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+/******************************************************************************
+ *  versekey.h - code for class 'versekey'- a standard Biblical verse key
+ *
+ * $Id: treekey.h,v 1.3 2002/04/15 21:26:44 scribe Exp $
+ *
+ * Copyright 1998 CrossWire Bible Society (http://www.crosswire.org)
+ *	CrossWire Bible Society
+ *	P. O. Box 2528
+ *	Tempe, AZ  85280-2528
+ *
+ * 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 version 2.
+ *
+ * This program 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
+ * General Public License for more details.
+ *
+ */
+
+
+#ifndef TREEKEY_H
+#define TREEKEY_H
+
+#include <swkey.h>
+#include <swmacs.h>
+
+#include <defs.h>
+
+
+/**
+ * Class VerseKey
+ * The SWKey implementation used for verse based modules like Bibles or commentaries.
+ */
+class SWDLLEXPORT TreeKey : public SWKey {
+	static SWClass classdef;
+	void init();
+
+public:
+//	TreeKey (const char *ikey = 0);
+//	TreeKey (const SWKey * ikey);
+//	TreeKey (TreeKey const &k);
+	TreeKey () { init(); };
+	~TreeKey () {};
+
+
+	virtual const char *getLocalName() = 0;
+	virtual const char *setLocalName(const char *) = 0;
+
+	virtual const char *getUserData(int *size = 0) = 0;
+	virtual void setUserData(const char *userData, int size = 0) = 0;
+
+	virtual const char *getFullName() const = 0;
+
+	virtual void root() = 0;
+	virtual bool parent() = 0;
+
+	virtual bool firstChild() = 0;
+	virtual bool nextSibling() = 0;
+	virtual bool previousSibling() = 0;
+
+	virtual bool hasChildren() = 0;
+
+	virtual void append() = 0;
+	virtual void appendChild() = 0;
+	virtual void insertBefore() = 0;
+
+	virtual void remove() = 0;
+
+	virtual void setOffset(unsigned long offset) = 0;
+	virtual unsigned long getOffset() const = 0;
+
+	virtual void setText(const char *ikey) = 0;
+	virtual void setPosition(SW_POSITION p) = 0;
+	virtual const char *getText() const = 0;
+	virtual int compare(const SWKey &ikey) = 0;
+	virtual void decrement(int steps = 1) = 0;
+	virtual void increment(int steps = 1) = 0;
+	virtual char Traversable () { return 1; }
+	virtual long Index () const { return getOffset(); }
+	virtual long Index (long iindex) { setOffset(iindex); return getOffset(); }
+
+	SWKEY_OPERATORS
+
+	};
+
+
+#endif