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author | Giuseppe D'Angelo <giuseppe.dangelo@kdab.com> | 2021-01-02 18:13:52 +0100 |
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committer | Giuseppe D'Angelo <giuseppe.dangelo@kdab.com> | 2021-02-11 15:07:12 +0100 |
commit | 6862ce3d7763d8163cc1350c45bc6adae8b4fc7f (patch) | |
tree | e349a472e2736ec6ec7d724a302987f1ca5408ff /src/gui/math3d/qmatrix4x4.h | |
parent | c7bcc51e2c196e5cc3def89137ca31b4a9d29157 (diff) |
QMatrix4x4: deprecate operator*(QMatrix4x4, QVector3D/QPoint(F))
The operation does not make sense at the "fundamental" level
for these classes (algebraic, in this case), so it shouldn't exist.
It's also a semantic trap:
* it interprets a _vector_ as a _point_ instead (the vector gets
1-extended in 4D)
* after the multiplication, it gets perspective divided.
These semantics do not belong to operator*.
operator*(QVector3D/QPoint(F), QMatrix) will be tackled in a next commit;
we don't have a straightforward replacement for it.
Drive-by, document that map() interprets vectors as points.
[ChangeLog][QtGui][QMatrix4x4] operator* between a QMatrix4x4 and a
QVector3D, QPoint, or QPointF has been deprecated in favor of map()
and mapVector().
Pick-to: 6.1
Task-number: QTBUG-89708
Change-Id: Iad78d6eb68cc8cdc3ac16b1635c4d3b522c95213
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Diffstat (limited to 'src/gui/math3d/qmatrix4x4.h')
-rw-r--r-- | src/gui/math3d/qmatrix4x4.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/gui/math3d/qmatrix4x4.h b/src/gui/math3d/qmatrix4x4.h index 4433f47af4..05e882d7c4 100644 --- a/src/gui/math3d/qmatrix4x4.h +++ b/src/gui/math3d/qmatrix4x4.h @@ -107,7 +107,9 @@ public: friend QMatrix4x4 operator-(const QMatrix4x4& m1, const QMatrix4x4& m2); friend QMatrix4x4 operator*(const QMatrix4x4& m1, const QMatrix4x4& m2); #ifndef QT_NO_VECTOR3D +#if QT_DEPRECATED_SINCE(6, 1) friend QVector3D operator*(const QMatrix4x4& matrix, const QVector3D& vector); +#endif friend QVector3D operator*(const QVector3D& vector, const QMatrix4x4& matrix); #endif #ifndef QT_NO_VECTOR4D @@ -117,8 +119,10 @@ public: friend QPoint operator*(const QPoint& point, const QMatrix4x4& matrix); friend QPointF operator*(const QPointF& point, const QMatrix4x4& matrix); friend QMatrix4x4 operator-(const QMatrix4x4& matrix); +#if QT_DEPRECATED_SINCE(6, 1) friend QPoint operator*(const QMatrix4x4& matrix, const QPoint& point); friend QPointF operator*(const QMatrix4x4& matrix, const QPointF& point); +#endif friend QMatrix4x4 operator*(float factor, const QMatrix4x4& matrix); friend QMatrix4x4 operator*(const QMatrix4x4& matrix, float factor); friend Q_GUI_EXPORT QMatrix4x4 operator/(const QMatrix4x4& matrix, float divisor); @@ -741,6 +745,9 @@ inline QVector3D operator*(const QVector3D& vector, const QMatrix4x4& matrix) return QVector3D(x / w, y / w, z / w); } +#if QT_DEPRECATED_SINCE(6, 1) + +QT_DEPRECATED_VERSION_X_6_1("Use matrix.map(vector) or matrix.mapVector(vector) instead") inline QVector3D operator*(const QMatrix4x4& matrix, const QVector3D& vector) { return matrix.map(vector); @@ -748,6 +755,8 @@ inline QVector3D operator*(const QMatrix4x4& matrix, const QVector3D& vector) #endif +#endif + #ifndef QT_NO_VECTOR4D inline QVector4D operator*(const QVector4D& vector, const QMatrix4x4& matrix) @@ -839,16 +848,22 @@ inline QPointF operator*(const QPointF& point, const QMatrix4x4& matrix) } } +#if QT_DEPRECATED_SINCE(6, 1) + +QT_DEPRECATED_VERSION_X_6_1("Use matrix.map(point) instead") inline QPoint operator*(const QMatrix4x4& matrix, const QPoint& point) { return matrix.map(point); } +QT_DEPRECATED_VERSION_X_6_1("Use matrix.map(point) instead") inline QPointF operator*(const QMatrix4x4& matrix, const QPointF& point) { return matrix.map(point); } +#endif + inline QMatrix4x4 operator-(const QMatrix4x4& matrix) { QMatrix4x4 m(Qt::Uninitialized); |