2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Edward Wang at The University of California, Berkeley.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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.
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
36 * @(#)wwsize.c 8.1 (Berkeley) 6/6/93
37 * $FreeBSD: src/usr.bin/window/wwsize.c,v 1.2.6.1 2001/05/17 09:45:01 obrien Exp $
38 * $DragonFly: src/usr.bin/window/wwsize.c,v 1.2 2003/06/17 04:29:34 dillon Exp $
45 * Resize a window. Should be unattached.
48 register struct ww *w;
52 union ww_char **buf = 0;
59 * First allocate new buffers.
61 win = wwalloc(w->ww_w.t, w->ww_w.l, nrow, ncol, sizeof (char));
64 if (w->ww_fmap != 0) {
65 fmap = wwalloc(w->ww_w.t, w->ww_w.l, nrow, ncol, sizeof (char));
69 if (nrow > w->ww_b.nr || ncol > w->ww_b.nc) {
70 nline = MAX(w->ww_b.nr, nrow);
71 buf = (union ww_char **) wwalloc(w->ww_b.t, w->ww_b.l,
72 nline, ncol, sizeof (union ww_char));
76 nvis = (short *)malloc((unsigned) nrow * sizeof (short));
88 b = w->ww_b.t + nline;
90 if (ncol < w->ww_b.nc)
91 for (i = w->ww_b.t; i < w->ww_b.b; i++)
92 for (j = w->ww_b.l; j < r; j++)
93 buf[i][j] = w->ww_buf[i][j];
95 for (i = w->ww_b.t; i < w->ww_b.b; i++) {
96 for (j = w->ww_b.l; j < w->ww_b.r; j++)
97 buf[i][j] = w->ww_buf[i][j];
102 for (j = w->ww_b.l; j < r; j++)
106 * Now free the old stuff.
108 wwfree((char **)w->ww_win, w->ww_w.t);
111 wwfree((char **)w->ww_buf, w->ww_b.t);
114 if (w->ww_fmap != 0) {
115 wwfree((char **)w->ww_fmap, w->ww_w.t);
118 free((char *)(w->ww_nvis + w->ww_w.t));
124 w->ww_w.b = w->ww_w.t + nrow;
125 w->ww_w.r = w->ww_w.l + ncol;
130 w->ww_b.b = w->ww_b.t + nline;
131 w->ww_b.r = w->ww_b.l + ncol;
136 if ((i = w->ww_b.b - w->ww_w.b) < 0 ||
137 (i = w->ww_cur.r - w->ww_w.b + 1) > 0) {
144 w->ww_i.b = MIN(w->ww_w.b, wwnrow);
145 w->ww_i.r = MIN(w->ww_w.r, wwncol);
146 w->ww_i.nr = w->ww_i.b - w->ww_i.t;
147 w->ww_i.nc = w->ww_i.r - w->ww_i.l;
149 * Initialize new buffers.
153 if (w->ww_oflags & WWO_GLASS)
155 if (w->ww_oflags & WWO_REVERSE)
157 for (i = w->ww_w.t; i < w->ww_w.b; i++)
158 for (j = w->ww_w.l; j < w->ww_w.r; j++)
162 for (i = w->ww_w.t; i < w->ww_w.b; i++)
163 for (j = w->ww_w.l; j < w->ww_w.r; j++)
164 w->ww_fmap[i][j] = 0;
166 j = m ? 0 : w->ww_w.nc;
167 for (i = w->ww_w.t; i < w->ww_w.b; i++)
172 if (w->ww_hascursor) {
179 if (w->ww_ispty && w->ww_pty >= 0)
180 (void) wwsetttysize(w->ww_pty, nrow, ncol);
184 wwfree(win, w->ww_w.t);
186 wwfree(fmap, w->ww_w.t);
188 wwfree((char **)buf, w->ww_b.t);
190 free((char *)(nvis + w->ww_w.t));