-static void
-ps_chart_initialise (struct outp_driver *this UNUSED, struct chart *ch)
-{
-#ifdef NO_CHARTS
- ch->lp = NULL;
-#else
- struct ps_driver_ext *x = this->ext;
- char page_size[128];
- int size;
- int x_origin, y_origin;
-
- ch->file = tmpfile ();
- if (ch->file == NULL)
- {
- ch->lp = NULL;
- return;
- }
-
- size = this->width < this->length ? this->width : this->length;
- x_origin = x->left_margin + (size - this->width) / 2;
- y_origin = x->bottom_margin + (size - this->length) / 2;
-
- snprintf (page_size, sizeof page_size,
- "a,xsize=%.3f,ysize=%.3f,xorigin=%.3f,yorigin=%.3f",
- (double) size / PSUS, (double) size / PSUS,
- (double) x_origin / PSUS, (double) y_origin / PSUS);
-
- ch->pl_params = pl_newplparams ();
- pl_setplparam (ch->pl_params, "PAGESIZE", page_size);
- ch->lp = pl_newpl_r ("ps", NULL, ch->file, stderr, ch->pl_params);
-#endif
-}
-
-static void
-ps_chart_finalise (struct outp_driver *this UNUSED, struct chart *ch UNUSED)
-{
-#ifndef NO_CHARTS
- struct ps_driver_ext *x = this->ext;
- char buf[BUFSIZ];
- static int doc_num = 0;
-
- outp_eject_page (this);
- fprintf (x->file,
- "/sp save def\n"
- "%d %d translate 1000 dup scale\n"
- "userdict begin\n"
- "/showpage { } def\n"
- "0 setgray 0 setlinecap 1 setlinewidth\n"
- "0 setlinejoin 10 setmiterlimit [ ] 0 setdash newpath clear\n"
- "%%%%BeginDocument: %d\n",
- -x->left_margin, -x->bottom_margin,
- doc_num++);
-
- rewind (ch->file);
- while (fwrite (buf, 1, fread (buf, 1, sizeof buf, ch->file), x->file))
- continue;
- fclose (ch->file);
-
- fputs ("%%%%EndDocument\n"
- "end\n"
- "sp restore\n",
- x->file);
- outp_close_page (this);
-#endif
-}
-\f