/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtGui module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#include "qgraphicssystemfactory_p.h"+
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#include "qgraphicssystemplugin_p.h"+
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#include "private/qfactoryloader_p.h"+
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#include "qmutex.h"+
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+
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#include "qapplication.h"+
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#include "qgraphicssystem_raster_p.h"+
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#include "qdebug.h"+
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+
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QT_BEGIN_NAMESPACE+
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+
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#if !defined(QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)+
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Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader,+
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    (QGraphicsSystemFactoryInterface_iid, QLatin1String("/graphicssystems"), Qt::CaseInsensitive))+
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#endif+
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+
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QGraphicsSystem *QGraphicsSystemFactory::create(const QString& key)+
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{+
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    QGraphicsSystem *ret = 0;+
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    QString system = key.toLower();+
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+
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#if defined (QT_GRAPHICSSYSTEM_OPENGL)+
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    if (system.isEmpty()) {+
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        system = QLatin1String("opengl");+
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    }+
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#elif defined (QT_GRAPHICSSYSTEM_OPENVG)+
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    if (system.isEmpty()) {+
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        system = QLatin1String("openvg");+
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    }+
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#elif defined (QT_GRAPHICSSYSTEM_RASTER) && !defined(Q_WS_WIN) && !defined(Q_OS_SYMBIAN)+
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    if (system.isEmpty()) {+
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        system = QLatin1String("raster");+
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    }+
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#endif+
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+
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    if (system == QLatin1String("raster"))+
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        return new QRasterGraphicsSystem;+
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    else if (system.isEmpty() || system == QLatin1String("native"))+
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        return 0;+
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+
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#if !defined(QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)+
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    if (!ret) {+
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        if (QGraphicsSystemFactoryInterface *factory = qobject_cast<QGraphicsSystemFactoryInterface*>(loader()->instance(system)))+
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            ret = factory->create(system);+
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    }+
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#endif+
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+
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    if (!ret)+
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        qWarning() << "Unable to load graphicssystem" << system;+
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+
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    return ret;+
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}+
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+
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/*!+
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    Returns the list of valid keys, i.e. the keys this factory can+
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    create styles for.+
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+
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    \sa create()+
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*/+
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QStringList QGraphicsSystemFactory::keys()+
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{+
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#if !defined(QT_NO_LIBRARY) && !defined(QT_NO_SETTINGS)+
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    QStringList list = loader()->keys();+
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#else+
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    QStringList list;+
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#endif+
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    if (!list.contains(QLatin1String("Raster")))+
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        list << QLatin1String("raster");+
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    return list;+
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}+
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+
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QT_END_NAMESPACE+
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+
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