libs/flake/KoFilterEffectRegistry.cpp

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 #include "KoFilterEffectRegistry.h"
0021
0022 #include <QGlobalStatic>
0023
0024 #include "KoFilterEffect.h"
0025 #include <KoPluginLoader.h>
0026
0027 #include <FlakeDebug.h>
0028 #include <KoXmlReader.h>
0029
0030 Q_GLOBAL_STATIC(KoFilterEffectRegistry, s_instance)
0031
0032 KoFilterEffectRegistry::KoFilterEffectRegistry()
0033   : d(0)
0034 {
0035 }
0036
0037 void KoFilterEffectRegistry::init()
0038 {
0039     KoPluginLoader::PluginsConfig config;
0040     config.whiteList = "FilterEffectPlugins";
0041     config.blacklist = "FilterEffectPluginsDisabled";
0042     KoPluginLoader::load(QStringLiteral("calligra/shapefiltereffects"), config);
0043 }
0044
0045
0046 KoFilterEffectRegistry::~KoFilterEffectRegistry()
0047 {
0048     qDeleteAll(doubleEntries());
0049     qDeleteAll(values());
0050 }
0051
0052 KoFilterEffectRegistry* KoFilterEffectRegistry::instance()
0053 {
0054     if (!s_instance.exists()) {
0055         s_instance->init();
0056     }
0057     return s_instance;
0058 }
0059
0060 KoFilterEffect * KoFilterEffectRegistry::createFilterEffectFromXml(const KoXmlElement & element, const KoFilterEffectLoadingContext &context)
0061 {
0062     KoFilterEffectFactoryBase * factory = get(element.tagName());
0063     if (!factory)
0064         return 0;
0065
0066     KoFilterEffect * filterEffect = factory->createFilterEffect();
0067     if (filterEffect->load(element, context))
0068         return filterEffect;
0069
0070     delete filterEffect;
0071     return 0;
0072 }