mirror of https://github.com/JakubMelka/PDF4QT.git
94 lines
2.8 KiB
C++
94 lines
2.8 KiB
C++
// Copyright (C) 2018 Jakub Melka
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//
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// This file is part of PdfForQt.
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//
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// PdfForQt is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// PdfForQt is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with PDFForQt. If not, see <https://www.gnu.org/licenses/>.
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#ifndef PDFDOCUMENT_H
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#define PDFDOCUMENT_H
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#include "pdfglobal.h"
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#include "pdfobject.h"
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namespace pdf
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{
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/// Storage for objects. This class is not thread safe for writing (calling non-const functions). Caller must ensure
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/// locking, if this object is used from multiple threads. Calling const functions should be thread safe.
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class PDFObjectStorage
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{
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public:
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constexpr inline PDFObjectStorage() = default;
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constexpr inline PDFObjectStorage(const PDFObjectStorage&) = default;
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constexpr inline PDFObjectStorage(PDFObjectStorage&&) = default;
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constexpr inline PDFObjectStorage& operator=(const PDFObjectStorage&) = default;
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constexpr inline PDFObjectStorage& operator=(PDFObjectStorage&&) = default;
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struct Entry
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{
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constexpr inline explicit Entry() = default;
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inline explicit Entry(PDFInteger generation, PDFObject object) : generation(generation), object(std::move(object)) { }
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PDFInteger generation = 0;
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PDFObject object;
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};
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using PDFObjects = std::vector<Entry>;
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explicit PDFObjectStorage(PDFObjects&& objects, PDFObject&& trailerDictionary) :
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m_objects(std::move(objects)),
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m_trailerDictionary(std::move(trailerDictionary))
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{
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}
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/// Returns array of objects stored in this storage
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const PDFObjects& getObjects() const { return m_objects; }
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/// Returns trailer dictionary
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const PDFObject& getTrailerDictionary() const { return m_trailerDictionary; }
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private:
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PDFObjects m_objects;
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PDFObject m_trailerDictionary;
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};
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/// PDF document main class.
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class PDFDocument
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{
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public:
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explicit PDFDocument() = default;
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const PDFObjectStorage& getStorage() const { return m_pdfObjectStorage; }
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private:
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friend class PDFDocumentReader;
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explicit PDFDocument(PDFObjectStorage&& storage) :
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m_pdfObjectStorage(std::move(storage))
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{
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}
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/// Storage of objects
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PDFObjectStorage m_pdfObjectStorage;
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};
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} // namespace pdf
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#endif // PDFDOCUMENT_H
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