27 |
|
char buf[16]; |
28 |
|
FILE *fp; |
29 |
|
char *pathname, *err; |
30 |
+ |
unsigned wsum, hsum, ngly; |
31 |
|
int gn, ngv; |
32 |
|
register int gv; |
33 |
|
register GLYPH *g; |
51 |
|
pathname); |
52 |
|
error(SYSTEM, errmsg); |
53 |
|
} |
54 |
+ |
wsum = hsum = ngly = 0; |
55 |
|
while (fgetword(buf,sizeof(buf),fp) != NULL) { /* get each glyph */ |
56 |
|
if (!isint(buf)) |
57 |
|
goto nonint; |
58 |
|
gn = atoi(buf); |
59 |
< |
if (gn < 0 || gn > 255) { |
59 |
> |
if (gn < 1 || gn > 255) { |
60 |
|
err = "illegal"; |
61 |
|
goto fonterr; |
62 |
|
} |
73 |
|
if (g == NULL) |
74 |
|
goto memerr; |
75 |
|
g->nverts = ngv; |
76 |
< |
g->start = g->width = 128; |
76 |
> |
g->left = g->right = g->top = g->bottom = 128; |
77 |
|
ngv *= 2; |
78 |
|
gp = gvlist(g); |
79 |
|
while (ngv--) { |
84 |
|
goto fonterr; |
85 |
|
} |
86 |
|
*gp++ = gv; |
87 |
< |
if (ngv & 1) /* follow x limits */ |
88 |
< |
if (gv < g->start) |
89 |
< |
g->start = gv; |
90 |
< |
else if (gv > g->width) |
91 |
< |
g->width = gv; |
87 |
> |
if (ngv & 1) { /* follow x limits */ |
88 |
> |
if (gv < g->left) |
89 |
> |
g->left = gv; |
90 |
> |
else if (gv > g->right) |
91 |
> |
g->right = gv; |
92 |
> |
} else { /* follow y limits */ |
93 |
> |
if (gv < g->bottom) |
94 |
> |
g->bottom = gv; |
95 |
> |
else if (gv > g->top) |
96 |
> |
g->top = gv; |
97 |
> |
} |
98 |
|
} |
99 |
< |
g->width -= g->start; |
99 |
> |
if (g->right - g->left && g->top - g->bottom) { |
100 |
> |
ngly++; |
101 |
> |
wsum += g->right - g->left; |
102 |
> |
hsum += g->top - g->bottom; |
103 |
> |
} |
104 |
|
f->fg[gn] = g; |
105 |
|
} |
106 |
|
fclose(fp); |
107 |
+ |
if (ngly) { |
108 |
+ |
f->mwidth = wsum / ngly; |
109 |
+ |
f->mheight = hsum / ngly; |
110 |
+ |
} |
111 |
|
f->next = fontlist; |
112 |
|
return(fontlist = f); |
113 |
|
nonint: |
119 |
|
error(USER, errmsg); |
120 |
|
memerr: |
121 |
|
error(SYSTEM, "out of memory in fontglyph"); |
122 |
+ |
} |
123 |
+ |
|
124 |
+ |
|
125 |
+ |
int |
126 |
+ |
uniftext(sp, tp, f) /* uniformly space text line */ |
127 |
+ |
register short *sp; /* returned character spacing */ |
128 |
+ |
register char *tp; /* text line */ |
129 |
+ |
register FONT *f; /* font */ |
130 |
+ |
{ |
131 |
+ |
int linelen; |
132 |
+ |
|
133 |
+ |
linelen = *sp++ = 0; |
134 |
+ |
while (*tp) |
135 |
+ |
if (f->fg[*tp++&0xff] == NULL) |
136 |
+ |
*sp++ = 0; |
137 |
+ |
else |
138 |
+ |
linelen += *sp++ = 256; |
139 |
+ |
return(linelen); |
140 |
+ |
} |
141 |
+ |
|
142 |
+ |
|
143 |
+ |
int |
144 |
+ |
squeeztext(sp, tp, f, cis) /* squeeze text line */ |
145 |
+ |
short *sp; /* returned character spacing */ |
146 |
+ |
char *tp; /* text line */ |
147 |
+ |
FONT *f; /* font */ |
148 |
+ |
int cis; /* intercharacter spacing */ |
149 |
+ |
{ |
150 |
+ |
int linelen; |
151 |
+ |
register GLYPH *gp; |
152 |
+ |
|
153 |
+ |
gp = NULL; |
154 |
+ |
while (*tp && (gp = f->fg[*tp++&0xff]) == NULL) |
155 |
+ |
*sp++ = 0; |
156 |
+ |
cis /= 2; |
157 |
+ |
linelen = *sp = cis; |
158 |
+ |
while (gp != NULL) { |
159 |
+ |
if (gp->nverts) { /* regular character */ |
160 |
+ |
linelen += *sp++ += cis - gp->left; |
161 |
+ |
*sp = gp->right + cis; |
162 |
+ |
} else { /* space */ |
163 |
+ |
linelen += *sp++; |
164 |
+ |
*sp = f->mwidth; |
165 |
+ |
} |
166 |
+ |
gp = NULL; |
167 |
+ |
while (*tp && (gp = f->fg[*tp++&0xff]) == NULL) { |
168 |
+ |
linelen += *sp++; |
169 |
+ |
*sp = 0; |
170 |
+ |
} |
171 |
+ |
} |
172 |
+ |
linelen += *sp += cis; |
173 |
+ |
return(linelen); |
174 |
+ |
} |
175 |
+ |
|
176 |
+ |
|
177 |
+ |
int |
178 |
+ |
proptext(sp, tp, f, cis, nsi) /* space line proportionally */ |
179 |
+ |
short *sp; /* returned character spacing */ |
180 |
+ |
char *tp; /* text line */ |
181 |
+ |
FONT *f; /* font */ |
182 |
+ |
int cis; /* target intercharacter spacing */ |
183 |
+ |
int nsi; /* minimum number of spaces for indent */ |
184 |
+ |
{ |
185 |
+ |
register char *end, *tab; |
186 |
+ |
GLYPH *gp; |
187 |
+ |
short *nsp; |
188 |
+ |
int alen, len, width; |
189 |
+ |
/* start by squeezing it */ |
190 |
+ |
squeeztext(sp, tp, f, cis); |
191 |
+ |
/* now, realign spacing */ |
192 |
+ |
len = 0; |
193 |
+ |
width = alen = *sp++; |
194 |
+ |
while (*tp) { |
195 |
+ |
nsp = sp; |
196 |
+ |
for (end = tp; *end; end = tab) { |
197 |
+ |
tab = end + 1; |
198 |
+ |
alen += *nsp++; |
199 |
+ |
if (f->fg[*end&0xff]) { |
200 |
+ |
while ((gp = f->fg[*tab&0xff]) != NULL && |
201 |
+ |
gp->nverts == 0) { /* tab in */ |
202 |
+ |
alen += *nsp++; |
203 |
+ |
tab++; |
204 |
+ |
} |
205 |
+ |
len += tab - end; |
206 |
+ |
} |
207 |
+ |
if (tab - end > nsi) |
208 |
+ |
break; |
209 |
+ |
} |
210 |
+ |
len *= f->mwidth + cis; /* compute target length */ |
211 |
+ |
width += len; |
212 |
+ |
len -= alen; /* necessary adjustment */ |
213 |
+ |
while (sp < nsp) { |
214 |
+ |
alen = len/(nsp-sp); |
215 |
+ |
*sp++ += alen; |
216 |
+ |
len -= alen; |
217 |
+ |
} |
218 |
+ |
len = 0; |
219 |
+ |
alen = 0; |
220 |
+ |
tp = tab; |
221 |
+ |
} |
222 |
+ |
return(width); |
223 |
|
} |