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, 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 5.4 (Berkeley) 6/1/90"; 36 #endif /* not lint */ 37 38 # include "curses.ext" 39 40 /* 41 * relocate the starting position of a window 42 * 43 */ 44 45 mvwin(win, by, bx) 46 reg WINDOW *win; 47 reg 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 } 66 else { 67 if (by < orig->_begy || win->_maxy + dy > orig->_maxy) 68 return ERR; 69 if (bx < orig->_begx || win->_maxx + dx > orig->_maxx) 70 return ERR; 71 win->_begy = by; 72 win->_begx = bx; 73 _swflags_(win); 74 _set_subwin_(orig, win); 75 } 76 touchwin(win); 77 return OK; 78 } 79