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-rw-r--r--sdext/source/pdfimport/tree/imagecontainer.cxx146
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diff --git a/sdext/source/pdfimport/tree/imagecontainer.cxx b/sdext/source/pdfimport/tree/imagecontainer.cxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include <imagecontainer.hxx>
+#include <genericelements.hxx>
+#include <xmlemitter.hxx>
+
+#include <rtl/ustrbuf.hxx>
+#include <sal/log.hxx>
+#include <o3tl/safeint.hxx>
+#include <osl/diagnose.h>
+
+#include <com/sun/star/beans/PropertyValue.hpp>
+
+using namespace com::sun::star;
+
+namespace pdfi
+{
+
+namespace
+{
+
+const char aBase64EncodeTable[] =
+ { 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
+ 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
+ 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
+ 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
+ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/' };
+
+OUString encodeBase64( const sal_Int8* i_pBuffer, const sal_Int32 i_nBufferLength )
+{
+ OUStringBuffer aBuf( (i_nBufferLength+1) * 4 / 3 );
+ const sal_Int32 nRemain(i_nBufferLength%3);
+ const sal_Int32 nFullTripleLength( i_nBufferLength - (i_nBufferLength%3));
+ sal_Int32 nBufPos( 0 );
+ for( sal_Int32 i = 0; i < nFullTripleLength; i += 3, nBufPos += 4 )
+ {
+ const sal_Int32 nBinary = (static_cast<sal_uInt8>(i_pBuffer[i + 0]) << 16) +
+ (static_cast<sal_uInt8>(i_pBuffer[i + 1]) << 8) +
+ static_cast<sal_uInt8>(i_pBuffer[i + 2]);
+
+ aBuf.append("====");
+
+ sal_uInt8 nIndex (static_cast<sal_uInt8>((nBinary & 0xFC0000) >> 18));
+ aBuf[nBufPos] = aBase64EncodeTable [nIndex];
+
+ nIndex = static_cast<sal_uInt8>((nBinary & 0x3F000) >> 12);
+ aBuf[nBufPos+1] = aBase64EncodeTable [nIndex];
+
+ nIndex = static_cast<sal_uInt8>((nBinary & 0xFC0) >> 6);
+ aBuf[nBufPos+2] = aBase64EncodeTable [nIndex];
+
+ nIndex = static_cast<sal_uInt8>((nBinary & 0x3F));
+ aBuf[nBufPos+3] = aBase64EncodeTable [nIndex];
+ }
+ if( nRemain > 0 )
+ {
+ aBuf.append("====");
+ sal_Int32 nBinary( 0 );
+ const sal_Int32 nStart(i_nBufferLength-nRemain);
+ switch(nRemain)
+ {
+ case 1: nBinary = static_cast<sal_uInt8>(i_pBuffer[nStart + 0]) << 16;
+ break;
+ case 2: nBinary = (static_cast<sal_uInt8>(i_pBuffer[nStart + 0]) << 16) +
+ (static_cast<sal_uInt8>(i_pBuffer[nStart + 1]) << 8);
+ break;
+ }
+ sal_uInt8 nIndex (static_cast<sal_uInt8>((nBinary & 0xFC0000) >> 18));
+ aBuf[nBufPos] = aBase64EncodeTable [nIndex];
+
+ nIndex = static_cast<sal_uInt8>((nBinary & 0x3F000) >> 12);
+ aBuf[nBufPos+1] = aBase64EncodeTable [nIndex];
+
+ if( nRemain == 2 )
+ {
+ nIndex = static_cast<sal_uInt8>((nBinary & 0xFC0) >> 6);
+ aBuf[nBufPos+2] = aBase64EncodeTable [nIndex];
+ }
+ }
+
+ return aBuf.makeStringAndClear();
+}
+
+} // namespace
+
+ImageContainer::ImageContainer()
+{}
+
+ImageId ImageContainer::addImage( const uno::Sequence<beans::PropertyValue>& xBitmap )
+{
+ m_aImages.push_back( xBitmap );
+ return m_aImages.size()-1;
+}
+
+void ImageContainer::writeBase64EncodedStream( ImageId nId, EmitContext& rContext )
+{
+ OSL_ASSERT( nId >= 0 && o3tl::make_unsigned(nId) < m_aImages.size() );
+
+ const uno::Sequence<beans::PropertyValue>& rEntry( m_aImages[nId] );
+
+ // find "InputSequence" property
+ const beans::PropertyValue* pAry(rEntry.getConstArray());
+ const sal_Int32 nLen(rEntry.getLength());
+ const beans::PropertyValue* pValue(
+ std::find_if(pAry, pAry+nLen,
+ [] (beans::PropertyValue const& v) -> bool {
+ return v.Name == "InputSequence";
+ }));
+
+ if (pValue == pAry + nLen )
+ {
+ SAL_WARN("sdext.pdfimport", "InputSequence not found");
+ return;
+ }
+
+ uno::Sequence<sal_Int8> aData;
+ if( !(pValue->Value >>= aData) )
+ {
+ SAL_WARN("sdext.pdfimport", "Wrong data type");
+ return;
+ }
+
+ rContext.rEmitter.write( encodeBase64( aData.getConstArray(), aData.getLength() ));
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */