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#include "copyright.h" |
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#include "standard.h" |
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#include <stdlib.h> |
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#include "paths.h" |
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#include "rtio.h" |
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#include "rterror.h" |
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#include "font.h" |
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#define galloc(nv) (GLYPH *)malloc(sizeof(GLYPH)+2*sizeof(GORD)*(nv)) |
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int retainfonts = 0; /* retain loaded fonts? */ |
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static FONT *fontlist = NULL; /* list of loaded fonts */ |
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FONT * |
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getfont(fname) /* return font fname */ |
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char *fname; |
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getfont( /* return font fname */ |
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char *fname |
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) |
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{ |
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char embuf[512]; |
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FILE *fp; |
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char *pathname, *err; |
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char *pathname, *err = NULL; |
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unsigned wsum, hsum, ngly; |
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int gn, ngv, gv; |
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register GLYPH *g; |
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GLYPH *g; |
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GORD *gp; |
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register FONT *f; |
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FONT *f; |
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for (f = fontlist; f != NULL; f = f->next) |
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if (!strcmp(f->name, fname)) { |
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return(f); |
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} |
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/* load the font file */ |
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if ((pathname = getpath(fname, getlibpath(), R_OK)) == NULL) { |
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sprintf(errmsg, "cannot find font file \"%s\"", fname); |
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error(USER, errmsg); |
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if ((pathname = getpath(fname, getrlibpath(), R_OK)) == NULL) { |
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sprintf(embuf, "cannot find font file \"%s\"\n", fname); |
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eputs(embuf); |
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return(NULL); |
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} |
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if ((fp = fopen(pathname, "r")) == NULL) { |
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sprintf(embuf, "cannot open font file \"%s\"\n", pathname); |
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eputs(embuf); |
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return(NULL); |
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} |
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f = (FONT *)calloc(1, sizeof(FONT)); |
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if (f == NULL) |
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goto memerr; |
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f->name = savestr(fname); |
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strcpy(f->name, fname); |
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f->nref = 1; |
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if ((fp = fopen(pathname, "r")) == NULL) { |
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sprintf(errmsg, "cannot open font file \"%s\"", |
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pathname); |
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error(SYSTEM, errmsg); |
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} |
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wsum = hsum = ngly = 0; /* get each glyph */ |
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while ((ngv = fgetval(fp, 'i', (char *)&gn)) != EOF) { |
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if (ngv == 0) |
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err = "bad # vertices for"; |
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goto fonterr; |
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} |
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if (ngv > f->maxgv) |
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f->maxgv = ngv; |
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g = galloc(ngv); |
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if (g == NULL) |
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goto memerr; |
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f->next = fontlist; |
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return(fontlist = f); |
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nonint: |
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sprintf(errmsg, "non-integer in font file \"%s\"", pathname); |
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error(USER, errmsg); |
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> |
sprintf(embuf, "non-integer in font file \"%s\"\n", pathname); |
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> |
eputs(embuf); |
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> |
fclose(fp); |
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> |
return(NULL); |
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fonterr: |
124 |
< |
sprintf(errmsg, "%s character (%d) in font file \"%s\"", |
124 |
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sprintf(embuf, "%s character (%d) in font file \"%s\"\n", |
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err, gn, pathname); |
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error(USER, errmsg); |
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eputs(embuf); |
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fclose(fp); |
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return(NULL); |
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memerr: |
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error(SYSTEM, "out of memory in fontglyph"); |
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> |
eputs("out of memory in getfont()\n"); |
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> |
fclose(fp); |
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> |
return(NULL); |
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} |
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135 |
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void |
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freefont(fnt) /* release a font (free all if NULL) */ |
138 |
< |
FONT *fnt; |
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> |
freefont( /* release a font (free all if NULL) */ |
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> |
FONT *fnt |
139 |
> |
) |
140 |
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{ |
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FONT head; |
142 |
< |
register FONT *fl, *f; |
143 |
< |
register int i; |
142 |
> |
FONT *fl, *f; |
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> |
int i; |
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/* check reference count */ |
145 |
< |
if (fnt != NULL && (fnt->nref-- > 1 | retainfonts)) |
145 |
> |
if (fnt != NULL && (fnt->nref -= (f->nref > 0)) | retainfonts)) |
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return; |
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head.next = fontlist; |
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fl = &head; |
149 |
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while ((f = fl->next) != NULL) |
150 |
< |
if ((fnt == NULL | fnt == f)) { |
150 |
> |
if ((fnt == NULL) | (fnt == f)) { |
151 |
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fl->next = f->next; |
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for (i = 0; i < 256; i++) |
153 |
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if (f->fg[i] != NULL) |
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free((void *)f->fg[i]); |
141 |
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freestr(f->name); |
155 |
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free((void *)f); |
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} else |
157 |
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fl = f; |
160 |
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161 |
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162 |
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int |
163 |
< |
uniftext(sp, tp, f) /* uniformly space text line */ |
164 |
< |
register short *sp; /* returned character spacing */ |
165 |
< |
register char *tp; /* text line */ |
166 |
< |
register FONT *f; /* font */ |
163 |
> |
uniftext( /* uniformly space text line */ |
164 |
> |
short *sp, /* returned character spacing */ |
165 |
> |
char *tp, /* text line */ |
166 |
> |
FONT *f /* font */ |
167 |
> |
) |
168 |
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{ |
169 |
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int linelen; |
170 |
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|
179 |
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|
180 |
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|
181 |
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int |
182 |
< |
squeeztext(sp, tp, f, cis) /* squeeze text line */ |
183 |
< |
short *sp; /* returned character spacing */ |
184 |
< |
char *tp; /* text line */ |
185 |
< |
FONT *f; /* font */ |
186 |
< |
int cis; /* intercharacter spacing */ |
182 |
> |
squeeztext( /* squeeze text line */ |
183 |
> |
short *sp, /* returned character spacing */ |
184 |
> |
char *tp, /* text line */ |
185 |
> |
FONT *f, /* font */ |
186 |
> |
int cis /* intercharacter spacing */ |
187 |
> |
) |
188 |
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{ |
189 |
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int linelen; |
190 |
< |
register GLYPH *gp; |
190 |
> |
GLYPH *gp; |
191 |
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192 |
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linelen = 0; |
193 |
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gp = NULL; |
215 |
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|
216 |
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217 |
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int |
218 |
< |
proptext(sp, tp, f, cis, nsi) /* space line proportionally */ |
219 |
< |
short *sp; /* returned character spacing */ |
220 |
< |
char *tp; /* text line */ |
221 |
< |
FONT *f; /* font */ |
222 |
< |
int cis; /* target intercharacter spacing */ |
223 |
< |
int nsi; /* minimum number of spaces for indent */ |
218 |
> |
proptext( /* space line proportionally */ |
219 |
> |
short *sp, /* returned character spacing */ |
220 |
> |
char *tp, /* text line */ |
221 |
> |
FONT *f, /* font */ |
222 |
> |
int cis, /* target intercharacter spacing */ |
223 |
> |
int nsi /* minimum number of spaces for indent */ |
224 |
> |
) |
225 |
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{ |
226 |
< |
register char *end, *tab; |
226 |
> |
char *end, *tab = NULL; |
227 |
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GLYPH *gp; |
228 |
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short *nsp; |
229 |
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int alen, len, width; |