From 7ce5b4f486e60197427d1cecd850f3585e6a8b54 Mon Sep 17 00:00:00 2001
From: Christian Ehrlicher <ch.ehrlicher@gmx.de>
Date: Sat, 23 Nov 2024 20:49:29 +0100
Subject: [PATCH] QWindows11Style: Adjust position of MDI subwindow icon

The y position for the MDI subwindow icon was not calculated correctly
so the icon was not painted vertically centered.

Task-number: QTBUG-130673
Change-Id: I5f9023820a4e4b4288017869ac4088fe2669ce50
Reviewed-by: Wladimir Leuschner <wladimir.leuschner@qt.io>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
(cherry picked from commit 6e29a94b547fbafa69e97ac02aeb33edad63f2ae)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
(cherry picked from commit 1319dcf472b97652883f01bdb411e7719d1cc2e4)
---
 src/plugins/styles/modernwindows/qwindows11style.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/plugins/styles/modernwindows/qwindows11style.cpp b/src/plugins/styles/modernwindows/qwindows11style.cpp
index c7e11b899ea..03f94c73329 100644
--- a/src/plugins/styles/modernwindows/qwindows11style.cpp
+++ b/src/plugins/styles/modernwindows/qwindows11style.cpp
@@ -1921,8 +1921,9 @@ QRect QWindows11Style::subControlRect(ComplexControl control, const QStyleOption
                 break;
             case SC_TitleBarSysMenu:
                 if (titlebar->titleBarFlags & Qt::WindowSystemMenuHint) {
-                    ret.setRect(titlebar->rect.left() + controlWidthMargin + indent, titlebar->rect.top() + iconSize/2,
-                                iconSize, iconSize);
+                    const auto yOfs = titlebar->rect.top() + (titlebar->rect.height() - iconSize) / 2;
+                    ret.setRect(titlebar->rect.left() + controlWidthMargin + indent, yOfs, iconSize,
+                                iconSize);
                 }
                 break;
             default: