diff --git a/src/kwidgetitemdelegatepool_p.h b/src/kwidgetitemdelegatepool_p.h
index a7dc9f1..75676c1 100644
--- a/src/kwidgetitemdelegatepool_p.h
+++ b/src/kwidgetitemdelegatepool_p.h
@@ -1,105 +1,108 @@
 /**
   * This file is part of the KDE project
   * Copyright (C) 2008 Rafael Fernández López <ereslibre@kde.org>
   * Copyright (C) 2008 Kevin Ottens <ervin@kde.org>
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Library General Public
   * License as published by the Free Software Foundation; either
   * version 2 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Library General Public License for more details.
   *
   * You should have received a copy of the GNU Library General Public License
   * along with this library; see the file COPYING.LIB.  If not, write to
   * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   * Boston, MA 02110-1301, USA.
   */
 
 #ifndef KWIDGETITEMDELEGATEPOOL_P_H
 #define KWIDGETITEMDELEGATEPOOL_P_H
 
 #include <QModelIndex>
 #include <QHash>
 #include <QList>
 
 class QWidget;
 class QStyleOptionViewItem;
 class KWidgetItemDelegate;
 class KWidgetItemDelegatePoolPrivate;
 
 /**
   * @internal
   */
 class KWidgetItemDelegatePool
 {
 public:
     enum UpdateWidgetsEnum {
         UpdateWidgets = 0,
         NotUpdateWidgets
     };
 
     /**
       * Creates a new ItemDelegatePool.
       *
       * @param delegate the ItemDelegate for this pool.
       */
 
     KWidgetItemDelegatePool(KWidgetItemDelegate *delegate);
 
     /**
       * Destroys an ItemDelegatePool.
       */
     ~KWidgetItemDelegatePool();
 
+    KWidgetItemDelegatePool(const KWidgetItemDelegatePool &) = delete;
+    KWidgetItemDelegatePool &operator=(const KWidgetItemDelegatePool &) = delete;
+
     /**
       * @brief Returns the widget associated to @p index and @p widget
       * @param index The index to search into.
       * @param option a QStyleOptionViewItem.
       * @return A QList of the pointers to the widgets found.
       * @internal
       */
     QList<QWidget *> findWidgets(const QPersistentModelIndex &index, const QStyleOptionViewItem &option,
                                  UpdateWidgetsEnum updateWidgets = UpdateWidgets) const;
 
     /**
       * @internal
       */
     QList<QWidget *> invalidIndexesWidgets() const;
 
     /**
       * @internal
       */
     void fullClear();
 
 private:
     friend class KWidgetItemDelegate;
     friend class KWidgetItemDelegatePrivate;
     KWidgetItemDelegatePoolPrivate *const d;
 };
 
 class KWidgetItemDelegateEventListener;
 
 /**
   * @internal
   */
 class KWidgetItemDelegatePoolPrivate
 {
 public:
 
     KWidgetItemDelegatePoolPrivate(KWidgetItemDelegate *d);
 
     KWidgetItemDelegate *delegate;
     KWidgetItemDelegateEventListener *eventListener;
 
     QList<QList<QWidget *> > allocatedWidgets;
     QHash<QPersistentModelIndex, QList<QWidget *> > usedWidgets;
     QHash<QWidget *, QPersistentModelIndex> widgetInIndex;
 
     bool clearing;
 };
 
 #endif