Implemented perliminary multi-threading support in osgViewer::Viewer

include/osgViewer/View

@@ -18,6 +18,8 @@
 #include <osgGA/MatrixManipulator>
 #include <osgViewer/Scene>
 
+#include <osgUtil/SceneView>
+
 namespace osgViewer {
 
 /** View holds a single view on a scene, this view may be composed of one or more slave cameras.*/
@@ -64,6 +66,9 @@ class OSGVIEWER_EXPORT View : public osg::View
         osg::ref_ptr<osgGA::MatrixManipulator>  _cameraManipulator;
         EventHandlers                           _eventHandlers;
     
+        typedef std::map<osg::ref_ptr<osg::Camera>, osg::ref_ptr<osgUtil::SceneView> > CameraSceneViewMap;
+        CameraSceneViewMap _cameraSceneViewMap;
+
 };
 
 }