From 19fdf90585173b43831993e4d3c00fef8fe5ae6e Mon Sep 17 00:00:00 2001
From: Dean Lee <deanlee3@gmail.com>
Date: Wed, 9 Oct 2024 02:20:29 +0800
Subject: [PATCH] cabana: fix mouse wheel not scrolling charts when hovering
 over tips (#33747)

fix mouse wheel not scrolling charts when hovering over tips
---
 tools/cabana/chart/chartswidget.cc | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/tools/cabana/chart/chartswidget.cc b/tools/cabana/chart/chartswidget.cc
index 27846f9c92..8154a85d6b 100644
--- a/tools/cabana/chart/chartswidget.cc
+++ b/tools/cabana/chart/chartswidget.cc
@@ -434,7 +434,9 @@ void ChartsWidget::alignCharts() {
 }
 
 bool ChartsWidget::eventFilter(QObject *o, QEvent *e) {
-  if (value_tip_visible_ && e->type() == QEvent::MouseMove) {
+  if (!value_tip_visible_) return false;
+
+  if (e->type() == QEvent::MouseMove) {
     bool on_tip = qobject_cast<TipLabel *>(o) != nullptr;
     auto global_pos = static_cast<QMouseEvent *>(e)->globalPos();
 
@@ -449,6 +451,11 @@ bool ChartsWidget::eventFilter(QObject *o, QEvent *e) {
     }
 
     showValueTip(-1);
+  } else if (e->type() == QEvent::Wheel) {
+    if (auto tip = qobject_cast<TipLabel *>(o)) {
+      // Forward the event to the parent widget
+      QCoreApplication::sendEvent(tip->parentWidget(), e);
+    }
   }
   return false;
 }