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QxDataMember.h
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    00001 /****************************************************************************
    00002 **
    00003 ** https://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 #ifdef _QX_ENABLE_BOOST_SERIALIZATION
    00047 #include <boost/serialization/serialization.hpp>
    00048 #include <boost/serialization/nvp.hpp>
    00049 #endif // _QX_ENABLE_BOOST_SERIALIZATION
    00050
    00051 #include <QxDataMember/IxDataMember.h>
    00052
    00053 #include <QxTraits/is_equal.h>
    00054 #include <QxTraits/get_class_name.h>
    00055
    00056 #define QX_DATA_MEMBER_IMPL_VIRTUAL_ARCHIVE(ArchiveInput, ArchiveOutput) \
    00057 virtual void toArchive(const void * pOwner, ArchiveOutput & ar) const   { QxDataMember::toArchive(ar, getNamePtr(), getData(pOwner)); } \
    00058 virtual void fromArchive(void * pOwner, ArchiveInput & ar)              { QxDataMember::fromArchive(ar, getNamePtr(), getData(pOwner)); }
    00059
    00060 namespace qx {
    00061
    00066 template <typename DataType, class Owner>
    00067 class QxDataMember : public IxDataMember
    00068 {
    00069
    00070 protected:
    00071
    00072    typedef DataType Owner::* type_data_member_ptr;
    00073
    00074    type_data_member_ptr m_pData;
    00075
    00076 public:
    00077
    00078    QxDataMember(type_data_member_ptr pData, const QString & sKey) : IxDataMember(sKey), m_pData(pData) { this->setAccessDataPointer(true); }
    00079    QxDataMember(type_data_member_ptr pData, const QString & sKey, long lVersion, bool bSerialize, bool bDao) : IxDataMember(sKey, lVersion, bSerialize, bDao), m_pData(pData) { this->setAccessDataPointer(true); }
    00080    virtual ~QxDataMember() { ; }
    00081
    00082    inline DataType * getData(void * pOwner) const              { return (pOwner ? (& ((static_cast<Owner *>(pOwner))->*m_pData)) : NULL); }
    00083    inline const DataType * getData(const void * pOwner) const  { return (pOwner ? (& ((static_cast<const Owner *>(pOwner))->*m_pData)) : NULL); }
    00084
    00085    virtual QVariant toVariant(const void * pOwner, const QString & sFormat, int iIndexName = -1, qx::cvt::context::ctx_type ctx = qx::cvt::context::e_no_context) const          { return qx::cvt::to_variant((* getData(pOwner)), sFormat, iIndexName, ctx); }
    00086    virtual qx_bool fromVariant(void * pOwner, const QVariant & v, const QString & sFormat, int iIndexName = -1, qx::cvt::context::ctx_type ctx = qx::cvt::context::e_no_context) { return qx::cvt::from_variant(v, (* getData(pOwner)), sFormat, iIndexName, ctx); }
    00087    virtual QString getType() const { return QString(qx::trait::get_class_name<DataType>::get()); }
    00088
    00089 #ifndef _QX_NO_JSON
    00090    virtual QJsonValue toJson(const void * pOwner, const QString & sFormat) const             { return qx::cvt::to_json((* getData(pOwner)), sFormat); }
    00091    virtual qx_bool fromJson(void * pOwner, const QJsonValue & j, const QString & sFormat)    { return qx::cvt::from_json(j, (* getData(pOwner)), sFormat); }
    00092 #endif // _QX_NO_JSON
    00093
    00094    virtual bool isEqual(const void * pOwner1, const void * pOwner2) const
    00095    {
    00096       if ((pOwner1 == NULL) || (pOwner2 == NULL)) { return false; }
    00097       if (pOwner1 == pOwner2) { return true; }
    00098       return qxCompareDataMember<qx::trait::has_operator_equal_equal<DataType>::value, 0>::isEqual((* this), pOwner1, pOwner2);
    00099    }
    00100
    00101 protected:
    00102
    00103    virtual qx::any getDataPtr(const void * pOwner) const       { return qx::any(getData(pOwner)); }
    00104    virtual qx::any getDataPtr(void * pOwner)                   { return qx::any(getData(pOwner)); }
    00105    virtual void * getDataVoidPtr(const void * pOwner) const    { return static_cast<void *>(const_cast<DataType *>(getData(pOwner))); }
    00106    virtual void * getDataVoidPtr(void * pOwner)                { return static_cast<void *>(getData(pOwner)); }
    00107
    00108 public:
    00109
    00110 #ifdef _QX_ENABLE_BOOST_SERIALIZATION
    00111
    00112 #if _QX_SERIALIZE_POLYMORPHIC
    00113    QX_DATA_MEMBER_IMPL_VIRTUAL_ARCHIVE(boost::archive::polymorphic_iarchive, boost::archive::polymorphic_oarchive)
    00114 #endif // _QX_SERIALIZE_POLYMORPHIC
    00115
    00116 #if _QX_SERIALIZE_BINARY
    00117    QX_DATA_MEMBER_IMPL_VIRTUAL_ARCHIVE(boost::archive::binary_iarchive, boost::archive::binary_oarchive)
    00118 #endif // _QX_SERIALIZE_BINARY
    00119
    00120 #if _QX_SERIALIZE_TEXT
    00121    QX_DATA_MEMBER_IMPL_VIRTUAL_ARCHIVE(boost::archive::text_iarchive, boost::archive::text_oarchive)
    00122 #endif // _QX_SERIALIZE_TEXT
    00123
    00124 #if _QX_SERIALIZE_XML
    00125    QX_DATA_MEMBER_IMPL_VIRTUAL_ARCHIVE(boost::archive::xml_iarchive, boost::archive::xml_oarchive)
    00126 #endif // _QX_SERIALIZE_XML
    00127
    00128 #if _QX_SERIALIZE_PORTABLE_BINARY
    00129    QX_DATA_MEMBER_IMPL_VIRTUAL_ARCHIVE(eos::portable_iarchive, eos::portable_oarchive)
    00130 #endif // _QX_SERIALIZE_PORTABLE_BINARY
    00131
    00132 #if _QX_SERIALIZE_WIDE_BINARY
    00133    QX_DATA_MEMBER_IMPL_VIRTUAL_ARCHIVE(boost::archive::binary_wiarchive, boost::archive::binary_woarchive)
    00134 #endif // _QX_SERIALIZE_WIDE_BINARY
    00135
    00136 #if _QX_SERIALIZE_WIDE_TEXT
    00137    QX_DATA_MEMBER_IMPL_VIRTUAL_ARCHIVE(boost::archive::text_wiarchive, boost::archive::text_woarchive)
    00138 #endif // _QX_SERIALIZE_WIDE_TEXT
    00139
    00140 #if _QX_SERIALIZE_WIDE_XML
    00141    QX_DATA_MEMBER_IMPL_VIRTUAL_ARCHIVE(boost::archive::xml_wiarchive, boost::archive::xml_woarchive)
    00142 #endif // _QX_SERIALIZE_WIDE_XML
    00143
    00144 #endif // _QX_ENABLE_BOOST_SERIALIZATION
    00145
    00146 private:
    00147
    00148 #ifdef _QX_ENABLE_BOOST_SERIALIZATION
    00149
    00150    template <class Archive>
    00151    static inline void toArchive(Archive & ar, const char * sName, const DataType * pData)
    00152    { ar << boost::serialization::make_nvp(sName, (* pData)); }
    00153
    00154    template <class Archive>
    00155    static inline void fromArchive(Archive & ar, const char * sName, DataType * pData)
    00156    { ar >> boost::serialization::make_nvp(sName, (* pData)); }
    00157
    00158 #endif // _QX_ENABLE_BOOST_SERIALIZATION
    00159
    00160 private:
    00161
    00162    template <bool bCanCompare /* = false */, int dummy>
    00163    struct qxCompareDataMember
    00164    {
    00165       static inline bool isEqual(const QxDataMember<DataType, Owner> & dataMember, const void * pOwner1, const void * pOwner2)
    00166       { return (dataMember.toVariant(pOwner1, "") == dataMember.toVariant(pOwner2, "")); }
    00167    };
    00168
    00169    template <int dummy>
    00170    struct qxCompareDataMember<true, dummy>
    00171    {
    00172       static inline bool isEqual(const QxDataMember<DataType, Owner> & dataMember, const void * pOwner1, const void * pOwner2)
    00173       { return ((* dataMember.getData(pOwner1)) == (* dataMember.getData(pOwner2))); }
    00174    };
    00175
    00176 };
    00177
    00178 } // namespace qx
    00179
    00180 #include "../../inl/QxDataMember/QxDataMember.inl"
    00181
    00182 #endif // _QX_DATA_MEMBER_H_