File indexing completed on 2024-05-12 04:04:32

 /*
     Copyright 2010 Stefan Majewsky <majewsky@gmx.net>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 2 of the License, or
     (at your option) any later version.
 
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
 
     You should have received a copy of the GNU General Public License
     along with this program; if not, write to the Free Software
     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */
 
 #ifndef KOLF_ITEMFACTORY_H
 #define KOLF_ITEMFACTORY_H
 
 #include <QGraphicsItem>
 class b2World;
 
 namespace Kolf
 {
     struct ItemMetadata
     {
         QString identifier, name;
         bool addOnNewHole;
     };
 
     //This class registers maps identifiers and other metadata to QGraphicsItem subclasses, and is able to create item instances as needed.
     class ItemFactory
     {
         public:
             QList<Kolf::ItemMetadata> knownTypes() const;
             QGraphicsItem* createInstance(const QString& identifier, QGraphicsItem* parent, b2World* world) const;
 
             template<typename T> void registerType(const QString& identifier, const QString& name, bool addOnNewHole = false)
             {
                 const Kolf::ItemMetadata metadata = { identifier, name, addOnNewHole };
                 registerType(metadata, &Kolf::ItemFactory::create<T>);
             }
         private:
             typedef QGraphicsItem* (*ItemCreator)(QGraphicsItem* parent, b2World* world);
             void registerType(const Kolf::ItemMetadata& metadata, ItemCreator creator);
             template<typename T> static QGraphicsItem* create(QGraphicsItem* parent, b2World* world)
             {
                 return new T(parent, world);
             }
         private:
             typedef QPair<Kolf::ItemMetadata, ItemCreator> Entry;
             QList<Entry> m_entries;
     };
 }
 
 #endif // KOLF_ITEMFACTORY_H