vcl/source/pdf/ResourceDict.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  */
  10
  11 #include <pdf/ResourceDict.hxx>
  12
  13 namespace vcl::pdf
  14 {
  15 namespace
  16 {
  17 void appendResourceMap(OStringBuffer& rBuf, const char* pPrefix,
  18                        std::map<OString, sal_Int32> const& rList)
  19 {
  20     if (rList.empty())
  21         return;
  22     rBuf.append('/');
  23     rBuf.append(pPrefix);
  24     rBuf.append("<<");
  25     int ni = 0;
  26     for (auto const& item : rList)
  27     {
  28         if (!item.first.isEmpty() && item.second > 0)
  29         {
  30             rBuf.append('/');
  31             rBuf.append(item.first);
  32             rBuf.append(' ');
  33             rBuf.append(item.second);
  34             rBuf.append(" 0 R");
  35             if (((++ni) & 7) == 0)
  36                 rBuf.append('\n');
  37         }
  38     }
  39     rBuf.append(">>\n");
  40 }
  41 }
  42
  43 void ResourceDict::append(OStringBuffer& rBuf, sal_Int32 nFontDictObject)
  44 {
  45     rBuf.append("<</Font ");
  46     rBuf.append(nFontDictObject);
  47     rBuf.append(" 0 R\n");
  48     appendResourceMap(rBuf, "XObject", m_aXObjects);
  49     appendResourceMap(rBuf, "ExtGState", m_aExtGStates);
  50     appendResourceMap(rBuf, "Shading", m_aShadings);
  51     appendResourceMap(rBuf, "Pattern", m_aPatterns);
  52     rBuf.append("/ProcSet[/PDF/Text");
  53     if (!m_aXObjects.empty())
  54         rBuf.append("/ImageC/ImageI/ImageB");
  55     rBuf.append("]\n>>\n");
  56 }
  57
  58 } // end vcl::pdf
  59
  60 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */