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// Copyright 2014 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 XFA_FGAS_FONT_CFGAS_FONTMGR_H_
#define XFA_FGAS_FONT_CFGAS_FONTMGR_H_
#include <deque>
#include <map>
#include <memory>
#include <set>
#include <utility>
#include <vector>
#include "core/fxcrt/cfx_seekablestreamproxy.h"
#include "core/fxcrt/fx_extension.h"
#include "core/fxcrt/observable.h"
#include "core/fxcrt/retain_ptr.h"
#include "core/fxge/fx_freetype.h"
#include "core/fxge/systemfontinfo_iface.h"
#include "xfa/fgas/font/cfgas_pdffontmgr.h"
class CFGAS_GEFont;
class CFX_FontMapper;
class CFX_FontSourceEnum_File;
#if _FX_PLATFORM_ == _FX_PLATFORM_WINDOWS_
struct FX_FONTMATCHPARAMS {
const wchar_t* pwsFamily;
uint32_t dwFontStyles;
uint32_t dwUSB;
bool matchParagraphStyle;
wchar_t wUnicode;
uint16_t wCodePage;
};
struct FX_FONTSIGNATURE {
uint32_t fsUsb[4];
uint32_t fsCsb[2];
};
inline bool operator==(const FX_FONTSIGNATURE& left,
const FX_FONTSIGNATURE& right) {
return left.fsUsb[0] == right.fsUsb[0] && left.fsUsb[1] == right.fsUsb[1] &&
left.fsUsb[2] == right.fsUsb[2] && left.fsUsb[3] == right.fsUsb[3] &&
left.fsCsb[0] == right.fsCsb[0] && left.fsCsb[1] == right.fsCsb[1];
}
struct FX_FONTDESCRIPTOR {
wchar_t wsFontFace[32];
uint32_t dwFontStyles;
uint8_t uCharSet;
FX_FONTSIGNATURE FontSignature;
};
inline bool operator==(const FX_FONTDESCRIPTOR& left,
const FX_FONTDESCRIPTOR& right) {
return left.uCharSet == right.uCharSet &&
left.dwFontStyles == right.dwFontStyles &&
left.FontSignature == right.FontSignature &&
wcscmp(left.wsFontFace, right.wsFontFace) == 0;
}
#else // _FX_PLATFORM_ == _FX_PLATFORM_WINDOWS_
class CFX_FontDescriptor {
public:
CFX_FontDescriptor();
~CFX_FontDescriptor();
int32_t m_nFaceIndex;
WideString m_wsFaceName;
std::vector<WideString> m_wsFamilyNames;
uint32_t m_dwFontStyles;
uint32_t m_dwUsb[4];
uint32_t m_dwCsb[2];
};
class CFX_FontDescriptorInfo {
public:
CFX_FontDescriptor* pFont;
int32_t nPenalty;
bool operator>(const CFX_FontDescriptorInfo& other) const {
return nPenalty > other.nPenalty;
}
bool operator<(const CFX_FontDescriptorInfo& other) const {
return nPenalty < other.nPenalty;
}
bool operator==(const CFX_FontDescriptorInfo& other) const {
return nPenalty == other.nPenalty;
}
};
class CFX_FontSourceEnum_File {
public:
CFX_FontSourceEnum_File();
~CFX_FontSourceEnum_File();
bool HasStartPosition();
std::pair<bool, RetainPtr<IFX_SeekableStream>> GetNext();
private:
struct HandleParentPath {
HandleParentPath() = default;
HandleParentPath(const HandleParentPath& x) {
pFileHandle = x.pFileHandle;
bsParentPath = x.bsParentPath;
}
FX_FileHandle* pFileHandle;
ByteString bsParentPath;
};
ByteString GetNextFile();
WideString m_wsNext;
std::vector<HandleParentPath> m_FolderQueue;
std::vector<ByteString> m_FolderPaths;
};
#endif // _FX_PLATFORM_ == _FX_PLATFORM_WINDOWS_
class CFGAS_FontMgr : public Observable<CFGAS_FontMgr> {
public:
CFGAS_FontMgr();
~CFGAS_FontMgr();
RetainPtr<CFGAS_GEFont> GetFontByCodePage(uint16_t wCodePage,
uint32_t dwFontStyles,
const wchar_t* pszFontFamily);
RetainPtr<CFGAS_GEFont> GetFontByUnicode(wchar_t wUnicode,
uint32_t dwFontStyles,
const wchar_t* pszFontFamily);
RetainPtr<CFGAS_GEFont> LoadFont(const wchar_t* pszFontFamily,
uint32_t dwFontStyles,
uint16_t wCodePage);
void RemoveFont(const RetainPtr<CFGAS_GEFont>& pFont);
bool EnumFonts();
private:
#if _FX_PLATFORM_ == _FX_PLATFORM_WINDOWS_
const FX_FONTDESCRIPTOR* FindFont(const wchar_t* pszFontFamily,
uint32_t dwFontStyles,
bool matchParagraphStyle,
uint16_t wCodePage,
uint32_t dwUSB,
wchar_t wUnicode);
std::deque<FX_FONTDESCRIPTOR> m_FontFaces;
#else // _FX_PLATFORM_ == _FX_PLATFORM_WINDOWS_
bool EnumFontsFromFontMapper();
bool EnumFontsFromFiles();
void RegisterFace(FXFT_Face pFace, const WideString* pFaceName);
void RegisterFaces(const RetainPtr<IFX_SeekableReadStream>& pFontStream,
const WideString* pFaceName);
void GetNames(const uint8_t* name_table, std::vector<WideString>& Names);
std::vector<uint16_t> GetCharsets(FXFT_Face pFace) const;
void GetUSBCSB(FXFT_Face pFace, uint32_t* USB, uint32_t* CSB);
uint32_t GetFlags(FXFT_Face pFace);
bool VerifyUnicode(CFX_FontDescriptor* pDesc, wchar_t wcUnicode);
int32_t IsPartName(const WideString& Name1, const WideString& Name2);
void MatchFonts(std::vector<CFX_FontDescriptorInfo>* MatchedFonts,
uint16_t wCodePage,
uint32_t dwFontStyles,
const WideString& FontName,
wchar_t wcUnicode = 0xFFFE);
int32_t CalcPenalty(CFX_FontDescriptor* pInstalled,
uint16_t wCodePage,
uint32_t dwFontStyles,
const WideString& FontName,
wchar_t wcUnicode = 0xFFFE);
RetainPtr<CFGAS_GEFont> LoadFont(const WideString& wsFaceName,
int32_t iFaceIndex,
int32_t* pFaceCount);
FXFT_Face LoadFace(const RetainPtr<IFX_SeekableReadStream>& pFontStream,
int32_t iFaceIndex);
RetainPtr<IFX_SeekableReadStream> CreateFontStream(
CFX_FontMapper* pFontMapper,
SystemFontInfoIface* pSystemFontInfo,
uint32_t index);
RetainPtr<IFX_SeekableReadStream> CreateFontStream(
const ByteString& bsFaceName);
std::unique_ptr<CFX_FontSourceEnum_File> m_pFontSource;
std::vector<std::unique_ptr<CFX_FontDescriptor>> m_InstalledFonts;
std::map<uint32_t, std::unique_ptr<std::vector<CFX_FontDescriptorInfo>>>
m_Hash2CandidateList;
std::map<RetainPtr<CFGAS_GEFont>, RetainPtr<IFX_SeekableReadStream>>
m_IFXFont2FileRead;
std::set<wchar_t> m_FailedUnicodesSet;
#endif // _FX_PLATFORM_ == _FX_PLATFORM_WINDOWS_
bool VerifyUnicode(const RetainPtr<CFGAS_GEFont>& pFont, wchar_t wcUnicode);
std::map<uint32_t, std::vector<RetainPtr<CFGAS_GEFont>>> m_Hash2Fonts;
};
#endif // XFA_FGAS_FONT_CFGAS_FONTMGR_H_
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