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fpspreadsheet: Merged cell, hyperlink and row height support for html writer. Fix reading order of rich-text and asian phonetic info for biff8 reader.
git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@4220 8e941d3f-bd1b-0410-a28a-d453659cc2b4
This commit is contained in:
wp_xxyyzz
@ -1,5 +1,5 @@
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{
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htmltablewrite.lpr
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htmlwrite.lpr
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Demonstrates how to write a table in html format using the fpspreadsheet library
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}
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@ -34,14 +34,19 @@ type (*
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*)
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TsHTMLWriter = class(TsCustomSpreadWriter)
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private
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FFormatSettings: TFormatSettings;
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FPointSeparatorSettings: TFormatSettings;
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function GetBackgroundAsStyle(AFill: TsFillPattern): String;
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function GetBorderAsStyle(ABorder: TsCellBorders; const ABorderStyles: TsCellBorderStyles): String;
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function GetColWidthAsAttr(AColIndex: Integer): String;
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function GetFontAsStyle(AFontIndex: Integer): String;
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function GetGridBorderAsStyle: String;
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function GetHorAlignAsStyle(AHorAlign: TsHorAlignment): String;
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function GetTextRotation(ATextRot: TsTextRotation): String;
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function GetMergedRangeAsStyle(AMergeBase: PCell): String;
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function GetRowHeightAsAttr(ARowIndex: Integer): String;
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function GetTextRotationAsStyle(ATextRot: TsTextRotation): String;
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function GetVertAlignAsStyle(AVertAlign: TsVertAlignment): String;
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function GetWordWrapAsStyle(AWordWrap: Boolean): String;
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function IsHyperlinkTarget(ACell: PCell; out ABookmark: String): Boolean;
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procedure WriteBody(AStream: TStream);
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procedure WriteWorksheet(AStream: TStream; ASheet: TsWorksheet);
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@ -64,12 +69,14 @@ type (*
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public
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constructor Create(AWorkbook: TsWorkbook); override;
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destructor Destroy; override;
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procedure WriteToStream(AStream: TStream); override;
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procedure WriteToStrings(AStrings: TStrings); override;
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end;
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TsHTMLParams = record
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SheetIndex: Integer; // W: Index of the sheet to be written
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ShowRowColHeaders: Boolean; // RW: Show row/column headers
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TrueText: String; // RW: String for boolean TRUE
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FalseText: String; // RW: String for boolean FALSE
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end;
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@ -77,6 +84,7 @@ type (*
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var
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HTMLParams: TsHTMLParams = (
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SheetIndex: -1; // -1 = active sheet, MaxInt = all sheets
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ShowRowColHeaders: false;
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TrueText: 'TRUE';
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FalseText: 'FALSE';
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);
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@ -84,11 +92,24 @@ var
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implementation
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uses
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LazUTF8, fpsUtils;
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LazUTF8, URIParser, Math,
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fpsUtils;
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constructor TsHTMLWriter.Create(AWorkbook: TsWorkbook);
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begin
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inherited Create(AWorkbook);
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FPointSeparatorSettings := DefaultFormatSettings;
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FPointSeparatorSettings.DecimalSeparator := '.';
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// No design limiations in table size
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// http://stackoverflow.com/questions/4311283/max-columns-in-html-table
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FLimitations.MaxColCount := MaxInt;
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FLimitations.MaxRowCount := MaxInt;
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end;
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destructor TsHTMLWriter.Destroy;
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begin
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inherited Destroy;
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end;
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function TsHTMLWriter.CellFormatAsString(ACell: PCell; ForThisTag: String): String;
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@ -104,9 +125,9 @@ begin
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'td':
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if ACell = nil then
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begin
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Result := 'border-collapse:collapse; ';
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Result := 'border-collapse:collapse;';
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if soShowGridLines in FWorksheet.Options then
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Result := Result + 'border:1px solid lightgrey; '
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Result := Result + GetGridBorderAsStyle;
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end else
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begin
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if (uffVertAlign in fmt^.UsedFormattingFields) then
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@ -114,16 +135,15 @@ begin
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if (uffBorder in fmt^.UsedFormattingFields) then
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Result := Result + GetBorderAsStyle(fmt^.Border, fmt^.BorderStyles)
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else begin
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Result := Result + 'border-collapse:collapse; ';
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if soShowGridLines in FWorksheet.Options then
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Result := Result + 'border:1px solid lightgrey; ';
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Result := Result + GetGridBorderAsStyle;
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end;
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if (uffBackground in fmt^.UsedFormattingFields) then
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Result := Result + GetBackgroundAsStyle(fmt^.Background);
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if (uffFont in fmt^.UsedFormattingFields) then
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Result := Result + GetFontAsStyle(fmt^.FontIndex);
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if (uffTextRotation in fmt^.UsedFormattingFields) then
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Result := Result + GetTextRotation(fmt^.TextRotation);
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Result := Result + GetTextRotationAsStyle(fmt^.TextRotation);
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end;
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'div', 'p':
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begin
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@ -161,7 +181,12 @@ function TsHTMLWriter.GetBorderAsStyle(ABorder: TsCellBorders;
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const ABorderStyles: TsCellBorderStyles): String;
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const
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BORDER_NAMES: array[TsCellBorder] of string = (
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'border-top', 'border-left', 'border-right', 'border-bottom', '', ''
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'border-top', // cbNorth
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'border-left', // cbWest
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'border-right', // cbEast
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'border-bottom', // cbSouth
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'', // cbDiagUp
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'' // cbDiagDown
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);
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LINESTYLE_NAMES: array[TsLineStyle] of string = (
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'thin solid', // lsThin
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@ -169,33 +194,80 @@ const
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'thin dashed', // lsDashed
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'thin dotted', // lsDotted
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'thick solid', // lsThick,
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'thin double', // lsDouble,
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'double', // lsDouble,
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'1px solid' // lsHair
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);
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var
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cb: TsCellBorder;
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allEqual: Boolean;
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bs: TsCellBorderStyle;
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begin
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Result := 'border-collape:collapse';
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Result := 'border-collape:collapse;';
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if ABorder = [cbNorth, cbEast, cbWest, cbSouth] then
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begin
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allEqual := true;
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bs := ABorderStyles[cbNorth];
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for cb in TsCellBorder do
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begin
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if bs.LineStyle <> ABorderStyles[cb].LineStyle then
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begin
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allEqual := false;
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break;
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end;
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if bs.Color <> ABorderStyles[cb].Color then
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begin
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allEqual := false;
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break;
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end;
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end;
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if allEqual then
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begin
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Result := 'border:' +
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LINESTYLE_NAMES[bs.LineStyle] + ' ' +
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ColorToHTMLColorStr(bs.Color) + ';';
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exit;
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end;
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end;
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for cb in TsCellBorder do
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begin
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if BORDER_NAMES[cb] = '' then
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continue;
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if cb in ABorder then
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Result := Result + BORDER_NAMES[cb] + ':' +
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LINESTYLE_NAMES[ABorderStyles[cb].LineStyle] + ' ' +
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ColorToHTMLColorStr(ABorderStyles[cb].Color) + ';';
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end;
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end;
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function TsHTMLWriter.GetColWidthAsAttr(AColIndex: Integer): String;
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var
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col: PCol;
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w: Single;
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rLast: Cardinal;
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begin
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if AColIndex < 0 then // Row header column
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begin
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rLast := FWorksheet.GetLastRowIndex;
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w := Length(IntToStr(rLast)) + 2;
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end else
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begin
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w := FWorksheet.DefaultColWidth;
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col := FWorksheet.FindCol(AColIndex);
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if col <> nil then
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w := col^.Width;
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end;
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w := w * FWorkbook.GetDefaultFont.Size;
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Result:= Format(' width="%.1fpt"', [w], FPointSeparatorSettings);
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end;
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function TsHTMLWriter.GetFontAsStyle(AFontIndex: Integer): String;
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var
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fs: TFormatSettings;
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font: TsFont;
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begin
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fs := DefaultFormatSettings;
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fs.DecimalSeparator := '.';
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font := FWorkbook.GetFont(AFontIndex);
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Result := Format('font-family:''%s'';font-size:%.1fpt;color:%s;', [
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font.FontName, font.Size, ColorToHTMLColorStr(font.Color)], fs);
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font.FontName, font.Size, ColorToHTMLColorStr(font.Color)], FPointSeparatorSettings);
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if fssBold in font.Style then
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Result := Result + 'font-weight:700;';
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if fssItalic in font.Style then
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@ -210,6 +282,11 @@ begin
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Result := Result + 'text-decoration:line-through;';
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end;
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function TsHTMLWriter.GetGridBorderAsStyle: String;
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begin
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Result := 'border:1px solid lightgrey;';
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end;
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function TsHTMLWriter.GetHorAlignAsStyle(AHorAlign: TsHorAlignment): String;
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begin
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case AHorAlign of
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@ -219,7 +296,33 @@ begin
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end;
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end;
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function TsHTMLWriter.GetTextRotation(ATextRot: TsTextRotation): String;
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function TsHTMLWriter.GetMergedRangeAsStyle(AMergeBase: PCell): String;
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var
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r1, r2, c1, c2: Cardinal;
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begin
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Result := '';
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FWorksheet.FindMergedRange(AMergeBase, r1, c1, r2, c2);
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if c1 <> c2 then
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Result := Result + ' colspan="' + IntToStr(c2-c1+1) + '"';
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if r1 <> r2 then
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Result := Result + ' rowspan="' + IntToStr(r2-r1+1) + '"';
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end;
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function TsHTMLWriter.GetRowHeightAsAttr(ARowIndex: Integer): String;
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var
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h: Single;
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row: PRow;
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begin
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h := FWorksheet.DefaultRowHeight;
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row := FWorksheet.FindRow(ARowIndex);
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if row <> nil then
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h := row^.Height;
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h := (h + ROW_HEIGHT_CORRECTION) * FWorkbook.GetDefaultFont.Size;
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Result := Format(' height="%.1fpt"', [h], FPointSeparatorSettings);
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end;
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function TsHTMLWriter.GetTextRotationAsStyle(ATextRot: TsTextRotation): String;
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begin
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Result := '';
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case ATextRot of
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@ -249,8 +352,38 @@ begin
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if AWordwrap then
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Result := 'word-wrap:break-word;'
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else
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Result := 'white-space:nowrap'; //-moz-pre-wrap -o-pre-wrap pre-wrap;';
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{ Firefox Opera Chrome }
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Result := 'white-space:nowrap';
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end;
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function TsHTMLWriter.IsHyperlinkTarget(ACell: PCell; out ABookmark: String): Boolean;
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var
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sheet: TsWorksheet;
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hyperlink: PsHyperlink;
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target, sh: String;
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i, r, c: Cardinal;
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begin
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Result := false;
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if ACell = nil then
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exit;
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for i:=0 to FWorkbook.GetWorksheetCount-1 do
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begin
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sheet := FWorkbook.GetWorksheetByIndex(i);
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for hyperlink in sheet.Hyperlinks do
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begin
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SplitHyperlink(hyperlink^.Target, target, ABookmark);
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if (target <> '') or (ABookmark = '') then
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continue;
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if ParseSheetCellString(ABookmark, sh, r, c) then
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if (sh = TsWorksheet(ACell^.Worksheet).Name) and
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(r = ACell^.Row) and (c = ACell^.Col)
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then
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exit(true);
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if (sheet = FWorksheet) and ParseCellString(ABookmark, r, c) then
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if (r = ACell^.Row) and (c = ACell^.Col) then
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exit(true);
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end;
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end;
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end;
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procedure TsHTMLWriter.WriteBlank(AStream: TStream; const ARow, ACol: Cardinal;
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@ -347,13 +480,15 @@ procedure TsHTMLWriter.WriteLabel(AStream: TStream; const ARow, ACol: Cardinal;
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const
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ESCAPEMENT_TAG: Array[TsFontPosition] of String = ('', 'sup', 'sub');
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var
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L: TStringList;
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style: String;
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i, n, len: Integer;
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txt, textp: String;
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txt, textp, target, bookmark: String;
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rtParam: TsRichTextParam;
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fnt, cellfnt: TsFont;
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escapement: String;
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hyperlink: PsHyperlink;
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isTargetCell: Boolean;
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u: TUri;
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begin
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Unused(ARow, ACol, AValue);
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@ -363,19 +498,51 @@ begin
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style := CellFormatAsString(ACell, 'div');
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// Hyperlink
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target := '';
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if FWorksheet.HasHyperlink(ACell) then
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begin
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hyperlink := FWorksheet.FindHyperlink(ACell);
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SplitHyperlink(hyperlink^.Target, target, bookmark);
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n := Length(hyperlink^.Target);
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i := Length(target);
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len := Length(bookmark);
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if (target <> '') and (pos('file:', target) = 0) then
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begin
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u := ParseURI(target);
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if u.Protocol = '' then
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target := '../' + target;
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end;
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// ods absolutely wants "/" path delimiters in the file uri!
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FixHyperlinkPathdelims(target);
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if (bookmark <> '') then
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target := target + '#' + bookmark;
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end;
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// Activate hyperlink target if it is within the same file
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isTargetCell := IsHyperlinkTarget(ACell, bookmark);
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if isTargetCell then bookmark := ' id="' + bookmark + '"' else bookmark := '';
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// No hyperlink, normal text only
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if Length(ACell^.RichTextParams) = 0 then
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begin
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// Standard text formatting
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ValidXMLText(txt);
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if target <> '' then txt := Format('<a href="%s">%s</a>', [target, txt]);
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AppendToStream(AStream,
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'<div' + style + '>' + txt + '</div>')
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'<div' + bookmark + style + '>' + txt + '</div>')
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end else
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begin
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// "Rich-text" formatting
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cellfnt := FWorksheet.ReadCellFont(ACell);
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len := UTF8Length(AValue);
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textp := '<div' + style + '>';
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textp := '<div' + bookmark + style + '>';
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if target <> '' then
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textp := textp + '<a href="' + target + '">';
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rtParam := ACell^.RichTextParams[0];
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if rtParam.StartIndex > 0 then
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begin
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@ -412,24 +579,11 @@ begin
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textp := textp + txt;
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end;
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end;
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if target <> '' then
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textp := textp + '</a></div>' else
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textp := textp + '</div>';
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AppendToStream(AStream, textp);
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end;
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{
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L := TStringList.Create;
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try
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L.Text := ACell^.UTF8StringValue;
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if L.Count = 1 then
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AppendToStream(AStream,
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'<div' + style + '>' + s + '</div>')
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else
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for i := 0 to L.Count-1 do
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AppendToStream(AStream, '<p><div'+ style + '>' + L[i] + '</div></p>');
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finally
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L.Free;
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end;
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}
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end;
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{ Writes a number cell to the stream. }
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@ -439,17 +593,11 @@ var
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s: String;
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style: String;
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begin
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Unused(AStream);
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Unused(ARow, ACol);
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style := CellFormatAsString(ACell, 'div');
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{
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if HTMLParams.NumberFormat <> '' then
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s := Format(HTMLParams.NumberFormat, [AValue], FFormatSettings)
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else
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}
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s := FWorksheet.ReadAsUTF8Text(ACell, FFormatSettings);
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s := FWorksheet.ReadAsUTF8Text(ACell, FWorkbook.FormatSettings);
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AppendToStream(AStream,
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'<div' + style + '>' + s + '</div>');
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end;
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@ -461,7 +609,6 @@ begin
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'<!DOCTYPE html>' +
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'<html>' +
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'<head>'+
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// '<title>Written by FPSpreadsheet</title>' +
|
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'<meta charset="utf-8">' +
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'</head>');
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WriteBody(AStream);
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@ -492,8 +639,8 @@ var
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style: String;
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fixedLayout: Boolean;
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col: PCol;
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w: Single;
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fs: TFormatSettings;
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row: PRow;
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||||
w, h: Single;
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||||
begin
|
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FWorksheet := ASheet;
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@ -502,9 +649,6 @@ begin
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rLast := FWorksheet.GetLastOccupiedRowIndex;
|
||||
cLast := FWorksheet.GetLastOccupiedColIndex;
|
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|
||||
fs := DefaultFormatSettings;
|
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fs.DecimalSeparator := '.';
|
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|
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fixedLayout := false;
|
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for c:=cFirst to cLast do
|
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begin
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@ -520,7 +664,7 @@ begin
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|
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style := style + 'border-collapse:collapse; ';
|
||||
if soShowGridLines in FWorksheet.Options then
|
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style := style + 'border:1px solid lightgrey; ';
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style := style + GetGridBorderAsStyle;
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||||
|
||||
if fixedLayout then
|
||||
style := style + 'table-layout:fixed; '
|
||||
@ -530,30 +674,82 @@ begin
|
||||
AppendToStream(AStream,
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||||
'<div>' +
|
||||
'<table style="' + style + '">');
|
||||
|
||||
if HTMLParams.ShowRowColHeaders then
|
||||
begin
|
||||
// width of row-header column
|
||||
style := '';
|
||||
if soShowGridLines in FWorksheet.Options then
|
||||
style := style + GetGridBorderAsStyle;
|
||||
if style <> '' then
|
||||
style := ' style="' + style + '"';
|
||||
style := style + GetColWidthAsAttr(-1);
|
||||
AppendToStream(AStream,
|
||||
'<th' + style + '/>');
|
||||
// Column headers
|
||||
for c := cFirst to cLast do
|
||||
begin
|
||||
style := '';
|
||||
if soShowGridLines in FWorksheet.Options then
|
||||
style := style + GetGridBorderAsStyle;
|
||||
if style <> '' then
|
||||
style := ' style="' + style + '"';
|
||||
if fixedLayout then
|
||||
style := style + GetColWidthAsAttr(c);
|
||||
AppendToStream(AStream,
|
||||
'<th' + style + '>' + GetColString(c) + '</th>');
|
||||
end;
|
||||
end;
|
||||
|
||||
for r := rFirst to rLast do begin
|
||||
AppendToStream(AStream,
|
||||
'<tr>');
|
||||
for c := cFirst to cLast do begin
|
||||
cell := FWorksheet.FindCell(r, c);
|
||||
style := CellFormatAsString(cell, 'td');
|
||||
|
||||
if (c = cFirst) then
|
||||
begin
|
||||
w := FWorksheet.DefaultColWidth;
|
||||
if fixedLayout then
|
||||
begin
|
||||
col := FWorksheet.GetCol(c);
|
||||
if col <> nil then
|
||||
w := col^.Width;
|
||||
style := Format(' width="%.1fpt"', [w*FWorkbook.GetDefaultFont.Size], fs) + style;
|
||||
// Row headers
|
||||
if HTMLParams.ShowRowColHeaders then begin
|
||||
style := '';
|
||||
if soShowGridLines in FWorksheet.Options then
|
||||
style := style + GetGridBorderAsStyle;
|
||||
if style <> '' then
|
||||
style := ' style="' + style + '"';
|
||||
style := style + GetRowHeightAsAttr(r);
|
||||
AppendToStream(AStream,
|
||||
'<th' + style + '>' + IntToStr(r+1) + '</th>');
|
||||
end;
|
||||
|
||||
for c := cFirst to cLast do begin
|
||||
// Pointer to current cell in loop
|
||||
cell := FWorksheet.FindCell(r, c);
|
||||
|
||||
// Cell formatting
|
||||
style := CellFormatAsString(cell, 'td'); // this contains the 'style="..."'
|
||||
|
||||
if not HTMLParams.ShowRowColHeaders then
|
||||
begin
|
||||
// Column width
|
||||
if fixedLayout then
|
||||
style := GetColWidthAsAttr(c) + style;
|
||||
|
||||
// Row heights (should be in "tr", but does not work there)
|
||||
style := GetRowHeightAsAttr(r) + style;
|
||||
end;
|
||||
|
||||
// Merged cells
|
||||
if FWorksheet.IsMerged(cell) then
|
||||
begin
|
||||
if FWorksheet.IsMergeBase(cell) then
|
||||
style := style + GetMergedRangeAsStyle(cell)
|
||||
else
|
||||
Continue;
|
||||
end;
|
||||
|
||||
if (cell = nil) or (cell^.ContentType = cctEmpty) then
|
||||
// Empty cell
|
||||
AppendToStream(AStream,
|
||||
'<td' + style + ' />')
|
||||
else
|
||||
begin
|
||||
// Cell with data
|
||||
AppendToStream(AStream,
|
||||
'<td' + style + '>');
|
||||
WriteCellToStream(AStream, cell);
|
||||
|
||||
@ -658,7 +658,7 @@ var
|
||||
RunsCounter: WORD;
|
||||
AsianPhoneticBytes: DWORD;
|
||||
i: Integer;
|
||||
j: SizeUInt;
|
||||
j: Integer; //j: SizeUInt;
|
||||
lLen: SizeInt;
|
||||
RecordType: WORD;
|
||||
RecordSize: WORD;
|
||||
@ -666,17 +666,17 @@ var
|
||||
begin
|
||||
StringFlags := AStream.ReadByte;
|
||||
Dec(PendingRecordSize);
|
||||
if StringFlags and 8 = 8 then begin
|
||||
// Rich string
|
||||
RunsCounter := WordLEtoN(AStream.ReadWord);
|
||||
dec(PendingRecordSize,2);
|
||||
end;
|
||||
if StringFlags and 4 = 4 then begin
|
||||
// Asian phonetics
|
||||
// Read Asian phonetics Length (not used)
|
||||
AsianPhoneticBytes := DWordLEtoN(AStream.ReadDWord);
|
||||
dec(PendingRecordSize,4);
|
||||
end;
|
||||
if StringFlags and 8 = 8 then begin
|
||||
// Rich string
|
||||
RunsCounter := WordLEtoN(AStream.ReadWord);
|
||||
dec(PendingRecordSize,2);
|
||||
end;
|
||||
if StringFlags and 1 = 1 Then begin
|
||||
// String is WideStringLE
|
||||
if (ALength*SizeOf(WideChar)) > PendingRecordSize then begin
|
||||
@ -717,7 +717,7 @@ begin
|
||||
if StringFlags and 8 = 8 then begin
|
||||
// Rich string (This only occurs in BIFF8)
|
||||
SetLength(ARichTextRuns, RunsCounter);
|
||||
for j := 0 to RunsCounter - 1 do begin
|
||||
for j := 0 to SmallInt(RunsCounter) - 1 do begin
|
||||
if (PendingRecordSize <= 0) then begin
|
||||
// A CONTINUE may happened here
|
||||
RecordType := WordLEToN(AStream.ReadWord);
|
||||
@ -1814,10 +1814,15 @@ begin
|
||||
begin
|
||||
// Size of character array incl trailing zero
|
||||
size := DWordLEToN(AStream.ReadDWord);
|
||||
len := size div 2 -1;
|
||||
// Character array of URL (16-bit-characters, with trailing zero word)
|
||||
// See 3 lines below: This buffer is too large!
|
||||
len := size div 2 - 1;
|
||||
SetLength(wideStr, len);
|
||||
AStream.ReadBuffer(wideStr[1], size);
|
||||
// The buffer can be larger than the space occupied by the wideStr.
|
||||
// --> Find true string length and convert wide string to utf-8.
|
||||
len := StrLen(PWideChar(widestr));
|
||||
SetLength(widestr, len);
|
||||
link := UTF8Encode(widestr);
|
||||
end else
|
||||
// Check for local file
|
||||
|
||||
Reference in New Issue
Block a user