callbackwrapper.h

// SPDX-FileCopyrightText: Copyright (C) 2014 swift Project Community / Contributors
// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-swift-pilot-client-1
 
#ifndef SWIFT_SIMPLUGIN_FS9_CALLBACK_WRAPPER_H
#define SWIFT_SIMPLUGIN_FS9_CALLBACK_WRAPPER_H
 
#include <dplay8.h>
 
#include <functional>
 
#include <QObject>
#include <QPointer>
 
namespace swift::simplugin::fs9
{
    template <class Object, class ReturnType, class Argument1, class Argument2>
    struct CallbackWrapper
    {
        using MemberFunction = ReturnType (Object::*)(Argument1, Argument2);
 
        CallbackWrapper(Object *obj, MemberFunction memberFunction) : m_object(obj), m_memberFunction(memberFunction) {}
 
        static ReturnType WINAPI messageHandler(void *userContext, Argument1 arg1, Argument2 arg2)
        {
            CallbackWrapper *_this = static_cast<CallbackWrapper *>(userContext);
            Object *obj = _this->m_object;
            MemberFunction func = _this->m_memberFunction;
            ReturnType result = (obj->*func)(arg1, arg2);
            return result;
        }
 
    private:
        QPointer<Object> m_object;
        MemberFunction m_memberFunction;
    };
} // namespace swift::simplugin::fs9
 
#endif // SWIFT_SIMPLUGIN_FS9_CALLBACK_WRAPPER_H