separated effect from UI

project/effectfields/doublefield.cpp

@@ -54,6 +54,11 @@ QString DoubleField::ConvertValueToString(const QVariant &v)
   return QString::number(v.toDouble());
 }
 
+//QWidget *DoubleField::CreateWidget()
+//{
+
+//}
+
 void DoubleField::ValueHasBeenSet()
 {
   value_set_ = true;

project/effectfields/doublefield.h

@@ -34,6 +34,8 @@ public:
 
   virtual QVariant ConvertStringToValue(const QString& s);
   virtual QString ConvertValueToString(const QVariant& v);
+
+  //virtual QWidget* CreateWidget() override;
 private:
   double min_;
   double max_;

project/effectfields/effectfield.cpp

@@ -151,6 +151,11 @@ QString EffectField::ConvertValueToString(const QVariant &v)
   return v.toString();
 }
 
+QWidget *EffectField::CreateWidget()
+{
+  return new QLabel(tr("(Invalid field)"));
+}
+
 QVariant EffectField::GetValueAt(double timecode)
 {
   Q_ASSERT(!keyframes.isEmpty());

project/effectfields/effectfield.h

@@ -61,6 +61,8 @@ public:
   virtual QVariant ConvertStringToValue(const QString& s);
   virtual QString ConvertValueToString(const QVariant& v);
 
+  virtual QWidget* CreateWidget();
+
   double GetValidKeyframeHandlePosition(int key, bool post);
 
   bool IsEnabled();