1 /* $NetBSD: move.c,v 1.26 2024/12/23 02:58:04 blymn Exp $ */ 2 3 /* 4 * Copyright (c) 1981, 1993, 1994 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 #ifndef lint 34 #if 0 35 static char sccsid[] = "@(#)move.c 8.2 (Berkeley) 5/4/94"; 36 #else 37 __RCSID("$NetBSD: move.c,v 1.26 2024/12/23 02:58:04 blymn Exp $"); 38 #endif 39 #endif /* not lint */ 40 41 #include "curses.h" 42 #include "curses_private.h" 43 44 #ifndef _CURSES_USE_MACROS 45 /* 46 * move -- 47 * Moves the cursor to the given point on stdscr. 48 */ 49 int 50 move(int y, int x) 51 { 52 53 return wmove(stdscr, y, x); 54 } 55 56 #endif 57 58 /* 59 * wmove -- 60 * Moves the cursor to the given point. 61 */ 62 int 63 wmove(WINDOW *win, int y, int x) 64 { 65 __CTRACE(__CTRACE_MISC, "wmove: win %p, (%d, %d)\n", win, y, x); 66 if (__predict_false(win == NULL)) 67 return ERR; 68 69 if (x < 0 || y < 0) 70 return ERR; 71 if (x > win->maxx || y >= win->maxy) 72 return ERR; 73 74 /* clear the EOL flags for both where we were and where we are going */ 75 if (win->cury < win->maxy) 76 win->alines[win->cury]->flags &= ~ __ISPASTEOL; 77 win->alines[y]->flags &= ~ __ISPASTEOL; 78 79 if (x == win->maxx) 80 win->alines[y]->flags |= __ISPASTEOL; 81 82 win->curx = x; 83 win->cury = y; 84 85 return OK; 86 } 87 88 void 89 wcursyncup(WINDOW *win) 90 { 91 92 if (__predict_false(win == NULL)) 93 return; 94 95 while (win->orig) { 96 wmove(win->orig, win->cury + win->begy - win->orig->begy, 97 win->curx + win->begx - win->orig->begx); 98 win = win->orig; 99 } 100 } 101