qtimageformats/src/plugins/imageformats/webp/main.cpp

/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the WebP plugins in the Qt ImageFormats module.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include <qimageiohandler.h>
#include <qstringlist.h>

#ifndef QT_NO_IMAGEFORMATPLUGIN

#ifdef QT_NO_IMAGEFORMAT_WEBP
#undef QT_NO_IMAGEFORMAT_WEBP
#endif
#include "qwebphandler_p.h"

#include <qiodevice.h>
#include <qbytearray.h>

QT_BEGIN_NAMESPACE

class QWebpPlugin : public QImageIOPlugin
{
    Q_OBJECT
    Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QImageIOHandlerFactoryInterface" FILE "webp.json")

public:
    Capabilities capabilities(QIODevice *device, const QByteArray &format) const;
    QImageIOHandler *create(QIODevice *device, const QByteArray &format = QByteArray()) const;
};

QWebpPlugin::Capabilities QWebpPlugin::capabilities(QIODevice *device, const QByteArray &format) const
{
    if (format == "webp")
        return Capabilities(CanRead | CanWrite);

    if (!format.isEmpty())
        return 0;
    if (!device->isOpen())
        return 0;

    Capabilities cap;
    if (device->isReadable() && QWebpHandler::canRead(device))
        cap |= CanRead;
    if (device->isWritable())
        cap |= CanWrite;

    return cap;
}

QImageIOHandler *QWebpPlugin::create(QIODevice *device, const QByteArray &format) const
{
    QImageIOHandler *handler = new QWebpHandler;
    handler->setDevice(device);
    handler->setFormat(format);
    return handler;
}

QT_END_NAMESPACE

#include "main.moc"

#endif // !QT_NO_IMAGEFORMATPLUGIN