NetBSD/lib/libcurses/overwrite.c

74 lines
2.9 KiB
C
Raw Normal View History

1993-03-21 12:45:37 +03:00
/*
* 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
1993-08-07 09:48:37 +04:00
/*static char sccsid[] = "from: @(#)overwrite.c 5.6 (Berkeley) 8/23/92";*/
static char rcsid[] = "$Id: overwrite.c,v 1.4 1993/08/07 05:49:02 mycroft Exp $";
#endif /* not lint */
1993-03-21 12:45:37 +03:00
1993-08-07 09:48:37 +04:00
#include <ctype.h>
#include <curses.h>
#include <string.h>
1993-03-21 12:45:37 +03:00
/*
1993-08-07 09:48:37 +04:00
* overwrite --
* Writes win1 on win2 destructively.
1993-03-21 12:45:37 +03:00
*/
1993-08-07 09:48:37 +04:00
int
1993-03-21 12:45:37 +03:00
overwrite(win1, win2)
1993-08-07 09:48:37 +04:00
register WINDOW *win1, *win2;
{
register int x, y, endy, endx, starty, startx;
1993-03-21 12:45:37 +03:00
1993-08-07 09:48:37 +04:00
#ifdef DEBUG
__TRACE("overwrite: (%0.2o, %0.2o);\n", win1, win2);
#endif
1993-03-21 12:45:37 +03:00
starty = max(win1->_begy, win2->_begy);
startx = max(win1->_begx, win2->_begx);
endy = min(win1->_maxy + win1->_begy, win2->_maxy + win2->_begx);
endx = min(win1->_maxx + win1->_begx, win2->_maxx + win2->_begx);
if (starty >= endy || startx >= endx)
1993-08-07 09:48:37 +04:00
return (OK);
#ifdef DEBUG
__TRACE("overwrite: from (%d, %d) to (%d, %d)\n",
starty, startx, endy, endx);
#endif
1993-03-21 12:45:37 +03:00
x = endx - startx;
for (y = starty; y < endy; y++) {
bcopy(&win1->_y[y - win1->_begy][startx - win1->_begx],
1993-08-07 09:48:37 +04:00
&win2->_y[y - win2->_begy][startx - win2->_begx], x);
1993-03-21 12:45:37 +03:00
touchline(win2, y, startx - win2->_begx, endx - win2->_begx);
}
1993-08-07 09:48:37 +04:00
return (OK);
1993-03-21 12:45:37 +03:00
}