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author | Lars Knoll <lars.knoll@nokia.com> | 2009-03-23 09:34:13 (GMT) |
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committer | Simon Hausmann <simon.hausmann@nokia.com> | 2009-03-23 09:34:13 (GMT) |
commit | 67ad0519fd165acee4a4d2a94fa502e9e4847bd0 (patch) | |
tree | 1dbf50b3dff8d5ca7e9344733968c72704eb15ff /src/corelib/plugin/qplugin.h | |
download | Qt-67ad0519fd165acee4a4d2a94fa502e9e4847bd0.zip Qt-67ad0519fd165acee4a4d2a94fa502e9e4847bd0.tar.gz Qt-67ad0519fd165acee4a4d2a94fa502e9e4847bd0.tar.bz2 |
Long live Qt!
Diffstat (limited to 'src/corelib/plugin/qplugin.h')
-rw-r--r-- | src/corelib/plugin/qplugin.h | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/src/corelib/plugin/qplugin.h b/src/corelib/plugin/qplugin.h new file mode 100644 index 0000000..4d0e53c --- /dev/null +++ b/src/corelib/plugin/qplugin.h @@ -0,0 +1,141 @@ +/**************************************************************************** +** +** Copyright (C) 2009 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. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#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) \ + 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"\0"; + +# if defined (Q_OS_WIN32) && defined(Q_CC_BOR) +# define Q_STANDARD_CALL __stdcall +# else +# define Q_STANDARD_CALL +# endif + +# define Q_EXPORT_PLUGIN2(PLUGIN, PLUGINCLASS) \ + Q_PLUGIN_VERIFICATION_DATA \ + Q_EXTERN_C Q_DECL_EXPORT \ + const char * Q_STANDARD_CALL qt_plugin_query_verification_data() \ + { return qt_plugin_verification_data; } \ + Q_EXTERN_C Q_DECL_EXPORT QT_PREPEND_NAMESPACE(QObject) * Q_STANDARD_CALL qt_plugin_instance() \ + Q_PLUGIN_INSTANCE(PLUGINCLASS) + +# define Q_EXPORT_STATIC_PLUGIN2(PLUGIN, PLUGINCLASS) + +#endif + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif // Q_PLUGIN_H |