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