DtModelInstanceFactory.h

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/****************************************************************************** 
** Copyright (c) 2010 MAK Technologies, Inc. 
** All rights reserved. 
******************************************************************************/ 
/****************************************************************************** 
** $RCSfile: DtModelInstanceFactory.h,v $ $Revision: 1.11 $ $State: Exp $ 
******************************************************************************/ 
 
 
#ifndef DtModelInstanceFactory_H_ 
#define DtModelInstanceFactory_H_ 
 
#include <vrvCore/vrvCore.h> 
#include <list>
#include <string>
#include <map>
#include <vrvUtil/DtVirtualBaseClass.h>
 
namespace makVrv 
{ 
   class DtDe;
   class DtModelDefinition;
   class DtModelInstance;
   class DtModelInstanceCreator;

   class DT_DLL_VRVCORE DtModelInstanceFactory : public DtVirtualBaseClass
   {

   public:
      typedef std::list<std::string> CreatorClassList;

      static DtModelInstanceFactory& instance(DtDe& de);

      virtual ~DtModelInstanceFactory();

      static std::string modelInstanceHintParameterName();

      DtModelInstance* createModelInstance(const std::string& objectClassName,
         DtModelDefinition& definition,
         bool ignoreDefinitionHint = false,
         const std::string& modelInstanceClassOverride = "");

      bool isClassRegistered(const std::string& objectClass) const;

      void registerSceneObjectClass(const std::string& objectClass,
         const CreatorClassList& classes);

      void registerModelInstanceCreator(const std::string& modelInstanceClassName,
         DtModelInstanceCreator*);

      const CreatorClassList& sceneObjectClassCreators(const std::string& objectClass);     

      void addObjectClassCreatorToFront(const std::string& objectClass,
         const std::string& newCreatorClass);

      void addObjectClassCreatorToBack(const std::string& objectClass,
         const std::string& newCreatorClass);

   protected:

      DtModelInstanceFactory(DtDe& de);

      virtual CreatorClassList modelDefinitionHints(const DtModelDefinition& modelInstance);

      virtual DtModelInstance* createAndRealize(const std::string& modelInstanceClassName, 
         DtModelDefinition& modelDefinition);
     
      typedef std::map<std::string,DtModelInstanceCreator*> CreatorMap;   
      typedef std::map<std::string,CreatorClassList> ObjectClassMap;

      DtDe& myDe;

      bool myEnableDebugModelInstanceFallback;
      std::string myDebugModelInstanceClass;

      CreatorMap myCreators;
      ObjectClassMap myObjectCreatorMap;
   };
} 
 
#endif