| // 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_FXGE_CFX_FONTMGR_H_ |
| #define CORE_FXGE_CFX_FONTMGR_H_ |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #include <map> |
| #include <memory> |
| #include <tuple> |
| |
| #include "core/fxcrt/bytestring.h" |
| #include "core/fxcrt/fixed_uninit_data_vector.h" |
| #include "core/fxcrt/observed_ptr.h" |
| #include "core/fxcrt/retain_ptr.h" |
| #include "core/fxge/cfx_face.h" |
| #include "core/fxge/freetype/fx_freetype.h" |
| #include "third_party/base/span.h" |
| |
| class CFX_FontMapper; |
| |
| class CFX_FontMgr { |
| public: |
| class FontDesc final : public Retainable, public Observable { |
| public: |
| CONSTRUCT_VIA_MAKE_RETAIN; |
| ~FontDesc() override; |
| |
| pdfium::span<const uint8_t> FontData() const { return m_pFontData; } |
| void SetFace(size_t index, CFX_Face* face); |
| CFX_Face* GetFace(size_t index) const; |
| |
| private: |
| explicit FontDesc(FixedUninitDataVector<uint8_t> data); |
| |
| const FixedUninitDataVector<uint8_t> m_pFontData; |
| ObservedPtr<CFX_Face> m_TTCFaces[16]; |
| }; |
| |
| // `index` must be less than `CFX_FontMapper::kNumStandardFonts`. |
| static pdfium::span<const uint8_t> GetStandardFont(size_t index); |
| static pdfium::span<const uint8_t> GetGenericSansFont(); |
| static pdfium::span<const uint8_t> GetGenericSerifFont(); |
| |
| CFX_FontMgr(); |
| ~CFX_FontMgr(); |
| |
| RetainPtr<FontDesc> GetCachedFontDesc(const ByteString& face_name, |
| int weight, |
| bool bItalic); |
| RetainPtr<FontDesc> AddCachedFontDesc(const ByteString& face_name, |
| int weight, |
| bool bItalic, |
| FixedUninitDataVector<uint8_t> data); |
| |
| RetainPtr<FontDesc> GetCachedTTCFontDesc(size_t ttc_size, uint32_t checksum); |
| RetainPtr<FontDesc> AddCachedTTCFontDesc(size_t ttc_size, |
| uint32_t checksum, |
| FixedUninitDataVector<uint8_t> data); |
| |
| RetainPtr<CFX_Face> NewFixedFace(RetainPtr<FontDesc> pDesc, |
| pdfium::span<const uint8_t> span, |
| size_t face_index); |
| |
| // Always present. |
| CFX_FontMapper* GetBuiltinMapper() const { return m_pBuiltinMapper.get(); } |
| |
| FXFT_LibraryRec* GetFTLibrary() const { return m_FTLibrary.get(); } |
| bool FTLibrarySupportsHinting() const { return m_FTLibrarySupportsHinting; } |
| |
| private: |
| bool FreeTypeVersionSupportsHinting() const; |
| bool SetLcdFilterMode() const; |
| |
| // Must come before |m_pBuiltinMapper| and |m_FaceMap|. |
| ScopedFXFTLibraryRec const m_FTLibrary; |
| std::unique_ptr<CFX_FontMapper> m_pBuiltinMapper; |
| std::map<std::tuple<ByteString, int, bool>, ObservedPtr<FontDesc>> m_FaceMap; |
| std::map<std::tuple<size_t, uint32_t>, ObservedPtr<FontDesc>> m_TTCFaceMap; |
| const bool m_FTLibrarySupportsHinting; |
| }; |
| |
| #endif // CORE_FXGE_CFX_FONTMGR_H_ |