/* -*- 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/.

 *

 */

#include <pdf/ResourceDict.hxx>

#include <pdf/COSWriter.hxx>

namespace vcl::pdf

{

namespace

{

void appendResourceMap(OStringBuffer& rBuf, const char* pPrefix,

                       std::map<OString, sal_Int32> const& rList)

{

    if (rList.empty())

        return;

    rBuf.append('/');

    rBuf.append(pPrefix);

    rBuf.append("<<");

    int ni = 0;

    for (auto const& item : rList)

    {

        if (!item.first.isEmpty() && item.second > 0)

        {

            rBuf.append('/');

            rBuf.append(item.first);

            rBuf.append(' ');

            rBuf.append(item.second);

            rBuf.append(" 0 R");

            if (((++ni) & 7) == 0)

                rBuf.append('\n');

        }

    }

    rBuf.append(">>\n");

}

}

void ResourceDict::append(OStringBuffer& rBuf, sal_Int32 nFontDictObject,

                          PDFWriter::PDFVersion eVersion)

{

    COSWriter aWriter(rBuf);

    aWriter.startDict();

    if (nFontDictObject)

        aWriter.writeKeyAndReference("/Font", nFontDictObject);

    appendResourceMap(rBuf, "XObject", m_aXObjects);

    appendResourceMap(rBuf, "ExtGState", m_aExtGStates);

    appendResourceMap(rBuf, "Shading", m_aShadings);

    appendResourceMap(rBuf, "Pattern", m_aPatterns);

    if (eVersion < PDFWriter::PDFVersion::PDF_2_0)

    {

        rBuf.append("/ProcSet");

        rBuf.append("[");

        rBuf.append("/PDF/Text");

        if (!m_aXObjects.empty())

            rBuf.append("/ImageC/ImageI/ImageB");

        rBuf.append("]\n");

    }

    aWriter.endDict();

}

} // end vcl::pdf

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */