1 #include	<stdio.h>
2 #include	"pic.h"
3 #include	"y.tab.h"
4 
5 obj*
6 boxgen(void)
7 {
8 	static double prevh = HT;
9 	static double prevw = WID;	/* golden mean, sort of */
10 	int i, at, battr, with;
11 	double ddval, fillval, xwith, ywith;
12 	double h, w, x0, y0, x1, y1;
13 	obj *p, *ppos;
14 	Attr *ap;
15 
16 	h = getfval("boxht");
17 	w = getfval("boxwid");
18 	at = battr = with = 0;
19 	ddval = fillval = xwith = ywith = 0;
20 	for (i = 0; i < nattr; i++) {
21 		ap = &attr[i];
22 		switch (ap->a_type) {
23 		case HEIGHT:
24 			h = ap->a_val.f;
25 			break;
26 		case WIDTH:
27 			w = ap->a_val.f;
28 			break;
29 		case SAME:
30 			h = prevh;
31 			w = prevw;
32 			break;
33 		case WITH:
34 			with = ap->a_val.i;	/* corner */
35 			break;
36 		case AT:
37 			ppos = ap->a_val.o;
38 			curx = ppos->o_x;
39 			cury = ppos->o_y;
40 			at++;
41 			break;
42 		case INVIS:
43 			battr |= INVIS;
44 			break;
45 		case DOT:
46 		case DASH:
47 			battr |= ap->a_type==DOT ? DOTBIT : DASHBIT;
48 			if (ap->a_sub == DEFAULT)
49 				ddval = getfval("dashwid");
50 			else
51 				ddval = ap->a_val.f;
52 			break;
53 		case FILL:
54 			battr |= FILLBIT;
55 			if (ap->a_sub == DEFAULT)
56 				fillval = getfval("fillval");
57 			else
58 				fillval = ap->a_val.f;
59 			break;
60 		case TEXTATTR:
61 			savetext(ap->a_sub, ap->a_val.p);
62 			break;
63 		}
64 	}
65 	if (with) {
66 		switch (with) {
67 		case NORTH:	ywith = -h / 2; break;
68 		case SOUTH:	ywith = h / 2; break;
69 		case EAST:	xwith = -w / 2; break;
70 		case WEST:	xwith = w / 2; break;
71 		case NE:	xwith = -w / 2; ywith = -h / 2; break;
72 		case SE:	xwith = -w / 2; ywith = h / 2; break;
73 		case NW:	xwith = w / 2; ywith = -h / 2; break;
74 		case SW:	xwith = w / 2; ywith = h / 2; break;
75 		}
76 		curx += xwith;
77 		cury += ywith;
78 	}
79 	if (!at) {
80 		if (isright(hvmode))
81 			curx += w / 2;
82 		else if (isleft(hvmode))
83 			curx -= w / 2;
84 		else if (isup(hvmode))
85 			cury += h / 2;
86 		else
87 			cury -= h / 2;
88 	}
89 	x0 = curx - w / 2;
90 	y0 = cury - h / 2;
91 	x1 = curx + w / 2;
92 	y1 = cury + h / 2;
93 	extreme(x0, y0);
94 	extreme(x1, y1);
95 	p = makenode(BOX, 2);
96 	p->o_val[0] = w;
97 	p->o_val[1] = h;
98 	p->o_attr = battr;
99 	p->o_ddval = ddval;
100 	p->o_fillval = fillval;
101 	dprintf("B %g %g %g %g at %g %g, h=%g, w=%g\n", x0, y0, x1, y1, curx, cury, h, w);
102 	if (isright(hvmode))
103 		curx = x1;
104 	else if (isleft(hvmode))
105 		curx = x0;
106 	else if (isup(hvmode))
107 		cury = y1;
108 	else
109 		cury = y0;
110 	prevh = h;
111 	prevw = w;
112 	return(p);
113 }