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diff --git a/bibletime/backend/cswordtreekey.h b/bibletime/backend/cswordtreekey.h
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+++ b/bibletime/backend/cswordtreekey.h
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+/*********
+*
+* This file is part of BibleTime's source code, http://www.bibletime.info/.
+*
+* Copyright 1999-2007 by the BibleTime developers.
+* The BibleTime source code is licensed under the GNU General Public License version 2.0.
+*
+**********/
+
+
+
+#ifndef CSWORDTREEKEYIDX_H
+#define CSWORDTREEKEYIDX_H
+
+//BibleTime includes
+#include "cswordkey.h"
+
+//Sword includes
+#include <treekeyidx.h>
+
+class CSwordModuleInfo;
+
+/** BibleTime's implementation of Sword's TreeKeyIdx class.
+ * @short CSwordKey implementation for Sword's TreeKey
+ * @author The BibleTime team
+ */
+
+class CSwordTreeKey : public CSwordKey, public sword::TreeKeyIdx {
+
+public:
+	/** Constructor of this CSwordKey implementation.
+	 * @param k The Sword tree key which belongs to this key
+	 * @param module The module which belongs to this key
+	 */
+	CSwordTreeKey( const sword::TreeKeyIdx *k, CSwordModuleInfo* module );
+	/** Copy constructor.
+	 */
+	CSwordTreeKey( const CSwordTreeKey& k );
+	/** The module which belongs to this key.
+	 * @return The module.
+	 */
+	virtual CSwordModuleInfo* const module( CSwordModuleInfo* const newModule );
+	/** Copy method.
+	* @return A new copy of this object.
+	*/
+	virtual CSwordTreeKey* copy() const;
+	/**
+	* Returns the last part of the current key as unicode decoded QString.
+	* Use this instead of TreeKeyIdx::getLocalName() to avoid encoding problems.
+	*/
+	virtual const QString getLocalNameUnicode() const;
+	/**
+	* Returns the current key
+	*/
+	virtual const QString key() const;
+	/**
+	* Set the key. If the parameter is empty or null, the key will be set to "/"
+	*/
+	virtual const bool key( const QString& key );
+	/**
+	* Set/get the key. If the parameter is not set (means equal to QString::null)
+	* the used key is returned. Otherwise the key is set and the new on ei returned.
+	*/
+	virtual const bool key( const char* key );
+	/**
+	* Assignment operator.
+	*/
+	virtual CSwordTreeKey& operator = (const QString& keyname );
+protected:
+	/**Get the unencoded key for use by Sword.*/
+	virtual const char * rawKey() const;
+};
+
+#endif