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_sdext.hxx"
26
27 #include "imagecontainer.hxx"
28 #include "genericelements.hxx"
29 #include "xmlemitter.hxx"
30
31 #include <rtl/ustrbuf.hxx>
32 #include <osl/file.h>
33 #include <rtl/crc.h>
34
35 #include <com/sun/star/graphic/XGraphicProvider.hpp>
36 #include <com/sun/star/beans/PropertyValue.hpp>
37
38 #include <cppuhelper/implbase1.hxx>
39 #include <comphelper/stl_types.hxx>
40
41 #include <boost/bind.hpp>
42
43 using namespace com::sun::star;
44
45 namespace pdfi
46 {
47
48 namespace
49 {
50
51 static const sal_Char aBase64EncodeTable[] =
52 { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
53 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
54 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
55 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
56 '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/' };
57
encodeBase64(const sal_Int8 * i_pBuffer,const sal_uInt32 i_nBufferLength)58 rtl::OUString encodeBase64( const sal_Int8* i_pBuffer, const sal_uInt32 i_nBufferLength )
59 {
60 rtl::OUStringBuffer aBuf( (i_nBufferLength+1) * 4 / 3 );
61 const sal_Int32 nRemain(i_nBufferLength%3);
62 const sal_Int32 nFullTripleLength( i_nBufferLength - (i_nBufferLength%3));
63 sal_Int32 nBufPos( 0 );
64 for( sal_Int32 i = 0; i < nFullTripleLength; i += 3, nBufPos += 4 )
65 {
66 const sal_Int32 nBinary = (((sal_uInt8)i_pBuffer[i + 0]) << 16) +
67 (((sal_uInt8)i_pBuffer[i + 1]) << 8) +
68 ((sal_uInt8)i_pBuffer[i + 2]);
69
70 aBuf.appendAscii("====");
71
72 sal_uInt8 nIndex (static_cast<sal_uInt8>((nBinary & 0xFC0000) >> 18));
73 aBuf.setCharAt(nBufPos, aBase64EncodeTable [nIndex]);
74
75 nIndex = static_cast<sal_uInt8>((nBinary & 0x3F000) >> 12);
76 aBuf.setCharAt(nBufPos+1, aBase64EncodeTable [nIndex]);
77
78 nIndex = static_cast<sal_uInt8>((nBinary & 0xFC0) >> 6);
79 aBuf.setCharAt(nBufPos+2, aBase64EncodeTable [nIndex]);
80
81 nIndex = static_cast<sal_uInt8>((nBinary & 0x3F));
82 aBuf.setCharAt(nBufPos+3, aBase64EncodeTable [nIndex]);
83 }
84 if( nRemain > 0 )
85 {
86 aBuf.appendAscii("====");
87 sal_Int32 nBinary( 0 );
88 const sal_Int32 nStart(i_nBufferLength-nRemain);
89 switch(nRemain)
90 {
91 case 1: nBinary = ((sal_uInt8)i_pBuffer[nStart + 0]) << 16;
92 break;
93 case 2: nBinary = (((sal_uInt8)i_pBuffer[nStart + 0]) << 16) +
94 (((sal_uInt8)i_pBuffer[nStart + 1]) << 8);
95 break;
96 }
97 sal_uInt8 nIndex (static_cast<sal_uInt8>((nBinary & 0xFC0000) >> 18));
98 aBuf.setCharAt(nBufPos, aBase64EncodeTable [nIndex]);
99
100 nIndex = static_cast<sal_uInt8>((nBinary & 0x3F000) >> 12);
101 aBuf.setCharAt(nBufPos+1, aBase64EncodeTable [nIndex]);
102
103 if( nRemain == 2 )
104 {
105 nIndex = static_cast<sal_uInt8>((nBinary & 0xFC0) >> 6);
106 aBuf.setCharAt(nBufPos+2, aBase64EncodeTable [nIndex]);
107 }
108 }
109
110 return aBuf.makeStringAndClear();
111 }
112
113 } // namespace
114
ImageContainer()115 ImageContainer::ImageContainer() :
116 m_aImages()
117 {}
118
addImage(const uno::Sequence<beans::PropertyValue> & xBitmap)119 ImageId ImageContainer::addImage( const uno::Sequence<beans::PropertyValue>& xBitmap )
120 {
121 m_aImages.push_back( xBitmap );
122 return m_aImages.size()-1;
123 }
124
writeBase64EncodedStream(ImageId nId,EmitContext & rContext)125 void ImageContainer::writeBase64EncodedStream( ImageId nId, EmitContext& rContext )
126 {
127 OSL_ASSERT( nId >= 0 && nId < ImageId( m_aImages.size()) );
128
129 const uno::Sequence<beans::PropertyValue>& rEntry( m_aImages[nId] );
130
131 // find "InputSequence" property
132 const beans::PropertyValue* pAry(rEntry.getConstArray());
133 const sal_Int32 nLen(rEntry.getLength());
134 const beans::PropertyValue* pValue(
135 std::find_if(pAry,pAry+nLen,
136 boost::bind(comphelper::TPropertyValueEqualFunctor(),
137 _1,
138 rtl::OUString::createFromAscii("InputSequence"))));
139 OSL_ENSURE( pValue != pAry+nLen,
140 "InputSequence not found" );
141
142 uno::Sequence<sal_Int8> aData;
143 if( !(pValue->Value >>= aData) )
144 OSL_ENSURE(false,"Wrong data type");
145
146 rContext.rEmitter.write( encodeBase64( aData.getConstArray(), aData.getLength() ));
147 }
148
149 }
150