Use customContextMenu for changing the display type

app/widget/slider/rationalslider.cpp

@@ -32,6 +32,7 @@ RationalSlider::RationalSlider(QWidget *parent) :
   connect(this, SIGNAL(ValueChanged(QVariant)), this, SLOT(ConvertValue(QVariant)));
   connect(this, &SliderBase::changeRationalDisplayType, this, &RationalSlider::changeDisplayType);
   connect(Core::instance(), &Core::TimecodeDisplayChanged, this, &RationalSlider::ChangeTimecodeDisplayType);
+  connect(SliderBase::label(), &SliderLabel::customContextMenuRequested, this, &RationalSlider::changeDisplayType);
 
   SetDisplayType(display_type_);
 

app/widget/slider/sliderbase.h

@@ -85,6 +85,8 @@ protected:
 
   void UpdateLabel(const QVariant& v);
 
+  QLabel* label() { return label_; }
+
   virtual double AdjustDragDistanceInternal(const double& start, const double& drag);
 
   virtual QString ValueToString(const QVariant &v) = 0;

app/widget/slider/sliderlabel.cpp

@@ -47,6 +47,9 @@ SliderLabel::SliderLabel(QWidget *parent) :
 
   // Allow users to tab to this widget
   setFocusPolicy(Qt::TabFocus);
+
+  // Add ccustom context menu
+  setContextMenuPolicy(Qt::CustomContextMenu);
 }
 
 void SliderLabel::mousePressEvent(QMouseEvent *e)
@@ -57,8 +60,6 @@ void SliderLabel::mousePressEvent(QMouseEvent *e)
     } else  {
       emit LabelPressed();
     }
-  } else if (e->button() == Qt::RightButton) {
-    emit ChangeSliderType();
   }
 }