mirror of
https://github.com/Aigor44/ncursesw-morphos.git
synced 2024-12-27 07:49:06 +08:00
1078c0231b
+ finish changes to wgetch(), making it switch as needed to the window's actual screen when calling wrefresh() and wgetnstr(). That allows wgetch() to get used concurrently in different threads with some minor restrictions, e.g., the application should not delete a window which is being used in a wgetch(). + simplify mutex's, combining the window- and screen-mutex's.
104 lines
3.6 KiB
C
104 lines
3.6 KiB
C
/****************************************************************************
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* Copyright (c) 2002-2007,2008 Free Software Foundation, Inc. *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a *
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* copy of this software and associated documentation files (the *
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* "Software"), to deal in the Software without restriction, including *
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* without limitation the rights to use, copy, modify, merge, publish, *
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* distribute, distribute with modifications, sublicense, and/or sell *
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* copies of the Software, and to permit persons to whom the Software is *
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* furnished to do so, subject to the following conditions: *
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* *
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* The above copyright notice and this permission notice shall be included *
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* in all copies or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
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* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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* *
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* Except as contained in this notice, the name(s) of the above copyright *
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* holders shall not be used in advertising or otherwise to promote the *
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* sale, use or other dealings in this Software without prior written *
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* authorization. *
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****************************************************************************/
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/****************************************************************************
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* Author: Thomas E. Dickey 2002 *
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****************************************************************************/
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/*
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** lib_unget_wch.c
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**
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** The routine unget_wch().
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**
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*/
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#include <curses.priv.h>
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MODULE_ID("$Id: lib_unget_wch.c,v 1.10 2008/06/07 14:50:37 tom Exp $")
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/*
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* Wrapper for wcrtomb() which obtains the length needed for the given
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* wide-character 'source'.
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*/
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NCURSES_EXPORT(size_t)
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_nc_wcrtomb(char *target, wchar_t source, mbstate_t * state)
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{
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int result;
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if (target == 0) {
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wchar_t temp[2];
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const wchar_t *tempp = temp;
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temp[0] = source;
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temp[1] = 0;
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result = wcsrtombs(NULL, &tempp, 0, state);
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} else {
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result = wcrtomb(target, source, state);
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}
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if (!isEILSEQ(result) && (result == 0))
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result = 1;
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return result;
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}
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NCURSES_EXPORT(int)
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unget_wch(const wchar_t wch)
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{
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int result = OK;
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mbstate_t state;
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size_t length;
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int n;
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T((T_CALLED("unget_wch(%#lx)"), (unsigned long) wch));
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init_mb(state);
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length = _nc_wcrtomb(0, wch, &state);
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if (length != (size_t) (-1)
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&& length != 0) {
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char *string;
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if ((string = (char *) malloc(length)) != 0) {
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init_mb(state);
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wcrtomb(string, wch, &state);
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for (n = (int) (length - 1); n >= 0; --n) {
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if (_nc_ungetch(SP, string[n]) != OK) {
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result = ERR;
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break;
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}
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}
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free(string);
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} else {
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result = ERR;
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}
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} else {
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result = ERR;
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}
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returnCode(result);
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}
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