main.cpp

奇趣公司比较新的qt/emd版本

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

#ifndef QT_NO_IMAGEFORMATPLUGIN

#include "qsvgiohandler.h"

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

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

QStringList QSvgPlugin::keys() const
{
    return QStringList() << QLatin1String("svg");
}

QImageIOPlugin::Capabilities QSvgPlugin::capabilities(QIODevice *device, const QByteArray &format) const
{
    //### canRead disabled for now because it's hard to detect
    //    whether the file is actually svg without parsing it
    //if (device->isReadable() && QSvgIOHandler::canRead(device))

    if (format == "svg")
        return Capabilities(CanRead);
    else
        return 0;


    if (!device->isOpen())
        return 0;

    Capabilities cap;
    if (device->isReadable())
        cap |= CanRead;
    return cap;
}

QImageIOHandler *QSvgPlugin::create(QIODevice *device, const QByteArray &format) const
{
    QSvgIOHandler *hand = new QSvgIOHandler();
    hand->setDevice(device);
    hand->setFormat(format);
    return hand;
}

Q_EXPORT_STATIC_PLUGIN(QSvgPlugin)
Q_EXPORT_PLUGIN2(qsvg, QSvgPlugin)

#endif // !QT_NO_IMAGEFORMATPLUGIN