1 // Copyright 2014 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #ifndef _FX_FONT 8 #define _FX_FONT 9 class IFX_Font; 10 class IFX_FontMgr; 11 #define FX_FONTSTYLE_Normal 0x00 12 #define FX_FONTSTYLE_FixedPitch 0x01 13 #define FX_FONTSTYLE_Serif 0x02 14 #define FX_FONTSTYLE_Symbolic 0x04 15 #define FX_FONTSTYLE_Script 0x08 16 #define FX_FONTSTYLE_Italic 0x40 17 #define FX_FONTSTYLE_Bold 0x40000 18 #define FX_FONTSTYLE_BoldItalic (FX_FONTSTYLE_Bold | FX_FONTSTYLE_Italic) 19 #define FX_FONTSTYLE_ExactMatch 0x80000000 20 #define FX_FONTDECORATION_Underline 0x00000001 21 #define FX_FONTDECORATION_Strikeout 0x00000002 22 #define FX_FONTDECORATION_Overline 0x00000004 23 #define FX_FONTDECORATION_Emphasis 0x00000008 24 #define FX_FONTDECORATION_Superscript 0x00000010 25 #define FX_FONTDECORATION_Subscript 0x00000020 26 #define FX_FONTDECORATION_SmallCapital 0x00000040 27 #define FX_FONTDECORATION_Capital 0x00000080 28 #define FX_FONTDECORATION_Lowercase 0x000000C0 29 #define FX_FONTDECORATION_Raised 0x00000100 30 #define FX_FONTDECORATION_Sunken 0x00000200 31 #define FX_FONTDECORATION_Shadow 0x00000400 32 #define FX_FONTDECORATION_BoundingShape 0x20000000 33 #define FX_FONTDECORATION_Hide 0x40000000 34 #define FX_FONTDECORATION_StrokeFill 0x80000000 35 #define FX_BOUNDINGSHAPE_None 0 36 #define FX_BOUNDINGSHAPE_Circle 1 37 #define FX_BOUNDINGSHAPE_Square 2 38 #define FX_BOUNDINGSHAPE_Triangle 3 39 #define FX_BOUNDINGSHAPE_Diamond 4 40 41 class IFX_FontProvider { 42 public: 43 virtual ~IFX_FontProvider() {} 44 virtual FX_BOOL GetCharWidth(IFX_Font* pFont, 45 FX_WCHAR wUnicode, 46 int32_t& iWidth, 47 FX_BOOL bCharCode = FALSE) = 0; 48 }; 49 50 class IFX_Font { 51 public: 52 static IFX_Font* LoadFont(const FX_WCHAR* pszFontFamily, 53 FX_DWORD dwFontStyles, 54 FX_WORD wCodePage, 55 IFX_FontMgr* pFontMgr); 56 static IFX_Font* LoadFont(const uint8_t* pBuffer, 57 int32_t iLength, 58 IFX_FontMgr* pFontMgr); 59 static IFX_Font* LoadFont(const FX_WCHAR* pszFileName, IFX_FontMgr* pFontMgr); 60 static IFX_Font* LoadFont(IFX_Stream* pFontStream, 61 IFX_FontMgr* pFontMgr, 62 FX_BOOL bSaveStream = FALSE); 63 static IFX_Font* LoadFont(CFX_Font* pExtFont, 64 IFX_FontMgr* pFontMgr, 65 FX_BOOL bTakeOver = FALSE); 66 virtual ~IFX_Font() {} 67 virtual void Release() = 0; 68 virtual IFX_Font* Retain() = 0; 69 virtual IFX_Font* Derive(FX_DWORD dwFontStyles, FX_WORD wCodePage = 0) = 0; 70 virtual void GetFamilyName(CFX_WideString& wsFamily) const = 0; 71 virtual void GetPsName(CFX_WideString& wsName) const = 0; 72 virtual FX_DWORD GetFontStyles() const = 0; 73 virtual uint8_t GetCharSet() const = 0; 74 virtual FX_BOOL GetCharWidth(FX_WCHAR wUnicode, 75 int32_t& iWidth, 76 FX_BOOL bCharCode = FALSE) = 0; 77 virtual int32_t GetGlyphIndex(FX_WCHAR wUnicode, 78 FX_BOOL bCharCode = FALSE) = 0; 79 virtual int32_t GetAscent() const = 0; 80 virtual int32_t GetDescent() const = 0; 81 virtual FX_BOOL GetCharBBox(FX_WCHAR wUnicode, 82 CFX_Rect& bbox, 83 FX_BOOL bCharCode = FALSE) = 0; 84 virtual FX_BOOL GetBBox(CFX_Rect& bbox) = 0; 85 virtual int32_t GetItalicAngle() const = 0; 86 virtual void Reset() = 0; 87 virtual IFX_Font* GetSubstFont(int32_t iGlyphIndex) const = 0; 88 virtual void* GetDevFont() const = 0; 89 virtual void SetFontProvider(IFX_FontProvider* pProvider) = 0; 90 #if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ 91 virtual void SetLogicalFontStyle(FX_DWORD dwLogFontStyle) = 0; 92 #endif 93 }; 94 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ 95 typedef struct _FX_FONTMATCHPARAMS { 96 const FX_WCHAR* pwsFamily; 97 FX_DWORD dwFontStyles; 98 FX_DWORD dwUSB; 99 FX_DWORD dwMatchFlags; 100 FX_WCHAR wUnicode; 101 FX_WORD wCodePage; 102 } FX_FONTMATCHPARAMS, *FX_LPFONTMATCHPARAMS; 103 typedef FX_FONTMATCHPARAMS const* FX_LPCFONTMATCHPARAMS; 104 typedef struct _FX_FONTSIGNATURE : public CFX_Target { 105 FX_DWORD fsUsb[4]; 106 FX_DWORD fsCsb[2]; 107 } FX_FONTSIGNATURE; 108 typedef struct _FX_FONTDESCRIPTOR : public CFX_Target { 109 FX_WCHAR wsFontFace[32]; 110 FX_DWORD dwFontStyles; 111 uint8_t uCharSet; 112 FX_FONTSIGNATURE FontSignature; 113 } FX_FONTDESCRIPTOR, *FX_LPFONTDESCRIPTOR; 114 typedef FX_FONTDESCRIPTOR const* FX_LPCFONTDESCRIPTOR; 115 typedef CFX_MassArrayTemplate<FX_FONTDESCRIPTOR> CFX_FontDescriptors; 116 inline FX_BOOL operator==(const FX_FONTDESCRIPTOR& left, 117 const FX_FONTDESCRIPTOR& right) { 118 return left.uCharSet == right.uCharSet && 119 left.dwFontStyles == right.dwFontStyles && 120 FXSYS_wcscmp(left.wsFontFace, right.wsFontFace) == 0 && 121 FXSYS_memcmp(&left.FontSignature, &right.FontSignature, 122 sizeof(FX_FONTSIGNATURE)) == 0; 123 } 124 #define FX_FONTMATCHPARA_MacthStyle 0x01 125 #define FX_FONTMATCHPARA_MacthFamily 0x02 126 #define FX_FONTMATCHPARA_MacthUnicode 0x04 127 typedef void (*FX_LPEnumAllFonts)(CFX_FontDescriptors& fonts, 128 void* pUserData, 129 const FX_WCHAR* pwsFaceName, 130 FX_WCHAR wUnicode); 131 FX_LPEnumAllFonts FX_GetDefFontEnumerator(); 132 typedef FX_LPCFONTDESCRIPTOR (*FX_LPMatchFont)(FX_LPFONTMATCHPARAMS pParams, 133 const CFX_FontDescriptors& fonts, 134 void* pUserData); 135 FX_LPMatchFont FX_GetDefFontMatchor(); 136 class IFX_FontMgr { 137 public: 138 static IFX_FontMgr* Create(FX_LPEnumAllFonts pEnumerator, 139 FX_LPMatchFont pMatcher = NULL, 140 void* pUserData = NULL); 141 virtual ~IFX_FontMgr() {} 142 virtual void Release() = 0; 143 virtual IFX_Font* GetDefFontByCodePage( 144 FX_WORD wCodePage, 145 FX_DWORD dwFontStyles, 146 const FX_WCHAR* pszFontFamily = NULL) = 0; 147 virtual IFX_Font* GetDefFontByCharset( 148 uint8_t nCharset, 149 FX_DWORD dwFontStyles, 150 const FX_WCHAR* pszFontFamily = NULL) = 0; 151 virtual IFX_Font* GetDefFontByUnicode( 152 FX_WCHAR wUnicode, 153 FX_DWORD dwFontStyles, 154 const FX_WCHAR* pszFontFamily = NULL) = 0; 155 virtual IFX_Font* GetDefFontByLanguage( 156 FX_WORD wLanguage, 157 FX_DWORD dwFontStyles, 158 const FX_WCHAR* pszFontFamily = NULL) = 0; 159 virtual IFX_Font* LoadFont(const FX_WCHAR* pszFontFamily, 160 FX_DWORD dwFontStyles, 161 FX_WORD wCodePage = 0xFFFF) = 0; 162 virtual IFX_Font* LoadFont(const uint8_t* pBuffer, int32_t iLength) = 0; 163 virtual IFX_Font* LoadFont(const FX_WCHAR* pszFileName) = 0; 164 virtual IFX_Font* LoadFont(IFX_Stream* pFontStream, 165 const FX_WCHAR* pszFontAlias = NULL, 166 FX_DWORD dwFontStyles = 0, 167 FX_WORD wCodePage = 0, 168 FX_BOOL bSaveStream = FALSE) = 0; 169 virtual IFX_Font* LoadFont(IFX_Font* pSrcFont, 170 FX_DWORD dwFontStyles, 171 FX_WORD wCodePage = 0xFFFF) = 0; 172 virtual void ClearFontCache() = 0; 173 virtual void RemoveFont(IFX_Font* pFont) = 0; 174 }; 175 #else 176 class IFX_FontMgrDelegate { 177 public: 178 virtual ~IFX_FontMgrDelegate() {} 179 virtual IFX_Font* GetDefFontByCodePage( 180 IFX_FontMgr* pFontMgr, 181 FX_WORD wCodePage, 182 FX_DWORD dwFontStyles, 183 const FX_WCHAR* pszFontFamily = NULL) = 0; 184 virtual IFX_Font* GetDefFontByCharset( 185 IFX_FontMgr* pFontMgr, 186 uint8_t nCharset, 187 FX_DWORD dwFontStyles, 188 const FX_WCHAR* pszFontFamily = NULL) = 0; 189 virtual IFX_Font* GetDefFontByUnicode( 190 IFX_FontMgr* pFontMgr, 191 FX_WCHAR wUnicode, 192 FX_DWORD dwFontStyles, 193 const FX_WCHAR* pszFontFamily = NULL) = 0; 194 virtual IFX_Font* GetDefFontByLanguage( 195 IFX_FontMgr* pFontMgr, 196 FX_WORD wLanguage, 197 FX_DWORD dwFontStyles, 198 const FX_WCHAR* pszFontFamily = NULL) = 0; 199 }; 200 class IFX_FontSourceEnum { 201 public: 202 virtual ~IFX_FontSourceEnum() {} 203 virtual void Release() = 0; 204 virtual FX_POSITION GetStartPosition(void* pUserData = NULL) = 0; 205 virtual IFX_FileAccess* GetNext(FX_POSITION& pos, void* pUserData = NULL) = 0; 206 }; 207 IFX_FontSourceEnum* FX_CreateDefaultFontSourceEnum(); 208 class IFX_FontMgr { 209 public: 210 static IFX_FontMgr* Create(IFX_FontSourceEnum* pFontEnum, 211 IFX_FontMgrDelegate* pDelegate = NULL, 212 void* pUserData = NULL); 213 virtual ~IFX_FontMgr() {} 214 virtual void Release() = 0; 215 virtual IFX_Font* GetDefFontByCodePage( 216 FX_WORD wCodePage, 217 FX_DWORD dwFontStyles, 218 const FX_WCHAR* pszFontFamily = NULL) = 0; 219 virtual IFX_Font* GetDefFontByCharset( 220 uint8_t nCharset, 221 FX_DWORD dwFontStyles, 222 const FX_WCHAR* pszFontFamily = NULL) = 0; 223 virtual IFX_Font* GetDefFontByUnicode( 224 FX_WCHAR wUnicode, 225 FX_DWORD dwFontStyles, 226 const FX_WCHAR* pszFontFamily = NULL) = 0; 227 virtual IFX_Font* GetDefFontByLanguage( 228 FX_WORD wLanguage, 229 FX_DWORD dwFontStyles, 230 const FX_WCHAR* pszFontFamily = NULL) = 0; 231 virtual IFX_Font* GetFontByCodePage(FX_WORD wCodePage, 232 FX_DWORD dwFontStyles, 233 const FX_WCHAR* pszFontFamily = NULL) = 0; 234 inline IFX_Font* LoadFont(const FX_WCHAR* pszFontFamily, 235 FX_DWORD dwFontStyles, 236 FX_WORD wCodePage) { 237 return GetFontByCodePage(wCodePage, dwFontStyles, pszFontFamily); 238 } 239 virtual IFX_Font* GetFontByCharset(uint8_t nCharset, 240 FX_DWORD dwFontStyles, 241 const FX_WCHAR* pszFontFamily = NULL) = 0; 242 virtual IFX_Font* GetFontByUnicode(FX_WCHAR wUnicode, 243 FX_DWORD dwFontStyles, 244 const FX_WCHAR* pszFontFamily = NULL) = 0; 245 virtual IFX_Font* GetFontByLanguage(FX_WORD wLanguage, 246 FX_DWORD dwFontStyles, 247 const FX_WCHAR* pszFontFamily = NULL) = 0; 248 virtual IFX_Font* LoadFont(const uint8_t* pBuffer, 249 int32_t iLength, 250 int32_t iFaceIndex, 251 int32_t* pFaceCount = NULL) = 0; 252 virtual IFX_Font* LoadFont(const FX_WCHAR* pszFileName, 253 int32_t iFaceIndex, 254 int32_t* pFaceCount = NULL) = 0; 255 virtual IFX_Font* LoadFont(IFX_Stream* pFontStream, 256 int32_t iFaceIndex, 257 int32_t* pFaceCount = NULL, 258 FX_BOOL bSaveStream = FALSE) = 0; 259 260 virtual void ClearFontCache() = 0; 261 virtual void RemoveFont(IFX_Font* pFont) = 0; 262 }; 263 #endif 264 #endif 265
