Provide a const BasicGraphicsScene::nodeGeometry method

Author: Malcohol

include/QtNodes/internal/BasicGraphicsScene.hpp

@@ -46,6 +46,8 @@ class NODE_EDITOR_PUBLIC BasicGraphicsScene : public QGraphicsScene
 
     AbstractGraphModel &graphModel();
 
+    AbstractNodeGeometry const &nodeGeometry() const;
+
     AbstractNodeGeometry &nodeGeometry();
 
     AbstractNodePainter &nodePainter();

src/BasicGraphicsScene.cpp

@@ -93,6 +93,11 @@ AbstractGraphModel &BasicGraphicsScene::graphModel()
     return _graphModel;
 }
 
+AbstractNodeGeometry const &BasicGraphicsScene::nodeGeometry() const
+{
+    return *_nodeGeometry;
+}
+
 AbstractNodeGeometry &BasicGraphicsScene::nodeGeometry()
 {
     return *_nodeGeometry;