DtOsgEarthLayerVisibilityManager.h

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/******************************************************************************
** Copyright (c) 2019 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once

#include <vrvOsgEarth/vrvOsgEarth.h>

#include <vrvUtil/DtVirtualBaseClass.h>
#include <vrvUtil/DtSignalConnectionManager.h>

#include <osgEarth/VisibleLayer>

#include <osg/observer_ptr>

#include <map>

namespace makVrv
{
   class DtTerrainPatchObject;

   class DT_DLL_VRVOSGEARTH DtOsgEarthLayerVisibilityManager : public DtVirtualBaseClass
   {
   public:

      virtual ~DtOsgEarthLayerVisibilityManager();

   protected:
      DtOsgEarthLayerVisibilityManager(DtDe& de);

   private:
      DtOsgEarthLayerVisibilityManager();

      DtOsgEarthLayerVisibilityManager(const DtOsgEarthLayerVisibilityManager &other);

      DtOsgEarthLayerVisibilityManager &operator=(const DtOsgEarthLayerVisibilityManager &other);

   public:

      virtual void slot_osgEarthMapNodeFound(DtTerrainPatchObject& tpo);

      virtual void slot_postInit();
      
      virtual void updateLayerVisibleState();

   public:

      static DtOsgEarthLayerVisibilityManager& instance(DtDe& de);

      static const std::string& theClassName();

   protected:

      DtDe& myDe;

      typedef osg::observer_ptr<osgEarth::VisibleLayer> VisibleLayerObs;
      typedef std::map<VisibleLayerObs, osg::Vec2i> LayerDateMap;
      LayerDateMap myDateSpecificLayers;

      DtSignalConnectionManager myConnections;

      vrvSignalsLib::connection myPostInitializeConnection;
   };
}