1 /* $OpenBSD: lib_touch.c,v 1.2 2001/01/22 18:01:47 millert Exp $ */ 2 3 /**************************************************************************** 4 * Copyright (c) 1998,2000 Free Software Foundation, Inc. * 5 * * 6 * Permission is hereby granted, free of charge, to any person obtaining a * 7 * copy of this software and associated documentation files (the * 8 * "Software"), to deal in the Software without restriction, including * 9 * without limitation the rights to use, copy, modify, merge, publish, * 10 * distribute, distribute with modifications, sublicense, and/or sell * 11 * copies of the Software, and to permit persons to whom the Software is * 12 * furnished to do so, subject to the following conditions: * 13 * * 14 * The above copyright notice and this permission notice shall be included * 15 * in all copies or substantial portions of the Software. * 16 * * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 20 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 23 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 24 * * 25 * Except as contained in this notice, the name(s) of the above copyright * 26 * holders shall not be used in advertising or otherwise to promote the * 27 * sale, use or other dealings in this Software without prior written * 28 * authorization. * 29 ****************************************************************************/ 30 31 /**************************************************************************** 32 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 33 * and: Eric S. Raymond <esr@snark.thyrsus.com> * 34 ****************************************************************************/ 35 36 /* 37 ** lib_touch.c 38 ** 39 ** The routines untouchwin(), 40 ** wtouchln(), 41 ** is_linetouched() 42 ** is_wintouched(). 43 ** 44 */ 45 46 #include <curses.priv.h> 47 48 MODULE_ID("$From: lib_touch.c,v 1.9 2000/12/10 02:43:27 tom Exp $") 49 50 NCURSES_EXPORT(bool) 51 is_linetouched(WINDOW *win, int line) 52 { 53 T((T_CALLED("is_linetouched(%p,%d)"), win, line)); 54 55 /* XSI doesn't define any error */ 56 if (!win || (line > win->_maxy) || (line < 0)) 57 returnCode((bool) ERR); 58 59 returnCode(win->_line[line].firstchar != _NOCHANGE ? TRUE : FALSE); 60 } 61 62 NCURSES_EXPORT(bool) 63 is_wintouched(WINDOW *win) 64 { 65 int i; 66 67 T((T_CALLED("is_wintouched(%p)"), win)); 68 69 if (win) 70 for (i = 0; i <= win->_maxy; i++) 71 if (win->_line[i].firstchar != _NOCHANGE) 72 returnCode(TRUE); 73 returnCode(FALSE); 74 } 75 76 NCURSES_EXPORT(int) 77 wtouchln(WINDOW *win, int y, int n, int changed) 78 { 79 int i; 80 81 T((T_CALLED("wtouchln(%p,%d,%d,%d)"), win, y, n, changed)); 82 83 if (!win || (n < 0) || (y < 0) || (y > win->_maxy)) 84 returnCode(ERR); 85 86 for (i = y; i < y + n; i++) { 87 if (i > win->_maxy) 88 break; 89 win->_line[i].firstchar = changed ? 0 : _NOCHANGE; 90 win->_line[i].lastchar = changed ? win->_maxx : _NOCHANGE; 91 } 92 returnCode(OK); 93 } 94