1 /**************************************************************************** 2 * Copyright (c) 1998-2009,2010 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 * Rewritten 2001-2004 to support wide-characters by * 34 * Sven Verdoolaege * 35 * Thomas Dickey * 36 ****************************************************************************/ 37 38 /* 39 ** lib_addstr.c 40 * 41 ** The routines waddnstr(), waddchnstr(). 42 ** 43 */ 44 45 #include <curses.priv.h> 46 47 MODULE_ID("$Id: lib_addstr.c,v 1.51 2010/12/19 01:22:58 tom Exp $") 48 49 NCURSES_EXPORT(int) 50 waddnstr(WINDOW *win, const char *astr, int n) 51 { 52 const char *str = astr; 53 int code = ERR; 54 55 T((T_CALLED("waddnstr(%p,%s,%d)"), (void *) win, _nc_visbufn(astr, n), n)); 56 57 if (win && (str != 0)) { 58 TR(TRACE_VIRTPUT | TRACE_ATTRS, 59 ("... current %s", _traceattr(WINDOW_ATTRS(win)))); 60 code = OK; 61 if (n < 0) 62 n = (int) strlen(astr); 63 64 TR(TRACE_VIRTPUT, ("str is not null, length = %d", n)); 65 while ((n-- > 0) && (*str != '\0')) { 66 NCURSES_CH_T ch; 67 TR(TRACE_VIRTPUT, ("*str = %#o", UChar(*str))); 68 SetChar(ch, UChar(*str++), A_NORMAL); 69 if (_nc_waddch_nosync(win, ch) == ERR) { 70 code = ERR; 71 break; 72 } 73 } 74 _nc_synchook(win); 75 } 76 TR(TRACE_VIRTPUT, ("waddnstr returns %d", code)); 77 returnCode(code); 78 } 79 80 NCURSES_EXPORT(int) 81 waddchnstr(WINDOW *win, const chtype *astr, int n) 82 { 83 NCURSES_SIZE_T y, x; 84 int code = OK; 85 int i; 86 struct ldat *line; 87 88 T((T_CALLED("waddchnstr(%p,%p,%d)"), (void *) win, (const void *) astr, n)); 89 90 if (!win) 91 returnCode(ERR); 92 93 y = win->_cury; 94 x = win->_curx; 95 if (n < 0) { 96 const chtype *str; 97 n = 0; 98 for (str = (const chtype *) astr; *str != 0; str++) 99 n++; 100 } 101 if (n > win->_maxx - x + 1) 102 n = win->_maxx - x + 1; 103 if (n == 0) 104 returnCode(code); 105 106 line = &(win->_line[y]); 107 for (i = 0; i < n && ChCharOf(astr[i]) != '\0'; ++i) { 108 SetChar2(line->text[i + x], astr[i]); 109 } 110 CHANGED_RANGE(line, x, (NCURSES_SIZE_T) (x + n - 1)); 111 112 _nc_synchook(win); 113 returnCode(code); 114 } 115 116 #if USE_WIDEC_SUPPORT 117 118 NCURSES_EXPORT(int) 119 _nc_wchstrlen(const cchar_t *s) 120 { 121 int result = 0; 122 while (CharOf(s[result]) != L'\0') { 123 result++; 124 } 125 return result; 126 } 127 128 NCURSES_EXPORT(int) 129 wadd_wchnstr(WINDOW *win, const cchar_t *astr, int n) 130 { 131 static const NCURSES_CH_T blank = NewChar(BLANK_TEXT); 132 NCURSES_SIZE_T y; 133 NCURSES_SIZE_T x; 134 int code = OK; 135 struct ldat *line; 136 int i, j, start, len, end; 137 138 T((T_CALLED("wadd_wchnstr(%p,%s,%d)"), 139 (void *) win, 140 _nc_viscbuf(astr, n), 141 n)); 142 143 if (!win) 144 returnCode(ERR); 145 146 y = win->_cury; 147 x = win->_curx; 148 if (n < 0) { 149 n = _nc_wchstrlen(astr); 150 } 151 if (n > win->_maxx - x + 1) 152 n = win->_maxx - x + 1; 153 if (n == 0) 154 returnCode(code); 155 156 line = &(win->_line[y]); 157 start = x; 158 end = x + n - 1; 159 160 /* 161 * Reset orphaned cells of multi-column characters that extend up to the 162 * new string's location to blanks. 163 */ 164 if (x > 0 && isWidecExt(line->text[x])) { 165 for (i = 0; i <= x; ++i) { 166 if (!isWidecExt(line->text[x - i])) { 167 /* must be isWidecBase() */ 168 start -= i; 169 while (i > 0) { 170 line->text[x - i--] = _nc_render(win, blank); 171 } 172 break; 173 } 174 } 175 } 176 177 /* 178 * Copy the new string to the window. 179 */ 180 for (i = 0; i < n && CharOf(astr[i]) != L'\0' && x <= win->_maxx; ++i) { 181 if (isWidecExt(astr[i])) 182 continue; 183 184 len = wcwidth(CharOf(astr[i])); 185 186 if (x + len - 1 <= win->_maxx) { 187 line->text[x] = _nc_render(win, astr[i]); 188 if (len > 1) { 189 for (j = 0; j < len; ++j) { 190 if (j != 0) { 191 line->text[x + j] = line->text[x]; 192 } 193 SetWidecExt(line->text[x + j], j); 194 } 195 } 196 x = (NCURSES_SIZE_T) (x + len); 197 end += len - 1; 198 } else { 199 break; 200 } 201 } 202 203 /* 204 * Set orphaned cells of multi-column characters which lie after the new 205 * string to blanks. 206 */ 207 while (x <= win->_maxx && isWidecExt(line->text[x])) { 208 line->text[x] = _nc_render(win, blank); 209 ++end; 210 ++x; 211 } 212 CHANGED_RANGE(line, start, end); 213 214 _nc_synchook(win); 215 returnCode(code); 216 } 217 218 NCURSES_EXPORT(int) 219 waddnwstr(WINDOW *win, const wchar_t *str, int n) 220 { 221 int code = ERR; 222 223 T((T_CALLED("waddnwstr(%p,%s,%d)"), (void *) win, _nc_viswbufn(str, n), n)); 224 225 if (win && (str != 0)) { 226 TR(TRACE_VIRTPUT | TRACE_ATTRS, 227 ("... current %s", _traceattr(WINDOW_ATTRS(win)))); 228 code = OK; 229 if (n < 0) 230 n = (int) wcslen(str); 231 232 TR(TRACE_VIRTPUT, ("str is not null, length = %d", n)); 233 while ((n-- > 0) && (*str != L('\0'))) { 234 NCURSES_CH_T ch; 235 TR(TRACE_VIRTPUT, ("*str[0] = %#lx", (unsigned long) *str)); 236 SetChar(ch, *str++, A_NORMAL); 237 if (wadd_wch(win, &ch) == ERR) { 238 code = ERR; 239 break; 240 } 241 } 242 _nc_synchook(win); 243 } 244 TR(TRACE_VIRTPUT, ("waddnwstr returns %d", code)); 245 returnCode(code); 246 } 247 248 #endif 249