Subversion Repositories planix.SVN

#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);
}