From dbb095a47c0b7bc70ef7326062200c8f2e302901 Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Fri, 3 Apr 2020 15:11:24 +0200
Subject: [PATCH] Gui: [skip ci] disable workaround to avoid handling an event
 twice because it leads to a regression on macOS

---
 src/Gui/Quarter/QuarterWidget.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/Gui/Quarter/QuarterWidget.cpp b/src/Gui/Quarter/QuarterWidget.cpp
index 87ab74e4e7..b76266b0b7 100644
--- a/src/Gui/Quarter/QuarterWidget.cpp
+++ b/src/Gui/Quarter/QuarterWidget.cpp
@@ -1002,10 +1002,17 @@ bool QuarterWidget::viewportEvent(QEvent* event)
             bool ok = QGraphicsView::viewportEvent(event);
             // Avoid that wheel events are handled twice
             // https://forum.freecadweb.org/viewtopic.php?f=3&t=44822
+            // However, this workaround seems to cause a regression on macOS
+            // so it's disabled for this platform.
+            // https://forum.freecadweb.org/viewtopic.php?f=4&t=44855
+#if defined(Q_OS_MAC)
+            Q_UNUSED(ok)
+#else
             if (event->type() == QEvent::Wheel) {
                 event->setAccepted(ok);
                 return ok;
             }
+#endif
             return false;
         }
     }