From 85777aaac261d0e04aa1da43d59da72fc2336b13 Mon Sep 17 00:00:00 2001
From: Vlad Zahorodnii <vladzzag@gmail.com>
Date: Sun, 29 Sep 2019 11:44:47 +0300
Subject: [PATCH] [wayland] Ensure that repaints_region is in frame-local
 coordinates

Summary:
The repaints region is in frame-local coordinates, i.e. relative to the
top-left corner of the frame geometry.

Reviewers: #kwin, romangg

Reviewed By: #kwin, romangg

Subscribers: davidedmundson, kwin

Tags: #kwin

Maniphest Tasks: T10867

Differential Revision: https://phabricator.kde.org/D24457
---
 xdgshellclient.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/xdgshellclient.cpp b/xdgshellclient.cpp
index a8def39ef1..cc1b65d151 100644
--- a/xdgshellclient.cpp
+++ b/xdgshellclient.cpp
@@ -389,7 +389,10 @@ void XdgShellClient::setOpacity(double opacity)
 
 void XdgShellClient::addDamage(const QRegion &damage)
 {
-    repaints_region += damage.translated(clientPos());
+    const int offsetX = m_bufferGeometry.x() - frameGeometry().x();
+    const int offsetY = m_bufferGeometry.y() - frameGeometry().y();
+    repaints_region += damage.translated(offsetX, offsetY);
+
     Toplevel::addDamage(damage);
 }