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IxFunction.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 _IX_FUNCTION_H_
    00033 #define _IX_FUNCTION_H_
    00034
    00035 #ifdef _MSC_VER
    00036 #pragma once
    00037 #endif
    00038
    00046 #include <boost/any.hpp>
    00047 #include <boost/function.hpp>
    00048 #include <boost/lexical_cast.hpp>
    00049 #include <boost/static_assert.hpp>
    00050 #include <boost/type_traits/is_same.hpp>
    00051
    00052 #include <QxCommon/QxBool.h>
    00053 #include <QxCommon/QxPropertyBag.h>
    00054
    00055 #include <QxCollection/QxCollection.h>
    00056
    00057 #include <QxFunction/QxFunctionError.h>
    00058 #include <QxFunction/QxFunctionMacro.h>
    00059
    00060 #include <QxTraits/remove_attr.h>
    00061
    00062 namespace qx {
    00063
    00068 class IxFunction : public qx::QxPropertyBag
    00069 {
    00070
    00071 protected:
    00072
    00073    QString m_sKey;
    00074    QString m_sSeparator;
    00075
    00076 public:
    00077
    00078    typedef std::vector<boost::any> type_any_params;
    00079
    00080    IxFunction() : qx::QxPropertyBag(), m_sSeparator("|") { ; }
    00081    virtual ~IxFunction() { ; }
    00082
    00083    QString getKey() const                 { return m_sKey; }
    00084    QString getSeparator() const           { return m_sSeparator; }
    00085
    00086    void setKey(const QString & s)         { m_sKey = s; }
    00087    void setSeparator(const QString & s)   { m_sSeparator = s; }
    00088
    00089    virtual qx_bool invoke(const QString & params = QString(), boost::any * ret = NULL) const = 0;
    00090    virtual qx_bool invoke(const type_any_params & params, boost::any * ret = NULL) const = 0;
    00091    virtual qx_bool invoke(void * pOwner, const QString & params = QString(), boost::any * ret = NULL) const = 0;
    00092    virtual qx_bool invoke(void * pOwner, const type_any_params & params, boost::any * ret = NULL) const = 0;
    00093
    00094    virtual qx_bool isValidFct() const = 0;
    00095    virtual qx_bool isValidParams(const QString & params) const = 0;
    00096    virtual qx_bool isValidParams(const type_any_params & params) const = 0;
    00097
    00098    template <class T>
    00099    qx_bool isValidOwner(void * pOwner, T * dummy) const
    00100    {
    00101       Q_UNUSED(dummy);
    00102       typedef boost::is_same<T, void> qx_verify_owner_tmp;
    00103       BOOST_STATIC_ASSERT(! qx_verify_owner_tmp::value);
    00104       if (! pOwner) { return qx_bool(false, 0, QX_FUNCTION_ERR_NULL_OWNER); }
    00105       if (! dynamic_cast<T *>(static_cast<T *>(pOwner))) { return qx_bool(false, 0, QX_FUNCTION_ERR_INVALID_OWNER); }
    00106       return true;
    00107    }
    00108
    00109    template <class T>
    00110    qx_bool isValid(const T & params) const
    00111    {
    00112       qx_bool bValid = isValidFct(); if (! bValid) { return bValid; };
    00113       bValid = isValidParams(params); if (! bValid) { return bValid; };
    00114       return true;
    00115    }
    00116
    00117    template <class T, class U>
    00118    qx_bool isValid(void * pOwner, const T & params, U * dummy) const
    00119    {
    00120       Q_UNUSED(dummy);
    00121       qx_bool bValid = isValidFct(); if (! bValid) { return bValid; };
    00122       bValid = isValidParams(params); if (! bValid) { return bValid; };
    00123       bValid = isValidOwner<U>(pOwner, NULL); if (! bValid) { return bValid; };
    00124       return true;
    00125    }
    00126
    00127 };
    00128
    00129 typedef boost::shared_ptr<IxFunction> IxFunction_ptr;
    00130 typedef QxCollection<QString, IxFunction_ptr> IxFunctionX;
    00131 typedef boost::shared_ptr<IxFunctionX> IxFunctionX_ptr;
    00132
    00133 } // namespace qx
    00134
    00135 #endif // _IX_FUNCTION_H_