// 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 CORE_INCLUDE_FXGE_FX_FONT_H_
#define CORE_INCLUDE_FXGE_FX_FONT_H_
#include "../fxcrt/fx_ext.h"
#include "fx_dib.h"
typedef struct FT_FaceRec_* FXFT_Face;
typedef void* FXFT_Library;
class IFX_FontEncoding;
class CFX_PathData;
class CFX_SubstFont;
class CFX_FaceCache;
class IFX_FontMapper;
class CFX_FontMapper;
class IFX_SystemFontInfo;
class CFontFileFaceInfo;
#define FXFONT_FIXED_PITCH 0x01
#define FXFONT_SERIF 0x02
#define FXFONT_SYMBOLIC 0x04
#define FXFONT_SCRIPT 0x08
#define FXFONT_ITALIC 0x40
#define FXFONT_BOLD 0x40000
#define FXFONT_USEEXTERNATTR 0x80000
#define FXFONT_CIDFONT 0x100000
#define FXFONT_ANSI_CHARSET 0
#define FXFONT_DEFAULT_CHARSET 1
#define FXFONT_SYMBOL_CHARSET 2
#define FXFONT_SHIFTJIS_CHARSET 128
#define FXFONT_HANGEUL_CHARSET 129
#define FXFONT_GB2312_CHARSET 134
#define FXFONT_CHINESEBIG5_CHARSET 136
#define FXFONT_THAI_CHARSET 222
#define FXFONT_EASTEUROPE_CHARSET 238
#define FXFONT_RUSSIAN_CHARSET 204
#define FXFONT_GREEK_CHARSET 161
#define FXFONT_TURKISH_CHARSET 162
#define FXFONT_HEBREW_CHARSET 177
#define FXFONT_ARABIC_CHARSET 178
#define FXFONT_BALTIC_CHARSET 186
#define FXFONT_FF_FIXEDPITCH 1
#define FXFONT_FF_ROMAN (1<<4)
#define FXFONT_FF_SCRIPT (4<<4)
#define FXFONT_FW_NORMAL 400
#define FXFONT_FW_BOLD 700
class CFX_Font
{
public:
CFX_Font();
~CFX_Font();
FX_BOOL LoadSubst(const CFX_ByteString& face_name, FX_BOOL bTrueType, FX_DWORD flags,
int weight, int italic_angle, int CharsetCP, FX_BOOL bVertical = FALSE);
FX_BOOL LoadEmbedded(FX_LPCBYTE data, FX_DWORD size);
FX_BOOL LoadFile(IFX_FileRead* pFile);
FXFT_Face GetFace() const
{
return m_Face;
}
const CFX_SubstFont* GetSubstFont() const
{
return m_pSubstFont;
}
CFX_PathData* LoadGlyphPath(FX_DWORD glyph_index, int dest_width = 0);
int GetGlyphWidth(FX_DWORD glyph_index);
int GetAscent() const;
int GetDescent() const;
FX_BOOL GetGlyphBBox(FX_DWORD glyph_index, FX_RECT &bbox);
FX_BOOL IsItalic();
FX_BOOL IsBold();
FX_BOOL IsFixedWidth();
FX_BOOL IsVertical() const
{
return m_bVertical;
}
CFX_WideString GetPsName() const;
CFX_ByteString GetFamilyName() const;
CFX_ByteString GetFaceName() const;
FX_BOOL IsTTFont();
FX_BOOL GetBBox(FX_RECT &bbox);
int GetHeight();
int GetULPos();
int GetULthickness();
int GetMaxAdvanceWidth();
FXFT_Face m_Face;
CFX_SubstFont* m_pSubstFont;
FX_BOOL IsEmbedded()
{
return m_bEmbedded;
}
void AdjustMMParams(int glyph_index, int width, int weight);
FX_LPBYTE m_pFontDataAllocation;
FX_LPBYTE m_pFontData;
FX_LPBYTE m_pGsubData;
FX_DWORD m_dwSize;
CFX_BinaryBuf m_OtfFontData;
void* m_hHandle;
void* m_pPlatformFont;
void* m_pPlatformFontCollection;
void* m_pDwFont;
FX_BOOL m_bDwLoaded;
void ReleasePlatformResource();
void DeleteFace();
protected:
FX_BOOL m_bEmbedded;
FX_BOOL m_bVertical;
void* m_pOwnedStream;
};
#define ENCODING_INTERNAL 0
#define ENCODING_UNICODE 1
class IFX_FontEncoding
{
public:
virtual ~IFX_FontEncoding() {}
virtual FX_DWORD GlyphFromCharCode(FX_DWORD charcode) = 0;
virtual CFX_WideString UnicodeFromCharCode(FX_DWORD charcode) const = 0;
virtual FX_DWORD CharCodeFromUnicode(FX_WCHAR Unicode) const = 0;
};
IFX_FontEncoding* FXGE_CreateUnicodeEncoding(CFX_Font* pFont);
#define FXFONT_SUBST_MM 0x01
#define FXFONT_SUBST_GLYPHPATH 0x04
#define FXFONT_SUBST_CLEARTYPE 0x08
#define FXFONT_SUBST_TRANSFORM 0x10
#define FXFONT_SUBST_NONSYMBOL 0x20
#define FXFONT_SUBST_EXACT 0x40
#define FXFONT_SUBST_STANDARD 0x80
class CFX_SubstFont
{
public:
CFX_SubstFont();
FX_LPVOID m_ExtHandle;
CFX_ByteString m_Family;
int m_Charset;
FX_DWORD m_SubstFlags;
int m_Weight;
int m_ItalicAngle;
FX_BOOL m_bSubstOfCJK;
int m_WeightCJK;
FX_BOOL m_bItlicCJK;
};
#define FX_FONT_FLAG_SERIF 0x01
#define FX_FONT_FLAG_FIXEDPITCH 0x02
#define FX_FONT_FLAG_ITALIC 0x04
#define FX_FONT_FLAG_BOLD 0x08
#define FX_FONT_FLAG_SYMBOLIC_SYMBOL 0x10
#define FX_FONT_FLAG_SYMBOLIC_DINGBATS 0x20
#define FX_FONT_FLAG_MULTIPLEMASTER 0x40
typedef struct {
FX_LPCBYTE m_pFontData;
FX_DWORD m_dwSize;
} FoxitFonts;
class CFX_FontMgr
{
public:
CFX_FontMgr();
~CFX_FontMgr();
void InitFTLibrary();
FXFT_Face GetCachedFace(const CFX_ByteString& face_name,
int weight, FX_BOOL bItalic, FX_LPBYTE& pFontData);
FXFT_Face AddCachedFace(const CFX_ByteString& face_name,
int weight, FX_BOOL bItalic, FX_LPBYTE pData, FX_DWORD size, int face_index);
FXFT_Face GetCachedTTCFace(int ttc_size, FX_DWORD checksum,
int font_offset, FX_LPBYTE& pFontData);
FXFT_Face AddCachedTTCFace(int ttc_size, FX_DWORD checksum,
FX_LPBYTE pData, FX_DWORD size, int font_offset);
FXFT_Face GetFileFace(FX_LPCSTR filename, int face_index);
FXFT_Face GetFixedFace(FX_LPCBYTE pData, FX_DWORD size, int face_index);
void ReleaseFace(FXFT_Face face);
void SetSystemFontInfo(IFX_SystemFontInfo* pFontInfo);
FXFT_Face FindSubstFont(const CFX_ByteString& face_name, FX_BOOL bTrueType, FX_DWORD flags,
int weight, int italic_angle, int CharsetCP, CFX_SubstFont* pSubstFont);
void FreeCache();
FX_BOOL GetStandardFont(FX_LPCBYTE& pFontData, FX_DWORD& size, int index);
CFX_FontMapper* m_pBuiltinMapper;
IFX_FontMapper* m_pExtMapper;
CFX_MapByteStringToPtr m_FaceMap;
FXFT_Library m_FTLibrary;
FoxitFonts m_ExternalFonts[16];
};
class IFX_FontMapper
{
public:
virtual ~IFX_FontMapper() {}
virtual FXFT_Face FindSubstFont(const CFX_ByteString& face_name, FX_BOOL bTrueType, FX_DWORD flags,
int weight, int italic_angle, int CharsetCP, CFX_SubstFont* pSubstFont) = 0;
CFX_FontMgr* m_pFontMgr;
};
class IFX_FontEnumerator
{
public:
virtual ~IFX_FontEnumerator() { }
virtual void HitFont() = 0;
virtual void Finish() = 0;
};
class IFX_AdditionalFontEnum
{
public:
virtual ~IFX_AdditionalFontEnum() { }
virtual int CountFiles() = 0;
virtual IFX_FileStream* GetFontFile(int index) = 0;
};
class CFX_FontMapper : public IFX_FontMapper
{
public:
CFX_FontMapper();
virtual ~CFX_FontMapper();
void SetSystemFontInfo(IFX_SystemFontInfo* pFontInfo);
IFX_SystemFontInfo* GetSystemFontInfo()
{
return m_pFontInfo;
}
void AddInstalledFont(const CFX_ByteString& name, int charset);
void LoadInstalledFonts();
CFX_ByteStringArray m_InstalledTTFonts;
void SetFontEnumerator(IFX_FontEnumerator* pFontEnumerator)
{
m_pFontEnumerator = pFontEnumerator;
}
IFX_FontEnumerator* GetFontEnumerator() const
{
return m_pFontEnumerator;
}
virtual FXFT_Face FindSubstFont(const CFX_ByteString& face_name, FX_BOOL bTrueType, FX_DWORD flags,
int weight, int italic_angle, int CharsetCP, CFX_SubstFont* pSubstFont);
private:
CFX_ByteString GetPSNameFromTT(void* hFont);
CFX_ByteString MatchInstalledFonts(const CFX_ByteString& norm_name);
FXFT_Face UseInternalSubst(CFX_SubstFont* pSubstFont, int iBaseFont, int italic_angle, int weight, int picthfamily);
FX_BOOL m_bListLoaded;
FXFT_Face m_MMFaces[2];
CFX_ByteString m_LastFamily;
CFX_DWordArray m_CharsetArray;
CFX_ByteStringArray m_FaceArray;
IFX_SystemFontInfo* m_pFontInfo;
FXFT_Face m_FoxitFaces[14];
IFX_FontEnumerator* m_pFontEnumerator;
};
class IFX_SystemFontInfo
{
public:
static IFX_SystemFontInfo* CreateDefault();
virtual void Release() = 0;
virtual FX_BOOL EnumFontList(CFX_FontMapper* pMapper) = 0;
virtual void* MapFont(int weight, FX_BOOL bItalic, int charset, int pitch_family, FX_LPCSTR face, FX_BOOL& bExact) = 0;
virtual void* GetFont(FX_LPCSTR face) = 0;
virtual FX_DWORD GetFontData(void* hFont, FX_DWORD table, FX_LPBYTE buffer, FX_DWORD size) = 0;
virtual FX_BOOL GetFaceName(void* hFont, CFX_ByteString& name) = 0;
virtual FX_BOOL GetFontCharset(void* hFont, int& charset) = 0;
virtual int GetFaceIndex(void* hFont)
{
return 0;
}
virtual void DeleteFont(void* hFont) = 0;
virtual void* RetainFont(void* hFont)
{
return NULL;
}
protected:
~IFX_SystemFontInfo() { }
};
class CFX_FolderFontInfo : public IFX_SystemFontInfo
{
public:
CFX_FolderFontInfo();
virtual ~CFX_FolderFontInfo();
void AddPath(FX_BSTR path);
virtual void Release();
virtual FX_BOOL EnumFontList(CFX_FontMapper* pMapper);
virtual void* MapFont(int weight, FX_BOOL bItalic, int charset, int pitch_family, FX_LPCSTR face, FX_BOOL& bExact);
virtual void* GetFont(FX_LPCSTR face);
virtual FX_DWORD GetFontData(void* hFont, FX_DWORD table, FX_LPBYTE buffer, FX_DWORD size);
virtual void DeleteFont(void* hFont);
virtual FX_BOOL GetFaceName(void* hFont, CFX_ByteString& name);
virtual FX_BOOL GetFontCharset(void* hFont, int& charset);
protected:
CFX_MapByteStringToPtr m_FontList;
CFX_ByteStringArray m_PathList;
CFX_FontMapper* m_pMapper;
void ScanPath(CFX_ByteString& path);
void ScanFile(CFX_ByteString& path);
void ReportFace(CFX_ByteString& path, FXSYS_FILE* pFile, FX_DWORD filesize, FX_DWORD offset);
};
class CFX_CountedFaceCache
{
public:
CFX_FaceCache* m_Obj;
FX_DWORD m_nCount;
};
typedef CFX_MapPtrTemplate<FXFT_Face, CFX_CountedFaceCache*> CFX_FTCacheMap;
class CFX_FontCache
{
public:
~CFX_FontCache();
CFX_FaceCache* GetCachedFace(CFX_Font* pFont);
void ReleaseCachedFace(CFX_Font* pFont);
void FreeCache(FX_BOOL bRelease = FALSE);
private:
CFX_FTCacheMap m_FTFaceMap;
CFX_FTCacheMap m_ExtFaceMap;
};
class CFX_AutoFontCache
{
public:
CFX_AutoFontCache(CFX_FontCache* pFontCache, CFX_Font* pFont)
: m_pFontCache(pFontCache)
, m_pFont(pFont)
{
}
~CFX_AutoFontCache()
{
m_pFontCache->ReleaseCachedFace(m_pFont);
}
CFX_FontCache* m_pFontCache;
CFX_Font* m_pFont;
};
#define FX_FONTCACHE_DEFINE(pFontCache, pFont) CFX_AutoFontCache autoFontCache((pFontCache), (pFont))
class CFX_GlyphBitmap
{
public:
int m_Top;
int m_Left;
CFX_DIBitmap m_Bitmap;
};
class CFX_FaceCache
{
public:
~CFX_FaceCache();
const CFX_GlyphBitmap* LoadGlyphBitmap(CFX_Font* pFont, FX_DWORD glyph_index, FX_BOOL bFontStyle, const CFX_AffineMatrix* pMatrix,
int dest_width, int anti_alias, int& text_flags);
const CFX_PathData* LoadGlyphPath(CFX_Font* pFont, FX_DWORD glyph_index, int dest_width);
CFX_FaceCache(FXFT_Face face);
private:
FXFT_Face m_Face;
CFX_GlyphBitmap* RenderGlyph(CFX_Font* pFont, FX_DWORD glyph_index, FX_BOOL bFontStyle,
const CFX_AffineMatrix* pMatrix, int dest_width, int anti_alias);
CFX_GlyphBitmap* RenderGlyph_Nativetext(CFX_Font* pFont, FX_DWORD glyph_index,
const CFX_AffineMatrix* pMatrix, int dest_width, int anti_alias);
CFX_GlyphBitmap* LookUpGlyphBitmap(CFX_Font* pFont, const CFX_AffineMatrix* pMatrix, CFX_ByteStringC& FaceGlyphsKey,
FX_DWORD glyph_index, FX_BOOL bFontStyle, int dest_width, int anti_alias);
CFX_MapByteStringToPtr m_SizeMap;
CFX_MapPtrToPtr m_PathMap;
CFX_DIBitmap* m_pBitmap;
void* m_pPlatformGraphics;
void* m_pPlatformBitmap;
void* m_hDC;
void* m_hBitmap;
void* m_hOldBitmap;
void* m_hGdiFont;
void* m_hOldGdiFont;
void InitPlatform();
void DestroyPlatform();
};
typedef struct {
const CFX_GlyphBitmap* m_pGlyph;
int m_OriginX, m_OriginY;
FX_FLOAT m_fOriginX, m_fOriginY;
} FXTEXT_GLYPHPOS;
FX_RECT FXGE_GetGlyphsBBox(FXTEXT_GLYPHPOS* pGlyphAndPos, int nChars, int anti_alias, FX_FLOAT retinaScaleX = 1.0f, FX_FLOAT retinaScaleY = 1.0f);
FX_BOOL OutputGlyph(void* dib, int x, int y, CFX_Font* pFont, double font_size,
CFX_AffineMatrix* pMatrix, unsigned long glyph_index, unsigned long argb);
FX_BOOL OutputText(void* dib, int x, int y, CFX_Font* pFont, double font_size,
CFX_AffineMatrix* pText_matrix, unsigned short const* text, unsigned long argb);
class IFX_GSUBTable
{
public:
virtual void Release() = 0;
virtual FX_BOOL GetVerticalGlyph(FX_DWORD glyphnum, FX_DWORD* vglyphnum) = 0;
protected:
~IFX_GSUBTable() { }
};
IFX_GSUBTable* FXGE_CreateGSUBTable(CFX_Font* pFont);
#endif // CORE_INCLUDE_FXGE_FX_FONT_H_