private.h

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/*
 * Copyright (C) 2002 The gtkmm Development Team
 * Copyright (C) 2026 Robin Gareus <robin@gareus.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
#pragma once
 
#include <glib.h>
 
#include "pbd/libpbd_visibility.h"
 
namespace PBD
{
 
template <class T>
class Private
{
public:
        typedef void (*DestructorFunc) (void*);
 
        static void delete_ptr (void* data)
        {
                delete static_cast<T*> (data);
        }
 
        explicit inline Private (DestructorFunc destructor_func = &Private<T>::delete_ptr)
        {
                const GPrivate temp = G_PRIVATE_INIT (destructor_func);
                _gobjext            = temp;
        }
 
        inline T* get ()
        {
                return static_cast<T*> (g_private_get (&_gobjext));
        }
 
        inline void set (T* data)
        {
                g_private_set (&_gobjext, data);
        }
 
        inline void replace (T* data)
        {
                g_private_replace (&_gobjext, data);
        }
 
private:
        Private (Private<T> const&)               = delete;
        Private<T>& operator= (Private<T> const&) = delete;
 
        GPrivate _gobjext;
};
 
} // namespace PBD