Subversion Repositories planix.SVN

#include        <stdio.h>
#include        "pic.h"
#include        "y.tab.h"

obj *circgen(int type)
{
        static double rad[2] = { HT2, WID2 };
        static double rad2[2] = { HT2, HT2 };
        int i, at, t, with, battr;
        double xwith, ywith;
        double r, r2, ddval, fillval;
        obj *p, *ppos;
        Attr *ap;

        battr = at = 0;
        with = xwith = ywith = fillval = ddval = 0;
        t = (type == CIRCLE) ? 0 : 1;
        if (type == CIRCLE)
                r = r2 = getfval("circlerad");
        else if (type == ELLIPSE) {
                r = getfval("ellipsewid") / 2;
                r2 = getfval("ellipseht") / 2;
        }
        for (i = 0; i < nattr; i++) {
                ap = &attr[i];
                switch (ap->a_type) {
                case TEXTATTR:
                        savetext(ap->a_sub, ap->a_val.p);
                        break;
                case RADIUS:
                        r = ap->a_val.f;
                        break;
                case DIAMETER:
                case WIDTH:
                        r = ap->a_val.f / 2;
                        break;
                case HEIGHT:
                        r2 = ap->a_val.f / 2;
                        break;
                case SAME:
                        r = rad[t];
                        r2 = rad2[t];
                        break;
                case WITH:
                        with = ap->a_val.i;
                        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;
                }
        }
        if (type == CIRCLE)
                r2 = r; /* probably superfluous */
        if (with) {
                switch (with) {
                case NORTH:     ywith = -r2; break;
                case SOUTH:     ywith = r2; break;
                case EAST:      xwith = -r; break;
                case WEST:      xwith = r; break;
                case NE:        xwith = -r * 0.707; ywith = -r2 * 0.707; break;
                case SE:        xwith = -r * 0.707; ywith = r2 * 0.707; break;
                case NW:        xwith = r * 0.707; ywith = -r2 * 0.707; break;
                case SW:        xwith = r * 0.707; ywith = r2 * 0.707; break;
                }
                curx += xwith;
                cury += ywith;
        }
        if (!at) {
                if (isright(hvmode))
                        curx += r;
                else if (isleft(hvmode))
                        curx -= r;
                else if (isup(hvmode))
                        cury += r2;
                else
                        cury -= r2;
        }
        p = makenode(type, 2);
        p->o_val[0] = rad[t] = r;
        p->o_val[1] = rad2[t] = r2;
        if (r <= 0 || r2 <= 0) {
                ERROR "%s has invalid radius %g\n", (type==CIRCLE) ? "circle" : "ellipse", r<r2 ? r : r2 WARNING;
        }
        p->o_attr = battr;
        p->o_ddval = ddval;
        p->o_fillval = fillval;
        extreme(curx+r, cury+r2);
        extreme(curx-r, cury-r2);
        if (type == CIRCLE)
                dprintf("C %g %g %g\n", curx, cury, r);
        if (type == ELLIPSE)
                dprintf("E %g %g %g %g\n", curx, cury, r, r2);
        if (isright(hvmode))
                curx += r;
        else if (isleft(hvmode))
                curx -= r;
        else if (isup(hvmode))
                cury += r2;
        else
                cury -= r2;
        return(p);
}