From b04581b64e5db0c8ae73688ff39447fe6ece22a6 Mon Sep 17 00:00:00 2001
From: Olivier Goffart <ogoffart@sixtyfps.io>
Date: Mon, 30 Aug 2021 12:19:57 +0200
Subject: [PATCH] Fix panic on mouse wheel on a NativeSlider

move the handle instead of panicking
---
 sixtyfps_runtime/rendering_backends/qt/qt_widgets.rs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/sixtyfps_runtime/rendering_backends/qt/qt_widgets.rs b/sixtyfps_runtime/rendering_backends/qt/qt_widgets.rs
index e0a531228..3774c7647 100644
--- a/sixtyfps_runtime/rendering_backends/qt/qt_widgets.rs
+++ b/sixtyfps_runtime/rendering_backends/qt/qt_widgets.rs
@@ -803,6 +803,13 @@ impl Item for NativeSlider {
                     InputEventResult::EventIgnored
                 }
             }
+            MouseEvent::MouseWheel { delta, .. } if enabled => {
+                let new_val = value + delta.x + delta.y;
+                let new_val = new_val.max(min).min(max);
+                self.value.set(new_val);
+                Self::FIELD_OFFSETS.changed.apply_pin(self).call(&(new_val,));
+                InputEventResult::EventAccepted
+            }
             _ => {
                 assert!(!enabled);
                 data.pressed = 0;