53 lines
1.8 KiB
C++
53 lines
1.8 KiB
C++
// Copyright 2017 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#ifndef CORE_FPDFDOC_CPDF_STRUCTTREE_H_
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#define CORE_FPDFDOC_CPDF_STRUCTTREE_H_
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#include <map>
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#include <memory>
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#include <vector>
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#include "core/fxcrt/retain_ptr.h"
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class CPDF_Dictionary;
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class CPDF_Document;
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class CPDF_StructElement;
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class CPDF_StructTree {
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public:
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static std::unique_ptr<CPDF_StructTree> LoadPage(
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const CPDF_Document* pDoc,
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const CPDF_Dictionary* pPageDict);
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explicit CPDF_StructTree(const CPDF_Document* pDoc);
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~CPDF_StructTree();
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size_t CountTopElements() const { return m_Kids.size(); }
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CPDF_StructElement* GetTopElement(size_t i) const { return m_Kids[i].Get(); }
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const CPDF_Dictionary* GetRoleMap() const { return m_pRoleMap.Get(); }
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const CPDF_Dictionary* GetPage() const { return m_pPage.Get(); }
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const CPDF_Dictionary* GetTreeRoot() const { return m_pTreeRoot.Get(); }
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private:
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using StructElementMap =
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std::map<const CPDF_Dictionary*, RetainPtr<CPDF_StructElement>>;
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void LoadPageTree(const CPDF_Dictionary* pPageDict);
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RetainPtr<CPDF_StructElement> AddPageNode(const CPDF_Dictionary* pDict,
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StructElementMap* map,
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int nLevel);
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bool AddTopLevelNode(const CPDF_Dictionary* pDict,
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const RetainPtr<CPDF_StructElement>& pElement);
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RetainPtr<const CPDF_Dictionary> const m_pTreeRoot;
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RetainPtr<const CPDF_Dictionary> const m_pRoleMap;
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RetainPtr<const CPDF_Dictionary> m_pPage;
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std::vector<RetainPtr<CPDF_StructElement>> m_Kids;
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};
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#endif // CORE_FPDFDOC_CPDF_STRUCTTREE_H_
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