Method ByteArrayBuf

gui/apisurface.cpp:30–33

struct ByteArrayBuf : public std::streambuf
{
    ByteArrayBuf(const QByteArray & a)
    {
        setg((char *)a.data(), (char *)a.data(), (char *)a.data() + a.size());
    }
};

QImage ApiSurface::calculateThumbnail(bool opaque, bool alpha) const