();
//
// Read Index
//
XlsBiffRecord rec = m_stream.Read();
if (rec == null)
{
return(false);
}
if (rec is XlsBiffIndex)
{
idx = rec as XlsBiffIndex;
}
else if (rec is XlsBiffUncalced)
{
// Sometimes this come before the index...
idx = m_stream.Read() as XlsBiffIndex;
}
//if (null == idx)
//{
// // There is a record before the index! Chech his type and see the MS Biff Documentation
// return false;
//}
if (idx != null)
{
idx.IsV8 = isV8();
}
//
// Read Demension
//
XlsBiffRecord trec;
XlsBiffDimensions dims = null;
do
{
trec = m_stream.Read();
if (trec.ID == BIFFRECORDTYPE.DIMENSIONS)
{
dims = (XlsBiffDimensions)trec;
break;
}
} while (trec != null && trec.ID != BIFFRECORDTYPE.ROW);
//
// Read Row
//
//if we are already on row record then set that as the row, otherwise step forward till we get to a row record
if (trec.ID == BIFFRECORDTYPE.ROW)
{
row = (XlsBiffRow)trec;
}
XlsBiffRow rowRecord = null;
while (rowRecord == null)
{
if (m_stream.Position >= m_stream.Size)
{
break;
}
var thisRec = m_stream.Read();
if (thisRec is XlsBiffEOF)
{
break;
}
rowRecord = thisRec as XlsBiffRow;
}
if (rowRecord != null)
{
////Console.WriteLine("Got row {0}, rec: id={1},rowindex={2}, rowColumnStart={3}, rowColumnEnd={4}", rowRecord.Offset, rowRecord.ID, rowRecord.RowIndex, rowRecord.FirstDefinedColumn, rowRecord.LastDefinedColumn);
}
row = rowRecord;
if (dims != null)
{
dims.IsV8 = isV8();
////LogManager.Log(this).Debug("dims IsV8={0}", dims.IsV8);
m_maxCol = dims.LastColumn - 1;
//handle case where sheet reports last column is 1 but there are actually more
if (m_maxCol <= 0 && rowRecord != null)
{
m_maxCol = rowRecord.LastDefinedColumn;
}
m_maxRow = (int)dims.LastRow;
sheet.Dimensions = dims;
}
else
{
m_maxCol = 256;
m_maxRow = (int)idx.LastExistingRow;
}
if (idx != null && idx.LastExistingRow <= idx.FirstExistingRow)
{
return(false);
}
else if (row == null)
{
return(false);
}
m_depth = 0;
//
// Read Hyper Link
//
bool hasFound = false;
while (true)
{
if (m_stream.Position >= m_stream.Size)
{
break;
}
var thisRecord = m_stream.Read();
if (thisRecord is XlsBiffEOF)
{
break;
}
XlsBiffHyperLink hyperLink = thisRecord as XlsBiffHyperLink;
if (hyperLink != null)
{
hasFound = true;
////Console.WriteLine("Read HyperLink");
//Console.WriteLine("Url:{0},{1}",hyperLink.Url,hyperLink.CellRangeAddress.ToString());
m_globals.AddHyperLink(hyperLink);
}
if (hasFound == true && hyperLink == null)
{
break;
}
}
return(true);
}
private void pushCellValue(XlsBiffBlankCell cell)
{
double _dValue;
bool hasValue = true;
switch (cell.ID)
{
case BIFFRECORDTYPE.BOOLERR:
if (cell.ReadByte(7) == 0)
{
m_cellsValues[cell.ColumnIndex] = new XlsCell(cell.ReadByte(6) != 0);
}
else
{
hasValue = false;
}
break;
case BIFFRECORDTYPE.BOOLERR_OLD:
if (cell.ReadByte(8) == 0)
{
m_cellsValues[cell.ColumnIndex] = new XlsCell(cell.ReadByte(7) != 0);
}
else
{
hasValue = false;
}
break;
case BIFFRECORDTYPE.INTEGER:
case BIFFRECORDTYPE.INTEGER_OLD:
m_cellsValues[cell.ColumnIndex] = new XlsCell(((XlsBiffIntegerCell)cell).Value);
break;
case BIFFRECORDTYPE.NUMBER:
case BIFFRECORDTYPE.NUMBER_OLD:
_dValue = ((XlsBiffNumberCell)cell).Value;
m_cellsValues[cell.ColumnIndex] =
new XlsCell(_dValue);
break;
case BIFFRECORDTYPE.LABEL:
case BIFFRECORDTYPE.LABEL_OLD:
case BIFFRECORDTYPE.RSTRING:
m_cellsValues[cell.ColumnIndex] = new XlsCell(((XlsBiffLabelCell)cell).Value);
break;
case BIFFRECORDTYPE.LABELSST:
string tmp = m_globals.SST.GetString(((XlsBiffLabelSSTCell)cell).SSTIndex);
m_cellsValues[cell.ColumnIndex] = new XlsCell(tmp);
break;
case BIFFRECORDTYPE.RK:
_dValue = ((XlsBiffRKCell)cell).Value;
m_cellsValues[cell.ColumnIndex] = new XlsCell(_dValue);
break;
case BIFFRECORDTYPE.MULRK:
var _rkCell = (XlsBiffMulRKCell)cell;
bool hasSet = false;
for (ushort j = cell.ColumnIndex; j <= _rkCell.LastColumnIndex; j++)
{
_dValue = _rkCell.GetValue(j);
m_cellsValues[j] = new XlsCell(_dValue);
hasSet = true;
}
hasValue = hasSet;
break;
case BIFFRECORDTYPE.BLANK:
case BIFFRECORDTYPE.BLANK_OLD:
case BIFFRECORDTYPE.MULBLANK:
// Skip blank cells
hasValue = false;
break;
case BIFFRECORDTYPE.FORMULA:
case BIFFRECORDTYPE.FORMULA_OLD:
object _oValue = ((XlsBiffFormulaCell)cell).Value;
if (!(_oValue is FORMULAERROR))
{
m_cellsValues[cell.ColumnIndex] =
new XlsCell(_oValue);
}
else
{
hasValue = false;
}
break;
default:
hasValue = false;
break;
}
if (hasValue)
{
XlsBiffHyperLink hyperLink = m_globals.GetHyperLink(cell.RowIndex, cell.ColumnIndex);
if (hyperLink != null)
{
m_cellsValues[cell.ColumnIndex].SetHyperLink(hyperLink.Url);
}
}
}