어떻게 Qt의 QVariant를 boost :: any로 변환 할 수 있습니까?

Question

어떻게 Qt의 QVariant를 boost :: any로 변환 할 수 있습니까? 내가 쉬운 방법이 있다고 생각하지 말아

Answer 1

, 나는 다음과 같습니다 Boost.Variant이 Boost.Any의 aswell 대신 일을 할 것인지

boost::any qvariant_to_any(const QVariant& v) { 
    switch(v.userType()) { 
     case QVariant::Bool: 
      return boost::any(v.value<bool>()); 
      //or: return boost::any(v.toBool()); 
     case QVariant::Int: 
      return boost::any(v.value<int>()); 
      //or: return boost::any(v.toInt()); 
     case QVariant::UInt: 
      return boost::any(v.value<unsigned>()); 
     // ... 
     // all your types which store in a QVariant in your use case 
     case QVariant::Invalid: 
     default: 
      throw std::bad_cast(); //or return default constructed boost::any 
    } 
} 

가, 독일하기 Magazin에 대한 좋은 기사가 있었다 이 당신을 interrests 경우 Boost.Variant 반대에 QVariant를 변환하는 소스 코드를 살펴 :
독일어 기사 : http://www.heise.de/developer/artikel/Konvertierungen-992950.html
소스 : 나는 어떤 사람에게 어떤을 저장 희망 ftp://ftp.heise.de/pub/ix/developer/elfenbein.zip

Answer 2

smerlin의 위대한 대답에 정성을 기울임으로써 타이핑.

boost::any QVariantToAny(const QVariant& v) { 
    switch(v.userType()) { 
     case QVariant::BitArray: 
      return boost::any(v.value<QBitArray>()); 
     case QVariant::Bitmap: 
      return boost::any(v.value<QBitmap>()); 
     case QVariant::Bool: 
      return boost::any(v.value<bool>()); 
     case QVariant::Brush: 
      return boost::any(v.value<QBrush>()); 
     case QVariant::ByteArray: 
      return boost::any(v.value<QByteArray>()); 
     case QVariant::Char: 
      return boost::any(v.value<QChar>()); 
     case QVariant::Color: 
      return boost::any(v.value<QColor>()); 
     case QVariant::Cursor: 
      return boost::any(v.value<QCursor>()); 
     case QVariant::Date: 
      return boost::any(v.value<QDate>()); 
     case QVariant::DateTime: 
      return boost::any(v.value<QDateTime>()); 
     case QVariant::Double: 
      return boost::any(v.value<double>()); 
     case QVariant::EasingCurve: 
      return boost::any(v.value<QEasingCurve>()); 
     case QVariant::Font: 
      return boost::any(v.value<QFont>()); 
     case QVariant::Hash: 
      return boost::any(v.value<QVariantHash>()); 
     case QVariant::Icon: 
      return boost::any(v.value<QIcon>()); 
     case QVariant::Image: 
      return boost::any(v.value<QImage>()); 
     case QVariant::Int: 
      return boost::any(v.value<int>()); 
     case QVariant::KeySequence: 
      return boost::any(v.value<QKeySequence>()); 
     case QVariant::Line: 
      return boost::any(v.value<QLine>()); 
     case QVariant::LineF: 
      return boost::any(v.value<QLineF>()); 
     case QVariant::List: 
      return boost::any(v.value<QVariantList>()); 
     case QVariant::Locale: 
      return boost::any(v.value<QLocale>()); 
     case QVariant::LongLong: 
      return boost::any(v.value<qlonglong>()); 
     case QVariant::Map: 
      return boost::any(v.value<QVariantMap>()); 
     case QVariant::Matrix: 
      return boost::any(v.value<QMatrix>()); 
     case QVariant::Transform: 
      return boost::any(v.value<QTransform>()); 
     case QVariant::Matrix4x4: 
      return boost::any(v.value<QMatrix4x4>()); 
     case QVariant::Palette: 
      return boost::any(v.value<QPalette>()); 
     case QVariant::Pen: 
      return boost::any(v.value<QPen>()); 
     case QVariant::Pixmap: 
      return boost::any(v.value<QPixmap>()); 
     case QVariant::Point: 
      return boost::any(v.value<QPoint>()); 
     case QVariant::PointArray: 
      return boost::any(v.value<QPointArray>()); 
     case QVariant::PointF: 
      return boost::any(v.value<QPointF>()); 
     case QVariant::Polygon: 
      return boost::any(v.value<QPolygon>()); 
     case QVariant::Quaternion: 
      return boost::any(v.value<QQuaternion>()); 
     case QVariant::Rect: 
      return boost::any(v.value<QRect>()); 
     case QVariant::RectF: 
      return boost::any(v.value<QRectF>()); 
     case QVariant::RegExp: 
      return boost::any(v.value<QRegExp>()); 
     case QVariant::Region: 
      return boost::any(v.value<QRegion>()); 
     case QVariant::Size: 
      return boost::any(v.value<QSize>()); 
     case QVariant::SizeF: 
      return boost::any(v.value<QSizeF>()); 
     case QVariant::SizePolicy: 
      return boost::any(v.value<QSizePolicy>()); 
     case QVariant::String: 
      return boost::any(v.value<QString>()); 
     case QVariant::StringList: 
      return boost::any(v.value<QStringList>()); 
     case QVariant::TextFormat: 
      return boost::any(v.value<QTextFormat>()); 
     case QVariant::TextLength: 
      return boost::any(v.value<QTextLength>()); 
     case QVariant::Time: 
      return boost::any(v.value<QTime>()); 
     case QVariant::UInt: 
      return boost::any(v.value<unsigned>()); 
     case QVariant::ULongLong: 
      return boost::any(v.value<qulonglong>()); 
     case QVariant::Url: 
      return boost::any(v.value<QUrl>()); 
     case QVariant::Vector2D: 
      return boost::any(v.value<QVector2D>()); 
     case QVariant::Vector3D: 
      return boost::any(v.value<QVector3D>()); 
     case QVariant::Vector4D: 
      return boost::any(v.value<QVector4D>()); 
     case QVariant::UserType: 
     case QVariant::Invalid: 
     default: 
      throw std::bad_cast(); //or return default constructed boost::any 
    } 
}