Switch to side-by-side view

--- a/src/qtgui/preview_w.h
+++ b/src/qtgui/preview_w.h
@@ -1,7 +1,4 @@
-#ifndef _PREVIEW_W_H_INCLUDED_
-#define _PREVIEW_W_H_INCLUDED_
-/* @(#$Id: preview_w.h,v 1.20 2008-12-16 14:20:10 dockes Exp $  (C) 2006 J.F.Dockes */
-/*
+/* Copyright (C) 2006 J.F.Dockes 
  *   This program is free software; you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
  *   the Free Software Foundation; either version 2 of the License, or
@@ -17,6 +14,8 @@
  *   Free Software Foundation, Inc.,
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  */
+#ifndef _PREVIEW_W_H_INCLUDED_
+#define _PREVIEW_W_H_INCLUDED_
 
 #include <stdio.h>