diff options
Diffstat (limited to 'tk/generic/tkFont.h')
| -rw-r--r-- | tk/generic/tkFont.h | 76 |
1 files changed, 44 insertions, 32 deletions
diff --git a/tk/generic/tkFont.h b/tk/generic/tkFont.h index 7bd9928fbea..5c891e3e8e5 100644 --- a/tk/generic/tkFont.h +++ b/tk/generic/tkFont.h @@ -5,7 +5,7 @@ * specific parts of the font package. This information is not * visible outside of the font package. * - * Copyright (c) 1996 Sun Microsystems, Inc. + * Copyright (c) 1996-1997 Sun Microsystems, Inc. * * See the file "license.terms" for information on usage and redistribution * of this file, and for a DISCLAIMER OF ALL WARRANTIES. @@ -28,8 +28,9 @@ */ typedef struct TkFontAttributes { - Tk_Uid family; /* Font family. The most important field. */ - int pointsize; /* Pointsize of font, 0 for default size, or + Tk_Uid family; /* Font family, or NULL to represent + * plaform-specific default system font. */ + int size; /* Pointsize of font, 0 for default size, or * negative number meaning pixel size. */ int weight; /* Weight flag; see below for def'n. */ int slant; /* Slant flag; see below for def'n. */ @@ -91,13 +92,25 @@ typedef struct TkFont { * Fields used and maintained exclusively by generic code. */ - int refCount; /* Number of users of the TkFont. */ + int resourceRefCount; /* Number of active uses of this font (each + * active use corresponds to a call to + * Tk_AllocFontFromTable or Tk_GetFont). + * If this count is 0, then this TkFont + * structure is no longer valid and it isn't + * present in a hash table: it is being + * kept around only because there are objects + * referring to it. The structure is freed + * when resourceRefCount and objRefCount + * are both 0. */ + int objRefCount; /* The number of Tcl objects that reference + * this structure. */ Tcl_HashEntry *cacheHashPtr;/* Entry in font cache for this structure, * used when deleting it. */ Tcl_HashEntry *namedHashPtr;/* Pointer to hash table entry that * corresponds to the named font that the * tkfont was based on, or NULL if the tkfont * was not based on a named font. */ + Screen *screen; /* The screen where this font is valid. */ int tabWidth; /* Width of tabs in this font (pixels). */ int underlinePos; /* Offset from baseline to origin of * underline bar (used for drawing underlines @@ -106,7 +119,7 @@ typedef struct TkFont { * underlines on a non-underlined font). */ /* - * Fields in the generic font structure that are filled in by + * Fields used in the generic code that are filled in by * platform-specific code. */ @@ -121,6 +134,11 @@ typedef struct TkFont { * that was used to create this font. */ TkFontMetrics fm; /* Font metrics determined when font was * created. */ + struct TkFont *nextPtr; /* Points to the next TkFont structure with + * the same name. All fonts with the + * same name (but different displays) are + * chained together off a single entry in + * a hash table. */ } TkFont; /* @@ -130,16 +148,12 @@ typedef struct TkFont { */ typedef struct TkXLFDAttributes { - TkFontAttributes fa; /* Standard set of font attributes. */ Tk_Uid foundry; /* The foundry of the font. */ int slant; /* The tristate value for the slant, which * is significant under X. */ int setwidth; /* The proportionate width, see below for * definition. */ - int charset; /* The character set encoding (the glyph - * family), see below for definition. */ - int encoding; /* Variations within a charset for the - * glyphs above character 127. */ + Tk_Uid charset; /* The actual charset string. */ } TkXLFDAttributes; /* @@ -155,15 +169,6 @@ typedef struct TkXLFDAttributes { * stored in the setwidth field. */ /* - * Possible values for the "charset" field in a TkXLFDAttributes structure. - * The charset is the set of glyphs that are used in the font. - */ - -#define TK_CS_NORMAL 0 -#define TK_CS_SYMBOL 1 -#define TK_CS_OTHER 2 - -/* * The following defines specify the meaning of the fields in a fully * qualified XLFD. */ @@ -180,28 +185,33 @@ typedef struct TkXLFDAttributes { #define XLFD_RESOLUTION_Y 9 #define XLFD_SPACING 10 #define XLFD_AVERAGE_WIDTH 11 -#define XLFD_REGISTRY 12 -#define XLFD_ENCODING 13 -#define XLFD_NUMFIELDS 14 /* Number of fields in XLFD. */ +#define XLFD_CHARSET 12 +#define XLFD_NUMFIELDS 13 /* Number of fields in XLFD. */ /* - * Exported from generic code to platform-specific code. + * Low-level API exported by generic code to platform-specific code. */ -EXTERN int TkCreateNamedFont _ANSI_ARGS_((Tcl_Interp *interp, - Tk_Window tkwin, CONST char *name, - TkFontAttributes *faPtr)); -EXTERN void TkInitFontAttributes _ANSI_ARGS_(( - TkFontAttributes *faPtr)); -EXTERN int TkParseXLFD _ANSI_ARGS_((CONST char *string, - TkXLFDAttributes *xaPtr)); +#define TkInitFontAttributes(fa) memset((fa), 0, sizeof(TkFontAttributes)); +#define TkInitXLFDAttributes(xa) memset((xa), 0, sizeof(TkXLFDAttributes)); + +EXTERN int TkFontParseXLFD _ANSI_ARGS_((CONST char *string, + TkFontAttributes *faPtr, TkXLFDAttributes *xaPtr)); +EXTERN char ** TkFontGetAliasList _ANSI_ARGS_((CONST char *faceName)); +EXTERN char *** TkFontGetFallbacks _ANSI_ARGS_((void)); +EXTERN int TkFontGetPixels _ANSI_ARGS_((Tk_Window tkwin, + int size)); +EXTERN int TkFontGetPoints _ANSI_ARGS_((Tk_Window tkwin, + int size)); +EXTERN char ** TkFontGetGlobalClass _ANSI_ARGS_((void)); +EXTERN char ** TkFontGetSymbolClass _ANSI_ARGS_((void)); /* - * Common APIs exported to tkFont.c from all platform-specific - * implementations. + * Low-level API exported by platform-specific code to generic code. */ EXTERN void TkpDeleteFont _ANSI_ARGS_((TkFont *tkFontPtr)); +EXTERN void TkpFontPkgInit _ANSI_ARGS_((TkMainInfo *mainPtr)); EXTERN TkFont * TkpGetFontFromAttributes _ANSI_ARGS_(( TkFont *tkFontPtr, Tk_Window tkwin, CONST TkFontAttributes *faPtr)); @@ -218,3 +228,5 @@ EXTERN void TkUpdateFonts _ANSI_ARGS_((Tk_Window tkwin, # define TCL_STORAGE_CLASS DLLIMPORT #endif /* _TKFONT */ + + |