rechead.hxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   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 .
 */
 
#pragma once
 
#include <tools/stream.hxx>
#include <memory>
 
//      ID's for files:
 
#define SCID_SIZES          0x4200
 
 
#define SC_31_EXPORT_VER    0x0012          // version for 3.1-export
// since 4.0
#define SC_FONTCHARSET      0x0101          // Font-CharSets have to be right
 
// since 5.0
#define SC_MATRIX_DOUBLEREF 0x0202          // DoubleRef implicit intersection
// since 5.2
#define SC_CURRENT_VERSION  0x0205
 
// all above SC_31_EXPORT_VER has to be queried during saving,
// because 3.1-export writes this version number.
 
// btw: 10 following 09 is not a counting error but an intentional gap,
// because it was not clear, how long the RelRefs development would take. :)
 
        //  Header with size specification for multiple objects
 
class ScMultipleReadHeader
{
private:
    SvStream&           rStream;
    std::unique_ptr<sal_uInt8[]>
                        pBuf;
    std::unique_ptr<SvMemoryStream>
                        pMemStream;
    sal_uInt64          nEndPos;
    sal_uInt64          nEntryEnd;
    sal_uInt64          nTotalEnd;
 
public:
    ScMultipleReadHeader(SvStream& rNewStream);
    ~ScMultipleReadHeader();
 
    void    StartEntry();
    void    EndEntry();
    sal_uInt64  BytesLeft() const;
};
 
class ScMultipleWriteHeader
{
private:
    SvStream&       rStream;
    SvMemoryStream  aMemStream;
    sal_uInt64      nDataPos;
    sal_uInt32      nDataSize;
    sal_uInt64      nEntryStart;
 
public:
    ScMultipleWriteHeader(SvStream& rNewStream);
    ~ScMultipleWriteHeader();
 
    void    StartEntry();
    void    EndEntry();
};
 
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