263 lines
6.3 KiB
C
263 lines
6.3 KiB
C
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/* $XFree86: xc/programs/xditview/XFontName.c,v 1.2 2001/08/01 00:45:03 tsi Exp $ */
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/*
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* XFontName.c
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*
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* build/parse X Font name strings
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*/
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# include <X11/Xlib.h>
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# include <X11/Intrinsic.h>
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# include "XFontName.h"
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#include <ctype.h>
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static char *
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extractStringField (
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char *name,
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char *buffer,
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int size,
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unsigned int *attrp,
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unsigned int bit)
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{
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char *buf = buffer;
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if (!*name)
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return 0;
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while (*name && *name != '-' && size > 0) {
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*buf++ = *name++;
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--size;
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}
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if (size <= 0)
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return 0;
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*buf = '\0';
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if (buffer[0] != '*' || buffer[1] != '\0')
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*attrp |= bit;
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if (*name == '-')
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return name+1;
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return name;
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}
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static char *
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extractUnsignedField (
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char *name,
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unsigned int *result,
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unsigned int *attrp,
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unsigned int bit)
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{
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char buf[256];
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char *c;
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unsigned int i;
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name = extractStringField (name, buf, sizeof (buf), attrp, bit);
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if (!name)
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return 0;
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if (!(*attrp & bit))
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return name;
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i = 0;
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for (c = buf; *c; c++) {
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if (!isdigit (*c))
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return 0;
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i = i * 10 + (*c - '0');
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}
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*result = i;
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return name;
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}
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Bool
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XParseFontName (fontNameString, fontName, fontNameAttributes)
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XFontNameString fontNameString;
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XFontName *fontName;
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unsigned int *fontNameAttributes;
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{
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char *name = fontNameString;
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XFontName temp;
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unsigned int attributes = 0;
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#define GetString(field,bit)\
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if (!(name = extractStringField \
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(name, temp.field, sizeof (temp.field),\
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&attributes, bit))) \
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return False;
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#define GetUnsigned(field,bit)\
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if (!(name = extractUnsignedField \
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(name, &temp.field, \
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&attributes, bit))) \
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return False;
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GetString (Registry, FontNameRegistry)
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GetString (Foundry, FontNameFoundry)
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GetString (FamilyName, FontNameFamilyName)
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GetString (WeightName, FontNameWeightName)
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GetString (Slant, FontNameSlant)
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GetString (SetwidthName, FontNameSetwidthName)
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GetString (AddStyleName, FontNameAddStyleName)
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GetUnsigned (PixelSize, FontNamePixelSize)
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GetUnsigned (PointSize, FontNamePointSize)
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GetUnsigned (ResolutionX, FontNameResolutionX)
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GetUnsigned (ResolutionY, FontNameResolutionY)
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GetString (Spacing, FontNameSpacing)
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GetUnsigned (AverageWidth, FontNameAverageWidth)
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GetString (CharSetRegistry, FontNameCharSetRegistry)
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if (!*name) {
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temp.CharSetEncoding[0] = '\0';
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attributes |= FontNameCharSetEncoding;
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} else {
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GetString (CharSetEncoding, FontNameCharSetEncoding)
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}
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*fontName = temp;
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*fontNameAttributes = attributes;
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return True;
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}
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static char *
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utoa (
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unsigned int u,
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char *s,
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int size)
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{
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char *t;
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t = s + size;
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*--t = '\0';
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do
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*--t = (u % 10) + '0';
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while (u /= 10);
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return t;
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}
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Bool
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XFormatFontName (fontName, fontNameAttributes, fontNameString)
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XFontName *fontName;
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unsigned int fontNameAttributes;
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XFontNameString fontNameString;
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{
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XFontNameString tmp;
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char *name = tmp, *f;
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int left = sizeof (tmp) - 1;
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char number[32];
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#define PutString(field, bit)\
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f = (fontNameAttributes & bit) ? \
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fontName->field \
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: "*"; \
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if ((left -= strlen (f)) < 0) \
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return False; \
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while (*f) \
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if ((*name++ = *f++) == '-') \
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return False;
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#define PutHyphen()\
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if (--left < 0) \
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return False; \
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*name++ = '-';
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#define PutUnsigned(field, bit) \
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f = (fontNameAttributes & bit) ? \
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utoa (fontName->field, number, sizeof (number)) \
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: "*"; \
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if ((left -= strlen (f)) < 0) \
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return False; \
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while (*f) \
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*name++ = *f++;
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PutString (Registry, FontNameRegistry)
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PutHyphen ();
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PutString (Foundry, FontNameFoundry)
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PutHyphen ();
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PutString (FamilyName, FontNameFamilyName)
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PutHyphen ();
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PutString (WeightName, FontNameWeightName)
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PutHyphen ();
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PutString (Slant, FontNameSlant)
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PutHyphen ();
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PutString (SetwidthName, FontNameSetwidthName)
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PutHyphen ();
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PutString (AddStyleName, FontNameAddStyleName)
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PutHyphen ();
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PutUnsigned (PixelSize, FontNamePixelSize)
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PutHyphen ();
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PutUnsigned (PointSize, FontNamePointSize)
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PutHyphen ();
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PutUnsigned (ResolutionX, FontNameResolutionX)
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PutHyphen ();
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PutUnsigned (ResolutionY, FontNameResolutionY)
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PutHyphen ();
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PutString (Spacing, FontNameSpacing)
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PutHyphen ();
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PutUnsigned (AverageWidth, FontNameAverageWidth)
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PutHyphen ();
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PutString (CharSetRegistry, FontNameCharSetRegistry)
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PutHyphen ();
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PutString (CharSetEncoding, FontNameCharSetEncoding)
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*name = '\0';
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strcpy (fontNameString, tmp);
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return True;
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}
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#if 0
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Bool
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XCompareFontName (
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XFontName *name1,
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XFontName *name2,
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unsigned int fontNameAttributes)
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{
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#define CompareString(field,bit) \
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if (fontNameAttributes & bit) \
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if (strcmp (name1->field, name2->field)) \
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return False;
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#define CompareUnsigned(field,bit) \
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if (fontNameAttributes & bit) \
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if (name1->field != name2->field) \
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return False;
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CompareString (Registry, FontNameRegistry)
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CompareString (Foundry, FontNameFoundry)
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CompareString (FamilyName, FontNameFamilyName)
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CompareString (WeightName, FontNameWeightName)
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CompareString (Slant, FontNameSlant)
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CompareString (SetwidthName, FontNameSetwidthName)
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CompareString (AddStyleName, FontNameAddStyleName)
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CompareUnsigned (PixelSize, FontNamePixelSize)
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CompareUnsigned (PointSize, FontNamePointSize)
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CompareUnsigned (ResolutionX, FontNameResolutionX)
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CompareUnsigned (ResolutionY, FontNameResolutionY)
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CompareString (Spacing, FontNameSpacing)
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CompareUnsigned (AverageWidth, FontNameAverageWidth)
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CompareString (CharSetRegistry, FontNameCharSetRegistry)
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CompareString (CharSetEncoding, FontNameCharSetEncoding)
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return True;
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}
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Bool
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XCopyFontName (
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XFontName *name1,
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XFontName *name2,
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unsigned int fontNameAttributes)
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{
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#define CopyString(field,bit) \
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if (fontNameAttributes & bit) \
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strcpy (name2->field, name1->field);
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#define CopyUnsigned(field,bit) \
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if (fontNameAttributes & bit) \
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name2->field = name1->field;
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CopyString (Registry, FontNameRegistry)
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CopyString (Foundry, FontNameFoundry)
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CopyString (FamilyName, FontNameFamilyName)
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CopyString (WeightName, FontNameWeightName)
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CopyString (Slant, FontNameSlant)
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CopyString (SetwidthName, FontNameSetwidthName)
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CopyString (AddStyleName, FontNameAddStyleName)
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CopyUnsigned (PixelSize, FontNamePixelSize)
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CopyUnsigned (PointSize, FontNamePointSize)
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CopyUnsigned (ResolutionX, FontNameResolutionX)
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CopyUnsigned (ResolutionY, FontNameResolutionY)
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CopyString (Spacing, FontNameSpacing)
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CopyUnsigned (AverageWidth, FontNameAverageWidth)
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CopyString (CharSetRegistry, FontNameCharSetRegistry)
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CopyString (CharSetEncoding, FontNameCharSetEncoding)
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return True;
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}
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#endif
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