diff options
| -rw-r--r-- | src/gui/kernel/qstandardgestures.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/gui/kernel/qstandardgestures.cpp b/src/gui/kernel/qstandardgestures.cpp index 79346ed..a0055a1 100644 --- a/src/gui/kernel/qstandardgestures.cpp +++ b/src/gui/kernel/qstandardgestures.cpp @@ -216,7 +216,13 @@ QGestureRecognizer::Result QPinchGestureRecognizer::recognize(QGesture *state, d->totalScaleFactor += d->scaleFactor - d->lastScaleFactor; d->changeFlags |= QPinchGesture::ScaleFactorChanged; - const qreal rotationAngle = -line.angle(); + qreal angle = QLineF(p1.screenPos(), p2.screenPos()).angle(); + if (angle > 180) + angle -= 360; + qreal startAngle = QLineF(p1.startScreenPos(), p2.startScreenPos()).angle(); + if (startAngle > 180) + startAngle -= 360; + const qreal rotationAngle = startAngle - angle; if (d->isNewSequence) d->lastRotationAngle = rotationAngle; else |