mbColorLib: Fix mouse wheel events of TmbTrackbar descendents being shown in Object Inspector as not assigned.

git-svn-id: https://svn.code.sf.net/p/lazarus-ccr/svn@5546 8e941d3f-bd1b-0410-a28a-d453659cc2b4

components/mbColorLib/HSLRingPicker.pas

@@ -55,14 +55,14 @@ type
     procedure SetSLCursor(c: TCursor);
   protected
     procedure CreateWnd; override;
-    procedure Paint; override;
+    procedure DoChange;
     procedure DoMouseMove(Sender: TObject; Shift: TShiftState; X, Y: Integer);
     function GetColorUnderCursor: TColor; override;
-    procedure RingPickerChange(Sender: TObject);
-    procedure SLPickerChange(Sender: TObject);
-    procedure DoChange;
+    procedure Paint; override;
     procedure Resize; override;
+    procedure RingPickerChange(Sender: TObject);
     procedure SetFocus; override;
+    procedure SLPickerChange(Sender: TObject);
     (*
     {$IFDEF DELPHI}
     procedure WMSetFocus(var Message: TWMSetFocus); message WM_SETFOCUS;

components/mbColorLib/examples/fulldemo/main.lfm

@@ -43,9 +43,9 @@ object Form1: TForm1
     Height = 384
     Top = 6
     Width = 403
-    ActivePage = TabSheet5
+    ActivePage = TabSheet1
     Anchors = [akTop, akLeft, akRight, akBottom]
-    TabIndex = 4
+    TabIndex = 0
     TabOrder = 0
     OnChange = PageControl1Change
     OnMouseMove = PageControl1MouseMove
@@ -721,8 +721,8 @@ object Form1: TForm1
         TabOrder = 2
         Hue = 0
         Saturation = 0
-        Luminance = 240
-        SelectedColor = 6579300
+        Luminance = 94
+        SelectedColor = 6184542
       end
       object VColorPicker1: TVColorPicker
         Left = 34
@@ -844,7 +844,7 @@ object Form1: TForm1
         Height = 147
         Top = 144
         Width = 161
-        SelectedColor = 2763306
+        SelectedColor = 6579300
         HintFormat = 'H: %h S: %s L: %l'#13'Hex: %hex'
         TabOrder = 1
         OnMouseMove = SLColorPicker1MouseMove
@@ -920,8 +920,8 @@ object Form1: TForm1
         NewArrowStyle = True
         TabOrder = 3
         Cyan = 0
-        Black = 255
-        SelectedColor = clBlack
+        Black = 1
+        SelectedColor = 16711422
       end
       object RColorPicker1: TRColorPicker
         Left = 150
@@ -932,6 +932,8 @@ object Form1: TForm1
         ArrowPlacement = spBefore
         NewArrowStyle = True
         TabOrder = 4
+        Green = 122
+        Blue = 122
         SelectedColor = 8026879
       end
       object GColorPicker1: TGColorPicker
@@ -943,6 +945,8 @@ object Form1: TForm1
         ArrowPlacement = spBoth
         NewArrowStyle = True
         TabOrder = 5
+        Red = 122
+        Blue = 122
         SelectedColor = 8060794
       end
       object BColorPicker1: TBColorPicker
@@ -953,6 +957,8 @@ object Form1: TForm1
         HintFormat = 'Blue: %b (selected)'
         SelectionIndicator = siRect
         TabOrder = 6
+        Red = 122
+        Green = 122
         SelectedColor = 16743034
       end
       object KColorPicker2: TKColorPicker
@@ -968,8 +974,8 @@ object Form1: TForm1
         NewArrowStyle = True
         TabOrder = 7
         Cyan = 0
-        Black = 255
-        SelectedColor = clBlack
+        Black = 1
+        SelectedColor = 16711422
       end
       object MColorPicker2: TMColorPicker
         Left = 272
@@ -1253,7 +1259,7 @@ object Form1: TForm1
     Height = 19
     Top = 371
     Width = 62
-    Anchors = [akRight, akBottom]
+    Anchors = [akTop, akRight]
     Caption = 'Enabled'
     Checked = True
     OnChange = CbEnabledChange

components/mbColorLib/mbTrackBarPicker.pas

@@ -80,6 +80,8 @@ type
     FLimit: integer;
     FBack: TBitmap;
     procedure CreateGradient; override;
+    function DoMouseWheel(Shift: TShiftState; WheelDelta: Integer;
+      MousePos: TPoint): Boolean; override;
     procedure Paint; override;
 //    procedure PaintParentBack;
     procedure DrawFrames; dynamic;
@@ -97,8 +99,10 @@ type
     procedure MouseMove(Shift: TShiftState; X, Y: Integer); override;
 //    function MouseOnPicker(X, Y: Integer): Boolean;
     procedure MouseUp(Button: TMouseButton; Shift: TShiftState; X, Y: Integer); override;
+    {
     procedure WheelUp(Sender: TObject; Shift: TShiftState; MousePos: TPoint; var Handled: Boolean);
     procedure WheelDown(Sender: TObject; Shift: TShiftState; MousePos: TPoint; var Handled: Boolean);
+    }
     {$IFDEF DELPHI}
 //    procedure CNKeyDown(var Message: TWMKeyDown); message CN_KEYDOWN;
     procedure CMGotFocus(var Message: TCMGotFocus); message CM_ENTER;
@@ -218,8 +222,8 @@ begin
   FIncrement := 1;
   FArrowPos := GetArrowPos;
   FHintFormat := '';
-  OnMouseWheelUp := WheelUp;
-  OnMouseWheelDown := WheelDown;
+//  OnMouseWheelUp := WheelUp;
+//  OnMouseWheelDown := WheelDown;
   FManual := false;
   FChange := true;
   FLayout := lyHorizontal;
@@ -917,6 +921,25 @@ begin
   Invalidate;
 end;
 
+function TmbTrackbarPicker.DoMouseWheel(Shift: TShiftState; WheelDelta: Integer;
+  MousePos: TPoint): Boolean;
+begin
+  Result := inherited DoMouseWheel(Shift, WheelDelta, MousePos);
+  if not Result then
+  begin
+    Result := True;
+    FChange := false;
+    if WheelDelta > 0 then
+      Execute(TBA_WheelUp)
+    else
+      Execute(TBA_WheelDown);
+    FManual := true;
+    FChange := true;
+    if Assigned(FOnChange) then FOnChange(Self);
+  end;
+end;
+
+                      (*
 procedure TmbTrackBarPicker.WheelUp(Sender: TObject; Shift: TShiftState;
   MousePos: TPoint; var Handled: Boolean);
 begin
@@ -936,7 +959,8 @@ begin
   FManual := true;
   FChange := true;
   if Assigned(FOnChange) then FOnChange(Self);
-end;
+end;                    *)
+
 
 { IMPORTANT: If pickers are created at designtime the layout must be set before
   defining the picker width and height because changing the layout will flip the