function.hpp

来自「ncbi源码」· HPP 代码 · 共 190 行

/*
 * ===========================================================================
 * PRODUCTION $Log: function.hpp,v $
 * PRODUCTION Revision 1000.2  2004/04/16 16:53:42  gouriano
 * PRODUCTION PRODUCTION: UPGRADED [CATCHUP_003] Dev-tree R1.3
 * PRODUCTION
 * ===========================================================================
 */

#ifndef GUI_GUI___FUNCTION__HPP
#define GUI_GUI___FUNCTION__HPP

/*  $Id: function.hpp,v 1000.2 2004/04/16 16:53:42 gouriano Exp $
 * ===========================================================================
 *
 *                            PUBLIC DOMAIN NOTICE
 *               National Center for Biotechnology Information
 *
 *  This software/database is a "United States Government Work" under the
 *  terms of the United States Copyright Act.  It was written as part of
 *  the author's official duties as a United States Government employee and
 *  thus cannot be copyrighted.  This software/database is freely available
 *  to the public for use. The National Library of Medicine and the U.S.
 *  Government have not placed any restriction on its use or reproduction.
 *
 *  Although all reasonable efforts have been taken to ensure the accuracy
 *  and reliability of the software and data, the NLM and the U.S.
 *  Government do not and cannot warrant the performance or results that
 *  may be obtained by using this software or data. The NLM and the U.S.
 *  Government disclaim all warranties, express or implied, including
 *  warranties of performance, merchantability or fitness for any particular
 *  purpose.
 *
 *  Please cite the author in any work or product based on this material.
 *
 * ===========================================================================
 *
 * Authors:  Peter Meric
 *
 * File Description:
 *    Function classes
 */


#include <corelib/ncbiobj.hpp>


/** @addtogroup GUI_UTILS
 *
 * @{
 */


BEGIN_NCBI_SCOPE


class NCBI_GUIUTILS_EXPORT CFuncPtr : public CObject
{
public:
    void operator()()
    {
        Execute();
    }

    virtual void Execute(void) = 0;
};


template <typename T>
class NCBI_GUIUTILS_EXPORT CFuncPtrTmpl : public CFuncPtr
{
public:
    typedef void (T::*TMemFun)(void);

    CFuncPtrTmpl(T* objptr, TMemFun memfun)
        : m_ObjPtr(objptr), m_MemFun(memfun)
    {
    }

    void Execute(void)
    {
        (m_ObjPtr->*m_MemFun)();
    }

private:
    T* m_ObjPtr;
    TMemFun m_MemFun;
};



template <typename RetType, typename Arg1>
class NCBI_GUIUTILS_EXPORT CFuncPtr1 : public CObject
{
public:
    RetType operator()(Arg1 arg1)
    {
        return Execute(arg1);
    }

    virtual RetType Execute(Arg1 arg1) = 0;
};


template <typename T, typename RetType, typename Arg1>
class NCBI_GUIUTILS_EXPORT CFuncPtrTmpl1 : public CFuncPtr1<RetType, Arg1>
{
public:
    typedef RetType (T::*TMemFun)(Arg1);

    CFuncPtrTmpl1(T* objptr, TMemFun memfun)
        : m_ObjPtr(objptr), m_MemFun(memfun)
    {
    }


    RetType Execute(Arg1 arg1)
    {
        return (m_ObjPtr->*m_MemFun)(arg1);
    }

private:
    T* m_ObjPtr;
    TMemFun m_MemFun;
};

/*****************************************************************************/

template <typename Arg1>
class NCBI_GUIUTILS_EXPORT CVoidFuncPtr1 : public CObject
{
public:
    void operator()(Arg1 arg1)
    {
        Execute(arg1);
    }

    virtual void Execute(Arg1 arg1) = 0;
};


template <typename T, typename Arg1>
class NCBI_GUIUTILS_EXPORT CVoidFuncPtrTmpl1 : public CVoidFuncPtr1<Arg1>
{
public:
    typedef void (T::*TMemFun)(Arg1);

    CVoidFuncPtrTmpl1(T* objptr, TMemFun memfun)
        : m_ObjPtr(objptr), m_MemFun(memfun)
    {
    }


    void Execute(Arg1 arg1)
    {
        (m_ObjPtr->*m_MemFun)(arg1);
    }

private:
    T* m_ObjPtr;
    TMemFun m_MemFun;
};

END_NCBI_SCOPE

/* @} */


/*
 * ===========================================================================
 * $Log: function.hpp,v $
 * Revision 1000.2  2004/04/16 16:53:42  gouriano
 * PRODUCTION: UPGRADED [CATCHUP_003] Dev-tree R1.3
 *
 * Revision 1.3  2004/04/16 14:27:17  dicuccio
 * Added doxygen module tag
 *
 * Revision 1.2  2003/11/13 19:02:15  johnson
 * Added templates for void function w/ one arg -- MSVC fails if CFuncPtrTmpl1
 * is given a void return type.
 *
 * Revision 1.1  2003/09/02 19:20:29  meric
 * Initial version
 *
 * ===========================================================================
 */


#endif // GUI_GUI___FUNCTION__HPP