DtIndirectGeometryCallback.h

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/******************************************************************************
** Copyright (c) 2018 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once

#include <vrvOsgEarth/vrvOsgEarth.h>

#include <vrvOsg/DtOsgEarthFeatureDataBroker.h>

#include <vrvUtil/DtVirtualBaseClass.h>

namespace makVrv
{
   class DtIndirectGeometryManager;

   class DT_DLL_VRVOSGEARTH DtIndirectGeometryCallback
      : public DtOsgEarthFeatureDataBroker::Callback
   {
      friend class DtIndirectGeometryCallbackCreator;
   protected:
      DtIndirectGeometryCallback(DtDe& de, DtIndirectGeometryManager& manager);
   public:
      virtual ~DtIndirectGeometryCallback();

      virtual void onLayerLoaded(const osgEarth::MapNode* mapNode, const osgEarth::ModelLayer* layer);

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

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

      virtual void onDataUnloaded(const osgEarth::Map* map, const osgEarth::ModelLayer* layer, const osg::Node* oldData);
   public:
      static const char* className();
   protected:
      static const char* myClassName;
      DtDe& myDe;
      DtIndirectGeometryManager& myManager;
   private:
      DtIndirectGeometryCallback();
   };

   class DT_DLL_VRVOSGEARTH DtIndirectGeometryCallbackCreator : public DtVirtualBaseClass
   {

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

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

      virtual DtIndirectGeometryCallback* create(DtDe& de, DtIndirectGeometryManager& manager);
   };
}