1 /* @(#)wwsize.c 8.1 (Berkeley) 6/6/93 */
2 /* $NetBSD: wwsize.c,v 1.9 2006/05/02 22:24:05 christos Exp $ */
5 * Copyright (c) 1983, 1993
6 * The Regents of the University of California. All rights reserved.
8 * This code is derived from software contributed to Berkeley by
9 * Edward Wang at The University of California, Berkeley.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
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.
19 * 3. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
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
40 * Resize a window. Should be unattached.
43 wwsize(struct ww *w, int nrow, int ncol)
47 union ww_char **buf = NULL;
54 * First allocate new buffers.
56 win = wwalloc(w->ww_w.t, w->ww_w.l, nrow, ncol, sizeof (char));
59 if (w->ww_fmap != 0) {
60 fmap = wwalloc(w->ww_w.t, w->ww_w.l, nrow, ncol, sizeof (char));
64 if (nrow > w->ww_b.nr || ncol > w->ww_b.nc) {
65 nline = MAX(w->ww_b.nr, nrow);
66 buf = (union ww_char **) wwalloc(w->ww_b.t, w->ww_b.l,
67 nline, ncol, sizeof (union ww_char));
71 nvis = (short *)malloc((unsigned) nrow * sizeof (short));
83 b = w->ww_b.t + nline;
85 if (ncol < w->ww_b.nc)
86 for (i = w->ww_b.t; i < w->ww_b.b; i++)
87 for (j = w->ww_b.l; j < r; j++)
88 buf[i][j] = w->ww_buf[i][j];
90 for (i = w->ww_b.t; i < w->ww_b.b; i++) {
91 for (j = w->ww_b.l; j < w->ww_b.r; j++)
92 buf[i][j] = w->ww_buf[i][j];
97 for (j = w->ww_b.l; j < r; j++)
101 * Now free the old stuff.
103 wwfree((char **)w->ww_win, w->ww_w.t);
106 wwfree((char **)w->ww_buf, w->ww_b.t);
109 if (w->ww_fmap != 0) {
110 wwfree((char **)w->ww_fmap, w->ww_w.t);
113 free((char *)(w->ww_nvis + w->ww_w.t));
119 w->ww_w.b = w->ww_w.t + nrow;
120 w->ww_w.r = w->ww_w.l + ncol;
125 w->ww_b.b = w->ww_b.t + nline;
126 w->ww_b.r = w->ww_b.l + ncol;
131 if ((i = w->ww_b.b - w->ww_w.b) < 0 ||
132 (i = w->ww_cur.r - w->ww_w.b + 1) > 0) {
139 w->ww_i.b = MIN(w->ww_w.b, wwnrow);
140 w->ww_i.r = MIN(w->ww_w.r, wwncol);
141 w->ww_i.nr = w->ww_i.b - w->ww_i.t;
142 w->ww_i.nc = w->ww_i.r - w->ww_i.l;
144 * Initialize new buffers.
148 if (w->ww_oflags & WWO_GLASS)
150 if (w->ww_oflags & WWO_REVERSE)
152 for (i = w->ww_w.t; i < w->ww_w.b; i++)
153 for (j = w->ww_w.l; j < w->ww_w.r; j++)
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++)
159 w->ww_fmap[i][j] = 0;
161 j = m ? 0 : w->ww_w.nc;
162 for (i = w->ww_w.t; i < w->ww_w.b; i++)
167 if (ISSET(w->ww_wflags, WWW_HASCURSOR)) {
168 CLR(w->ww_wflags, WWW_HASCURSOR);
174 if (w->ww_type == WWT_PTY && w->ww_pty >= 0)
175 (void) wwsetttysize(w->ww_pty, nrow, ncol);
179 wwfree(win, w->ww_w.t);
181 wwfree(fmap, w->ww_w.t);
183 wwfree((char **)buf, w->ww_b.t);