fpspreadsheet: Add worksheet option soAutoDetectCellType

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@7059 8e941d3f-bd1b-0410-a28a-d453659cc2b4

components/fpspreadsheet/source/common/fpspreadsheet.pas

@@ -1183,7 +1183,7 @@ begin
 
   InitCryptoInfo(FCryptoInfo);
 
-  FOptions := [soShowGridLines, soShowHeaders];
+  FOptions := [soShowGridLines, soShowHeaders, soAutoDetectCellType];
 end;
 
 {@@ ----------------------------------------------------------------------------
@@ -5274,21 +5274,17 @@ begin
   isPercent := Pos('%', AValue) = Length(AValue);
   if isPercent then Delete(AValue, Length(AValue), 1);
 
-  {
+  // Try to detect the cell content type automatically
-  if IsTextFormat(numFmtParams) then
-  begin
-    WriteText(ACell, AValue);
-    exit;
-  end;
-  }
-
   if TryStrToCurrency(AValue, number, currSym, AFormatSettings) then
   begin
+    if (soAutoDetectCellType in FOptions) then begin
       WriteCurrency(ACell, number, nfCurrencyRed, -1, currSym);
       if IsTextFormat(numFmtParams) then begin
         WriteNumberFormat(ACell, nfText);
         WriteText(ACell, AValue);
       end;
+    end else
+      WriteNumber(ACell, number);
     exit;
   end;
 
@@ -5296,18 +5292,21 @@ begin
   if TryFractionStrToFloat(AValue, number, ismixed, maxdig) then
   begin
     WriteNumber(ACell, number);
+    if (soAutoDetectCellType in FOptions) then begin
       WriteFractionFormat(ACell, ismixed, maxdig, maxdig);
       if IsTextFormat(numFmtParams) then
       begin
         WriteNumberFormat(ACell, nfText);
         WriteText(ACell, AValue);
       end;
+    end;
     exit;
   end;
 
   // Check for a "number" value (floating point, or integer)
   if TryStrToFloat(AValue, number, AFormatSettings) then
   begin
+    if (soAutoDetectCellType in FOptions) then begin
       if isPercent then
         WriteNumber(ACell, number/100, nfPercentage)
       else
@@ -5322,14 +5321,19 @@ begin
         WriteNumberFormat(ACell, nfText);
         WriteText(ACell, AValue);
       end;
+    end else
+      // Use pre-formatted style
+      WriteNumber(ACell, number);
     exit;
   end;
 
+
   // Check for a date/time value:
   // Must be after float detection because StrToDateTime will accept a string
   // "1" as a valid date/time.
   if TryStrToDateTime(AValue, number, AFormatSettings) then
   begin
+    if (soAutoDetectCellType in FOptions) then begin
       if number < 1.0 then          // this is a time alone
       begin
         if not IsTimeFormat(numFmtParams) then
@@ -5357,6 +5361,9 @@ begin
         WriteNumberFormat(ACell, nfText);
         WriteText(ACell, AValue);
       end;
+    end else
+      // Use pre-formatted style
+      WriteDateTime(ACell, number);
     exit;
   end;
 

components/fpspreadsheet/source/common/fpstypes.pas

@@ -896,9 +896,10 @@ type
                               is defined by LeftPaneWidth and TopPaneHeight.
     @param soHidden           Worksheet is hidden.
     @param soProtected        Worksheet is protected
-    @param soPanesProtection  Panes are locked due to workbook protection }
+    @param soPanesProtection  Panes are locked due to workbook protection
+    @param soAutoDetectCellType  Auomatically detect type of cell content}
   TsSheetOption = (soShowGridLines, soShowHeaders, soHasFrozenPanes, soHidden,
-    soProtected, soPanesProtection);
+    soProtected, soPanesProtection, soAutoDetectCellType);
 
   {@@ Set of user interface options
     @ see TsSheetOption }

components/fpspreadsheet/source/visual/fpspreadsheetgrid.pas

@@ -99,6 +99,7 @@ type
     FEditing: Boolean;
     FCellFont: TFont;
     FAutoCalc: Boolean;
+    FAutoDetectCellType: Boolean;
     FTextOverflow: Boolean;
     FReadFormulas: Boolean;
     FDrawingCell: PCell;
@@ -187,6 +188,7 @@ type
     function GetWordwraps(ALeft, ATop, ARight, ABottom: Integer): Boolean;
     function GetZoomFactor: Double;
     procedure SetAutoCalc(AValue: Boolean);
+    procedure SetAutoDetectCellType(AValue: Boolean);
     procedure SetBackgroundColor(ACol, ARow: Integer; AValue: TsColor);
     procedure SetBackgroundColors(ALeft, ATop, ARight, ABottom: Integer; AValue: TsColor);
     procedure SetCellBiDiMode(ACol, ARow: Integer; AValue: TsBiDiMode);
@@ -338,6 +340,9 @@ type
       write FAllowDragAndDrop default true;
     {@@ Automatically recalculate formulas whenever a cell value changes. }
     property AutoCalc: Boolean read FAutoCalc write SetAutoCalc default false;
+    {@@ Automatically detect the cell's content type }
+    property AutoDetectCellType: Boolean read FAutoDetectCellType
+      write SetAutoDetectCellType default true;
     {@@ Automatically expand grid dimensions }
     property AutoExpand: TsAutoExpandModes read FAutoExpand write FAutoExpand
       default [aeData, aeNavigation, aeDefault];
@@ -618,6 +623,8 @@ type
     property AllowDragAndDrop;
     {@@ Automatically recalculates the worksheet formulas if a cell value changes. }
     property AutoCalc;
+    {@@ Automatically detect the cell's content type }
+    property AutoDetectCellType;
     {@@ Automatically expand grid dimensions }
     property AutoExpand;
     {@@ Displays column and row headers in the fixed col/row style of the grid.
@@ -1312,6 +1319,7 @@ begin
   AutoAdvance := aaDown;
   ExtendedSelect := true;
   FHeaderCount := 1;
+  FAutoDetectCellType := true;
   ColCount := DEFAULT_COL_COUNT + FHeaderCount;
   RowCount := DEFAULT_ROW_COUNT + FHeaderCount;
 
@@ -1970,6 +1978,7 @@ begin
     WorkbookSource.Options := WorkbookSource.Options + [boReadFormulas] else
     WorkbookSource.Options := Workbooksource.Options - [boReadFormulas];
   SetAutoCalc(FAutoCalc);
+  SetAutoDetectCellType(FAutoDetectCellType);
 end;
 
 {@@ ----------------------------------------------------------------------------
@@ -4709,6 +4718,7 @@ begin
   ae := RelaxAutoExpand;
   GetWorkbookSource.LoadFromSpreadsheetFile(AFileName, AFormat, AWorksheetIndex);
   RestoreAutoExpand(ae);
+  SetAutoDetectCellType(FAutoDetectCellType);
 end;
 
 {@@ ----------------------------------------------------------------------------
@@ -4731,6 +4741,7 @@ begin
   ae := RelaxAutoExpand;
   GetWorkbookSource.LoadFromSpreadsheetFile(AFileName, AFormatID, AWorksheetIndex);
   RestoreAutoExpand(ae);
+  SetAutoDetectCellType(FAutoDetectCellType);
 end;
 
 {@@ ----------------------------------------------------------------------------
@@ -4751,6 +4762,7 @@ begin
   ae := RelaxAutoExpand;
   GetWorkbookSource.LoadFromSpreadsheetFile(AFilename, AFormatID, AWorksheetIndex);
   RestoreAutoExpand(ae);
+  SetAutoDetectCellType(FAutoDetectCellType);
 end;
 
 {@@ ----------------------------------------------------------------------------
@@ -4771,6 +4783,7 @@ begin
   ae := RelaxAutoExpand;
   GetWorkbookSource.LoadFromWorkbook(AWorkbook, AWorksheetIndex);
   RestoreAutoExpand(ae);
+  SetAutoDetectCellType(FAutoDetectCellType);
   Invalidate;
 end;
 
@@ -6303,6 +6316,18 @@ begin
   end;
 end;
 
+procedure TsCustomWorksheetGrid.SetAutoDetectCellType(AValue: Boolean);
+begin
+  FAutoDetectCellType := AValue;
+
+  if Assigned(Worksheet) then begin
+    if FAutoDetectCellType then
+      Worksheet.Options := Worksheet.Options + [soAutoDetectCellType]
+    else
+      Worksheet.Options := Worksheet.Options - [soAutoDetectCellType];
+  end;
+end;
+
 procedure TsCustomWorksheetGrid.SetBackgroundColor(ACol, ARow: Integer;
   AValue: TsColor);
 var