00001 /**************************************************************************** 00002 ** 00003 ** Copyright (C) 2009-10 Nokia Corporation and/or its subsidiary(-ies). 00004 ** Contact: Alexander Bokovoy <alexander.bokovoy@nokia.com> 00005 ** 00006 ** This file is part of the Quill Image Filters package. 00007 ** 00008 ** Commercial Usage 00009 ** Licensees holding valid Qt Commercial licenses may use this file in 00010 ** accordance with the Qt Commercial License Agreement provided with the 00011 ** Software or, alternatively, in accordance with the terms contained in 00012 ** a written agreement between you and Nokia. 00013 ** 00014 ** GNU Lesser General Public License Usage 00015 ** Alternatively, this file may be used under the terms of the GNU Lesser 00016 ** General Public License version 2.1 as published by the Free Software 00017 ** Foundation and appearing in the file LICENSE.LGPL included in the 00018 ** packaging of this file. Please review the following information to 00019 ** ensure the GNU Lesser General Public License version 2.1 requirements 00020 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. 00021 ** 00022 ** In addition, as a special exception, Nokia gives you certain 00023 ** additional rights. These rights are described in the Nokia Qt LGPL 00024 ** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this 00025 ** package. 00026 ** 00027 ** GNU General Public License Usage 00028 ** Alternatively, this file may be used under the terms of the GNU 00029 ** General Public License version 3.0 as published by the Free Software 00030 ** Foundation and appearing in the file LICENSE.GPL included in the 00031 ** packaging of this file. Please review the following information to 00032 ** ensure the GNU General Public License version 3.0 requirements will be 00033 ** met: http://www.gnu.org/copyleft/gpl.html. 00034 ** 00035 ** If you are unsure which license is appropriate for your use, please 00036 ** contact the sales department at qt-sales@nokia.com. 00037 ** 00038 ****************************************************************************/ 00039 00040 #ifndef __PLUGIN_LOADER_H__ 00041 #define __PLUGIN_LOADER_H__ 00042 00043 #include "quillimagefilterinterface.h" 00044 #include <QString> 00045 00046 class PluginLoader 00047 { 00048 public: 00049 static QuillImageFilterInterface *instance(const QString &name); 00050 static QuillImageFilterInterface *instance(QuillImageFilter::QuillFilterRole role); 00051 00052 private: 00053 static void update(const QString &name); 00054 static void update(const QuillImageFilter::QuillFilterRole role); 00055 static void searchLibrary(const QuillImageFilter::QuillFilterRole role); 00056 static void searchLibrary(const QString &name); 00057 static void loadLibrary(const QString &name); 00058 static void findLibraryPath(); 00059 00060 private: 00061 static QMap<QString, QuillImageFilterInterface*> m_plugins; 00062 static QMap<QuillImageFilter::QuillFilterRole, QuillImageFilterInterface*> m_pluginsByRole; 00063 static QString filterRole; 00064 static QStringList paths; 00065 static QStringList pluginAbsolutePaths; 00066 static QStringList loadedAbsolutePaths; 00067 static const QLatin1String defaultFilterName; 00068 static const QLatin1String quillImageFilterPluginDir; 00069 00070 }; 00071 00072 #endif //__PLUGIN_LOADER_H__