1*5b190011SAndrew Rist /**************************************************************
2cdf0e10cSrcweir *
3*5b190011SAndrew Rist * Licensed to the Apache Software Foundation (ASF) under one
4*5b190011SAndrew Rist * or more contributor license agreements. See the NOTICE file
5*5b190011SAndrew Rist * distributed with this work for additional information
6*5b190011SAndrew Rist * regarding copyright ownership. The ASF licenses this file
7*5b190011SAndrew Rist * to you under the Apache License, Version 2.0 (the
8*5b190011SAndrew Rist * "License"); you may not use this file except in compliance
9*5b190011SAndrew Rist * with the License. You may obtain a copy of the License at
10*5b190011SAndrew Rist *
11*5b190011SAndrew Rist * http://www.apache.org/licenses/LICENSE-2.0
12*5b190011SAndrew Rist *
13*5b190011SAndrew Rist * Unless required by applicable law or agreed to in writing,
14*5b190011SAndrew Rist * software distributed under the License is distributed on an
15*5b190011SAndrew Rist * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16*5b190011SAndrew Rist * KIND, either express or implied. See the License for the
17*5b190011SAndrew Rist * specific language governing permissions and limitations
18*5b190011SAndrew Rist * under the License.
19*5b190011SAndrew Rist *
20*5b190011SAndrew Rist *************************************************************/
21*5b190011SAndrew Rist
22*5b190011SAndrew Rist
23cdf0e10cSrcweir
24cdf0e10cSrcweir // MARKER(update_precomp.py): autogen include statement, do not remove
25cdf0e10cSrcweir #include "precompiled_sd.hxx"
26cdf0e10cSrcweir
27cdf0e10cSrcweir
28cdf0e10cSrcweir #include <tools/debug.hxx>
29cdf0e10cSrcweir
30cdf0e10cSrcweir #include "sdiocmpt.hxx"
31cdf0e10cSrcweir
32cdf0e10cSrcweir //////////////////////////////////////////////////////////////////////////////
33cdf0e10cSrcweir
old_SdrDownCompat(SvStream & rNewStream,sal_uInt16 nNewMode)34cdf0e10cSrcweir old_SdrDownCompat::old_SdrDownCompat(SvStream& rNewStream, sal_uInt16 nNewMode)
35cdf0e10cSrcweir : rStream(rNewStream),
36cdf0e10cSrcweir nSubRecSiz(0),
37cdf0e10cSrcweir nSubRecPos(0),
38cdf0e10cSrcweir nMode(nNewMode),
39cdf0e10cSrcweir bOpen(sal_False)
40cdf0e10cSrcweir {
41cdf0e10cSrcweir OpenSubRecord();
42cdf0e10cSrcweir }
43cdf0e10cSrcweir
~old_SdrDownCompat()44cdf0e10cSrcweir old_SdrDownCompat::~old_SdrDownCompat()
45cdf0e10cSrcweir {
46cdf0e10cSrcweir if(bOpen)
47cdf0e10cSrcweir CloseSubRecord();
48cdf0e10cSrcweir }
49cdf0e10cSrcweir
Read()50cdf0e10cSrcweir void old_SdrDownCompat::Read()
51cdf0e10cSrcweir {
52cdf0e10cSrcweir rStream >> nSubRecSiz;
53cdf0e10cSrcweir }
54cdf0e10cSrcweir
Write()55cdf0e10cSrcweir void old_SdrDownCompat::Write()
56cdf0e10cSrcweir {
57cdf0e10cSrcweir rStream << nSubRecSiz;
58cdf0e10cSrcweir }
59cdf0e10cSrcweir
OpenSubRecord()60cdf0e10cSrcweir void old_SdrDownCompat::OpenSubRecord()
61cdf0e10cSrcweir {
62cdf0e10cSrcweir if(rStream.GetError())
63cdf0e10cSrcweir return;
64cdf0e10cSrcweir
65cdf0e10cSrcweir nSubRecPos = rStream.Tell();
66cdf0e10cSrcweir
67cdf0e10cSrcweir if(nMode == STREAM_READ)
68cdf0e10cSrcweir {
69cdf0e10cSrcweir Read();
70cdf0e10cSrcweir }
71cdf0e10cSrcweir else if(nMode == STREAM_WRITE)
72cdf0e10cSrcweir {
73cdf0e10cSrcweir Write();
74cdf0e10cSrcweir }
75cdf0e10cSrcweir
76cdf0e10cSrcweir bOpen = sal_True;
77cdf0e10cSrcweir }
78cdf0e10cSrcweir
CloseSubRecord()79cdf0e10cSrcweir void old_SdrDownCompat::CloseSubRecord()
80cdf0e10cSrcweir {
81cdf0e10cSrcweir if(rStream.GetError())
82cdf0e10cSrcweir return;
83cdf0e10cSrcweir
84cdf0e10cSrcweir sal_uInt32 nAktPos(rStream.Tell());
85cdf0e10cSrcweir
86cdf0e10cSrcweir if(nMode == STREAM_READ)
87cdf0e10cSrcweir {
88cdf0e10cSrcweir sal_uInt32 nReadAnz(nAktPos - nSubRecPos);
89cdf0e10cSrcweir if(nReadAnz != nSubRecSiz)
90cdf0e10cSrcweir {
91cdf0e10cSrcweir rStream.Seek(nSubRecPos + nSubRecSiz);
92cdf0e10cSrcweir }
93cdf0e10cSrcweir }
94cdf0e10cSrcweir else if(nMode == STREAM_WRITE)
95cdf0e10cSrcweir {
96cdf0e10cSrcweir nSubRecSiz = nAktPos - nSubRecPos;
97cdf0e10cSrcweir rStream.Seek(nSubRecPos);
98cdf0e10cSrcweir Write();
99cdf0e10cSrcweir rStream.Seek(nAktPos);
100cdf0e10cSrcweir }
101cdf0e10cSrcweir
102cdf0e10cSrcweir bOpen = sal_False;
103cdf0e10cSrcweir }
104cdf0e10cSrcweir
105cdf0e10cSrcweir /*************************************************************************
106cdf0e10cSrcweir |*
107cdf0e10cSrcweir |* Konstruktor, schreibt bzw. liest Versionsnummer
108cdf0e10cSrcweir |*
109cdf0e10cSrcweir \************************************************************************/
110cdf0e10cSrcweir
SdIOCompat(SvStream & rNewStream,sal_uInt16 nNewMode,sal_uInt16 nVer)111cdf0e10cSrcweir SdIOCompat::SdIOCompat(SvStream& rNewStream, sal_uInt16 nNewMode, sal_uInt16 nVer)
112cdf0e10cSrcweir : old_SdrDownCompat(rNewStream, nNewMode), nVersion(nVer)
113cdf0e10cSrcweir {
114cdf0e10cSrcweir if (nNewMode == STREAM_WRITE)
115cdf0e10cSrcweir {
116cdf0e10cSrcweir DBG_ASSERT(nVer != SDIOCOMPAT_VERSIONDONTKNOW,
117cdf0e10cSrcweir "kann unbekannte Version nicht schreiben");
118cdf0e10cSrcweir rNewStream << nVersion;
119cdf0e10cSrcweir }
120cdf0e10cSrcweir else if (nNewMode == STREAM_READ)
121cdf0e10cSrcweir {
122cdf0e10cSrcweir DBG_ASSERT(nVer == SDIOCOMPAT_VERSIONDONTKNOW,
123cdf0e10cSrcweir "Lesen mit Angabe der Version ist Quatsch!");
124cdf0e10cSrcweir rNewStream >> nVersion;
125cdf0e10cSrcweir }
126cdf0e10cSrcweir }
127cdf0e10cSrcweir
~SdIOCompat()128cdf0e10cSrcweir SdIOCompat::~SdIOCompat()
129cdf0e10cSrcweir {
130cdf0e10cSrcweir }
131cdf0e10cSrcweir
132cdf0e10cSrcweir // eof
133