00001 /*************************************************************************** 00002 ** 00003 ** This file is part of QGpCoreTools. 00004 ** 00005 ** This library is free software; you can redistribute it and/or 00006 ** modify it under the terms of the GNU Lesser General Public 00007 ** License as published by the Free Software Foundation; either 00008 ** version 2.1 of the License, or (at your option) any later version. 00009 ** 00010 ** This file is distributed in the hope that it will be useful, but WITHOUT 00011 ** ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 00012 ** FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 00013 ** License for more details. 00014 ** 00015 ** You should have received a copy of the GNU Lesser General Public 00016 ** License along with this library; if not, write to the Free Software 00017 ** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00018 ** 00019 ** See http://www.geopsy.org for more information. 00020 ** 00021 ** Created : 2004-11-27 00022 ** Authors : 00023 ** Marc Wathelet 00024 ** Marc Wathelet (ULg, Liège, Belgium) 00025 ** Marc Wathelet (LGIT, Grenoble, France) 00026 ** 00027 ***************************************************************************/ 00028 00029 #ifndef XMLCLASSFACTORY_H 00030 #define XMLCLASSFACTORY_H 00031 00032 #include <QtCore> 00033 00034 #include "CoreApplication.h" 00035 #include "QGpCoreToolsDLLExport.h" 00036 00037 namespace QGpCoreTools { 00038 00039 class XMLClass; 00040 class XMLClassCreator; 00041 00042 class QGPCORETOOLS_EXPORT XMLClassFactory 00043 { 00044 public: 00045 XMLClassFactory() {_nextId=0;} 00046 ~XMLClassFactory(); 00047 00048 int id(const QString& tag) const; 00049 XMLClass * create(const QString& tag) const; 00050 XMLClass * create(int id) const; 00051 XMLClassCreator * creator(const QString& tag) const; 00052 XMLClassCreator * creator(int id) const; 00053 00054 QStringList registeredTags() const; 00055 QList<int> registeredIds() const; 00056 00057 int registerClass(const QString& tag, XMLClassCreator * creator); 00058 void registerTag(const QString& tag, int id); 00059 void registerTag(const QString& tag, const QString& destTag); 00060 00061 static void registerFactory(XMLClassFactory * f); 00062 static void clearFactories(); 00063 protected: 00064 int newId() {return _nextId++;} 00065 private: 00066 QMap<int, XMLClassCreator *> _registeredClasses; 00067 QMap<QString, int> _registeredTags; 00068 int _nextId; 00069 00070 static QList<XMLClassFactory *> _factories; 00071 }; 00072 00073 class QGPCORETOOLS_EXPORT XMLClassCreator 00074 { 00075 public: 00076 virtual ~XMLClassCreator() {} 00077 00078 virtual XMLClass * create() const=0; 00079 }; 00080 00081 #define XMLREGISTER_HEAD(_factory_, _creator_, _className_, _tagName_) \ 00082 class _className_##XMLClassCreator : public _creator_ \ 00083 { \ 00084 public: \ 00085 _className_##XMLClassCreator() \ 00086 { \ 00087 _factory_::init(); \ 00088 _factory_::instance()->registerClass(_tagName_, this); \ 00089 } 00090 00091 00092 #define XMLREGISTER_TAIL(_className_) \ 00093 private: \ 00094 virtual XMLClass * create() const {return new _className_;} \ 00095 }; \ 00096 _className_##XMLClassCreator register##_className_; 00097 00098 #define XMLSYNONYM(_factory_, _synName_, _tagName_) \ 00099 class _synName_##XMLClassSynonym \ 00100 { \ 00101 public: \ 00102 _synName_##XMLClassSynonym() { \ 00103 _factory_::instance()->registerTag(# _synName_, _tagName_); \ 00104 } \ 00105 }; \ 00106 _synName_##XMLClassSynonym register##_synName_; 00107 00108 } // namespace QGpCoreTools 00109 00110 #endif // XMLCLASSFACTORY_H
