usr/src/usr.bin/window/wwbox.c

/*
 * Copyright (c) 1983 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by the University of California, Berkeley.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

#ifndef lint
static char sccsid[] = "@(#)wwbox.c     3.6 (Berkeley) %G%";
#endif /* not lint */

#include "ww.h"
#include "tt.h"

wwbox(w, r, c, nr, nc)
register struct ww *w;
register r, c;
int nr, nc;
{
        register r1, c1;
        register i;

        r1 = r + nr - 1;
        c1 = c + nc - 1;
        wwframec(w, r, c, WWF_D|WWF_R);
        for (i = c + 1; i < c1; i++)
                wwframec(w, r, i, WWF_L|WWF_R);
        wwframec(w, r, i, WWF_L|WWF_D);
        for (i = r + 1; i < r1; i++)
                wwframec(w, i, c1, WWF_U|WWF_D);
        wwframec(w, i, c1, WWF_U|WWF_L);
        for (i = c1 - 1; i > c; i--)
                wwframec(w, r1, i, WWF_R|WWF_L);
        wwframec(w, r1, i, WWF_R|WWF_U);
        for (i = r1 - 1; i > r; i--)
                wwframec(w, i, c, WWF_D|WWF_U);
}