1 /* 2 * Copyright (c) 1981 Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms are permitted 6 * provided that the above copyright notice and this paragraph are 7 * duplicated in all such forms and that any documentation, 8 * advertising materials, and other materials related to such 9 * distribution and use acknowledge that the software was developed 10 * by the University of California, Berkeley. The name of the 11 * University may not be used to endorse or promote products derived 12 * from this software without specific prior written permission. 13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 15 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 16 */ 17 18 #ifndef lint 19 static char sccsid[] = "@(#)mvwin.c 5.3 (Berkeley) 06/30/88"; 20 #endif /* not lint */ 21 22 # include "curses.ext" 23 24 /* 25 * relocate the starting position of a window 26 * 27 */ 28 29 mvwin(win, by, bx) 30 reg WINDOW *win; 31 reg int by, bx; { 32 33 register WINDOW *orig; 34 register int dy, dx; 35 36 if (by + win->_maxy > LINES || bx + win->_maxx > COLS) 37 return ERR; 38 dy = by - win->_begy; 39 dx = bx - win->_begx; 40 orig = win->_orig; 41 if (orig == NULL) { 42 orig = win; 43 do { 44 win->_begy += dy; 45 win->_begx += dx; 46 _swflags_(win); 47 win = win->_nextp; 48 } while (win != orig); 49 } 50 else { 51 if (by < orig->_begy || win->_maxy + dy > orig->_maxy) 52 return ERR; 53 if (bx < orig->_begx || win->_maxx + dx > orig->_maxx) 54 return ERR; 55 win->_begy = by; 56 win->_begx = bx; 57 _swflags_(win); 58 _set_subwin_(orig, win); 59 } 60 touchwin(win); 61 return OK; 62 } 63