/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org 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 Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

#ifndef X2C_HEAP_HXX
#define X2C_HEAP_HXX

#include "sistr.hxx"

class HeapItem;

class Heap
{
  public:
						Heap(
							unsigned			i_nWidth );
						~Heap();

	void				InsertValue(
							const char *		i_sKey,
							const char *	   	i_sValue );
	HeapItem *		    ReleaseTop();   		/// @return must be deleted by caller of method.

  private:
	typedef HeapItem * Column;

	void				IncColumn();
	Column &			ActiveColumn()			{ return dpColumnsArray[nActiveColumn]; }

	Column *			dpColumnsArray;
	unsigned			nColumnsArraySize;
	unsigned			nActiveColumn;
};


class HeapItem
{
  public:
						HeapItem(
							const char *		i_sKey,
							const char *	   	i_sValue );
						~HeapItem(  );

	bool				operator<(
							const HeapItem &  	i_rOther ) const;
	bool				operator<=(
							const HeapItem &  	i_rOther ) const
												{ return ! (i_rOther < *this); }
	const Simstr &		Value() const;
	const Simstr &		Key() const;
	HeapItem * 		    Next() const;

	void        		SetNext(
							HeapItem *			i_pNext );
  private:
	Simstr				sValue;
	Simstr              sKey;
	HeapItem *			pNext;
};






#endif