fpspreadsheet: Add "Auto row height" command to menu of fps_ctrls demo.

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@5259 8e941d3f-bd1b-0410-a28a-d453659cc2b4

components/fpspreadsheet/examples/visual/fpsctrls/main.lfm

@@ -1,7 +1,7 @@
 object MainForm: TMainForm
-  Left = 350
+  Left = 256
   Height = 621
-  Top = 121
+  Top = 119
   Width = 997
   Caption = 'demo_ctrls'
   ClientHeight = 601
@@ -662,6 +662,7 @@ object MainForm: TMainForm
   end
   object ActionList: TActionList
     Images = ImageList
+    OnUpdate = ActionListUpdate
     left = 176
     top = 248
     object AcAddWorksheet: TsWorksheetAddAction
@@ -1835,6 +1836,12 @@ object MainForm: TMainForm
       Hint = 'Zoom factor 500%'
       Zoom = 500
     end
+    object AcAutoRowHeights: TAction
+      Category = 'Edit'
+      Caption = 'Auto row heights'
+      Hint = 'Automatic row height adjustment'
+      OnExecute = AcAutoRowHeightsExecute
+    end
   end
   object ImageList: TImageList
     left = 176
@@ -4416,6 +4423,12 @@ object MainForm: TMainForm
           AutoCheck = True
         end
       end
+      object MenuItem159: TMenuItem
+        Caption = '-'
+      end
+      object MenuItem158: TMenuItem
+        Action = AcAutoRowHeights
+      end
     end
     object MnuView: TMenuItem
       Caption = 'View'

components/fpspreadsheet/examples/visual/fpsctrls/main.pas

@@ -27,6 +27,7 @@ type
     AcShowHeaders: TAction;
     AcFrozenRows: TAction;
     AcFrozenCols: TAction;
+    AcAutoRowHeights: TAction;
     AcWorksheetRTL: TAction;
     AcViewInspector: TAction;
     ActionList: TActionList;
@@ -94,6 +95,8 @@ type
     MenuItem155: TMenuItem;
     MenuItem156: TMenuItem;
     MenuItem157: TMenuItem;
+    MenuItem158: TMenuItem;
+    MenuItem159: TMenuItem;
     MnuZoom: TMenuItem;
     MenuItem147: TMenuItem;
     MnuSettings: TMenuItem;
@@ -373,6 +376,7 @@ type
     WorkbookSource: TsWorkbookSource;
     WorkbookTabControl: TsWorkbookTabControl;
     WorksheetGrid: TsWorksheetGrid;
+    procedure AcAutoRowHeightsExecute(Sender: TObject);
     procedure AcColAddExecute(Sender: TObject);
     procedure AcColDeleteExecute(Sender: TObject);
     procedure AcFileOpenAccept(Sender: TObject);
@@ -386,6 +390,7 @@ type
       AWorkbook: TsWorkbook; var ANumFormatStr: String);
     procedure AcRowAddExecute(Sender: TObject);
     procedure AcRowDeleteExecute(Sender: TObject);
+    procedure ActionListUpdate(AAction: TBasicAction; var Handled: Boolean);
     procedure AcWorksheetRTLExecute(Sender: TObject);
     procedure AcWorksheetRTLUpdate(Sender: TObject);
     procedure AcSearchExecute(Sender: TObject);
@@ -448,6 +453,16 @@ end;
 
 { TMainForm }
 
+procedure TMainForm.AcAutoRowHeightsExecute(Sender: TObject);
+begin
+  Screen.Cursor := crHourglass;
+  try
+    WorksheetGrid.UpdateRowHeights(0, true);
+  finally
+    Screen.Cursor := crDefault;
+  end;
+end;
+
 { Adds a column before the active cell }
 procedure TMainForm.AcColAddExecute(Sender: TObject);
 begin
@@ -683,6 +698,13 @@ begin
   AcShowHeaders.Checked := WorksheetGrid.ShowHeaders;
 end;
 
+procedure TMainForm.ActionListUpdate(AAction: TBasicAction; var Handled: Boolean
+  );
+begin
+  if AAction = AcAutoRowHeights then
+    AcAutoRowHeights.Enabled := WorkbookSource.Worksheet <> nil;
+end;
+
 { Toggles the spreadsheet inspector on and off }
 procedure TMainForm.AcViewInspectorExecute(Sender: TObject);
 begin

components/fpspreadsheet/fpspreadsheetgrid.pas

@@ -4849,7 +4849,18 @@ begin
     if (lRow <> nil) then begin
       case lRow^.RowHeightType of
         rhtCustom:
-          h := round(CalcRowHeightFromSheet(lRow^.Height) * ZoomFactor);
+          begin
+            h := round(CalcRowHeightFromSheet(lRow^.Height) * ZoomFactor);
+            if AEnforceCalcRowHeight then begin
+              h := CalcAutoRowHeight(ARow);
+              if h = 0 then begin
+                h := DefaultRowHeight;
+                lRow^.RowHeightType := rhtDefault;
+              end else
+                lRow^.RowHeightType := rhtAuto;
+              lRow^.Height := CalcRowHeightToSheet(round(h / ZoomFactor));
+            end;
+          end;
         rhtAuto, rhtDefault:
           begin
             doCalcRowHeight := AEnforceCalcRowHeight or (lRow^.Height = 0);