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QxDataMember.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_DATA_MEMBER_H_
    00033 #define _QX_DATA_MEMBER_H_
    00034
    00035 #ifdef _MSC_VER
    00036 #pragma once
    00037 #endif
    00038
    00046 #include <boost/serialization/serialization.hpp>
    00047 #include <boost/serialization/nvp.hpp>
    00048
    00049 #include <boost/tuple/tuple.hpp>
    00050 #include <boost/tuple/tuple_comparison.hpp>
    00051 #include <boost/tuple/tuple_io.hpp>
    00052
    00053 #include <QxDataMember/IxDataMember.h>
    00054
    00055 #include <QxCommon/QxStringCvt.h>
    00056
    00057 #include <QxTraits/is_equal.h>
    00058
    00059 #define QX_DATA_MEMBER_IMPL_VIRTUAL_ARCHIVE(ArchiveInput, ArchiveOutput) \
    00060 virtual void toArchive(const void * pOwner, ArchiveOutput & ar) const   { QxDataMember::toArchive(ar, getNamePtr(), getData(pOwner)); } \
    00061 virtual void fromArchive(void * pOwner, ArchiveInput & ar)              { QxDataMember::fromArchive(ar, getNamePtr(), getData(pOwner)); }
    00062
    00063 namespace qx {
    00064
    00069 template <typename DataType, class Owner>
    00070 class QxDataMember : public IxDataMember
    00071 {
    00072
    00073 protected:
    00074
    00075    typedef DataType Owner::* type_data_member_ptr;
    00076
    00077    type_data_member_ptr m_pData;
    00078
    00079 public:
    00080
    00081    QxDataMember(type_data_member_ptr pData, const QString & sKey) : IxDataMember(sKey), m_pData(pData) { m_bAccessDataPointer = true; }
    00082    QxDataMember(type_data_member_ptr pData, const QString & sKey, long lVersion, bool bSerialize, bool bDao) : IxDataMember(sKey, lVersion, bSerialize, bDao), m_pData(pData) { m_bAccessDataPointer = true; }
    00083    virtual ~QxDataMember() { ; }
    00084
    00085    inline DataType * getData(void * pOwner) const              { return (pOwner ? (& ((static_cast<Owner *>(pOwner))->*m_pData)) : NULL); }
    00086    inline const DataType * getData(const void * pOwner) const  { return (pOwner ? (& ((static_cast<const Owner *>(pOwner))->*m_pData)) : NULL); }
    00087
    00088    virtual QString toString(const void * pOwner, const QString & sFormat, int iIndexName = -1) const              { return qx::cvt::to_string((* getData(pOwner)), sFormat, iIndexName); }
    00089    virtual qx_bool fromString(void * pOwner, const QString & s, const QString & sFormat, int iIndexName = -1)     { return qx::cvt::from_string(s, (* getData(pOwner)), sFormat, iIndexName); }
    00090    virtual QVariant toVariant(const void * pOwner, const QString & sFormat, int iIndexName = -1) const            { return qx::cvt::to_variant((* getData(pOwner)), sFormat, iIndexName); }
    00091    virtual qx_bool fromVariant(void * pOwner, const QVariant & v, const QString & sFormat, int iIndexName = -1)   { return qx::cvt::from_variant(v, (* getData(pOwner)), sFormat, iIndexName); }
    00092
    00093    virtual bool isEqual(const void * pOwner1, const void * pOwner2) const
    00094    {
    00095       if ((pOwner1 == NULL) || (pOwner2 == NULL)) { return false; }
    00096       if (pOwner1 == pOwner2) { return true; }
    00097       return qxCompareDataMember<qx::trait::has_operator_equal_equal<DataType>::value, 0>::isEqual((* this), pOwner1, pOwner2);
    00098    }
    00099
    00100 protected:
    00101
    00102    virtual boost::any getDataPtr(const void * pOwner) const    { return boost::any(getData(pOwner)); }
    00103    virtual boost::any getDataPtr(void * pOwner)                { return boost::any(getData(pOwner)); }
    00104    virtual void * getDataVoidPtr(const void * pOwner) const    { return static_cast<void *>(const_cast<DataType *>(getData(pOwner))); }
    00105    virtual void * getDataVoidPtr(void * pOwner)                { return static_cast<void *>(getData(pOwner)); }
    00106
    00107 public:
    00108
    00109 #if _QX_SERIALIZE_POLYMORPHIC
    00110    QX_DATA_MEMBER_IMPL_VIRTUAL_ARCHIVE(boost::archive::polymorphic_iarchive, boost::archive::polymorphic_oarchive)
    00111 #endif // _QX_SERIALIZE_POLYMORPHIC
    00112
    00113 #if _QX_SERIALIZE_BINARY
    00114    QX_DATA_MEMBER_IMPL_VIRTUAL_ARCHIVE(boost::archive::binary_iarchive, boost::archive::binary_oarchive)
    00115 #endif // _QX_SERIALIZE_BINARY
    00116
    00117 #if _QX_SERIALIZE_TEXT
    00118    QX_DATA_MEMBER_IMPL_VIRTUAL_ARCHIVE(boost::archive::text_iarchive, boost::archive::text_oarchive)
    00119 #endif // _QX_SERIALIZE_TEXT
    00120
    00121 #if _QX_SERIALIZE_XML
    00122    QX_DATA_MEMBER_IMPL_VIRTUAL_ARCHIVE(boost::archive::xml_iarchive, boost::archive::xml_oarchive)
    00123 #endif // _QX_SERIALIZE_XML
    00124
    00125 #if _QX_SERIALIZE_PORTABLE_BINARY
    00126    QX_DATA_MEMBER_IMPL_VIRTUAL_ARCHIVE(eos::portable_iarchive, eos::portable_oarchive)
    00127 #endif // _QX_SERIALIZE_PORTABLE_BINARY
    00128
    00129 #if _QX_SERIALIZE_WIDE_BINARY
    00130    QX_DATA_MEMBER_IMPL_VIRTUAL_ARCHIVE(boost::archive::binary_wiarchive, boost::archive::binary_woarchive)
    00131 #endif // _QX_SERIALIZE_WIDE_BINARY
    00132
    00133 #if _QX_SERIALIZE_WIDE_TEXT
    00134    QX_DATA_MEMBER_IMPL_VIRTUAL_ARCHIVE(boost::archive::text_wiarchive, boost::archive::text_woarchive)
    00135 #endif // _QX_SERIALIZE_WIDE_TEXT
    00136
    00137 #if _QX_SERIALIZE_WIDE_XML
    00138    QX_DATA_MEMBER_IMPL_VIRTUAL_ARCHIVE(boost::archive::xml_wiarchive, boost::archive::xml_woarchive)
    00139 #endif // _QX_SERIALIZE_WIDE_XML
    00140
    00141 private:
    00142
    00143    template <class Archive>
    00144    static inline void toArchive(Archive & ar, const char * sName, const DataType * pData)
    00145    { ar << boost::serialization::make_nvp(sName, (* pData)); }
    00146
    00147    template <class Archive>
    00148    static inline void fromArchive(Archive & ar, const char * sName, DataType * pData)
    00149    { ar >> boost::serialization::make_nvp(sName, (* pData)); }
    00150
    00151 private:
    00152
    00153    template <bool bCanCompare /* = false */, int dummy>
    00154    struct qxCompareDataMember
    00155    {
    00156       static inline bool isEqual(const QxDataMember<DataType, Owner> & dataMember, const void * pOwner1, const void * pOwner2)
    00157       { return (dataMember.toString(pOwner1, "") == dataMember.toString(pOwner2, "")); }
    00158    };
    00159
    00160    template <int dummy>
    00161    struct qxCompareDataMember<true, dummy>
    00162    {
    00163       static inline bool isEqual(const QxDataMember<DataType, Owner> & dataMember, const void * pOwner1, const void * pOwner2)
    00164       { return ((* dataMember.getData(pOwner1)) == (* dataMember.getData(pOwner2))); }
    00165    };
    00166
    00167 };
    00168
    00169 } // namespace qx
    00170
    00171 #include "../../inl/QxDataMember/QxDataMember.inl"
    00172
    00173 #endif // _QX_DATA_MEMBER_H_