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6 * "Software"), to deal in the Software without restriction, including *
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13 * in all copies or substantial portions of the Software. *
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27 ****************************************************************************/
29 /****************************************************************************
30 * Author: Thomas E. Dickey *
31 ****************************************************************************/
36 ** The routine wgetn_wstr().
40 #include <curses.priv.h>
43 MODULE_ID("$Id: lib_get_wstr.c,v 1.10 2008/08/16 19:25:33 tom Exp $")
46 wadd_wint(WINDOW *win, wint_t *src)
51 wch[0] = (wchar_t) (*src);
53 setcchar(&tmp, wch, A_NORMAL, 0, NULL);
54 return wadd_wch(win, &tmp);
58 * This wipes out the last character, no matter whether it was a tab, control
59 * or other character, and handles reverse wraparound.
62 WipeOut(WINDOW *win, int y, int x, wint_t *first, wint_t *last, bool echoed)
72 for (n = 0; first[n] != 0; ++n) {
73 wadd_wint(win, first + n);
76 while (win->_cury < y1
77 || (win->_cury == y1 && win->_curx < x1))
78 waddch(win, (chtype) ' ');
87 wgetn_wstr(WINDOW *win, wint_t *str, int maxlen)
89 SCREEN *sp = _nc_screen_of(win);
91 bool oldnl, oldecho, oldraw, oldcbreak;
99 T((T_CALLED("wgetn_wstr(%p,%p, %d)"), win, str, maxlen));
104 _nc_get_tty_mode(&buf);
109 oldcbreak = sp->_cbreak;
115 erasec = (wint_t) erasechar();
116 killc = (wint_t) killchar();
120 if (is_wintouched(win) || (win->_flags & _HASMOVED))
123 while ((code = wget_wch(win, &ch)) != ERR) {
125 * Map special characters into key-codes.
143 if (code == KEY_CODE_YES) {
145 * Some terminals (the Wyse-50 is the most common) generate a \n
146 * from the down-arrow key. With this logic, it's the user's
147 * choice whether to set kcud=\n for wget_wch(); terminating
148 * *getn_wstr() with \n should work either way.
150 if (ch == KEY_DOWN || ch == KEY_ENTER) {
152 && win->_cury == win->_maxy
154 wechochar(win, (chtype) '\n');
157 if (ch == KEY_LEFT || ch == KEY_BACKSPACE) {
158 if (tmpstr > oldstr) {
159 tmpstr = WipeOut(win, y, x, oldstr, tmpstr, oldecho);
161 } else if (ch == KEY_EOL) {
162 while (tmpstr > oldstr) {
163 tmpstr = WipeOut(win, y, x, oldstr, tmpstr, oldecho);
168 } else if (maxlen >= 0 && tmpstr - oldstr >= maxlen) {
173 if (oldecho == TRUE) {
174 int oldy = win->_cury;
176 if (wadd_wint(win, tmpstr - 1) == ERR) {
178 * We can't really use the lower-right corner for input,
179 * since it'll mess up bookkeeping for erases.
181 win->_flags &= ~_WRAPPED;
182 waddch(win, (chtype) ' ');
183 tmpstr = WipeOut(win, y, x, oldstr, tmpstr, oldecho);
185 } else if (win->_flags & _WRAPPED) {
187 * If the last waddch forced a wrap & scroll, adjust our
188 * reference point for erasures.
191 && oldy == win->_maxy
192 && win->_cury == win->_maxy) {
197 win->_flags &= ~_WRAPPED;
205 win->_flags &= ~_WRAPPED;
206 if (win->_cury < win->_maxy)
210 /* Restore with a single I/O call, to fix minor asymmetry between
216 sp->_cbreak = oldcbreak;
218 (void) _nc_set_tty_mode(&buf);
222 if (tmpstr == oldstr) {
229 T(("wgetn_wstr returns %s", _nc_viswibuf(oldstr)));