/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/


#ifndef _SD_SDIOCMPT_HXX
#define _SD_SDIOCMPT_HXX

#include <tools/stream.hxx>

//////////////////////////////////////////////////////////////////////////////
class SvStream;

class old_SdrDownCompat 
{
protected:
	SvStream&					rStream;
	sal_uInt32						nSubRecSiz;
	sal_uInt32						nSubRecPos;
	sal_uInt16						nMode;
	bool						bOpen;

protected:
	void Read();
	void Write();

public:
	old_SdrDownCompat(SvStream& rNewStream, sal_uInt16 nNewMode);
	~old_SdrDownCompat();
	void  OpenSubRecord();
	void  CloseSubRecord();
};
//////////////////////////////////////////////////////////////////////////////
#include "sddllapi.h"

#define SDIOCOMPAT_VERSIONDONTKNOW (sal_uInt16)0xffff

class SD_DLLPUBLIC SdIOCompat : public old_SdrDownCompat
{
private:
	sal_uInt16 nVersion;

public:
				// nNewMode: STREAM_READ oder STREAM_WRITE
				// nVer:	 nur beim Schreiben angeben
			SdIOCompat(SvStream& rNewStream, sal_uInt16 nNewMode,
					   sal_uInt16 nVer = SDIOCOMPAT_VERSIONDONTKNOW);
			~SdIOCompat();
	sal_uInt16	GetVersion() const { return nVersion; }
};

#endif		// _SD_SDIOCMPT_HXX