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/****************************************************************************
* Copyright (c) 1998-2001,2002 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: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
* and: Eric S. Raymond <esr@snark.thyrsus.com> *
****************************************************************************/
/*
** lib_addstr.c
*
** The routines waddnstr(), waddchnstr().
**
*/
#include <curses.priv.h>
MODULE_ID("$Id$")
#if USE_WIDEC_SUPPORT
#define CONV_DATA mbstate_t state; wchar_t cached; int clen = 0
#define CONV_INIT memset (&state, '\0', sizeof (state)); cached = (wchar_t)WEOF
#define NEXT_CHAR(s,ch, n) \
{ \
int len, i = 0; \
memset(&ch, 0, sizeof(cchar_t)); \
if (cached != (wchar_t) WEOF) { \
ch.chars[i++] = cached; \
cached = (wchar_t) WEOF; \
n -= clen; \
s += clen; \
} \
for (; i < CCHARW_MAX && n > 0; ++i) { \
if ((len = mbrtowc(&ch.chars[i], s, n, &state)) < 0) { \
code = ERR; \
break; \
} \
if (i == 0 || wcwidth(ch.chars[i]) == 0) { \
n -= len; \
s += len; \
} else { \
cached = ch.chars[i]; \
clen = len; \
ch.chars[i] = L'\0'; \
break; \
} \
} \
if (code == ERR) \
break; \
}
#else
#define CONV_DATA
#define CONV_INIT
#define NEXT_CHAR(s,ch, n) \
ch = *s++; \
--n
#endif
NCURSES_EXPORT(int)
waddnstr(WINDOW *win, const char *astr, int n)
{
unsigned const char *str = (unsigned const char *) astr;
int code = ERR;
CONV_DATA;
T((T_CALLED("waddnstr(%p,%s,%d)"), win, _nc_visbufn(astr, n), n));
if (win && (str != 0)) {
TR(TRACE_VIRTPUT | TRACE_ATTRS, ("... current %s", _traceattr(win->_attrs)));
code = OK;
if (n < 0)
n = (int) strlen(astr);
TR(TRACE_VIRTPUT, ("str is not null, length = %d", n));
CONV_INIT;
while ((n > 0) && (*str != '\0')) {
NCURSES_CH_T ch;
TR(TRACE_VIRTPUT, ("*str = %#x", *str));
NEXT_CHAR(str, ch, n);
if (_nc_waddch_nosync(win, ch) == ERR) {
code = ERR;
break;
}
}
_nc_synchook(win);
}
TR(TRACE_VIRTPUT, ("waddnstr returns %d", code));
returnCode(code);
}
NCURSES_EXPORT(int)
waddchnstr(WINDOW *win, const chtype * astr, int n)
{
NCURSES_SIZE_T y = win->_cury;
NCURSES_SIZE_T x = win->_curx;
int code = OK;
struct ldat *line;
T((T_CALLED("waddchnstr(%p,%p,%d)"), win, astr, n));
if (!win)
returnCode(ERR);
if (n < 0) {
const chtype *str;
n = 0;
for (str = (const chtype *) astr; *str != 0; str++)
n++;
}
if (n > win->_maxx - x + 1)
n = win->_maxx - x + 1;
if (n == 0)
returnCode(code);
line = &(win->_line[y]);
#if USE_WIDEC_SUPPORT
{
int i;
for (i = 0; i < n; ++i)
SetChar(line->text[i + x], ChCharOf(astr[i]), ChAttrOf(astr[i]));
}
#else
memcpy(line->text + x, astr, n * sizeof(*astr));
#endif
CHANGED_RANGE(line, x, x + n - 1);
_nc_synchook(win);
returnCode(code);
}
#if USE_WIDEC_SUPPORT
int
_nc_wchstrlen(const cchar_t * s)
{
int result = 0;
while (CharOf(s[result]) != L'\0') {
result++;
}
return result;
}
NCURSES_EXPORT(int)
wadd_wchnstr(WINDOW *win, const cchar_t * const astr, int n)
{
NCURSES_SIZE_T y = win->_cury;
NCURSES_SIZE_T x = win->_curx;
int code = OK;
struct ldat *line;
int i, start, end;
T((T_CALLED("wadd_wchnstr(%p,%s,%d)"), win, _nc_viscbuf(astr, n), n));
if (!win)
returnCode(ERR);
if (n < 0) {
n = _nc_wchstrlen(astr);
}
if (n > win->_maxx - x + 1)
n = win->_maxx - x + 1;
if (n == 0)
returnCode(code);
line = &(win->_line[y]);
start = x;
end = x + n - 1;
if (isnac(line->text[x])) {
line->text[x - 1] = win->_nc_bkgd;
--start;
}
for (i = 0; i < n && x <= win->_maxx; ++i) {
line->text[x++] = astr[i];
if (wcwidth(CharOf(astr[i])) > 1) {
if (x <= win->_maxx)
AddAttr(line->text[x++], WA_NAC);
else
line->text[x - 1] = win->_nc_bkgd;
}
}
if (x <= win->_maxx && isnac(line->text[x])) {
line->text[x] = win->_nc_bkgd;
++end;
}
CHANGED_RANGE(line, start, end);
_nc_synchook(win);
returnCode(code);
}
NCURSES_EXPORT(int)
waddnwstr(WINDOW *win, const wchar_t * str, int n)
{
int code = ERR;
int i;
T((T_CALLED("waddnwstr(%p,%s,%d)"), win, _nc_viswbufn(str,n), n));
if (win && (str != 0)) {
TR(TRACE_VIRTPUT | TRACE_ATTRS, ("... current %s", _traceattr(win->_attrs)));
code = OK;
if (n < 0)
n = (int) wcslen(str);
TR(TRACE_VIRTPUT, ("str is not null, length = %d", n));
while ((n-- > 0) && (*str != L('\0'))) {
NCURSES_CH_T ch;
TR(TRACE_VIRTPUT, ("*str[0] = %#lx", *str));
SetChar(ch, *str++, A_NORMAL);
i = 1;
while (i < CCHARW_MAX && n > 0 && (*str != L('\0'))
&& wcwidth(*str) == 0) {
TR(TRACE_VIRTPUT, ("*str[%d] = %#lx", i, *str));
ch.chars[i++] = *str++;
--n;
}
if (_nc_waddch_nosync(win, ch) == ERR) {
code = ERR;
break;
}
}
_nc_synchook(win);
}
TR(TRACE_VIRTPUT, ("waddnwstr returns %d", code));
returnCode(code);
}
#endif
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