From ebe5879723e4cf734a2315ccc9513fd28256f077 Mon Sep 17 00:00:00 2001
From: Alessandro Portale <alessandro.portale@qt.io>
Date: Thu, 20 Jan 2022 16:37:28 +0100
Subject: [PATCH] Core: Fix redrawing of the current area in ListItemDelegate

If the ItemView is scrolled during the hover animation (e.g. via
mouse wheel), the previously stored Item QRect is not valid,
anymore.

Change-Id: I97b81cf063479a988221142474c9f511d02414d8
Reviewed-by: Christian Stenger <christian.stenger@qt.io>
---
 src/plugins/coreplugin/welcomepagehelper.cpp | 3 +--
 src/plugins/coreplugin/welcomepagehelper.h   | 1 -
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/plugins/coreplugin/welcomepagehelper.cpp b/src/plugins/coreplugin/welcomepagehelper.cpp
index 0fb8e0fa3c3..42d23773b3c 100644
--- a/src/plugins/coreplugin/welcomepagehelper.cpp
+++ b/src/plugins/coreplugin/welcomepagehelper.cpp
@@ -406,7 +406,6 @@ void ListItemDelegate::paint(QPainter *painter, const QStyleOptionViewItem &opti
             m_previousIndex = index;
             m_blurredThumbnail = QPixmap();
             m_startTime.start();
-            m_currentArea = rc;
             m_currentWidget = qobject_cast<QAbstractItemView *>(
                 const_cast<QWidget *>(option.widget));
         }
@@ -580,7 +579,7 @@ void ListItemDelegate::clickAction(const ListItem *) const
 void ListItemDelegate::goon()
 {
     if (m_currentWidget)
-        m_currentWidget->viewport()->update(m_currentArea);
+        m_currentWidget->update(m_previousIndex);
 }
 
 } // namespace Core
diff --git a/src/plugins/coreplugin/welcomepagehelper.h b/src/plugins/coreplugin/welcomepagehelper.h
index dc3a15a6102..d672a1b7257 100644
--- a/src/plugins/coreplugin/welcomepagehelper.h
+++ b/src/plugins/coreplugin/welcomepagehelper.h
@@ -159,7 +159,6 @@ protected:
 private:
     mutable QPersistentModelIndex m_previousIndex;
     mutable QElapsedTimer m_startTime;
-    mutable QRect m_currentArea;
     mutable QPointer<QAbstractItemView> m_currentWidget;
     mutable QVector<QPair<QString, QRect>> m_currentTagRects;
     mutable QPixmap m_blurredThumbnail;