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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #include <tools/debug.hxx>
21 :
22 : #include "numhead.hxx"
23 :
24 : // ID's for files:
25 : #define SV_NUMID_SIZES 0x4200
26 :
27 : //#pragma SEG_FUNCDEF(numhead_06)
28 :
29 : //! Synchronous with Skip()
30 0 : ImpSvNumMultipleReadHeader::ImpSvNumMultipleReadHeader(SvStream& rNewStream) :
31 0 : rStream( rNewStream )
32 : {
33 : sal_uInt32 nDataSize;
34 0 : rStream.ReadUInt32( nDataSize );
35 0 : sal_uLong nDataPos = rStream.Tell();
36 0 : nEntryEnd = nDataPos;
37 :
38 0 : rStream.SeekRel(nDataSize);
39 : sal_uInt16 nID;
40 0 : rStream.ReadUInt16( nID );
41 0 : if (nID != SV_NUMID_SIZES)
42 : {
43 : OSL_FAIL("SV_NUMID_SIZES not found");
44 : }
45 : sal_uInt32 nSizeTableLen;
46 0 : rStream.ReadUInt32( nSizeTableLen );
47 0 : pBuf = new char[nSizeTableLen];
48 0 : rStream.Read( pBuf, nSizeTableLen );
49 0 : pMemStream = new SvMemoryStream( pBuf, nSizeTableLen, STREAM_READ );
50 :
51 0 : nEndPos = rStream.Tell();
52 0 : rStream.Seek( nDataPos );
53 0 : }
54 :
55 : //#pragma SEG_FUNCDEF(numhead_07)
56 :
57 0 : ImpSvNumMultipleReadHeader::~ImpSvNumMultipleReadHeader()
58 : {
59 : DBG_ASSERT( pMemStream->Tell() == pMemStream->GetEndOfData(),
60 : "Sizes not completely read" );
61 0 : delete pMemStream;
62 0 : delete [] pBuf;
63 :
64 0 : rStream.Seek(nEndPos);
65 0 : }
66 :
67 : //#pragma SEG_FUNCDEF(numhead_08)
68 :
69 0 : void ImpSvNumMultipleReadHeader::EndEntry()
70 : {
71 0 : sal_uLong nPos = rStream.Tell();
72 : DBG_ASSERT( nPos <= nEntryEnd, "Read too much" );
73 0 : if ( nPos != nEntryEnd )
74 0 : rStream.Seek( nEntryEnd ); // Skip the rest
75 0 : }
76 :
77 : //#pragma SEG_FUNCDEF(numhead_0d)
78 :
79 0 : void ImpSvNumMultipleReadHeader::StartEntry()
80 : {
81 0 : sal_uLong nPos = rStream.Tell();
82 : sal_uInt32 nEntrySize;
83 0 : (*pMemStream).ReadUInt32( nEntrySize );
84 :
85 0 : nEntryEnd = nPos + nEntrySize;
86 0 : }
87 :
88 : //#pragma SEG_FUNCDEF(numhead_09)
89 :
90 0 : sal_uLong ImpSvNumMultipleReadHeader::BytesLeft() const
91 : {
92 0 : sal_uLong nReadEnd = rStream.Tell();
93 0 : if (nReadEnd <= nEntryEnd)
94 0 : return nEntryEnd-nReadEnd;
95 :
96 : OSL_FAIL("Error in ImpSvNumMultipleReadHeader::BytesLeft");
97 0 : return 0;
98 : }
99 :
100 :
101 : //#pragma SEG_FUNCDEF(numhead_0a)
102 :
103 0 : ImpSvNumMultipleWriteHeader::ImpSvNumMultipleWriteHeader(SvStream& rNewStream,
104 : sal_uLong nDefault) :
105 : rStream( rNewStream ),
106 0 : aMemStream( 4096, 4096 )
107 : {
108 0 : nDataSize = nDefault;
109 0 : rStream.WriteUInt32( nDataSize );
110 :
111 0 : nDataPos = rStream.Tell();
112 0 : nEntryStart = nDataPos;
113 0 : }
114 :
115 : //#pragma SEG_FUNCDEF(numhead_0b)
116 :
117 0 : ImpSvNumMultipleWriteHeader::~ImpSvNumMultipleWriteHeader()
118 : {
119 0 : sal_uLong nDataEnd = rStream.Tell();
120 :
121 0 : rStream.WriteUInt16( SV_NUMID_SIZES );
122 0 : rStream.WriteUInt32( aMemStream.Tell() );
123 0 : rStream.Write( aMemStream.GetData(), aMemStream.Tell() );
124 :
125 0 : if ( nDataEnd - nDataPos != nDataSize ) // Hit Default?
126 : {
127 0 : nDataSize = nDataEnd - nDataPos;
128 0 : sal_uLong nPos = rStream.Tell();
129 0 : rStream.Seek(nDataPos-sizeof(sal_uInt32));
130 0 : rStream.WriteUInt32( nDataSize ); // Add size at the start
131 0 : rStream.Seek(nPos);
132 : }
133 0 : }
134 :
135 : //#pragma SEG_FUNCDEF(numhead_0c)
136 :
137 0 : void ImpSvNumMultipleWriteHeader::EndEntry()
138 : {
139 0 : sal_uLong nPos = rStream.Tell();
140 0 : aMemStream.WriteUInt32( nPos - nEntryStart );
141 0 : }
142 :
143 : //#pragma SEG_FUNCDEF(numhead_0e)
144 :
145 0 : void ImpSvNumMultipleWriteHeader::StartEntry()
146 : {
147 0 : sal_uLong nPos = rStream.Tell();
148 0 : nEntryStart = nPos;
149 0 : }
150 :
151 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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