GroupBoxCollapser::installIntoGroupBox2 used for footprint

GUI/Model/Beam/SourceItems.h

@@ -59,8 +59,6 @@ public:
     void setFootprint(const IFootprint* footprint);
 
     bool expandFootprint = true;
-    bool isExpandFootprint() const { return expandFootprint; }
-    void setExpandFootprint(bool b) { expandFootprint = b; }
 
 protected:
     SourceItem();

GUI/View/Device/FootprintForm.cpp

@@ -37,10 +37,7 @@ FootprintForm::FootprintForm(QWidget* parent, SourceItem* item)
         });
     m_formLayout->addRow("Type:", typeCombo);
 
-    auto* collapser = GroupBoxCollapser::installIntoGroupBox(this);
-    collapser->setExpanded(item->isExpandFootprint());
-    connect(collapser, &GroupBoxCollapser::toggled, this,
-            [item](bool b) { item->setExpandFootprint(b); });
+    GroupBoxCollapser::installIntoGroupBox2(this, item->expandFootprint);
 
     updateFootprintWidgets();
 }