started parameter editor

app/panel/node/node.h

@@ -38,6 +38,12 @@ public:
 protected:
   virtual void changeEvent(QEvent* e) override;
 
+signals:
+  /**
+   * @brief Wrapper for NodeView::SelectionChanged()
+   */
+  void SelectionChanged(QList<Node*> selected_nodes);
+
 private:
   void Retranslate();