Begin handling the QEvent refactoring

This is an intermediate step to get Qt Quick working again after
qtbase 4e400369c08db251cd489fec1229398c224d02b4.

- QQuickEventPoint::id() is no longer unique across devices, because now
  eventPoint.event.device tells which specific device the event comes from.
  (In Qt 5, we could not yet add the device pointer to QInputEvent.)
- However, MultiPointTouchArea's docs say that each pointId is unique,
  and so do the HandlerPoint docs (for similar use cases with PointHandler).
  So we still need the same hack using a Qt-specific short device ID
  to unique-ify the QEventPoint::id(). Now we use the device index
  in QInputDevice::devices() as the short ID.
- Otherwise, we trust QInputDevice::systemId() and QEventPoint::id()
  more than before.
- Use QMutable* classes from qevent_p.h to continue using setters
  that were in QTouchEvent before, etc.  But setTouchPoints() is
  not there, so we have to make new event instances in a couple of cases.
- QGuiApplicationPrivate::setMouseEventCapsAndVelocity() and
  setMouseEventSource() are gone.
- Use (compiler-written) event copy constructors when possible.

Task-number: QTBUG-72173
Change-Id: I3915dc535ae4c5a81cbf333aba9355f01c420c15
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

1 files changed, 3 insertions, 2 deletions

diff --git a/tests/auto/quick/qquickmultipointtoucharea/tst_qquickmultipointtoucharea.cpp b/tests/auto/quick/qquickmultipointtoucharea/tst_qquickmultipointtoucharea.cpp
index 0806914763..47f7943d12 100644
--- a/tests/auto/quick/qquickmultipointtoucharea/tst_qquickmultipointtoucharea.cpp
+++ b/tests/auto/quick/qquickmultipointtoucharea/tst_qquickmultipointtoucharea.cpp
@@ -35,6 +35,7 @@
 #include <qpa/qwindowsysteminterface.h>
 #include <QtQuick/qquickview.h>
 #include <QtGui/QScreen>
+#include <QtGui/private/qevent_p.h>
 #include "../../shared/util.h"
 #include "../shared/viewtestutil.h"
 
@@ -1373,9 +1374,9 @@ void tst_QQuickMultiPointTouchArea::stationaryTouchWithChangingPressure() // QTB
     QCOMPARE(point1->pressed(), false);
 
     QPoint p1(20,100);
-    QEventPoint tp1(1);
+    QMutableEventPoint tp1(1);
 
-    tp1.setScreenPos(window->mapToGlobal(p1));
+    tp1.setGlobalPosition(window->mapToGlobal(p1));
     tp1.setState(QEventPoint::State::Pressed);
     tp1.setPressure(0.5);
     qt_handleTouchEvent(window.data(), device, {tp1});