sequence is now a node graph

nodes/node.cpp

@@ -1,6 +1,29 @@
 #include "node.h"
 
-Node::Node(NodeGraph *graph)
-{
+#include "nodegraph.h"
 
+Node::Node(NodeGraph *graph) :
+  QObject(graph)
+{
+}
+
+void Node::AddParameter(NodeIO *param)
+{
+  param->setParent(this);
+  parameters_.append(param);
+}
+
+int Node::IndexOfParameter(NodeIO *param)
+{
+  return parameters_.indexOf(param);
+}
+
+NodeIO *Node::Parameter(int i)
+{
+  return parameters_.at(i);
+}
+
+int Node::ParameterCount()
+{
+  return parameters_.size();
 }