| // Copyright 2016 The PDFium Authors |
| // 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_PAGE_CPDF_DOCPAGEDATA_H_ |
| #define CORE_FPDFAPI_PAGE_CPDF_DOCPAGEDATA_H_ |
| |
| #include <map> |
| #include <memory> |
| #include <set> |
| |
| #include "core/fpdfapi/font/cpdf_font.h" |
| #include "core/fpdfapi/page/cpdf_colorspace.h" |
| #include "core/fpdfapi/parser/cpdf_document.h" |
| #include "core/fxcrt/bytestring.h" |
| #include "core/fxcrt/fx_codepage_forward.h" |
| #include "core/fxcrt/fx_coordinates.h" |
| #include "core/fxcrt/observed_ptr.h" |
| #include "core/fxcrt/retain_ptr.h" |
| |
| class CFX_Font; |
| class CPDF_Dictionary; |
| class CPDF_FontEncoding; |
| class CPDF_IccProfile; |
| class CPDF_Image; |
| class CPDF_Object; |
| class CPDF_Pattern; |
| class CPDF_Stream; |
| class CPDF_StreamAcc; |
| |
| class CPDF_DocPageData final : public CPDF_Document::PageDataIface, |
| public CPDF_Font::FormFactoryIface { |
| public: |
| static CPDF_DocPageData* FromDocument(const CPDF_Document* pDoc); |
| |
| CPDF_DocPageData(); |
| ~CPDF_DocPageData() override; |
| |
| // CPDF_Document::PageDataIface: |
| void ClearStockFont() override; |
| RetainPtr<CPDF_StreamAcc> GetFontFileStreamAcc( |
| RetainPtr<const CPDF_Stream> pFontStream) override; |
| void MaybePurgeFontFileStreamAcc( |
| RetainPtr<CPDF_StreamAcc>&& pStreamAcc) override; |
| void MaybePurgeImage(uint32_t dwStreamObjNum) override; |
| |
| // CPDF_Font::FormFactoryIFace: |
| std::unique_ptr<CPDF_Font::FormIface> CreateForm( |
| CPDF_Document* pDocument, |
| RetainPtr<CPDF_Dictionary> pPageResources, |
| RetainPtr<CPDF_Stream> pFormStream) override; |
| |
| bool IsForceClear() const { return m_bForceClear; } |
| |
| RetainPtr<CPDF_Font> AddFont(std::unique_ptr<CFX_Font> pFont, |
| FX_Charset charset); |
| RetainPtr<CPDF_Font> GetFont(RetainPtr<CPDF_Dictionary> pFontDict); |
| RetainPtr<CPDF_Font> AddStandardFont(const ByteString& fontName, |
| const CPDF_FontEncoding* pEncoding); |
| RetainPtr<CPDF_Font> GetStandardFont(const ByteString& fontName, |
| const CPDF_FontEncoding* pEncoding); |
| #if BUILDFLAG(IS_WIN) |
| RetainPtr<CPDF_Font> AddWindowsFont(LOGFONTA* pLogFont); |
| #endif |
| |
| // Loads a colorspace. |
| RetainPtr<CPDF_ColorSpace> GetColorSpace(const CPDF_Object* pCSObj, |
| const CPDF_Dictionary* pResources); |
| |
| // Loads a colorspace in a context that might be while loading another |
| // colorspace. |pVisited| is passed recursively to avoid circular calls |
| // involving CPDF_ColorSpace::Load(). |
| RetainPtr<CPDF_ColorSpace> GetColorSpaceGuarded( |
| const CPDF_Object* pCSObj, |
| const CPDF_Dictionary* pResources, |
| std::set<const CPDF_Object*>* pVisited); |
| |
| RetainPtr<CPDF_Pattern> GetPattern(RetainPtr<CPDF_Object> pPatternObj, |
| const CFX_Matrix& matrix); |
| RetainPtr<CPDF_ShadingPattern> GetShading(RetainPtr<CPDF_Object> pPatternObj, |
| const CFX_Matrix& matrix); |
| |
| RetainPtr<CPDF_Image> GetImage(uint32_t dwStreamObjNum); |
| |
| RetainPtr<CPDF_IccProfile> GetIccProfile( |
| RetainPtr<const CPDF_Stream> pProfileStream); |
| |
| private: |
| struct HashIccProfileKey { |
| HashIccProfileKey(ByteString digest, uint32_t components); |
| ~HashIccProfileKey(); |
| |
| bool operator<(const HashIccProfileKey& other) const; |
| |
| ByteString digest; |
| uint32_t components; |
| }; |
| |
| // Loads a colorspace in a context that might be while loading another |
| // colorspace, or even in a recursive call from this method itself. |pVisited| |
| // is passed recursively to avoid circular calls involving |
| // CPDF_ColorSpace::Load() and |pVisitedInternal| is also passed recursively |
| // to avoid circular calls with this method calling itself. |
| RetainPtr<CPDF_ColorSpace> GetColorSpaceInternal( |
| const CPDF_Object* pCSObj, |
| const CPDF_Dictionary* pResources, |
| std::set<const CPDF_Object*>* pVisited, |
| std::set<const CPDF_Object*>* pVisitedInternal); |
| |
| size_t CalculateEncodingDict(FX_Charset charset, CPDF_Dictionary* pBaseDict); |
| RetainPtr<CPDF_Dictionary> ProcessbCJK( |
| RetainPtr<CPDF_Dictionary> pBaseDict, |
| FX_Charset charset, |
| ByteString basefont, |
| std::function<void(wchar_t, wchar_t, CPDF_Array*)> Insert); |
| |
| bool m_bForceClear = false; |
| |
| // Specific destruction order may be required between maps. |
| std::map<HashIccProfileKey, RetainPtr<const CPDF_Stream>> m_HashIccProfileMap; |
| std::map<RetainPtr<const CPDF_Array>, ObservedPtr<CPDF_ColorSpace>> |
| m_ColorSpaceMap; |
| std::map<RetainPtr<const CPDF_Stream>, RetainPtr<CPDF_StreamAcc>> |
| m_FontFileMap; |
| std::map<RetainPtr<const CPDF_Stream>, ObservedPtr<CPDF_IccProfile>> |
| m_IccProfileMap; |
| std::map<RetainPtr<const CPDF_Object>, ObservedPtr<CPDF_Pattern>> |
| m_PatternMap; |
| std::map<uint32_t, RetainPtr<CPDF_Image>> m_ImageMap; |
| std::map<RetainPtr<const CPDF_Dictionary>, ObservedPtr<CPDF_Font>> m_FontMap; |
| }; |
| |
| #endif // CORE_FPDFAPI_PAGE_CPDF_DOCPAGEDATA_H_ |