From 65b012ebe914da495bc53f9a9ed0a6dc3fb07582 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20L=C3=BCbking?= <thomas.luebking@gmail.com>
Date: Wed, 8 Aug 2012 19:52:38 +0200
Subject: [PATCH] hide horizontal wheel events from the deco list

BUG: 304799
FIXED-IN: 4.9.1
REVIEW: 105934
---
 kcmkwin/kwindecoration/kwindecoration.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/kcmkwin/kwindecoration/kwindecoration.cpp b/kcmkwin/kwindecoration/kwindecoration.cpp
index 34d9b48261..1f7a20969b 100644
--- a/kcmkwin/kwindecoration/kwindecoration.cpp
+++ b/kcmkwin/kwindecoration/kwindecoration.cpp
@@ -121,6 +121,7 @@ KWinDecorationModule::KWinDecorationModule(QWidget* parent, const QVariantList &
     connect(m_ui->decorationList->verticalScrollBar(), SIGNAL(valueChanged(int)), SLOT(updateViewPosition(int)));
 
     m_ui->decorationList->installEventFilter(this);
+    m_ui->decorationList->viewport()->installEventFilter(this);
 
     KAboutData *about =
         new KAboutData(I18N_NOOP("kcmkwindecoration"), 0,
@@ -404,6 +405,10 @@ bool KWinDecorationModule::eventFilter(QObject *o, QEvent *e)
                 return true;
             }
         }
+    } else if (m_ui->decorationList->viewport()) {
+        if (e->type() == QEvent::Wheel) {
+            return static_cast<QWheelEvent*>(e)->orientation() == Qt::Horizontal;
+        }
     }
     return KCModule::eventFilter(o, e);
 }