static void write_color_chars (SLcurses_Cell_Type *p, unsigned int len)
{
int color = -1;
unsigned int i;
for (i = 0; i < len; i++)
{
SLwchar_Type ch;
int this_color;
int j;
if (p[i].main == SLCURSES_NULLATTR)
continue; /* prev char was multicolumn */
ch = SLCURSES_EXTRACT_CHAR(p[i].main);
this_color = SLCURSES_EXTRACT_COLOR(p[i].main);
if (this_color != color)
{
SLsmg_set_color (this_color);
color = this_color;
}
if (p[i].is_acs)
SLsmg_set_char_set (1);
SLsmg_write_char (ch);
for (j = 0; j < SLSMG_MAX_CHARS_PER_CELL-1; j++)
{
SLwchar_Type combining = p[i].combining[j];
if (combining == SLCURSES_NULLCHAR)
break; /* no more combining chars */
SLsmg_write_char (combining);
}
if (p[i].is_acs)
SLsmg_set_char_set (0);
}
}
int SLcurses_waddch (SLcurses_Window_Type *win, SLcurses_Char_Type attr)
{
SLcurses_Char_Type ch;
SLsmg_Color_Type color;
int width;
int is_acs;
if (win == NULL) return -1;
if (win->_cury >= win->nrows)
{
/* Curses seems to move current position to top of window. */
win->_cury = win->_curx = 0;
return -1;
}
win->modified = 1;
ch = SLCURSES_EXTRACT_CHAR(attr);
if (ch == 0) return -1;
if (attr == ch)
color = win->color;
else
{
/* hack to pick up the default color for graphics chars */
if (((attr & A_COLOR) == 0) && ((attr & A_ALTCHARSET) != 0))
{
SLCURSES_BUILD_CHAR(attr, attr, win->color);
}
color = map_attr_to_object (attr);
}
is_acs = attr & A_ALTCHARSET;
if (SLwchar_iscntrl((SLwchar_Type)ch))
{
if (ch == '\n')
{
SLcurses_wclrtoeol (win);
return do_newline (win);
}
if (ch == '\r')
{
win->_curx = 0;
return 0;
}
if (ch == '\b')
{
if (win->_curx > 0)
win->_curx--;
return 0;
}
if (ch == '\t')
{
int err;
do
err = SLcurses_waddch (win, (SLtt_Char_Type)' ');
while (err == 0 && win->_curx % SLsmg_Tab_Width != 0);
return err;
}
}
width = SLwchar_isprint (ch)
? (SLsmg_is_utf8_mode ()
? SLwchar_wcwidth (ch)
: 1)
: 0;
if (win->_curx + width > win->ncols)
{
SLcurses_wclrtoeol (win);
do_newline (win);
}
SLcurses_placechar (win, ch, width, color, is_acs);
win->_curx += width;
return 0;
}
