Add the math3d types to QVariant

Reviewed-by: Sarah Smith

15 files changed, 452 insertions, 28 deletions

diff --git a/src/corelib/kernel/qmetatype.cpp b/src/corelib/kernel/qmetatype.cpp
index 6d9daec..bd27ec2 100644
--- a/src/corelib/kernel/qmetatype.cpp
+++ b/src/corelib/kernel/qmetatype.cpp
@@ -171,6 +171,11 @@ QT_BEGIN_NAMESPACE
     \value QBitmap QBitmap
     \value QMatrix QMatrix
     \value QTransform QTransform
+    \value QMatrix4x4 QMatrix4x4
+    \value QVector2D QVector2D
+    \value QVector3D QVector3D
+    \value QVector4D QVector4D
+    \value QQuaternion QQuaternion
 
     \value User  Base value for user types
 
@@ -272,6 +277,11 @@ static const struct { const char * typeName; int type; } types[] = {
     {"QTextFormat", QMetaType::QTextFormat},
     {"QMatrix", QMetaType::QMatrix},
     {"QTransform", QMetaType::QTransform},
+    {"QMatrix4x4", QMetaType::QMatrix4x4},
+    {"QVector2D", QMetaType::QVector2D},
+    {"QVector3D", QMetaType::QVector3D},
+    {"QVector4D", QMetaType::QVector4D},
+    {"QQuaternion", QMetaType::QQuaternion},
 
     /* All Metatype builtins */
     {"void*", QMetaType::VoidStar},
@@ -670,6 +680,11 @@ bool QMetaType::save(QDataStream &stream, int type, const void *data)
     case QMetaType::QTextFormat:
     case QMetaType::QMatrix:
     case QMetaType::QTransform:
+    case QMetaType::QMatrix4x4:
+    case QMetaType::QVector2D:
+    case QMetaType::QVector3D:
+    case QMetaType::QVector4D:
+    case QMetaType::QQuaternion:
         if (!qMetaTypeGuiHelper)
             return false;
         qMetaTypeGuiHelper[type - FirstGuiType].saveOp(stream, data);
@@ -862,6 +877,11 @@ bool QMetaType::load(QDataStream &stream, int type, void *data)
     case QMetaType::QTextFormat:
     case QMetaType::QMatrix:
     case QMetaType::QTransform:
+    case QMetaType::QMatrix4x4:
+    case QMetaType::QVector2D:
+    case QMetaType::QVector3D:
+    case QMetaType::QVector4D:
+    case QMetaType::QQuaternion:
         if (!qMetaTypeGuiHelper)
             return false;
         qMetaTypeGuiHelper[type - FirstGuiType].loadOp(stream, data);
diff --git a/src/corelib/kernel/qmetatype.h b/src/corelib/kernel/qmetatype.h
index 497c014..052312c 100644
--- a/src/corelib/kernel/qmetatype.h
+++ b/src/corelib/kernel/qmetatype.h
@@ -79,7 +79,9 @@ public:
         QIcon = 69, QImage = 70, QPolygon = 71, QRegion = 72, QBitmap = 73,
         QCursor = 74, QSizePolicy = 75, QKeySequence = 76, QPen = 77,
         QTextLength = 78, QTextFormat = 79, QMatrix = 80, QTransform = 81,
-        LastGuiType = 81 /* QTransform */,
+        QMatrix4x4 = 82, QVector2D = 83, QVector3D = 84, QVector4D = 85,
+        QQuaternion = 86,
+        LastGuiType = 86 /* QQuaternion */,
 
         FirstCoreExtType = 128 /* VoidStar */,
         VoidStar = 128, Long = 129, Short = 130, Char = 131, ULong = 132,
@@ -292,6 +294,11 @@ class QTextLength;
 class QTextFormat;
 class QMatrix;
 class QTransform;
+class QMatrix4x4;
+class QVector2D;
+class QVector3D;
+class QVector4D;
+class QQuaternion;
 
 QT_END_NAMESPACE
 
@@ -354,6 +361,11 @@ Q_DECLARE_BUILTIN_METATYPE(QTextLength, QTextLength)
 Q_DECLARE_BUILTIN_METATYPE(QTextFormat, QTextFormat)
 Q_DECLARE_BUILTIN_METATYPE(QMatrix, QMatrix)
 Q_DECLARE_BUILTIN_METATYPE(QTransform, QTransform)
+Q_DECLARE_BUILTIN_METATYPE(QMatrix4x4, QMatrix4x4)
+Q_DECLARE_BUILTIN_METATYPE(QVector2D, QVector2D)
+Q_DECLARE_BUILTIN_METATYPE(QVector3D, QVector3D)
+Q_DECLARE_BUILTIN_METATYPE(QVector4D, QVector4D)
+Q_DECLARE_BUILTIN_METATYPE(QQuaternion, QQuaternion)
 
 QT_END_HEADER
 
diff --git a/src/corelib/kernel/qvariant.cpp b/src/corelib/kernel/qvariant.cpp
index 2ef9de4..2b5ea0a 100644
--- a/src/corelib/kernel/qvariant.cpp
+++ b/src/corelib/kernel/qvariant.cpp
@@ -1264,6 +1264,7 @@ const QVariant::Handler *QVariant::handler = &qt_kernel_variant_handler;
     \value Map  a QVariantMap
     \value Matrix  a QMatrix
     \value Transform  a QTransform
+    \value Matrix4x4  a QMatrix4x4
     \value Palette  a QPalette
     \value Pen  a QPen
     \value Pixmap  a QPixmap
@@ -1271,6 +1272,7 @@ const QVariant::Handler *QVariant::handler = &qt_kernel_variant_handler;
     \value PointArray  a QPointArray
     \value PointF  a QPointF
     \value Polygon a QPolygon
+    \value Quaternion  a QQuaternion
     \value Rect  a QRect
     \value RectF  a QRectF
     \value RegExp  a QRegExp
@@ -1286,6 +1288,9 @@ const QVariant::Handler *QVariant::handler = &qt_kernel_variant_handler;
     \value UInt  a \l uint
     \value ULongLong a \l qulonglong
     \value Url  a QUrl
+    \value Vector2D  a QVector2D
+    \value Vector3D  a QVector3D
+    \value Vector4D  a QVector4D
 
     \value UserType Base value for user-defined types.
 
@@ -1677,7 +1682,7 @@ QVariant::QVariant(Qt::GlobalColor color) { create(62, &color); }
     Note that return values in the ranges QVariant::Char through
     QVariant::RegExp and QVariant::Font through QVariant::Transform
     correspond to the values in the ranges QMetaType::QChar through
-    QMetaType::QRegExp and QMetaType::QFont through QMetaType::QTransform.
+    QMetaType::QRegExp and QMetaType::QFont through QMetaType::QQuaternion.
 
     Pay particular attention when working with char and QChar
     variants.  Note that there is no QVariant constructor specifically
diff --git a/src/corelib/kernel/qvariant.h b/src/corelib/kernel/qvariant.h
index e923844..a68939d 100644
--- a/src/corelib/kernel/qvariant.h
+++ b/src/corelib/kernel/qvariant.h
@@ -154,7 +154,12 @@ class Q_CORE_EXPORT QVariant
         TextFormat = 79,
         Matrix = 80,
         Transform = 81,
-        LastGuiType = Transform,
+        Matrix4x4 = 82,
+        Vector2D = 83,
+        Vector3D = 84,
+        Vector4D = 85,
+        Quaternion = 86,
+        LastGuiType = Quaternion,
 
         UserType = 127,
 #ifdef QT3_SUPPORT
diff --git a/src/gui/kernel/qguivariant.cpp b/src/gui/kernel/qguivariant.cpp
index 01df47d..ab69cdf 100644
--- a/src/gui/kernel/qguivariant.cpp
+++ b/src/gui/kernel/qguivariant.cpp
@@ -60,6 +60,11 @@
 #include "qregion.h"
 #include "qsizepolicy.h"
 #include "qtextformat.h"
+#include "qmatrix4x4.h"
+#include "qvector2d.h"
+#include "qvector3d.h"
+#include "qvector4d.h"
+#include "qquaternion.h"
 
 #include "private/qvariant_p.h"
 
@@ -148,6 +153,31 @@ static void construct(QVariant::Private *x, const void *copy)
         v_construct<QColor>(x, &color);
         break;
     }
+#ifndef QT_NO_MATRIX4X4
+    case QVariant::Matrix4x4:
+        v_construct<QMatrix4x4>(x, copy);
+        break;
+#endif
+#ifndef QT_NO_VECTOR2D
+    case QVariant::Vector2D:
+        v_construct<QVector2D>(x, copy);
+        break;
+#endif
+#ifndef QT_NO_VECTOR3D
+    case QVariant::Vector3D:
+        v_construct<QVector3D>(x, copy);
+        break;
+#endif
+#ifndef QT_NO_VECTOR4D
+    case QVariant::Vector4D:
+        v_construct<QVector4D>(x, copy);
+        break;
+#endif
+#ifndef QT_NO_QUATERNION
+    case QVariant::Quaternion:
+        v_construct<QQuaternion>(x, copy);
+        break;
+#endif
     default:
         qcoreVariantHandler()->construct(x, copy);
         return;
@@ -221,6 +251,31 @@ static void clear(QVariant::Private *d)
     case QVariant::Pen:
         v_clear<QPen>(d);
         break;
+#ifndef QT_NO_MATRIX4X4
+    case QVariant::Matrix4x4:
+        v_clear<QMatrix4x4>(d);
+        break;
+#endif
+#ifndef QT_NO_VECTOR2D
+    case QVariant::Vector2D:
+        v_clear<QVector2D>(d);
+        break;
+#endif
+#ifndef QT_NO_VECTOR3D
+    case QVariant::Vector3D:
+        v_clear<QVector3D>(d);
+        break;
+#endif
+#ifndef QT_NO_VECTOR4D
+    case QVariant::Vector4D:
+        v_clear<QVector4D>(d);
+        break;
+#endif
+#ifndef QT_NO_QUATERNION
+    case QVariant::Quaternion:
+        v_clear<QVector4D>(d);
+        break;
+#endif
     default:
         qcoreVariantHandler()->clear(d);
         return;
@@ -266,7 +321,26 @@ static bool isNull(const QVariant::Private *d)
     case QVariant::KeySequence:
 #endif
     case QVariant::Pen:
+#ifndef QT_NO_MATRIX4X4
+    case QVariant::Matrix4x4:
+#endif
         break;
+#ifndef QT_NO_VECTOR2D
+    case QVariant::Vector2D:
+        return v_cast<QVector2D>(d)->isNull();
+#endif
+#ifndef QT_NO_VECTOR3D
+    case QVariant::Vector3D:
+        return v_cast<QVector3D>(d)->isNull();
+#endif
+#ifndef QT_NO_VECTOR4D
+    case QVariant::Vector4D:
+        return v_cast<QVector4D>(d)->isNull();
+#endif
+#ifndef QT_NO_QUATERNION
+    case QVariant::Quaternion:
+        return v_cast<QQuaternion>(d)->isNull();
+#endif
     default:
         return qcoreVariantHandler()->isNull(d);
     }
@@ -326,6 +400,26 @@ static bool compare(const QVariant::Private *a, const QVariant::Private *b)
 #endif
     case QVariant::Pen:
         return *v_cast<QPen>(a) == *v_cast<QPen>(b);
+#ifndef QT_NO_MATRIX4X4
+    case QVariant::Matrix4x4:
+        return *v_cast<QMatrix4x4>(a) == *v_cast<QMatrix4x4>(b);
+#endif
+#ifndef QT_NO_VECTOR2D
+    case QVariant::Vector2D:
+        return *v_cast<QVector2D>(a) == *v_cast<QVector2D>(b);
+#endif
+#ifndef QT_NO_VECTOR3D
+    case QVariant::Vector3D:
+        return *v_cast<QVector3D>(a) == *v_cast<QVector3D>(b);
+#endif
+#ifndef QT_NO_VECTOR4D
+    case QVariant::Vector4D:
+        return *v_cast<QVector4D>(a) == *v_cast<QVector4D>(b);
+#endif
+#ifndef QT_NO_QUATERNION
+    case QVariant::Quaternion:
+        return *v_cast<QQuaternion>(a) == *v_cast<QQuaternion>(b);
+#endif
     default:
         break;
     }
@@ -513,6 +607,31 @@ static void streamDebug(QDebug dbg, const QVariant &v)
     case QVariant::Pen:
         dbg.nospace() << qvariant_cast<QPen>(v);
         break;
+#ifndef QT_NO_MATRIX4X4
+    case QVariant::Matrix4x4:
+        dbg.nospace() << qvariant_cast<QMatrix4x4>(v);
+        break;
+#endif
+#ifndef QT_NO_VECTOR2D
+    case QVariant::Vector2D:
+        dbg.nospace() << qvariant_cast<QVector2D>(v);
+        break;
+#endif
+#ifndef QT_NO_VECTOR3D
+    case QVariant::Vector3D:
+        dbg.nospace() << qvariant_cast<QVector3D>(v);
+        break;
+#endif
+#ifndef QT_NO_VECTOR4D
+    case QVariant::Vector4D:
+        dbg.nospace() << qvariant_cast<QVector4D>(v);
+        break;
+#endif
+#ifndef QT_NO_QUATERNION
+    case QVariant::Quaternion:
+        dbg.nospace() << qvariant_cast<QQuaternion>(v);
+        break;
+#endif
     default:
         qcoreVariantHandler()->debugStream(dbg, v);
         break;
@@ -596,6 +715,21 @@ Q_DECL_METATYPE_HELPER(QTextLength)
 Q_DECL_METATYPE_HELPER(QTextFormat)
 Q_DECL_METATYPE_HELPER(QMatrix)
 Q_DECL_METATYPE_HELPER(QTransform)
+#ifndef QT_NO_MATRIX4X4
+Q_DECL_METATYPE_HELPER(QMatrix4x4)
+#endif
+#ifndef QT_NO_VECTOR2D
+Q_DECL_METATYPE_HELPER(QVector2D)
+#endif
+#ifndef QT_NO_VECTOR3D
+Q_DECL_METATYPE_HELPER(QVector3D)
+#endif
+#ifndef QT_NO_VECTOR4D
+Q_DECL_METATYPE_HELPER(QVector4D)
+#endif
+#ifndef QT_NO_QUATERNION
+Q_DECL_METATYPE_HELPER(QQuaternion)
+#endif
 
 #ifdef QT_NO_DATASTREAM
 #  define Q_IMPL_METATYPE_HELPER(TYPE) \
@@ -645,7 +779,32 @@ static const QMetaTypeGuiHelper qVariantGuiHelper[] = {
     Q_IMPL_METATYPE_HELPER(QTextLength),
     Q_IMPL_METATYPE_HELPER(QTextFormat),
     Q_IMPL_METATYPE_HELPER(QMatrix),
-    Q_IMPL_METATYPE_HELPER(QTransform)
+    Q_IMPL_METATYPE_HELPER(QTransform),
+#ifndef QT_NO_MATRIX4X4
+    Q_IMPL_METATYPE_HELPER(QMatrix4x4),
+#else
+    {0, 0, 0, 0},
+#endif
+#ifndef QT_NO_VECTOR2D
+    Q_IMPL_METATYPE_HELPER(QVector2D),
+#else
+    {0, 0, 0, 0},
+#endif
+#ifndef QT_NO_VECTOR3D
+    Q_IMPL_METATYPE_HELPER(QVector3D),
+#else
+    {0, 0, 0, 0},
+#endif
+#ifndef QT_NO_VECTOR4D
+    Q_IMPL_METATYPE_HELPER(QVector4D),
+#else
+    {0, 0, 0, 0},
+#endif
+#ifndef QT_NO_QUATERNION
+    Q_IMPL_METATYPE_HELPER(QQuaternion)
+#else
+    {0, 0, 0, 0}
+#endif
 };
 
 static const QVariant::Handler *qt_guivariant_last_handler = 0;
diff --git a/src/gui/math3d/qmatrix4x4.cpp b/src/gui/math3d/qmatrix4x4.cpp
index 88f58c8..b4c54a0 100644
--- a/src/gui/math3d/qmatrix4x4.cpp
+++ b/src/gui/math3d/qmatrix4x4.cpp
@@ -1794,6 +1794,51 @@ QDebug operator<<(QDebug dbg, const QMatrix4x4 &m)
 
 #endif
 
-#endif
+#ifndef QT_NO_DATASTREAM
+
+/*!
+    \fn QDataStream &operator<<(QDataStream &stream, const QMatrix4x4 &matrix)
+    \relates QMatrix4x4
+
+    Writes the given \a matrix to the given \a stream and returns a
+    reference to the stream.
+
+    \sa {Format of the QDataStream Operators}
+*/
+
+QDataStream &operator<<(QDataStream &stream, const QMatrix4x4 &matrix)
+{
+    for (int row = 0; row < 4; ++row)
+        for (int col = 0; col < 4; ++col)
+            stream << double(matrix(row, col));
+    return stream;
+}
+
+/*!
+    \fn QDataStream &operator>>(QDataStream &stream, QMatrix4x4 &matrix)
+    \relates QMatrix4x4
+
+    Reads a 4x4 matrix from the given \a stream into the given \a matrix
+    and returns a reference to the stream.
+
+    \sa {Format of the QDataStream Operators}
+*/
+
+QDataStream &operator>>(QDataStream &stream, QMatrix4x4 &matrix)
+{
+    double x;
+    for (int row = 0; row < 4; ++row) {
+        for (int col = 0; col < 4; ++col) {
+            stream >> x;
+            matrix(row, col) = float(x);
+        }
+    }
+    matrix.inferSpecialType();
+    return stream;
+}
+
+#endif // QT_NO_DATASTREAM
+
+#endif // QT_NO_MATRIX4X4
 
 QT_END_NAMESPACE
diff --git a/src/gui/math3d/qmatrix4x4.h b/src/gui/math3d/qmatrix4x4.h
index d63de70..f7246bb 100644
--- a/src/gui/math3d/qmatrix4x4.h
+++ b/src/gui/math3d/qmatrix4x4.h
@@ -960,6 +960,11 @@ inline float *QMatrix4x4::data()
 Q_GUI_EXPORT QDebug operator<<(QDebug dbg, const QMatrix4x4 &m);
 #endif
 
+#ifndef QT_NO_DATASTREAM
+Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QMatrix4x4 &);
+Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QMatrix4x4 &);
+#endif
+
 template <int N, int M>
 QMatrix4x4 qGenericMatrixToMatrix4x4(const QGenericMatrix<N, M, qreal, float>& matrix)
 {
@@ -989,10 +994,6 @@ QGenericMatrix<N, M, qreal, float> qGenericMatrixFromMatrix4x4(const QMatrix4x4&
 
 QT_END_NAMESPACE
 
-#ifndef QT_NO_MATRIX4X4
-Q_DECLARE_METATYPE(QMatrix4x4)
-#endif
-
 QT_END_HEADER
 
 #endif
diff --git a/src/gui/math3d/qquaternion.cpp b/src/gui/math3d/qquaternion.cpp
index d9d4160..841a4c0 100644
--- a/src/gui/math3d/qquaternion.cpp
+++ b/src/gui/math3d/qquaternion.cpp
@@ -571,6 +571,51 @@ QDebug operator<<(QDebug dbg, const QQuaternion &q)
 
 #endif
 
+#ifndef QT_NO_DATASTREAM
+
+/*!
+    \fn QDataStream &operator<<(QDataStream &stream, const QQuaternion &quaternion)
+    \relates QQuaternion
+
+    Writes the given \a quaternion to the given \a stream and returns a
+    reference to the stream.
+
+    \sa {Format of the QDataStream Operators}
+*/
+
+QDataStream &operator<<(QDataStream &stream, const QQuaternion &quaternion)
+{
+    stream << double(quaternion.scalar()) << double(quaternion.x())
+           << double(quaternion.y()) << double(quaternion.z());
+    return stream;
+}
+
+/*!
+    \fn QDataStream &operator>>(QDataStream &stream, QQuaternion &quaternion)
+    \relates QQuaternion
+
+    Reads a quaternion from the given \a stream into the given \a quaternion
+    and returns a reference to the stream.
+
+    \sa {Format of the QDataStream Operators}
+*/
+
+QDataStream &operator>>(QDataStream &stream, QQuaternion &quaternion)
+{
+    double scalar, x, y, z;
+    stream >> scalar;
+    stream >> x;
+    stream >> y;
+    stream >> z;
+    quaternion.setScalar(qreal(scalar));
+    quaternion.setX(qreal(x));
+    quaternion.setY(qreal(y));
+    quaternion.setZ(qreal(z));
+    return stream;
+}
+
+#endif // QT_NO_DATASTREAM
+
 #endif
 
 QT_END_NAMESPACE
diff --git a/src/gui/math3d/qquaternion.h b/src/gui/math3d/qquaternion.h
index 6b24a04..55c871d 100644
--- a/src/gui/math3d/qquaternion.h
+++ b/src/gui/math3d/qquaternion.h
@@ -324,14 +324,15 @@ inline QVector4D QQuaternion::toVector4D() const
 Q_GUI_EXPORT QDebug operator<<(QDebug dbg, const QQuaternion &q);
 #endif
 
+#ifndef QT_NO_DATASTREAM
+Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QQuaternion &);
+Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QQuaternion &);
 #endif
 
-QT_END_NAMESPACE
-
-#ifndef QT_NO_QUATERNION
-Q_DECLARE_METATYPE(QQuaternion)
 #endif
 
+QT_END_NAMESPACE
+
 QT_END_HEADER
 
 #endif
diff --git a/src/gui/math3d/qvector2d.cpp b/src/gui/math3d/qvector2d.cpp
index b492aa8..28f6b7a 100644
--- a/src/gui/math3d/qvector2d.cpp
+++ b/src/gui/math3d/qvector2d.cpp
@@ -410,6 +410,46 @@ QDebug operator<<(QDebug dbg, const QVector2D &vector)
 
 #endif
 
-#endif
+#ifndef QT_NO_DATASTREAM
+
+/*!
+    \fn QDataStream &operator<<(QDataStream &stream, const QVector2D &vector)
+    \relates QVector2D
+
+    Writes the given \a vector to the given \a stream and returns a
+    reference to the stream.
+
+    \sa {Format of the QDataStream Operators}
+*/
+
+QDataStream &operator<<(QDataStream &stream, const QVector2D &vector)
+{
+    stream << double(vector.x()) << double(vector.y());
+    return stream;
+}
+
+/*!
+    \fn QDataStream &operator>>(QDataStream &stream, QVector2D &vector)
+    \relates QVector2D
+
+    Reads a 2D vector from the given \a stream into the given \a vector
+    and returns a reference to the stream.
+
+    \sa {Format of the QDataStream Operators}
+*/
+
+QDataStream &operator>>(QDataStream &stream, QVector2D &vector)
+{
+    double x, y;
+    stream >> x;
+    stream >> y;
+    vector.setX(qreal(x));
+    vector.setY(qreal(y));
+    return stream;
+}
+
+#endif // QT_NO_DATASTREAM
+
+#endif // QT_NO_VECTOR2D
 
 QT_END_NAMESPACE
diff --git a/src/gui/math3d/qvector2d.h b/src/gui/math3d/qvector2d.h
index bb62afe..d473c2f 100644
--- a/src/gui/math3d/qvector2d.h
+++ b/src/gui/math3d/qvector2d.h
@@ -243,14 +243,15 @@ inline QPointF QVector2D::toPointF() const
 Q_GUI_EXPORT QDebug operator<<(QDebug dbg, const QVector2D &vector);
 #endif
 
+#ifndef QT_NO_DATASTREAM
+Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QVector2D &);
+Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QVector2D &);
 #endif
 
-QT_END_NAMESPACE
-
-#ifndef QT_NO_VECTOR2D
-Q_DECLARE_METATYPE(QVector2D)
 #endif
 
+QT_END_NAMESPACE
+
 QT_END_HEADER
 
 #endif
diff --git a/src/gui/math3d/qvector3d.cpp b/src/gui/math3d/qvector3d.cpp
index 95550cd..881f47c 100644
--- a/src/gui/math3d/qvector3d.cpp
+++ b/src/gui/math3d/qvector3d.cpp
@@ -558,6 +558,49 @@ QDebug operator<<(QDebug dbg, const QVector3D &vector)
 
 #endif
 
-#endif
+#ifndef QT_NO_DATASTREAM
+
+/*!
+    \fn QDataStream &operator<<(QDataStream &stream, const QVector3D &vector)
+    \relates QVector3D
+
+    Writes the given \a vector to the given \a stream and returns a
+    reference to the stream.
+
+    \sa {Format of the QDataStream Operators}
+*/
+
+QDataStream &operator<<(QDataStream &stream, const QVector3D &vector)
+{
+    stream << double(vector.x()) << double(vector.y())
+           << double(vector.z());
+    return stream;
+}
+
+/*!
+    \fn QDataStream &operator>>(QDataStream &stream, QVector3D &vector)
+    \relates QVector3D
+
+    Reads a 3D vector from the given \a stream into the given \a vector
+    and returns a reference to the stream.
+
+    \sa {Format of the QDataStream Operators}
+*/
+
+QDataStream &operator>>(QDataStream &stream, QVector3D &vector)
+{
+    double x, y, z;
+    stream >> x;
+    stream >> y;
+    stream >> z;
+    vector.setX(qreal(x));
+    vector.setY(qreal(y));
+    vector.setZ(qreal(z));
+    return stream;
+}
+
+#endif // QT_NO_DATASTREAM
+
+#endif // QT_NO_VECTOR3D
 
 QT_END_NAMESPACE
diff --git a/src/gui/math3d/qvector3d.h b/src/gui/math3d/qvector3d.h
index 873b388..7494dcf 100644
--- a/src/gui/math3d/qvector3d.h
+++ b/src/gui/math3d/qvector3d.h
@@ -271,14 +271,15 @@ inline QPointF QVector3D::toPointF() const
 Q_GUI_EXPORT QDebug operator<<(QDebug dbg, const QVector3D &vector);
 #endif
 
+#ifndef QT_NO_DATASTREAM
+Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QVector3D &);
+Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QVector3D &);
 #endif
 
-QT_END_NAMESPACE
-
-#ifndef QT_NO_VECTOR3D
-Q_DECLARE_METATYPE(QVector3D)
 #endif
 
+QT_END_NAMESPACE
+
 QT_END_HEADER
 
 #endif
diff --git a/src/gui/math3d/qvector4d.cpp b/src/gui/math3d/qvector4d.cpp
index 1f7d921..1a84db6 100644
--- a/src/gui/math3d/qvector4d.cpp
+++ b/src/gui/math3d/qvector4d.cpp
@@ -509,6 +509,51 @@ QDebug operator<<(QDebug dbg, const QVector4D &vector)
 
 #endif
 
-#endif
+#ifndef QT_NO_DATASTREAM
+
+/*!
+    \fn QDataStream &operator<<(QDataStream &stream, const QVector4D &vector)
+    \relates QVector4D
+
+    Writes the given \a vector to the given \a stream and returns a
+    reference to the stream.
+
+    \sa {Format of the QDataStream Operators}
+*/
+
+QDataStream &operator<<(QDataStream &stream, const QVector4D &vector)
+{
+    stream << double(vector.x()) << double(vector.y())
+           << double(vector.z()) << double(vector.w());
+    return stream;
+}
+
+/*!
+    \fn QDataStream &operator>>(QDataStream &stream, QVector4D &vector)
+    \relates QVector4D
+
+    Reads a 4D vector from the given \a stream into the given \a vector
+    and returns a reference to the stream.
+
+    \sa {Format of the QDataStream Operators}
+*/
+
+QDataStream &operator>>(QDataStream &stream, QVector4D &vector)
+{
+    double x, y, z, w;
+    stream >> x;
+    stream >> y;
+    stream >> z;
+    stream >> w;
+    vector.setX(qreal(x));
+    vector.setY(qreal(y));
+    vector.setZ(qreal(z));
+    vector.setW(qreal(w));
+    return stream;
+}
+
+#endif // QT_NO_DATASTREAM
+
+#endif // QT_NO_VECTOR4D
 
 QT_END_NAMESPACE
diff --git a/src/gui/math3d/qvector4d.h b/src/gui/math3d/qvector4d.h
index dcfd87a..cd61496 100644
--- a/src/gui/math3d/qvector4d.h
+++ b/src/gui/math3d/qvector4d.h
@@ -276,14 +276,15 @@ inline QPointF QVector4D::toPointF() const
 Q_GUI_EXPORT QDebug operator<<(QDebug dbg, const QVector4D &vector);
 #endif
 
+#ifndef QT_NO_DATASTREAM
+Q_GUI_EXPORT QDataStream &operator<<(QDataStream &, const QVector4D &);
+Q_GUI_EXPORT QDataStream &operator>>(QDataStream &, QVector4D &);
 #endif
 
-QT_END_NAMESPACE
-
-#ifndef QT_NO_VECTOR4D
-Q_DECLARE_METATYPE(QVector4D)
 #endif
 
+QT_END_NAMESPACE
+
 QT_END_HEADER
 
 #endif