connected effect UI to enabled setting

effects/effect.h

@@ -154,7 +154,6 @@ public:
   int gizmo_count();
 
   bool IsEnabled();
-  void SetEnabled(bool b);
 
   virtual void refresh();
 
@@ -214,6 +213,7 @@ public:
   static const EffectMeta* GetInternalMeta(int internal_id, int type);
 public slots:
   void FieldChanged();
+  void SetEnabled(bool b);
 signals:
   void EnabledChanged(bool);
 private slots:

effects/fields/doublefield.cpp

@@ -102,11 +102,12 @@ void DoubleField::UpdateFromWidget(double d)
   }
 
   SetValueAt(Now(), d);
-  GetParentRow()->SetKeyframeOnAllFields(nullptr);
 
   if (!ls->IsDragging() && kdc_ != nullptr) {
     kdc_->SetNewKeyframes();
+
     olive::UndoStack.push(kdc_);
+
     kdc_ = nullptr;
   }
 }