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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/.
*/
#pragma once
#include <sal/types.h>
#include <sal/log.hxx>
#include <vcl/dllapi.h>
#include <map>
#include <vector>
#include <memory>
#include <vcl/filter/pdfdocument.hxx>
#include <vcl/BinaryDataContainer.hxx>
namespace vcl
{
// A external PDF stream, which stores the PDF stream data as byte array.
// This struct is also responsible to parsing the stream as a PDFDocument,
// and store its instance for the life-cycle of the struct, so that it
// reused to avoid unnecessary parsing.
struct VCL_DLLPUBLIC ExternalPDFStream
{
BinaryDataContainer maDataContainer;
std::shared_ptr<filter::PDFDocument> mpPDFDocument;
std::map<sal_Int32, sal_Int32> maCopiedResources;
std::map<sal_Int32, sal_Int32>& getCopiedResources() { return maCopiedResources; }
std::shared_ptr<filter::PDFDocument>& getPDFDocument()
{
if (!mpPDFDocument)
{
std::shared_ptr<SvStream> aPDFStream = maDataContainer.getAsStream();
auto pPDFDocument = std::make_shared<filter::PDFDocument>();
if (!pPDFDocument->ReadWithPossibleFixup(*aPDFStream))
{
SAL_WARN("vcl.pdfwriter",
"PDFWriterImpl::writeReferenceXObject: reading the PDF document failed");
}
else
{
mpPDFDocument = std::move(pPDFDocument);
}
}
return mpPDFDocument;
}
};
// Class to manage external PDF streams, for the de-duplication purpose.
class ExternalPDFStreams
{
private:
std::map<std::vector<sal_uInt8>, sal_Int32> maStreamIndexMap;
std::vector<ExternalPDFStream> maStreamList;
public:
ExternalPDFStreams() {}
sal_Int32 store(BinaryDataContainer const& rDataContainer);
ExternalPDFStream& get(sal_uInt32 nIndex);
};
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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