diff options
| -rw-r--r-- | src/gui/kernel/qguiapplication.cpp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/gui/kernel/qguiapplication.cpp b/src/gui/kernel/qguiapplication.cpp index 268f5cee1d..a57b34a3d9 100644 --- a/src/gui/kernel/qguiapplication.cpp +++ b/src/gui/kernel/qguiapplication.cpp @@ -2417,7 +2417,19 @@ void QGuiApplicationPrivate::processEnterEvent(QWindowSystemInterfacePrivate::En currentMouseWindow = e->enter; + // TODO later: EnterEvent must report _which_ mouse entered the window; for now we assume primaryPointingDevice() QEnterEvent event(e->localPos, e->localPos, e->globalPos); + + // Since we don't always track mouse moves that occur outside a window, any residual velocity + // stored in the persistent QEventPoint may be inaccurate (especially in fast-moving autotests). + // Reset the Kalman filter so that the velocity of the first mouse event after entering the window + // will be based on a zero residual velocity (but the result can still be non-zero if the mouse + // moves to a different position from where this enter event occurred; tests often do that). + const QPointingDevicePrivate *devPriv = QPointingDevicePrivate::get(event.pointingDevice()); + auto epd = devPriv->queryPointById(event.points().first().id()); + Q_ASSERT(epd); + QMutableEventPoint::from(epd->eventPoint).setVelocity({}); + QCoreApplication::sendSpontaneousEvent(e->enter.data(), &event); } |