LibreOffice Module vcl (master)  1
inetimg.cxx
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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 <osl/thread.h>
21 #include <sot/formats.hxx>
22 #include <tools/stream.hxx>
23 
24 #include <vcl/inetimg.hxx>
25 
26 static const sal_Unicode TOKEN_SEPARATOR = '\001';
27 
28 void INetImage::Write( SvStream& rOStm, SotClipboardFormatId nFormat ) const
29 {
30  switch( nFormat )
31  {
32  case SotClipboardFormatId::INET_IMAGE:
33  {
34  OUString sString(
35  aImageURL + OUStringLiteral1(TOKEN_SEPARATOR) + aTargetURL
36  + OUStringLiteral1(TOKEN_SEPARATOR) + aTargetFrame
37  + OUStringLiteral1(TOKEN_SEPARATOR) /* + aAlternateText */
38  + OUStringLiteral1(TOKEN_SEPARATOR)
39  + OUString::number(aSizePixel.Width())
40  + OUStringLiteral1(TOKEN_SEPARATOR)
41  + OUString::number(aSizePixel.Height()));
42 
43  OString sOut(OUStringToOString(sString,
44  RTL_TEXTENCODING_UTF8));
45 
46  rOStm.WriteBytes(sOut.getStr(), sOut.getLength());
47  static const sal_Char aEndChar[2] = { 0 };
48  rOStm.WriteBytes(aEndChar, sizeof(aEndChar));
49  }
50  break;
51 
52  case SotClipboardFormatId::NETSCAPE_IMAGE:
53  break;
54  default: break;
55  }
56 }
57 
59 {
60  bool bRet = false;
61  switch( nFormat )
62  {
63  case SotClipboardFormatId::INET_IMAGE:
64  {
65  OUString sINetImg = read_zeroTerminated_uInt8s_ToOUString(rIStm, RTL_TEXTENCODING_UTF8);
66  sal_Int32 nStart = 0;
67  aImageURL = sINetImg.getToken( 0, TOKEN_SEPARATOR, nStart );
68  aTargetURL = sINetImg.getToken( 0, TOKEN_SEPARATOR, nStart );
69  aTargetFrame = sINetImg.getToken( 0, TOKEN_SEPARATOR, nStart );
70  /*aAlternateText =*/ sINetImg.getToken( 0, TOKEN_SEPARATOR, nStart );
71  aSizePixel.setWidth( sINetImg.getToken( 0, TOKEN_SEPARATOR,
72  nStart ).toInt32() );
73  aSizePixel.setHeight( sINetImg.getToken( 0, TOKEN_SEPARATOR,
74  nStart ).toInt32() );
75  bRet = !sINetImg.isEmpty();
76  }
77  break;
78 
79  case SotClipboardFormatId::NETSCAPE_IMAGE:
80  {
81 /*
82  --> structure size MUST - alignment of 4!
83  int iSize; // size of all data, including variable length strings
84  sal_Bool bIsMap; // For server side maps
85  sal_Int32 iWidth; // Fixed size data correspond to fields in LO_ImageDataStruct
86  sal_Int32 iHeight; // and EDT_ImageData
87  sal_Int32 iHSpace;
88  sal_Int32 iVSpace;
89  sal_Int32 iBorder;
90  int iLowResOffset; // Offsets into string_data. If 0, string is NULL (not used)
91  int iAltOffset; // (alternate text?)
92  int iAnchorOffset; // HREF in image
93  int iExtraHTML_Offset; // Extra HTML (stored in CImageElement)
94  sal_Char pImageURL[1]; // Append all variable-length strings starting here
95 */
96  rtl_TextEncoding eSysCSet = osl_getThreadTextEncoding();
97  sal_Int32 nVal, nAnchorOffset, nAltOffset;
98  sal_uInt64 nFilePos;
99 
100  nFilePos = rIStm.Tell();
101  // skip over iSize (int), bIsMao ( sal_Bool ) alignment of 4 !!!!
102  rIStm.SeekRel( 8 );
103  rIStm.ReadInt32( nVal ); aSizePixel.setWidth( nVal );
104  rIStm.ReadInt32( nVal ); aSizePixel.setHeight( nVal );
105  // skip over iHSpace, iVSpace, iBorder, iLowResOffset
106  rIStm.SeekRel( 3 * sizeof( sal_Int32 ) + sizeof( int ) );
107  rIStm.ReadInt32( nAltOffset );
108  rIStm.ReadInt32( nAnchorOffset );
109  // skip over iExtraHTML_Offset
110  rIStm.SeekRel( sizeof( int ) );
111 
113  if( nAltOffset )
114  {
115  rIStm.Seek( nFilePos + nAltOffset );
116  /*aAlternateText =*/ read_zeroTerminated_uInt8s_ToOUString(rIStm, eSysCSet);
117  }
118 
119  if( nAnchorOffset )
120  {
121  rIStm.Seek( nFilePos + nAnchorOffset );
123  }
124  else if( !aTargetURL.isEmpty() )
125  aTargetURL.clear();
126 
127  bRet = ERRCODE_NONE == rIStm.GetError();
128  }
129  break;
130  default: break;
131  }
132  return bRet;
133 }
134 
135 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
long Width() const
long Height() const
OUString aImageURL
Definition: inetimg.hxx:29
sal_uInt64 Seek(sal_uInt64 nPos)
static const sal_Unicode TOKEN_SEPARATOR
Definition: inetimg.cxx:26
sal_uInt64 SeekRel(sal_Int64 nPos)
sal_uInt16 sal_Unicode
OUString aTargetFrame
Definition: inetimg.hxx:31
OUString aTargetURL
Definition: inetimg.hxx:30
ErrCode GetError() const
char sal_Char
SotClipboardFormatId
OUString read_zeroTerminated_uInt8s_ToOUString(SvStream &rStream, rtl_TextEncoding eEnc)
std::size_t WriteBytes(const void *pData, std::size_t nSize)
SvStream & ReadInt32(sal_Int32 &rInt32)
OString OUStringToOString(const OUString &str, ConnectionSettings const *settings)
#define ERRCODE_NONE
Definition: errcode.hxx:198
sal_uInt64 Tell() const
bool Read(SvStream &rIStm, SotClipboardFormatId nFormat)
Definition: inetimg.cxx:58
Size aSizePixel
Definition: inetimg.hxx:32
void setWidth(long nWidth)
void Write(SvStream &rOStm, SotClipboardFormatId nFormat) const
Definition: inetimg.cxx:28
void setHeight(long nHeight)