DtOsgEarthMemoryFeatureSource.h

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

#pragma once

#include <vrvOsg/vrvOsg.h>

#include <vrvCore/DtVirtualBaseClassCreator.h>

#include <osgEarth/FeatureSource>
#include <osgEarth/Feature>
#include <osgEarth/Threading>

namespace osgEarth
{
   class LandCoverDictionary;
}

namespace makVrv
{

   class DtOsgEarthMemoryFeatureSource;

   typedef DtVirtualBaseClassCreator<DtOsgEarthMemoryFeatureSource> DtOsgEarthMemoryFeatureSourceCreator;

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


   class DT_DLL_VRVOSG DtOsgEarthMemoryFeatureSource : public osgEarth::FeatureSource
   {
   public:
   
      ~DtOsgEarthMemoryFeatureSource();

   protected:
      DtOsgEarthMemoryFeatureSource(DtDe& de);

      friend DtOsgEarthMemoryFeatureSourceCreator;

   public:

      DtOsgEarthMemoryFeatureSource() = delete;
      DtOsgEarthMemoryFeatureSource(const DtOsgEarthMemoryFeatureSource &other) = delete;
      DtOsgEarthMemoryFeatureSource &operator=(const DtOsgEarthMemoryFeatureSource &other) = delete;


   public: // FeatureSource API

      virtual osgEarth::Status openImplementation() override;

      virtual osgEarth::FeatureCursor* createFeatureCursorImplementation(
         const osgEarth::Query& query,
         osgEarth::ProgressCallback* progress) override;

      virtual bool insertFeature(osgEarth::Feature* feature) override;

      virtual bool deleteFeature(osgEarth::FeatureID fid) override;

      virtual bool deleteAllFeatures();

      virtual bool isWritable() const override;

   protected:
      osgEarth::Threading::Mutex myMutex;
      osgEarth::FeatureList myFeatures;
      std::atomic_int myFidgen;
      DtDe& myDe;
   };
}