/****************************************************************************
**
** https://www.qxorm.com/
** Copyright (C) 2013 XDL Team (ic-east.com)
**
** This file is part of the QxOrm library
**
** This software is provided 'as-is', without any express or implied
** warranty. In no event will the authors be held liable for any
** damages arising from the use of this software
**
** Commercial Usage
** Licensees holding valid commercial QxOrm licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and XDL Team
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file 'license.gpl3.txt' included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met : http://www.gnu.org/copyleft/gpl.html
**
** If you are unsure which license is appropriate for your use, or
** if you have questions regarding the use of this file, please contact :
** ic-east.com
**
****************************************************************************/

#ifndef _QX_ANY_CAST_DYNAMIC_H_
#define _QX_ANY_CAST_DYNAMIC_H_

#ifdef _MSC_VER
#pragma once
#endif

/*!
 * \file QxAnyCastDynamic.h
 * \author XDL Team
 * \ingroup QxCommon
 * \brief qx::any_cast_dynamic<T>::get() : provides a tool to use qx::any_cast and polymorphism
 */

#include <QtCore/qsharedpointer.h>

#include <QxCommon/QxAny.h>

#include <QxDao/QxDaoPointer.h>

namespace qx
{

   template <typename T>
   struct any_cast_dynamic
   {
      static T get(const qx::any &a) { return qx::any_cast<T>(a); }
   };

   template <typename T>
   struct any_cast_dynamic<T *>
   {
      static T *get(const qx::any &a)
      {
         if (a.empty())
         {
            return NULL;
         }
         qx::any *b = const_cast<qx::any *>(&a);
         T **t = qx::unsafe_any_cast<T *>(b);
         if (!t)
         {
            return NULL;
         }
         return (*t);
      }
   };

#ifdef _QX_ENABLE_BOOST

   template <typename T>
   struct any_cast_dynamic<boost::shared_ptr<T>>
   {
      static boost::shared_ptr<T> get(const qx::any &a)
      {
         if (a.empty())
         {
            return boost::shared_ptr<T>();
         }
         qx::any *b = const_cast<qx::any *>(&a);
         boost::shared_ptr<T> *t = qx::unsafe_any_cast<boost::shared_ptr<T>>(b);
         if (!t)
         {
            return boost::shared_ptr<T>();
         }
         return (*t);
      }
   };

#endif // _QX_ENABLE_BOOST

   template <typename T>
   struct any_cast_dynamic<QSharedPointer<T>>
   {
      static QSharedPointer<T> get(const qx::any &a)
      {
         if (a.empty())
         {
            return QSharedPointer<T>();
         }
         qx::any *b = const_cast<qx::any *>(&a);
         QSharedPointer<T> *t = qx::unsafe_any_cast<QSharedPointer<T>>(b);
         if (!t)
         {
            return QSharedPointer<T>();
         }
         return (*t);
      }
   };

   template <typename T>
   struct any_cast_dynamic<qx::dao::ptr<T>>
   {
      static qx::dao::ptr<T> get(const qx::any &a)
      {
         if (a.empty())
         {
            return qx::dao::ptr<T>();
         }
         qx::any *b = const_cast<qx::any *>(&a);
         qx::dao::ptr<T> *t = qx::unsafe_any_cast<qx::dao::ptr<T>>(b);
         if (!t)
         {
            return qx::dao::ptr<T>();
         }
         return (*t);
      }
   };

   template <typename T>
   struct any_cast_dynamic<std::shared_ptr<T>>
   {
      static std::shared_ptr<T> get(const qx::any &a)
      {
         if (a.empty())
         {
            return std::shared_ptr<T>();
         }
         qx::any *b = const_cast<qx::any *>(&a);
         std::shared_ptr<T> *t = qx::unsafe_any_cast<std::shared_ptr<T>>(b);
         if (!t)
         {
            return std::shared_ptr<T>();
         }
         return (*t);
      }
   };

} // namespace qx

#endif // _QX_ANY_CAST_DYNAMIC_H_