main.cpp

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

#ifndef QT_NO_IMAGEFORMATPLUGIN

#ifdef QT_NO_IMAGEFORMAT_JPEG
#undef QT_NO_IMAGEFORMAT_JPEG
#endif
#include <qjpeghandler_p.h>

QT_BEGIN_NAMESPACE

class QJpegPlugin : public QImageIOPlugin
{
public:
    QStringList keys() const;
    Capabilities capabilities(QIODevice *device, const QByteArray &format) const;
    QImageIOHandler *create(QIODevice *device, const QByteArray &format = QByteArray()) const;
};

QStringList QJpegPlugin::keys() const
{
    return QStringList() << QLatin1String("jpeg") << QLatin1String("jpg");
}

QImageIOPlugin::Capabilities QJpegPlugin::capabilities(QIODevice *device, const QByteArray &format) const
{
    if (format == "jpeg" || format == "jpg")
        return Capabilities(CanRead | CanWrite);
    if (!format.isEmpty())
        return 0;
    if (!device->isOpen())
        return 0;

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

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

Q_EXPORT_STATIC_PLUGIN(QJpegPlugin)
Q_EXPORT_PLUGIN2(qjpeg, QJpegPlugin)

QT_END_NAMESPACE

#endif // QT_NO_IMAGEFORMATPLUGIN