1 /* 2 * Copyright (c) 1981, 1993, 1994 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 static char sccsid[] = "@(#)mvwin.c 8.2 (Berkeley) 5/4/94"; 36 #endif /* not lint */ 37 38 #include "curses.h" 39 40 /* 41 * mvwin -- 42 * Relocate the starting position of a window. 43 */ 44 int 45 mvwin(win, by, bx) 46 register WINDOW *win; 47 register int by, bx; 48 { 49 register WINDOW *orig; 50 register int dy, dx; 51 52 if (by + win->maxy > LINES || bx + win->maxx > COLS) 53 return (ERR); 54 dy = by - win->begy; 55 dx = bx - win->begx; 56 orig = win->orig; 57 if (orig == NULL) { 58 orig = win; 59 do { 60 win->begy += dy; 61 win->begx += dx; 62 __swflags(win); 63 win = win->nextp; 64 } while (win != orig); 65 } else { 66 if (by < orig->begy || win->maxy + dy > orig->maxy) 67 return (ERR); 68 if (bx < orig->begx || win->maxx + dx > orig->maxx) 69 return (ERR); 70 win->begy = by; 71 win->begx = bx; 72 __swflags(win); 73 __set_subwin(orig, win); 74 } 75 __touchwin(win); 76 return (OK); 77 } 78