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Annotation of src/usr.bin/window/wwmove.c, Revision 1.6

1.6     ! millert     1: /*     $OpenBSD: wwmove.c,v 1.5 2001/11/19 19:02:18 mpech Exp $        */
1.2       niklas      2: /*     $NetBSD: wwmove.c,v 1.4 1996/02/08 21:49:14 mycroft Exp $       */
1.1       deraadt     3:
                      4: /*
                      5:  * Copyright (c) 1983, 1993
                      6:  *     The Regents of the University of California.  All rights reserved.
                      7:  *
                      8:  * This code is derived from software contributed to Berkeley by
                      9:  * Edward Wang at The University of California, Berkeley.
                     10:  *
                     11:  * Redistribution and use in source and binary forms, with or without
                     12:  * modification, are permitted provided that the following conditions
                     13:  * are met:
                     14:  * 1. Redistributions of source code must retain the above copyright
                     15:  *    notice, this list of conditions and the following disclaimer.
                     16:  * 2. Redistributions in binary form must reproduce the above copyright
                     17:  *    notice, this list of conditions and the following disclaimer in the
                     18:  *    documentation and/or other materials provided with the distribution.
1.6     ! millert    19:  * 3. Neither the name of the University nor the names of its contributors
1.1       deraadt    20:  *    may be used to endorse or promote products derived from this software
                     21:  *    without specific prior written permission.
                     22:  *
                     23:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     24:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     25:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     26:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     27:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     28:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     29:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     30:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     31:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     32:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     33:  * SUCH DAMAGE.
                     34:  */
                     35:
                     36: #ifndef lint
                     37: #if 0
                     38: static char sccsid[] = "@(#)wwmove.c   8.1 (Berkeley) 6/6/93";
                     39: #else
1.6     ! millert    40: static char rcsid[] = "$OpenBSD: wwmove.c,v 1.5 2001/11/19 19:02:18 mpech Exp $";
1.1       deraadt    41: #endif
                     42: #endif /* not lint */
                     43:
                     44: #include "ww.h"
                     45:
                     46: /*
                     47:  * Move a window.  Should be unattached.
                     48:  */
                     49: wwmove(w, row, col)
1.5       mpech      50: struct ww *w;
1.1       deraadt    51: {
1.5       mpech      52:        int dr, dc;
                     53:        int i;
1.1       deraadt    54:
                     55:        dr = row - w->ww_w.t;
                     56:        dc = col - w->ww_w.l;
                     57:
                     58:        w->ww_w.t += dr;
                     59:        w->ww_w.b += dr;
                     60:        w->ww_w.l += dc;
                     61:        w->ww_w.r += dc;
                     62:
                     63:        w->ww_b.t += dr;
                     64:        w->ww_b.b += dr;
                     65:        w->ww_b.l += dc;
                     66:        w->ww_b.r += dc;
                     67:
                     68:        w->ww_i.t = MAX(w->ww_w.t, 0);
                     69:        w->ww_i.b = MIN(w->ww_w.b, wwnrow);
                     70:        w->ww_i.nr = w->ww_i.b - w->ww_i.t;
                     71:        w->ww_i.l = MAX(w->ww_w.l, 0);
                     72:        w->ww_i.r = MIN(w->ww_w.r, wwncol);
                     73:        w->ww_i.nc = w->ww_i.r - w->ww_i.l;
                     74:
                     75:        w->ww_cur.r += dr;
                     76:        w->ww_cur.c += dc;
                     77:
                     78:        w->ww_win -= dr;
                     79:        for (i = w->ww_w.t; i < w->ww_w.b; i++)
                     80:                w->ww_win[i] -= dc;
                     81:        if (w->ww_fmap != 0) {
                     82:                w->ww_fmap -= dr;
                     83:                for (i = w->ww_w.t; i < w->ww_w.b; i++)
                     84:                        w->ww_fmap[i] -= dc;
                     85:        }
                     86:        w->ww_nvis -= dr;
                     87:        for (i = w->ww_i.t; i < w->ww_i.b; i++) {
1.5       mpech      88:                int j = w->ww_i.l;
                     89:                char *win = &w->ww_win[i][j];
                     90:                unsigned char *smap = &wwsmap[i][j];
1.1       deraadt    91:                int nvis = 0;
                     92:
                     93:                for (; j < w->ww_i.r; j++, win++, smap++)
                     94:                        if (*win == 0 && *smap == w->ww_index)
                     95:                                nvis++;
                     96:                w->ww_nvis[i] = nvis;
                     97:        }
                     98:        w->ww_buf -= dr;
                     99:        for (i = w->ww_b.t; i < w->ww_b.b; i++)
                    100:                w->ww_buf[i] -= dc;
                    101: }