Merged revision(s) 64165 #7d90e95e0b, 64167-64168 #51302252eb-#51302252eb, 64195 #aa8f480e17, 64199 #473e65ba01, 64211 #1c9c36d205, 64267 #5197500844 from trunk:

LCL: Propogate TAction.ImageIndex to TSpeedButton.ImageIndex. Issue #38135, patch from Anton Kavalenka.
........
LCL-GTK2: Paint a form with one color also after scrolling. Issue #16183, patch from Joeny Ang.
........
LCL/CheckGroup: Fix items and checkboxes getting out of sync upon Items.Insert. Issue #38157.
........
LCL/Grids: Fix grids truncating cell height during editing if TitleFont.Size is smaller than Font.Size. Issue #38203).
........
IDE: Prevent an infinite loop when comparing files. Issue #38185, patch from Domingo Galmés.
........
LCL/FileListbox: Update selected filename when ItemIndex is set
........
LCL: Fix selected items of TComboBoxEx and TCheckComboBox not being painted with color clHighlightText.
........

git-svn-id: branches/fixes_2_0@64612 -

ide/diffpatch.pas

@@ -616,6 +616,8 @@ begin
       // chomp empty lines at end
       fPart1.GetPrevLineExtends(Cur1);
       fPart2.GetPrevLineExtends(Cur2);
+      if (Cur1.LineNumber < 1) or (Cur2.LineNumber < 1) then
+        break;
     until not LinesAreEqual(Cur1,Cur2);
   end;
 end;

lcl/buttons.pp

@@ -289,9 +289,11 @@ type
     procedure AssignClient(AClient: TObject); override;
     procedure SetGroupIndex(Value: Integer); override;
     procedure SetChecked(Value: Boolean); override;
+    procedure SetImageIndex(Value: Integer); override;
   public
     function IsCheckedLinked: Boolean; override;
     function IsGroupIndexLinked: Boolean; override;
+    function IsImageIndexLinked: Boolean; override;
   end;
 
   { TCustomSpeedButton }

lcl/filectrl.pp

@@ -62,6 +62,7 @@ Type
     procedure Loaded; override;
     function IndexOfFile(const AFilename: string): integer;
     procedure KeyUp(var Key: Word; Shift: TShiftState); override;
+    procedure SetItemIndex(AIndex: Integer); override;
   public
     constructor Create(TheOwner: TComponent); override;
     destructor Destroy; override;
@@ -420,6 +421,12 @@ begin
   UpdateFileList;
 end;
 
+procedure TCustomFileListbox.SetItemIndex(AIndex: Integer);
+begin
+  inherited;
+  UpdateSelectedFileName;
+end;
+
 procedure TCustomFileListBox.SetFileName(const AValue: String);
 var
   i: Integer;

lcl/grids.pas

@@ -8433,6 +8433,9 @@ begin
       // high control coords (like GTK2)
       CellR := Bounds(-FEditor.Width-100, -FEditor.Height-100, CellR.Right-CellR.Left, CellR.Bottom-CellR.Top);
 
+    // Make sure to use the grid font, not that of the title (issue #38203).
+    Canvas.Font.Assign(Font);
+
     if FEditorOptions and EO_AUTOSIZE = EO_AUTOSIZE then begin
       if (FEditor = FStringEditor) and (EditorBorderStyle = bsNone) then
         CellR := TWSCustomGridClass(WidgetSetClass).

lcl/include/comboex.inc

@@ -422,7 +422,7 @@ begin  { do not call inherited ! }
     end;
   anyRect.Top:=(ARect.Top+ARect.Bottom-FTextHeight) div 2;
   anyRect.Bottom:=anyRect.Top+FTextHeight;
-  ThemeServices.DrawText(Canvas, aDetail, ItemsEx[Index].Caption, anyRect, aFlags, 0);
+  DrawText(Canvas.Handle, PChar(ItemsEx[Index].Caption), Length(ItemsEx[Index].Caption), anyRect, aFlags);
 end;
 
 procedure TCustomComboBoxEx.FontChanged(Sender: TObject);
@@ -684,7 +684,7 @@ begin  { do not call inherited ! }
     end;
   anyRect.Top:=(ARect.Top+ARect.Bottom-FTextHeight) div 2;
   anyRect.Bottom:=anyRect.Top+FTextHeight;
-  ThemeServices.DrawText(Canvas, aDetail, Items[Index], anyRect, aFlags, 0);
+  DrawText(Canvas.Handle, PChar(Items[Index]), Length(Items[Index]), anyRect, aFlags);
 end;
 
 procedure TCustomCheckCombo.DropDown;

lcl/include/customcheckgroup.inc

@@ -23,6 +23,7 @@ type
     procedure SaveCheckStates(out AStates: TByteDynArray);
   protected
     procedure Changed; override;
+    procedure InsertItem(Index: Integer; const S: string; O: TObject); override;
   public
     constructor Create(TheCheckGroup: TCustomCheckGroup);
     procedure Delete(AIndex: Integer); override;
@@ -61,6 +62,24 @@ begin
   RestoreCheckStates(b);
 end;
 
+procedure TCheckGroupStringList.InsertItem(Index: Integer; const S: string; O: TObject);
+var
+  i: Integer;
+  b: TByteDynArray;
+begin
+  if csLoading in FCheckGroup.ComponentState then
+    inherited
+  else begin
+    SaveCheckStates(b);
+    inherited;
+    SetLength(b, Length(b)+1);
+    for i := High(b) downto Index+1 do
+      b[i] := b[i-1];
+    b[Index] := 2;  // default for new item: unchecked, enabled
+    RestoreCheckStates(b);
+  end;
+end;
+
 procedure TCheckGroupStringList.RestoreCheckStates(const AStates: TByteDynArray);
 var
   i: Integer;

lcl/include/speedbutton.inc

@@ -1226,6 +1226,12 @@ begin
     (SpeedButton.GroupIndex = (Action as TCustomAction).GroupIndex);
 end;
 
+function TSpeedButtonActionLink.IsImageIndexLinked: Boolean;
+begin
+  Result := inherited IsImageIndexLinked and
+    (TSpeedButton(FClient).ImageIndex = (Action as TCustomAction).ImageIndex);
+end;
+
 procedure TSpeedButtonActionLink.SetGroupIndex(Value: Integer);
 begin
   if IsGroupIndexLinked then TCustomSpeedButton(FClient).GroupIndex := Value;
@@ -1236,6 +1242,12 @@ begin
   if IsCheckedLinked then TCustomSpeedButton(FClient).Down := Value;
 end;
 
+procedure TSpeedButtonActionLink.SetImageIndex(Value: Integer);
+begin
+  if IsImageIndexLinked then
+    TSpeedButton(FClient).ImageIndex := Value;
+end;
+
 
 {$IFDEF ASSERT_IS_ON}
   {$UNDEF ASSERT_IS_ON}

lcl/interfaces/gtk2/gtk2proc.inc

@@ -7603,7 +7603,7 @@ function CreateFormContents(AForm: TCustomForm;
   var FormWidget: Pointer; AWidgetInfo: PWidgetInfo = nil): Pointer;
 var
   ScrolledWidget, ClientAreaWidget: PGtkWidget;
-  WindowStyle: PGtkStyle;
+//  WindowStyle: PGtkStyle;
   Adjustment: PGtkAdjustment;
 begin
   // Create the VBox. We need that to place controls outside
@@ -7620,8 +7620,10 @@ begin
   gtk_widget_show(ScrolledWidget);
 
   ClientAreaWidget := gtk_layout_new(nil, nil);
-  WindowStyle := GetStyle(lgsWindow);
-  gtk_widget_set_style(ClientAreaWidget, WindowStyle);
+  // issue #16183: not sure why the GtkLayout is given a GtkWindow style here,
+  // this prevents setting color to the GtkLayout
+//  WindowStyle := GetStyle(lgsWindow);
+//  gtk_widget_set_style(ClientAreaWidget, WindowStyle);
   //debugln('CreateFormContents Style=',GetStyleDebugReport(WindowStyle));
   gtk_container_add(PGtkContainer(ScrolledWidget), ClientAreaWidget);
 

lcl/interfaces/gtk2/gtk2widgetset.inc

@@ -2283,7 +2283,10 @@ begin
 
   if ChangeBGColor then
   begin
-    if (BGColor = clDefault) or (BGColor = clBtnFace) then
+    // setting bg color to nil will cancel previous calls to gtk_widget_modify_bg()
+    // cannot use nil on a GtkLayout (issue #16183)
+    if not GTK_IS_LAYOUT(AWidget) and
+      ((BGColor = clDefault) or (BGColor = clBtnFace)) then
       NewColor := nil
     else
     begin

lcl/interfaces/gtk2/gtk2wsforms.pp

@@ -857,8 +857,27 @@ begin
 end;
 
 class procedure TGtk2WSCustomForm.SetColor(const AWinControl: TWinControl);
+var
+  AScrolled: PGtkWidget;
+  AColor: TColor;
 begin
   TGtk2WSWinControl.SetColor(AWinControl);
+
+  // Forms: GtkWindow->GtkVBox->gtkScrolledWindow->GtkLayout
+  // we need to set the color of the GtkLayout so that the whole viewport
+  // will be filled (issue #16183)
+  AScrolled := g_object_get_data({%H-}PGObject(AWinControl.Handle), odnScrollArea);
+  if GTK_IS_SCROLLED_WINDOW(AScrolled) and
+    GTK_IS_LAYOUT({%H-}PGtkBin(AScrolled)^.child) then
+  begin
+    AColor := AWinControl.Color;
+    if AColor = clDefault then
+      AColor := GetDefaultColor(AWinControl, dctBrush);
+    Gtk2WidgetSet.SetWidgetColor({%H-}PGtkBin(AScrolled)^.child,
+                                 clNone, AColor,
+                                 [GTK_STATE_NORMAL, GTK_STATE_ACTIVE,
+                                  GTK_STATE_PRELIGHT, GTK_STATE_SELECTED]);
+  end;
 end;
 
 class procedure TGtk2WSCustomForm.SetRealPopupParent(
@@ -964,12 +983,20 @@ begin
 end;
 
 class procedure TGtk2WSScrollingWinControl.SetColor(const AWinControl: TWinControl);
+var
+  AColor: TColor;
 begin
   if not WSCheckHandleAllocated(AWinControl, 'SetColor')
   then Exit;
 
+  // ScrollingWinControl: GtkScrolledWindow->GtkLayout
+  // we need to set the color of the GtkLayout so that the whole viewport
+  // will be filled (issue #16183)
+  AColor := AWinControl.Color;
+  if AColor = clDefault then
+    AColor := GetDefaultColor(AWinControl, dctBrush);
   Gtk2WidgetSet.SetWidgetColor({%H-}PGtkBin(AWinControl.Handle)^.child,
-                               clNone, AWinControl.Color,
+                               clNone, AColor,
                                [GTK_STATE_NORMAL, GTK_STATE_ACTIVE,
                                 GTK_STATE_PRELIGHT, GTK_STATE_SELECTED]);
 end;

lcl/widgetset/wsforms.pp

@@ -50,6 +50,7 @@ type
   TWSScrollingWinControl = class(TWSWinControl)
   published
     // procedure ScrollBy is moved to TWSWinControl.
+    class function GetDefaultColor(const AControl: TControl; const ADefaultColorType: TDefaultColorType): TColor; override;
   end;
 
   { TWSScrollBox }
@@ -139,6 +140,19 @@ type
 
 implementation
 
+{ TWSScrollingWinControl }
+
+class function TWSScrollingWinControl.GetDefaultColor(const AControl: TControl;
+  const ADefaultColorType: TDefaultColorType): TColor;
+const
+  DefColors: array[TDefaultColorType] of TColor = (
+ { dctBrush } clForm,
+ { dctFont  } clBtnText
+  );
+begin
+  Result := DefColors[ADefaultColorType];
+end;
+
 { TWSCustomForm }
 
 class procedure TWSCustomForm.CloseModal(const ACustomForm: TCustomForm);