sequence encapsulation

nodes/nodegraph.cpp

@@ -8,6 +8,12 @@ NodeGraph::NodeGraph() :
 
 }
 
+void NodeGraph::AddNode(NodePtr node)
+{
+  nodes_.append(node);
+  emit NodeGraphChanged();
+}
+
 Node *NodeGraph::OutputNode()
 {
   return output_node_.get();

nodes/nodegraph.h

@@ -2,11 +2,13 @@
 #define NODEGRAPH_H
 
 #include <QVector>
+#include <QObject>
 
 #include "nodes/node.h"
 
-class NodeGraph
+class NodeGraph : public QObject
 {
+  Q_OBJECT
 public:
   NodeGraph();
 
@@ -48,6 +50,9 @@ public:
    */
   Node* OutputNode();
 
+signals:
+  void NodeGraphChanged();
+
 private:  
   NodePtr output_node_;
 

nodes/oldeffectnode.cpp

@@ -811,10 +811,10 @@ void OldEffectNode::gizmo_world_to_screen(const QMatrix4x4& matrix, const QMatri
                                                         projection,
                                                         QRect(0,
                                                               0,
-                                                              parent_clip->track()->sequence()->width,
-                                                              parent_clip->track()->sequence()->height));
+                                                              parent_clip->track()->sequence()->width(),
+                                                              parent_clip->track()->sequence()->height()));
 
-      g->screen_pos[j] = QPoint(screen_pos.x(), parent_clip->track()->sequence()->height-screen_pos.y());
+      g->screen_pos[j] = QPoint(screen_pos.x(), parent_clip->track()->sequence()->height() - screen_pos.y());
 
     }
   }