1 /**************************************************************************** 2 * Copyright 2020 Thomas E. Dickey * 3 * Copyright 1998-2016,2017 Free Software Foundation, Inc. * 4 * * 5 * Permission is hereby granted, free of charge, to any person obtaining a * 6 * copy of this software and associated documentation files (the * 7 * "Software"), to deal in the Software without restriction, including * 8 * without limitation the rights to use, copy, modify, merge, publish, * 9 * distribute, distribute with modifications, sublicense, and/or sell * 10 * copies of the Software, and to permit persons to whom the Software is * 11 * furnished to do so, subject to the following conditions: * 12 * * 13 * The above copyright notice and this permission notice shall be included * 14 * in all copies or substantial portions of the Software. * 15 * * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 23 * * 24 * Except as contained in this notice, the name(s) of the above copyright * 25 * holders shall not be used in advertising or otherwise to promote the * 26 * sale, use or other dealings in this Software without prior written * 27 * authorization. * 28 ****************************************************************************/ 29 30 /**************************************************************************** 31 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 32 * and: Eric S. Raymond <esr@snark.thyrsus.com> * 33 * and: Thomas E. Dickey 1996-on * 34 * and: Sven Verdoolaege 2001 * 35 ****************************************************************************/ 36 37 /* 38 ** lib_hline.c 39 ** 40 ** The routine whline(). 41 ** 42 */ 43 44 #include <curses.priv.h> 45 46 MODULE_ID("$Id: lib_hline.c,v 1.16 2020/02/02 23:34:34 tom Exp $") 47 48 NCURSES_EXPORT(int) 49 whline(WINDOW *win, chtype ch, int n) 50 { 51 int code = ERR; 52 53 T((T_CALLED("whline(%p,%s,%d)"), (void *) win, _tracechtype(ch), n)); 54 55 if (win) { 56 struct ldat *line = &(win->_line[win->_cury]); 57 NCURSES_CH_T wch; 58 int start = win->_curx; 59 int end = start + n - 1; 60 61 if (end > win->_maxx) 62 end = win->_maxx; 63 64 CHANGED_RANGE(line, start, end); 65 66 if (ch == 0) 67 SetChar2(wch, ACS_HLINE); 68 else 69 SetChar2(wch, ch); 70 wch = _nc_render(win, wch); 71 72 #if USE_WIDEC_SUPPORT 73 if (start > 0 && isWidecExt(line->text[start])) { 74 SetChar2(line->text[start - 1], ' '); 75 } 76 if (end < win->_maxx && isWidecExt(line->text[end + 1])) { 77 SetChar2(line->text[end + 1], ' '); 78 } 79 #endif 80 while (end >= start) { 81 line->text[end] = wch; 82 end--; 83 } 84 85 _nc_synchook(win); 86 code = OK; 87 } 88 returnCode(code); 89 } 90