From 1da71e5e7d099b429802da67feb405214afa3b38 Mon Sep 17 00:00:00 2001
From: Christian Ehrlicher <ch.ehrlicher@gmx.de>
Date: Sun, 4 May 2025 15:51:23 +0200
Subject: [PATCH] QHeaderView: fix logic in setOffset()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Fix the logic in setOffset() which was accidentally reversed during
fixing of UB during signed overflow.

Amends 49fcac99deea390901000a74deea1c0c690b6ae2.

Coverity-Id: 479557
Pick-to: 6.8 6.5
Fixes: QTBUG-136362
Fixes: QTBUG-136477
Change-Id: Ifc9c80346355b0a9e516effe2ff8b60b1966d67a
Reviewed-by: Thorbjørn Lund Martsum <tmartsum@gmail.com>
(cherry picked from commit e808b38d4bb894f42b7dfe52f1ef67a0d48c23ff)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
---
 src/widgets/itemviews/qheaderview.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/widgets/itemviews/qheaderview.cpp b/src/widgets/itemviews/qheaderview.cpp
index 662e468d3aa..73c448362ac 100644
--- a/src/widgets/itemviews/qheaderview.cpp
+++ b/src/widgets/itemviews/qheaderview.cpp
@@ -429,7 +429,7 @@ void QHeaderView::setOffset(int newOffset)
     const int ndelta = q26::saturate_cast<int>(d->headerOffset - qint64{newOffset});
     d->headerOffset = newOffset;
     if (d->orientation == Qt::Horizontal) {
-        if (isLeftToRight()) {
+        if (isRightToLeft()) {
             if (int r; !qMulOverflow<-1>(ndelta, &r))
                 d->viewport->scroll(r, 0);
             else