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Diffstat (limited to 'core/include/fxge/fx_font.h')
| -rw-r--r-- | core/include/fxge/fx_font.h | 428 |
1 files changed, 428 insertions, 0 deletions
diff --git a/core/include/fxge/fx_font.h b/core/include/fxge/fx_font.h new file mode 100644 index 0000000000..abfa9b8b5d --- /dev/null +++ b/core/include/fxge/fx_font.h @@ -0,0 +1,428 @@ +// 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 _FX_FONT_H_
+#define _FX_FONT_H_
+#ifndef _FXCRT_EXTENSION_
+#include "../../include/fxcrt/fx_ext.h"
+#endif
+#ifndef _FX_DIB_H_
+#include "fx_dib.h"
+#endif
+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_Object
+{
+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 CFX_Object
+{
+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_Object
+{
+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_Object
+{
+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 CFX_Object
+{
+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 void HitFont() = 0;
+
+ virtual void Finish() = 0;
+};
+class IFX_AdditionalFontEnum
+{
+public:
+ 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 CFX_Object
+{
+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;
+ }
+};
+class CFX_FolderFontInfo : public IFX_SystemFontInfo
+{
+public:
+ CFX_FolderFontInfo();
+ ~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_Object
+{
+public:
+ CFX_FaceCache* m_Obj;
+ FX_DWORD m_nCount;
+};
+typedef CFX_MapPtrTemplate<FXFT_Face, CFX_CountedFaceCache*> CFX_FTCacheMap;
+class CFX_FontCache : public CFX_Object
+{
+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 CFX_Object
+{
+public:
+ int m_Top;
+ int m_Left;
+ CFX_DIBitmap m_Bitmap;
+};
+class CFX_FaceCache : public CFX_Object
+{
+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;
+};
+IFX_GSUBTable* FXGE_CreateGSUBTable(CFX_Font* pFont);
+#endif
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