1 3ebbd193 2017-06-19 rsc #include	<stdio.h>
  2 3ebbd193 2017-06-19 rsc #include	"pic.h"
  3 3ebbd193 2017-06-19 rsc #include	"y.tab.h"
  4 3ebbd193 2017-06-19 rsc 
  5 3ebbd193 2017-06-19 rsc obj *textgen(void)
  6 3ebbd193 2017-06-19 rsc {
  7 3ebbd193 2017-06-19 rsc 	int i, sub, nstr, at, with, hset, invis;
  8 3ebbd193 2017-06-19 rsc 	double xwith, ywith, h, w, x0, y0, x1, y1;
  9 3ebbd193 2017-06-19 rsc 	obj *p, *ppos;
 10 3ebbd193 2017-06-19 rsc 	Attr *ap;
 11 3ebbd193 2017-06-19 rsc 
 12 3ebbd193 2017-06-19 rsc 	at = with = nstr = hset = invis = 0;
 13 3ebbd193 2017-06-19 rsc 	h = getfval("textht");
 14 3ebbd193 2017-06-19 rsc 	w = getfval("textwid");
 15 3ebbd193 2017-06-19 rsc 	for (i = 0; i < nattr; i++) {
 16 3ebbd193 2017-06-19 rsc 		ap = &attr[i];
 17 3ebbd193 2017-06-19 rsc 		switch (ap->a_type) {
 18 3ebbd193 2017-06-19 rsc 		case HEIGHT:
 19 3ebbd193 2017-06-19 rsc 			h = ap->a_val.f;
 20 3ebbd193 2017-06-19 rsc 			hset++;
 21 3ebbd193 2017-06-19 rsc 			break;
 22 3ebbd193 2017-06-19 rsc 		case WIDTH:
 23 3ebbd193 2017-06-19 rsc 			w = ap->a_val.f;
 24 3ebbd193 2017-06-19 rsc 			break;
 25 3ebbd193 2017-06-19 rsc 		case WITH:
 26 3ebbd193 2017-06-19 rsc 			with = ap->a_val.i;
 27 3ebbd193 2017-06-19 rsc 			break;
 28 3ebbd193 2017-06-19 rsc 		case INVIS:
 29 3ebbd193 2017-06-19 rsc 			invis = INVIS;
 30 3ebbd193 2017-06-19 rsc 			break;
 31 3ebbd193 2017-06-19 rsc 		case AT:
 32 3ebbd193 2017-06-19 rsc 			ppos = ap->a_val.o;
 33 3ebbd193 2017-06-19 rsc 			curx = ppos->o_x;
 34 3ebbd193 2017-06-19 rsc 			cury = ppos->o_y;
 35 3ebbd193 2017-06-19 rsc 			at++;
 36 3ebbd193 2017-06-19 rsc 			break;
 37 3ebbd193 2017-06-19 rsc 		case TEXTATTR:
 38 3ebbd193 2017-06-19 rsc 			sub = ap->a_sub;
 39 3ebbd193 2017-06-19 rsc 			if (ap->a_val.p == NULL)	/* an isolated modifier */
 40 3ebbd193 2017-06-19 rsc 				text[ntext-1].t_type = sub;
 41 3ebbd193 2017-06-19 rsc 			else {
 42 3ebbd193 2017-06-19 rsc 				savetext(sub, ap->a_val.p);
 43 3ebbd193 2017-06-19 rsc 				nstr++;
 44 3ebbd193 2017-06-19 rsc 			}
 45 3ebbd193 2017-06-19 rsc 			break;
 46 3ebbd193 2017-06-19 rsc 		}
 47 3ebbd193 2017-06-19 rsc 	}
 48 3ebbd193 2017-06-19 rsc 	if (hset == 0)		/* no explicit ht cmd */
 49 3ebbd193 2017-06-19 rsc 		h *= nstr;
 50 3ebbd193 2017-06-19 rsc 	if (with) {
 51 3ebbd193 2017-06-19 rsc 		xwith = ywith = 0.0;
 52 3ebbd193 2017-06-19 rsc 		switch (with) {
 53 3ebbd193 2017-06-19 rsc 		case NORTH:	ywith = -h / 2; break;
 54 3ebbd193 2017-06-19 rsc 		case SOUTH:	ywith = h / 2; break;
 55 3ebbd193 2017-06-19 rsc 		case EAST:	xwith = -w / 2; break;
 56 3ebbd193 2017-06-19 rsc 		case WEST:	xwith = w / 2; break;
 57 3ebbd193 2017-06-19 rsc 		case NE:	xwith = -w / 2; ywith = -h / 2; break;
 58 3ebbd193 2017-06-19 rsc 		case SE:	xwith = -w / 2; ywith = h / 2; break;
 59 3ebbd193 2017-06-19 rsc 		case NW:	xwith = w / 2; ywith = -h / 2; break;
 60 3ebbd193 2017-06-19 rsc 		case SW:	xwith = w / 2; ywith = h / 2; break;
 61 3ebbd193 2017-06-19 rsc 		}
 62 3ebbd193 2017-06-19 rsc 		curx += xwith;
 63 3ebbd193 2017-06-19 rsc 		cury += ywith;
 64 3ebbd193 2017-06-19 rsc 	}
 65 3ebbd193 2017-06-19 rsc 	if (!at) {
 66 3ebbd193 2017-06-19 rsc 		if (isright(hvmode))
 67 3ebbd193 2017-06-19 rsc 			curx += w / 2;
 68 3ebbd193 2017-06-19 rsc 		else if (isleft(hvmode))
 69 3ebbd193 2017-06-19 rsc 			curx -= w / 2;
 70 3ebbd193 2017-06-19 rsc 		else if (isup(hvmode))
 71 3ebbd193 2017-06-19 rsc 			cury += h / 2;
 72 3ebbd193 2017-06-19 rsc 		else
 73 3ebbd193 2017-06-19 rsc 			cury -= h / 2;
 74 3ebbd193 2017-06-19 rsc 	}
 75 3ebbd193 2017-06-19 rsc 	x0 = curx - w / 2;
 76 3ebbd193 2017-06-19 rsc 	y0 = cury - h / 2;
 77 3ebbd193 2017-06-19 rsc 	x1 = curx + w / 2;
 78 3ebbd193 2017-06-19 rsc 	y1 = cury + h / 2;
 79 3ebbd193 2017-06-19 rsc 	extreme(x0, y0);
 80 3ebbd193 2017-06-19 rsc 	extreme(x1, y1);
 81 3ebbd193 2017-06-19 rsc 	dprintf("Text h %g w %g at %g,%g\n", h, w, curx, cury);
 82 3ebbd193 2017-06-19 rsc 	p = makenode(TEXT, 2);
 83 3ebbd193 2017-06-19 rsc 	p->o_attr = invis;
 84 3ebbd193 2017-06-19 rsc 	p->o_val[0] = w;
 85 3ebbd193 2017-06-19 rsc 	p->o_val[1] = h;
 86 3ebbd193 2017-06-19 rsc 	if (isright(hvmode))
 87 3ebbd193 2017-06-19 rsc 		curx = x1;
 88 3ebbd193 2017-06-19 rsc 	else if (isleft(hvmode))
 89 3ebbd193 2017-06-19 rsc 		curx = x0;
 90 3ebbd193 2017-06-19 rsc 	else if (isup(hvmode))
 91 3ebbd193 2017-06-19 rsc 		cury = y1;
 92 3ebbd193 2017-06-19 rsc 	else
 93 3ebbd193 2017-06-19 rsc 		cury = y0;
 94 3ebbd193 2017-06-19 rsc 	return(p);
 95 3ebbd193 2017-06-19 rsc }
 96 3ebbd193 2017-06-19 rsc 
 97 3ebbd193 2017-06-19 rsc obj *troffgen(char *s)	/* save away a string of troff commands */
 98 3ebbd193 2017-06-19 rsc {
 99 3ebbd193 2017-06-19 rsc 	savetext(CENTER, s);	/* use the existing text mechanism */
100 3ebbd193 2017-06-19 rsc 	return makenode(TROFF, 0);
101 3ebbd193 2017-06-19 rsc }
102 3ebbd193 2017-06-19 rsc 
103 3ebbd193 2017-06-19 rsc void savetext(int t, char *s)	/* record text elements for current object */
104 3ebbd193 2017-06-19 rsc {
105 3ebbd193 2017-06-19 rsc 	if (ntext >= ntextlist)
106 3ebbd193 2017-06-19 rsc 		text = (Text *) grow((char *) text, "text", ntextlist += 200, sizeof(Text));
107 3ebbd193 2017-06-19 rsc 	text[ntext].t_type = t;
108 3ebbd193 2017-06-19 rsc 	text[ntext].t_val = s;
109 3ebbd193 2017-06-19 rsc 	dprintf("saving %d text %s at %d\n", t, s, ntext);
110 3ebbd193 2017-06-19 rsc 	ntext++;
111 3ebbd193 2017-06-19 rsc }