tboxgen.c - plan9port - [fork] Plan 9 from user space
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tboxgen.c (2309B)
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1 #include <stdio.h>
2 #include "pic.h"
3 #include "y.tab.h"
4
5 obj *boxgen(void)
6 {
7 static double prevh = HT;
8 static double prevw = WID; /* golden mean, sort of */
9 int i, at, battr, with;
10 double ddval, fillval, xwith, ywith;
11 double h, w, x0, y0, x1, y1;
12 obj *p, *ppos;
13 Attr *ap;
14
15 h = getfval("boxht");
16 w = getfval("boxwid");
17 at = battr = with = 0;
18 ddval = fillval = xwith = ywith = 0;
19 for (i = 0; i < nattr; i++) {
20 ap = &attr[i];
21 switch (ap->a_type) {
22 case HEIGHT:
23 h = ap->a_val.f;
24 break;
25 case WIDTH:
26 w = ap->a_val.f;
27 break;
28 case SAME:
29 h = prevh;
30 w = prevw;
31 break;
32 case WITH:
33 with = ap->a_val.i; /* corner */
34 break;
35 case AT:
36 ppos = ap->a_val.o;
37 curx = ppos->o_x;
38 cury = ppos->o_y;
39 at++;
40 break;
41 case INVIS:
42 battr |= INVIS;
43 break;
44 case NOEDGE:
45 battr |= NOEDGEBIT;
46 break;
47 case DOT:
48 case DASH:
49 battr |= ap->a_type==DOT ? DOTBIT : DASHBIT;
50 if (ap->a_sub == DEFAULT)
51 ddval = getfval("dashwid");
52 else
53 ddval = ap->a_val.f;
54 break;
55 case FILL:
56 battr |= FILLBIT;
57 if (ap->a_sub == DEFAULT)
58 fillval = getfval("fillval");
59 else
60 fillval = ap->a_val.f;
61 break;
62 case TEXTATTR:
63 savetext(ap->a_sub, ap->a_val.p);
64 break;
65 }
66 }
67 if (with) {
68 switch (with) {
69 case NORTH: ywith = -h / 2; break;
70 case SOUTH: ywith = h / 2; break;
71 case EAST: xwith = -w / 2; break;
72 case WEST: xwith = w / 2; break;
73 case NE: xwith = -w / 2; ywith = -h / 2; break;
74 case SE: xwith = -w / 2; ywith = h / 2; break;
75 case NW: xwith = w / 2; ywith = -h / 2; break;
76 case SW: xwith = w / 2; ywith = h / 2; break;
77 }
78 curx += xwith;
79 cury += ywith;
80 }
81 if (!at) {
82 if (isright(hvmode))
83 curx += w / 2;
84 else if (isleft(hvmode))
85 curx -= w / 2;
86 else if (isup(hvmode))
87 cury += h / 2;
88 else
89 cury -= h / 2;
90 }
91 x0 = curx - w / 2;
92 y0 = cury - h / 2;
93 x1 = curx + w / 2;
94 y1 = cury + h / 2;
95 extreme(x0, y0);
96 extreme(x1, y1);
97 p = makenode(BOX, 2);
98 p->o_val[0] = w;
99 p->o_val[1] = h;
100 p->o_attr = battr;
101 p->o_ddval = ddval;
102 p->o_fillval = fillval;
103 dprintf("B %g %g %g %g at %g %g, h=%g, w=%g\n", x0, y0, x1, y1, curx, cury, h, w);
104 if (isright(hvmode))
105 curx = x1;
106 else if (isleft(hvmode))
107 curx = x0;
108 else if (isup(hvmode))
109 cury = y1;
110 else
111 cury = y0;
112 prevh = h;
113 prevw = w;
114 return(p);
115 }