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0001 /* This file is part of the KDE project
0002  * Copyright (c) 2009 Jan Hambrecht <jaham@gmx.net>
0003  *
0004  * This library is free software; you can redistribute it and/or
0005  * modify it under the terms of the GNU Lesser General Public
0006  * License as published by the Free Software Foundation; either
0007  * version 2.1 of the License, or (at your option) any later version.
0008  *
0009  * This library is distributed in the hope that it will be useful,
0010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
0011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
0012  * Library General Public License for more details.
0013  *
0014  * You should have received a copy of the GNU Lesser General Public License
0015  * along with this library; see the file COPYING.LIB.  If not, write to
0016  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
0017  * Boston, MA 02110-1301, USA.
0018  */
0019 
0020 #ifndef KOFILTEREFFECTREGISTRY_H
0021 #define KOFILTEREFFECTREGISTRY_H
0022 
0023 #include <KoGenericRegistry.h>
0024 #include <KoFilterEffectFactoryBase.h>
0025 
0026 #include "flake_export.h"
0027 
0028 class KoXmlElement;
0029 class KoFilterEffectLoadingContext;
0030 
0031 class FLAKE_EXPORT KoFilterEffectRegistry : public KoGenericRegistry<KoFilterEffectFactoryBase*>
0032 {
0033 public:
0034     KoFilterEffectRegistry();
0035     ~KoFilterEffectRegistry() override;
0036 
0037     /**
0038     * Return the only instance of KoFilterEffectRegistry.
0039     * Creates an instance on the first call.
0040     */
0041     static KoFilterEffectRegistry *instance();
0042 
0043     /**
0044      * Creates filter effect from given xml element.
0045      * @param element the xml element to load form
0046      * @param context the loading context
0047      * @return the created filter effect if successful, otherwise returns 0
0048      */
0049     KoFilterEffect *createFilterEffectFromXml(const KoXmlElement &element, const KoFilterEffectLoadingContext &context);
0050 
0051 private:
0052 
0053     KoFilterEffectRegistry(const KoFilterEffectRegistry&);
0054     KoFilterEffectRegistry operator=(const KoFilterEffectRegistry&);
0055     void init();
0056 
0057     class Private;
0058     Private * const d;
0059 };
0060 
0061 #endif // KOFILTEREFFECTREGISTRY_H