src/plugins/gacts/3rdparty/qxt/qxtglobal.h
/****************************************************************************
 **
 ** Copyright (C) Qxt Foundation. Some rights reserved.
 **
 ** This file is part of the QxtCore module of the Qxt library.
 **
 ** This library is free software; you can redistribute it and/or modify it
 ** under the terms of the Common Public License, version 1.0, as published
 ** by IBM, and/or under the terms of the GNU Lesser General Public License,
 ** version 2.1, as published by the Free Software Foundation.
 **
 ** This file is provided "AS IS", without WARRANTIES OR CONDITIONS OF ANY
 ** KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT LIMITATION, ANY
 ** WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY OR
 ** FITNESS FOR A PARTICULAR PURPOSE.
 **
 ** You should have received a copy of the CPL and the LGPL along with this
 ** file. See the LICENSE file and the cpl1.0.txt/lgpl-2.1.txt files
 ** included with the source distribution for more information.
 ** If you did not receive a copy of the licenses, contact the Qxt Foundation.
 **
 ** <http://libqxt.org>  <foundation@libqxt.org>
 **
 ****************************************************************************/

#ifndef QXTGLOBAL_H
#define QXTGLOBAL_H

#include <QtGlobal>

/****************************************************************************
** This file is derived from code bearing the following notice:
** The sole author of this file, Adam Higerd, has explicitly disclaimed all
** copyright interest and protection for the content within. This file has
** been placed in the public domain according to United States copyright
** statute and case law. In jurisdictions where this public domain dedication
** is not legally recognized, anyone who receives a copy of this file is
** permitted to use, modify, duplicate, and redistribute this file, in whole
** or in part, with no restrictions or conditions. In these jurisdictions,
** this file shall be copyright (C) 2006-2008 by Adam Higerd.
****************************************************************************/

#define QXT_DECLARE_PRIVATE(PUB) friend class PUB##Private; QxtPrivateInterface<PUB, PUB##Private> qxt_d;
#define QXT_DECLARE_PUBLIC(PUB) friend class PUB;
#define QXT_INIT_PRIVATE(PUB) qxt_d.setPublic(this);

template <typename PUB>
class QxtPrivate
{
public:
    virtual ~QxtPrivate()
    {}
    inline void QXT_setPublic(PUB* pub)
    {
        qxt_p_ptr = pub;
    }

protected:
    inline PUB& qxt_p()
    {
        return *qxt_p_ptr;
    }
    inline const PUB& qxt_p() const
    {
        return *qxt_p_ptr;
    }

private:
    PUB* qxt_p_ptr;
};

template <typename PUB, typename PVT>
class QxtPrivateInterface
{
    friend class QxtPrivate<PUB>;
public:
    QxtPrivateInterface()
    {
        pvt = new PVT;
    }
    ~QxtPrivateInterface()
    {
        delete pvt;
    }

    inline void setPublic(PUB* pub)
    {
        pvt->QXT_setPublic(pub);
    }
    inline PVT& operator()()
    {
        return *static_cast<PVT*>(pvt);
    }
    inline const PVT& operator()() const
    {
        return *static_cast<PVT*>(pvt);
    }
private:
    QxtPrivateInterface(const QxtPrivateInterface&) { }
    QxtPrivateInterface& operator=(const QxtPrivateInterface&) { }
    QxtPrivate<PUB>* pvt;
};

#endif // QXT_GLOBAL
