1 /**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 *************************************************************/
21
22
23
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_svtools.hxx"
26 #include <tools/debug.hxx>
27 #include <sot/formats.hxx>
28 #include <tools/stream.hxx>
29
30 #include <svtools/inetimg.hxx>
31
32 #define TOKEN_SEPARATOR '\001'
33
Write(SvStream & rOStm,sal_uLong nFormat) const34 sal_Bool INetImage::Write( SvStream& rOStm, sal_uLong nFormat ) const
35 {
36 sal_Bool bRet = sal_False;
37 switch( nFormat )
38 {
39 case SOT_FORMATSTR_ID_INET_IMAGE:
40 {
41 String sString;
42 (sString += aImageURL ) += TOKEN_SEPARATOR;
43 (sString += aTargetURL ) += TOKEN_SEPARATOR;
44 (sString += aTargetFrame ) += TOKEN_SEPARATOR;
45 (sString += aAlternateText ) += TOKEN_SEPARATOR;
46 sString += String::CreateFromInt32( aSizePixel.Width() );
47 sString += TOKEN_SEPARATOR;
48 sString += String::CreateFromInt32( aSizePixel.Height() );
49 ByteString sOut( sString, RTL_TEXTENCODING_UTF8 );
50
51 rOStm.Write( sOut.GetBuffer(), sOut.Len() );
52 static const sal_Char aEndChar[2] = { 0 };
53 rOStm.Write( aEndChar, sizeof( aEndChar ));
54 bRet = 0 == rOStm.GetError();
55 }
56 break;
57
58 case SOT_FORMATSTR_ID_NETSCAPE_IMAGE:
59 break;
60 }
61 return bRet;
62 }
63
Read(SvStream & rIStm,sal_uLong nFormat)64 sal_Bool INetImage::Read( SvStream& rIStm, sal_uLong nFormat )
65 {
66 sal_Bool bRet = sal_False;
67 switch( nFormat )
68 {
69 case SOT_FORMATSTR_ID_INET_IMAGE:
70 {
71 String sINetImg;
72 rIStm.ReadCString( sINetImg, RTL_TEXTENCODING_UTF8 );
73 xub_StrLen nStart = 0;
74 aImageURL = sINetImg.GetToken( 0, TOKEN_SEPARATOR, nStart );
75 aTargetURL = sINetImg.GetToken( 0, TOKEN_SEPARATOR, nStart );
76 aTargetFrame = sINetImg.GetToken( 0, TOKEN_SEPARATOR, nStart );
77 aAlternateText = sINetImg.GetToken( 0, TOKEN_SEPARATOR, nStart );
78 aSizePixel.Width() = sINetImg.GetToken( 0, TOKEN_SEPARATOR,
79 nStart ).ToInt32();
80 aSizePixel.Height() = sINetImg.GetToken( 0, TOKEN_SEPARATOR,
81 nStart ).ToInt32();
82 bRet = 0 != sINetImg.Len();
83 }
84 break;
85
86 case SOT_FORMATSTR_ID_NETSCAPE_IMAGE:
87 {
88 /*
89 --> structure size MUST - alignment of 4!
90 int iSize; // size of all data, including variable length strings
91 sal_Bool bIsMap; // For server side maps
92 sal_Int32 iWidth; // Fixed size data correspond to fields in LO_ImageDataStruct
93 sal_Int32 iHeight; // and EDT_ImageData
94 sal_Int32 iHSpace;
95 sal_Int32 iVSpace;
96 sal_Int32 iBorder;
97 int iLowResOffset; // Offsets into string_data. If 0, string is NULL (not used)
98 int iAltOffset; // (alternate text?)
99 int iAnchorOffset; // HREF in image
100 int iExtraHTML_Offset; // Extra HTML (stored in CImageElement)
101 sal_Char pImageURL[1]; // Append all variable-length strings starting here
102 */
103 rtl_TextEncoding eSysCSet = gsl_getSystemTextEncoding();
104 sal_Int32 nVal, nAnchorOffset, nAltOffset, nFilePos;
105 ByteString sData;
106
107 nFilePos = rIStm.Tell();
108 // skip over iSize (int), bIsMao ( sal_Bool ) alignment of 4 !!!!
109 rIStm.SeekRel( 8 );
110 rIStm >> nVal; aSizePixel.Width() = nVal;
111 rIStm >> nVal; aSizePixel.Height() = nVal;
112 // skip over iHSpace, iVSpace, iBorder, iLowResOffset
113 rIStm.SeekRel( 3 * sizeof( sal_Int32 ) + sizeof( int ) );
114 rIStm >> nAltOffset;
115 rIStm >> nAnchorOffset;
116 // skip over iExtraHTML_Offset
117 rIStm.SeekRel( sizeof( int ) );
118
119 rIStm.ReadCString( aImageURL, eSysCSet );
120 if( nAltOffset )
121 {
122 rIStm.Seek( nFilePos + nAltOffset );
123 rIStm.ReadCString( aAlternateText, eSysCSet );
124 }
125 else if( aAlternateText.Len() )
126 aAlternateText.Erase();
127
128 if( nAnchorOffset )
129 {
130 rIStm.Seek( nFilePos + nAnchorOffset );
131 rIStm.ReadCString( aTargetURL, eSysCSet );
132 }
133 else if( aTargetURL.Len() )
134 aTargetURL.Erase();
135
136 bRet = 0 == rIStm.GetError();
137 }
138 break;
139 }
140 return bRet;
141 }
142
143