| // 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_FXGE_CFX_FONTMGR_H_ |
| #define CORE_FXGE_CFX_FONTMGR_H_ |
| |
| #include <map> |
| #include <memory> |
| |
| #include "core/fxcrt/fx_codepage_forward.h" |
| #include "core/fxcrt/fx_memory_wrappers.h" |
| #include "core/fxcrt/fx_string.h" |
| #include "core/fxcrt/observed_ptr.h" |
| #include "core/fxcrt/retain_ptr.h" |
| #include "core/fxge/fx_freetype.h" |
| #include "third_party/base/optional.h" |
| #include "third_party/base/span.h" |
| |
| class CFX_Face; |
| class CFX_FontMapper; |
| class CFX_SubstFont; |
| class SystemFontInfoIface; |
| |
| class CFX_FontMgr { |
| public: |
| class FontDesc final : public Retainable, public Observable { |
| public: |
| CONSTRUCT_VIA_MAKE_RETAIN; |
| ~FontDesc() override; |
| |
| pdfium::span<uint8_t> FontData() const { |
| return {m_pFontData.get(), m_Size}; |
| } |
| void SetFace(size_t index, CFX_Face* face); |
| CFX_Face* GetFace(size_t index) const; |
| |
| private: |
| FontDesc(std::unique_ptr<uint8_t, FxFreeDeleter> pData, size_t size); |
| |
| const size_t m_Size; |
| std::unique_ptr<uint8_t, FxFreeDeleter> const m_pFontData; |
| ObservedPtr<CFX_Face> m_TTCFaces[16]; |
| }; |
| |
| static Optional<pdfium::span<const uint8_t>> GetBuiltinFont(size_t index); |
| |
| 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, |
| std::unique_ptr<uint8_t, FxFreeDeleter> pData, |
| uint32_t size); |
| |
| RetainPtr<FontDesc> GetCachedTTCFontDesc(int ttc_size, uint32_t checksum); |
| RetainPtr<FontDesc> AddCachedTTCFontDesc( |
| int ttc_size, |
| uint32_t checksum, |
| std::unique_ptr<uint8_t, FxFreeDeleter> pData, |
| uint32_t size); |
| |
| RetainPtr<CFX_Face> NewFixedFace(const RetainPtr<FontDesc>& pDesc, |
| pdfium::span<const uint8_t> span, |
| int face_index); |
| RetainPtr<CFX_Face> FindSubstFont(const ByteString& face_name, |
| bool bTrueType, |
| uint32_t flags, |
| int weight, |
| int italic_angle, |
| FX_CodePage code_page, |
| CFX_SubstFont* pSubstFont); |
| |
| void SetSystemFontInfo(std::unique_ptr<SystemFontInfoIface> pFontInfo); |
| |
| // 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<ByteString, ObservedPtr<FontDesc>> m_FaceMap; |
| const bool m_FTLibrarySupportsHinting; |
| }; |
| |
| #endif // CORE_FXGE_CFX_FONTMGR_H_ |