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fpspreadsheet: Rearrange code in xls* units to inherit TsSpreadBIFF2Reader from TsSpreadBIFFReader (instead of TsCustomSpreadReader) and to reduce duplicated code

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git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@2985 8e941d3f-bd1b-0410-a28a-d453659cc2b4
This commit is contained in:
wp_xxyyzz
2014-05-01 21:47:41 +00:00
parent 019e7b604f
commit cb00cea75a
4 changed files with 378 additions and 368 deletions
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717
components/fpspreadsheet/xlsbiff2.pas
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@ -40,32 +40,27 @@ type
{ TsSpreadBIFF2Reader } { TsSpreadBIFF2Reader }
TsSpreadBIFF2Reader = class(TsCustomSpreadReader) TsSpreadBIFF2Reader = class(TsSpreadBIFFReader)
private private
WorkBookEncoding: TsEncoding; WorkBookEncoding: TsEncoding;
RecordSize: Word;
FWorksheet: TsWorksheet; FWorksheet: TsWorksheet;
FXFList: TFPList;
FFont: TsFont; FFont: TsFont;
procedure ReadRowInfo(AStream: TStream); procedure ReadRowInfo(AStream: TStream);
protected protected
procedure ApplyCellFormatting(ARow, ACol: Word; XF, AFormat, AFont, AStyle: Byte); procedure ApplyCellFormatting(ARow, ACol: Cardinal; XFIndex: Word); override;
procedure ReadRowColStyle(AStream: TStream; out ARow, ACol: Word;
out XF, AFormat, AFont, AStyle: byte);
{ Record reading methods }
procedure ReadBlank(AStream: TStream); override; procedure ReadBlank(AStream: TStream); override;
procedure ReadColWidth(AStream: TStream); procedure ReadColWidth(AStream: TStream);
procedure ReadFont(AStream: TStream); procedure ReadFont(AStream: TStream);
procedure ReadFontColor(AStream: TStream); procedure ReadFontColor(AStream: TStream);
procedure ReadFormula(AStream: TStream); override; procedure ReadFormula(AStream: TStream); override;
procedure ReadInteger(AStream: TStream);
procedure ReadLabel(AStream: TStream); override; procedure ReadLabel(AStream: TStream); override;
procedure ReadNumber(AStream: TStream); override; procedure ReadNumber(AStream: TStream); override;
procedure ReadInteger(AStream: TStream); procedure ReadRowColXF(AStream: TStream; out ARow, ACol: Cardinal; out AXF: Word); override;
procedure ReadXF(AStream: TStream); procedure ReadXF(AStream: TStream);
public public
{ General reading methods } { General reading methods }
constructor Create(AWorkbook: TsWorkbook); override;
destructor Destroy; override;
procedure ReadFromStream(AStream: TStream; AData: TsWorkbook); override; procedure ReadFromStream(AStream: TStream; AData: TsWorkbook); override;
end; end;
@ -94,7 +89,6 @@ type
procedure WriteRPNFormula(AStream: TStream; const ARow, ACol: Cardinal; const AFormula: TsRPNFormula; ACell: PCell); override; procedure WriteRPNFormula(AStream: TStream; const ARow, ACol: Cardinal; const AFormula: TsRPNFormula; ACell: PCell); override;
procedure WriteLabel(AStream: TStream; const ARow, ACol: Cardinal; const AValue: string; ACell: PCell); override; procedure WriteLabel(AStream: TStream; const ARow, ACol: Cardinal; const AValue: string; ACell: PCell); override;
procedure WriteNumber(AStream: TStream; const ARow, ACol: Cardinal; const AValue: double; ACell: PCell); override; procedure WriteNumber(AStream: TStream; const ARow, ACol: Cardinal; const AValue: double; ACell: PCell); override;
procedure WriteDateTime(AStream: TStream; const ARow, ACol: Cardinal; const AValue: TDateTime; ACell: PCell); override;
public public
{ General writing methods } { General writing methods }
procedure WriteToStream(AStream: TStream); override; procedure WriteToStream(AStream: TStream); override;
@ -125,6 +119,7 @@ const
INT_EXCEL_ID_ROWINFO = $0008; INT_EXCEL_ID_ROWINFO = $0008;
INT_EXCEL_ID_BOF = $0009; INT_EXCEL_ID_BOF = $0009;
INT_EXCEL_ID_EOF = $000A; INT_EXCEL_ID_EOF = $000A;
INT_EXCEL_ID_FORMAT = $001E;
INT_EXCEL_ID_COLWIDTH = $0024; INT_EXCEL_ID_COLWIDTH = $0024;
INT_EXCEL_ID_XF = $0043; INT_EXCEL_ID_XF = $0043;
INT_EXCEL_ID_IXFE = $0044; INT_EXCEL_ID_IXFE = $0044;
@ -140,10 +135,363 @@ const
INT_EXCEL_CHART = $0020; INT_EXCEL_CHART = $0020;
INT_EXCEL_MACRO_SHEET = $0040; INT_EXCEL_MACRO_SHEET = $0040;
type
TXFData = class { TsSpreadBIFF2Reader }
FontIndex: Integer;
procedure TsSpreadBIFF2Reader.ApplyCellFormatting(ARow, ACol: Cardinal;
XFIndex: Word);
var
lCell: PCell;
xfData: TXFListData;
style: Byte;
begin
lCell := FWorksheet.GetCell(ARow, ACol);
if Assigned(lCell) then begin
xfData := TXFListData(FXFList.items[XFIndex]);
// Font index, "bold" attribute
if xfData.FontIndex = 1 then
Include(lCell^.UsedFormattingFields, uffBold)
else
Include(lCell^.UsedFormattingFields, uffFont);
lCell^.FontIndex := xfData.FontIndex;
// Alignment
lCell^.HorAlignment := xfData.HorAlignment;
lCell^.VertAlignment := xfData.VertAlignment;
// Wordwrap not supported by BIFF2
Exclude(lCell^.UsedFormattingFields, uffWordwrap);
// Text rotation not supported by BIFF2
Exclude(lCell^.UsedFormattingFields, uffTextRotation);
// Border
if xfData.Borders <> [] then begin
Include(lCell^.UsedFormattingFields, uffBorder);
lCell^.Border := xfData.Borders;
end else
Exclude(lCell^.UsedFormattingFields, uffBorder);
// Background, only shaded, color is ignored
if xfData.BackgroundColor <> 0 then
Include(lCell^.UsedFormattingFields, uffBackgroundColor)
else
Exclude(lCell^.UsedFormattingFields, uffBackgroundColor);
end; end;
end;
procedure TsSpreadBIFF2Reader.ReadBlank(AStream: TStream);
var
ARow, ACol: Cardinal;
XF: Word;
begin
ReadRowColXF(AStream, ARow, ACol, XF);
ApplyCellFormatting(ARow, ACol, XF);
end;
procedure TsSpreadBIFF2Reader.ReadColWidth(AStream: TStream);
var
c, c1, c2: Cardinal;
w: Word;
col: TCol;
sheet: TsWorksheet;
begin
sheet := Workbook.GetFirstWorksheet;
// read column start and end index of column range
c1 := AStream.ReadByte;
c2 := AStream.ReadByte;
// read col width in 1/256 of the width of "0" character
w := WordLEToN(AStream.ReadWord);
// calculate width in units of "characters"
col.Width := w / 256;
// assign width to columns
for c := c1 to c2 do
sheet.WriteColInfo(c, col);
end;
procedure TsSpreadBIFF2Reader.ReadFont(AStream: TStream);
var
lHeight: Word;
lOptions: Word;
Len: Byte;
lFontName: UTF8String;
begin
FFont := TsFont.Create;
{ Height of the font in twips = 1/20 of a point }
lHeight := WordLEToN(AStream.ReadWord);
FFont.Size := lHeight/20;
{ Option flags }
lOptions := WordLEToN(AStream.ReadWord);
FFont.Style := [];
if lOptions and $0001 <> 0 then Include(FFont.Style, fssBold);
if lOptions and $0002 <> 0 then Include(FFont.Style, fssItalic);
if lOptions and $0004 <> 0 then Include(FFont.Style, fssUnderline);
if lOptions and $0008 <> 0 then Include(FFont.Style, fssStrikeout);
{ Font name: Unicodestring, char count in 1 byte }
Len := AStream.ReadByte();
SetLength(lFontName, Len);
AStream.ReadBuffer(lFontName[1], Len);
FFont.FontName := lFontName;
{ Add font to workbook's font list }
FWorkbook.AddFont(FFont);
end;
procedure TsSpreadBIFF2Reader.ReadFontColor(AStream: TStream);
begin
FFont.Color := WordLEToN(AStream.ReadWord);
end;
procedure TsSpreadBIFF2Reader.ReadFromStream(AStream: TStream; AData: TsWorkbook);
var
BIFF2EOF: Boolean;
RecordType: Word;
CurStreamPos: Int64;
begin
// Clear existing fonts. They will be replaced by those from the file.
FWorkbook.RemoveAllFonts;
{ Store some data about the workbook that other routines need }
WorkBookEncoding := AData.Encoding;
BIFF2EOF := False;
{ In BIFF2 files there is only one worksheet, let's create it }
FWorksheet := AData.AddWorksheet('');
{ Read all records in a loop }
while not BIFF2EOF do
begin
{ Read the record header }
RecordType := WordLEToN(AStream.ReadWord);
RecordSize := WordLEToN(AStream.ReadWord);
CurStreamPos := AStream.Position;
case RecordType of
INT_EXCEL_ID_BLANK : ReadBlank(AStream);
INT_EXCEL_ID_FONT : ReadFont(AStream);
INT_EXCEL_ID_FONTCOLOR : ReadFontColor(AStream);
INT_EXCEL_ID_INTEGER : ReadInteger(AStream);
INT_EXCEL_ID_NUMBER : ReadNumber(AStream);
INT_EXCEL_ID_LABEL : ReadLabel(AStream);
INT_EXCEL_ID_FORMULA : ReadFormula(AStream);
INT_EXCEL_ID_COLWIDTH : ReadColWidth(AStream);
INT_EXCEL_ID_ROWINFO : ReadRowInfo(AStream);
INT_EXCEL_ID_XF : ReadXF(AStream);
INT_EXCEL_ID_BOF : ;
INT_EXCEL_ID_EOF : BIFF2EOF := True;
else
// nothing
end;
// Make sure we are in the right position for the next record
AStream.Seek(CurStreamPos + RecordSize, soFromBeginning);
if AStream.Position >= AStream.Size then BIFF2EOF := True;
end;
end;
procedure TsSpreadBIFF2Reader.ReadFormula(AStream: TStream);
begin
end;
procedure TsSpreadBIFF2Reader.ReadLabel(AStream: TStream);
var
L: Byte;
ARow, ACol: Cardinal;
XF: Word;
AValue: array[0..255] of Char;
AStrValue: UTF8String;
begin
{ BIFF Record row/column/style }
ReadRowColXF(AStream, ARow, ACol, XF);
{ String with 8-bit size }
L := AStream.ReadByte();
AStream.ReadBuffer(AValue, L);
AValue[L] := #0;
{ Save the data }
case WorkBookEncoding of
seLatin2: AStrValue := CP1250ToUTF8(AValue);
seCyrillic: AStrValue := CP1251ToUTF8(AValue);
seGreek: AStrValue := CP1253ToUTF8(AValue);
seTurkish: AStrValue := CP1254ToUTF8(AValue);
seHebrew: AStrValue := CP1255ToUTF8(AValue);
seArabic: AStrValue := CP1256ToUTF8(AValue);
else
// Latin 1 is the default
AStrValue := CP1252ToUTF8(AValue);
end;
FWorksheet.WriteUTF8Text(ARow, ACol, AStrValue);
{ Apply formatting to cell }
ApplyCellFormatting(ARow, ACol, XF);
end;
procedure TsSpreadBIFF2Reader.ReadNumber(AStream: TStream);
var
ARow, ACol: Cardinal;
XF: Word;
AValue: Double;
begin
{ BIFF Record row/column/style }
ReadRowColXF(AStream, ARow, ACol, XF);
{ IEE 754 floating-point value }
AStream.ReadBuffer(AValue, 8);
{ Save the data }
FWorksheet.WriteNumber(ARow, ACol, AValue);
{ Apply formatting to cell }
ApplyCellFormatting(ARow, ACol, XF);
end;
procedure TsSpreadBIFF2Reader.ReadInteger(AStream: TStream);
var
ARow, ACol: Cardinal;
XF: Word;
AWord : Word;
begin
{ BIFF Record row/column/style }
ReadRowColXF(AStream, ARow, ACol, XF);
{ 16 bit unsigned integer }
AStream.ReadBuffer(AWord, 2);
{ Save the data }
FWorksheet.WriteNumber(ARow, ACol, AWord);
{ Apply formatting to cell }
ApplyCellFormatting(ARow, ACol, XF);
end;
// Read the row, column and xf index
procedure TsSpreadBIFF2Reader.ReadRowColXF(AStream: TStream;
out ARow, ACol: Cardinal; out AXF: WORD);
begin
{ BIFF Record data for row and column}
ARow := WordLEToN(AStream.ReadWord);
ACol := WordLEToN(AStream.ReadWord);
{ Index to XF record }
AXF := AStream.ReadByte;
{ Index to format and font record, Cell style - ignored because contained in XF
Must read to keep the record in sync. }
AStream.ReadWord;
end;
procedure TsSpreadBIFF2Reader.ReadRowInfo(AStream: TStream);
type
TRowRecord = packed record
RowIndex: Word;
Col1: Word;
Col2: Word;
Height: Word;
end;
var
rowrec: TRowRecord;
lRow: PRow;
h: word;
begin
AStream.ReadBuffer(rowrec, SizeOf(TRowRecord));
h := WordLEToN(rowrec.Height);
if h and $8000 = 0 then begin // if this bit were set, rowheight would be default
lRow := FWorksheet.GetRow(WordLEToN(rowrec.RowIndex));
// Row height is encoded into the 15 remaining bits in units "twips" (1/20 pt)
lRow^.Height := TwipsToMillimeters(h and $7FFF);
end;
end;
procedure TsSpreadBIFF2Reader.ReadXF(AStream: TStream);
{
Offset Size Contents
0 1 Index to FONT record (➜5.45)
1 1 Not used
2 1 Number format and cell flags:
Bit Mask Contents
5-0 3FH Index to FORMAT record (➜5.49)
6 40H 1 = Cell is locked
7 80H 1 = Formula is hidden
3 1 Horizontal alignment, border style, and background:
Bit Mask Contents
2-0 07H XF_HOR_ALIGN – Horizontal alignment
0 General, 1 Left, 2 Centred, 3 Right, 4 Filled
3 08H 1 = Cell has left black border
4 10H 1 = Cell has right black border
5 20H 1 = Cell has top black border
6 40H 1 = Cell has bottom black border
7 80H 1 = Cell has shaded background
}
type
TXFRecord = packed record // see p. 224
FontIndex: byte; // Offset 0, Size 1
NotUsed: byte; // Offset 1, Size 1
NumFormat_Flags: byte; // Offset 2, Size 1
HorAlign_Border_BackGround: Byte; // Offset 3, Size 1
end;
var
lData: TXFListData;
xf: TXFRecord;
b: Byte;
begin
AStream.ReadBuffer(xf, SizeOf(xf));
lData := TXFListData.Create;
// Font index
lData.FontIndex := xf.FontIndex;
// Format index
lData.FormatIndex := xf.NumFormat_Flags and $07;
// Horizontal alignment
b := xf.HorAlign_Border_Background and MASK_XF_HOR_ALIGN;
if (b <= ord(High(TsHorAlignment))) then
lData.HorAlignment := TsHorAlignment(b)
else
lData.HorAlignment := haDefault;
// Vertical alignment - not used in BIFF2
lData.VertAlignment := vaBottom;
// Word wrap - not used in BIFF2
lData.WordWrap := false;
// Text rotation - not used in BIFF2
lData.TextRotation := trHorizontal;
// Borders
lData.Borders := [];
if xf.HorAlign_Border_Background and $08 <> 0 then
Include(lData.Borders, cbWest);
if xf.HorAlign_Border_Background and $10 <> 0 then
Include(lData.Borders, cbEast);
if xf.HorAlign_Border_Background and $20 <> 0 then
Include(lData.Borders, cbNorth);
if xf.HorAlign_Border_Background and $40 <> 0 then
Include(lData.Borders, cbSouth);
// Background color not supported, only shaded background
if xf.HorAlign_Border_Background and $80 <> 0 then
lData.BackgroundColor := 1 // shaded background = "true"
else
ldata.BackgroundColor := 0; // shaded background = "false"
// Add the decoded data to the list
FXFList.Add(lData);
end;
{ TsSpreadBIFF2Writer } { TsSpreadBIFF2Writer }
@ -341,9 +689,8 @@ begin
lFormatIndex := 0; //General format (one of the built-in number formats) lFormatIndex := 0; //General format (one of the built-in number formats)
lBorders := []; lBorders := [];
lHorAlign := FFormattingStyles[i].HorAlignment; lHorAlign := FFormattingStyles[i].HorAlignment;
(*
// Now apply the modifications. // Now apply the modifications.
(*
if uffNumberFormat in FFormattingStyles[i].UsedFormattingFields then if uffNumberFormat in FFormattingStyles[i].UsedFormattingFields then
case FFormattingStyles[i].NumberFormat of case FFormattingStyles[i].NumberFormat of
nfFixed: nfFixed:
@ -403,7 +750,6 @@ begin
lFormatIndex := FORMAT_TIME_INTERVAL; lFormatIndex := FORMAT_TIME_INTERVAL;
end; end;
*) *)
if uffBorder in FFormattingStyles[i].UsedFormattingFields then if uffBorder in FFormattingStyles[i].UsedFormattingFields then
lBorders := FFormattingStyles[i].Border; lBorders := FFormattingStyles[i].Border;
@ -815,343 +1161,6 @@ begin
AStream.WriteBuffer(AValue, 8); AStream.WriteBuffer(AValue, 8);
end; end;
{*******************************************************************
* TsSpreadBIFF2Writer.WriteDateTime ()
*
* DESCRIPTION: Writes a date/time value as a text
* ISO 8601 format is used to preserve interoperability
* between locales.
*
* Note: this should be replaced by writing actual date/time values
*
*******************************************************************}
procedure TsSpreadBIFF2Writer.WriteDateTime(AStream: TStream;
const ARow, ACol: Cardinal; const AValue: TDateTime; ACell: PCell);
begin
WriteLabel(AStream, ARow, ACol, FormatDateTime(ISO8601Format, AValue), ACell);
end;
{ TsSpreadBIFF2Reader }
constructor TsSpreadBIFF2Reader.Create(AWorkbook: TsWorkbook);
begin
inherited Create(AWorkbook);
FXFList := TFPList.Create;
end;
destructor TsSpreadBIFF2Reader.Destroy;
var
j: integer;
begin
for j := FXFList.Count-1 downto 0 do TObject(FXFList[j]).Free;
FXFList.Free;
inherited;
end;
procedure TsSpreadBIFF2Reader.ApplyCellFormatting(ARow, ACol: Word;
XF, AFormat, AFont, AStyle: Byte);
var
lCell: PCell;
xfData: TXFData;
begin
lCell := FWorksheet.GetCell(ARow, ACol);
if Assigned(lCell) then begin
xfData := TXFData(FXFList.items[xf]);
// Font index, "bold" attribute
if xfData.FontIndex = 1 then
Include(lCell^.UsedFormattingFields, uffBold)
else
Include(lCell^.UsedFormattingFields, uffFont);
lCell^.FontIndex := xfData.FontIndex;
// Horizontal justification
if AStyle and $07 <> 0 then begin
Include(lCell^.UsedFormattingFields, uffHorAlign);
lCell^.HorAlignment := TsHorAlignment(AStyle and $07);
end;
// Border
if AStyle and $78 <> 0 then begin
Include(lCell^.UsedFormattingFields, uffBorder);
lCell^.Border := [];
if AStyle and $08 <> 0 then Include(lCell^.Border, cbWest);
if AStyle and $10 <> 0 then Include(lCell^.Border, cbEast);
if AStyle and $20 <> 0 then Include(lCell^.Border, cbNorth);
if AStyle and $40 <> 0 then Include(lCell^.Border, cbSouth);
end else
Exclude(lCell^.UsedFormattingFields, uffBorder);
// Background
if AStyle and $80 <> 0 then begin
Include(lCell^.UsedFormattingFields, uffBackgroundColor);
// Background color is ignored
end;
end;
end;
procedure TsSpreadBIFF2Reader.ReadBlank(AStream: TStream);
var
ARow, ACol: Word;
XF, AFormat, AFont, AStyle: Byte;
begin
ReadRowColStyle(AStream, ARow, ACol, XF, AFormat, AFont, AStyle);
ApplyCellFormatting(ARow, ACol, XF, AFormat, AFont, AStyle);
end;
procedure TsSpreadBIFF2Reader.ReadColWidth(AStream: TStream);
var
c, c1, c2: Cardinal;
w: Word;
col: TCol;
sheet: TsWorksheet;
begin
sheet := Workbook.GetFirstWorksheet;
// read column start and end index of column range
c1 := AStream.ReadByte;
c2 := AStream.ReadByte;
// read col width in 1/256 of the width of "0" character
w := WordLEToN(AStream.ReadWord);
// calculate width in units of "characters"
col.Width := w / 256;
// assign width to columns
for c := c1 to c2 do
sheet.WriteColInfo(c, col);
end;
procedure TsSpreadBIFF2Reader.ReadFont(AStream: TStream);
var
lHeight: Word;
lOptions: Word;
Len: Byte;
lFontName: UTF8String;
begin
FFont := TsFont.Create;
{ Height of the font in twips = 1/20 of a point }
lHeight := WordLEToN(AStream.ReadWord);
FFont.Size := lHeight/20;
{ Option flags }
lOptions := WordLEToN(AStream.ReadWord);
FFont.Style := [];
if lOptions and $0001 <> 0 then Include(FFont.Style, fssBold);
if lOptions and $0002 <> 0 then Include(FFont.Style, fssItalic);
if lOptions and $0004 <> 0 then Include(FFont.Style, fssUnderline);
if lOptions and $0008 <> 0 then Include(FFont.Style, fssStrikeout);
{ Font name: Unicodestring, char count in 1 byte }
Len := AStream.ReadByte();
SetLength(lFontName, Len);
AStream.ReadBuffer(lFontName[1], Len);
FFont.FontName := lFontName;
{ Add font to workbook's font list }
FWorkbook.AddFont(FFont);
end;
procedure TsSpreadBIFF2Reader.ReadFontColor(AStream: TStream);
begin
FFont.Color := WordLEToN(AStream.ReadWord);
end;
procedure TsSpreadBIFF2Reader.ReadFromStream(AStream: TStream; AData: TsWorkbook);
var
BIFF2EOF: Boolean;
RecordType: Word;
CurStreamPos: Int64;
begin
// Clear existing fonts. They will be replaced by those from the file.
FWorkbook.RemoveAllFonts;
{ Store some data about the workbook that other routines need }
WorkBookEncoding := AData.Encoding;
BIFF2EOF := False;
{ In BIFF2 files there is only one worksheet, let's create it }
FWorksheet := AData.AddWorksheet('');
{ Read all records in a loop }
while not BIFF2EOF do
begin
{ Read the record header }
RecordType := WordLEToN(AStream.ReadWord);
RecordSize := WordLEToN(AStream.ReadWord);
CurStreamPos := AStream.Position;
case RecordType of
INT_EXCEL_ID_BLANK : ReadBlank(AStream);
INT_EXCEL_ID_FONT : ReadFont(AStream);
INT_EXCEL_ID_FONTCOLOR : ReadFontColor(AStream);
INT_EXCEL_ID_INTEGER : ReadInteger(AStream);
INT_EXCEL_ID_NUMBER : ReadNumber(AStream);
INT_EXCEL_ID_LABEL : ReadLabel(AStream);
INT_EXCEL_ID_FORMULA : ReadFormula(AStream);
INT_EXCEL_ID_COLWIDTH : ReadColWidth(AStream);
INT_EXCEL_ID_ROWINFO : ReadRowInfo(AStream);
INT_EXCEL_ID_XF : ReadXF(AStream);
INT_EXCEL_ID_BOF : ;
INT_EXCEL_ID_EOF : BIFF2EOF := True;
else
// nothing
end;
// Make sure we are in the right position for the next record
AStream.Seek(CurStreamPos + RecordSize, soFromBeginning);
if AStream.Position >= AStream.Size then BIFF2EOF := True;
end;
end;
procedure TsSpreadBIFF2Reader.ReadFormula(AStream: TStream);
begin
end;
procedure TsSpreadBIFF2Reader.ReadLabel(AStream: TStream);
var
L: Byte;
ARow, ACol: Word;
XF, AFormat, AFont, AStyle: Byte;
AValue: array[0..255] of Char;
AStrValue: UTF8String;
begin
{ BIFF Record row/column/style }
ReadRowColStyle(AStream, ARow, ACol, XF, AFormat, AFont, AStyle);
{ String with 8-bit size }
L := AStream.ReadByte();
AStream.ReadBuffer(AValue, L);
AValue[L] := #0;
{ Save the data }
case WorkBookEncoding of
seLatin2: AStrValue := CP1250ToUTF8(AValue);
seCyrillic: AStrValue := CP1251ToUTF8(AValue);
seGreek: AStrValue := CP1253ToUTF8(AValue);
seTurkish: AStrValue := CP1254ToUTF8(AValue);
seHebrew: AStrValue := CP1255ToUTF8(AValue);
seArabic: AStrValue := CP1256ToUTF8(AValue);
else
// Latin 1 is the default
AStrValue := CP1252ToUTF8(AValue);
end;
FWorksheet.WriteUTF8Text(ARow, ACol, AStrValue);
{ Apply formatting to cell }
ApplyCellFormatting(ARow, ACol, XF, AFormat, AFont, AStyle);
end;
procedure TsSpreadBIFF2Reader.ReadNumber(AStream: TStream);
var
ARow, ACol: Word;
XF, AFormat, AFont, AStyle: Byte;
AValue: Double;
begin
{ BIFF Record row/column/style }
ReadRowColStyle(AStream, ARow, ACol, XF, AFormat, AFont, AStyle);
{ IEE 754 floating-point value }
AStream.ReadBuffer(AValue, 8);
{ Save the data }
FWorksheet.WriteNumber(ARow, ACol, AValue);
{ Apply formatting to cell }
ApplyCellFormatting(ARow, ACol, XF, AFormat, AFont, AStyle);
end;
procedure TsSpreadBIFF2Reader.ReadInteger(AStream: TStream);
var
ARow, ACol: Word;
XF, AFormat, AFont, AStyle: Byte;
AWord : Word;
begin
{ BIFF Record row/column/style }
ReadRowColStyle(AStream, ARow, ACol, XF, AFormat, AFont, AStyle);
{ 16 bit unsigned integer }
AStream.ReadBuffer(AWord, 2);
{ Save the data }
FWorksheet.WriteNumber(ARow, ACol, AWord);
{ Apply formatting to cell }
ApplyCellFormatting(ARow, ACol, XF, AFormat, AFont, AStyle);
end;
procedure TsSpreadBIFF2Reader.ReadRowColStyle(AStream: TStream;
out ARow, ACol: Word; out XF, AFormat, AFont, AStyle: byte);
type
TRowColStyleRecord = packed record
Row, Col: Word;
XFIndex: Byte;
Format_Font: Byte;
Style: Byte;
end;
var
rcs: TRowColStyleRecord;
begin
AStream.ReadBuffer(rcs, SizeOf(TRowColStyleRecord));
ARow := WordLEToN(rcs.Row);
ACol := WordLEToN(rcs.Col);
XF := rcs.XFIndex;
AFormat := (rcs.Format_Font AND $3F);
AFont := (rcs.Format_Font AND $C0) shr 6;
AStyle := rcs.Style;
end;
procedure TsSpreadBIFF2Reader.ReadRowInfo(AStream: TStream);
type
TRowRecord = packed record
RowIndex: Word;
Col1: Word;
Col2: Word;
Height: Word;
end;
var
rowrec: TRowRecord;
lRow: PRow;
h: word;
begin
AStream.ReadBuffer(rowrec, SizeOf(TRowRecord));
h := WordLEToN(rowrec.Height);
if h and $8000 = 0 then begin // if this bit were set, rowheight would be default
lRow := FWorksheet.GetRow(WordLEToN(rowrec.RowIndex));
// Row height is encoded into the 15 remaining bits in units "twips" (1/20 pt)
lRow^.Height := TwipsToMillimeters(h and $7FFF);
end;
end;
procedure TsSpreadBIFF2Reader.ReadXF(AStream: TStream);
type
TXFRecord = packed record // see p. 224
FontIndex: byte; // Offset 0, Size 1
NotUsed: byte; // Offset 1, Size 1
NumFormat_Flags: byte; // Offset 2, Size 1
HorAlign_Border_BackGround: Byte; // Offset 3, Size 1
end;
var
xfData: TXFData;
xf: TXFRecord;
b: Byte;
begin
AStream.ReadBuffer(xf, SizeOf(xf));
xfData := TXFData.Create;
// Font index
xfData.FontIndex := xf.FontIndex;
// Add the XF to the list
FXFList.Add(xfData);
end;
{******************************************************************* {*******************************************************************
* Initialization section * Initialization section

2
components/fpspreadsheet/xlsbiff5.pas
View File

@ -77,7 +77,6 @@ type
TsSpreadBIFF5Reader = class(TsSpreadBIFFReader) TsSpreadBIFF5Reader = class(TsSpreadBIFFReader)
private private
RecordSize: Word;
FWorksheetNames: TStringList; FWorksheetNames: TStringList;
FCurrentWorksheet: Integer; FCurrentWorksheet: Integer;
protected protected
@ -1296,7 +1295,6 @@ begin
lWordwrap := (uffWordwrap in FFormattingStyles[i].UsedFormattingFields); lWordwrap := (uffWordwrap in FFormattingStyles[i].UsedFormattingFields);
// And finally write the style // And finally write the style
WriteXF(AStream, lFontIndex, lFormatIndex, 0, lTextRotation, lBorders, WriteXF(AStream, lFontIndex, lFormatIndex, 0, lTextRotation, lBorders,
lHorAlign, lVertAlign, lWordwrap, lAddBackground, lBackgroundColor); lHorAlign, lVertAlign, lWordwrap, lAddBackground, lBackgroundColor);
end; end;

14
components/fpspreadsheet/xlsbiff8.pas
View File

@ -68,7 +68,6 @@ type
TsSpreadBIFF8Reader = class(TsSpreadBIFFReader) TsSpreadBIFF8Reader = class(TsSpreadBIFFReader)
private private
RecordSize: Word;
PendingRecordSize: SizeInt; PendingRecordSize: SizeInt;
FWorksheetNames: TStringList; FWorksheetNames: TStringList;
FCurrentWorksheet: Integer; FCurrentWorksheet: Integer;
@ -1913,10 +1912,10 @@ begin
ReadRowColXF(AStream, ARow, ACol, XF); ReadRowColXF(AStream, ARow, ACol, XF);
{ Result of the formula in IEE 754 floating-point value } { Result of the formula in IEE 754 floating-point value }
AStream.ReadBuffer(Data,Sizeof(Data)); AStream.ReadBuffer(Data, Sizeof(Data));
{ Options flags } { Options flags }
Flags:=WordLEtoN(AStream.ReadWord); Flags := WordLEtoN(AStream.ReadWord);
{ Not used } { Not used }
AStream.ReadDWord; AStream.ReadDWord;
@ -1931,11 +1930,12 @@ begin
WriteLn('');} WriteLn('');}
//RPN data not used by now //RPN data not used by now
AStream.Position:=AStream.Position+FormulaSize; AStream.Position := AStream.Position + FormulaSize;
if SizeOf(Double)<>8 then Raise Exception.Create('Double is not 8 bytes'); if SizeOf(Double) <> 8 then
Move(Data[0],ResultFormula,sizeof(Data)); raise Exception.Create('Double is not 8 bytes');
FWorksheet.WriteNumber(ARow,ACol,ResultFormula); Move(Data[0], ResultFormula, SizeOf(Data));
FWorksheet.WriteNumber(ARow, ACol, ResultFormula);
{Add attributes} {Add attributes}
ApplyCellFormatting(ARow, ACol, XF); ApplyCellFormatting(ARow, ACol, XF);

11
components/fpspreadsheet/xlscommon.pas
View File

@ -320,6 +320,7 @@ type
{ TsSpreadBIFFReader } { TsSpreadBIFFReader }
TsSpreadBIFFReader = class(TsCustomSpreadReader) TsSpreadBIFFReader = class(TsCustomSpreadReader)
protected protected
RecordSize: Word;
FCodepage: string; // in a format prepared for lconvencoding.ConvertEncoding FCodepage: string; // in a format prepared for lconvencoding.ConvertEncoding
FDateMode: TDateMode; FDateMode: TDateMode;
FPaletteFound: Boolean; FPaletteFound: Boolean;
@ -344,11 +345,11 @@ type
// Read FORMAT record (cell formatting) // Read FORMAT record (cell formatting)
procedure ReadFormat(AStream: TStream); virtual; procedure ReadFormat(AStream: TStream); virtual;
// Read floating point number // Read floating point number
procedure ReadNumber(AStream: TStream); virtual; procedure ReadNumber(AStream: TStream); override;
// Read palette // Read palette
procedure ReadPalette(AStream: TStream); procedure ReadPalette(AStream: TStream);
// Read the row, column, and XF index at the current stream position // Read the row, column, and XF index at the current stream position
procedure ReadRowColXF(AStream: TStream; out ARow, ACol: Cardinal; out AXF: Word); procedure ReadRowColXF(AStream: TStream; out ARow, ACol: Cardinal; out AXF: Word); virtual;
// Read row info // Read row info
procedure ReadRowInfo(AStream: TStream); virtual; procedure ReadRowInfo(AStream: TStream); virtual;
public public
@ -806,6 +807,7 @@ begin
end; end;
// Read the row, column and xf index // Read the row, column and xf index
// NOT VALID for BIFF2
procedure TsSpreadBIFFReader.ReadRowColXF(AStream: TStream; procedure TsSpreadBIFFReader.ReadRowColXF(AStream: TStream;
out ARow, ACol: Cardinal; out AXF: WORD); out ARow, ACol: Cardinal; out AXF: WORD);
begin begin
@ -1116,8 +1118,9 @@ begin
end; end;
end; end;
{ Writes a date/time/datetime to a Biff 5/8 NUMBER record, with a date/time format { Writes a date/time/datetime to a Biff NUMBER record, with a date/time format
(There is no separate date record type in xls) } (There is no separate date record type in xls)
Valid for all BIFF versions. }
procedure TsSpreadBIFFWriter.WriteDateTime(AStream: TStream; const ARow, procedure TsSpreadBIFFWriter.WriteDateTime(AStream: TStream; const ARow,
ACol: Cardinal; const AValue: TDateTime; ACell: PCell); ACol: Cardinal; const AValue: TDateTime; ACell: PCell);
var var