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#ifndef lint |
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static const char RCSid[] = "$Id: xmeta.c,v 1.4 2007/10/08 18:07:57 greg Exp $"; |
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#endif |
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/* |
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* Program to output meta-files to X window system. |
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* |
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* cc -o Xmeta Xmeta.c Xplot.o plot.o mfio.o syscalls.o misc.o |
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* |
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* 2/26/86 |
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*/ |
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|
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#include "rtprocess.h" |
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#include "string.h" |
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#include "meta.h" |
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#include "plot.h" |
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|
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extern void init(char *name, char *geom); |
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|
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#define overlap(p,xmn,ymn,xmx,ymx) (ov((p)->xy[XMN],(p)->xy[XMX],xmn,xmx) \ |
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&&ov((p)->xy[YMN],(p)->xy[YMX],ymn,ymx)) |
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|
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#define ov(mn1,mx1,mn2,mx2) ((mn1)<(mx2)&&(mn2)<(mx1)) |
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|
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#define XCOM "pexpand +OCIsv -P %s" |
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|
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|
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char *progname; |
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|
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static short newpage = TRUE; |
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|
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static PLIST recording; |
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|
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int maxalloc = 0; /* no limit */ |
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|
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extern void pXFlush(void); |
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|
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|
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void |
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save(p) /* record primitive */ |
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PRIMITIVE *p; |
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{ |
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register PRIMITIVE *pnew; |
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|
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if ((pnew = palloc()) == NULL) |
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error(SYSTEM, "out of memory in save"); |
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mcopy((char *)pnew, (char *)p, sizeof(PRIMITIVE)); |
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add(pnew, &recording); |
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} |
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|
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|
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void |
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doglobal(g, sf) /* execute a global command */ |
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register PRIMITIVE *g; |
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int sf; |
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{ |
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|
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switch (g->com) { |
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|
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case PEOF: |
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return; |
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|
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case PDRAW: |
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pXFlush(); |
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break; |
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|
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case PEOP: |
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endpage(); |
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plfree(&recording); |
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set(SALL, NULL); |
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newpage = TRUE; |
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return; |
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|
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case PSET: |
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set(g->arg0, g->args); |
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break; |
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|
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case PUNSET: |
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unset(g->arg0); |
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break; |
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|
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case PRESET: |
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reset(g->arg0); |
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break; |
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|
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default: |
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sprintf(errmsg, "unknown command '%c' in doglobal", g->com); |
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error(WARNING, errmsg); |
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return; |
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} |
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if (sf) |
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save(g); |
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|
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} |
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|
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|
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void |
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doprim(p, sf) /* plot primitive */ |
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register PRIMITIVE *p; |
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int sf; |
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{ |
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|
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switch (p->com) { |
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|
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case PMSTR: |
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printstr(p); |
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break; |
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|
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case PLSEG: |
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plotlseg(p); |
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break; |
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|
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case PRFILL: |
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fillrect(p); |
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break; |
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|
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case PTFILL: |
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filltri(p); |
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break; |
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|
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case PPFILL: |
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fillpoly(p); |
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break; |
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|
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default: |
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sprintf(errmsg, "unknown command '%c' in doprim", p->com); |
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error(WARNING, errmsg); |
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return; |
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} |
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if (sf) { |
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save(p); |
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newpage = FALSE; |
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} |
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|
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} |
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|
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|
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void |
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plot(infp) /* plot meta-file */ |
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FILE *infp; |
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{ |
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PRIMITIVE nextp; |
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|
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set(SALL, NULL); |
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do { |
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readp(&nextp, infp); |
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while (isprim(nextp.com)) { |
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doprim(&nextp, 1); |
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readp(&nextp, infp); |
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} |
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doglobal(&nextp, 1); |
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} while (nextp.com != PEOF); |
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|
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} |
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|
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|
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void |
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replay(xmin, ymin, xmax, ymax) /* play back region */ |
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int xmin, ymin, xmax, ymax; |
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{ |
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register PRIMITIVE *p; |
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|
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unset(SALL); |
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set(SALL, NULL); |
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for (p = recording.ptop; p != NULL; p = p->pnext) |
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if (isprim(p->com)) { |
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if (overlap(p, xmin, ymin, xmax, ymax)) |
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doprim(p, 0); |
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} else |
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doglobal(p, 0); |
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|
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} |
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|
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|
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int |
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main(argc, argv) |
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int argc; |
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char **argv; |
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{ |
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FILE *fp; |
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char *geometry = NULL; |
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short condonly, conditioned; |
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char comargs[500], command[600]; |
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|
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progname = *argv++; |
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argc--; |
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|
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condonly = FALSE; |
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conditioned = FALSE; |
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|
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for ( ; argc; argv++, argc--) |
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if (!strcmp(*argv, "-c")) |
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condonly = TRUE; |
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else if (!strcmp(*argv, "-r")) |
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conditioned = TRUE; |
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else if (**argv == '=') |
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geometry = *argv; |
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else |
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break; |
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|
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if (conditioned) { |
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init(progname, geometry); |
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if (argc) |
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while (argc) { |
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fp = efopen(*argv, "r"); |
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plot(fp); |
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fclose(fp); |
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argv++; |
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argc--; |
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} |
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else |
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plot(stdin); |
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} else { |
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comargs[0] = '\0'; |
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while (argc) { |
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strcat(comargs, " "); |
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strcat(comargs, *argv); |
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argv++; |
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argc--; |
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} |
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sprintf(command, XCOM, comargs); |
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if (condonly) |
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return(system(command)); |
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else { |
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init(progname, geometry); |
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if ((fp = popen(command, "r")) == NULL) |
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error(SYSTEM, "cannot execute input filter"); |
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plot(fp); |
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pclose(fp); |
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} |
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} |
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|
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if (!newpage) |
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endpage(); |
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|
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return(0); |
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} |
