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1 // Copyright 2016 PDFium Authors. All rights reserved. | 1 // Copyright 2016 PDFium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
6 | 6 |
7 #ifndef CORE_FPDFAPI_PARSER_CPDF_DOCUMENT_H_ | 7 #ifndef CORE_FPDFAPI_PARSER_CPDF_DOCUMENT_H_ |
8 #define CORE_FPDFAPI_PARSER_CPDF_DOCUMENT_H_ | 8 #define CORE_FPDFAPI_PARSER_CPDF_DOCUMENT_H_ |
9 | 9 |
10 #include <functional> | 10 #include <functional> |
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98 bool bVert, | 98 bool bVert, |
99 bool bTranslateName = false); | 99 bool bTranslateName = false); |
100 CPDF_Font* AddWindowsFont(LOGFONTW* pLogFont, | 100 CPDF_Font* AddWindowsFont(LOGFONTW* pLogFont, |
101 bool bVert, | 101 bool bVert, |
102 bool bTranslateName = false); | 102 bool bTranslateName = false); |
103 #endif | 103 #endif |
104 | 104 |
105 protected: | 105 protected: |
106 // Retrieve page count information by getting count value from the tree nodes | 106 // Retrieve page count information by getting count value from the tree nodes |
107 int RetrievePageCount() const; | 107 int RetrievePageCount() const; |
108 CPDF_Dictionary* FindPDFPage(CPDF_Dictionary* pPages, | 108 // When this method is called, m_pTreeTraversal[level] exists. |
109 int iPage, | 109 CPDF_Dictionary* TraversePDFPages(int iPage, int* nPagesToGo, size_t level); |
110 int nPagesToGo, | |
111 int level); | |
112 int FindPageIndex(CPDF_Dictionary* pNode, | 110 int FindPageIndex(CPDF_Dictionary* pNode, |
113 uint32_t& skip_count, | 111 uint32_t& skip_count, |
114 uint32_t objnum, | 112 uint32_t objnum, |
115 int& index, | 113 int& index, |
116 int level = 0); | 114 int level = 0); |
117 CPDF_Object* ParseIndirectObject(uint32_t objnum) override; | 115 CPDF_Object* ParseIndirectObject(uint32_t objnum) override; |
118 void LoadDocInternal(); | 116 void LoadDocInternal(); |
119 size_t CalculateEncodingDict(int charset, CPDF_Dictionary* pBaseDict); | 117 size_t CalculateEncodingDict(int charset, CPDF_Dictionary* pBaseDict); |
120 CPDF_Dictionary* GetPagesDict() const; | 118 CPDF_Dictionary* GetPagesDict() const; |
121 CPDF_Dictionary* ProcessbCJK( | 119 CPDF_Dictionary* ProcessbCJK( |
122 CPDF_Dictionary* pBaseDict, | 120 CPDF_Dictionary* pBaseDict, |
123 int charset, | 121 int charset, |
124 bool bVert, | 122 bool bVert, |
125 CFX_ByteString basefont, | 123 CFX_ByteString basefont, |
126 std::function<void(FX_WCHAR, FX_WCHAR, CPDF_Array*)> Insert); | 124 std::function<void(FX_WCHAR, FX_WCHAR, CPDF_Array*)> Insert); |
127 bool InsertDeletePDFPage(CPDF_Dictionary* pPages, | 125 bool InsertDeletePDFPage(CPDF_Dictionary* pPages, |
128 int nPagesToGo, | 126 int nPagesToGo, |
129 CPDF_Dictionary* pPageDict, | 127 CPDF_Dictionary* pPageDict, |
130 bool bInsert, | 128 bool bInsert, |
131 std::set<CPDF_Dictionary*>* pVisited); | 129 std::set<CPDF_Dictionary*>* pVisited); |
132 bool InsertNewPage(int iPage, CPDF_Dictionary* pPageDict); | 130 bool InsertNewPage(int iPage, CPDF_Dictionary* pPageDict); |
| 131 void ResetTraversal(); |
133 | 132 |
134 std::unique_ptr<CPDF_Parser> m_pParser; | 133 std::unique_ptr<CPDF_Parser> m_pParser; |
135 CPDF_Dictionary* m_pRootDict; | 134 CPDF_Dictionary* m_pRootDict; |
136 CPDF_Dictionary* m_pInfoDict; | 135 CPDF_Dictionary* m_pInfoDict; |
| 136 // Vector of pairs to know current position in the page tree. The index in the |
| 137 // vector corresponds to the level being described. The pair contains a |
| 138 // pointer to the dictionary being processed at the level, and an index of the |
| 139 // of the child being processed within the dictionary's /Kids array. |
| 140 std::vector<std::pair<CPDF_Dictionary*, size_t>> m_pTreeTraversal; |
| 141 // Index of the next page that will be traversed from the page tree. |
| 142 int m_iNextPageToTraverse; |
137 bool m_bLinearized; | 143 bool m_bLinearized; |
138 int m_iFirstPageNo; | 144 int m_iFirstPageNo; |
139 uint32_t m_dwFirstPageObjNum; | 145 uint32_t m_dwFirstPageObjNum; |
140 // TODO(thestig): Figure out why this cannot be a std::unique_ptr. | 146 // TODO(thestig): Figure out why this cannot be a std::unique_ptr. |
141 CPDF_DocPageData* m_pDocPage; | 147 CPDF_DocPageData* m_pDocPage; |
142 std::unique_ptr<CPDF_DocRenderData> m_pDocRender; | 148 std::unique_ptr<CPDF_DocRenderData> m_pDocRender; |
143 std::unique_ptr<JBig2_DocumentContext> m_pCodecContext; | 149 std::unique_ptr<JBig2_DocumentContext> m_pCodecContext; |
144 std::unique_ptr<CPDF_LinkList> m_pLinksContext; | 150 std::unique_ptr<CPDF_LinkList> m_pLinksContext; |
145 CFX_ArrayTemplate<uint32_t> m_PageList; | 151 CFX_ArrayTemplate<uint32_t> m_PageList; |
146 CFX_WeakPtr<CFX_ByteStringPool> m_pByteStringPool; | 152 CFX_WeakPtr<CFX_ByteStringPool> m_pByteStringPool; |
147 }; | 153 }; |
148 | 154 |
149 #endif // CORE_FPDFAPI_PARSER_CPDF_DOCUMENT_H_ | 155 #endif // CORE_FPDFAPI_PARSER_CPDF_DOCUMENT_H_ |
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