From ff48e158ab78899a828645ed3500ef3461390c9f Mon Sep 17 00:00:00 2001
From: Sami Varanka <sami.varanka@qt.io>
Date: Wed, 30 Oct 2024 09:29:14 +0200
Subject: [PATCH] Take Header splitter cursor for QGraphicsProxyWidget

Strangely when a QTreeview is put in GraphicsView using
QGraphicsProxyWidget, QTreeView header splitter cursor does not appears
though section can be resized without that. This change forces
the QGraphicsProxyWidget to take header splitter cursor from lastwidget.

Fixes: QTBUG-128912
Change-Id: I783e8357ae8386af70d28a1495e3b2367921df76
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
(cherry picked from commit 769392c3a8055af996f593dccd85ca3f775b1640)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
---
 src/widgets/graphicsview/qgraphicsproxywidget.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/widgets/graphicsview/qgraphicsproxywidget.cpp b/src/widgets/graphicsview/qgraphicsproxywidget.cpp
index 1ff48141429..fbf66ea02fd 100644
--- a/src/widgets/graphicsview/qgraphicsproxywidget.cpp
+++ b/src/widgets/graphicsview/qgraphicsproxywidget.cpp
@@ -295,6 +295,15 @@ void QGraphicsProxyWidgetPrivate::sendWidgetMouseEvent(QGraphicsSceneMouseEvent
 #endif
     }
 
+#ifndef QT_NO_CURSOR
+    // Keep cursor in sync
+    if (lastWidgetUnderMouse) {
+        QCursor widgetsCursor = lastWidgetUnderMouse->cursor();
+        if (q->cursor() != widgetsCursor)
+            q->setCursor(widgetsCursor);
+    }
+#endif
+
     event->setAccepted(mouseEvent.isAccepted());
 }