1 /* $OpenBSD: lib_addstr.c,v 1.5 2010/01/12 23:22:05 nicm Exp $ */ 2 3 /**************************************************************************** 4 * Copyright (c) 1998-2006,2007 Free Software Foundation, Inc. * 5 * * 6 * Permission is hereby granted, free of charge, to any person obtaining a * 7 * copy of this software and associated documentation files (the * 8 * "Software"), to deal in the Software without restriction, including * 9 * without limitation the rights to use, copy, modify, merge, publish, * 10 * distribute, distribute with modifications, sublicense, and/or sell * 11 * copies of the Software, and to permit persons to whom the Software is * 12 * furnished to do so, subject to the following conditions: * 13 * * 14 * The above copyright notice and this permission notice shall be included * 15 * in all copies or substantial portions of the Software. * 16 * * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 20 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 23 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 24 * * 25 * Except as contained in this notice, the name(s) of the above copyright * 26 * holders shall not be used in advertising or otherwise to promote the * 27 * sale, use or other dealings in this Software without prior written * 28 * authorization. * 29 ****************************************************************************/ 30 31 /**************************************************************************** 32 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 33 * and: Eric S. Raymond <esr@snark.thyrsus.com> * 34 * * 35 * Rewritten 2001-2004 to support wide-characters by * 36 * Sven Verdoolaege * 37 * Thomas Dickey * 38 ****************************************************************************/ 39 40 /* 41 ** lib_addstr.c 42 * 43 ** The routines waddnstr(), waddchnstr(). 44 ** 45 */ 46 47 #include <curses.priv.h> 48 49 MODULE_ID("$Id: lib_addstr.c,v 1.5 2010/01/12 23:22:05 nicm Exp $") 50 51 NCURSES_EXPORT(int) 52 waddnstr(WINDOW *win, const char *astr, int n) 53 { 54 const char *str = astr; 55 int code = ERR; 56 57 T((T_CALLED("waddnstr(%p,%s,%d)"), win, _nc_visbufn(astr, n), n)); 58 59 if (win && (str != 0)) { 60 TR(TRACE_VIRTPUT | TRACE_ATTRS, 61 ("... current %s", _traceattr(WINDOW_ATTRS(win)))); 62 code = OK; 63 if (n < 0) 64 n = (int) strlen(astr); 65 66 TR(TRACE_VIRTPUT, ("str is not null, length = %d", n)); 67 while ((n-- > 0) && (*str != '\0')) { 68 NCURSES_CH_T ch; 69 TR(TRACE_VIRTPUT, ("*str = %#o", UChar(*str))); 70 SetChar(ch, UChar(*str++), A_NORMAL); 71 if (_nc_waddch_nosync(win, ch) == ERR) { 72 code = ERR; 73 break; 74 } 75 } 76 _nc_synchook(win); 77 } 78 TR(TRACE_VIRTPUT, ("waddnstr returns %d", code)); 79 returnCode(code); 80 } 81 82 NCURSES_EXPORT(int) 83 waddchnstr(WINDOW *win, const chtype *astr, int n) 84 { 85 NCURSES_SIZE_T y, x; 86 int code = OK; 87 int i; 88 struct ldat *line; 89 90 T((T_CALLED("waddchnstr(%p,%p,%d)"), win, astr, n)); 91 92 if (!win) 93 returnCode(ERR); 94 95 y = win->_cury; 96 x = win->_curx; 97 if (n < 0) { 98 const chtype *str; 99 n = 0; 100 for (str = (const chtype *) astr; *str != 0; str++) 101 n++; 102 } 103 if (n > win->_maxx - x + 1) 104 n = win->_maxx - x + 1; 105 if (n == 0) 106 returnCode(code); 107 108 line = &(win->_line[y]); 109 for (i = 0; i < n && ChCharOf(astr[i]) != '\0'; ++i) { 110 SetChar2(line->text[i + x], astr[i]); 111 } 112 CHANGED_RANGE(line, x, x + n - 1); 113 114 _nc_synchook(win); 115 returnCode(code); 116 } 117 118 #if USE_WIDEC_SUPPORT 119 120 NCURSES_EXPORT(int) 121 _nc_wchstrlen(const cchar_t *s) 122 { 123 int result = 0; 124 while (CharOf(s[result]) != L'\0') { 125 result++; 126 } 127 return result; 128 } 129 130 NCURSES_EXPORT(int) 131 wadd_wchnstr(WINDOW *win, const cchar_t *astr, int n) 132 { 133 static const NCURSES_CH_T blank = NewChar(BLANK_TEXT); 134 NCURSES_SIZE_T y; 135 NCURSES_SIZE_T x; 136 int code = OK; 137 struct ldat *line; 138 int i, j, start, len, end; 139 140 T((T_CALLED("wadd_wchnstr(%p,%s,%d)"), win, _nc_viscbuf(astr, n), n)); 141 142 if (!win) 143 returnCode(ERR); 144 145 y = win->_cury; 146 x = win->_curx; 147 if (n < 0) { 148 n = _nc_wchstrlen(astr); 149 } 150 if (n > win->_maxx - x + 1) 151 n = win->_maxx - x + 1; 152 if (n == 0) 153 returnCode(code); 154 155 line = &(win->_line[y]); 156 start = x; 157 end = x + n - 1; 158 159 /* 160 * Reset orphaned cells of multi-column characters that extend up to the 161 * new string's location to blanks. 162 */ 163 if (x > 0 && isWidecExt(line->text[x])) { 164 for (i = 0; i <= x; ++i) { 165 if (!isWidecExt(line->text[x - i])) { 166 /* must be isWidecBase() */ 167 start -= i; 168 while (i > 0) { 169 line->text[x - i--] = _nc_render(win, blank); 170 } 171 break; 172 } 173 } 174 } 175 176 /* 177 * Copy the new string to the window. 178 */ 179 for (i = 0; i < n && CharOf(astr[i]) != L'\0' && x <= win->_maxx; ++i) { 180 if (isWidecExt(astr[i])) 181 continue; 182 183 len = wcwidth(CharOf(astr[i])); 184 185 if (x + len - 1 <= win->_maxx) { 186 line->text[x] = _nc_render(win, astr[i]); 187 if (len > 1) { 188 for (j = 0; j < len; ++j) { 189 if (j != 0) { 190 line->text[x + j] = line->text[x]; 191 } 192 SetWidecExt(line->text[x + j], j); 193 } 194 } 195 x += len; 196 end += len - 1; 197 } else { 198 break; 199 } 200 } 201 202 /* 203 * Set orphaned cells of multi-column characters which lie after the new 204 * string to blanks. 205 */ 206 while (x <= win->_maxx && isWidecExt(line->text[x])) { 207 line->text[x] = _nc_render(win, blank); 208 ++end; 209 ++x; 210 } 211 CHANGED_RANGE(line, start, end); 212 213 _nc_synchook(win); 214 returnCode(code); 215 } 216 217 NCURSES_EXPORT(int) 218 waddnwstr(WINDOW *win, const wchar_t *str, int n) 219 { 220 int code = ERR; 221 222 T((T_CALLED("waddnwstr(%p,%s,%d)"), win, _nc_viswbufn(str, n), n)); 223 224 if (win && (str != 0)) { 225 TR(TRACE_VIRTPUT | TRACE_ATTRS, 226 ("... current %s", _traceattr(WINDOW_ATTRS(win)))); 227 code = OK; 228 if (n < 0) 229 n = (int) wcslen(str); 230 231 TR(TRACE_VIRTPUT, ("str is not null, length = %d", n)); 232 while ((n-- > 0) && (*str != L('\0'))) { 233 NCURSES_CH_T ch; 234 TR(TRACE_VIRTPUT, ("*str[0] = %#lx", (unsigned long) *str)); 235 SetChar(ch, *str++, A_NORMAL); 236 if (wadd_wch(win, &ch) == ERR) { 237 code = ERR; 238 break; 239 } 240 } 241 _nc_synchook(win); 242 } 243 TR(TRACE_VIRTPUT, ("waddnwstr returns %d", code)); 244 returnCode(code); 245 } 246 247 #endif 248