| 1 |
#ifndef lint |
| 2 |
static const char RCSid[] = "$Id: plotout.c,v 1.1 2003/02/22 02:07:26 greg Exp $"; |
| 3 |
#endif |
| 4 |
/* |
| 5 |
* Program to send meta-files to plot(3X) drivers |
| 6 |
* |
| 7 |
* cc -o plotout plotout.c mfio.o syscalls.o misc.o -lplot |
| 8 |
* |
| 9 |
* Plot drivers |
| 10 |
*/ |
| 11 |
|
| 12 |
|
| 13 |
#ifdef FORTEK |
| 14 |
#define XCOM "pexpand +vOCIsm -rtpSUR %s" |
| 15 |
#else |
| 16 |
#define XCOM "pexpand +vOCIs -rtpSUR %s" |
| 17 |
#endif |
| 18 |
|
| 19 |
|
| 20 |
|
| 21 |
|
| 22 |
#include <fcntl.h> |
| 23 |
|
| 24 |
#include "meta.h" |
| 25 |
|
| 26 |
|
| 27 |
|
| 28 |
|
| 29 |
char *progname; |
| 30 |
|
| 31 |
static short newpage = TRUE; |
| 32 |
|
| 33 |
static int curx = -1, /* current position */ |
| 34 |
cury = -1; |
| 35 |
|
| 36 |
static short curmod = -1; /* current line drawing mode */ |
| 37 |
|
| 38 |
static char lmode[4][16] = {"solid", "shortdashed", |
| 39 |
"dotted", "dotdashed"}; |
| 40 |
|
| 41 |
static PRIMITIVE nextp; |
| 42 |
|
| 43 |
|
| 44 |
|
| 45 |
main(argc, argv) |
| 46 |
|
| 47 |
int argc; |
| 48 |
char **argv; |
| 49 |
|
| 50 |
{ |
| 51 |
FILE *fp, *popen(); |
| 52 |
char comargs[200], command[300]; |
| 53 |
short condonly = FALSE, conditioned = FALSE; |
| 54 |
|
| 55 |
progname = *argv++; |
| 56 |
argc--; |
| 57 |
|
| 58 |
while (argc && **argv == '-') { |
| 59 |
switch (*(*argv+1)) { |
| 60 |
case 'c': |
| 61 |
condonly = TRUE; |
| 62 |
break; |
| 63 |
case 'r': |
| 64 |
conditioned = TRUE; |
| 65 |
break; |
| 66 |
default: |
| 67 |
error(WARNING, "unknown option"); |
| 68 |
break; |
| 69 |
} |
| 70 |
argv++; |
| 71 |
argc--; |
| 72 |
} |
| 73 |
|
| 74 |
if (conditioned) |
| 75 |
if (argc) |
| 76 |
while (argc) { |
| 77 |
fp = efopen(*argv, "r"); |
| 78 |
plot(fp); |
| 79 |
fclose(fp); |
| 80 |
argv++; |
| 81 |
argc--; |
| 82 |
} |
| 83 |
else |
| 84 |
plot(stdin); |
| 85 |
else { |
| 86 |
comargs[0] = '\0'; |
| 87 |
while (argc) { |
| 88 |
strcat(comargs, " "); |
| 89 |
strcat(comargs, *argv); |
| 90 |
argv++; |
| 91 |
argc--; |
| 92 |
} |
| 93 |
sprintf(command, XCOM, comargs); |
| 94 |
if (condonly) |
| 95 |
return(system(command)); |
| 96 |
else { |
| 97 |
if ((fp = popen(command, "r")) == NULL) |
| 98 |
error(SYSTEM, "cannot execute input filter"); |
| 99 |
plot(fp); |
| 100 |
pclose(fp); |
| 101 |
} |
| 102 |
} |
| 103 |
|
| 104 |
return(0); |
| 105 |
} |
| 106 |
|
| 107 |
|
| 108 |
|
| 109 |
|
| 110 |
|
| 111 |
plot(infp) /* plot meta-file */ |
| 112 |
|
| 113 |
FILE *infp; |
| 114 |
|
| 115 |
{ |
| 116 |
|
| 117 |
openpl(); |
| 118 |
space(0, 0, XYSIZE, XYSIZE); |
| 119 |
|
| 120 |
do { |
| 121 |
readp(&nextp, infp); |
| 122 |
while (isprim(nextp.com)) { |
| 123 |
doprim(&nextp); |
| 124 |
fargs(&nextp); |
| 125 |
readp(&nextp, infp); |
| 126 |
} |
| 127 |
doglobal(&nextp); |
| 128 |
fargs(&nextp); |
| 129 |
} while (nextp.com != PEOF); |
| 130 |
|
| 131 |
closepl(); |
| 132 |
|
| 133 |
} |
| 134 |
|
| 135 |
|
| 136 |
|
| 137 |
|
| 138 |
|
| 139 |
doglobal(g) /* execute a global command */ |
| 140 |
|
| 141 |
PRIMITIVE *g; |
| 142 |
|
| 143 |
{ |
| 144 |
int tty; |
| 145 |
char c; |
| 146 |
|
| 147 |
switch (g->com) { |
| 148 |
|
| 149 |
case PEOF: |
| 150 |
break; |
| 151 |
|
| 152 |
case PDRAW: |
| 153 |
fflush(stdout); |
| 154 |
break; |
| 155 |
|
| 156 |
case PEOP: |
| 157 |
newpage = TRUE; |
| 158 |
if (!isatty(fileno(stdout))) |
| 159 |
break; |
| 160 |
/* fall through */ |
| 161 |
|
| 162 |
case PPAUS: |
| 163 |
fflush(stdout); |
| 164 |
tty = open(TTY, O_RDWR); |
| 165 |
if (g->args != NULL) { |
| 166 |
write(tty, g->args, strlen(g->args)); |
| 167 |
write(tty, " - (hit return to continue)", 27); |
| 168 |
} else |
| 169 |
write(tty, "\007", 1); |
| 170 |
do { |
| 171 |
c = '\n'; |
| 172 |
read(tty, &c, 1); |
| 173 |
} while (c != '\n' && c != '\r'); |
| 174 |
close(tty); |
| 175 |
break; |
| 176 |
|
| 177 |
default: |
| 178 |
sprintf(errmsg, "unknown command '%c' in doglobal", g->com); |
| 179 |
error(WARNING, errmsg); |
| 180 |
break; |
| 181 |
} |
| 182 |
|
| 183 |
} |
| 184 |
|
| 185 |
|
| 186 |
|
| 187 |
|
| 188 |
doprim(p) /* plot primitive */ |
| 189 |
|
| 190 |
register PRIMITIVE *p; |
| 191 |
|
| 192 |
{ |
| 193 |
|
| 194 |
if (newpage) { |
| 195 |
erase(); |
| 196 |
newpage = FALSE; |
| 197 |
} |
| 198 |
|
| 199 |
switch (p->com) { |
| 200 |
|
| 201 |
case PLSEG: |
| 202 |
plotlseg(p); |
| 203 |
break; |
| 204 |
|
| 205 |
case PMSTR: |
| 206 |
printstr(p); |
| 207 |
break; |
| 208 |
|
| 209 |
default: |
| 210 |
sprintf(errmsg, "unknown command '%c' in doprim", p->com); |
| 211 |
error(WARNING, errmsg); |
| 212 |
return; |
| 213 |
} |
| 214 |
|
| 215 |
} |
| 216 |
|
| 217 |
|
| 218 |
|
| 219 |
|
| 220 |
|
| 221 |
|
| 222 |
printstr(p) /* output a string */ |
| 223 |
|
| 224 |
register PRIMITIVE *p; |
| 225 |
|
| 226 |
{ |
| 227 |
|
| 228 |
move(p->xy[XMN], p->xy[YMX]); |
| 229 |
label(p->args); |
| 230 |
curx = -1; |
| 231 |
cury = -1; |
| 232 |
|
| 233 |
} |
| 234 |
|
| 235 |
|
| 236 |
|
| 237 |
|
| 238 |
|
| 239 |
plotlseg(p) /* plot a line segment */ |
| 240 |
|
| 241 |
register PRIMITIVE *p; |
| 242 |
|
| 243 |
{ |
| 244 |
static short right = FALSE; |
| 245 |
int y1, y2; |
| 246 |
short lm = (p->arg0 >> 4) & 03; |
| 247 |
|
| 248 |
if (p->arg0 & 0100) { |
| 249 |
y1 = p->xy[YMX]; |
| 250 |
y2 = p->xy[YMN]; |
| 251 |
} else { |
| 252 |
y1 = p->xy[YMN]; |
| 253 |
y2 = p->xy[YMX]; |
| 254 |
} |
| 255 |
|
| 256 |
if (lm != curmod) { |
| 257 |
linemod(lmode[lm]); |
| 258 |
curmod = lm; |
| 259 |
} |
| 260 |
|
| 261 |
if (p->xy[XMN] == curx && y1 == cury) { |
| 262 |
cont(p->xy[XMX], y2); |
| 263 |
curx = p->xy[XMX]; |
| 264 |
cury = y2; |
| 265 |
} else if (p->xy[XMX] == curx && y2 == cury) { |
| 266 |
cont(p->xy[XMN], y1); |
| 267 |
curx = p->xy[XMN]; |
| 268 |
cury = y1; |
| 269 |
} else if (right = !right) { |
| 270 |
line(p->xy[XMN], y1, p->xy[XMX], y2); |
| 271 |
curx = p->xy[XMX]; |
| 272 |
cury = y2; |
| 273 |
} else { |
| 274 |
line(p->xy[XMX], y2, p->xy[XMN], y1); |
| 275 |
curx = p->xy[XMN]; |
| 276 |
cury = y1; |
| 277 |
} |
| 278 |
} |
