make API more flexible

Author: Yury Rakhuba

include/nodes/internal/ConnectionGraphicsObject.hpp

@@ -3,6 +3,7 @@
 #include <QtCore/QUuid>
 
 #include <QtWidgets/QGraphicsObject>
+#include "Export.hpp"
 
 class QGraphicsSceneMouseEvent;
 
@@ -15,7 +16,7 @@ class ConnectionGeometry;
 class Node;
 
 /// Graphic Object for connection. Adds itself to scene
-class ConnectionGraphicsObject
+class NODE_EDITOR_PUBLIC ConnectionGraphicsObject
   : public QGraphicsObject
 {
   Q_OBJECT

include/nodes/internal/FlowView.hpp

@@ -29,11 +29,11 @@ class NODE_EDITOR_PUBLIC FlowView
 
 public Q_SLOTS:
 
-  void scaleUp();
+  virtual void scaleUp();
 
-  void scaleDown();
+  virtual void scaleDown();
 
-  void deleteSelectedNodes();
+  virtual void deleteSelectedNodes();
 
 protected:
 
@@ -55,7 +55,7 @@ public Q_SLOTS:
 
 protected:
 
-  FlowScene * scene();
+    FlowScene * scene();
 
 private:
 

include/nodes/internal/NodeGraphicsObject.hpp

@@ -7,6 +7,7 @@
 
 #include "NodeGeometry.hpp"
 #include "NodeState.hpp"
+#include "Export.hpp"
 
 class QGraphicsProxyWidget;
 
@@ -18,7 +19,7 @@ class FlowItemEntry;
 
 /// Class reacts on GUI events, mouse clicks and
 /// forwards painting operation.
-class NodeGraphicsObject : public QGraphicsObject
+class NODE_EDITOR_PUBLIC NodeGraphicsObject : public QGraphicsObject
 {
   Q_OBJECT