From df7ca74b489471ba275660815fc668544b5899bf Mon Sep 17 00:00:00 2001
From: Pino Toscano <pino@kde.org>
Date: Fri, 22 Aug 2008 14:07:37 +0000
Subject: [PATCH] skip the widget mouse move event when the is no item under
 the mouse, or not even a previously selected one

svn path=/trunk/KDE/kdegraphics/okular/; revision=850901
---
 ui/thumbnaillist.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/ui/thumbnaillist.cpp b/ui/thumbnaillist.cpp
index 67ff91cff..bae9d83eb 100644
--- a/ui/thumbnaillist.cpp
+++ b/ui/thumbnaillist.cpp
@@ -709,6 +709,9 @@ void ThumbnailListPrivate::mouseMoveEvent( QMouseEvent * e )
         return e->ignore();
 
     ThumbnailWidget* theItem = item ? item : mouseGrabItem;
+    // no item under the mouse or previously selected
+    if ( !theItem )
+        return e->ignore();
     QRect r = theItem->rect();
     int margin = ThumbnailWidget::margin();
     QPoint p = e->pos() - theItem->pos();