Get rid of QMutableEventPoint::stationaryWithModifiedProperty

Omitting stationary points from touch events is such a marginal
optimization that this code probably isn't worth maintaining.
It wasn't implemented correctly this time either, according to the
tst_QQuickMultiPointTouchArea::stationaryTouchWithChangingPressure()
test.

[ChangeLog][QtGui][QPointerEvent] We no longer attempt to avoid
delivery of stationary points within QTouchEvent: every pressed point
is now included in every TouchUpdate event.

Task-number: QTBUG-77142
Change-Id: If1fd666fb3057a17e0dffdd7ca7138693126b02b
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>

1 files changed, 0 insertions, 6 deletions

diff --git a/src/gui/kernel/qguiapplication.cpp b/src/gui/kernel/qguiapplication.cpp
index ffb9b26ee7..a0ab112c8e 100644
--- a/src/gui/kernel/qguiapplication.cpp
+++ b/src/gui/kernel/qguiapplication.cpp
@@ -2856,7 +2856,6 @@ void QGuiApplicationPrivate::processTouchEvent(QWindowSystemInterfacePrivate::To
 
     self->lastTouchType = e->touchType;
 
-    bool stationaryTouchPointChangedProperty = false;
     QPointer<QWindow> window = e->window;  // the platform hopefully tells us which window received the event
     QVarLengthArray<QMutableTouchEvent, 2> touchEvents;
 
@@ -2944,11 +2943,6 @@ void QGuiApplicationPrivate::processTouchEvent(QWindowSystemInterfacePrivate::To
         case QEventPoint::State::Released:
             eventType = QEvent::TouchEnd;
             break;
-        case QEventPoint::State::Stationary:
-            // don't send the event if nothing changed
-            if (!stationaryTouchPointChangedProperty)
-                continue;
-            Q_FALLTHROUGH();
         default:
             eventType = QEvent::TouchUpdate;
             break;