1 /**************************************************************************** 2 * Copyright (c) 2002-2003,2005 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: Thomas Dickey 2002 * 31 ****************************************************************************/ 32 33 /* 34 ** lib_ins_wch.c 35 ** 36 ** The routine wins_wch(). 37 ** 38 */ 39 40 #include <curses.priv.h> 41 42 MODULE_ID("$Id: lib_ins_wch.c,v 1.8 2005/12/03 20:24:19 tom Exp $") 43 44 /* 45 * Insert the given character, updating the current location to simplify 46 * inserting a string. 47 */ 48 static int 49 _nc_insert_wch(WINDOW *win, const cchar_t *wch) 50 { 51 int cells = wcwidth(CharOf(CHDEREF(wch))); 52 int cell; 53 54 if (cells <= 0) 55 cells = 1; 56 57 if (win->_curx <= win->_maxx) { 58 struct ldat *line = &(win->_line[win->_cury]); 59 NCURSES_CH_T *end = &(line->text[win->_curx]); 60 NCURSES_CH_T *temp1 = &(line->text[win->_maxx]); 61 NCURSES_CH_T *temp2 = temp1 - cells; 62 63 CHANGED_TO_EOL(line, win->_curx, win->_maxx); 64 while (temp1 > end) 65 *temp1-- = *temp2--; 66 67 *temp1 = _nc_render(win, *wch); 68 for (cell = 1; cell < cells; ++cell) { 69 SetWidecExt(temp1[cell], cell); 70 } 71 72 win->_curx++; 73 } 74 return OK; 75 } 76 77 NCURSES_EXPORT(int) 78 wins_wch(WINDOW *win, const cchar_t *wch) 79 { 80 NCURSES_SIZE_T oy; 81 NCURSES_SIZE_T ox; 82 int code = ERR; 83 84 T((T_CALLED("wins_wch(%p, %s)"), win, _tracecchar_t(wch))); 85 86 if (win != 0) { 87 oy = win->_cury; 88 ox = win->_curx; 89 90 code = _nc_insert_wch(win, wch); 91 92 win->_curx = ox; 93 win->_cury = oy; 94 _nc_synchook(win); 95 } 96 returnCode(code); 97 } 98 99 NCURSES_EXPORT(int) 100 wins_nwstr(WINDOW *win, const wchar_t *wstr, int n) 101 { 102 int code = ERR; 103 NCURSES_SIZE_T oy; 104 NCURSES_SIZE_T ox; 105 const wchar_t *cp; 106 107 T((T_CALLED("wins_nwstr(%p,%s,%d)"), win, _nc_viswbufn(wstr, n), n)); 108 109 if (win != 0 110 && wstr != 0) { 111 if (n < 1) 112 n = wcslen(wstr); 113 code = OK; 114 if (n > 0) { 115 oy = win->_cury; 116 ox = win->_curx; 117 for (cp = wstr; *cp && ((cp - wstr) < n); cp++) { 118 int len = wcwidth(*cp); 119 120 if (len != 1 || !is8bits(*cp)) { 121 cchar_t tmp_cchar; 122 wchar_t tmp_wchar = *cp; 123 memset(&tmp_cchar, 0, sizeof(tmp_cchar)); 124 (void) setcchar(&tmp_cchar, 125 &tmp_wchar, 126 WA_NORMAL, 127 0, 128 (void *) 0); 129 code = _nc_insert_wch(win, &tmp_cchar); 130 } else { 131 /* tabs, other ASCII stuff */ 132 code = _nc_insert_ch(win, (chtype) (*cp)); 133 } 134 if (code != OK) 135 break; 136 } 137 138 win->_curx = ox; 139 win->_cury = oy; 140 _nc_synchook(win); 141 } 142 } 143 returnCode(code); 144 } 145