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mvwin.c revision 1.1 
      1  1.1  cgd /*
      2  1.1  cgd  * Copyright (c) 1981 Regents of the University of California.
      3  1.1  cgd  * All rights reserved.
      4  1.1  cgd  *
      5  1.1  cgd  * Redistribution and use in source and binary forms, with or without
      6  1.1  cgd  * modification, are permitted provided that the following conditions
      7  1.1  cgd  * are met:
      8  1.1  cgd  * 1. Redistributions of source code must retain the above copyright
      9  1.1  cgd  *    notice, this list of conditions and the following disclaimer.
     10  1.1  cgd  * 2. Redistributions in binary form must reproduce the above copyright
     11  1.1  cgd  *    notice, this list of conditions and the following disclaimer in the
     12  1.1  cgd  *    documentation and/or other materials provided with the distribution.
     13  1.1  cgd  * 3. All advertising materials mentioning features or use of this software
     14  1.1  cgd  *    must display the following acknowledgement:
     15  1.1  cgd  *	This product includes software developed by the University of
     16  1.1  cgd  *	California, Berkeley and its contributors.
     17  1.1  cgd  * 4. Neither the name of the University nor the names of its contributors
     18  1.1  cgd  *    may be used to endorse or promote products derived from this software
     19  1.1  cgd  *    without specific prior written permission.
     20  1.1  cgd  *
     21  1.1  cgd  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  1.1  cgd  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  1.1  cgd  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  1.1  cgd  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  1.1  cgd  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  1.1  cgd  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  1.1  cgd  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  1.1  cgd  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  1.1  cgd  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  1.1  cgd  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  1.1  cgd  * SUCH DAMAGE.
     32  1.1  cgd  */
     33  1.1  cgd 
     34  1.1  cgd #ifndef lint
     35  1.1  cgd static char sccsid[] = "@(#)mvwin.c	5.4 (Berkeley) 6/1/90";
     36  1.1  cgd #endif /* not lint */
     37  1.1  cgd 
     38  1.1  cgd # include	"curses.ext"
     39  1.1  cgd 
     40  1.1  cgd /*
     41  1.1  cgd  * relocate the starting position of a window
     42  1.1  cgd  *
     43  1.1  cgd  */
     44  1.1  cgd 
     45  1.1  cgd mvwin(win, by, bx)
     46  1.1  cgd reg WINDOW	*win;
     47  1.1  cgd reg int		by, bx; {
     48  1.1  cgd 
     49  1.1  cgd 	register WINDOW	*orig;
     50  1.1  cgd 	register int	dy, dx;
     51  1.1  cgd 
     52  1.1  cgd 	if (by + win->_maxy > LINES || bx + win->_maxx > COLS)
     53  1.1  cgd 		return ERR;
     54  1.1  cgd 	dy = by - win->_begy;
     55  1.1  cgd 	dx = bx - win->_begx;
     56  1.1  cgd 	orig = win->_orig;
     57  1.1  cgd 	if (orig == NULL) {
     58  1.1  cgd 		orig = win;
     59  1.1  cgd 		do {
     60  1.1  cgd 			win->_begy += dy;
     61  1.1  cgd 			win->_begx += dx;
     62  1.1  cgd 			_swflags_(win);
     63  1.1  cgd 			win = win->_nextp;
     64  1.1  cgd 		} while (win != orig);
     65  1.1  cgd 	}
     66  1.1  cgd 	else {
     67  1.1  cgd 		if (by < orig->_begy || win->_maxy + dy > orig->_maxy)
     68  1.1  cgd 			return ERR;
     69  1.1  cgd 		if (bx < orig->_begx || win->_maxx + dx > orig->_maxx)
     70  1.1  cgd 			return ERR;
     71  1.1  cgd 		win->_begy = by;
     72  1.1  cgd 		win->_begx = bx;
     73  1.1  cgd 		_swflags_(win);
     74  1.1  cgd 		_set_subwin_(orig, win);
     75  1.1  cgd 	}
     76  1.1  cgd 	touchwin(win);
     77  1.1  cgd 	return OK;
     78  1.1  cgd }
     79