void ImageHud::setHandlePosition(const glm::dvec2& position)
 {
     glm::dvec2 displacement = position - handlePosition();
     _cornersPositions[0] += displacement;
     _cornersPositions[1] += displacement;
     _cornersPositions[2] += displacement;
     _cornersPositions[3] += displacement;
 }
int Q3DockArea::qt_metacall(QMetaObject::Call _c, int _id, void **_a)
{
    _id = QWidget::qt_metacall(_c, _id, _a);
    if (_id < 0)
        return _id;
    if (_c == QMetaObject::InvokeMetaMethod) {
        switch (_id) {
        case 0: lineUp((*reinterpret_cast< bool(*)>(_a[1]))); break;
        }
        _id -= 1;
    }
#ifndef QT_NO_PROPERTIES
      else if (_c == QMetaObject::ReadProperty) {
        void *_v = _a[0];
        switch (_id) {
        case 0: *reinterpret_cast< Qt::Orientation*>(_v) = orientation(); break;
        case 1: *reinterpret_cast< int*>(_v) = count(); break;
        case 2: *reinterpret_cast< bool*>(_v) = isEmpty(); break;
        case 3: *reinterpret_cast< HandlePosition*>(_v) = handlePosition(); break;
        }
        _id -= 4;
    } else if (_c == QMetaObject::WriteProperty) {
        _id -= 4;
    } else if (_c == QMetaObject::ResetProperty) {
        _id -= 4;
    } else if (_c == QMetaObject::QueryPropertyDesignable) {
        _id -= 4;
    } else if (_c == QMetaObject::QueryPropertyScriptable) {
        _id -= 4;
    } else if (_c == QMetaObject::QueryPropertyStored) {
        _id -= 4;
    } else if (_c == QMetaObject::QueryPropertyEditable) {
        _id -= 4;
    } else if (_c == QMetaObject::QueryPropertyUser) {
        _id -= 4;
    }
#endif // QT_NO_PROPERTIES
    return _id;
}