File indexing completed on 2024-05-05 04:48:47 

0001 /****************************************************************************************
0002  * Copyright (c) 2008-2010 Soren Harward <stharward@gmail.com>                          *
0003  *                                                                                      *
0004  * This program is free software; you can redistribute it and/or modify it under        *
0005  * the terms of the GNU General Public License as published by the Free Software        *
0006  * Foundation; either version 2 of the License, or (at your option) any later           *
0007  * version.                                                                             *
0008  *                                                                                      *
0009  * This program is distributed in the hope that it will be useful, but WITHOUT ANY      *
0010  * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A      *
0011  * PARTICULAR PURPOSE. See the GNU General Public License for more details.             *
0012  *                                                                                      *
0013  * You should have received a copy of the GNU General Public License along with         *
0014  * this program.  If not, see <http://www.gnu.org/licenses/>.                           *
0015  ****************************************************************************************/
0016 
0017 #ifndef APG_CONSTRAINT_FACTORY
0018 #define APG_CONSTRAINT_FACTORY
0019 
0020 #include <QDomElement>
0021 #include <QHash>
0022 #include <QPair>
0023 #include <QString>
0024 #include <QStringList>
0025 
0026 #include <climits>
0027 
0028 class Constraint;
0029 class ConstraintNode;
0030 
0031 class ConstraintFactoryEntry {
0032     public:
0033         friend class ConstraintFactory;
0034         ConstraintFactoryEntry(const QString&,
0035                                const QString&,
0036                                const QString&,
0037                                Constraint* (*xmlf)(QDomElement&, ConstraintNode*),
0038                                Constraint* (*nf)(ConstraintNode*));
0039 
0040     private:
0041         const QString m_name;
0042         const QString m_i18nName;
0043         const QString m_description;
0044         Constraint* (*m_createFromXmlFunc)(QDomElement&, ConstraintNode*);
0045         Constraint* (*m_createNewFunc)(ConstraintNode*);
0046 };
0047 
0048 class ConstraintFactory {
0049     public:
0050         static ConstraintFactory* instance();
0051         static void destroy();
0052         ~ConstraintFactory();
0053 
0054         // row is set to INT_MAX so that children are appended by default
0055         ConstraintNode* createConstraint(QDomElement&, ConstraintNode*, int row=INT_MAX) const;
0056         ConstraintNode* createConstraint(const QString&, ConstraintNode*, int row=INT_MAX) const;
0057         ConstraintNode* createConstraint(const int, ConstraintNode*, int row=INT_MAX) const;
0058 
0059         ConstraintNode* createGroup(QDomElement&, ConstraintNode*, int row=INT_MAX) const;
0060         ConstraintNode* createGroup(ConstraintNode*, int row=INT_MAX) const;
0061 
0062         const QStringList names() const;
0063         const QStringList i18nNames() const;
0064         QList< QPair<int, QString> > registeredConstraints() const;
0065         const QString untranslateName( const QString& ) const;
0066 
0067     private:
0068         ConstraintFactory();
0069 
0070         static ConstraintFactory* s_self;
0071         QHash<int, ConstraintFactoryEntry*> m_registryIds;
0072         QHash<QString, ConstraintFactoryEntry*> m_registryNames;
0073         QHash<QString, QString> m_registryUntranslateNames;
0074 };
0075 
0076 #endif // APG_CONSTRAINT_FACTORY