terrainSourceChooser.h

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/*******************************************************************************
** Copyright (c) 2011 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/


#pragma once

#include <osg/NodeVisitor>
#include <list>
#include "vantageTerrainImplementation/vantageTerrainImplementationDefines.h"
#include "vantageTerrainImplementation/vantageTerrainImplementationCreator.h"

class DtTerrainSourcePager;
class DtVantageTerrainEngine;

class DT_DLL_vantageTerrainImplementation DtTerrainSourceChooser : public osg::NodeVisitor
{
public:
   DtTerrainSourceChooser(const std::list<DtTerrainChooserFunction>& fcnList, 
      DtVantageTerrainEngine* terrainEngine);
   virtual ~DtTerrainSourceChooser();

private:
   DtTerrainSourceChooser();

public:

   virtual void apply(osg::Node& node);

   virtual const std::list<DtTerrainSourcePager*>& instantiatedPagers() const;

protected:
   std::list<DtTerrainChooserFunction> myChooserFunctions;
   std::list<DtTerrainSourcePager*> myInstantiatedPagers;
   DtVantageTerrainEngine* myTerrainEngine;      
};