writerfilter/source/ooxml/OOXMLBinaryObjectReference.cxx

   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 #include "OOXMLBinaryObjectReference.hxx"
  20 #include <string.h>
  21
  22 namespace writerfilter::ooxml
  23 {
  24
  25 using namespace ::com::sun::star;
  26
  27 OOXMLBinaryObjectReference::OOXMLBinaryObjectReference
  28 (OOXMLStream::Pointer_t const & pStream)
  29 : mpStream(pStream), mbRead(false)
  30 {
  31 }
  32
  33 OOXMLBinaryObjectReference::~OOXMLBinaryObjectReference()
  34 {
  35 }
  36
  37 void OOXMLBinaryObjectReference::read()
  38 {
  39     sal_uInt32 nMaxReadBytes = 1024*1024;
  40     uno::Sequence<sal_Int8> aSeq(nMaxReadBytes);
  41     uno::Reference<io::XInputStream> xInputStream =
  42         mpStream->getDocumentStream();
  43
  44     sal_uInt32 nSize = 0;
  45     sal_uInt32 nOldSize = 0;
  46     sal_uInt32 nBytesRead = 0;
  47
  48     while ((nBytesRead = xInputStream->readSomeBytes(aSeq, nMaxReadBytes)) > 0)
  49     {
  50         nOldSize = nSize;
  51         nSize += nBytesRead;
  52         mSequence.resize(nSize);
  53
  54         memcpy(&mSequence[nOldSize], aSeq.getArray(), nBytesRead);
  55     }
  56
  57     mbRead = true;
  58 }
  59
  60 void OOXMLBinaryObjectReference::resolve(BinaryObj & rHandler)
  61 {
  62     if (! mbRead)
  63         read();
  64
  65     rHandler.data(reinterpret_cast<sal_uInt8 *>(mSequence.data()),
  66                   mSequence.size());
  67 }
  68
  69 }
  70
  71 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */