can visually see connections between parameters in the node view

app/node/node.cpp

@@ -60,3 +60,13 @@ QList<NodeParam *> Node::parameters()
 {
   return static_qobjectlist_cast<NodeParam>(children());
 }
+
+int Node::ParameterCount()
+{
+  return children().size();
+}
+
+int Node::IndexOfParameter(NodeParam *param)
+{
+  return children().indexOf(param);
+}

app/node/node.h

@@ -53,6 +53,17 @@ public:
    */
   QList<NodeParam*> parameters();
 
+  /**
+   * @brief Return the current number of parameters
+   */
+  int ParameterCount();
+
+  /**
+   * @brief Return the index of a parameter
+   * @return Parameter index or -1 if this parameter is not part of this Node
+   */
+  int IndexOfParameter(NodeParam* param);
+
 public slots:
   virtual void Process(const rational& time) = 0;
 };

app/node/param.cpp

@@ -45,6 +45,11 @@ Node *NodeParam::parent()
   return static_cast<Node*>(QObject::parent());
 }
 
+int NodeParam::index()
+{
+  return parent()->IndexOfParameter(this);
+}
+
 const QVector<NodeEdgePtr> &NodeParam::edges()
 {
   return edges_;

app/node/param.h

@@ -62,6 +62,8 @@ public:
 
   Node* parent();
 
+  int index();
+
   const QVector<NodeEdgePtr>& edges();
 
   static bool AreDataTypesCompatible(const DataType& output_type, const DataType& input_type);