1 /* $NetBSD: wwsize.c,v 1.9 2006/05/02 22:24:05 christos Exp $ */
4 * Copyright (c) 1983, 1993
5 * The Regents of the University of California. All rights reserved.
7 * This code is derived from software contributed to Berkeley by
8 * Edward Wang at The University of California, Berkeley.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 #include <sys/cdefs.h>
38 static char sccsid[] = "@(#)wwsize.c 8.1 (Berkeley) 6/6/93";
40 __RCSID("$NetBSD: wwsize.c,v 1.9 2006/05/02 22:24:05 christos Exp $");
48 * Resize a window. Should be unattached.
51 wwsize(struct ww *w, int nrow, int ncol)
55 union ww_char **buf = 0;
62 * First allocate new buffers.
64 win = wwalloc(w->ww_w.t, w->ww_w.l, nrow, ncol, sizeof (char));
67 if (w->ww_fmap != 0) {
68 fmap = wwalloc(w->ww_w.t, w->ww_w.l, nrow, ncol, sizeof (char));
72 if (nrow > w->ww_b.nr || ncol > w->ww_b.nc) {
73 nline = MAX(w->ww_b.nr, nrow);
74 buf = (union ww_char **) wwalloc(w->ww_b.t, w->ww_b.l,
75 nline, ncol, sizeof (union ww_char));
79 nvis = (short *)malloc((unsigned) nrow * sizeof (short));
91 b = w->ww_b.t + nline;
93 if (ncol < w->ww_b.nc)
94 for (i = w->ww_b.t; i < w->ww_b.b; i++)
95 for (j = w->ww_b.l; j < r; j++)
96 buf[i][j] = w->ww_buf[i][j];
98 for (i = w->ww_b.t; i < w->ww_b.b; i++) {
99 for (j = w->ww_b.l; j < w->ww_b.r; j++)
100 buf[i][j] = w->ww_buf[i][j];
105 for (j = w->ww_b.l; j < r; j++)
109 * Now free the old stuff.
111 wwfree((char **)w->ww_win, w->ww_w.t);
114 wwfree((char **)w->ww_buf, w->ww_b.t);
117 if (w->ww_fmap != 0) {
118 wwfree((char **)w->ww_fmap, w->ww_w.t);
121 free((char *)(w->ww_nvis + w->ww_w.t));
127 w->ww_w.b = w->ww_w.t + nrow;
128 w->ww_w.r = w->ww_w.l + ncol;
133 w->ww_b.b = w->ww_b.t + nline;
134 w->ww_b.r = w->ww_b.l + ncol;
139 if ((i = w->ww_b.b - w->ww_w.b) < 0 ||
140 (i = w->ww_cur.r - w->ww_w.b + 1) > 0) {
147 w->ww_i.b = MIN(w->ww_w.b, wwnrow);
148 w->ww_i.r = MIN(w->ww_w.r, wwncol);
149 w->ww_i.nr = w->ww_i.b - w->ww_i.t;
150 w->ww_i.nc = w->ww_i.r - w->ww_i.l;
152 * Initialize new buffers.
156 if (w->ww_oflags & WWO_GLASS)
158 if (w->ww_oflags & WWO_REVERSE)
160 for (i = w->ww_w.t; i < w->ww_w.b; i++)
161 for (j = w->ww_w.l; j < w->ww_w.r; j++)
165 for (i = w->ww_w.t; i < w->ww_w.b; i++)
166 for (j = w->ww_w.l; j < w->ww_w.r; j++)
167 w->ww_fmap[i][j] = 0;
169 j = m ? 0 : w->ww_w.nc;
170 for (i = w->ww_w.t; i < w->ww_w.b; i++)
175 if (ISSET(w->ww_wflags, WWW_HASCURSOR)) {
176 CLR(w->ww_wflags, WWW_HASCURSOR);
182 if (w->ww_type == WWT_PTY && w->ww_pty >= 0)
183 (void) wwsetttysize(w->ww_pty, nrow, ncol);
187 wwfree(win, w->ww_w.t);
189 wwfree(fmap, w->ww_w.t);
191 wwfree((char **)buf, w->ww_b.t);