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[] = "@(#)touchwin.c 5.4 (Berkeley) 6/1/90"; 36 #endif /* not lint */ 37 38 # include "curses.ext" 39 40 /* 41 * make it look like the whole window has been changed. 42 * 43 */ 44 touchwin(win) 45 register WINDOW *win; 46 { 47 register int y, maxy; 48 49 # ifdef DEBUG 50 fprintf(outf, "TOUCHWIN(%0.2o)\n", win); 51 # endif 52 maxy = win->_maxy; 53 for (y = 0; y < maxy; y++) 54 touchline(win, y, 0, win->_maxx - 1); 55 } 56 57 /* 58 * touch a given line 59 */ 60 touchline(win, y, sx, ex) 61 register WINDOW *win; 62 register int y, sx, ex; 63 { 64 # ifdef DEBUG 65 fprintf(outf, "TOUCHLINE(%0.2o, %d, %d, %d)\n", win, y, sx, ex); 66 fprintf(outf, "TOUCHLINE:first = %d, last = %d\n", win->_firstch[y], win->_lastch[y]); 67 # endif 68 sx += win->_ch_off; 69 ex += win->_ch_off; 70 if (win->_firstch[y] == _NOCHANGE) { 71 win->_firstch[y] = sx; 72 win->_lastch[y] = ex; 73 } 74 else { 75 if (win->_firstch[y] > sx) 76 win->_firstch[y] = sx; 77 if (win->_lastch[y] < ex) 78 win->_lastch[y] = ex; 79 } 80 # ifdef DEBUG 81 fprintf(outf, "TOUCHLINE:first = %d, last = %d\n", win->_firstch[y], win->_lastch[y]); 82 # endif 83 } 84