14 |
|
|
15 |
|
#include "otypes.h" |
16 |
|
|
17 |
+ |
#include "font.h" |
18 |
+ |
|
19 |
|
/* |
20 |
|
* A text pattern is specified as the text (a file or line), |
21 |
|
* the upper left anchor point, the right motion vector, the down |
57 |
|
#define fndx(m) ((m)->otype==MIX_TEXT ? 2 : 0) |
58 |
|
#define tndx(m) ((m)->otype==MIX_TEXT ? 3 : 1) |
59 |
|
|
60 |
< |
extern char *libpath; /* library search path */ |
60 |
> |
typedef struct tline { |
61 |
> |
struct tline *next; /* pointer to next line */ |
62 |
> |
/* followed by the string */ |
63 |
> |
} TLINE; |
64 |
|
|
65 |
< |
typedef unsigned char GLYPH; |
65 |
> |
#define TLSTR(l) ((char *)((l)+1)) |
66 |
|
|
62 |
– |
typedef struct font { |
63 |
– |
GLYPH *fg[256]; /* font glyphs */ |
64 |
– |
char *name; /* font file name */ |
65 |
– |
struct font *next; /* next font in list */ |
66 |
– |
} FONT; |
67 |
– |
|
67 |
|
typedef struct { |
69 |
– |
char **t; /* text array */ |
68 |
|
FVECT right, down; /* right and down unit vectors */ |
69 |
|
FONT *f; /* our font */ |
70 |
+ |
TLINE tl; /* line list */ |
71 |
|
} TEXT; |
72 |
|
|
73 |
|
extern char *fgetword(); |
74 |
|
|
75 |
|
TEXT *gettext(); |
76 |
|
|
77 |
< |
FONT *getfont(); |
77 |
> |
TLINE *tlalloc(); |
78 |
|
|
80 |
– |
static FONT *fontlist = NULL; /* our font list */ |
79 |
|
|
82 |
– |
|
80 |
|
text(m, r) |
81 |
|
register OBJREC *m; |
82 |
|
RAY *r; |
83 |
|
{ |
84 |
< |
double v[3]; |
84 |
> |
FVECT v; |
85 |
|
int foreground; |
86 |
|
/* get transformed position */ |
87 |
|
if (r->rox != NULL) |
121 |
|
} |
122 |
|
|
123 |
|
|
124 |
+ |
TLINE * |
125 |
+ |
tlalloc(s) /* allocate and assign text line */ |
126 |
+ |
char *s; |
127 |
+ |
{ |
128 |
+ |
extern char *strcpy(); |
129 |
+ |
register TLINE *tl; |
130 |
+ |
|
131 |
+ |
tl = (TLINE *)malloc(sizeof(TLINE)+1+strlen(s)); |
132 |
+ |
if (tl == NULL) |
133 |
+ |
error(SYSTEM, "out of memory in tlalloc"); |
134 |
+ |
tl->next = NULL; |
135 |
+ |
strcpy(TLSTR(tl), s); |
136 |
+ |
return(tl); |
137 |
+ |
} |
138 |
+ |
|
139 |
+ |
|
140 |
|
TEXT * |
141 |
|
gettext(tm) /* get text structure for material */ |
142 |
|
register OBJREC *tm; |
148 |
|
double d; |
149 |
|
FILE *fp; |
150 |
|
char linbuf[512]; |
151 |
< |
register TEXT *t; |
151 |
> |
TEXT *t; |
152 |
|
register int i; |
153 |
+ |
register TLINE *tlp; |
154 |
|
register char *s; |
155 |
|
|
156 |
|
if ((t = (TEXT *)tm->os) != NULL) |
161 |
|
tm->otype == PAT_CTEXT ? 15 : 9)) |
162 |
|
objerror(tm, USER, "bad # arguments"); |
163 |
|
if ((t = (TEXT *)malloc(sizeof(TEXT))) == NULL) |
164 |
< |
goto memerr; |
164 |
> |
error(SYSTEM, "out of memory in gettext"); |
165 |
|
/* compute vectors */ |
166 |
|
fcross(DxR, D, R); |
167 |
|
fcross(t->right, DxR, D); |
168 |
< |
d = DOT(D,D) / DOT(t->right,t->right); |
168 |
> |
d = DOT(D,D)/DOT(t->right,t->right); |
169 |
|
for (i = 0; i < 3; i++) |
170 |
|
t->right[i] *= d; |
171 |
|
fcross(t->down, R, DxR); |
172 |
< |
d = DOT(R,R) / DOT(t->down,t->down); |
172 |
> |
d = DOT(R,R)/DOT(t->down,t->down); |
173 |
|
for (i = 0; i < 3; i++) |
174 |
|
t->down[i] *= d; |
175 |
|
/* get text */ |
176 |
< |
t->t = (char **)malloc(2*sizeof(char **)); |
163 |
< |
if (t->t == NULL) |
164 |
< |
goto memerr; |
176 |
> |
tlp = &t->tl; |
177 |
|
if (tm->oargs.nsargs - tndx(tm) > 1) { /* single line */ |
178 |
|
s = linbuf; |
179 |
|
for (i = tndx(tm)+1; i < tm->oargs.nsargs; i++) { |
182 |
|
*s++ = ' '; |
183 |
|
} |
184 |
|
*--s = '\0'; |
185 |
< |
t->t[0] = savqstr(linbuf); |
186 |
< |
t->t[1] = NULL; |
185 |
> |
tlp->next = tlalloc(linbuf); |
186 |
> |
tlp = tlp->next; |
187 |
|
} else { /* text file */ |
188 |
|
if ((s = getpath(tm->oargs.sarg[tndx(tm)], |
189 |
|
libpath, R_OK)) == NULL) { |
196 |
|
s); |
197 |
|
error(SYSTEM, errmsg); |
198 |
|
} |
199 |
< |
for (i=0; fgets(linbuf,sizeof(linbuf),fp)!=NULL; i++) { |
199 |
> |
while (fgets(linbuf, sizeof(linbuf), fp) != NULL) { |
200 |
|
s = linbuf + strlen(linbuf) - 1; |
201 |
|
if (*s == '\n') |
202 |
|
*s = '\0'; |
203 |
< |
t->t=(char **)realloc((char *)t->t, |
204 |
< |
(i+2)*sizeof(char **)); |
193 |
< |
if (t->t == NULL) |
194 |
< |
goto memerr; |
195 |
< |
t->t[i] = savqstr(linbuf); |
203 |
> |
tlp->next = tlalloc(linbuf); |
204 |
> |
tlp = tlp->next; |
205 |
|
} |
197 |
– |
t->t[i] = NULL; |
206 |
|
fclose(fp); |
207 |
|
} |
208 |
+ |
tlp->next = NULL; |
209 |
|
/* get the font */ |
210 |
|
t->f = getfont(tm->oargs.sarg[fndx(tm)]); |
211 |
|
/* we're done */ |
212 |
|
tm->os = (char *)t; |
213 |
|
return(t); |
205 |
– |
memerr: |
206 |
– |
error(SYSTEM, "out of memory in gettext"); |
214 |
|
#undef R |
215 |
|
#undef D |
216 |
|
} |
220 |
|
OBJREC *m; |
221 |
|
{ |
222 |
|
register TEXT *tp; |
223 |
< |
register int i; |
223 |
> |
register TLINE *tlp; |
224 |
|
|
225 |
|
tp = (TEXT *)m->os; |
226 |
|
if (tp == NULL) |
227 |
|
return; |
228 |
< |
for (i = 0; tp->t[i] != NULL; i++) |
229 |
< |
freeqstr(tp->t[i]); |
223 |
< |
free((char *)tp->t); |
228 |
> |
for (tlp = tp->tl.next; tlp != NULL; tlp = tlp->next); |
229 |
> |
free((char *)tlp); |
230 |
|
free((char *)tp); |
231 |
|
m->os = NULL; |
232 |
|
} |
234 |
|
|
235 |
|
intext(p, m) /* check to see if p is in text glyph */ |
236 |
|
FVECT p; |
237 |
< |
register OBJREC *m; |
237 |
> |
OBJREC *m; |
238 |
|
{ |
239 |
|
register TEXT *tp; |
240 |
< |
register int i; |
241 |
< |
double v[3], y, x; |
242 |
< |
int col, lno; |
240 |
> |
register TLINE *tlp; |
241 |
> |
FVECT v; |
242 |
> |
double y, x; |
243 |
> |
int col; |
244 |
> |
register int lno; |
245 |
|
/* first, compute position in text */ |
246 |
+ |
tp = gettext(m); |
247 |
|
v[0] = p[0] - m->oargs.farg[0]; |
248 |
|
v[1] = p[1] - m->oargs.farg[1]; |
249 |
|
v[2] = p[2] - m->oargs.farg[2]; |
254 |
|
x -= (double)col; |
255 |
|
y = (lno+1) - y; |
256 |
|
/* get the font character */ |
257 |
< |
tp = gettext(m); |
258 |
< |
for (i = 0; i < lno; i++) |
259 |
< |
if (tp->t[i] == NULL) |
260 |
< |
return(0); |
252 |
< |
if (col >= strlen(tp->t[i])) |
257 |
> |
for (tlp = tp->tl.next; tlp != NULL; tlp = tlp->next) |
258 |
> |
if (--lno < 0) |
259 |
> |
break; |
260 |
> |
if (tlp == NULL || col >= strlen(TLSTR(tlp))) |
261 |
|
return(0); |
262 |
< |
return(inglyph(x, y, tp->f->fg[tp->t[i][col]])); |
262 |
> |
return(inglyph(x, y, tp->f->fg[TLSTR(tlp)[col]&0xff])); |
263 |
|
} |
264 |
|
|
265 |
|
|
258 |
– |
FONT * |
259 |
– |
getfont(fname) /* return font fname */ |
260 |
– |
char *fname; |
261 |
– |
{ |
262 |
– |
char buf[16]; |
263 |
– |
FILE *fp; |
264 |
– |
char *pathname, *err; |
265 |
– |
int gn, ngv, gv; |
266 |
– |
register GLYPH *g; |
267 |
– |
register FONT *f; |
268 |
– |
|
269 |
– |
for (f = fontlist; f != NULL; f = f->next) |
270 |
– |
if (!strcmp(f->name, fname)) |
271 |
– |
return(f); |
272 |
– |
/* load the font file */ |
273 |
– |
if ((pathname = getpath(fname, libpath, R_OK)) == NULL) { |
274 |
– |
sprintf(errmsg, "cannot find font file \"%s\"", fname); |
275 |
– |
error(USER, errmsg); |
276 |
– |
} |
277 |
– |
f = (FONT *)calloc(1, sizeof(FONT)); |
278 |
– |
if (f == NULL) |
279 |
– |
goto memerr; |
280 |
– |
f->name = savestr(fname); |
281 |
– |
if ((fp = fopen(pathname, "r")) == NULL) { |
282 |
– |
sprintf(errmsg, "cannot open font file \"%s\"", |
283 |
– |
pathname); |
284 |
– |
error(SYSTEM, errmsg); |
285 |
– |
} |
286 |
– |
while (fgetword(buf,sizeof(buf),fp) != NULL) { /* get each glyph */ |
287 |
– |
if (!isint(buf)) |
288 |
– |
goto nonint; |
289 |
– |
gn = atoi(buf); |
290 |
– |
if (gn < 0 || gn > 255) { |
291 |
– |
err = "illegal"; |
292 |
– |
goto fonterr; |
293 |
– |
} |
294 |
– |
if (f->fg[gn] != NULL) { |
295 |
– |
err = "duplicate"; |
296 |
– |
goto fonterr; |
297 |
– |
} |
298 |
– |
if (fgetword(buf,sizeof(buf),fp) == NULL || !isint(buf) || |
299 |
– |
(ngv = atoi(buf)) < 0 || ngv > 255) { |
300 |
– |
err = "bad # vertices for"; |
301 |
– |
goto fonterr; |
302 |
– |
} |
303 |
– |
g = (GLYPH *)malloc((2*ngv+1)*sizeof(GLYPH)); |
304 |
– |
if (g == NULL) |
305 |
– |
goto memerr; |
306 |
– |
f->fg[gn] = g; |
307 |
– |
*g++ = ngv; |
308 |
– |
ngv *= 2; |
309 |
– |
while (ngv--) { |
310 |
– |
if (fgetword(buf,sizeof(buf),fp) == NULL || |
311 |
– |
!isint(buf) || |
312 |
– |
(gv = atoi(buf)) < 0 || gv > 255) { |
313 |
– |
err = "bad vertex for"; |
314 |
– |
goto fonterr; |
315 |
– |
} |
316 |
– |
*g++ = gv; |
317 |
– |
} |
318 |
– |
} |
319 |
– |
fclose(fp); |
320 |
– |
f->next = fontlist; |
321 |
– |
return(fontlist = f); |
322 |
– |
nonint: |
323 |
– |
sprintf(errmsg, "non-integer in font file \"%s\"", pathname); |
324 |
– |
error(USER, errmsg); |
325 |
– |
fonterr: |
326 |
– |
sprintf(errmsg, "%s character (%d) in font file \"%s\"", |
327 |
– |
err, gn, pathname); |
328 |
– |
error(USER, errmsg); |
329 |
– |
memerr: |
330 |
– |
error(SYSTEM, "out of memory in fontglyph"); |
331 |
– |
} |
332 |
– |
|
333 |
– |
|
266 |
|
inglyph(x, y, gl) /* (x,y) within font glyph gl? */ |
267 |
|
double x, y; |
268 |
|
GLYPH *gl; |
269 |
|
{ |
270 |
|
int n, ncross; |
271 |
|
int xlb, ylb; |
272 |
< |
register GLYPH *p0, *p1; |
272 |
> |
register GORD *p0, *p1; |
273 |
|
|
274 |
|
if (gl == NULL) |
275 |
|
return(0); |
277 |
|
y *= 256.0; |
278 |
|
xlb = x + 0.5; |
279 |
|
ylb = y + 0.5; |
280 |
< |
n = *gl++; /* get # of vertices */ |
281 |
< |
p0 = gl + 2*(n-1); /* connect last to first */ |
282 |
< |
p1 = gl; |
280 |
> |
n = gl->nverts; /* get # of vertices */ |
281 |
> |
p0 = gvlist(gl) + 2*(n-1); /* connect last to first */ |
282 |
> |
p1 = gvlist(gl); |
283 |
|
ncross = 0; |
284 |
|
/* positive x axis cross test */ |
285 |
|
while (n--) { |