From f25dda51dff8f63565013828e26a6ffa778ed612 Mon Sep 17 00:00:00 2001
From: Marco Martin <notmart@gmail.com>
Date: Thu, 3 Sep 2009 09:58:01 +0000
Subject: [PATCH] when there are no scrollbars just ignore wheel events
 BUG:205879

svn path=/trunk/KDE/kdelibs/; revision=1019292
---
 widgets/textbrowser.cpp | 11 +++++++++++
 widgets/textbrowser.h   |  1 +
 2 files changed, 12 insertions(+)

diff --git a/widgets/textbrowser.cpp b/widgets/textbrowser.cpp
index bce10249b..10bab644f 100644
--- a/widgets/textbrowser.cpp
+++ b/widgets/textbrowser.cpp
@@ -21,6 +21,7 @@
 
 #include <QPainter>
 #include <QScrollBar>
+#include <QGraphicsSceneWheelEvent>
 
 #include <kmimetype.h>
 #include <ktextbrowser.h>
@@ -154,6 +155,16 @@ void TextBrowser::resizeEvent(QGraphicsSceneResizeEvent *event)
     QGraphicsProxyWidget::resizeEvent(event);
 }
 
+void TextBrowser::wheelEvent(QGraphicsSceneWheelEvent *event)
+{
+    if (d->native->verticalScrollBarPolicy() == Qt::ScrollBarAlwaysOff &&
+        d->native->horizontalScrollBarPolicy() == Qt::ScrollBarAlwaysOff) {
+        event->ignore();
+    } else {
+        QGraphicsProxyWidget::wheelEvent(event);
+    }
+}
+
 } // namespace Plasma
 
 #include <textbrowser.moc>
diff --git a/widgets/textbrowser.h b/widgets/textbrowser.h
index 38dadd49f..2ae1d421e 100644
--- a/widgets/textbrowser.h
+++ b/widgets/textbrowser.h
@@ -99,6 +99,7 @@ Q_SIGNALS:
 
 protected:
     void resizeEvent(QGraphicsSceneResizeEvent *event);
+    void wheelEvent(QGraphicsSceneWheelEvent *event);
 
 private:
     TextBrowserPrivate * const d;