QLineF: mark angle(const QLineF&) as deprecated

QLineF::angle(const QLineF&) was deprecated during Qt4 times but not
decorated with QT_DEPRECATED_X. Add this so it can be removed with Qt6

Change-Id: I8950b646cc5fa8206e47bdd16647d17d615f6c6a
Reviewed-by: Lars Knoll <lars.knoll@qt.io>

1 files changed, 3 insertions, 6 deletions

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()