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Diffstat (limited to 'ncurses/widechar/lib_ins_wch.c')
-rw-r--r--ncurses/widechar/lib_ins_wch.c144
1 files changed, 144 insertions, 0 deletions
diff --git a/ncurses/widechar/lib_ins_wch.c b/ncurses/widechar/lib_ins_wch.c
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+/****************************************************************************
+ * Copyright (c) 2002-2003,2005 Free Software Foundation, Inc. *
+ * *
+ * Permission is hereby granted, free of charge, to any person obtaining a *
+ * copy of this software and associated documentation files (the *
+ * "Software"), to deal in the Software without restriction, including *
+ * without limitation the rights to use, copy, modify, merge, publish, *
+ * distribute, distribute with modifications, sublicense, and/or sell *
+ * copies of the Software, and to permit persons to whom the Software is *
+ * furnished to do so, subject to the following conditions: *
+ * *
+ * The above copyright notice and this permission notice shall be included *
+ * in all copies or substantial portions of the Software. *
+ * *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
+ * *
+ * Except as contained in this notice, the name(s) of the above copyright *
+ * holders shall not be used in advertising or otherwise to promote the *
+ * sale, use or other dealings in this Software without prior written *
+ * authorization. *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Author: Thomas Dickey 2002 *
+ ****************************************************************************/
+
+/*
+** lib_ins_wch.c
+**
+** The routine wins_wch().
+**
+*/
+
+#include <curses.priv.h>
+
+MODULE_ID("$Id: lib_ins_wch.c,v 1.8 2005/12/03 20:24:19 tom Exp $")
+
+/*
+ * Insert the given character, updating the current location to simplify
+ * inserting a string.
+ */
+static int
+_nc_insert_wch(WINDOW *win, const cchar_t *wch)
+{
+ int cells = wcwidth(CharOf(CHDEREF(wch)));
+ int cell;
+
+ if (cells <= 0)
+ cells = 1;
+
+ if (win->_curx <= win->_maxx) {
+ struct ldat *line = &(win->_line[win->_cury]);
+ NCURSES_CH_T *end = &(line->text[win->_curx]);
+ NCURSES_CH_T *temp1 = &(line->text[win->_maxx]);
+ NCURSES_CH_T *temp2 = temp1 - cells;
+
+ CHANGED_TO_EOL(line, win->_curx, win->_maxx);
+ while (temp1 > end)
+ *temp1-- = *temp2--;
+
+ *temp1 = _nc_render(win, *wch);
+ for (cell = 1; cell < cells; ++cell) {
+ SetWidecExt(temp1[cell], cell);
+ }
+
+ win->_curx++;
+ }
+ return OK;
+}
+
+NCURSES_EXPORT(int)
+wins_wch(WINDOW *win, const cchar_t *wch)
+{
+ NCURSES_SIZE_T oy;
+ NCURSES_SIZE_T ox;
+ int code = ERR;
+
+ T((T_CALLED("wins_wch(%p, %s)"), win, _tracecchar_t(wch)));
+
+ if (win != 0) {
+ oy = win->_cury;
+ ox = win->_curx;
+
+ code = _nc_insert_wch(win, wch);
+
+ win->_curx = ox;
+ win->_cury = oy;
+ _nc_synchook(win);
+ }
+ returnCode(code);
+}
+
+NCURSES_EXPORT(int)
+wins_nwstr(WINDOW *win, const wchar_t *wstr, int n)
+{
+ int code = ERR;
+ NCURSES_SIZE_T oy;
+ NCURSES_SIZE_T ox;
+ const wchar_t *cp;
+
+ T((T_CALLED("wins_nwstr(%p,%s,%d)"), win, _nc_viswbufn(wstr, n), n));
+
+ if (win != 0
+ && wstr != 0) {
+ if (n < 1)
+ n = wcslen(wstr);
+ code = OK;
+ if (n > 0) {
+ oy = win->_cury;
+ ox = win->_curx;
+ for (cp = wstr; *cp && ((cp - wstr) < n); cp++) {
+ int len = wcwidth(*cp);
+
+ if (len != 1 || !is8bits(*cp)) {
+ cchar_t tmp_cchar;
+ wchar_t tmp_wchar = *cp;
+ memset(&tmp_cchar, 0, sizeof(tmp_cchar));
+ (void) setcchar(&tmp_cchar,
+ &tmp_wchar,
+ WA_NORMAL,
+ 0,
+ (void *) 0);
+ code = _nc_insert_wch(win, &tmp_cchar);
+ } else {
+ /* tabs, other ASCII stuff */
+ code = _nc_insert_ch(win, (chtype) (*cp));
+ }
+ if (code != OK)
+ break;
+ }
+
+ win->_curx = ox;
+ win->_cury = oy;
+ _nc_synchook(win);
+ }
+ }
+ returnCode(code);
+}