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/*
 * $RCSId: xc/lib/fontconfig/fontconfig/fontconfig.h,v 1.30 2002/09/26 00:17:27 keithp Exp $
 *
 * Copyright  2001 Keith Packard
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided that
 * the above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation, and that the name of Keith Packard not be used in
 * advertising or publicity pertaining to distribution of the software without
 * specific, written prior permission.  Keith Packard makes no
 * representations about the suitability of this software for any purpose.  It
 * is provided "as is" without express or implied warranty.
 *
 * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
 * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef _FONTCONFIG_H_
#define _FONTCONFIG_H_

#include <stdarg.h>

typedef unsigned char	FcChar8;
typedef unsigned short	FcChar16;
typedef unsigned int	FcChar32;
typedef int		FcBool;

/*
 * Current Fontconfig version number.  This same number
 * must appear in the fontconfig configure.in file. Yes,
 * it'a a pain to synchronize version numbers like this.
 */

#define FC_MAJOR	2
#define FC_MINOR	2
#define FC_REVISION	2

#define FC_VERSION	((FC_MAJOR * 10000) + (FC_MINOR * 100) + (FC_REVISION))

/*
 * Current font cache file format version
 * This is appended to the cache files so that multiple
 * versions of the library will peacefully coexist
 *
 * Change this value whenever the disk format for the cache file
 * changes in any non-compatible way.  Try to avoid such changes as
 * it means multiple copies of the font information.
 */

#define FC_CACHE_VERSION    "1"

#define FcTrue		1
#define FcFalse		0

#define FC_FAMILY	    "family"		/* String */
#define FC_STYLE	    "style"		/* String */
#define FC_SLANT	    "slant"		/* Int */
#define FC_WEIGHT	    "weight"		/* Int */
#define FC_SIZE		    "size"		/* Double */
#define FC_ASPECT	    "aspect"		/* Double */
#define FC_PIXEL_SIZE	    "pixelsize"		/* Double */
#define FC_SPACING	    "spacing"		/* Int */
#define FC_FOUNDRY	    "foundry"		/* String */
#define FC_ANTIALIAS	    "antialias"		/* Bool (depends) */
#define FC_HINTING	    "hinting"		/* Bool (true) */
#define FC_VERTICAL_LAYOUT  "verticallayout"	/* Bool (false) */
#define FC_AUTOHINT	    "autohint"		/* Bool (false) */
#define FC_GLOBAL_ADVANCE   "globaladvance"	/* Bool (true) */
#define FC_WIDTH	    "width"		/* Int */
#define FC_FILE		    "file"		/* String */
#define FC_INDEX	    "index"		/* Int */
#define FC_FT_FACE	    "ftface"		/* FT_Face */
#define FC_RASTERIZER	    "rasterizer"	/* String */
#define FC_OUTLINE	    "outline"		/* Bool */
#define FC_SCALABLE	    "scalable"		/* Bool */
#define FC_SCALE	    "scale"		/* double */
#define FC_DPI		    "dpi"		/* double */
#define FC_RGBA		    "rgba"		/* Int */
#define FC_MINSPACE	    "minspace"		/* Bool use minimum line spacing */
#define FC_SOURCE	    "source"		/* String (X11, freetype) */
#define FC_CHARSET	    "charset"		/* CharSet */
#define FC_LANG		    "lang"		/* String RFC 3066 langs */
#define FC_FONTVERSION	    "fontversion"	/* Int from 'head' table */

#define FC_DIR_CACHE_FILE	    "fonts.cache-"FC_CACHE_VERSION
#define FC_USER_CACHE_FILE	    ".fonts.cache-"FC_CACHE_VERSION

/* Adjust outline rasterizer */
#define FC_CHAR_WIDTH	    "charwidth"	/* Int */
#define FC_CHAR_HEIGHT	    "charheight"/* Int */
#define FC_MATRIX	    "matrix"    /* FcMatrix */

#define FC_WEIGHT_THIN		    0
#define FC_WEIGHT_EXTRALIGHT	    40
#define FC_WEIGHT_ULTRALIGHT	    FC_WEIGHT_EXTRALIGHT
#define FC_WEIGHT_LIGHT		    50
#define FC_WEIGHT_REGULAR	    80
#define FC_WEIGHT_NORMAL	    FC_WEIGHT_REGULAR
#define FC_WEIGHT_MEDIUM	    100
#define FC_WEIGHT_DEMIBOLD	    180
#define FC_WEIGHT_SEMIBOLD	    FC_WEIGHT_DEMIBOLD
#define FC_WEIGHT_BOLD		    200
#define FC_WEIGHT_EXTRABOLD	    205
#define FC_WEIGHT_ULTRABOLD	    FC_WEIGHT_EXTRABOLD
#define FC_WEIGHT_BLACK		    210
#define FC_WEIGHT_HEAVY		    FC_WEIGHT_BLACK

#define FC_SLANT_ROMAN		    0
#define FC_SLANT_ITALIC		    100
#define FC_SLANT_OBLIQUE	    110

#define FC_WIDTH_ULTRACONDENSED	    50
#define FC_WIDTH_EXTRACONDENSED	    63
#define FC_WIDTH_CONDENSED	    75
#define FC_WIDTH_SEMICONDENSED	    87
#define FC_WIDTH_NORMAL		    100
#define FC_WIDTH_SEMIEXPANDED	    113
#define FC_WIDTH_EXPANDED	    125
#define FC_WIDTH_EXTRAEXPANDED	    150
#define FC_WIDTH_ULTRAEXPANDED	    200

#define FC_PROPORTIONAL		    0
#define FC_MONO			    100
#define FC_CHARCELL		    110

/* sub-pixel order */
#define FC_RGBA_UNKNOWN	    0
#define FC_RGBA_RGB	    1
#define FC_RGBA_BGR	    2
#define FC_RGBA_VRGB	    3
#define FC_RGBA_VBGR	    4
#define FC_RGBA_NONE	    5

typedef enum _FcType {
    FcTypeVoid, 
    FcTypeInteger, 
    FcTypeDouble, 
    FcTypeString, 
    FcTypeBool,
    FcTypeMatrix,
    FcTypeCharSet,
    FcTypeFTFace,
    FcTypeLangSet
} FcType;

typedef struct _FcMatrix {
    double xx, xy, yx, yy;
} FcMatrix;

#define FcMatrixInit(m)	((m)->xx = (m)->yy = 1, \
			 (m)->xy = (m)->yx = 0)

/*
 * A data structure to represent the available glyphs in a font.
 * This is represented as a sparse boolean btree.
 */

typedef struct _FcCharSet FcCharSet;

typedef struct _FcObjectType {
    const char	*object;
    FcType	type;
} FcObjectType;

typedef struct _FcConstant {
    const FcChar8  *name;
    const char	*object;
    int		value;
} FcConstant;

typedef enum _FcResult {
    FcResultMatch, FcResultNoMatch, FcResultTypeMismatch, FcResultNoId
} FcResult;

typedef struct _FcPattern   FcPattern;

typedef struct _FcLangSet   FcLangSet;

typedef struct _FcValue {
    FcType	type;
    union {
	const FcChar8	*s;
	int		i;
	FcBool		b;
	double		d;
	const FcMatrix	*m;
	const FcCharSet	*c;
	void		*f;
	const FcPattern	*p;
	const FcLangSet	*l;
    } u;
} FcValue;

typedef struct _FcFontSet {
    int		nfont;
    int		sfont;
    FcPattern	**fonts;
} FcFontSet;

typedef struct _FcObjectSet {
    int		nobject;
    int		sobject;
    const char	**objects;
} FcObjectSet;
    
typedef enum _FcMatchKind {
    FcMatchPattern, FcMatchFont
} FcMatchKind;

typedef enum _FcLangResult {
    FcLangEqual, FcLangDifferentCountry, FcLangDifferentLang
} FcLangResult;

typedef enum _FcSetName {
    FcSetSystem = 0,
    FcSetApplication = 1
} FcSetName;

typedef struct _FcAtomic FcAtomic;

#if defined(__cplusplus) || defined(c_plusplus) /* for C++ V2.0 */
#define _FCFUNCPROTOBEGIN extern "C" {	/* do not leave open across includes */
#define _FCFUNCPROTOEND }
#else
#define _FCFUNCPROTOBEGIN
#define _FCFUNCPROTOEND
#endif

typedef enum { FcEndianBig, FcEndianLittle } FcEndian;

typedef struct _FcConfig    FcConfig;

typedef struct _FcGlobalCache	FcFileCache;

typedef struct _FcBlanks    FcBlanks;

typedef struct _FcStrList   FcStrList;

typedef struct _FcStrSet    FcStrSet;

_FCFUNCPROTOBEGIN

FcBool
FcDirCacheValid (const FcChar8 *cache_file);

/* fcblanks.c */
FcBlanks *
FcBlanksCreate (void);

void
FcBlanksDestroy (FcBlanks *b);

FcBool
FcBlanksAdd (FcBlanks *b, FcChar32 ucs4);

FcBool
FcBlanksIsMember (FcBlanks *b, FcChar32 ucs4);

/* fccfg.c */
FcChar8 *
FcConfigHome (void);

FcBool
FcConfigEnableHome (FcBool enable);

FcChar8 *
FcConfigFilename (const FcChar8 *url);
    
FcConfig *
FcConfigCreate (void);

void
FcConfigDestroy (FcConfig *config);

FcBool
FcConfigSetCurrent (FcConfig *config);

FcConfig *
FcConfigGetCurrent (void);

FcBool
FcConfigUptoDate (FcConfig *config);
    
FcBool
FcConfigBuildFonts (FcConfig *config);

FcStrList *
FcConfigGetFontDirs (FcConfig   *config);

FcStrList *
FcConfigGetConfigDirs (FcConfig   *config);

FcStrList *
FcConfigGetConfigFiles (FcConfig    *config);

FcChar8 *
FcConfigGetCache (FcConfig  *config);

FcBlanks *
FcConfigGetBlanks (FcConfig *config);

int
FcConfigGetRescanInverval (FcConfig *config);

FcBool
FcConfigSetRescanInverval (FcConfig *config, int rescanInterval);

FcFontSet *
FcConfigGetFonts (FcConfig	*config,
		  FcSetName	set);

FcBool
FcConfigAppFontAddFile (FcConfig    *config,
			const FcChar8  *file);

FcBool
FcConfigAppFontAddDir (FcConfig	    *config,
		       const FcChar8   *dir);

void
FcConfigAppFontClear (FcConfig	    *config);

FcBool
FcConfigSubstituteWithPat (FcConfig	*config,
			   FcPattern	*p,
			   FcPattern	*p_pat,
			   FcMatchKind	kind);

FcBool
FcConfigSubstitute (FcConfig	*config,
		    FcPattern	*p,
		    FcMatchKind	kind);

/* fccharset.c */
FcCharSet *
FcCharSetCreate (void);

void
FcCharSetDestroy (FcCharSet *fcs);

FcBool
FcCharSetAddChar (FcCharSet *fcs, FcChar32 ucs4);

FcCharSet *
FcCharSetCopy (FcCharSet *src);

FcBool
FcCharSetEqual (const FcCharSet *a, const FcCharSet *b);

FcCharSet *
FcCharSetIntersect (const FcCharSet *a, const FcCharSet *b);

FcCharSet *
FcCharSetUnion (const FcCharSet *a, const FcCharSet *b);

FcCharSet *
FcCharSetSubtract (const FcCharSet *a, const FcCharSet *b);

FcBool
FcCharSetHasChar (const FcCharSet *fcs, FcChar32 ucs4);

FcChar32
FcCharSetCount (const FcCharSet *a);

FcChar32
FcCharSetIntersectCount (const FcCharSet *a, const FcCharSet *b);

FcChar32
FcCharSetSubtractCount (const FcCharSet *a, const FcCharSet *b);

FcBool
FcCharSetIsSubset (const FcCharSet *a, const FcCharSet *b);

#define FC_CHARSET_MAP_SIZE (256/32)
#define FC_CHARSET_DONE	((FcChar32) -1)

FcChar32
FcCharSetFirstPage (const FcCharSet *a, 
		    FcChar32	    map[FC_CHARSET_MAP_SIZE],
		    FcChar32	    *next);

FcChar32
FcCharSetNextPage (const FcCharSet  *a, 
		   FcChar32	    map[FC_CHARSET_MAP_SIZE],
		   FcChar32	    *next);


/* fcdbg.c */
void
FcValuePrint (const FcValue v);

void
FcPatternPrint (const FcPattern *p);

void
FcFontSetPrint (const FcFontSet *s);

/* fcdefault.c */
void
FcDefaultSubstitute (FcPattern *pattern);

/* fcdir.c */
FcBool
FcFileScan (FcFontSet	    *set,
	    FcStrSet	    *dirs,
	    FcFileCache	    *cache,
	    FcBlanks	    *blanks,
	    const FcChar8   *file,
	    FcBool	    force);

FcBool
FcDirScan (FcFontSet	    *set,
	   FcStrSet	    *dirs,
	   FcFileCache	    *cache,
	   FcBlanks	    *blanks,
	   const FcChar8    *dir,
	   FcBool	    force);

FcBool
FcDirSave (FcFontSet *set, FcStrSet *dirs, const FcChar8 *dir);

/* fcfreetype.c */
FcPattern *
FcFreeTypeQuery (const FcChar8 *file, int id, FcBlanks *blanks, int *count);

/* fcfs.c */

FcFontSet *
FcFontSetCreate (void);

void
FcFontSetDestroy (FcFontSet *s);

FcBool
FcFontSetAdd (FcFontSet *s, FcPattern *font);

/* fcinit.c */
FcConfig *
FcInitLoadConfig (void);

FcConfig *
FcInitLoadConfigAndFonts (void);

FcBool
FcInit (void);

int
FcGetVersion (void);

FcBool
FcInitReinitialize (void);

FcBool
FcInitBringUptoDate (void);

/* fclang.c */
FcLangSet *
FcLangSetCreate (void);

void
FcLangSetDestroy (FcLangSet *ls);

FcLangSet *
FcLangSetCopy (const FcLangSet *ls);

FcBool
FcLangSetAdd (FcLangSet *ls, const FcChar8 *lang);

FcLangResult
FcLangSetHasLang (const FcLangSet *ls, const FcChar8 *lang);

FcLangResult
FcLangSetCompare (const FcLangSet *lsa, const FcLangSet *lsb);

FcBool
FcLangSetContains (const FcLangSet *lsa, const FcLangSet *lsb);

FcBool
FcLangSetEqual (const FcLangSet *lsa, const FcLangSet *lsb);

FcChar32
FcLangSetHash (const FcLangSet *ls);

/* fclist.c */
FcObjectSet *
FcObjectSetCreate (void);

FcBool
FcObjectSetAdd (FcObjectSet *os, const char *object);

void
FcObjectSetDestroy (FcObjectSet *os);

FcObjectSet *
FcObjectSetVaBuild (const char *first, va_list va);

FcObjectSet *
FcObjectSetBuild (const char *first, ...);

FcFontSet *
FcFontSetList (FcConfig	    *config,
	       FcFontSet    **sets,
	       int	    nsets,
	       FcPattern    *p,
	       FcObjectSet  *os);

FcFontSet *
FcFontList (FcConfig	*config,
	    FcPattern	*p,
	    FcObjectSet *os);

/* fcatomic.c */

FcAtomic *
FcAtomicCreate (const FcChar8   *file);

FcBool
FcAtomicLock (FcAtomic *atomic);

FcChar8 *
FcAtomicNewFile (FcAtomic *atomic);

FcChar8 *
FcAtomicOrigFile (FcAtomic *atomic);

FcBool
FcAtomicReplaceOrig (FcAtomic *atomic);

void
FcAtomicDeleteNew (FcAtomic *atomic);

void
FcAtomicUnlock (FcAtomic *atomic);

void
FcAtomicDestroy (FcAtomic *atomic);

/* fcmatch.c */
FcPattern *
FcFontSetMatch (FcConfig    *config,
		FcFontSet   **sets,
		int	    nsets,
		FcPattern   *p,
		FcResult    *result);

FcPattern *
FcFontMatch (FcConfig	*config,
	     FcPattern	*p, 
	     FcResult	*result);

FcPattern *
FcFontRenderPrepare (FcConfig	    *config,
		     FcPattern	    *pat,
		     FcPattern	    *font);

FcFontSet *
FcFontSetSort (FcConfig	    *config,
	       FcFontSet    **sets,
	       int	    nsets,
	       FcPattern    *p,
	       FcBool	    trim,
	       FcCharSet    **csp,
	       FcResult	    *result);

FcFontSet *
FcFontSort (FcConfig	 *config,
	    FcPattern    *p,
	    FcBool	 trim,
	    FcCharSet    **csp,
	    FcResult	 *result);

void
FcFontSetSortDestroy (FcFontSet *fs);

/* fcmatrix.c */
FcMatrix *
FcMatrixCopy (const FcMatrix *mat);

FcBool
FcMatrixEqual (const FcMatrix *mat1, const FcMatrix *mat2);

void
FcMatrixMultiply (FcMatrix *result, const FcMatrix *a, const FcMatrix *b);

void
FcMatrixRotate (FcMatrix *m, double c, double s);

void
FcMatrixScale (FcMatrix *m, double sx, double sy);

void
FcMatrixShear (FcMatrix *m, double sh, double sv);

/* fcname.c */

FcBool
FcNameRegisterObjectTypes (const FcObjectType *types, int ntype);

FcBool
FcNameUnregisterObjectTypes (const FcObjectType *types, int ntype);
    
const FcObjectType *
FcNameGetObjectType (const char *object);

FcBool
FcNameRegisterConstants (const FcConstant *consts, int nconsts);

FcBool
FcNameUnregisterConstants (const FcConstant *consts, int nconsts);
    
const FcConstant *
FcNameGetConstant (FcChar8 *string);

FcBool
FcNameConstant (FcChar8 *string, int *result);

FcPattern *
FcNameParse (const FcChar8 *name);

FcChar8 *
FcNameUnparse (FcPattern *pat);

/* fcpat.c */
FcPattern *
FcPatternCreate (void);

FcPattern *
FcPatternDuplicate (const FcPattern *p);

void
FcPatternReference (FcPattern *p);

void
FcValueDestroy (FcValue v);

FcBool
FcValueEqual (FcValue va, FcValue vb);

FcValue
FcValueSave (FcValue v);

void
FcPatternDestroy (FcPattern *p);

FcBool
FcPatternEqual (const FcPattern *pa, const FcPattern *pb);

FcBool
FcPatternEqualSubset (const FcPattern *pa, const FcPattern *pb, const FcObjectSet *os);

FcChar32
FcPatternHash (const FcPattern *p);

FcBool
FcPatternAdd (FcPattern *p, const char *object, FcValue value, FcBool append);
    
FcBool
FcPatternAddWeak (FcPattern *p, const char *object, FcValue value, FcBool append);
    
FcResult
FcPatternGet (const FcPattern *p, const char *object, int id, FcValue *v);
    
FcBool
FcPatternDel (FcPattern *p, const char *object);

FcBool
FcPatternAddInteger (FcPattern *p, const char *object, int i);

FcBool
FcPatternAddDouble (FcPattern *p, const char *object, double d);

FcBool
FcPatternAddString (FcPattern *p, const char *object, const FcChar8 *s);

FcBool
FcPatternAddMatrix (FcPattern *p, const char *object, const FcMatrix *s);

FcBool
FcPatternAddCharSet (FcPattern *p, const char *object, const FcCharSet *c);

FcBool
FcPatternAddBool (FcPattern *p, const char *object, FcBool b);

FcBool
FcPatternAddLangSet (FcPattern *p, const char *object, const FcLangSet *ls);

FcResult
FcPatternGetInteger (const FcPattern *p, const char *object, int n, int *i);

FcResult
FcPatternGetDouble (const FcPattern *p, const char *object, int n, double *d);

FcResult
FcPatternGetString (const FcPattern *p, const char *object, int n, FcChar8 ** s);

FcResult
FcPatternGetMatrix (const FcPattern *p, const char *object, int n, FcMatrix **s);

FcResult
FcPatternGetCharSet (const FcPattern *p, const char *object, int n, FcCharSet **c);

FcResult
FcPatternGetBool (const FcPattern *p, const char *object, int n, FcBool *b);

FcResult
FcPatternGetLangSet (const FcPattern *p, const char *object, int n, FcLangSet **ls);

FcPattern *
FcPatternVaBuild (FcPattern *orig, va_list va);
    
FcPattern *
FcPatternBuild (FcPattern *orig, ...);

/* fcstr.c */

FcChar8 *
FcStrCopy (const FcChar8 *s);

FcChar8 *
FcStrCopyFilename (const FcChar8 *s);
    
#define FcIsUpper(c)	(('A' <= (c) && (c) <= 'Z'))
#define FcIsLower(c)	(('a' <= (c) && (c) <= 'z'))
#define FcToLower(c)	(FcIsUpper(c) ? (c) - 'A' + 'a' : (c))

int
FcStrCmpIgnoreCase (const FcChar8 *s1, const FcChar8 *s2);

int
FcStrCmp (const FcChar8 *s1, const FcChar8 *s2);

int
FcUtf8ToUcs4 (const FcChar8 *src_orig,
	      FcChar32	    *dst,
	      int	    len);

FcBool
FcUtf8Len (const FcChar8    *string,
	   int		    len,
	   int		    *nchar,
	   int		    *wchar);

#define FC_UTF8_MAX_LEN	6

int
FcUcs4ToUtf8 (FcChar32	ucs4,
	      FcChar8	dest[FC_UTF8_MAX_LEN]);

int
FcUtf16ToUcs4 (const FcChar8	*src_orig,
	       FcEndian		endian,
	       FcChar32		*dst,
	       int		len);	    /* in bytes */

FcBool
FcUtf16Len (const FcChar8   *string,
	    FcEndian	    endian,
	    int		    len,	    /* in bytes */
	    int		    *nchar,
	    int		    *wchar);

FcChar8 *
FcStrDirname (const FcChar8 *file);

FcChar8 *
FcStrBasename (const FcChar8 *file);

FcStrSet *
FcStrSetCreate (void);

FcBool
FcStrSetMember (FcStrSet *set, const FcChar8 *s);

FcBool
FcStrSetEqual (FcStrSet *sa, FcStrSet *sb);

FcBool
FcStrSetAdd (FcStrSet *set, const FcChar8 *s);

FcBool
FcStrSetAddFilename (FcStrSet *set, const FcChar8 *s);

FcBool
FcStrSetDel (FcStrSet *set, const FcChar8 *s);

void
FcStrSetDestroy (FcStrSet *set);

FcStrList *
FcStrListCreate (FcStrSet *set);

FcChar8 *
FcStrListNext (FcStrList *list);

void
FcStrListDone (FcStrList *list);

/* fcxml.c */
FcBool
FcConfigParseAndLoad (FcConfig *config, const FcChar8 *file, FcBool complain);

_FCFUNCPROTOEND

#endif /* _FONTCONFIG_H_ */