/****************************************************************************
* Copyright 2019,2020 Thomas E. Dickey *
* Copyright 1998-2016,2017 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> *
* *
* Rewritten 2001-2004 to support wide-characters by *
* Sven Verdoolaege *
* Thomas Dickey *
****************************************************************************/
/*
** lib_addstr.c
*
** The routines waddnstr(), waddchnstr().
**
*/
#include <curses.priv.h>
MODULE_ID("$Id: lib_addstr.c,v 1.56 2020/02/02 23:34:34 tom Exp $")
NCURSES_EXPORT(int)
waddnstr(WINDOW *win, const char *astr, int n)
{
const char *str = astr;
int code = ERR;
T((T_CALLED("waddnstr(%p,%s,%d)"), (void *) win, _nc_visbufn(astr, n), n));
if (win && (str != 0)) {
TR(TRACE_VIRTPUT | TRACE_ATTRS,
("... current %s", _traceattr(WINDOW_ATTRS(win))));
code = OK;
if (n < 0)
n = (int) strlen(astr);
TR(TRACE_VIRTPUT, ("str is not null, length = %d", n));
while ((n-- > 0) && (*str != '\0')) {
NCURSES_CH_T ch;
TR(TRACE_VIRTPUT, ("*str = %#o", UChar(*str)));
SetChar(ch, UChar(*str++), A_NORMAL);
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, x;
int code = OK;
int i;
struct ldat *line;
T((T_CALLED("waddchnstr(%p,%p,%d)"), (void *) win, (const void *) astr, n));
if (!win || !astr)
returnCode(ERR);
y = win->_cury;
x = win->_curx;
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]);
for (i = 0; i < n && ChCharOf(astr[i]) != '\0'; ++i) {
SetChar2(line->text[i + x], astr[i]);
}
CHANGED_RANGE(line, x, (NCURSES_SIZE_T) (x + n - 1));
_nc_synchook(win);
returnCode(code);
}
#if USE_WIDEC_SUPPORT
NCURSES_EXPORT(int)
_nc_wchstrlen(const cchar_t *s)
{
int result = 0;
if (s != 0) {
while (CharOf(s[result]) != L'\0') {
result++;
}
}
return result;
}
NCURSES_EXPORT(int)
wadd_wchnstr(WINDOW *win, const cchar_t *astr, int n)
{
static const NCURSES_CH_T blank = NewChar(BLANK_TEXT);
NCURSES_SIZE_T y;
NCURSES_SIZE_T x;
int code = OK;
struct ldat *line;
int i, j, start, len, end;
T((T_CALLED("wadd_wchnstr(%p,%s,%d)"),
(void *) win,
_nc_viscbuf(astr, n),
n));
if (!win)
returnCode(ERR);
y = win->_cury;
x = win->_curx;
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;
/*
* Reset orphaned cells of multi-column characters that extend up to the
* new string's location to blanks.
*/
if (x > 0 && isWidecExt(line->text[x])) {
for (i = 0; i <= x; ++i) {
if (!isWidecExt(line->text[x - i])) {
/* must be isWidecBase() */
start -= i;
while (i > 0) {
line->text[x - i--] = _nc_render(win, blank);
}
break;
}
}
}
/*
* Copy the new string to the window.
*/
for (i = 0; i < n && CharOf(astr[i]) != L'\0' && x <= win->_maxx; ++i) {
if (isWidecExt(astr[i]))
continue;
len = _nc_wacs_width(CharOf(astr[i]));
if (x + len - 1 <= win->_maxx) {
line->text[x] = _nc_render(win, astr[i]);
if (len > 1) {
for (j = 0; j < len; ++j) {
if (j != 0) {
line->text[x + j] = line->text[x];
}
SetWidecExt(line->text[x + j], j);
}
} else {
len = 1;
}
x = (NCURSES_SIZE_T) (x + len);
end += len - 1;
} else {
break;
}
}
/*
* Set orphaned cells of multi-column characters which lie after the new
* string to blanks.
*/
while (x <= win->_maxx && isWidecExt(line->text[x])) {
line->text[x] = _nc_render(win, blank);
++end;
++x;
}
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;
T((T_CALLED("waddnwstr(%p,%s,%d)"), (void *) win, _nc_viswbufn(str, n), n));
if (win && (str != 0)) {
TR(TRACE_VIRTPUT | TRACE_ATTRS,
("... current %s", _traceattr(WINDOW_ATTRS(win))));
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", (unsigned long) *str));
SetChar(ch, *str++, A_NORMAL);
if (wadd_wch(win, &ch) == ERR) {
code = ERR;
break;
}
}
_nc_synchook(win);
}
TR(TRACE_VIRTPUT, ("waddnwstr returns %d", code));
returnCode(code);
}
#endif
