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/****************************************************************************
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** Copyright (C) 1992-2005 Trolltech AS. All rights reserved.
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** This file is part of the designer application of the Qt Toolkit.
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** This file may be distributed under the terms of the Q Public License
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** as defined by Trolltech AS of Norway and appearing in the file
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** LICENSE.QPL included in the packaging of this file.
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** This file may be distributed and/or modified under the terms of the
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** GNU General Public License version 2 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file.
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** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
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** information about Qt Commercial License Agreements.
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** See http://www.trolltech.com/qpl/ for QPL licensing information.
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** See http://www.trolltech.com/gpl/ for GPL licensing information.
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** Contact info@trolltech.com if any conditions of this licensing are
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** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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****************************************************************************/
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#include <QtCore/QString>
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#include <QtCore/QObject>
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#define Q_TYPEID(IFace) QLatin1String(IFace##_iid)
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class QAbstractExtensionFactory
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virtual ~QAbstractExtensionFactory() {}
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virtual QObject *extension(QObject *object, const QString &iid) const = 0;
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Q_DECLARE_INTERFACE(QAbstractExtensionFactory, "com.trolltech.Qt.QAbstractExtensionFactory")
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class QAbstractExtensionManager
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virtual ~QAbstractExtensionManager() {}
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virtual void registerExtensions(QAbstractExtensionFactory *factory, const QString &iid) = 0;
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virtual void unregisterExtensions(QAbstractExtensionFactory *factory, const QString &iid) = 0;
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virtual QObject *extension(QObject *object, const QString &iid) const = 0;
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Q_DECLARE_INTERFACE(QAbstractExtensionManager, "com.trolltech.Qt.QAbstractExtensionManager")
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#if defined(Q_CC_MSVC) && (_MSC_VER < 1300)
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inline T qt_extension_helper(QAbstractExtensionManager *, QObject *, T)
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inline T qt_extension(QAbstractExtensionManager* manager, QObject *object)
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{ return qt_extension_helper(manager, object, T(0)); }
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#define Q_DECLARE_EXTENSION_INTERFACE(IFace, IId) \
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const char * const IFace##_iid = IId; \
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Q_DECLARE_INTERFACE(IFace, IId) \
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template <> inline IFace *qt_extension_helper<IFace *>(QAbstractExtensionManager *manager, QObject *object, IFace *) \
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{ QObject *extension = manager->extension(object, Q_TYPEID(IFace)); return (IFace *)(extension ? extension->qt_metacast(IFace##_iid) : 0); }
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inline T qt_extension(QAbstractExtensionManager* manager, QObject *object)
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#define Q_DECLARE_EXTENSION_INTERFACE(IFace, IId) \
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const char * const IFace##_iid = IId; \
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Q_DECLARE_INTERFACE(IFace, IId) \
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template <> inline IFace *qt_extension<IFace *>(QAbstractExtensionManager *manager, QObject *object) \
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{ QObject *extension = manager->extension(object, Q_TYPEID(IFace)); return extension ? static_cast<IFace *>(extension->qt_metacast(IFace##_iid)) : static_cast<IFace *>(0); }