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/* $OpenBSD: wwsize.c,v 1.5 1997/02/25 00:05:08 downsj Exp $ */
/* $NetBSD: wwsize.c,v 1.5 1996/02/08 20:45:11 mycroft Exp $ */
/*
* Copyright (c) 1983, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Edward Wang at The University of California, Berkeley.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
#if 0
static char sccsid[] = "@(#)wwsize.c 8.1 (Berkeley) 6/6/93";
#else
static char rcsid[] = "$OpenBSD: wwsize.c,v 1.5 1997/02/25 00:05:08 downsj Exp $";
#endif
#endif /* not lint */
#include "ww.h"
/*
* Resize a window. Should be unattached.
*/
wwsize(w, nrow, ncol)
register struct ww *w;
{
register i, j;
int nline;
union ww_char **buf = 0;
char **win = 0;
short *nvis = 0;
char **fmap = 0;
char m;
/*
* First allocate new buffers.
*/
win = wwalloc(w->ww_w.t, w->ww_w.l, nrow, ncol, sizeof (char));
if (win == 0)
goto bad;
if (w->ww_fmap != 0) {
fmap = wwalloc(w->ww_w.t, w->ww_w.l, nrow, ncol, sizeof (char));
if (fmap == 0)
goto bad;
}
if (nrow > w->ww_b.nr || ncol > w->ww_b.nc) {
nline = MAX(w->ww_b.nr, nrow);
buf = (union ww_char **) wwalloc(w->ww_b.t, w->ww_b.l,
nline, ncol, sizeof (union ww_char));
if (buf == 0)
goto bad;
}
nvis = (short *)malloc((unsigned) nrow * sizeof (short));
if (nvis == 0) {
wwerrno = WWE_NOMEM;
goto bad;
}
nvis -= w->ww_w.t;
/*
* Copy text buffer.
*/
if (buf != 0) {
int b, r;
b = w->ww_b.t + nline;
r = w->ww_b.l + ncol;
if (ncol < w->ww_b.nc)
for (i = w->ww_b.t; i < w->ww_b.b; i++)
for (j = w->ww_b.l; j < r; j++)
buf[i][j] = w->ww_buf[i][j];
else
for (i = w->ww_b.t; i < w->ww_b.b; i++) {
for (j = w->ww_b.l; j < w->ww_b.r; j++)
buf[i][j] = w->ww_buf[i][j];
for (; j < r; j++)
buf[i][j].c_w = ' ';
}
for (; i < b; i++)
for (j = w->ww_b.l; j < r; j++)
buf[i][j].c_w = ' ';
}
/*
* Now free the old stuff.
*/
wwfree((char **)w->ww_win, w->ww_w.t);
w->ww_win = win;
if (buf != 0) {
wwfree((char **)w->ww_buf, w->ww_b.t);
w->ww_buf = buf;
}
if (w->ww_fmap != 0) {
wwfree((char **)w->ww_fmap, w->ww_w.t);
w->ww_fmap = fmap;
}
free((char *)(w->ww_nvis + w->ww_w.t));
w->ww_nvis = nvis;
/*
* Set new sizes.
*/
/* window */
w->ww_w.b = w->ww_w.t + nrow;
w->ww_w.r = w->ww_w.l + ncol;
w->ww_w.nr = nrow;
w->ww_w.nc = ncol;
/* text buffer */
if (buf != 0) {
w->ww_b.b = w->ww_b.t + nline;
w->ww_b.r = w->ww_b.l + ncol;
w->ww_b.nr = nline;
w->ww_b.nc = ncol;
}
/* scroll */
if ((i = w->ww_b.b - w->ww_w.b) < 0 ||
(i = w->ww_cur.r - w->ww_w.b + 1) > 0) {
w->ww_buf += i;
w->ww_b.t -= i;
w->ww_b.b -= i;
w->ww_cur.r -= i;
}
/* interior */
w->ww_i.b = MIN(w->ww_w.b, wwnrow);
w->ww_i.r = MIN(w->ww_w.r, wwncol);
w->ww_i.nr = w->ww_i.b - w->ww_i.t;
w->ww_i.nc = w->ww_i.r - w->ww_i.l;
/*
* Initialize new buffers.
*/
/* window */
m = 0;
if (w->ww_oflags & WWO_GLASS)
m |= WWM_GLS;
if (w->ww_oflags & WWO_REVERSE)
m |= WWM_REV;
for (i = w->ww_w.t; i < w->ww_w.b; i++)
for (j = w->ww_w.l; j < w->ww_w.r; j++)
w->ww_win[i][j] = m;
/* frame map */
if (fmap != 0)
for (i = w->ww_w.t; i < w->ww_w.b; i++)
for (j = w->ww_w.l; j < w->ww_w.r; j++)
w->ww_fmap[i][j] = 0;
/* visibility */
j = m ? 0 : w->ww_w.nc;
for (i = w->ww_w.t; i < w->ww_w.b; i++)
w->ww_nvis[i] = j;
/*
* Put cursor back.
*/
if (ISSET(w->ww_wflags, WWW_HASCURSOR)) {
CLR(w->ww_wflags, WWW_HASCURSOR);
wwcursor(w, 1);
}
/*
* Fool with pty.
*/
if (w->ww_type == WWT_PTY && w->ww_pty >= 0)
(void) wwsetttysize(w->ww_pty, nrow, ncol);
return 0;
bad:
if (win != 0)
wwfree(win, w->ww_w.t);
if (fmap != 0)
wwfree(fmap, w->ww_w.t);
if (buf != 0)
wwfree((char **)buf, w->ww_b.t);
if (nvis != 0)
free((char *)(nvis + w->ww_w.t));
return -1;
}
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