DtHeightMapSuperManager.h

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


#pragma once

#include <vrvOsg/vrvOsg.h>

#include <vrvUtil/DtVirtualBaseClass.h>

#include <osg/Camera>
#include <osg/observer_ptr>
#include <osg/ref_ptr>

namespace osg
{
   class Geode;
}


#include <map>

namespace makVrv
{
   // Forward declarations.
   class DtHeightMapDrawable;
   class DtHeightMapManager;
   class DtDe;

   class DT_DLL_VRVOSG DtHeightMapSuperManager : public DtVirtualBaseClass
   {
   protected:
      typedef std::map< osg::observer_ptr<osg::Camera>, DtHeightMapManager* > MapCamerasToHeightMapManagers;

   public:
      virtual ~DtHeightMapSuperManager();

   protected:
      DtHeightMapSuperManager(DtDe& de);

   private:
      DtHeightMapSuperManager() = delete;
      DtHeightMapSuperManager(const DtHeightMapSuperManager &other) = delete;
      DtHeightMapSuperManager &operator=(const DtHeightMapSuperManager &other) = delete;

   public:

      static DtHeightMapSuperManager& instance(DtDe& de);

      virtual void setHeightMapResolution(float metersPerTexel);

      virtual float heightMapResolution() const;

      virtual void deleteAllHeightMapManagers();

      virtual int numHeightMapManagers() const;

      virtual bool flushInvalidCameras();

      virtual DtHeightMapManager* getOrCreateHeightMapManager(osg::RenderInfo& renderInfo);

      virtual void addUser();

      virtual void removeUser();

   protected:

      virtual void disconnectAllHeightMapManagers(void);

   protected:

      DtDe& myDe;

      MapCamerasToHeightMapManagers myHeightMapManagerMap;

      float myHeightMapResolution;

      osg::ref_ptr<osg::Geode> myHeightMapGeode;
      osg::ref_ptr<makVrv::DtHeightMapDrawable> myHeightMapDrawable;

      int myUsers;
   };

}