qplugin.h
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上传日期:2022-06-22
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- /****************************************************************************
- **
- ** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies).
- ** Contact: Qt Software Information (qt-info@nokia.com)
- **
- ** This file is part of the QtCore module of the Qt Toolkit.
- **
- ** Commercial Usage
- ** Licensees holding valid Qt Commercial licenses may use this file in
- ** accordance with the Qt Commercial License Agreement provided with the
- ** Software or, alternatively, in accordance with the terms contained in
- ** a written agreement between you and Nokia.
- **
- **
- ** GNU General Public License Usage
- ** Alternatively, this file may be used under the terms of the GNU
- ** General Public License versions 2.0 or 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 GNU General Public Licensing requirements will be met:
- ** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
- ** http://www.gnu.org/copyleft/gpl.html. In addition, as a special
- ** exception, Nokia gives you certain additional rights. These rights
- ** are described in the Nokia Qt GPL Exception version 1.3, included in
- ** the file GPL_EXCEPTION.txt in this package.
- **
- ** Qt for Windows(R) Licensees
- ** As a special exception, Nokia, as the sole copyright holder for Qt
- ** Designer, grants users of the Qt/Eclipse Integration plug-in the
- ** right for the Qt/Eclipse Integration to link to functionality
- ** provided by Qt Designer and its related libraries.
- **
- ** If you are unsure which license is appropriate for your use, please
- ** contact the sales department at qt-sales@nokia.com.
- **
- ****************************************************************************/
- #ifndef QPLUGIN_H
- #define QPLUGIN_H
- #include <QtCore/qobject.h>
- #include <QtCore/qpointer.h>
- QT_BEGIN_HEADER
- QT_BEGIN_NAMESPACE
- QT_MODULE(Core)
- #ifndef Q_EXTERN_C
- # ifdef __cplusplus
- # define Q_EXTERN_C extern "C"
- # else
- # define Q_EXTERN_C extern
- # endif
- #endif
- typedef QObject *(*QtPluginInstanceFunction)();
- void Q_CORE_EXPORT qRegisterStaticPluginInstanceFunction(QtPluginInstanceFunction function);
- #define Q_IMPORT_PLUGIN(PLUGIN)
- extern QT_PREPEND_NAMESPACE(QObject) *qt_plugin_instance_##PLUGIN();
- class Static##PLUGIN##PluginInstance{
- public:
- Static##PLUGIN##PluginInstance() {
- qRegisterStaticPluginInstanceFunction(qt_plugin_instance_##PLUGIN);
- }
- };
- static Static##PLUGIN##PluginInstance static##PLUGIN##Instance;
- #define Q_PLUGIN_INSTANCE(IMPLEMENTATION)
- {
- static QT_PREPEND_NAMESPACE(QPointer)<QT_PREPEND_NAMESPACE(QObject)> _instance;
- if (!_instance)
- _instance = new IMPLEMENTATION;
- return _instance;
- }
- # define Q_EXPORT_PLUGIN(PLUGIN)
- Q_EXPORT_PLUGIN2(PLUGIN, PLUGIN)
- # define Q_EXPORT_STATIC_PLUGIN(PLUGIN)
- Q_EXPORT_STATIC_PLUGIN2(PLUGIN, PLUGIN)
- #if defined(QT_STATICPLUGIN)
- # define Q_EXPORT_PLUGIN2(PLUGIN, PLUGINCLASS)
- Q_DECL_EXPORT QT_PREPEND_NAMESPACE(QObject)
- *qt_plugin_instance_##PLUGIN()
- Q_PLUGIN_INSTANCE(PLUGINCLASS)
- # define Q_EXPORT_STATIC_PLUGIN2(PLUGIN, PLUGINCLASS)
- Q_EXPORT_PLUGIN2(PLUGIN, PLUGINCLASS)
- #else
- // NOTE: if you change pattern, you MUST change the pattern in
- // qlibrary.cpp as well. changing the pattern will break all
- // backwards compatibility as well (no old plugins will be loaded).
- # ifdef QPLUGIN_DEBUG_STR
- # undef QPLUGIN_DEBUG_STR
- # endif
- # ifdef QT_NO_DEBUG
- # define QPLUGIN_DEBUG_STR "false"
- # else
- # define QPLUGIN_DEBUG_STR "true"
- # endif
- # define Q_PLUGIN_VERIFICATION_DATA
- static const char *qt_plugin_verification_data =
- "pattern=""QT_PLUGIN_VERIFICATION_DATA""n"
- "version="QT_VERSION_STR"n"
- "debug="QPLUGIN_DEBUG_STR"n"
- "buildkey="QT_BUILD_KEY"