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// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef CORE_FPDFDOC_TAGGED_INT_H_
#define CORE_FPDFDOC_TAGGED_INT_H_
#include <map>
#include <memory>
#include <vector>
#include "core/fpdfdoc/fpdf_tagged.h"
#include "core/fxcrt/cfx_retain_ptr.h"
#include "third_party/base/stl_util.h"
class CPDF_StructElement;
struct CPDF_StructKid {
CPDF_StructKid();
CPDF_StructKid(const CPDF_StructKid& that);
~CPDF_StructKid();
enum { Invalid, Element, PageContent, StreamContent, Object } m_Type;
CFX_RetainPtr<CPDF_StructElement> m_pElement; // For Element.
CPDF_Dictionary* m_pDict; // For Element.
uint32_t m_PageObjNum; // For PageContent, StreamContent, Object.
uint32_t m_RefObjNum; // For StreamContent, Object.
uint32_t m_ContentId; // For PageContent, StreamContent.
};
class CPDF_StructTree final : public IPDF_StructTree {
public:
explicit CPDF_StructTree(const CPDF_Document* pDoc);
~CPDF_StructTree() override;
// IPDF_StructTree:
int CountTopElements() const override;
IPDF_StructElement* GetTopElement(int i) const override;
void LoadPageTree(const CPDF_Dictionary* pPageDict);
CFX_RetainPtr<CPDF_StructElement> AddPageNode(
CPDF_Dictionary* pElement,
std::map<CPDF_Dictionary*, CFX_RetainPtr<CPDF_StructElement>>* map,
int nLevel = 0);
bool AddTopLevelNode(CPDF_Dictionary* pDict,
const CFX_RetainPtr<CPDF_StructElement>& pElement);
protected:
const CPDF_Dictionary* const m_pTreeRoot;
const CPDF_Dictionary* const m_pRoleMap;
const CPDF_Dictionary* m_pPage;
std::vector<CFX_RetainPtr<CPDF_StructElement>> m_Kids;
friend class CPDF_StructElement;
};
class CPDF_StructElement final : public CFX_Retainable,
public IPDF_StructElement {
public:
template <typename T, typename... Args>
friend CFX_RetainPtr<T> pdfium::MakeRetain(Args&&... args);
// IPDF_StructElement
IPDF_StructTree* GetTree() const override;
const CFX_ByteString& GetType() const override;
IPDF_StructElement* GetParent() const override;
CPDF_Dictionary* GetDict() const override;
int CountKids() const override;
IPDF_StructElement* GetKidIfElement(int index) const override;
CPDF_Object* GetAttr(const CFX_ByteStringC& owner,
const CFX_ByteStringC& name,
bool bInheritable = false,
float fLevel = 0.0F) override;
CFX_ByteString GetName(const CFX_ByteStringC& owner,
const CFX_ByteStringC& name,
const CFX_ByteStringC& default_value,
bool bInheritable = false,
int subindex = -1) override;
FX_ARGB GetColor(const CFX_ByteStringC& owner,
const CFX_ByteStringC& name,
FX_ARGB default_value,
bool bInheritable = false,
int subindex = -1) override;
float GetNumber(const CFX_ByteStringC& owner,
const CFX_ByteStringC& name,
float default_value,
bool bInheritable = false,
int subindex = -1) override;
int GetInteger(const CFX_ByteStringC& owner,
const CFX_ByteStringC& name,
int default_value,
bool bInheritable = false,
int subindex = -1) override;
std::vector<CPDF_StructKid>* GetKids() { return &m_Kids; }
void LoadKids(CPDF_Dictionary* pDict);
void LoadKid(uint32_t PageObjNum, CPDF_Object* pObj, CPDF_StructKid* pKid);
CPDF_Object* GetAttr(const CFX_ByteStringC& owner,
const CFX_ByteStringC& name,
bool bInheritable,
int subindex);
private:
CPDF_StructElement(CPDF_StructTree* pTree,
CPDF_StructElement* pParent,
CPDF_Dictionary* pDict);
~CPDF_StructElement() override;
CPDF_StructTree* const m_pTree;
CPDF_StructElement* const m_pParent;
CPDF_Dictionary* const m_pDict;
CFX_ByteString m_Type;
std::vector<CPDF_StructKid> m_Kids;
};
#endif // CORE_FPDFDOC_TAGGED_INT_H_
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