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diff --git a/kmail/messagecopyhelper.h b/kmail/messagecopyhelper.h
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+/*
+    Copyright (c) 2007 Volker Krause <vkrause@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 KMAIL_MESSAGECOPYHELPER_H
+#define KMAIL_MESSAGECOPYHELPER_H
+
+#include <qguardedptr.h>
+#include <qobject.h>
+#include <qptrlist.h>
+
+#include <maillistdrag.h>
+
+class KMCommand;
+class KMFolder;
+class KMMsgBase;
+
+namespace KMail {
+
+/**
+  Helper class to copy/move a set of messages defined by their serial
+  numbers from arbitrary folders into a common destination folder.
+*/
+class MessageCopyHelper : public QObject
+{
+  Q_OBJECT
+
+  public:
+    /**
+      Creates new MessageCopyHelper object to copy the given messages
+      to the specified destination folder.
+      @param msgs List of serial numbers.
+      @param dest Destination folder.
+      @param move If set to true, messages will be moved instead of copied
+      @param parent The parent object.
+    */
+    MessageCopyHelper( const QValueList<Q_UINT32> &msgs, KMFolder *dest,
+                       bool move, QObject *parent = 0 );
+
+    /**
+      Converts a MailList into a serial number list.
+    */
+    static QValueList<Q_UINT32> serNumListFromMailList( const KPIM::MailList &list );
+
+    /**
+      Converts a KMMsgsBase* list into a serial number list.
+    */
+    static QValueList<Q_UINT32> serNumListFromMsgList( QPtrList<KMMsgBase> list );
+
+    /**
+      Checks of any of the given messages comes from a read-only source.
+    */
+    static bool inReadOnlyFolder( const QValueList<Q_UINT32> &sernums );
+
+  private slots:
+    void copyCompleted( KMCommand *cmd );
+
+  private:
+    QMap<QGuardedPtr<KMFolder>, int> mOpenFolders;
+};
+
+}
+
+#endif