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- #include <stdio.h>
- #include "pic.h"
- #include "y.tab.h"
- obj *boxgen(void)
- {
- static double prevh = HT;
- static double prevw = WID; /* golden mean, sort of */
- int i, at, battr, with;
- double ddval, fillval, xwith, ywith;
- double h, w, x0, y0, x1, y1;
- obj *p, *ppos;
- Attr *ap;
- h = getfval("boxht");
- w = getfval("boxwid");
- at = battr = with = 0;
- ddval = fillval = xwith = ywith = 0;
- for (i = 0; i < nattr; i++) {
- ap = &attr[i];
- switch (ap->a_type) {
- case HEIGHT:
- h = ap->a_val.f;
- break;
- case WIDTH:
- w = ap->a_val.f;
- break;
- case SAME:
- h = prevh;
- w = prevw;
- break;
- case WITH:
- with = ap->a_val.i; /* corner */
- break;
- case AT:
- ppos = ap->a_val.o;
- curx = ppos->o_x;
- cury = ppos->o_y;
- at++;
- break;
- case INVIS:
- battr |= INVIS;
- break;
- case NOEDGE:
- battr |= NOEDGEBIT;
- break;
- case DOT:
- case DASH:
- battr |= ap->a_type==DOT ? DOTBIT : DASHBIT;
- if (ap->a_sub == DEFAULT)
- ddval = getfval("dashwid");
- else
- ddval = ap->a_val.f;
- break;
- case FILL:
- battr |= FILLBIT;
- if (ap->a_sub == DEFAULT)
- fillval = getfval("fillval");
- else
- fillval = ap->a_val.f;
- break;
- case TEXTATTR:
- savetext(ap->a_sub, ap->a_val.p);
- break;
- }
- }
- if (with) {
- switch (with) {
- case NORTH: ywith = -h / 2; break;
- case SOUTH: ywith = h / 2; break;
- case EAST: xwith = -w / 2; break;
- case WEST: xwith = w / 2; break;
- case NE: xwith = -w / 2; ywith = -h / 2; break;
- case SE: xwith = -w / 2; ywith = h / 2; break;
- case NW: xwith = w / 2; ywith = -h / 2; break;
- case SW: xwith = w / 2; ywith = h / 2; break;
- }
- curx += xwith;
- cury += ywith;
- }
- if (!at) {
- if (isright(hvmode))
- curx += w / 2;
- else if (isleft(hvmode))
- curx -= w / 2;
- else if (isup(hvmode))
- cury += h / 2;
- else
- cury -= h / 2;
- }
- x0 = curx - w / 2;
- y0 = cury - h / 2;
- x1 = curx + w / 2;
- y1 = cury + h / 2;
- extreme(x0, y0);
- extreme(x1, y1);
- p = makenode(BOX, 2);
- p->o_val[0] = w;
- p->o_val[1] = h;
- p->o_attr = battr;
- p->o_ddval = ddval;
- p->o_fillval = fillval;
- dprintf("B %g %g %g %g at %g %g, h=%g, w=%g\n", x0, y0, x1, y1, curx, cury, h, w);
- if (isright(hvmode))
- curx = x1;
- else if (isleft(hvmode))
- curx = x0;
- else if (isup(hvmode))
- cury = y1;
- else
- cury = y0;
- prevh = h;
- prevw = w;
- return(p);
- }
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