| Amit Daniel Kachhap | e6a01f5 | 2011-07-20 11:45:59 +0530 | [diff] [blame] | 1 | /**************************************************************************** |
| 2 | * Copyright (c) 1998,2000 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 1.9 2000/12/10 02:43:27 tom Exp $") |
| 47 | |
| 48 | NCURSES_EXPORT(bool) |
| 49 | is_linetouched(WINDOW *win, int line) |
| 50 | { |
| 51 | T((T_CALLED("is_linetouched(%p,%d)"), win, line)); |
| 52 | |
| 53 | /* XSI doesn't define any error */ |
| 54 | if (!win || (line > win->_maxy) || (line < 0)) |
| 55 | returnCode((bool) ERR); |
| 56 | |
| 57 | returnCode(win->_line[line].firstchar != _NOCHANGE ? TRUE : FALSE); |
| 58 | } |
| 59 | |
| 60 | NCURSES_EXPORT(bool) |
| 61 | is_wintouched(WINDOW *win) |
| 62 | { |
| 63 | int i; |
| 64 | |
| 65 | T((T_CALLED("is_wintouched(%p)"), win)); |
| 66 | |
| 67 | if (win) |
| 68 | for (i = 0; i <= win->_maxy; i++) |
| 69 | if (win->_line[i].firstchar != _NOCHANGE) |
| 70 | returnCode(TRUE); |
| 71 | returnCode(FALSE); |
| 72 | } |
| 73 | |
| 74 | NCURSES_EXPORT(int) |
| 75 | wtouchln(WINDOW *win, int y, int n, int changed) |
| 76 | { |
| 77 | int i; |
| 78 | |
| 79 | T((T_CALLED("wtouchln(%p,%d,%d,%d)"), win, y, n, changed)); |
| 80 | |
| 81 | if (!win || (n < 0) || (y < 0) || (y > win->_maxy)) |
| 82 | returnCode(ERR); |
| 83 | |
| 84 | for (i = y; i < y + n; i++) { |
| 85 | if (i > win->_maxy) |
| 86 | break; |
| 87 | win->_line[i].firstchar = changed ? 0 : _NOCHANGE; |
| 88 | win->_line[i].lastchar = changed ? win->_maxx : _NOCHANGE; |
| 89 | } |
| 90 | returnCode(OK); |
| 91 | } |