| 1 | /****************************************************************************
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| 2 | **
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| 3 | ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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| 4 | ** Contact: Qt Software Information ([email protected])
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| 5 | **
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| 6 | ** This file is part of the QtCore module of the Qt Toolkit.
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| 7 | **
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| 8 | ** $QT_BEGIN_LICENSE:LGPL$
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| 9 | ** Commercial Usage
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| 10 | ** Licensees holding valid Qt Commercial licenses may use this file in
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| 11 | ** accordance with the Qt Commercial License Agreement provided with the
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| 12 | ** Software or, alternatively, in accordance with the terms contained in
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| 13 | ** a written agreement between you and Nokia.
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| 14 | **
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| 15 | ** GNU Lesser General Public License Usage
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| 16 | ** Alternatively, this file may be used under the terms of the GNU Lesser
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| 17 | ** General Public License version 2.1 as published by the Free Software
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| 18 | ** Foundation and appearing in the file LICENSE.LGPL included in the
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| 19 | ** packaging of this file. Please review the following information to
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| 20 | ** ensure the GNU Lesser General Public License version 2.1 requirements
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| 21 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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| 22 | **
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| 23 | ** In addition, as a special exception, Nokia gives you certain
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| 24 | ** additional rights. These rights are described in the Nokia Qt LGPL
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| 25 | ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
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| 26 | ** package.
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| 27 | **
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| 28 | ** GNU General Public License Usage
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| 29 | ** Alternatively, this file may be used under the terms of the GNU
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| 30 | ** General Public License version 3.0 as published by the Free Software
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| 31 | ** Foundation and appearing in the file LICENSE.GPL included in the
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| 32 | ** packaging of this file. Please review the following information to
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| 33 | ** ensure the GNU General Public License version 3.0 requirements will be
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| 34 | ** met: http://www.gnu.org/copyleft/gpl.html.
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| 35 | **
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| 36 | ** If you are unsure which license is appropriate for your use, please
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| 37 | ** contact the sales department at [email protected].
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| 38 | ** $QT_END_LICENSE$
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| 39 | **
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| 40 | ****************************************************************************/
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| 41 |
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| 42 | #ifndef QPLUGIN_H
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| 43 | #define QPLUGIN_H
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| 44 |
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| 45 | #include <QtCore/qobject.h>
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| 46 | #include <QtCore/qpointer.h>
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| 47 |
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| 48 | QT_BEGIN_HEADER
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| 49 |
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| 50 | QT_BEGIN_NAMESPACE
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| 51 |
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| 52 | QT_MODULE(Core)
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| 53 |
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| 54 | #ifndef Q_EXTERN_C
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| 55 | # ifdef __cplusplus
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| 56 | # define Q_EXTERN_C extern "C"
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| 57 | # else
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| 58 | # define Q_EXTERN_C extern
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| 59 | # endif
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| 60 | #endif
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| 61 |
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| 62 | typedef QObject *(*QtPluginInstanceFunction)();
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| 63 |
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| 64 | void Q_CORE_EXPORT qRegisterStaticPluginInstanceFunction(QtPluginInstanceFunction function);
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| 65 |
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| 66 | #define Q_IMPORT_PLUGIN(PLUGIN) \
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| 67 | extern QT_PREPEND_NAMESPACE(QObject) *qt_plugin_instance_##PLUGIN(); \
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| 68 | class Static##PLUGIN##PluginInstance{ \
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| 69 | public: \
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| 70 | Static##PLUGIN##PluginInstance() { \
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| 71 | qRegisterStaticPluginInstanceFunction(qt_plugin_instance_##PLUGIN); \
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| 72 | } \
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| 73 | }; \
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| 74 | static Static##PLUGIN##PluginInstance static##PLUGIN##Instance;
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| 75 |
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| 76 | #define Q_PLUGIN_INSTANCE(IMPLEMENTATION) \
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| 77 | { \
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| 78 | static QT_PREPEND_NAMESPACE(QPointer)<QT_PREPEND_NAMESPACE(QObject)> _instance; \
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| 79 | if (!_instance) \
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