73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
/* -*- 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: */
|