DtOsgEarthStreamedFeatureManager.h

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/****************************************************************************** 
** Copyright (c) 2014 VT-MAK Technologies, Inc. 
** All rights reserved. 
******************************************************************************/ 


#pragma once

#include <vrvOsgEarth/vrvOsgEarth.h>

#include <vrvCore/DtDe.h>
#include <vrvCore/DtStreamedFeatureManager.h>

#include <vrvUtil/DtKeyedSignalConnectionManager.h>

#include <osg/NodeVisitor>

namespace osgEarth
{
   namespace Features
   {
      class CustomFeatureNode;
   }
   class Map;
   class ModelLayer;
}

namespace osg
{
   class Node;
}

namespace makVrv
{
   class DtTerrainPatchObject;

   class DT_DLL_VRVOSGEARTH DtOsgEarthStreamedFeatureManager 
      : public DtStreamedFeatureManager
   {
   public:

      virtual ~DtOsgEarthStreamedFeatureManager();

   protected: 

      friend class DtOsgEarthStreamedFeatureCallback;


      virtual void processNewFeatures( 
         osgEarth::Features::CustomFeatureNode* featureNode );

      virtual void slot_customFeatureNodeToBeDeleted( 
         osgEarth::Features::CustomFeatureNode* node );


      virtual void onDataLoaded(osgEarth::Map* map, osgEarth::ModelLayer* layer, 
         osg::Node* data);

   protected:
      friend class DtOsgEarthStreamedFeatureManagerCreator;

      // CTOR (protected, only created through creator function)
      DtOsgEarthStreamedFeatureManager( DtDe& de );

      // CTOR (unimplemented default CTOR)
      DtOsgEarthStreamedFeatureManager();

      virtual void slot_terrainPatchCreated(DtTerrainPatchObject& patch);

   protected:
      DtKeyedSignalConnectionManager<osgEarth::Features::CustomFeatureNode*> 
         myKeyedConnections;
   };

   class DT_DLL_VRVOSGEARTH DtOsgEarthStreamedFeatureManagerCreator 
      : public DtStreamedFeatureManagerCreator
   {
   public:
      DtOsgEarthStreamedFeatureManagerCreator()
         : DtStreamedFeatureManagerCreator()
      {
      }

      virtual ~DtOsgEarthStreamedFeatureManagerCreator()
      {
      }

      virtual DtStreamedFeatureManager* create( DtDe& de );
   };

   class DT_DLL_VRVOSGEARTH DtStreamedFeaturePageVisitor : public osg::NodeVisitor
   {
   public:
      typedef std::list<osgEarth::Features::CustomFeatureNode*> FoundFeatureNodeList;

      DtStreamedFeaturePageVisitor();

      virtual ~DtStreamedFeaturePageVisitor();

      const FoundFeatureNodeList& foundFeatureNodes();

   public: // osg::NodeVisitor overrides

      void apply(osg::Node& node);

   protected:

      // List of found CustomFeatureNodes
      FoundFeatureNodeList myFoundFeatureNodeList;
   };
}