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QxFunction_2.h
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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_FUNCTION_2_H_
    00027 #define _QX_FUNCTION_2_H_
    00028
    00029 #ifdef _MSC_VER
    00030 #pragma once
    00031 #endif
    00032
    00040 #include <QxFunction/IxFunction.h>
    00041 #include <QxFunction/QxParameters.h>
    00042
    00043 namespace qx {
    00044
    00049 template <class Owner, typename R, typename P1, typename P2>
    00050 class QxFunction_2 : public IxFunction
    00051 {
    00052
    00053 public:
    00054
    00055    typedef boost::function<R (Owner *, P1, P2)> type_fct;
    00056    typedef typename qx::trait::remove_attr<P1, false>::type type_P1;
    00057    typedef typename qx::trait::remove_attr<P2, false>::type type_P2;
    00058    QX_FUNCTION_CLASS_MEMBER_FCT(QxFunction_2);
    00059
    00060    virtual qx_bool isValidParams(const QString & params) const          { Q_UNUSED(params); return true; }
    00061    virtual qx_bool isValidParams(const type_any_params & params) const  { Q_UNUSED(params); return true; }
    00062
    00063 private:
    00064
    00065    template <class T, bool bReturnValue /* = false */>
    00066    struct QxInvokerFct
    00067    {
    00068       static inline qx_bool invoke(void * pOwner, const T & params, boost::any * ret, const QxFunction_2 * pThis)
    00069       {
    00070          QX_FUNCTION_INVOKE_START_WITH_OWNER();
    00071          QX_FUNCTION_FETCH_PARAM(type_P1, p1, get_param_1);
    00072          QX_FUNCTION_FETCH_PARAM(type_P2, p2, get_param_2);
    00073          try { pThis->m_fct(static_cast<Owner *>(pOwner), p1, p2); }
    00074          QX_FUNCTION_CATCH_AND_RETURN_INVOKE();
    00075       }
    00076    };
    00077
    00078    template <class T>
    00079    struct QxInvokerFct<T, true>
    00080    {
    00081       static inline qx_bool invoke(void * pOwner, const T & params, boost::any * ret, const QxFunction_2 * pThis)
    00082       {
    00083          QX_FUNCTION_INVOKE_START_WITH_OWNER();
    00084          QX_FUNCTION_FETCH_PARAM(type_P1, p1, get_param_1);
    00085          QX_FUNCTION_FETCH_PARAM(type_P2, p2, get_param_2);
    00086          try { R retTmp = pThis->m_fct(static_cast<Owner *>(pOwner), p1, p2); if (ret) { (* ret) = boost::any(retTmp); } }
    00087          QX_FUNCTION_CATCH_AND_RETURN_INVOKE();
    00088       }
    00089    };
    00090
    00091 };
    00092
    00093 template <typename R, typename P1, typename P2>
    00094 class QxFunction_2<void, R, P1, P2> : public IxFunction
    00095 {
    00096
    00097 public:
    00098
    00099    typedef boost::function<R (P1, P2)> type_fct;
    00100    typedef typename qx::trait::remove_attr<P1, false>::type type_P1;
    00101    typedef typename qx::trait::remove_attr<P2, false>::type type_P2;
    00102    QX_FUNCTION_CLASS_FCT(QxFunction_2);
    00103
    00104    virtual qx_bool isValidParams(const QString & params) const          { Q_UNUSED(params); return true; }
    00105    virtual qx_bool isValidParams(const type_any_params & params) const  { Q_UNUSED(params); return true; }
    00106
    00107 private:
    00108
    00109    template <class T, bool bReturnValue /* = false */>
    00110    struct QxInvokerFct
    00111    {
    00112       static inline qx_bool invoke(const T & params, boost::any * ret, const QxFunction_2 * pThis)
    00113       {
    00114          QX_FUNCTION_INVOKE_START_WITHOUT_OWNER();
    00115          QX_FUNCTION_FETCH_PARAM(type_P1, p1, get_param_1);
    00116          QX_FUNCTION_FETCH_PARAM(type_P2, p2, get_param_2);
    00117          try { pThis->m_fct(p1, p2); }
    00118          QX_FUNCTION_CATCH_AND_RETURN_INVOKE();
    00119       }
    00120    };
    00121
    00122    template <class T>
    00123    struct QxInvokerFct<T, true>
    00124    {
    00125       static inline qx_bool invoke(const T & params, boost::any * ret, const QxFunction_2 * pThis)
    00126       {
    00127          QX_FUNCTION_INVOKE_START_WITHOUT_OWNER();
    00128          QX_FUNCTION_FETCH_PARAM(type_P1, p1, get_param_1);
    00129          QX_FUNCTION_FETCH_PARAM(type_P2, p2, get_param_2);
    00130          try { R retTmp = pThis->m_fct(p1, p2); if (ret) { (* ret) = boost::any(retTmp); } }
    00131          QX_FUNCTION_CATCH_AND_RETURN_INVOKE();
    00132       }
    00133    };
    00134
    00135 };
    00136
    00137 namespace function {
    00138
    00139 template <class Owner, typename R, typename P1, typename P2>
    00140 IxFunction_ptr bind_fct_2(const typename QxFunction_2<Owner, R, P1, P2>::type_fct & fct)
    00141 {
    00142    typedef boost::is_same<Owner, void> qx_verify_owner_tmp;
    00143    BOOST_STATIC_ASSERT(qx_verify_owner_tmp::value);
    00144    IxFunction_ptr ptr; ptr.reset(new QxFunction_2<void, R, P1, P2>(fct));
    00145    return ptr;
    00146 }
    00147
    00148 template <class Owner, typename R, typename P1, typename P2>
    00149 IxFunction_ptr bind_member_fct_2(const typename QxFunction_2<Owner, R, P1, P2>::type_fct & fct)
    00150 {
    00151    typedef boost::is_same<Owner, void> qx_verify_owner_tmp;
    00152    BOOST_STATIC_ASSERT(! qx_verify_owner_tmp::value);
    00153    IxFunction_ptr ptr; ptr.reset(new QxFunction_2<Owner, R, P1, P2>(fct));
    00154    return ptr;
    00155 }
    00156
    00157 } // namespace function
    00158 } // namespace qx
    00159
    00160 #endif // _QX_FUNCTION_2_H_