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QxAnyCastDynamic.h
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    00001 /****************************************************************************
    00002 **
    00003 ** http://www.qxorm.com/
    00004 ** Copyright (C) 2013 Lionel Marty (contact@qxorm.com)
    00005 **
    00006 ** This file is part of the QxOrm library
    00007 **
    00008 ** This software is provided 'as-is', without any express or implied
    00009 ** warranty. In no event will the authors be held liable for any
    00010 ** damages arising from the use of this software
    00011 **
    00012 ** Commercial Usage
    00013 ** Licensees holding valid commercial QxOrm licenses may use this file in
    00014 ** accordance with the commercial license agreement provided with the
    00015 ** Software or, alternatively, in accordance with the terms contained in
    00016 ** a written agreement between you and Lionel Marty
    00017 **
    00018 ** GNU General Public License Usage
    00019 ** Alternatively, this file may be used under the terms of the GNU
    00020 ** General Public License version 3.0 as published by the Free Software
    00021 ** Foundation and appearing in the file 'license.gpl3.txt' included in the
    00022 ** packaging of this file. Please review the following information to
    00023 ** ensure the GNU General Public License version 3.0 requirements will be
    00024 ** met : http://www.gnu.org/copyleft/gpl.html
    00025 **
    00026 ** If you are unsure which license is appropriate for your use, or
    00027 ** if you have questions regarding the use of this file, please contact :
    00028 ** contact@qxorm.com
    00029 **
    00030 ****************************************************************************/
    00031
    00032 #ifndef _QX_ANY_CAST_DYNAMIC_H_
    00033 #define _QX_ANY_CAST_DYNAMIC_H_
    00034
    00035 #ifdef _MSC_VER
    00036 #pragma once
    00037 #endif
    00038
    00046 #include <boost/any.hpp>
    00047 #include <boost/shared_ptr.hpp>
    00048
    00049 #include <QtCore/qsharedpointer.h>
    00050
    00051 #include <QxDao/QxDaoPointer.h>
    00052
    00053 namespace qx {
    00054
    00055 template <typename T>
    00056 struct any_cast_dynamic
    00057 { static T get(const boost::any & a) { return boost::any_cast<T>(a); } };
    00058
    00059 template <typename T>
    00060 struct any_cast_dynamic<T *>
    00061 {
    00062    static T * get(const boost::any & a)
    00063    {
    00064       if (a.empty()) { return NULL; }
    00065       boost::any * b = const_cast<boost::any *>(& a);
    00066       T ** t = boost::unsafe_any_cast<T *>(b);
    00067       if (! t) { return NULL; }
    00068       return (* t);
    00069    }
    00070 };
    00071
    00072 template <typename T>
    00073 struct any_cast_dynamic< boost::shared_ptr<T> >
    00074 {
    00075    static boost::shared_ptr<T> get(const boost::any & a)
    00076    {
    00077       if (a.empty()) { return boost::shared_ptr<T>(); }
    00078       boost::any * b = const_cast<boost::any *>(& a);
    00079       boost::shared_ptr<T> * t = boost::unsafe_any_cast< boost::shared_ptr<T> >(b);
    00080       if (! t) { return boost::shared_ptr<T>(); }
    00081       return (* t);
    00082    }
    00083 };
    00084
    00085 template <typename T>
    00086 struct any_cast_dynamic< QSharedPointer<T> >
    00087 {
    00088    static QSharedPointer<T> get(const boost::any & a)
    00089    {
    00090       if (a.empty()) { return QSharedPointer<T>(); }
    00091       boost::any * b = const_cast<boost::any *>(& a);
    00092       QSharedPointer<T> * t = boost::unsafe_any_cast< QSharedPointer<T> >(b);
    00093       if (! t) { return QSharedPointer<T>(); }
    00094       return (* t);
    00095    }
    00096 };
    00097
    00098 template <typename T>
    00099 struct any_cast_dynamic< qx::dao::ptr<T> >
    00100 {
    00101    static qx::dao::ptr<T> get(const boost::any & a)
    00102    {
    00103       if (a.empty()) { return qx::dao::ptr<T>(); }
    00104       boost::any * b = const_cast<boost::any *>(& a);
    00105       qx::dao::ptr<T> * t = boost::unsafe_any_cast< qx::dao::ptr<T> >(b);
    00106       if (! t) { return qx::dao::ptr<T>(); }
    00107       return (* t);
    00108    }
    00109 };
    00110
    00111 } // namespace qx
    00112
    00113 #endif // _QX_ANY_CAST_DYNAMIC_H_