Home | History | Annotate | Line # | Download | only in libcurses
insertln.c revision 1.10.6.1 
      1 /*	$NetBSD: insertln.c,v 1.10.6.1 2000/01/09 20:43:19 jdc Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1981, 1993, 1994
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the University of
     18  *	California, Berkeley and its contributors.
     19  * 4. 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.
     22  *
     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
     33  * SUCH DAMAGE.
     34  */
     35 
     36 #include <sys/cdefs.h>
     37 #ifndef lint
     38 #if 0
     39 static char sccsid[] = "@(#)insertln.c	8.2 (Berkeley) 5/4/94";
     40 #else
     41 __RCSID("$NetBSD: insertln.c,v 1.10.6.1 2000/01/09 20:43:19 jdc Exp $");
     42 #endif
     43 #endif				/* not lint */
     44 
     45 #include <string.h>
     46 
     47 #include "curses.h"
     48 
     49 /*
     50  * winsertln --
     51  *	Do an insert-line on the window, leaving (cury, curx) unchanged.
     52  */
     53 int
     54 winsertln(win)
     55 	WINDOW *win;
     56 {
     57 
     58 	int     y, i;
     59 	__LINE *temp;
     60 
     61 #ifdef DEBUG
     62 	__CTRACE("insertln: (%0.2o)\n", win);
     63 #endif
     64 #ifdef __GNUC__
     65 	temp = NULL;		/* XXX gcc -Wuninitialized */
     66 #endif
     67 	if (win->orig == NULL)
     68 		temp = win->lines[win->maxy - 1];
     69 	for (y = win->maxy - 1; y > win->cury; --y) {
     70 		win->lines[y]->flags &= ~__ISPASTEOL;
     71 		win->lines[y - 1]->flags &= ~__ISPASTEOL;
     72 		if (win->orig == NULL)
     73 			win->lines[y] = win->lines[y - 1];
     74 		else
     75 			(void) memcpy(win->lines[y]->line,
     76 			    win->lines[y - 1]->line,
     77 			    (size_t) win->maxx * __LDATASIZE);
     78 		__touchline(win, y, 0, (int) win->maxx - 1, 0);
     79 	}
     80 	if (win->orig == NULL)
     81 		win->lines[y] = temp;
     82 	else
     83 		temp = win->lines[y];
     84 	for (i = 0; i < win->maxx; i++) {
     85 		temp->line[i].ch = ' ';
     86 		temp->line[i].attr = 0;
     87 	}
     88 	__touchline(win, y, 0, (int) win->maxx - 1, 0);
     89 	if (win->orig == NULL)
     90 		__id_subwins(win);
     91 	return (OK);
     92 }
     93