From 89fca06bdb2696129a241ab02a4dddba483c46a2 Mon Sep 17 00:00:00 2001
From: Aleix Pol <aleixpol@kde.org>
Date: Fri, 3 Jul 2020 15:44:13 +0000
Subject: [PATCH] Make sure tablet coordinates take decorations into account

Fixes a small awkward offset on some applicaitons.

BUG: 423833


(cherry picked from commit 311094ad8be4c76df2a4655fe71e7085fa9c4e14)
---
 input.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/input.cpp b/input.cpp
index 2fadcb4c68..0c7cbce92b 100644
--- a/input.cpp
+++ b/input.cpp
@@ -1563,7 +1563,7 @@ static KWaylandServer::SeatInterface *findSeat()
 }
 
 /**
- * Useful when there's no proper tablet support on the clients
+ * Handles input coming from a tablet device (e.g. wacom) often with a pen
  */
 class TabletInputFilter : public QObject, public InputEventFilter
 {
@@ -1715,7 +1715,7 @@ public:
 
         switch (event->type()) {
         case QEvent::TabletMove: {
-            const auto pos = event->globalPosF() - toplevel->pos();
+            const auto pos = event->globalPosF() - toplevel->bufferGeometry().topLeft();
             tool->sendMotion(pos);
             m_cursorByTool[tool]->setPos(event->globalPos());
             break;