DtIndirectGeometryLayerManager.h

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


#pragma once

#include <vrvOsgEarth/vrvOsgEarth.h>

#include <vrvUtil/DtVirtualBaseClass.h>

namespace osg
{
   class Node;
}
namespace osgEarth
{
   class Layer;
}

namespace makVrv
{
   class DtIndirectGeometryRegistrar;
   class DtIndirectGeometry;
   class DtIndirectFeatureGeomHandler;
   class DtIndirectBuildingsHandler;
   struct DtIndirectFadeParameters;

   class DT_DLL_VRVOSGEARTH DtIndirectGeometryLayerManager
   {
   public:

      virtual ~DtIndirectGeometryLayerManager();

   protected:
      DtIndirectGeometryLayerManager(DtDe& de, const osgEarth::Layer& layer,
         const DtIndirectFadeParameters& fadeParameters, bool dynamicTerrainInstallerActive);

      friend class DtIndirectGeometryLayerManagerCreator;

   private:
      DtIndirectGeometryLayerManager();

      DtIndirectGeometryLayerManager(const DtIndirectGeometryLayerManager &other);

      DtIndirectGeometryLayerManager &operator=(const DtIndirectGeometryLayerManager &other);

   public:

      virtual void onDataPremerge(osg::Node* newData);

      virtual void onDataLoaded(const osg::Node* newData);

      virtual void onDataUnloaded(const osg::Node* oldData);

   protected:
      DtIndirectFeatureGeomHandler* myIndirectFeatureGeomHandler;

      DtIndirectBuildingsHandler* myIndirectBuildingsHandler;

      DtDe& myDe;

      const osgEarth::Layer& myLayer;

      bool myDynamicTerrainInstallerActive;

   };

   class DT_DLL_VRVOSGEARTH DtIndirectGeometryLayerManagerCreator : public DtVirtualBaseClass
   {
   public:
      DtIndirectGeometryLayerManagerCreator(DtDe &de);

      virtual ~DtIndirectGeometryLayerManagerCreator();

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


   public:
      virtual DtIndirectGeometryLayerManager* create(const osgEarth::Layer& layer,
         const DtIndirectFadeParameters& fadeParameters, bool dynamicTerrainInstallerActive) const;

      static DtIndirectGeometryLayerManagerCreator& instance(DtDe& de);

      static const std::string& theClassName();

   protected:
      DtDe& myDe;
   };
}