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/* $NetBSD: wwmove.c,v 1.4 1996/02/08 21:49:14 mycroft Exp $ */
/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Edward Wang at The University of California, Berkeley.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
#if 0
static char sccsid[] = "@(#)wwmove.c 8.1 (Berkeley) 6/6/93";
#else
static char rcsid[] = "$NetBSD: wwmove.c,v 1.4 1996/02/08 21:49:14 mycroft Exp $";
#endif
#endif /* not lint */
#include "ww.h"
/*
* Move a window. Should be unattached.
*/
wwmove(w, row, col)
register struct ww *w;
{
register dr, dc;
register i;
dr = row - w->ww_w.t;
dc = col - w->ww_w.l;
w->ww_w.t += dr;
w->ww_w.b += dr;
w->ww_w.l += dc;
w->ww_w.r += dc;
w->ww_b.t += dr;
w->ww_b.b += dr;
w->ww_b.l += dc;
w->ww_b.r += dc;
w->ww_i.t = MAX(w->ww_w.t, 0);
w->ww_i.b = MIN(w->ww_w.b, wwnrow);
w->ww_i.nr = w->ww_i.b - w->ww_i.t;
w->ww_i.l = MAX(w->ww_w.l, 0);
w->ww_i.r = MIN(w->ww_w.r, wwncol);
w->ww_i.nc = w->ww_i.r - w->ww_i.l;
w->ww_cur.r += dr;
w->ww_cur.c += dc;
w->ww_win -= dr;
for (i = w->ww_w.t; i < w->ww_w.b; i++)
w->ww_win[i] -= dc;
if (w->ww_fmap != 0) {
w->ww_fmap -= dr;
for (i = w->ww_w.t; i < w->ww_w.b; i++)
w->ww_fmap[i] -= dc;
}
w->ww_nvis -= dr;
for (i = w->ww_i.t; i < w->ww_i.b; i++) {
register j = w->ww_i.l;
register char *win = &w->ww_win[i][j];
register unsigned char *smap = &wwsmap[i][j];
int nvis = 0;
for (; j < w->ww_i.r; j++, win++, smap++)
if (*win == 0 && *smap == w->ww_index)
nvis++;
w->ww_nvis[i] = nvis;
}
w->ww_buf -= dr;
for (i = w->ww_b.t; i < w->ww_b.b; i++)
w->ww_buf[i] -= dc;
}
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