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QxOrm 1.1.9
C++ Object Relational Mapping library
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00001 /**************************************************************************** 00002 ** 00003 ** http://www.qxorm.com/ 00004 ** http://sourceforge.net/projects/qxorm/ 00005 ** Original file by Lionel Marty 00006 ** 00007 ** This file is part of the QxOrm library 00008 ** 00009 ** This software is provided 'as-is', without any express or implied 00010 ** warranty. In no event will the authors be held liable for any 00011 ** damages arising from the use of this software. 00012 ** 00013 ** GNU Lesser General Public License Usage 00014 ** This file must be used under the terms of the GNU Lesser 00015 ** General Public License version 2.1 as published by the Free Software 00016 ** Foundation and appearing in the file 'license.lgpl.txt' included in the 00017 ** packaging of this file. Please review the following information to 00018 ** ensure the GNU Lesser General Public License version 2.1 requirements 00019 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. 00020 ** 00021 ** If you have questions regarding the use of this file, please contact : 00022 ** contact@qxorm.com 00023 ** 00024 ****************************************************************************/ 00025 00026 #ifndef _QX_QT_META_OBJECT_H_ 00027 #define _QX_QT_META_OBJECT_H_ 00028 00029 #ifdef _MSC_VER 00030 #pragma once 00031 #endif 00032 00040 #include <boost/type_traits/is_base_of.hpp> 00041 00042 #include <QtCore/qmetaobject.h> 00043 #include <QtCore/qmetatype.h> 00044 00045 namespace qx { 00046 namespace trait { 00047 00052 template <typename T> 00053 class qt_meta_object 00054 { 00055 00056 public: 00057 00058 enum { is_valid = (boost::is_base_of<QObject, T>::value) }; 00059 00060 static const QMetaObject * get() 00061 { return qtMetaObject<qt_meta_object<T>::is_valid, 0>::get(); } 00062 00063 private: 00064 00065 template <bool isQObject /* = false */, int dummy> 00066 struct qtMetaObject 00067 { static inline const QMetaObject * get() { return NULL; } }; 00068 00069 template <int dummy> 00070 struct qtMetaObject<true, dummy> 00071 { static inline const QMetaObject * get() { return (& T::staticMetaObject); } }; 00072 00073 }; 00074 00075 } // namespace trait 00076 } // namespace qx 00077 00078 #endif // _QX_QT_META_OBJECT_H_