DtElementFactory.h

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


#pragma once

#include <vrvCore/vrvCore.h> 
#include <vrvCore/DtElementEntry.h>

#include <vrvUtil/DtVirtualBaseClass.h>

#include <unordered_map>

namespace makVrv
{
   class DtElementCreator;
   class DtBaseConnection;
   class DtElement;
   class DtStateListener;

   class DT_DLL_VRVCORE DtElementFactory : public DtVirtualBaseClass
   {
   public:
      using CreatorMap = std::unordered_map<std::string, DtElementCreator*>;

      virtual ~DtElementFactory();

      DtElementFactory( const DtElementFactory& rhs );

      DtElementFactory& operator=( const DtElementFactory& rhs );

      static DtElementFactory& instance( DtDe& de );

      static DtElementFactory& instance( DtBaseConnection& con );

      virtual DtElementFactory* clone();

      static void copyInstance( DtBaseConnection& con, DtDe& de );

      const CreatorMap& creators() const;

      virtual void addElementCreator( DtDe& de,
         DtElementCreator* creator );

      DtElement* createElement( DtElementEntry::ElementType type,
         DtBaseConnection& connection, DtStateListener& listener, const std::string& tag );
   protected:
      DtElementFactory();
   protected:
      CreatorMap myCreatorMap;
   };
}