Function tty_curs

win/tty/wintty.c:2057–2158

}

void
tty_curs(
    winid window,
    int x, int y)  /* coordinates (and curx-x) must be signed */
{
    struct WinDesc *cw = 0;
    int cx = ttyDisplay->curx;
    int cy = ttyDisplay->cury;

    HUPSKIP();
    if (window == WIN_ERR || (cw = wins[window]) == (struct WinDesc *) 0)
        ttywindowpanic();
    ttyDisplay->lastwin = window;

    print_vt_code2(AVTC_SELECT_WINDOW, window);

#if defined(TILES_IN_GLYPHMAP) && defined(MSDOS)
    adjust_cursor_flags(cw);
#endif

#ifdef DEBUG
    if (x < 1 || y < 0 || y >= cw->rows || x > cw->cols) {
        const char *s = "[unknown type]";

        switch (cw->type) {
        case NHW_MESSAGE:
            s = "[topl window]";
            break;
        case NHW_STATUS:
            s = "[status window]";
            break;
        case NHW_MAP:
            s = "[map window]";
            break;
        case NHW_MENU:
            s = "[corner window]";
            break;
        case NHW_TEXT:
            s = "[text window]";
            break;
        case NHW_BASE:
            s = "[base window]";
            break;
        }
        /* avoid sending a line to the message window if we're complaining
           about cursor positioning in message window; perhaps raw_printf?
           this ought to be using impossible() so that someone might
           actually see it */
        if (cw->type != NHW_MESSAGE)
            debugpline4("tty_curs: bad positioning win %d %s <%d,%d>",
                        window, s, x, y);
        /* don't try to fix up x,y here because then tty_curs() would
           behave differently depending on whether DEBUG is defined;
           garbage in, garbage out is the order of the day... */
    }
#endif /* DEBUG */
    cw->curx = --x; /* column 0 is not used */
    cw->cury = y;