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mvwin.c revision 1.6.2.2
      1  1.6.2.2  cgd /*
      2  1.6.2.2  cgd  * Copyright (c) 1981, 1993, 1994
      3  1.6.2.2  cgd  *	The Regents of the University of California.  All rights reserved.
      4  1.6.2.2  cgd  *
      5  1.6.2.2  cgd  * Redistribution and use in source and binary forms, with or without
      6  1.6.2.2  cgd  * modification, are permitted provided that the following conditions
      7  1.6.2.2  cgd  * are met:
      8  1.6.2.2  cgd  * 1. Redistributions of source code must retain the above copyright
      9  1.6.2.2  cgd  *    notice, this list of conditions and the following disclaimer.
     10  1.6.2.2  cgd  * 2. Redistributions in binary form must reproduce the above copyright
     11  1.6.2.2  cgd  *    notice, this list of conditions and the following disclaimer in the
     12  1.6.2.2  cgd  *    documentation and/or other materials provided with the distribution.
     13  1.6.2.2  cgd  * 3. All advertising materials mentioning features or use of this software
     14  1.6.2.2  cgd  *    must display the following acknowledgement:
     15  1.6.2.2  cgd  *	This product includes software developed by the University of
     16  1.6.2.2  cgd  *	California, Berkeley and its contributors.
     17  1.6.2.2  cgd  * 4. Neither the name of the University nor the names of its contributors
     18  1.6.2.2  cgd  *    may be used to endorse or promote products derived from this software
     19  1.6.2.2  cgd  *    without specific prior written permission.
     20  1.6.2.2  cgd  *
     21  1.6.2.2  cgd  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  1.6.2.2  cgd  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  1.6.2.2  cgd  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  1.6.2.2  cgd  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  1.6.2.2  cgd  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  1.6.2.2  cgd  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  1.6.2.2  cgd  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  1.6.2.2  cgd  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  1.6.2.2  cgd  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  1.6.2.2  cgd  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  1.6.2.2  cgd  * SUCH DAMAGE.
     32  1.6.2.2  cgd  */
     33  1.6.2.2  cgd 
     34  1.6.2.2  cgd #ifndef lint
     35  1.6.2.2  cgd static char sccsid[] = "@(#)mvwin.c	8.2 (Berkeley) 5/4/94";
     36  1.6.2.2  cgd #endif	/* not lint */
     37  1.6.2.2  cgd 
     38  1.6.2.2  cgd #include "curses.h"
     39  1.6.2.2  cgd 
     40  1.6.2.2  cgd /*
     41  1.6.2.2  cgd  * mvwin --
     42  1.6.2.2  cgd  *	Relocate the starting position of a window.
     43  1.6.2.2  cgd  */
     44  1.6.2.2  cgd int
     45  1.6.2.2  cgd mvwin(win, by, bx)
     46  1.6.2.2  cgd 	register WINDOW *win;
     47  1.6.2.2  cgd 	register int by, bx;
     48  1.6.2.2  cgd {
     49  1.6.2.2  cgd 	register WINDOW *orig;
     50  1.6.2.2  cgd 	register int dy, dx;
     51  1.6.2.2  cgd 
     52  1.6.2.2  cgd 	if (by + win->maxy > LINES || bx + win->maxx > COLS)
     53  1.6.2.2  cgd 		return (ERR);
     54  1.6.2.2  cgd 	dy = by - win->begy;
     55  1.6.2.2  cgd 	dx = bx - win->begx;
     56  1.6.2.2  cgd 	orig = win->orig;
     57  1.6.2.2  cgd 	if (orig == NULL) {
     58  1.6.2.2  cgd 		orig = win;
     59  1.6.2.2  cgd 		do {
     60  1.6.2.2  cgd 			win->begy += dy;
     61  1.6.2.2  cgd 			win->begx += dx;
     62  1.6.2.2  cgd 			__swflags(win);
     63  1.6.2.2  cgd 			win = win->nextp;
     64  1.6.2.2  cgd 		} while (win != orig);
     65  1.6.2.2  cgd 	} else {
     66  1.6.2.2  cgd 		if (by < orig->begy || win->maxy + dy > orig->maxy)
     67  1.6.2.2  cgd 			return (ERR);
     68  1.6.2.2  cgd 		if (bx < orig->begx || win->maxx + dx > orig->maxx)
     69  1.6.2.2  cgd 			return (ERR);
     70  1.6.2.2  cgd 		win->begy = by;
     71  1.6.2.2  cgd 		win->begx = bx;
     72  1.6.2.2  cgd 		__swflags(win);
     73  1.6.2.2  cgd 		__set_subwin(orig, win);
     74  1.6.2.2  cgd 	}
     75  1.6.2.2  cgd 	__touchwin(win);
     76  1.6.2.2  cgd 	return (OK);
     77  1.6.2.2  cgd }
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