lib/libcurses/id_subwins.c

1.1      cgd /*
1.1      cgd  * Copyright (c) 1981 Regents of the University of California.
1.1      cgd  * All rights reserved.
1.1      cgd  *
1.1      cgd  * Redistribution and use in source and binary forms, with or without
1.1      cgd  * modification, are permitted provided that the following conditions
1.1      cgd  * are met:
1.1      cgd  * 1. Redistributions of source code must retain the above copyright
1.1      cgd  *    notice, this list of conditions and the following disclaimer.
1.1      cgd  * 2. Redistributions in binary form must reproduce the above copyright
1.1      cgd  *    notice, this list of conditions and the following disclaimer in the
1.1      cgd  *    documentation and/or other materials provided with the distribution.
1.1      cgd  * 3. All advertising materials mentioning features or use of this software
1.1      cgd  *    must display the following acknowledgement:
1.1      cgd  *	This product includes software developed by the University of
1.1      cgd  *	California, Berkeley and its contributors.
1.1      cgd  * 4. Neither the name of the University nor the names of its contributors
1.1      cgd  *    may be used to endorse or promote products derived from this software
1.1      cgd  *    without specific prior written permission.
1.1      cgd  *
1.1      cgd  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
1.1      cgd  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.1      cgd  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.1      cgd  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
1.1      cgd  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1.1      cgd  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
1.1      cgd  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1.1      cgd  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
1.1      cgd  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
1.1      cgd  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
1.1      cgd  * SUCH DAMAGE.
1.1      cgd  */
1.1      cgd
1.1      cgd #ifndef lint
1.2  mycroft /*static char sccsid[] = "from: @(#)id_subwins.c	5.4 (Berkeley) 6/1/90";*/
1.2  mycroft static char rcsid[] = "$Id: id_subwins.c,v 1.2 1993/08/01 18:35:39 mycroft Exp $";
1.1      cgd #endif /* not lint */
1.1      cgd
1.1      cgd # include	"curses.ext"
1.1      cgd
1.1      cgd /*
1.1      cgd  * _id_subwins:
1.1      cgd  *	Re-sync the pointers to _y for all the subwindows.
1.1      cgd  *
1.1      cgd  */
1.1      cgd _id_subwins(orig)
1.1      cgd register WINDOW	*orig;
1.1      cgd {
1.1      cgd 	register WINDOW	*win;
1.1      cgd 	register int	realy;
1.1      cgd 	register int	y, oy, x;
1.1      cgd
1.1      cgd 	realy = orig->_begy + orig->_cury;
1.1      cgd 	for (win = orig->_nextp; win != orig; win = win->_nextp) {
1.1      cgd 		/*
1.1      cgd 		 * If the window ends before our current position,
1.1      cgd 		 * don't need to do anything.
1.1      cgd 		 */
1.1      cgd 		if (win->_begy + win->_maxy <= realy)
1.1      cgd 			continue;
1.1      cgd
1.1      cgd 		oy = orig->_cury;
1.1      cgd 		for (y = realy - win->_begy; y < win->_maxy; y++, oy++)
1.1      cgd 			win->_y[y] = &orig->_y[oy][win->_ch_off];
1.1      cgd 	}
1.1      cgd }