prepare AxesPanel for same update mechanism as in AxisPanel

GUI/View/Setup/AxesPanel.cpp

@@ -195,8 +195,16 @@ AxesPanel::AxesPanel(DataSource* ds)
 
 AxesPanel::~AxesPanel() = default;
 
+Data2DItem* AxesPanel::dataItem()
+{
+    return m_data_source->currentData2DItem();
+}
+
+void AxesPanel::updatePanel() {}
+
 void AxesPanel::updateUIValues()
 {
-    for (const auto& updater : m_updaters)
-        updater();
+    if (m_data_source->currentData2DItem())
+        for (const auto& updater : m_updaters)
+            updater();
 }

GUI/View/Setup/AxesPanel.h

@@ -17,6 +17,7 @@
 
 #include <QWidget>
 
+class Data2DItem;
 class DataSource;
 
 //! Widget to edit properties of a Data2DItem.
@@ -27,6 +28,8 @@ public:
     ~AxesPanel();
 
 private:
+    Data2DItem* dataItem();
+    void updatePanel();
     void updateUIValues();
 
     QVector<std::function<void()>> m_updaters;

GUI/View/Setup/AxisPanel.cpp

@@ -161,7 +161,7 @@ void AxisPanel::updateItemCoords(DataItem* item)
 
 void AxisPanel::updateUIValues()
 {
-    if (m_data_source->currentData1DItem())
+    if (dataItem())
         for (const auto& updater : m_updaters)
             updater();
 }

GUI/View/Setup/AxisPanel.h

@@ -28,10 +28,9 @@ public:
     AxisPanel(DataSource*);
     ~AxisPanel();
 
+private:
     Data1DItem* dataItem();
     void updatePanel();
-
-private:
     void updateItemCoords(DataItem* item);
     void updateUIValues();