1 /**************************************************************************** 2 * Copyright 2019,2020 Thomas E. Dickey * 3 * Copyright 2002-2016,2017 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: Thomas Dickey 2002 * 32 ****************************************************************************/ 33 34 /* 35 ** lib_ins_wch.c 36 ** 37 ** The routine wins_wch(). 38 ** 39 */ 40 41 #include <curses.priv.h> 42 43 MODULE_ID("$Id: lib_ins_wch.c,v 1.25 2020/12/05 20:04:59 tom Exp $") 44 45 /* 46 * Insert the given character, updating the current location to simplify 47 * inserting a string. 48 */ 49 NCURSES_EXPORT(int) 50 _nc_insert_wch(WINDOW *win, const cchar_t *wch) 51 { 52 int cells = _nc_wacs_width(CharOf(CHDEREF(wch))); 53 int code = OK; 54 55 if (cells < 0) { 56 code = winsch(win, (chtype) CharOf(CHDEREF(wch))); 57 } else { 58 if (cells == 0) 59 cells = 1; 60 61 if (win->_curx <= win->_maxx) { 62 int cell; 63 struct ldat *line = &(win->_line[win->_cury]); 64 NCURSES_CH_T *end = &(line->text[win->_curx]); 65 NCURSES_CH_T *temp1 = &(line->text[win->_maxx]); 66 NCURSES_CH_T *temp2 = temp1 - cells; 67 68 CHANGED_TO_EOL(line, win->_curx, win->_maxx); 69 while (temp1 > end) 70 *temp1-- = *temp2--; 71 72 *temp1 = _nc_render(win, *wch); 73 for (cell = 1; cell < cells; ++cell) { 74 SetWidecExt(temp1[cell], cell); 75 } 76 77 win->_curx = (NCURSES_SIZE_T) (win->_curx + cells); 78 } 79 } 80 return code; 81 } 82 83 NCURSES_EXPORT(int) 84 wins_wch(WINDOW *win, const cchar_t *wch) 85 { 86 int code = ERR; 87 88 T((T_CALLED("wins_wch(%p, %s)"), (void *) win, _tracecchar_t(wch))); 89 90 if (win != 0) { 91 NCURSES_SIZE_T oy = win->_cury; 92 NCURSES_SIZE_T ox = win->_curx; 93 94 code = _nc_insert_wch(win, wch); 95 96 win->_curx = ox; 97 win->_cury = oy; 98 _nc_synchook(win); 99 } 100 returnCode(code); 101 } 102 103 NCURSES_EXPORT(int) 104 wins_nwstr(WINDOW *win, const wchar_t *wstr, int n) 105 { 106 int code = ERR; 107 108 T((T_CALLED("wins_nwstr(%p,%s,%d)"), 109 (void *) win, _nc_viswbufn(wstr, n), n)); 110 111 if (win != 0 112 && wstr != 0) { 113 if (n < 1) 114 n = INT_MAX; 115 code = OK; 116 117 if (n > 0) { 118 const wchar_t *cp; 119 SCREEN *sp = _nc_screen_of(win); 120 NCURSES_SIZE_T oy = win->_cury; 121 NCURSES_SIZE_T ox = win->_curx; 122 123 for (cp = wstr; (*cp != L'\0') && ((cp - wstr) < n); cp++) { 124 int len = _nc_wacs_width(*cp); 125 126 if ((len >= 0 && len != 1) || !is7bits(*cp)) { 127 cchar_t tmp_cchar; 128 wchar_t tmp_wchar = *cp; 129 memset(&tmp_cchar, 0, sizeof(tmp_cchar)); 130 (void) setcchar(&tmp_cchar, 131 &tmp_wchar, 132 WA_NORMAL, 133 (short) 0, 134 (void *) 0); 135 code = _nc_insert_wch(win, &tmp_cchar); 136 } else { 137 /* tabs, other ASCII stuff */ 138 code = _nc_insert_ch(sp, win, (chtype) (*cp)); 139 } 140 if (code != OK) 141 break; 142 } 143 144 win->_curx = ox; 145 win->_cury = oy; 146 _nc_synchook(win); 147 } 148 } 149 returnCode(code); 150 } 151