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[] = "from: @(#)touchwin.c 5.5 (Berkeley) 8/23/92";*/ 36 static char rcsid[] = "$Id: touchwin.c,v 1.3 1993/08/07 05:49:08 mycroft Exp $"; 37 #endif /* not lint */ 38 39 #include <curses.h> 40 41 /* 42 * touchwin -- 43 * Make it look like the whole window has been changed. 44 */ 45 int 46 touchwin(win) 47 register WINDOW *win; 48 { 49 register int y, maxy; 50 51 #ifdef DEBUG 52 __TRACE("touchwin: (%0.2o)\n", win); 53 #endif 54 maxy = win->_maxy; 55 for (y = 0; y < maxy; y++) 56 touchline(win, y, 0, win->_maxx - 1); 57 return (OK); 58 } 59 60 /* 61 * touchline -- 62 * Touch a given line. 63 */ 64 int 65 touchline(win, y, sx, ex) 66 register WINDOW *win; 67 register int y, sx, ex; 68 { 69 #ifdef DEBUG 70 __TRACE("touchline: (%0.2o, %d, %d, %d)\n", win, y, sx, ex); 71 __TRACE("touchline: first = %d, last = %d\n", 72 win->_firstch[y], win->_lastch[y]); 73 #endif 74 sx += win->_ch_off; 75 ex += win->_ch_off; 76 if (win->_firstch[y] == _NOCHANGE) { 77 win->_firstch[y] = sx; 78 win->_lastch[y] = ex; 79 } else { 80 if (win->_firstch[y] > sx) 81 win->_firstch[y] = sx; 82 if (win->_lastch[y] < ex) 83 win->_lastch[y] = ex; 84 } 85 #ifdef DEBUG 86 __TRACE("touchline: first = %d, last = %d\n", 87 win->_firstch[y], win->_lastch[y]); 88 #endif 89 return (OK); 90 } 91