netanim: Add helper function to update the size of a node

This function allows passing a pointer to update the size of a node,
like it is already available for updating the color or description of a
node.

src/netanim/model/animation-interface.cc

@@ -376,6 +376,12 @@ AnimationInterface::SetBackgroundImage(std::string fileName,
     WriteXmlUpdateBackground(fileName, x, y, scaleX, scaleY, opacity);
 }
 
+void
+AnimationInterface::UpdateNodeSize(Ptr<Node> n, double width, double height)
+{
+    UpdateNodeSize(n->GetId(), width, height);
+}
+
 void
 AnimationInterface::UpdateNodeSize(uint32_t nodeId, double width, double height)
 {

src/netanim/model/animation-interface.h

@@ -284,6 +284,15 @@ class AnimationInterface
      */
     void UpdateNodeImage(uint32_t nodeId, uint32_t resourceId);
 
+    /**
+     * \brief Helper function to update the size of a node
+     * \param n Ptr to the node
+     * \param width Width of the node
+     * \param height Height of the node
+     *
+     */
+    void UpdateNodeSize(Ptr<Node> n, double width, double height);
+
     /**
      * \brief Helper function to update the size of a node
      * \param nodeId Id of the node