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authorDenis Dzyubenko <denis.dzyubenko@nokia.com>2009-11-04 13:37:45 (GMT)
committerDenis Dzyubenko <denis.dzyubenko@nokia.com>2009-11-05 11:54:43 (GMT)
commit847be4eadc3bfc92daad728ce9f70e658e380556 (patch)
tree80c260288d06d4acf988c1c4140d02f1c980ee2e /src/gui/kernel/qstandardgestures.cpp
parent70c1c87a3df52e510413c3e8512d9e55df00e7bd (diff)
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Improved pinch gesture.
Made sure we emit the same values for the pinch gesture as on Mac. Reviewed-by: trustme
Diffstat (limited to 'src/gui/kernel/qstandardgestures.cpp')
-rw-r--r--src/gui/kernel/qstandardgestures.cpp8
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