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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> |
11 #include <memory> | 11 #include <memory> |
| 12 #include <stack> |
12 | 13 |
13 #include "core/fpdfapi/parser/cpdf_indirect_object_holder.h" | 14 #include "core/fpdfapi/parser/cpdf_indirect_object_holder.h" |
14 #include "core/fpdfapi/parser/cpdf_object.h" | 15 #include "core/fpdfapi/parser/cpdf_object.h" |
15 #include "core/fpdfdoc/cpdf_linklist.h" | 16 #include "core/fpdfdoc/cpdf_linklist.h" |
16 #include "core/fxcrt/cfx_string_pool_template.h" | 17 #include "core/fxcrt/cfx_string_pool_template.h" |
17 #include "core/fxcrt/cfx_weak_ptr.h" | 18 #include "core/fxcrt/cfx_weak_ptr.h" |
18 #include "core/fxcrt/fx_basic.h" | 19 #include "core/fxcrt/fx_basic.h" |
19 | 20 |
20 class CFX_Font; | 21 class CFX_Font; |
21 class CFX_Matrix; | 22 class CFX_Matrix; |
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98 FX_BOOL bVert, | 99 FX_BOOL bVert, |
99 FX_BOOL bTranslateName = FALSE); | 100 FX_BOOL bTranslateName = FALSE); |
100 CPDF_Font* AddWindowsFont(LOGFONTW* pLogFont, | 101 CPDF_Font* AddWindowsFont(LOGFONTW* pLogFont, |
101 FX_BOOL bVert, | 102 FX_BOOL bVert, |
102 FX_BOOL bTranslateName = FALSE); | 103 FX_BOOL bTranslateName = FALSE); |
103 #endif | 104 #endif |
104 | 105 |
105 protected: | 106 protected: |
106 // Retrieve page count information by getting count value from the tree nodes | 107 // Retrieve page count information by getting count value from the tree nodes |
107 int RetrievePageCount() const; | 108 int RetrievePageCount() const; |
108 CPDF_Dictionary* FindPDFPage(CPDF_Dictionary* pPages, | 109 CPDF_Dictionary* TraversePDFPages(int iPage, int nPagesToGo); |
109 int iPage, | |
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 FX_BOOL bVert, | 122 FX_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 | 125 int InsertDeletePDFPage(CPDF_Dictionary* pPages, |
| 126 int nPagesToGo, |
| 127 CPDF_Dictionary* pPage, |
| 128 FX_BOOL bInsert, |
| 129 std::set<CPDF_Dictionary*>* pVisited); |
| 130 int InsertNewPage(int iPage, |
| 131 CPDF_Dictionary* pPageDict, |
| 132 CFX_ArrayTemplate<uint32_t>& pageList); |
| 133 void PopAndPropagate(); |
128 std::unique_ptr<CPDF_Parser> m_pParser; | 134 std::unique_ptr<CPDF_Parser> m_pParser; |
129 CPDF_Dictionary* m_pRootDict; | 135 CPDF_Dictionary* m_pRootDict; |
130 CPDF_Dictionary* m_pInfoDict; | 136 CPDF_Dictionary* m_pInfoDict; |
| 137 // Stack of page nodes to know current position in page tree. Int is the index |
| 138 // of last processed child. |
| 139 std::stack<std::pair<CPDF_Dictionary*, int>> m_pTreeTraversal; |
| 140 // Index of last page (leaf) processed from page tree. |
| 141 int m_iLastPageTraversed; |
131 bool m_bLinearized; | 142 bool m_bLinearized; |
132 int m_iFirstPageNo; | 143 int m_iFirstPageNo; |
133 uint32_t m_dwFirstPageObjNum; | 144 uint32_t m_dwFirstPageObjNum; |
134 // TODO(thestig): Figure out why this cannot be a std::unique_ptr. | 145 // TODO(thestig): Figure out why this cannot be a std::unique_ptr. |
135 CPDF_DocPageData* m_pDocPage; | 146 CPDF_DocPageData* m_pDocPage; |
136 std::unique_ptr<CPDF_DocRenderData> m_pDocRender; | 147 std::unique_ptr<CPDF_DocRenderData> m_pDocRender; |
137 std::unique_ptr<JBig2_DocumentContext> m_pCodecContext; | 148 std::unique_ptr<JBig2_DocumentContext> m_pCodecContext; |
138 std::unique_ptr<CPDF_LinkList> m_pLinksContext; | 149 std::unique_ptr<CPDF_LinkList> m_pLinksContext; |
139 CFX_ArrayTemplate<uint32_t> m_PageList; | 150 CFX_ArrayTemplate<uint32_t> m_PageList; |
140 CFX_WeakPtr<CFX_ByteStringPool> m_pByteStringPool; | 151 CFX_WeakPtr<CFX_ByteStringPool> m_pByteStringPool; |
141 }; | 152 }; |
142 | 153 |
143 #endif // CORE_FPDFAPI_PARSER_CPDF_DOCUMENT_H_ | 154 #endif // CORE_FPDFAPI_PARSER_CPDF_DOCUMENT_H_ |
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