DtOsgEarthStreamedFeatureCallback.h

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/******************************************************************************
** Copyright (c) 2020 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once
#include <vrvOsgEarth/vrvOsgEarth.h>
#include <vrvOsg/DtOsgEarthFeatureDataBroker.h>
#include <vrvUtil/DtVirtualBaseClass.h>

namespace makVrv
{
   class DtOsgEarthStreamedFeatureManager;

   class DT_DLL_VRVOSGEARTH DtOsgEarthStreamedFeatureCallback
      : public DtOsgEarthFeatureDataBroker::Callback
   {
   protected:
      virtual ~DtOsgEarthStreamedFeatureCallback();

      // CTOR
      DtOsgEarthStreamedFeatureCallback(DtOsgEarthStreamedFeatureManager& featureMgr);

      friend class DtOsgEarthStreamedFeatureCallbackCreator;

   private:
      DtOsgEarthStreamedFeatureCallback(const DtOsgEarthStreamedFeatureCallback &other);
      DtOsgEarthStreamedFeatureCallback &operator=(const DtOsgEarthStreamedFeatureCallback &other);

   public: // DtOsgEarthFeatureDataBroker::Callback interface

      // Invoked by the broker when the layer is first loaded.
      virtual void onLayerLoaded(const osgEarth::MapNode* mapNode,
         osgEarth::Layer* layer);

      virtual void onDataPreMerge(const osgEarth::Map* map, const osgEarth::Layer* layer,
         osg::Node* data);

      // Invoked by the broker when new data arrives.
      virtual void onDataLoaded(const osgEarth::Map* map, const osgEarth::Layer* layer,
         const osg::Node* data);

      virtual float callbackOrder();

      virtual const std::string& instanceClassName() const;

   public:
      static const std::string& className();

   protected:
      static const std::string theClassName;

   protected:
      DtOsgEarthStreamedFeatureManager& myFeatureManager;
   };

   class DT_DLL_VRVOSGEARTH DtOsgEarthStreamedFeatureCallbackCreator : public DtVirtualBaseClass
   {

   public:
      DtOsgEarthStreamedFeatureCallbackCreator();

      virtual ~DtOsgEarthStreamedFeatureCallbackCreator();

   private:
      DtOsgEarthStreamedFeatureCallbackCreator(const DtOsgEarthStreamedFeatureCallbackCreator &other);
      DtOsgEarthStreamedFeatureCallbackCreator &operator=(const DtOsgEarthStreamedFeatureCallbackCreator &other);

   public:
      static DtOsgEarthStreamedFeatureCallbackCreator& instance(DtDe& de);

      static void registerInstance(DtDe& de,
         DtOsgEarthStreamedFeatureCallbackCreator* instance);

      virtual DtOsgEarthStreamedFeatureCallback* create(DtOsgEarthStreamedFeatureManager& featureMgr);

   };
}