add diffDataItem to JobItem

GUI/Model/Job/JobItem.cpp

@@ -59,6 +59,7 @@ JobItem::JobItem()
     addProperty(P_PRESENTATION_TYPE, QVariant::Type::Invalid);
 
     registerTag(T_OUTPUT, 1, 1, {IntensityDataItem::M_TYPE, SpecularDataItem::M_TYPE});
+    registerTag(T_DIFF, 1, 1, {IntensityDataItem::M_TYPE, SpecularDataItem::M_TYPE});
     registerTag(T_REALDATA, 1, 1, {RealDataItem::M_TYPE});
     registerTag(T_DATAVIEW, 1, 1, {Data1DViewItem::M_TYPE});
 
@@ -100,7 +101,7 @@ IntensityDataItem* JobItem::intensityDataItem()
 
 DataItem* JobItem::dataItem()
 {
-    return dynamic_cast<DataItem*>(getItem(T_OUTPUT));
+    return dynamic_cast<DataItem*>(intensityDataItem());
 }
 
 JobStatus JobItem::getStatus() const
@@ -302,14 +303,14 @@ RealDataItem* JobItem::createRealDataItem()
     return model()->insertItem<RealDataItem>(this, -1, T_REALDATA);
 }
 
-Data1DViewItem* JobItem::dataItemView()
+DataItem* JobItem::diffDataItem()
 {
-    return dynamic_cast<Data1DViewItem*>(getItem(JobItem::T_DATAVIEW));
+    return dynamic_cast<DataItem*>(getItem(T_DIFF));
 }
 
-void JobItem::addDataViewItem(Data1DViewItem* data_view)
+Data1DViewItem* JobItem::dataItemView()
 {
-    insertChild(-1, data_view, T_DATAVIEW);
+    return dynamic_cast<Data1DViewItem*>(getItem(JobItem::T_DATAVIEW));
 }
 
 Data1DViewItem* JobItem::createDataViewItem()

GUI/Model/Job/JobItem.h

@@ -54,6 +54,7 @@ private:
     static constexpr auto P_PRESENTATION_TYPE{"Presentation type"};
     static constexpr auto T_MATERIAL_CONTAINER{"Material container tag"};
     static constexpr auto T_OUTPUT{"Output tag"};
+    static constexpr auto T_DIFF{"Diff tag"};
     static constexpr auto T_REALDATA{"Real Data tag"};
     static constexpr auto T_DATAVIEW{"Data View tag"};
     static constexpr auto T_FIT_SUITE{"Fit suite tag"};
@@ -127,8 +128,8 @@ public:
     RealDataItem* copyRealDataIntoJob(const RealDataItem* real_data);
     RealDataItem* createRealDataItem();
 
+    DataItem* diffDataItem();
     Data1DViewItem* dataItemView();
-    void addDataViewItem(Data1DViewItem* data_view);
     Data1DViewItem* createDataViewItem();
 
     QString sampleName() const;
@@ -172,6 +173,7 @@ T* JobItem::setDataType()
 {
     static_assert(std::is_base_of<DataItem, T>::value, "Class must be derived from DataItem");
 
+    model()->insertItem<T>(this, -1, T_DIFF);
     return model()->insertItem<T>(this, -1, T_OUTPUT);
 }