fpspreadsheet: Extend CSV reader to allow multi-line quoted text cells. Modify TsWorksheetGrid to display multi-line text in formulabar.

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@3654 8e941d3f-bd1b-0410-a28a-d453659cc2b4

components/fpspreadsheet/examples/spready/mainform.lfm

@@ -359,49 +359,63 @@ object MainFrm: TMainFrm
   end
   object FormulaToolBar: TToolBar
     Left = 0
-    Height = 26
+    Height = 28
     Top = 53
     Width = 884
     Caption = 'FormulaToolBar'
+    Constraints.MinHeight = 26
     TabOrder = 2
-    object EdFormula: TEdit
-      Left = 129
-      Height = 24
+    object FormulaToolbarSplitter: TSplitter
+      Left = 171
+      Height = 26
       Top = 2
-      Width = 755
-      Align = alClient
-      OnEditingDone = EdFormulaEditingDone
-      TabOrder = 1
+      Width = 5
     end
-    object EdCellAddress: TEdit
+    object FormulaMemo: TMemo
+      Left = 176
+      Height = 26
+      Top = 2
+      Width = 708
+      Align = alClient
+      OnEditingDone = MemoFormulaEditingDone
+      TabOrder = 1
+      WantReturns = False
+    end
+    object AddressPanel: TPanel
       Left = 1
       Height = 24
       Top = 2
-      Width = 123
+      Width = 170
       Align = alLeft
-      Alignment = taCenter
-      OnEditingDone = EdCellAddressEditingDone
-      TabOrder = 0
-    end
-    object FormulaToolbarSplitter: TSplitter
-      Left = 124
-      Height = 24
-      Top = 2
-      Width = 5
+      BorderSpacing.Bottom = 2
+      BevelOuter = bvNone
+      ClientHeight = 24
+      ClientWidth = 170
+      TabOrder = 2
+      object EdCellAddress: TEdit
+        Left = 0
+        Height = 28
+        Top = 0
+        Width = 170
+        Align = alTop
+        Alignment = taCenter
+        OnEditingDone = EdCellAddressEditingDone
+        TabOrder = 0
+      end
     end
   end
   object InspectorSplitter: TSplitter
     Left = 648
-    Height = 453
-    Top = 79
+    Height = 446
+    Top = 86
     Width = 5
     Align = alRight
     ResizeAnchor = akRight
   end
   object InspectorPageControl: TPageControl
     Left = 653
-    Height = 453
-    Top = 79
+    Height = 446
+    Top = 86
     Width = 231
     ActivePage = PgCellValue
     Align = alRight
@@ -410,11 +424,11 @@ object MainFrm: TMainFrm
     OnChange = InspectorPageControlChange
     object PgCellValue: TTabSheet
       Caption = 'Cell value'
-      ClientHeight = 420
+      ClientHeight = 413
       ClientWidth = 223
       object CellInspector: TValueListEditor
         Left = 0
-        Height = 420
+        Height = 413
         Top = 0
         Width = 223
         Align = alClient
@@ -458,15 +472,15 @@ object MainFrm: TMainFrm
   end
   object TabControl: TTabControl
     Left = 0
-    Height = 453
-    Top = 79
+    Height = 446
+    Top = 86
     Width = 648
     OnChange = TabControlChange
     Align = alClient
     TabOrder = 3
     object WorksheetGrid: TsWorksheetGrid
       Left = 2
-      Height = 448
+      Height = 441
       Top = 3
       Width = 644
       FrozenCols = 0
@@ -514,6 +528,15 @@ object MainFrm: TMainFrm
       )
     end
   end
+  object Splitter1: TSplitter
+    Cursor = crVSplit
+    Left = 0
+    Height = 5
+    Top = 81
+    Width = 884
+    Align = alTop
+    ResizeAnchor = akTop
+  end
   object OpenDialog: TOpenDialog
     DefaultExt = '.xls'
     Filter = 'Excel spreadsheet (*.xls)|*.xls|Excel XML spreadsheet (*.xlsx)|*.xlsx|LibreOffice/OpenOffice spreadsheet (*.ods)|*.ods|Comma-delimited files (*.csv)|*.csv|Wikitable (pipes) (.wikitable_pipes)|*.wikitable_pipes|All files (*.*)|*.*'

components/fpspreadsheet/examples/spready/mainform.pas

@@ -89,7 +89,6 @@ type
     CbHeaderStyle: TComboBox;
     CbAutoCalcFormulas: TCheckBox;
     CbTextOverflow: TCheckBox;
-    EdFormula: TEdit;
     EdCellAddress: TEdit;
     FontComboBox: TComboBox;
     EdFrozenRows: TSpinEdit;
@@ -99,6 +98,7 @@ type
     Label1: TLabel;
     Label2: TLabel;
     MainMenu: TMainMenu;
+    FormulaMemo: TMemo;
     MenuItem1: TMenuItem;
     MenuItem10: TMenuItem;
     MenuItem11: TMenuItem;
@@ -215,6 +215,7 @@ type
     Panel1: TPanel;
     BordersPopupMenu: TPopupMenu;
     NumFormatPopupMenu: TPopupMenu;
+    AddressPanel: TPanel;
     SaveDialog: TSaveDialog;
     EdFrozenCols: TSpinEdit;
     FormulaToolBar: TToolBar;
@@ -222,6 +223,7 @@ type
     InspectorSplitter: TSplitter;
     PgCellValue: TTabSheet;
     PgProperties: TTabSheet;
+    Splitter1: TSplitter;
     TabControl: TTabControl;
     PgSheet: TTabSheet;
     ToolButton22: TToolButton;
@@ -291,7 +293,6 @@ type
     procedure CbBackgroundColorGetColors(Sender: TCustomColorBox; Items: TStrings);
     procedure CbTextOverflowChange(Sender: TObject);
     procedure EdCellAddressEditingDone(Sender: TObject);
-    procedure EdFormulaEditingDone(Sender: TObject);
     procedure EdFrozenColsChange(Sender: TObject);
     procedure EdFrozenRowsChange(Sender: TObject);
     procedure FontComboBoxSelect(Sender: TObject);
@@ -299,6 +300,7 @@ type
     procedure FormActivate(Sender: TObject);
     procedure FormCreate(Sender: TObject);
     procedure InspectorPageControlChange(Sender: TObject);
+    procedure MemoFormulaEditingDone(Sender: TObject);
     procedure TabControlChange(Sender: TObject);
     procedure WorksheetGridHeaderClick(Sender: TObject; IsColumn: Boolean;
       Index: Integer);
@@ -793,20 +795,6 @@ begin
   end;
 end;
 
-procedure TMainFrm.EdFormulaEditingDone(Sender: TObject);
-var
-  r, c: Cardinal;
-  s: String;
-begin
-  r := WorksheetGrid.GetWorksheetRow(WorksheetGrid.Row);
-  c := WorksheetGrid.GetWorksheetCol(WorksheetGrid.Col);
-  s := EdFormula.Text;
-  if (s <> '') and (s[1] = '=') then
-    WorksheetGrid.Worksheet.WriteFormula(r, c, Copy(s, 2, Length(s)), true)
-  else
-    WorksheetGrid.Worksheet.WriteCellValueAsString(r, c, EdFormula.Text);
-end;
-
 procedure TMainFrm.EdFrozenColsChange(Sender: TObject);
 begin
   WorksheetGrid.FrozenCols := EdFrozenCols.Value;
@@ -931,6 +919,20 @@ begin
   end;
 end;
 
+procedure TMainFrm.MemoFormulaEditingDone(Sender: TObject);
+var
+  r, c: Cardinal;
+  s: String;
+begin
+  r := WorksheetGrid.GetWorksheetRow(WorksheetGrid.Row);
+  c := WorksheetGrid.GetWorksheetCol(WorksheetGrid.Col);
+  s := FormulaMemo.Lines.Text;
+  if (s <> '') and (s[1] = '=') then
+    WorksheetGrid.Worksheet.WriteFormula(r, c, Copy(s, 2, Length(s)), true)
+  else
+    WorksheetGrid.Worksheet.WriteCellValueAsString(r, c, s);
+end;
+
 procedure TMainFrm.SetupBackgroundColorBox;
 begin
   // This change triggers re-reading of the workbooks palette by the OnGetColors
@@ -1244,24 +1246,26 @@ begin
     s := WorksheetGrid.Worksheet.ReadFormulaAsString(cell, true);
     if s <> '' then begin
       if s[1] <> '=' then s := '=' + s;
-      EdFormula.Text := s;
-    end
-    else
+      FormulaMemo.Lines.Text := s;
+    end else
+    begin
       case cell^.ContentType of
         cctNumber:
-          EdFormula.Text := FloatToStr(cell^.NumberValue);
+          s := FloatToStr(cell^.NumberValue);
         cctDateTime:
           if cell^.DateTimeValue < 1.0 then
-            EdFormula.Text := FormatDateTime('tt', cell^.DateTimeValue)
+            s := FormatDateTime('tt', cell^.DateTimeValue)
           else
-            EdFormula.Text := FormatDateTime('c', cell^.DateTimeValue);
+            s := FormatDateTime('c', cell^.DateTimeValue);
         cctUTF8String:
-          EdFormula.Text := cell^.UTF8StringValue;
+          s := cell^.UTF8StringValue;
         else
-          EdFormula.Text := WorksheetGrid.Worksheet.ReadAsUTF8Text(cell);
+          s := WorksheetGrid.Worksheet.ReadAsUTF8Text(cell);
       end;
+      FormulaMemo.Lines.Text := s;
+    end;
   end else
-    EdFormula.Text := '';
+    FormulaMemo.Text := '';
 
   EdCellAddress.Text := GetCellString(r, c, [rfRelRow, rfRelCol]);
   AcMergeCells.Checked := WorksheetGrid.Worksheet.IsMerged(cell);

components/fpspreadsheet/fpscsv.pas

@@ -263,6 +263,16 @@ begin
   c := 0;
   while AStream.Position < n do begin
     ch := char(AStream.ReadByte);
+    if (CSVParams.QuoteChar <> #0) and (ch = CSVParams.QuoteChar) then
+    begin
+      // Begin of quoted string --> read until next quote; this allows line breaks
+      // and column separators in quoted string!
+      cellValue := cellValue + ch;
+      repeat
+        ch := char(AStream.ReadByte);
+        cellValue := cellValue + ch;
+      until (AStream.Position = n) or (ch = CSVParams.QuoteChar);
+    end else
     if ch = CSVParams.Delimiter then begin
       // End of column reached
       ReadCellValue(r, c, cellValue);