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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Copyright (C) 2019 Luxoft Sweden AB
** Copyright (C) 2018 Pelagicore AG
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtInterfaceFramework module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QIFSERVICEINTERFACE_H
#define QIFSERVICEINTERFACE_H
#include <QtInterfaceFramework/qiffeatureinterface.h>
#include <QtInterfaceFramework/qtifglobal.h>
#include <QtCore/QtPlugin>
QT_BEGIN_NAMESPACE
template <class T> T qif_interface_cast(QObject *backend)
{
T inst = qobject_cast<T>(backend);
static bool showOnce = true;
if (!inst && showOnce) {
typedef typename std::remove_cv<typename std::remove_pointer<T>::type>::type ObjType;
qCritical("Casting the backend to the interface %s failed.\n"
"Either the backend pointer is not of the correct type or casting failed because "
"debug and release libraries were mixed.", ObjType::staticMetaObject.className());
showOnce = false;
}
return inst;
}
class Q_QTINTERFACEFRAMEWORK_EXPORT QIfServiceInterface
{
public:
virtual ~QIfServiceInterface();
virtual QStringList interfaces() const = 0;
virtual QIfFeatureInterface *interfaceInstance(const QString &interfaceName) const = 0;
template <class T> T interfaceInstance(const QString &interfaceName) const {
T inst = qif_interface_cast<T>(interfaceInstance(interfaceName));
return inst;
}
};
#define QIfServiceInterface_iid "org.qt-project.interfaceframework.QIfServiceInterface/1.0"
Q_DECLARE_INTERFACE(QIfServiceInterface, QIfServiceInterface_iid)
QT_END_NAMESPACE
Q_DECLARE_METATYPE(QIfServiceInterface*)
#endif // QIFSERVICEINTERFACE_H
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