DtSharedPtrCallbackWrapper.h

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/****************************************************************************** 
** Copyright (c) 2016 MAK Technologies, Inc. 
** All rights reserved. 
******************************************************************************/ 


#pragma once

//#include <vrvUtil/vrvUtil.h>

#include <boost/shared_ptr.hpp>
#include <boost/weak_ptr.hpp>

namespace makVrv
{
   template <typename T>
   class DtSharedPtrCallbackWrapper
   {
   public:
      explicit DtSharedPtrCallbackWrapper(const boost::shared_ptr<T>& obj)
         : myObj(obj)
      {
         assert(obj);
      }

      explicit DtSharedPtrCallbackWrapper(T* obj)
         : myObj(boost::shared_ptr<T>(obj))
      {
         assert(obj);
      }

      template <typename P1>
      void operator()(const P1& p1) const
      {
         boost::shared_ptr<T> obj = myObj.lock();

         if (obj)
         {
            (*obj)(p1);
         }
      }

      template <typename P1, typename P2>
      void operator()(const P1& p1, const P2& p2) const
      {
         boost::shared_ptr<T> obj = myObj.lock();

         if (obj)
         {
            (*obj)(p1, p2);
         }
      }

      template <typename P1, typename P2, typename P3>
      void operator()(const P1& p1, const P2& p2, const P3& p3) const
      {
         boost::shared_ptr<T> obj = myObj.lock();

         if (obj)
         {
            (*obj)(p1, p2, p3);
         }
      }

   private:
      const boost::weak_ptr<T> myObj;
   };
}