5 files changed, 10 insertions, 13 deletions
diff --git a/examples/widgets/painting/affine/xform.cpp b/examples/widgets/painting/affine/xform.cpp
index dc01acf453..482e0f3268 100644
--- a/examples/widgets/painting/affine/xform.cpp
+++ b/examples/widgets/painting/affine/xform.cpp
@@ -160,10 +160,7 @@ void XFormView::updateCtrlPoints(const QPolygonF &points)
     ctrlPoints = points;
 
     QLineF line(ctrlPoints.at(0), ctrlPoints.at(1));
-    m_rotation = line.angle(QLineF(0, 0, 1, 0));
-    if (line.dy() < 0)
-        m_rotation = 360 - m_rotation;
-
+    m_rotation = 360 - QLineF(0, 0, 1, 0).angleTo(line);
     if (trans.isNull())
         emit rotationChanged(int(m_rotation*10));
 }
diff --git a/examples/widgets/painting/gradients/gradients.cpp b/examples/widgets/painting/gradients/gradients.cpp
index 7abaef771b..8df45be8d9 100644
--- a/examples/widgets/painting/gradients/gradients.cpp
+++ b/examples/widgets/painting/gradients/gradients.cpp
@@ -564,9 +564,7 @@ void GradientRenderer::paint(QPainter *p)
 
     } else {
         QLineF l(pts.at(0), pts.at(1));
-        qreal angle = l.angle(QLineF(0, 0, 1, 0));
-        if (l.dy() > 0)
-            angle = 360 - angle;
+        qreal angle = QLineF(0, 0, 1, 0).angleTo(l);
         g = QConicalGradient(pts.at(0), angle);
     }
 
diff --git a/src/corelib/tools/qline.cpp b/src/corelib/tools/qline.cpp
index 949f63ea15..6f3c22a6ec 100644
--- a/src/corelib/tools/qline.cpp
+++ b/src/corelib/tools/qline.cpp
@@ -805,6 +805,7 @@ qreal QLineF::angleTo(const QLineF &l) const
         return delta_normalized;
 }
 
+#if QT_DEPRECATED_SINCE(5, 14)
 /*!
   \fn qreal QLineF::angle(const QLineF &line) const
 
@@ -837,6 +838,7 @@ qreal QLineF::angle(const QLineF &l) const
     if (cos_line >= -1.0 && cos_line <= 1.0) rad = qAcos( cos_line );
     return rad * 360 / M_2PI;
 }
+#endif
 
 
 #ifndef QT_NO_DEBUG_STREAM
diff --git a/src/corelib/tools/qline.h b/src/corelib/tools/qline.h
index 6361c1af9f..14980b60a0 100644
--- a/src/corelib/tools/qline.h
+++ b/src/corelib/tools/qline.h
@@ -251,7 +251,10 @@ public:
     // ### Qt 6: rename intersects() or intersection() and rename IntersectType IntersectionType
     IntersectType intersect(const QLineF &l, QPointF *intersectionPoint) const;
 
+#if QT_DEPRECATED_SINCE(5, 14)
+    QT_DEPRECATED_X("Use angleTo() instead, take care that the return value is between 0 and 360 degree.")
     qreal angle(const QLineF &l) const;
+#endif
 
     Q_DECL_CONSTEXPR inline QPointF pointAt(qreal t) const;
     inline void translate(const QPointF &p);
diff --git a/src/gui/painting/qstroker.cpp b/src/gui/painting/qstroker.cpp
index c01531caf2..f8f8d72d14 100644
--- a/src/gui/painting/qstroker.cpp
+++ b/src/gui/painting/qstroker.cpp
@@ -173,15 +173,12 @@ template <class Iterator> bool qt_stroke_side(Iterator *it, QStroker *stroker,
                                               bool capFirst, QLineF *startTangent);
 
 /*******************************************************************************
- * QLineF::angle gives us the smalles angle between two lines. Here we
- * want to identify the line's angle direction on the unit circle.
+ * QLineF::angleTo gives us the angle between two lines with respecting the direction.
+ * Here we want to identify the line's angle direction on the unit circle.
  */
 static inline qreal adapted_angle_on_x(const QLineF &line)
 {
-    qreal angle = line.angle(QLineF(0, 0, 1, 0));
-    if (line.dy() > 0)
-        angle = 360 - angle;
-    return angle;
+    return QLineF(0, 0, 1, 0).angleTo(line);
 }
 
 QStrokerOps::QStrokerOps()