| 1 |
< |
/* Copyright (c) 1990 Regents of the University of California */ |
| 1 |
> |
/* Copyright (c) 1991 Regents of the University of California */ |
| 2 |
|
|
| 3 |
|
#ifndef lint |
| 4 |
|
static char SCCSid[] = "$SunId$ LBL"; |
| 65 |
|
struct font *next; /* next font in list */ |
| 66 |
|
} FONT; |
| 67 |
|
|
| 68 |
+ |
typedef struct tline { |
| 69 |
+ |
struct tline *next; /* pointer to next line */ |
| 70 |
+ |
/* followed by the string */ |
| 71 |
+ |
} TLINE; |
| 72 |
+ |
|
| 73 |
+ |
#define TLSTR(l) ((char *)((l)+1)) |
| 74 |
+ |
|
| 75 |
+ |
typedef struct { |
| 76 |
+ |
FVECT right, down; /* right and down unit vectors */ |
| 77 |
+ |
FONT *f; /* our font */ |
| 78 |
+ |
TLINE tl; /* line list */ |
| 79 |
+ |
} TEXT; |
| 80 |
+ |
|
| 81 |
|
extern char *fgetword(); |
| 82 |
|
|
| 83 |
< |
extern GLYPH *getglyph(); |
| 83 |
> |
TEXT *gettext(); |
| 84 |
|
|
| 85 |
< |
extern FONT *getfont(); |
| 85 |
> |
TLINE *tlalloc(); |
| 86 |
|
|
| 87 |
+ |
FONT *getfont(); |
| 88 |
+ |
|
| 89 |
|
static FONT *fontlist = NULL; /* our font list */ |
| 90 |
|
|
| 91 |
|
|
| 93 |
|
register OBJREC *m; |
| 94 |
|
RAY *r; |
| 95 |
|
{ |
| 96 |
< |
double v[3], y, x; |
| 82 |
< |
int col, lno; |
| 96 |
> |
FVECT v; |
| 97 |
|
int foreground; |
| 98 |
< |
GLYPH *g; |
| 85 |
< |
register double *ap; |
| 86 |
< |
|
| 87 |
< |
if (m->oargs.nsargs - tndx(m) < 1 || |
| 88 |
< |
m->oargs.nfargs != (m->otype == PAT_BTEXT ? 11 : |
| 89 |
< |
m->otype == PAT_CTEXT ? 15 : 9)) |
| 90 |
< |
objerror(m, USER, "bad # arguments"); |
| 91 |
< |
|
| 92 |
< |
/* first, discover position in text */ |
| 93 |
< |
ap = m->oargs.farg; |
| 98 |
> |
/* get transformed position */ |
| 99 |
|
if (r->rox != NULL) |
| 100 |
|
multp3(v, r->rop, r->rox->b.xfm); |
| 101 |
|
else |
| 102 |
|
VCOPY(v, r->rop); |
| 103 |
< |
v[0] -= ap[0]; |
| 104 |
< |
v[1] -= ap[1]; |
| 100 |
< |
v[2] -= ap[2]; |
| 101 |
< |
col = x = DOT(v, ap+3) / DOT(ap+3, ap+3); |
| 102 |
< |
lno = y = DOT(v, ap+6) / DOT(ap+6, ap+6); |
| 103 |
< |
x -= col; |
| 104 |
< |
y = (lno+1) - y; |
| 105 |
< |
/* get the font character, check it */ |
| 106 |
< |
if ((g = getglyph(m, lno, col)) == NULL) |
| 107 |
< |
foreground = 0; |
| 108 |
< |
else |
| 109 |
< |
foreground = inglyph(x, y, g); |
| 103 |
> |
/* check if we are within a text glyph */ |
| 104 |
> |
foreground = intext(v, m); |
| 105 |
|
/* modify */ |
| 106 |
|
if (m->otype == MIX_TEXT) { |
| 107 |
|
OBJECT omod; |
| 112 |
|
sprintf(errmsg, "undefined modifier \"%s\"", modname); |
| 113 |
|
objerror(m, USER, errmsg); |
| 114 |
|
} |
| 115 |
< |
raymixture(r, omod, OVOID, 1.0); |
| 115 |
> |
raytexture(r, omod); |
| 116 |
|
} else if (m->otype == PAT_BTEXT) { |
| 117 |
|
if (foreground) |
| 118 |
< |
scalecolor(r->pcol, ap[9]); |
| 118 |
> |
scalecolor(r->pcol, m->oargs.farg[9]); |
| 119 |
|
else |
| 120 |
< |
scalecolor(r->pcol, ap[10]); |
| 120 |
> |
scalecolor(r->pcol, m->oargs.farg[10]); |
| 121 |
|
} else { /* PAT_CTEXT */ |
| 122 |
|
COLOR cval; |
| 123 |
|
if (foreground) |
| 124 |
< |
setcolor(cval, ap[9], ap[10], ap[11]); |
| 124 |
> |
setcolor(cval, m->oargs.farg[9], |
| 125 |
> |
m->oargs.farg[10], |
| 126 |
> |
m->oargs.farg[11]); |
| 127 |
|
else |
| 128 |
< |
setcolor(cval, ap[12], ap[13], ap[14]); |
| 128 |
> |
setcolor(cval, m->oargs.farg[12], |
| 129 |
> |
m->oargs.farg[13], |
| 130 |
> |
m->oargs.farg[14]); |
| 131 |
|
multcolor(r->pcol, cval); |
| 132 |
|
} |
| 133 |
|
} |
| 134 |
|
|
| 135 |
|
|
| 136 |
< |
GLYPH * |
| 137 |
< |
getglyph(tm, lno, col) /* get a glyph from a text description */ |
| 136 |
> |
TLINE * |
| 137 |
> |
tlalloc(s) /* allocate and assign text line */ |
| 138 |
> |
char *s; |
| 139 |
> |
{ |
| 140 |
> |
extern char *strcpy(); |
| 141 |
> |
register TLINE *tl; |
| 142 |
> |
|
| 143 |
> |
tl = (TLINE *)malloc(sizeof(TLINE)+1+strlen(s)); |
| 144 |
> |
if (tl == NULL) |
| 145 |
> |
error(SYSTEM, "out of memory in tlalloc"); |
| 146 |
> |
tl->next = NULL; |
| 147 |
> |
strcpy(TLSTR(tl), s); |
| 148 |
> |
return(tl); |
| 149 |
> |
} |
| 150 |
> |
|
| 151 |
> |
|
| 152 |
> |
TEXT * |
| 153 |
> |
gettext(tm) /* get text structure for material */ |
| 154 |
|
register OBJREC *tm; |
| 140 |
– |
int lno; |
| 141 |
– |
int col; |
| 155 |
|
{ |
| 156 |
+ |
#define R (tm->oargs.farg+3) |
| 157 |
+ |
#define D (tm->oargs.farg+6) |
| 158 |
|
extern char *strcpy(), *fgets(); |
| 159 |
+ |
FVECT DxR; |
| 160 |
+ |
double d; |
| 161 |
|
FILE *fp; |
| 162 |
|
char linbuf[512]; |
| 163 |
+ |
TEXT *t; |
| 164 |
|
register int i; |
| 165 |
< |
register char **txt; |
| 165 |
> |
register TLINE *tlp; |
| 166 |
|
register char *s; |
| 167 |
|
|
| 168 |
< |
if (lno < 0 || col < 0) |
| 169 |
< |
return(NULL); |
| 170 |
< |
if (tm->os == NULL) { |
| 171 |
< |
txt = (char **)malloc(2*sizeof(char **)); |
| 172 |
< |
if (txt == NULL) |
| 173 |
< |
goto memerr; |
| 174 |
< |
if (tm->oargs.nsargs - tndx(tm) > 1) { /* single line */ |
| 175 |
< |
s = linbuf; |
| 176 |
< |
for (i = tndx(tm)+1; i < tm->oargs.nsargs; i++) { |
| 177 |
< |
strcpy(s, tm->oargs.sarg[i]); |
| 178 |
< |
s += strlen(s); |
| 179 |
< |
*s++ = ' '; |
| 180 |
< |
} |
| 181 |
< |
*--s = '\0'; |
| 182 |
< |
txt[0] = savqstr(linbuf); |
| 183 |
< |
txt[1] = NULL; |
| 184 |
< |
} else { /* text file */ |
| 185 |
< |
if ((s = getpath(tm->oargs.sarg[tndx(tm)], |
| 186 |
< |
libpath, R_OK)) == NULL) { |
| 187 |
< |
sprintf(errmsg, "cannot find text file \"%s\"", |
| 188 |
< |
tm->oargs.sarg[tndx(tm)]); |
| 189 |
< |
error(USER, errmsg); |
| 190 |
< |
} |
| 191 |
< |
if ((fp = fopen(s, "r")) == NULL) { |
| 192 |
< |
sprintf(errmsg, "cannot open text file \"%s\"", |
| 193 |
< |
s); |
| 194 |
< |
error(SYSTEM, errmsg); |
| 177 |
< |
} |
| 178 |
< |
for (i=0; fgets(linbuf,sizeof(linbuf),fp)!=NULL; i++) { |
| 179 |
< |
s = linbuf + strlen(linbuf) - 1; |
| 180 |
< |
if (*s == '\n') |
| 181 |
< |
*s = '\0'; |
| 182 |
< |
txt=(char **)realloc(txt,(i+2)*sizeof(char **)); |
| 183 |
< |
if (txt == NULL) |
| 184 |
< |
goto memerr; |
| 185 |
< |
txt[i] = savqstr(linbuf); |
| 186 |
< |
} |
| 187 |
< |
txt[i] = NULL; |
| 188 |
< |
fclose(fp); |
| 168 |
> |
if ((t = (TEXT *)tm->os) != NULL) |
| 169 |
> |
return(t); |
| 170 |
> |
/* check arguments */ |
| 171 |
> |
if (tm->oargs.nsargs - tndx(tm) < 1 || |
| 172 |
> |
tm->oargs.nfargs != (tm->otype == PAT_BTEXT ? 11 : |
| 173 |
> |
tm->otype == PAT_CTEXT ? 15 : 9)) |
| 174 |
> |
objerror(tm, USER, "bad # arguments"); |
| 175 |
> |
if ((t = (TEXT *)malloc(sizeof(TEXT))) == NULL) |
| 176 |
> |
error(SYSTEM, "out of memory in gettext"); |
| 177 |
> |
/* compute vectors */ |
| 178 |
> |
fcross(DxR, D, R); |
| 179 |
> |
fcross(t->right, DxR, D); |
| 180 |
> |
d = DOT(D,D)/DOT(t->right,t->right); |
| 181 |
> |
for (i = 0; i < 3; i++) |
| 182 |
> |
t->right[i] *= d; |
| 183 |
> |
fcross(t->down, R, DxR); |
| 184 |
> |
d = DOT(R,R)/DOT(t->down,t->down); |
| 185 |
> |
for (i = 0; i < 3; i++) |
| 186 |
> |
t->down[i] *= d; |
| 187 |
> |
/* get text */ |
| 188 |
> |
tlp = &t->tl; |
| 189 |
> |
if (tm->oargs.nsargs - tndx(tm) > 1) { /* single line */ |
| 190 |
> |
s = linbuf; |
| 191 |
> |
for (i = tndx(tm)+1; i < tm->oargs.nsargs; i++) { |
| 192 |
> |
strcpy(s, tm->oargs.sarg[i]); |
| 193 |
> |
s += strlen(s); |
| 194 |
> |
*s++ = ' '; |
| 195 |
|
} |
| 196 |
< |
tm->os = (char *)txt; |
| 196 |
> |
*--s = '\0'; |
| 197 |
> |
tlp->next = tlalloc(linbuf); |
| 198 |
> |
tlp = tlp->next; |
| 199 |
> |
} else { /* text file */ |
| 200 |
> |
if ((s = getpath(tm->oargs.sarg[tndx(tm)], |
| 201 |
> |
libpath, R_OK)) == NULL) { |
| 202 |
> |
sprintf(errmsg, "cannot find text file \"%s\"", |
| 203 |
> |
tm->oargs.sarg[tndx(tm)]); |
| 204 |
> |
error(USER, errmsg); |
| 205 |
> |
} |
| 206 |
> |
if ((fp = fopen(s, "r")) == NULL) { |
| 207 |
> |
sprintf(errmsg, "cannot open text file \"%s\"", |
| 208 |
> |
s); |
| 209 |
> |
error(SYSTEM, errmsg); |
| 210 |
> |
} |
| 211 |
> |
while (fgets(linbuf, sizeof(linbuf), fp) != NULL) { |
| 212 |
> |
s = linbuf + strlen(linbuf) - 1; |
| 213 |
> |
if (*s == '\n') |
| 214 |
> |
*s = '\0'; |
| 215 |
> |
tlp->next = tlalloc(linbuf); |
| 216 |
> |
tlp = tlp->next; |
| 217 |
> |
} |
| 218 |
> |
fclose(fp); |
| 219 |
|
} |
| 220 |
< |
txt = (char **)tm->os; |
| 221 |
< |
for (i = 0; i < lno; i++) |
| 222 |
< |
if (txt[i] == NULL) |
| 220 |
> |
tlp->next = NULL; |
| 221 |
> |
/* get the font */ |
| 222 |
> |
t->f = getfont(tm->oargs.sarg[fndx(tm)]); |
| 223 |
> |
/* we're done */ |
| 224 |
> |
tm->os = (char *)t; |
| 225 |
> |
return(t); |
| 226 |
> |
#undef R |
| 227 |
> |
#undef D |
| 228 |
> |
} |
| 229 |
> |
|
| 230 |
> |
|
| 231 |
> |
freetext(m) /* free text structures associated with m */ |
| 232 |
> |
OBJREC *m; |
| 233 |
> |
{ |
| 234 |
> |
register TEXT *tp; |
| 235 |
> |
register TLINE *tlp; |
| 236 |
> |
|
| 237 |
> |
tp = (TEXT *)m->os; |
| 238 |
> |
if (tp == NULL) |
| 239 |
> |
return; |
| 240 |
> |
for (tlp = tp->tl.next; tlp != NULL; tlp = tlp->next); |
| 241 |
> |
free((char *)tlp); |
| 242 |
> |
free((char *)tp); |
| 243 |
> |
m->os = NULL; |
| 244 |
> |
} |
| 245 |
> |
|
| 246 |
> |
|
| 247 |
> |
intext(p, m) /* check to see if p is in text glyph */ |
| 248 |
> |
FVECT p; |
| 249 |
> |
OBJREC *m; |
| 250 |
> |
{ |
| 251 |
> |
register TEXT *tp; |
| 252 |
> |
register TLINE *tlp; |
| 253 |
> |
FVECT v; |
| 254 |
> |
double y, x; |
| 255 |
> |
int col; |
| 256 |
> |
register int lno; |
| 257 |
> |
/* first, compute position in text */ |
| 258 |
> |
tp = gettext(m); |
| 259 |
> |
v[0] = p[0] - m->oargs.farg[0]; |
| 260 |
> |
v[1] = p[1] - m->oargs.farg[1]; |
| 261 |
> |
v[2] = p[2] - m->oargs.farg[2]; |
| 262 |
> |
col = x = DOT(v, tp->right); |
| 263 |
> |
lno = y = DOT(v, tp->down); |
| 264 |
> |
if (x < 0.0 || y < 0.0) |
| 265 |
> |
return(0); |
| 266 |
> |
x -= (double)col; |
| 267 |
> |
y = (lno+1) - y; |
| 268 |
> |
/* get the font character */ |
| 269 |
> |
for (tlp = tp->tl.next; tlp != NULL; tlp = tlp->next) |
| 270 |
> |
if (--lno < 0) |
| 271 |
|
break; |
| 272 |
< |
if ((s = txt[i]) == NULL || col >= strlen(s)) |
| 273 |
< |
return(NULL); |
| 274 |
< |
else |
| 199 |
< |
return(getfont(tm->oargs.sarg[fndx(tm)])->fg[s[col]]); |
| 200 |
< |
memerr: |
| 201 |
< |
error(SYSTEM, "out of memory in getglyph"); |
| 272 |
> |
if (tlp == NULL || col >= strlen(TLSTR(tlp))) |
| 273 |
> |
return(0); |
| 274 |
> |
return(inglyph(x, y, tp->f->fg[TLSTR(tlp)[col]])); |
| 275 |
|
} |
| 276 |
|
|
| 277 |
|
|
| 359 |
|
int xlb, ylb; |
| 360 |
|
register GLYPH *p0, *p1; |
| 361 |
|
|
| 362 |
< |
if (x < 0.0 || y < 0.0) |
| 362 |
> |
if (gl == NULL) |
| 363 |
|
return(0); |
| 364 |
|
x *= 256.0; /* get glyph coordinates */ |
| 365 |
|
y *= 256.0; |
