Initial commit.

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