1*b3f79822SAndrew Rist /**************************************************************
2cdf0e10cSrcweir *
3*b3f79822SAndrew Rist * Licensed to the Apache Software Foundation (ASF) under one
4*b3f79822SAndrew Rist * or more contributor license agreements. See the NOTICE file
5*b3f79822SAndrew Rist * distributed with this work for additional information
6*b3f79822SAndrew Rist * regarding copyright ownership. The ASF licenses this file
7*b3f79822SAndrew Rist * to you under the Apache License, Version 2.0 (the
8*b3f79822SAndrew Rist * "License"); you may not use this file except in compliance
9*b3f79822SAndrew Rist * with the License. You may obtain a copy of the License at
10*b3f79822SAndrew Rist *
11*b3f79822SAndrew Rist * http://www.apache.org/licenses/LICENSE-2.0
12*b3f79822SAndrew Rist *
13*b3f79822SAndrew Rist * Unless required by applicable law or agreed to in writing,
14*b3f79822SAndrew Rist * software distributed under the License is distributed on an
15*b3f79822SAndrew Rist * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16*b3f79822SAndrew Rist * KIND, either express or implied. See the License for the
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21*b3f79822SAndrew Rist
22*b3f79822SAndrew Rist
23cdf0e10cSrcweir
24cdf0e10cSrcweir // MARKER(update_precomp.py): autogen include statement, do not remove
25cdf0e10cSrcweir #include "precompiled_sc.hxx"
26cdf0e10cSrcweir
27cdf0e10cSrcweir
28cdf0e10cSrcweir
29cdf0e10cSrcweir // INCLUDE ---------------------------------------------------------------
30cdf0e10cSrcweir
31cdf0e10cSrcweir #include <tools/debug.hxx>
32cdf0e10cSrcweir
33cdf0e10cSrcweir #include "rechead.hxx"
34cdf0e10cSrcweir #include "scerrors.hxx"
35cdf0e10cSrcweir
36cdf0e10cSrcweir // STATIC DATA -----------------------------------------------------------
37cdf0e10cSrcweir
38cdf0e10cSrcweir // =======================================================================
39cdf0e10cSrcweir
ScMultipleReadHeader(SvStream & rNewStream)40cdf0e10cSrcweir ScMultipleReadHeader::ScMultipleReadHeader(SvStream& rNewStream) :
41cdf0e10cSrcweir rStream( rNewStream )
42cdf0e10cSrcweir {
43cdf0e10cSrcweir sal_uInt32 nDataSize;
44cdf0e10cSrcweir rStream >> nDataSize;
45cdf0e10cSrcweir sal_uLong nDataPos = rStream.Tell();
46cdf0e10cSrcweir nTotalEnd = nDataPos + nDataSize;
47cdf0e10cSrcweir nEntryEnd = nTotalEnd;
48cdf0e10cSrcweir
49cdf0e10cSrcweir rStream.SeekRel(nDataSize);
50cdf0e10cSrcweir sal_uInt16 nID;
51cdf0e10cSrcweir rStream >> nID;
52cdf0e10cSrcweir if (nID != SCID_SIZES)
53cdf0e10cSrcweir {
54cdf0e10cSrcweir DBG_ERROR("SCID_SIZES nicht gefunden");
55cdf0e10cSrcweir if ( rStream.GetError() == SVSTREAM_OK )
56cdf0e10cSrcweir rStream.SetError( SVSTREAM_FILEFORMAT_ERROR );
57cdf0e10cSrcweir
58cdf0e10cSrcweir // alles auf 0, damit BytesLeft() wenigstens abbricht
59cdf0e10cSrcweir pBuf = NULL; pMemStream = NULL;
60cdf0e10cSrcweir nEntryEnd = nDataPos;
61cdf0e10cSrcweir }
62cdf0e10cSrcweir else
63cdf0e10cSrcweir {
64cdf0e10cSrcweir sal_uInt32 nSizeTableLen;
65cdf0e10cSrcweir rStream >> nSizeTableLen;
66cdf0e10cSrcweir pBuf = new sal_uInt8[nSizeTableLen];
67cdf0e10cSrcweir rStream.Read( pBuf, nSizeTableLen );
68cdf0e10cSrcweir pMemStream = new SvMemoryStream( (char*)pBuf, nSizeTableLen, STREAM_READ );
69cdf0e10cSrcweir }
70cdf0e10cSrcweir
71cdf0e10cSrcweir nEndPos = rStream.Tell();
72cdf0e10cSrcweir rStream.Seek( nDataPos );
73cdf0e10cSrcweir }
74cdf0e10cSrcweir
~ScMultipleReadHeader()75cdf0e10cSrcweir ScMultipleReadHeader::~ScMultipleReadHeader()
76cdf0e10cSrcweir {
77cdf0e10cSrcweir if ( pMemStream && pMemStream->Tell() != pMemStream->GetEndOfData() )
78cdf0e10cSrcweir {
79cdf0e10cSrcweir DBG_ERRORFILE( "Sizes nicht vollstaendig gelesen" );
80cdf0e10cSrcweir if ( rStream.GetError() == SVSTREAM_OK )
81cdf0e10cSrcweir rStream.SetError( SCWARN_IMPORT_INFOLOST );
82cdf0e10cSrcweir }
83cdf0e10cSrcweir delete pMemStream;
84cdf0e10cSrcweir delete[] pBuf;
85cdf0e10cSrcweir
86cdf0e10cSrcweir rStream.Seek(nEndPos);
87cdf0e10cSrcweir }
88cdf0e10cSrcweir
EndEntry()89cdf0e10cSrcweir void ScMultipleReadHeader::EndEntry()
90cdf0e10cSrcweir {
91cdf0e10cSrcweir sal_uLong nPos = rStream.Tell();
92cdf0e10cSrcweir DBG_ASSERT( nPos <= nEntryEnd, "zuviel gelesen" );
93cdf0e10cSrcweir if ( nPos != nEntryEnd )
94cdf0e10cSrcweir {
95cdf0e10cSrcweir if ( rStream.GetError() == SVSTREAM_OK )
96cdf0e10cSrcweir rStream.SetError( SCWARN_IMPORT_INFOLOST );
97cdf0e10cSrcweir rStream.Seek( nEntryEnd ); // Rest ueberspringen
98cdf0e10cSrcweir }
99cdf0e10cSrcweir
100cdf0e10cSrcweir nEntryEnd = nTotalEnd; // den ganzen Rest, wenn kein StartEntry kommt
101cdf0e10cSrcweir }
102cdf0e10cSrcweir
StartEntry()103cdf0e10cSrcweir void ScMultipleReadHeader::StartEntry()
104cdf0e10cSrcweir {
105cdf0e10cSrcweir sal_uLong nPos = rStream.Tell();
106cdf0e10cSrcweir sal_uInt32 nEntrySize;
107cdf0e10cSrcweir (*pMemStream) >> nEntrySize;
108cdf0e10cSrcweir
109cdf0e10cSrcweir nEntryEnd = nPos + nEntrySize;
110cdf0e10cSrcweir DBG_ASSERT( nEntryEnd <= nTotalEnd, "zuviele Eintraege gelesen" );
111cdf0e10cSrcweir }
112cdf0e10cSrcweir
BytesLeft() const113cdf0e10cSrcweir sal_uLong ScMultipleReadHeader::BytesLeft() const
114cdf0e10cSrcweir {
115cdf0e10cSrcweir sal_uLong nReadEnd = rStream.Tell();
116cdf0e10cSrcweir if (nReadEnd <= nEntryEnd)
117cdf0e10cSrcweir return nEntryEnd-nReadEnd;
118cdf0e10cSrcweir
119cdf0e10cSrcweir DBG_ERROR("Fehler bei ScMultipleReadHeader::BytesLeft");
120cdf0e10cSrcweir return 0;
121cdf0e10cSrcweir }
122cdf0e10cSrcweir
123cdf0e10cSrcweir // -----------------------------------------------------------------------
124cdf0e10cSrcweir
ScMultipleWriteHeader(SvStream & rNewStream,sal_uInt32 nDefault)125cdf0e10cSrcweir ScMultipleWriteHeader::ScMultipleWriteHeader(SvStream& rNewStream, sal_uInt32 nDefault) :
126cdf0e10cSrcweir rStream( rNewStream ),
127cdf0e10cSrcweir aMemStream( 4096, 4096 )
128cdf0e10cSrcweir {
129cdf0e10cSrcweir nDataSize = nDefault;
130cdf0e10cSrcweir rStream << nDataSize;
131cdf0e10cSrcweir
132cdf0e10cSrcweir nDataPos = rStream.Tell();
133cdf0e10cSrcweir nEntryStart = nDataPos;
134cdf0e10cSrcweir }
135cdf0e10cSrcweir
~ScMultipleWriteHeader()136cdf0e10cSrcweir ScMultipleWriteHeader::~ScMultipleWriteHeader()
137cdf0e10cSrcweir {
138cdf0e10cSrcweir sal_uLong nDataEnd = rStream.Tell();
139cdf0e10cSrcweir
140cdf0e10cSrcweir rStream << (sal_uInt16) SCID_SIZES;
141cdf0e10cSrcweir rStream << static_cast<sal_uInt32>(aMemStream.Tell());
142cdf0e10cSrcweir rStream.Write( aMemStream.GetData(), aMemStream.Tell() );
143cdf0e10cSrcweir
144cdf0e10cSrcweir if ( nDataEnd - nDataPos != nDataSize ) // Default getroffen?
145cdf0e10cSrcweir {
146cdf0e10cSrcweir nDataSize = nDataEnd - nDataPos;
147cdf0e10cSrcweir sal_uLong nPos = rStream.Tell();
148cdf0e10cSrcweir rStream.Seek(nDataPos-sizeof(sal_uInt32));
149cdf0e10cSrcweir rStream << nDataSize; // Groesse am Anfang eintragen
150cdf0e10cSrcweir rStream.Seek(nPos);
151cdf0e10cSrcweir }
152cdf0e10cSrcweir }
153cdf0e10cSrcweir
EndEntry()154cdf0e10cSrcweir void ScMultipleWriteHeader::EndEntry()
155cdf0e10cSrcweir {
156cdf0e10cSrcweir sal_uLong nPos = rStream.Tell();
157cdf0e10cSrcweir aMemStream << static_cast<sal_uInt32>(nPos - nEntryStart);
158cdf0e10cSrcweir }
159cdf0e10cSrcweir
StartEntry()160cdf0e10cSrcweir void ScMultipleWriteHeader::StartEntry()
161cdf0e10cSrcweir {
162cdf0e10cSrcweir sal_uLong nPos = rStream.Tell();
163cdf0e10cSrcweir nEntryStart = nPos;
164cdf0e10cSrcweir }
165cdf0e10cSrcweir
166cdf0e10cSrcweir
167cdf0e10cSrcweir
168cdf0e10cSrcweir
169cdf0e10cSrcweir
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