/*
* Print a `one-liner' status message at the bottom of the screen. Messages are
* trimmed to fit within the console length (ANSI coloring not accounted for).
*/
void
status_printf(const char *fmt, ...)
{
int n, attrs;
chtype color = dlg_color_pair(dlg_color_table[BUTTON_ACTIVE_ATTR].fg,
dlg_color_table[SCREEN_ATTR].bg) | A_BOLD;
va_list args;
status_row = tty_maxrows() - 1;
status_width = tty_maxcols();
/* NULL is a special convention meaning "erase the old stuff" */
if (fmt == NULL) {
move(status_row, 0);
clrtoeol();
return;
}
/* Resize buffer if terminal width is greater */
if ((status_width + 1) > status_bufsize) {
status_buf = realloc(status_buf, status_width + 1);
if (status_buf == NULL) {
status_bufsize = -1;
return;
}
status_bufsize = status_width + 1;
}
/* Print the message within a space-filled buffer */
memset(status_buf, ' ', status_width);
va_start(args, fmt);
n = vsnprintf(status_buf, status_width + 1, fmt, args);
va_end(args);
/* If vsnprintf(3) produced less bytes than the maximum, change the
* implicitly-added NUL-terminator into a space and terminate at max */
if (n < status_width) {
status_buf[n] = ' ';
status_buf[status_width] = '\0';
}
/* Print text in screen bg, button active fg, and bold */
attrs = getattrs(stdscr);
attrset(color);
mvaddstr(status_row, 0, status_buf);
attrset(attrs);
/* Seat the cursor over the last character at absolute lower-right */
move(status_row, status_width - 1);
refresh();
}
static chtype
merge_colors(chtype foreground, chtype background)
{
chtype result = foreground;
if ((foreground & A_COLOR) != (background & A_COLOR)) {
short fg_f, bg_f;
short fg_b, bg_b;
short fg_pair = (short) PAIR_NUMBER(foreground);
short bg_pair = (short) PAIR_NUMBER(background);
if (pair_content(fg_pair, &fg_f, &bg_f) != ERR
&& pair_content(bg_pair, &fg_b, &bg_b) != ERR) {
result &= ~A_COLOR;
result |= dlg_color_pair(fg_f, bg_b);
}
}
return result;
}
