From 334a08dd2dafaa3784ab9430437266df521e4657 Mon Sep 17 00:00:00 2001
From: Christian Parpart <christian@parpart.family>
Date: Mon, 16 Aug 2021 13:22:37 +0200
Subject: [PATCH] Temporary work-around for #394 (mouse wheel issue with
 Alt-modifier).

---
 src/contour/helper.cpp | 36 +++++++++++++++++++++++++++---------
 1 file changed, 27 insertions(+), 9 deletions(-)

diff --git a/src/contour/helper.cpp b/src/contour/helper.cpp
index d389ef42c0..c365854489 100644
--- a/src/contour/helper.cpp
+++ b/src/contour/helper.cpp
@@ -183,16 +183,34 @@ void sendWheelEvent(QWheelEvent* _event, TerminalSession& _session)
 {
     auto const yDelta = [&]() -> int
     {
-//        switch (_event->orientation())
-//        {
-//            case Qt::Orientation::Horizontal:
-//                return _event->pixelDelta().x() ? _event->pixelDelta().x()
-//                                                : _event->angleDelta().x();
-//            case Qt::Orientation::Vertical:
-//                return _event->pixelDelta().y() ? _event->pixelDelta().y()
-//                                                : _event->angleDelta().y();
-//        }
+        #if 1   // FIXME: Temporarily addressing a really bad Qt implementation detail
+                // as tracked here:
+                // https://github.com/contour-terminal/contour/issues/394
+
+        if (_event->pixelDelta().y())
+            return _event->pixelDelta().y();
+        if (_event->angleDelta().y())
+            return _event->angleDelta().y();
+
+        if (_event->pixelDelta().x())
+            return _event->pixelDelta().x();
+        if (_event->angleDelta().x())
+            return _event->angleDelta().x();
+
+        return 0;
+
+        #else
+        // switch (_event->orientation())
+        // {
+        //     case Qt::Orientation::Horizontal:
+        //         return _event->pixelDelta().x() ? _event->pixelDelta().x()
+        //                                         : _event->angleDelta().x();
+        //     case Qt::Orientation::Vertical:
+        //         return _event->pixelDelta().y() ? _event->pixelDelta().y()
+        //                                         : _event->angleDelta().y();
+        // }
         return _event->angleDelta().y();
+        #endif
     }();
 
     if (yDelta)