139 lines
4.7 KiB
C++
139 lines
4.7 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_FONTMAPPER_H_
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#define CORE_FXGE_CFX_FONTMAPPER_H_
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#include <memory>
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#include <utility>
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#include <vector>
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#include "build/build_config.h"
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#include "core/fxcrt/bytestring.h"
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#include "core/fxcrt/fx_codepage_forward.h"
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#include "core/fxcrt/retain_ptr.h"
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#include "core/fxcrt/unowned_ptr.h"
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#include "core/fxge/cfx_face.h"
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#include "third_party/abseil-cpp/absl/types/optional.h"
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#ifdef PDF_ENABLE_XFA
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#include "core/fxcrt/fixed_uninit_data_vector.h"
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#endif
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class CFX_FontMgr;
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class CFX_SubstFont;
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class SystemFontInfoIface;
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class CFX_FontMapper {
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public:
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enum StandardFont : uint8_t {
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kCourier = 0,
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kCourierBold,
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kCourierBoldOblique,
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kCourierOblique,
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kHelvetica,
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kHelveticaBold,
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kHelveticaBoldOblique,
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kHelveticaOblique,
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kTimes,
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kTimesBold,
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kTimesBoldOblique,
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kTimesOblique,
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kSymbol,
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kDingbats,
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kLast = kDingbats
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};
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static constexpr int kNumStandardFonts = 14;
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explicit CFX_FontMapper(CFX_FontMgr* mgr);
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~CFX_FontMapper();
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static absl::optional<StandardFont> GetStandardFontName(ByteString* name);
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static bool IsStandardFontName(const ByteString& name);
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static bool IsSymbolicFont(StandardFont font);
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static bool IsFixedFont(StandardFont font);
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static constexpr uint32_t MakeTag(char c1, char c2, char c3, char c4) {
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return static_cast<uint8_t>(c1) << 24 | static_cast<uint8_t>(c2) << 16 |
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static_cast<uint8_t>(c3) << 8 | static_cast<uint8_t>(c4);
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}
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void SetSystemFontInfo(std::unique_ptr<SystemFontInfoIface> pFontInfo);
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std::unique_ptr<SystemFontInfoIface> TakeSystemFontInfo();
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void AddInstalledFont(const ByteString& name, FX_Charset charset);
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void LoadInstalledFonts();
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RetainPtr<CFX_Face> FindSubstFont(const ByteString& face_name,
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bool is_truetype,
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uint32_t flags,
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int weight,
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int italic_angle,
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FX_CodePage code_page,
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CFX_SubstFont* subst_font);
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size_t GetFaceSize() const;
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// `index` must be less than GetFaceSize().
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ByteString GetFaceName(size_t index) const;
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bool HasInstalledFont(ByteStringView name) const;
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bool HasLocalizedFont(ByteStringView name) const;
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#if BUILDFLAG(IS_WIN)
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absl::optional<ByteString> InstalledFontNameStartingWith(
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const ByteString& name) const;
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absl::optional<ByteString> LocalizedFontNameStartingWith(
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const ByteString& name) const;
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#endif // BUILDFLAG(IS_WIN)
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#ifdef PDF_ENABLE_XFA
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// `index` must be less than GetFaceSize().
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FixedUninitDataVector<uint8_t> RawBytesForIndex(size_t index);
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#endif // PDF_ENABLE_XFA
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private:
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friend class TestFontMapper;
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uint32_t GetChecksumFromTT(void* font_handle);
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ByteString GetPSNameFromTT(void* font_handle);
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ByteString MatchInstalledFonts(const ByteString& norm_name);
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RetainPtr<CFX_Face> UseInternalSubst(int base_font,
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int weight,
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int italic_angle,
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int pitch_family,
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CFX_SubstFont* subst_font);
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RetainPtr<CFX_Face> UseExternalSubst(void* font_handle,
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ByteString face_name,
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int weight,
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bool is_italic,
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int italic_angle,
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FX_Charset charset,
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CFX_SubstFont* subst_font);
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RetainPtr<CFX_Face> GetCachedTTCFace(void* font_handle,
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size_t ttc_size,
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size_t data_size);
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RetainPtr<CFX_Face> GetCachedFace(void* font_handle,
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ByteString subst_name,
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int weight,
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bool is_italic,
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size_t data_size);
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struct FaceData {
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ByteString name;
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uint32_t charset;
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};
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bool m_bListLoaded = false;
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ByteString m_LastFamily;
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std::vector<FaceData> m_FaceArray;
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std::unique_ptr<SystemFontInfoIface> m_pFontInfo;
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UnownedPtr<CFX_FontMgr> const m_pFontMgr;
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std::vector<ByteString> m_InstalledTTFonts;
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std::vector<std::pair<ByteString, ByteString>> m_LocalizedTTFonts;
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RetainPtr<CFX_Face> m_StandardFaces[kNumStandardFonts];
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RetainPtr<CFX_Face> m_GenericSansFace;
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RetainPtr<CFX_Face> m_GenericSerifFace;
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};
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#endif // CORE_FXGE_CFX_FONTMAPPER_H_
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