DtOceanExtractorVisitor.h

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/******************************************************************************
** Copyright (c) 2018 MAK Technologies, Inc.
** All rights reserved.
******************************************************************************/


#pragma once

#include <vrvOsg/vrvOsg.h>

#include <vrvOsg/DtTextureVisitor.h>

#include <osg/NodeVisitor>

#include <ostream>
#include <string>
#include <vector>

#include <boost/regex.hpp>
#include <boost/unordered_map.hpp>
#include <boost/unordered_set.hpp>

namespace osg
{
   class Geode;
   class Group;
   class Node;
   class LOD;
};

namespace makVrv
{
   class DtOceanExtractorVisitor : public osg::NodeVisitor
   {
   public:
      typedef std::vector<boost::regex> RegexVector;

      DtOceanExtractorVisitor( DtTextureVisitor::TextureMap& textureMap, 
         const std::string& rule, bool isRegEx );

      virtual ~DtOceanExtractorVisitor();
   
   public:
      virtual void apply(osg::Group& group);

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

      virtual bool nodesExtracted() const;

   protected:
      virtual bool extractStaticOcean(osg::Node& node);

      virtual bool checkTextures( const osg::Node& node );

      virtual bool makeNodeStaticOcean( osg::Node& node );

   protected:
      std::string mySearchForString;
      RegexVector mySearchForRegularExpressions;
      bool myExpressionIsRegEx;
      osg::Group* myStartGroup;
      DtTextureVisitor::TextureMap& myTextureMap;
      boost::unordered_set<int> myTexturesRemoved;
      boost::unordered_set<int> myTextureNonMatchCache;
      bool myNodesExtracted;
      std::vector<osg::ref_ptr<osg::Node> > myNodesToRemove;
   };

}