| // Copyright 2016 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_FPDFAPI_PARSER_CPDF_DOCUMENT_H_ |
| #define CORE_FPDFAPI_PARSER_CPDF_DOCUMENT_H_ |
| |
| #include <functional> |
| #include <memory> |
| #include <stack> |
| |
| #include "core/fpdfapi/parser/cpdf_indirect_object_holder.h" |
| #include "core/fpdfapi/parser/cpdf_object.h" |
| #include "core/fpdfdoc/cpdf_linklist.h" |
| #include "core/fxcrt/cfx_string_pool_template.h" |
| #include "core/fxcrt/cfx_weak_ptr.h" |
| #include "core/fxcrt/fx_basic.h" |
| |
| class CFX_Font; |
| class CFX_Matrix; |
| class CPDF_ColorSpace; |
| class CPDF_DocPageData; |
| class CPDF_DocRenderData; |
| class CPDF_Font; |
| class CPDF_FontEncoding; |
| class CPDF_IccProfile; |
| class CPDF_Image; |
| class CPDF_Parser; |
| class CPDF_Pattern; |
| class CPDF_StreamAcc; |
| class JBig2_DocumentContext; |
| |
| #define FPDFPERM_PRINT 0x0004 |
| #define FPDFPERM_MODIFY 0x0008 |
| #define FPDFPERM_EXTRACT 0x0010 |
| #define FPDFPERM_ANNOT_FORM 0x0020 |
| #define FPDFPERM_FILL_FORM 0x0100 |
| #define FPDFPERM_EXTRACT_ACCESS 0x0200 |
| #define FPDFPERM_ASSEMBLE 0x0400 |
| #define FPDFPERM_PRINT_HIGH 0x0800 |
| #define FPDF_PAGE_MAX_NUM 0xFFFFF |
| |
| class CPDF_Document : public CPDF_IndirectObjectHolder { |
| public: |
| explicit CPDF_Document(std::unique_ptr<CPDF_Parser> pParser); |
| ~CPDF_Document() override; |
| |
| CPDF_Parser* GetParser() const { return m_pParser.get(); } |
| CPDF_Dictionary* GetRoot() const { return m_pRootDict; } |
| CPDF_Dictionary* GetInfo() const { return m_pInfoDict; } |
| CFX_WeakPtr<CFX_ByteStringPool> GetByteStringPool() const { |
| return m_pByteStringPool; |
| } |
| |
| void DeletePage(int iPage); |
| int GetPageCount() const; |
| |
| bool IsPageLoaded(int iPage) const; |
| CPDF_Dictionary* GetPage(int iPage); |
| int GetPageIndex(uint32_t objnum); |
| uint32_t GetUserPermissions() const; |
| CPDF_DocPageData* GetPageData() const { return m_pDocPage; } |
| |
| void SetPageObjNum(int iPage, uint32_t objNum); |
| |
| std::unique_ptr<JBig2_DocumentContext>* CodecContext() { |
| return &m_pCodecContext; |
| } |
| std::unique_ptr<CPDF_LinkList>* LinksContext() { return &m_pLinksContext; } |
| |
| CPDF_DocRenderData* GetRenderData() const { return m_pDocRender.get(); } |
| |
| // |pFontDict| must not be null. |
| CPDF_Font* LoadFont(CPDF_Dictionary* pFontDict); |
| CPDF_ColorSpace* LoadColorSpace(CPDF_Object* pCSObj, |
| CPDF_Dictionary* pResources = nullptr); |
| |
| CPDF_Pattern* LoadPattern(CPDF_Object* pObj, |
| bool bShading, |
| const CFX_Matrix& matrix); |
| |
| CPDF_Image* LoadImageF(CPDF_Object* pObj); |
| CPDF_StreamAcc* LoadFontFile(CPDF_Stream* pStream); |
| CPDF_IccProfile* LoadIccProfile(CPDF_Stream* pStream); |
| |
| void LoadDoc(); |
| void LoadLinearizedDoc(CPDF_Dictionary* pLinearizationParams); |
| void LoadPages(); |
| |
| void CreateNewDoc(); |
| CPDF_Dictionary* CreateNewPage(int iPage); |
| |
| CPDF_Font* AddStandardFont(const FX_CHAR* font, CPDF_FontEncoding* pEncoding); |
| CPDF_Font* AddFont(CFX_Font* pFont, int charset, FX_BOOL bVert); |
| #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ |
| CPDF_Font* AddWindowsFont(LOGFONTA* pLogFont, |
| FX_BOOL bVert, |
| FX_BOOL bTranslateName = FALSE); |
| CPDF_Font* AddWindowsFont(LOGFONTW* pLogFont, |
| FX_BOOL bVert, |
| FX_BOOL bTranslateName = FALSE); |
| #endif |
| |
| protected: |
| // Retrieve page count information by getting count value from the tree nodes |
| int RetrievePageCount() const; |
| CPDF_Dictionary* TraversePDFPages(int iPage, int nPagesToGo); |
| int FindPageIndex(CPDF_Dictionary* pNode, |
| uint32_t& skip_count, |
| uint32_t objnum, |
| int& index, |
| int level = 0); |
| CPDF_Object* ParseIndirectObject(uint32_t objnum) override; |
| void LoadDocInternal(); |
| size_t CalculateEncodingDict(int charset, CPDF_Dictionary* pBaseDict); |
| CPDF_Dictionary* GetPagesDict() const; |
| CPDF_Dictionary* ProcessbCJK( |
| CPDF_Dictionary* pBaseDict, |
| int charset, |
| FX_BOOL bVert, |
| CFX_ByteString basefont, |
| std::function<void(FX_WCHAR, FX_WCHAR, CPDF_Array*)> Insert); |
| int InsertDeletePDFPage(CPDF_Dictionary* pPages, |
| int nPagesToGo, |
| CPDF_Dictionary* pPage, |
| FX_BOOL bInsert, |
| std::set<CPDF_Dictionary*>* pVisited); |
| int InsertNewPage(int iPage, |
| CPDF_Dictionary* pPageDict, |
| CFX_ArrayTemplate<uint32_t>& pageList); |
| void PopAndPropagate(); |
| std::unique_ptr<CPDF_Parser> m_pParser; |
| CPDF_Dictionary* m_pRootDict; |
| CPDF_Dictionary* m_pInfoDict; |
| // Stack of page nodes to know current position in page tree. Int is the index |
| // of last processed child. |
| std::stack<std::pair<CPDF_Dictionary*, int>> m_pTreeTraversal; |
| // Index of last page (leaf) processed from page tree. |
| int m_iLastPageTraversed; |
| bool m_bLinearized; |
| int m_iFirstPageNo; |
| uint32_t m_dwFirstPageObjNum; |
| // TODO(thestig): Figure out why this cannot be a std::unique_ptr. |
| CPDF_DocPageData* m_pDocPage; |
| std::unique_ptr<CPDF_DocRenderData> m_pDocRender; |
| std::unique_ptr<JBig2_DocumentContext> m_pCodecContext; |
| std::unique_ptr<CPDF_LinkList> m_pLinksContext; |
| CFX_ArrayTemplate<uint32_t> m_PageList; |
| CFX_WeakPtr<CFX_ByteStringPool> m_pByteStringPool; |
| }; |
| |
| #endif // CORE_FPDFAPI_PARSER_CPDF_DOCUMENT_H_ |