Make QCursor::setPos() use the correct screen

setPos() takes a screen argument, however this argument
indicates which cursor should be moved only and is
not usable as an argument to toNativePixels() since
the position may be on a sibling screen.

Add call to QScreen::virtualSiblingAt to get the target
screen.

Task-number: QTBUG-99009
Pick-to: 6.3 6.2 5.15
Change-Id: I8714ebc93a283c58bc67911315f787c484fb0dd8
Reviewed-by: Liang Qi <liang.qi@qt.io>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>

1 files changed, 19 insertions, 0 deletions

diff --git a/tests/auto/gui/kernel/qhighdpi/tst_qhighdpi.cpp b/tests/auto/gui/kernel/qhighdpi/tst_qhighdpi.cpp
index b732954230..cd721f249b 100644
--- a/tests/auto/gui/kernel/qhighdpi/tst_qhighdpi.cpp
+++ b/tests/auto/gui/kernel/qhighdpi/tst_qhighdpi.cpp
@@ -76,6 +76,8 @@ private slots:
     void mouseEvents();
     void mouseVelocity();
     void mouseVelocity_data();
+    void setCursor();
+    void setCursor_data();
 };
 
 /// Offscreen platform plugin test setup
@@ -805,5 +807,22 @@ void tst_QHighDpi::mouseVelocity()
     }
 }
 
+void tst_QHighDpi::setCursor_data()
+{
+    standardScreenDpiTestData();
+}
+
+void tst_QHighDpi::setCursor()
+{
+    QFETCH(QList<qreal>, dpiValues);
+    std::unique_ptr<QGuiApplication> app(createStandardOffscreenApp(dpiValues));
+
+    for (QScreen *screen : app->screens()) {
+        QPoint center = screen->geometry().center();
+        QCursor::setPos(center.x(), center.y());
+        QCOMPARE(QCursor::pos(), center);
+    }
+}
+
 #include "tst_qhighdpi.moc"
 QTEST_APPLESS_MAIN(tst_QHighDpi);