usr.bin/window/wwbox.c

   1 /*
   2  * Copyright (c) 1983, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * This code is derived from software contributed to Berkeley by
   6  * Edward Wang at The University of California, Berkeley.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. All advertising materials mentioning features or use of this software
  17  *    must display the following acknowledgement:
  18  *      This product includes software developed by the University of
  19  *      California, Berkeley and its contributors.
  20  * 4. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  *
  36  * @(#)wwbox.c  8.1 (Berkeley) 6/6/93
  37  * $FreeBSD: src/usr.bin/window/wwbox.c,v 1.1.1.1.14.1 2001/05/17 09:45:01 obrien Exp $
  38  * $DragonFly: src/usr.bin/window/wwbox.c,v 1.2 2003/06/17 04:29:34 dillon Exp $
  39  */
  40
  41 #include "ww.h"
  42 #include "tt.h"
  43
  44 wwbox(w, r, c, nr, nc)
  45 register struct ww *w;
  46 register r, c;
  47 int nr, nc;
  48 {
  49         register r1, c1;
  50         register i;
  51
  52         r1 = r + nr - 1;
  53         c1 = c + nc - 1;
  54         wwframec(w, r, c, WWF_D|WWF_R);
  55         for (i = c + 1; i < c1; i++)
  56                 wwframec(w, r, i, WWF_L|WWF_R);
  57         wwframec(w, r, i, WWF_L|WWF_D);
  58         for (i = r + 1; i < r1; i++)
  59                 wwframec(w, i, c1, WWF_U|WWF_D);
  60         wwframec(w, i, c1, WWF_U|WWF_L);
  61         for (i = c1 - 1; i > c; i--)
  62                 wwframec(w, r1, i, WWF_R|WWF_L);
  63         wwframec(w, r1, i, WWF_R|WWF_U);
  64         for (i = r1 - 1; i > r; i--)
  65                 wwframec(w, i, c, WWF_D|WWF_U);
  66 }