| // 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_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/fx_coordinates.h" |
| #include "core/fxcrt/fx_string.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 : 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( |
| const CPDF_Stream* pFontStream) override; |
| void MaybePurgeFontFileStreamAcc(const CPDF_Stream* pFontStream) override; |
| |
| // CPDF_Font::FormFactoryIFace: |
| std::unique_ptr<CPDF_Font::FormIface> CreateForm( |
| CPDF_Document* pDocument, |
| CPDF_Dictionary* pPageResources, |
| CPDF_Stream* pFormStream) override; |
| |
| bool IsForceClear() const { return m_bForceClear; } |
| |
| RetainPtr<CPDF_Font> AddFont(std::unique_ptr<CFX_Font> pFont, int charset); |
| RetainPtr<CPDF_Font> GetFont(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 defined(OS_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(CPDF_Object* pPatternObj, |
| const CFX_Matrix& matrix); |
| RetainPtr<CPDF_ShadingPattern> GetShading(CPDF_Object* pPatternObj, |
| const CFX_Matrix& matrix); |
| |
| RetainPtr<CPDF_Image> GetImage(uint32_t dwStreamObjNum); |
| void MaybePurgeImage(uint32_t dwStreamObjNum); |
| |
| RetainPtr<CPDF_IccProfile> GetIccProfile(const CPDF_Stream* pProfileStream); |
| |
| private: |
| // 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(int charset, CPDF_Dictionary* pBaseDict); |
| CPDF_Dictionary* ProcessbCJK( |
| CPDF_Dictionary* pBaseDict, |
| int 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<ByteString, RetainPtr<const CPDF_Stream>> m_HashProfileMap; |
| std::map<const CPDF_Object*, ObservedPtr<CPDF_ColorSpace>> m_ColorSpaceMap; |
| std::map<const CPDF_Stream*, RetainPtr<CPDF_StreamAcc>> m_FontFileMap; |
| std::map<const CPDF_Stream*, ObservedPtr<CPDF_IccProfile>> m_IccProfileMap; |
| std::map<const CPDF_Object*, ObservedPtr<CPDF_Pattern>> m_PatternMap; |
| std::map<uint32_t, RetainPtr<CPDF_Image>> m_ImageMap; |
| std::map<const CPDF_Dictionary*, ObservedPtr<CPDF_Font>> m_FontMap; |
| }; |
| |
| #endif // CORE_FPDFAPI_PAGE_CPDF_DOCPAGEDATA_H_ |