/usr/include/qt5/QtDesigner/extension.h is in qttools5-dev 5.2.1-8build1.
This file is owned by root:root, with mode 0o644.
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**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Designer 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef EXTENSION_H
#define EXTENSION_H
#include <QtCore/QString>
#include <QtCore/QObject>
QT_BEGIN_NAMESPACE
#define Q_TYPEID(IFace) QLatin1String(IFace##_iid)
class QAbstractExtensionFactory
{
public:
virtual ~QAbstractExtensionFactory() {}
virtual QObject *extension(QObject *object, const QString &iid) const = 0;
};
Q_DECLARE_INTERFACE(QAbstractExtensionFactory, "org.qt-project.Qt.QAbstractExtensionFactory")
class QAbstractExtensionManager
{
public:
virtual ~QAbstractExtensionManager() {}
virtual void registerExtensions(QAbstractExtensionFactory *factory, const QString &iid) = 0;
virtual void unregisterExtensions(QAbstractExtensionFactory *factory, const QString &iid) = 0;
virtual QObject *extension(QObject *object, const QString &iid) const = 0;
};
Q_DECLARE_INTERFACE(QAbstractExtensionManager, "org.qt-project.Qt.QAbstractExtensionManager")
#if defined(Q_CC_MSVC) && (_MSC_VER < 1300)
template <class T>
inline T qt_extension_helper(QAbstractExtensionManager *, QObject *, T)
{ return 0; }
template <class T>
inline T qt_extension(QAbstractExtensionManager* manager, QObject *object)
{ return qt_extension_helper(manager, object, T(0)); }
#define Q_DECLARE_EXTENSION_INTERFACE(IFace, IId) \
const char * const IFace##_iid = IId; \
Q_DECLARE_INTERFACE(IFace, IId) \
template <> inline IFace *qt_extension_helper<IFace *>(QAbstractExtensionManager *manager, QObject *object, IFace *) \
{ QObject *extension = manager->extension(object, Q_TYPEID(IFace)); return (IFace *)(extension ? extension->qt_metacast(IFace##_iid) : 0); }
#else
template <class T>
inline T qt_extension(QAbstractExtensionManager *, QObject *)
{ return 0; }
#define Q_DECLARE_EXTENSION_INTERFACE(IFace, IId) \
const char * const IFace##_iid = IId; \
Q_DECLARE_INTERFACE(IFace, IId) \
template <> inline IFace *qt_extension<IFace *>(QAbstractExtensionManager *manager, QObject *object) \
{ QObject *extension = manager->extension(object, Q_TYPEID(IFace)); return extension ? static_cast<IFace *>(extension->qt_metacast(IFace##_iid)) : static_cast<IFace *>(0); }
#endif
QT_END_NAMESPACE
#endif // EXTENSION_H
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