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Currently, SystemFontInfoIface implementations (like CFX_Win32FontInfo) store a pointer to CFX_FontMapper during EnumFontList() because they need it later during MapFont() calls. This CL changes SystemFontInfoIface::MapFont() signature to accept CFX_FontMapper* as the first argument. Since CFX_FontMapper is always the caller of MapFont(), it can pass itself. This allows removing the mapper_ member variable from SystemFontInfoIface implementations. For CFX_Win32FontInfo, the GDI callback state (last_family) is also moved out of the class and into a local FontEnumCallbackArg struct used only during enumeration. AddInstalledFont() is decoupled from this struct by passing the required pointers directly. TAG=agy CONV=30003669-9b4b-42c1-bdbf-15c9e0075074 Change-Id: Ib5a79bd4ef31360ea5cab496d706eecf59b35381 Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/150610 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: Tom Sepez <tsepez@chromium.org>
103 lines
3.4 KiB
C++
103 lines
3.4 KiB
C++
// Copyright 2016 The PDFium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#ifndef CORE_FXGE_CFX_FOLDERFONTINFO_H_
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#define CORE_FXGE_CFX_FOLDERFONTINFO_H_
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#include <map>
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#include <memory>
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#include <vector>
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#include "core/fxcrt/fx_codepage_forward.h"
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#include "core/fxcrt/mask.h"
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#include "core/fxge/cfx_fontmapper.h"
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#include "core/fxge/systemfontinfo_iface.h"
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class CFX_FolderFontInfo : public SystemFontInfoIface {
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public:
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static bool FindFamilyNameMatch(ByteStringView family_name,
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const ByteString& installed_font_name);
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static ByteString ReadStringFromFile(FILE* pFile, uint32_t size);
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CFX_FolderFontInfo();
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~CFX_FolderFontInfo() override;
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void AddPath(const ByteString& path);
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// SystemFontInfoIface:
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void EnumFontList(CFX_FontMapper* pMapper) override;
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void* MapFont(CFX_FontMapper* mapper,
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int weight,
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bool italic,
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FX_Charset charset,
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int pitch_family,
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const ByteString& face) override;
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void* GetFont(const ByteString& face) override;
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size_t GetFontData(void* hFont,
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uint32_t table,
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pdfium::span<uint8_t> buffer) override;
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void DeleteFont(void* hFont) override;
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bool GetFaceName(void* hFont, ByteString* name) override;
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bool GetFontCharset(void* hFont, FX_Charset* charset) override;
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protected:
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friend class CFXFolderFontInfoTest;
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class FontFaceInfo {
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public:
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static constexpr int32_t kSimilarityScoreMax = 68;
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FontFaceInfo(ByteString filePath,
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ByteString faceName,
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ByteString fontTables,
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uint32_t fontOffset,
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uint32_t fileSize);
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bool IsEligibleForFindFont(FX_CharsetFlag flag, FX_Charset charset) const;
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int32_t SimilarityScore(int weight,
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bool italic,
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int pitch_family,
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bool exact_match_bonus) const;
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const ByteString file_path_;
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const ByteString face_name_;
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const ByteString font_tables_;
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const uint32_t font_offset_;
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const uint32_t file_size_;
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uint32_t styles_ = 0;
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Mask<FX_CharsetFlag> charsets_;
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uint32_t glyph_count_ = 0;
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};
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virtual bool IsBetterMatch(const FontFaceInfo* candidate,
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int32_t candidate_score,
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const FontFaceInfo* current_best,
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int32_t current_best_score,
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FX_Charset charset,
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const ByteString& family,
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bool must_match_name) const;
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void ScanPath(CFX_FontMapper* mapper, const ByteString& path);
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void ScanFile(CFX_FontMapper* mapper, const ByteString& path);
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void ReportFace(CFX_FontMapper* mapper,
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const ByteString& path,
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FILE* pFile,
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FX_FILESIZE filesize,
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uint32_t offset);
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void* GetSubstFont(const ByteString& face);
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void* FindFont(int weight,
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bool italic,
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FX_Charset charset,
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int pitch_family,
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const ByteString& family,
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bool must_match_name);
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std::map<ByteString, std::unique_ptr<FontFaceInfo>> font_list_;
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std::vector<ByteString> path_list_;
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};
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#endif // CORE_FXGE_CFX_FOLDERFONTINFO_H_
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