1 /**************************************************************************** 2 * Copyright (c) 1998 Free Software Foundation, Inc. * 3 * * 4 * Permission is hereby granted, free of charge, to any person obtaining a * 5 * copy of this software and associated documentation files (the * 6 * "Software"), to deal in the Software without restriction, including * 7 * without limitation the rights to use, copy, modify, merge, publish, * 8 * distribute, distribute with modifications, sublicense, and/or sell * 9 * copies of the Software, and to permit persons to whom the Software is * 10 * furnished to do so, subject to the following conditions: * 11 * * 12 * The above copyright notice and this permission notice shall be included * 13 * in all copies or substantial portions of the Software. * 14 * * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 22 * * 23 * Except as contained in this notice, the name(s) of the above copyright * 24 * holders shall not be used in advertising or otherwise to promote the * 25 * sale, use or other dealings in this Software without prior written * 26 * authorization. * 27 ****************************************************************************/ 28 29 /**************************************************************************** 30 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 31 * and: Eric S. Raymond <esr@snark.thyrsus.com> * 32 ****************************************************************************/ 33 34 /* 35 ** lib_touch.c 36 ** 37 ** The routines untouchwin(), 38 ** wtouchln(), 39 ** is_linetouched() 40 ** is_wintouched(). 41 ** 42 */ 43 44 #include <curses.priv.h> 45 46 MODULE_ID("$Id: lib_touch.c,v 1.6 1998/04/11 22:55:02 tom Exp $") 47 48 bool is_linetouched(WINDOW *win, int line) 49 { 50 T((T_CALLED("is_linetouched(%p,%d)"), win, line)); 51 52 /* XSI doesn't define any error */ 53 if (!win || (line > win->_maxy) || (line < 0)) 54 returnCode(ERR); 55 56 returnCode(win->_line[line].firstchar != _NOCHANGE ? TRUE : FALSE); 57 } 58 59 bool is_wintouched(WINDOW *win) 60 { 61 int i; 62 63 T((T_CALLED("is_wintouched(%p)"), win)); 64 65 if (win) 66 for (i = 0; i <= win->_maxy; i++) 67 if (win->_line[i].firstchar != _NOCHANGE) 68 returnCode(TRUE); 69 returnCode(FALSE); 70 } 71 72 int wtouchln(WINDOW *win, int y, int n, int changed) 73 { 74 int i; 75 76 T((T_CALLED("wtouchln(%p,%d,%d,%d)"), win, y, n, changed)); 77 78 if (!win || (n<0) || (y<0) || (y>win->_maxy)) 79 returnCode(ERR); 80 81 for (i = y; i < y+n; i++) { 82 if (i>win->_maxy) break; 83 win->_line[i].firstchar = changed ? 0 : _NOCHANGE; 84 win->_line[i].lastchar = changed ? win->_maxx : _NOCHANGE; 85 } 86 returnCode(OK); 87 } 88