nodes can now be connected through the node editor

nodes/node.cpp

@@ -148,6 +148,11 @@ void Node::AddRow(EffectRow *row)
   rows.append(row);
 }
 
+int Node::IndexOfRow(EffectRow *row)
+{
+  return rows.indexOf(row);
+}
+
 void Node::copy_field_keyframes(NodePtr e) {
   for (int i=0;i<rows.size();i++) {
     EffectRow* row = rows.at(i);
@@ -191,6 +196,17 @@ int Node::gizmo_count() {
   return gizmos.size();
 }
 
+QVector<NodeEdge *> Node::GetAllEdges()
+{
+  QVector<NodeEdge*> edges;
+
+  for (int i=0;i<row_count();i++) {
+    edges.append(row(i)->edges());
+  }
+
+  return edges;
+}
+
 void Node::refresh() {}
 
 void Node::FieldChanged() {
@@ -310,6 +326,11 @@ void Node::SetExpanded(bool e)
   expanded_ = e;
 }
 
+void Node::SetPos(const QPointF &pos)
+{
+  pos_ = pos;
+}
+
 void Node::SetEnabled(bool b) {
   enabled_ = b;
   emit EnabledChanged(b);
@@ -615,6 +636,11 @@ void Node::setIterations(int i) {
   iterations = i;
 }
 
+const QPointF &Node::pos()
+{
+  return pos_;
+}
+
 void Node::process_image(double, uint8_t *, uint8_t *, int){}
 
 NodePtr Node::copy(Clip *c) {