implement functionality narrowing in InstrumentView

GUI/Views/InstrumentWidgets/InstrumentSelectorWidget.h

@@ -48,7 +48,7 @@ private:
     QMap<QString, int> mapOfNames();
     template <class Instrument> void newInstrument();
 
-private:
+public:
     QAction* m_action_new_gisas;
     QAction* m_action_new_offspecular;
     QAction* m_action_new_specular;

GUI/Views/InstrumentWidgets/InstrumentView.cpp

@@ -22,7 +22,7 @@
 #include <QBoxLayout>
 
 InstrumentView::InstrumentView(QWidget* parent, ProjectDocument* document)
-    : QWidget(parent), m_instrumentEditor(new InstrumentEditor)
+    : QWidget(parent), m_instrumentEditor(new InstrumentEditor), m_document(document)
 {
     auto horizontalLayout = new QHBoxLayout;
     m_instrumentSelector = new InstrumentSelectorWidget(document->instrumentModel(), this);
@@ -40,8 +40,13 @@ InstrumentView::InstrumentView(QWidget* parent, ProjectDocument* document)
     mainLayout->addLayout(horizontalLayout);
     setLayout(mainLayout);
 
+    updateFunctionalityNarrowing();
+
     connect(m_instrumentSelector, &InstrumentSelectorWidget::selectionChanged, this,
             &InstrumentView::onItemSelectionChanged);
+
+    connect(m_document, &ProjectDocument::modified, this,
+            &InstrumentView::updateFunctionalityNarrowing);
 }
 
 void InstrumentView::onItemSelectionChanged(SessionItem* instrumentItem)
@@ -53,3 +58,16 @@ void InstrumentView::showEvent(QShowEvent*)
 {
     m_instrumentSelector->updateSelection();
 }
+
+void InstrumentView::updateFunctionalityNarrowing()
+{
+    const auto f = m_document->functionalities();
+
+    m_instrumentSelector->m_action_new_gisas->setVisible(f.testFlag(ProjectDocument::Gisas));
+    m_instrumentSelector->m_action_new_offspecular->setVisible(
+        f.testFlag(ProjectDocument::OffSpecular));
+    m_instrumentSelector->m_action_new_specular->setVisible(f.testFlag(ProjectDocument::Specular));
+    m_instrumentSelector->m_action_new_depthprobe->setVisible(
+        f.testFlag(ProjectDocument::DepthProbe));
+    m_instrumentSelector->m_action_copy->setVisible(!m_document->singleInstrumentMode());
+}

GUI/Views/InstrumentWidgets/InstrumentView.h

@@ -37,9 +37,15 @@ private slots:
 protected:
     void showEvent(QShowEvent*);
 
+private:
+    //! Show/hide UI elements according to settings in current project
+    void updateFunctionalityNarrowing();
+
+
 private:
     InstrumentSelectorWidget* m_instrumentSelector;
     InstrumentEditor* m_instrumentEditor;
+    ProjectDocument* m_document;
 };
 
 #endif // BORNAGAIN_GUI_VIEWS_INSTRUMENTWIDGETS_INSTRUMENTVIEW_H