NetBSD/lib/libcurses/delwin.c

80 lines
2.8 KiB
C

/*
* Copyright (c) 1981 Regents of the University of California.
* All rights reserved.
*
* 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
static char sccsid[] = "@(#)delwin.c 5.4 (Berkeley) 6/1/90";
#endif /* not lint */
# include "curses.ext"
/*
* This routine deletes a window and releases it back to the system.
*
*/
delwin(win)
reg WINDOW *win; {
reg int i;
reg WINDOW *wp, *np;
if (win->_orig == NULL) {
/*
* If we are the original window, delete the space for
* all the subwindows, and the array of space as well.
*/
for (i = 0; i < win->_maxy && win->_y[i]; i++)
free(win->_y[i]);
free(win->_firstch);
free(win->_lastch);
wp = win->_nextp;
while (wp != win) {
np = wp->_nextp;
delwin(wp);
wp = np;
}
}
else {
/*
* If we are a subwindow, take ourselves out of the
* list. NOTE: if we are a subwindow, the minimum list
* is orig followed by this subwindow, so there are
* always at least two windows in the list.
*/
for (wp = win->_nextp; wp->_nextp != win; wp = wp->_nextp)
continue;
wp->_nextp = win->_nextp;
}
free(win->_y);
free(win);
}