1 // Copyright 2014 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #ifndef _FPDF_TAGGED_H_ 8 #define _FPDF_TAGGED_H_ 9 class CPDF_StructTree; 10 class CPDF_StructElement; 11 struct CPDF_StructKid; 12 class CPDF_Document; 13 class CPDF_Page; 14 class IPDF_ReflowEngine; 15 class IPDF_ReflowedPage; 16 class CPDF_StructTree : public CFX_Object 17 { 18 public: 19 20 static CPDF_StructTree* LoadDoc(const CPDF_Document* pDoc); 21 22 static CPDF_StructTree* LoadPage(const CPDF_Document* pDoc, const CPDF_Dictionary* pPageDict); 23 ~CPDF_StructTree()24 virtual ~CPDF_StructTree() {} 25 26 virtual int CountTopElements() const = 0; 27 28 virtual CPDF_StructElement* GetTopElement(int i) const = 0; 29 }; 30 struct CPDF_StructKid { 31 enum { 32 Invalid, 33 Element, 34 PageContent, 35 StreamContent, 36 Object 37 } m_Type; 38 39 union { 40 struct { 41 42 CPDF_StructElement* m_pElement; 43 44 CPDF_Dictionary* m_pDict; 45 } m_Element; 46 struct { 47 48 FX_DWORD m_PageObjNum; 49 50 FX_DWORD m_ContentId; 51 } m_PageContent; 52 struct { 53 54 FX_DWORD m_PageObjNum; 55 56 FX_DWORD m_ContentId; 57 58 FX_DWORD m_RefObjNum; 59 } m_StreamContent; 60 struct { 61 62 FX_DWORD m_PageObjNum; 63 64 FX_DWORD m_RefObjNum; 65 } m_Object; 66 }; 67 }; 68 class CPDF_StructElement : public CFX_Object 69 { 70 public: 71 72 virtual CPDF_StructTree* GetTree() const = 0; 73 74 virtual const CFX_ByteString& GetType() const = 0; 75 76 virtual CPDF_StructElement* GetParent() const = 0; 77 78 virtual CPDF_Dictionary * GetDict() const = 0; 79 80 virtual int CountKids() const = 0; 81 82 virtual const CPDF_StructKid& GetKid(int index) const = 0; 83 84 virtual CFX_PtrArray* GetObjectArray() = 0; 85 86 virtual CPDF_Object* GetAttr(FX_BSTR owner, FX_BSTR name, FX_BOOL bInheritable = FALSE, FX_FLOAT fLevel = 0.0F) = 0; 87 88 89 90 virtual CFX_ByteString GetName(FX_BSTR owner, FX_BSTR name, FX_BSTR default_value, FX_BOOL bInheritable = FALSE, int subindex = -1) = 0; 91 92 virtual FX_ARGB GetColor(FX_BSTR owner, FX_BSTR name, FX_ARGB default_value, FX_BOOL bInheritable = FALSE, int subindex = -1) = 0; 93 94 virtual FX_FLOAT GetNumber(FX_BSTR owner, FX_BSTR name, FX_FLOAT default_value, FX_BOOL bInheritable = FALSE, int subindex = -1) = 0; 95 96 virtual int GetInteger(FX_BSTR owner, FX_BSTR name, int default_value, FX_BOOL bInheritable = FALSE, int subindex = -1) = 0; 97 98 }; 99 #endif 100