sliders: make certain set functions slots

app/widget/slider/rationalslider.h

@@ -54,11 +54,6 @@ public:
    */
   rational GetValue();
 
-  /**
-   * @brief Sets the sliders value
-   */
-  void SetValue(const rational& d);
-
   /**
    * @brief Sets the sliders default value
    */
@@ -74,11 +69,6 @@ public:
    */
   void SetMaximum(const rational& d);
 
-  /**
-   * @brief Sets the sliders timebase which is also the minimum increment of the slider
-   */
-  void SetTimebase(const rational& timebase);
-
   /**
    * @brief Sets the display type of the slider
    */
@@ -99,6 +89,17 @@ public:
    */
   void DisableDisplayType(DisplayType type);
 
+public slots:
+  /**
+   * @brief Sets the sliders timebase which is also the minimum increment of the slider
+   */
+  void SetTimebase(const rational& timebase);
+
+  /**
+   * @brief Sets the sliders value
+   */
+  void SetValue(const rational& d);
+
 protected:
   virtual QString ValueToString(const QVariant& v) const override;
 

app/widget/slider/timeslider.h

@@ -32,6 +32,7 @@ class TimeSlider : public IntegerSlider
 public:
   TimeSlider(QWidget* parent = nullptr);
 
+public slots:
   void SetTimebase(const rational& timebase);
 
 protected: