private static List <BOUNDSHEET> DecodeRecords(List <Record> records, out SharedResource sharedResource)
{
sharedResource = new SharedResource();
List <BOUNDSHEET> boundSheets = new List <BOUNDSHEET>();
foreach (Record record in records)
{
record.Decode();
switch (record.Type)
{
case RecordType.BOUNDSHEET:
boundSheets.Add(record as BOUNDSHEET);
break;
case RecordType.XF:
sharedResource.ExtendedFormats.Add(record as XF);
break;
case RecordType.FORMAT:
sharedResource.CellFormats.Add(record as FORMAT);
break;
case RecordType.SST:
sharedResource.SharedStringTable = record as SST;
break;
case RecordType.DATEMODE:
DATEMODE dateMode = record as DATEMODE;
switch (dateMode.Mode)
{
case 0:
sharedResource.BaseDate = DateTime.Parse("1899-12-31");
break;
case 1:
sharedResource.BaseDate = DateTime.Parse("1904-01-01");
break;
}
break;
case RecordType.PALETTE:
PALETTE palette = record as PALETTE;
int colorIndex = 8;
foreach (int color in palette.Colors)
{
sharedResource.ColorPalette[colorIndex] = Color.FromArgb(color);
colorIndex++;
}
break;
case RecordType.FONT:
FONT f = record as FONT;
sharedResource.Fonts.Add(f);
break;
}
}
return(boundSheets);
}
public static Worksheet Decode(Workbook book, Stream stream, SharedResource sharedResource)
{
Worksheet sheet = new Worksheet();
sheet.Book = book;
List <Record> records = ReadRecords(stream, out sheet.Drawing);
sheet.Cells = PopulateCells(records, sharedResource);
sheet.Book.Records.AddRange(records);
return(sheet);
}
/*
* Page 171 of the OpenOffice documentation of the Excel File Format
*
* The font with index 4 is omitted in all BIFF versions. This means the first four fonts have zero-based indexes,
* and the fifth font and all following fonts are referenced with one-based indexes.
*/
//public FONT getFontRecord(int index)
private static FONT getFontRecord(SharedResource sharedResource, UInt16 index)
{
if (index >= 0 && index <= 3)
{
return(sharedResource.Fonts[index]);
}
else if (index >= 5)
{
return(sharedResource.Fonts[index - 1]);
}
else // index == 4 -> error
{
return(null);
}
}
private static CellCollection PopulateCells(List <Record> records, SharedResource sharedResource)
{
CellCollection cells = new CellCollection();
cells.SharedResource = sharedResource;
foreach (Record record in records)
{
record.Decode();
switch (record.Type)
{
//case RecordType.DIMENSIONS:
// DIMENSIONS dimensions = record as DIMENSIONS;
// cells.FirstRowIndex = dimensions.FirstRow;
// cells.FirstColIndex = dimensions.FirstColumn;
// cells.LastRowIndex = dimensions.LastRow-1;
// cells.LastColIndex = dimensions.LastColumn-1;
// break;
case RecordType.BOOLERR:
BOOLERR boolerr = record as BOOLERR;
cells.CreateCell(boolerr.RowIndex, boolerr.ColIndex, boolerr.GetValue(), boolerr.XFIndex);
break;
case RecordType.LABEL:
LABEL label = record as LABEL;
cells.CreateCell(label.RowIndex, label.ColIndex, label.Value, label.XFIndex);
break;
case RecordType.LABELSST:
LABELSST labelsst = record as LABELSST;
Cell cell = cells.CreateCell(labelsst.RowIndex, labelsst.ColIndex, sharedResource.GetStringFromSST(labelsst.SSTIndex), labelsst.XFIndex);
cell.Style.RichTextFormat = sharedResource.SharedStringTable.RichTextFormatting[labelsst.SSTIndex];
break;
case RecordType.NUMBER:
NUMBER number = record as NUMBER;
cells.CreateCell(number.RowIndex, number.ColIndex, number.Value, number.XFIndex);
break;
case RecordType.RK:
RK rk = record as RK;
cells.CreateCell(rk.RowIndex, rk.ColIndex, Record.DecodeRK(rk.Value), rk.XFIndex);
break;
case RecordType.MULRK:
MULRK mulrk = record as MULRK;
int row = mulrk.RowIndex;
for (int col = mulrk.FirstColIndex; col <= mulrk.LastColIndex; col++)
{
int index = col - mulrk.FirstColIndex;
object value = Record.DecodeRK(mulrk.RKList[index]);
int XFindex = mulrk.XFList[index];
cells.CreateCell(row, col, value, XFindex);
}
break;
case RecordType.FORMULA:
FORMULA formula = record as FORMULA;
cells.CreateCell(formula.RowIndex, formula.ColIndex, formula.DecodeResult(), formula.XFIndex);
break;
}
}
return(cells);
}
private static List <Record> EncodeWorkbook(Workbook workbook)
{
SharedResource sharedResource = new SharedResource(true);
List <Record> book_records = new List <Record>();
BOF bof = new BOF();
bof.BIFFversion = 0x0600; //0600H = BIFF8
bof.StreamType = StreamType.WorkbookGlobals;
bof.BuildID = 3515;
bof.BuildYear = 1996;
bof.RequiredExcelVersion = 6;
book_records.Add(bof);
CODEPAGE codepage = new CODEPAGE();
codepage.CodePageIdentifier = (ushort)Encoding.Unicode.CodePage;
book_records.Add(codepage);
WINDOW1 window = new WINDOW1();
window.WindowWidth = 16384;
window.WindowHeight = 8192;
window.SelecteWorksheets = 1;
window.TabBarWidth = 600;
window.OptionFlags = 56;
book_records.Add(window);
DATEMODE dateMode = new DATEMODE();
dateMode.Mode = 1;
sharedResource.BaseDate = DateTime.Parse("1904-01-01");
book_records.Add(dateMode);
List <List <Record> > all_sheet_records = new List <List <Record> >();
foreach (Worksheet worksheet in workbook.Worksheets)
{
List <Record> sheet_records = WorkSheetEncoder.Encode(worksheet, sharedResource);
Record.EncodeRecords(sheet_records);
all_sheet_records.Add(sheet_records);
}
book_records.AddRange(sharedResource.FormatRecords.ToArray());
book_records.AddRange(sharedResource.ExtendedFormats.ToArray());
List <BOUNDSHEET> boundSheets = new List <BOUNDSHEET>();
foreach (Worksheet worksheet in workbook.Worksheets)
{
BOUNDSHEET boundSheet = new BOUNDSHEET();
boundSheet.Visibility = 0; // 00H = Visible
boundSheet.SheetType = (byte)SheetType.Worksheet;
boundSheet.SheetName = worksheet.Name;
boundSheet.StreamPosition = 0;
boundSheets.Add(boundSheet);
book_records.Add(boundSheet);
}
if (sharedResource.Images.Count > 0)
{
book_records.Add(EncodeImages(sharedResource.Images));
}
Record.EncodeRecords(book_records);
int sstOffset = Record.CountDataLength(book_records);
book_records.Add(sharedResource.SharedStringTable);
book_records.Add(CreateEXTSST(sharedResource.SharedStringTable, sstOffset));
EOF eof = new EOF();
book_records.Add(eof);
Record.EncodeRecords(book_records);
int dataLength = Record.CountDataLength(book_records);
for (int i = 0; i < workbook.Worksheets.Count; i++)
{
boundSheets[i].StreamPosition = (uint)dataLength;
boundSheets[i].Encode();
int sheet_length = Record.CountDataLength(all_sheet_records[i]);
dataLength += sheet_length;
}
List <Record> all_records = new List <Record>();
all_records.AddRange(book_records);
foreach (List <Record> sheet_records in all_sheet_records)
{
all_records.AddRange(sheet_records);
}
return(all_records);
}
private static Record EncodePictures(Dictionary <Pair <int, int>, Picture> pictures, SharedResource sharedResource, Worksheet worksheet)
{
MSODRAWING msoDrawing = new MSODRAWING();
MsofbtDgContainer dgContainer = new MsofbtDgContainer();
msoDrawing.EscherRecords.Add(dgContainer);
MsofbtDg dg = new MsofbtDg();
dg.Instance = 1;
dg.NumShapes = pictures.Count + 1;
dg.LastShapeID = 1024 + pictures.Count;
dgContainer.EscherRecords.Add(dg);
MsofbtSpgrContainer spgrContainer = new MsofbtSpgrContainer();
dgContainer.EscherRecords.Add(spgrContainer);
MsofbtSpContainer spContainer0 = new MsofbtSpContainer();
spContainer0.EscherRecords.Add(new MsofbtSpgr());
MsofbtSp shape0 = new MsofbtSp();
shape0.ShapeId = 1024;
shape0.Flags = ShapeFlag.Group | ShapeFlag.Patriarch;
shape0.Version = 2;
spContainer0.EscherRecords.Add(shape0);
spgrContainer.EscherRecords.Add(spContainer0);
foreach (Picture pic in pictures.Values)
{
if (!sharedResource.Images.Contains(pic.Image))
{
sharedResource.Images.Add(pic.Image);
}
MsofbtSpContainer spContainer = new MsofbtSpContainer();
MsofbtSp shape = new MsofbtSp();
shape.Version = 2;
shape.ShapeType = ShapeType.PictureFrame;
shape.ShapeId = 1024 + spgrContainer.EscherRecords.Count;
shape.Flags = ShapeFlag.Haveanchor | ShapeFlag.Hasshapetype;
spContainer.EscherRecords.Add(shape);
MsofbtOPT opt = new MsofbtOPT();
opt.Add(PropertyIDs.LockAgainstGrouping, 33226880);
opt.Add(PropertyIDs.FitTextToShape, 262148);
opt.Add(PropertyIDs.BlipId, (uint)sharedResource.Images.IndexOf(pic.Image) + 1);
spContainer.EscherRecords.Add(opt);
MsofbtClientAnchor anchor = new MsofbtClientAnchor();
anchor.Row1 = pic.TopLeftCorner.RowIndex;
anchor.Col1 = pic.TopLeftCorner.ColIndex;
anchor.DX1 = pic.TopLeftCorner.DX;
anchor.DY1 = pic.TopLeftCorner.DY;
anchor.Row2 = pic.BottomRightCorner.RowIndex;
anchor.Col2 = pic.BottomRightCorner.ColIndex;
anchor.DX2 = pic.BottomRightCorner.DX;
anchor.DY2 = pic.BottomRightCorner.DY;
anchor.ExtraData = new byte[0];
spContainer.EscherRecords.Add(anchor);
spContainer.EscherRecords.Add(new MsofbtClientData());
spgrContainer.EscherRecords.Add(spContainer);
}
return(msoDrawing);
}
private static CellValue EncodeCell(Cell cell, SharedResource sharedResource)
{
object value = cell.Value;
if (value is int || value is short || value is uint || value is byte)
{
RK rk = new RK();
rk.Value = (uint)(Convert.ToInt32(value) << 2 | 2);
return(rk);
}
else if (value is decimal)
{
if (Math.Abs((decimal)value) <= (decimal)5368709.11)
{
RK rk = new RK();
rk.Value = (uint)((int)((decimal)value * 100) << 2 | 3); // integer and mul
return(rk);
}
else
{
NUMBER number = new NUMBER();
number.Value = (double)(decimal)value;
return(number);
}
}
else if (value is double)
{
//RK rk = new RK();
//Int64 data = BitConverter.DoubleToInt64Bits((double)value);
//rk.Value = (uint)(data >> 32) & 0xFFFFFFFC;
//return rk;
NUMBER number = new NUMBER();
number.Value = (double)value;
return(number);
}
else if (value is string)
{
LABELSST label = new LABELSST();
label.SSTIndex = sharedResource.GetSSTIndex((string)value);
return(label);
}
else if (value is DateTime)
{
NUMBER number = new NUMBER();
number.Value = sharedResource.EncodeDateTime((DateTime)value);
return(number);
}
else if (value is bool)
{
BOOLERR boolerr = new BOOLERR();
boolerr.ValueType = 0;
boolerr.Value = Convert.ToByte((bool)value);
return(boolerr);
}
else if (value is ErrorCode)
{
BOOLERR boolerr = new BOOLERR();
boolerr.ValueType = 1;
boolerr.Value = ((ErrorCode)value).Code;
return(boolerr);
}
else
{
throw new Exception("Invalid cell value.");
}
}
public static List <Record> Encode(Worksheet worksheet, SharedResource sharedResource)
{
List <Record> records = new List <Record>();
BOF bof = new BOF();
bof.BIFFversion = 0x0600; //0600H = BIFF8
bof.StreamType = StreamType.Worksheet;
bof.BuildID = 3515;
bof.BuildYear = 1996;
bof.RequiredExcelVersion = 6;
records.Add(bof);
foreach (KeyValuePair <Pair <UInt16, UInt16>, UInt16> colWidth in worksheet.Cells.ColumnWidth)
{
COLINFO colInfo = new COLINFO();
colInfo.FirstColIndex = colWidth.Key.Left;
colInfo.LastColIndex = colWidth.Key.Right;
colInfo.Width = colWidth.Value;
records.Add(colInfo);
}
DIMENSIONS dimensions = new DIMENSIONS();
if (worksheet.Cells.Rows.Count > 0)
{
dimensions.FirstRow = worksheet.Cells.FirstRowIndex;
dimensions.FirstColumn = (Int16)worksheet.Cells.FirstColIndex;
dimensions.LastRow = worksheet.Cells.LastRowIndex + 1;
dimensions.LastColumn = (Int16)(worksheet.Cells.LastColIndex + 1);
}
records.Add(dimensions);
// each Row Block contains 32 consecutive rows
List <Record> rowblock = new List <Record>(32);
List <Record> cellblock = new List <Record>();
for (int rowIndex = dimensions.FirstRow; rowIndex < dimensions.LastRow; rowIndex++)
{
if (worksheet.Cells.Rows.ContainsKey(rowIndex))
{
Row sheetRow = worksheet.Cells.Rows[rowIndex];
ROW biffRow = new ROW();
biffRow.RowIndex = (UInt16)rowIndex;
biffRow.FirstColIndex = (UInt16)sheetRow.FirstColIndex;
biffRow.LastColIndex = (UInt16)(sheetRow.LastColIndex + 1);
biffRow.RowHeight = sheetRow.Height;
biffRow.Flags = 0x0F0100; // defaul value 0x0100
rowblock.Add(biffRow);
for (int colIndex = sheetRow.FirstColIndex; colIndex <= sheetRow.LastColIndex; colIndex++)
{
Cell cell = sheetRow.GetCell(colIndex);
if (cell != Cell.EmptyCell && cell.Value != null)
{
CellValue cellRecord = EncodeCell(cell, sharedResource);
cellRecord.RowIndex = (UInt16)rowIndex;
cellRecord.ColIndex = (UInt16)colIndex;
cellRecord.XFIndex = (UInt16)sharedResource.GetXFIndex(cell.Format);
cellblock.Add(cellRecord);
}
}
if (rowblock.Count == 32)
{
records.AddRange(rowblock);
records.AddRange(cellblock);
rowblock.Clear();
cellblock.Clear();
}
}
}
if (rowblock.Count > 0)
{
records.AddRange(rowblock);
records.AddRange(cellblock);
}
if (worksheet.Pictures.Count > 0)
{
records.Add(EncodePictures(worksheet.Pictures, sharedResource, worksheet));
for (ushort id = 1; id <= worksheet.Pictures.Count; id++)
{
OBJ obj = new OBJ();
CommonObjectData objData = new CommonObjectData();
objData.ObjectID = id;
objData.ObjectType = 8;
objData.OptionFlags = 24593;
obj.SubRecords.Add(objData);
obj.SubRecords.Add(new End());
records.Add(obj);
}
}
EOF eof = new EOF();
records.Add(eof);
return(records);
}