From 281ee04a825c4d4ba4ca88929ee572df0d1a4cfd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tor=20Arne=20Vestb=C3=B8?= <tor.arne.vestbo@qt.io>
Date: Tue, 15 Aug 2023 21:49:03 +0200
Subject: [PATCH] embeddedwindows: Mask the painting manually by applying a
 clip
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QWindow::setMask() is not guaranteed to turn the masked out areas
transparent, and it's up to the client to ensure this during
painting.

Change-Id: I1155b3ad095152a993532f2290cacb670e20daa7
Reviewed-by: Liang Qi <liang.qi@qt.io>
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
(cherry picked from commit 5ce4aecd495667a50dd121930f9ca39dc07cfc36)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
---
 tests/manual/embeddedwindows/main.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tests/manual/embeddedwindows/main.cpp b/tests/manual/embeddedwindows/main.cpp
index 98f40e358c6..904839cfa3b 100644
--- a/tests/manual/embeddedwindows/main.cpp
+++ b/tests/manual/embeddedwindows/main.cpp
@@ -33,6 +33,8 @@ protected:
     {
         QPainter painter(this);
         painter.setCompositionMode(QPainter::CompositionMode_Source);
+        if (!mask().isNull())
+            painter.setClipRegion(mask());
         painter.fillRect(QRect(0, 0, width(), height()),
             m_pressed ? QGradient(QGradient::JuicyPeach) : m_brush);
     }