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