lib/libcurses/id_subwins.c

    1.1  cgd /*
1.1.1.2  cgd  * Copyright (c) 1981, 1993, 1994
1.1.1.2  cgd  *	The Regents of the University of California.  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
1.1.1.2  cgd static char sccsid[] = "@(#)id_subwins.c	8.2 (Berkeley) 5/4/94";
1.1.1.2  cgd #endif	/* not lint */
    1.1  cgd
1.1.1.2  cgd #include "curses.h"
    1.1  cgd
    1.1  cgd /*
1.1.1.2  cgd  * __id_subwins --
1.1.1.2  cgd  *	Re-sync the pointers to lines for all the subwindows.
    1.1  cgd  */
1.1.1.2  cgd void
1.1.1.2  cgd __id_subwins(orig)
1.1.1.2  cgd 	register WINDOW *orig;
    1.1  cgd {
1.1.1.2  cgd 	register WINDOW *win;
1.1.1.2  cgd 	register int oy, realy, y;
    1.1  cgd
1.1.1.2  cgd 	realy = orig->begy + orig->cury;
1.1.1.2  cgd 	for (win = orig->nextp; win != orig; win = win->nextp) {
    1.1  cgd 		/*
1.1.1.2  cgd 		 * If the window ends before our current position, don't need
1.1.1.2  cgd 		 * to do anything.
    1.1  cgd 		 */
1.1.1.2  cgd 		if (win->begy + win->maxy <= realy)
    1.1  cgd 			continue;
    1.1  cgd
1.1.1.2  cgd 		oy = orig->cury;
1.1.1.2  cgd 		for (y = realy - win->begy; y < win->maxy; y++, oy++)
1.1.1.2  cgd 			win->lines[y]->line =
1.1.1.2  cgd 				&orig->lines[oy]->line[win->ch_off];
    1.1  cgd 	}
    1.1  cgd }