DtStreamingSpeedTreeFeatureCallback.h

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/******************************************************************************
** Copyright (c) 2021 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once

#include <vrvSt/vrvSt.h>

#include <vrvOsg/DtOsgEarthFeatureDataBroker.h>

#include <vrvCore/DtVirtualBaseClassCreator.h>

#include <osg/NodeCallback>
#include <osg/ref_ptr>
#include <osg/Node>

#include <osgEarth/MapNode>
#include <vector>

namespace makVrv
{
   class DtOsgTerrainPatchObject;

   class DtStreamingSpeedTreeFeatureCallback;

   typedef DtVirtualBaseClassCreator<DtStreamingSpeedTreeFeatureCallback, DtOsgTerrainPatchObject&, DtStreamingSpeedTreeForestManager&> DtStreamingSpeedTreeFeatureCallbackCreator;

   template <>
   inline const char* creatorTypeName<DtStreamingSpeedTreeFeatureCallback>(void) { return "DtStreamingSpeedTreeFeatureCallbackCreator"; }

   class DT_DLL_VRVST DtStreamingSpeedTreeVisibilityCallback
      : public osgEarth::VisibleLayerCallback
   {
   public:
      DtStreamingSpeedTreeVisibilityCallback(DtOsgTerrainPatchObject& patch, DtStreamingSpeedTreeForestManager& forestManager);

      virtual void onVisibleChanged(osgEarth::VisibleLayer* layer) override;

   protected:
      DtStreamingSpeedTreeForestManager& myForestManager;
      DtOsgTerrainPatchObject& myPatch;
   };

   class DT_DLL_VRVST DtStreamingSpeedTreeFeatureCallback
      : public DtOsgEarthFeatureDataBroker::Callback
   {
   protected:

      friend DtStreamingSpeedTreeFeatureCallbackCreator;
      
      DtStreamingSpeedTreeFeatureCallback(DtDe& de, DtOsgTerrainPatchObject& patch,
         DtStreamingSpeedTreeForestManager& myForestManager);

      virtual ~DtStreamingSpeedTreeFeatureCallback();

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

   public:
      // callbacks
      virtual void onLayerLoaded(const osgEarth::MapNode* mapNode,
         osgEarth::Layer* layer) override;

      virtual void onDataPreMerge(const osgEarth::Layer* layer,
         osg::Node* newNode) override;

      virtual void onDataLoaded(const osgEarth::Layer* layer,
         const osg::Node* data) override;
         
      virtual const std::string& instanceClassName() const override;

   public:
      //Get the class name for this class "speedTreeManager" in this case
      static const std::string& className();

   protected:
      static const std::string theClassName;

   protected:
      DtStreamingSpeedTreeForestManager& myForestManager;
      DtOsgTerrainPatchObject & myPatch;
      DtDe& myDe;
   };
}