extern char **pty_argv;	       /* declared in pty.c */
extern int use_pty_argv;

struct gui_data {
    GtkWidget *window, *area, *sbar;
    GtkBox *hbox;
    GtkAdjustment *sbar_adjust;
    GtkWidget *menu, *specialsmenu, *specialsitem1, *specialsitem2;
    GtkWidget *menu, *specialsmenu, *specialsitem1, *specialsitem2,
	*restartitem;
    GtkWidget *sessionsmenu;
    GdkPixmap *pixmap;
    GdkFont *fonts[4];                 /* normal, bold, wide, widebold */
    struct {
	int charset;
	int is_wide;
    } fontinfo[4];

    GdkGC *gc;
    struct gui_data *inst;
};

static int send_raw_mouse;

static char *app_name = "pterm";

static void start_backend(struct gui_data *inst);

char *x_get_default(const char *key)
{
    return XGetDefault(GDK_DISPLAY(), app_name, key);
}

void connection_fatal(void *frontend, char *p, ...)

	if (special) {
	    /*
	     * For special control characters, the character set
	     * should never matter.
	     */
	    output[end] = '\0';	       /* NUL-terminate */
	    if (inst->ldisc)
	    ldisc_send(inst->ldisc, output+start, -2, 1);
		ldisc_send(inst->ldisc, output+start, -2, 1);
	} else if (!inst->direct_to_font) {
	    if (!use_ucsoutput) {
		/*
		 * The stuff we've just generated is assumed to be
		 * ISO-8859-1! This sounds insane, but `man
		 * XLookupString' agrees: strings of this type
		 * returned from the X server are hardcoded to
		 * 8859-1. Strictly speaking we should be doing
		 * this using some sort of GtkIMContext, which (if
		 * we're lucky) would give us our data directly in
		 * Unicode; but that's not supported in GTK 1.2 as
		 * far as I can tell, and it's poorly documented
		 * even in 2.0, so it'll have to wait.
		 */
		if (inst->ldisc)
		lpage_send(inst->ldisc, CS_ISO8859_1, output+start,
			   end-start, 1);
		    lpage_send(inst->ldisc, CS_ISO8859_1, output+start,
			       end-start, 1);
	    } else {
		/*
		 * We generated our own Unicode key data from the
		 * keysym, so use that instead.
		 */
		if (inst->ldisc)
		luni_send(inst->ldisc, ucsoutput+start, end-start, 1);
		    luni_send(inst->ldisc, ucsoutput+start, end-start, 1);
	    }
	} else {
	    /*
	     * In direct-to-font mode, we just send the string
	     * exactly as we received it.
	     */
	    if (inst->ldisc)
	    ldisc_send(inst->ldisc, output+start, end-start, 1);
		ldisc_send(inst->ldisc, output+start, end-start, 1);
	}

	show_mouseptr(inst, 0);
	term_seen_key_event(inst->term);
	term_out(inst->term);
    }

    if (!inst->exited &&
        (exitcode = inst->back->exitcode(inst->backhandle)) >= 0) {
	inst->exited = TRUE;
	if (inst->cfg.close_on_exit == FORCE_ON ||
	    (inst->cfg.close_on_exit == AUTO && exitcode == 0))
	    exit(0);		       /* just go. */
	if (inst->ldisc) {
	    ldisc_free(inst->ldisc);
	    inst->ldisc = NULL;
	}
	if (inst->back) {
	    inst->back->free(inst->backhandle);
	    inst->backhandle = NULL;
	    inst->back = NULL;
	    update_specials_menu(inst);
	}
	gtk_widget_show(inst->restartitem);
    }

    term_update(inst->term);
    term_blink(inst->term, 0);
    return TRUE;
}

    term_clrsb(inst->term);
}

void reset_terminal_menuitem(GtkMenuItem *item, gpointer data)
{
    struct gui_data *inst = (struct gui_data *)data;
    term_pwron(inst->term);
    if (inst->ldisc)
    ldisc_send(inst->ldisc, NULL, 0, 0);
	ldisc_send(inst->ldisc, NULL, 0, 0);
}

void copy_all_menuitem(GtkMenuItem *item, gpointer data)
{
    struct gui_data *inst = (struct gui_data *)data;
    term_copyall(inst->term);
}

void special_menuitem(GtkMenuItem *item, gpointer data)
{
    struct gui_data *inst = (struct gui_data *)data;
    int code = GPOINTER_TO_INT(gtk_object_get_data(GTK_OBJECT(item),
						   "user-data"));

    if (inst->back)
    inst->back->special(inst->backhandle, code);
	inst->back->special(inst->backhandle, code);
}

void about_menuitem(GtkMenuItem *item, gpointer data)
{
    struct gui_data *inst = (struct gui_data *)data;
    about_box(inst->window);
}

        /* Pass new config data to the logging module */
        log_reconfig(inst->logctx, &cfg2);
        /*
         * Flush the line discipline's edit buffer in the case
         * where local editing has just been disabled.
         */
        if (inst->ldisc)
        ldisc_send(inst->ldisc, NULL, 0, 0);
	    ldisc_send(inst->ldisc, NULL, 0, 0);
        /* Pass new config data to the terminal */
        term_reconfig(inst->term, &cfg2);
        /* Pass new config data to the back end */
        if (inst->back)
        inst->back->reconfig(inst->backhandle, &cfg2);
	    inst->back->reconfig(inst->backhandle, &cfg2);

        /*
         * Just setting inst->cfg is sufficient to cause colour
         * setting changes to appear on the next ESC]R palette
         * reset. But we should also check whether any colour
         * settings have been changed, and revert the ones that
         * have to the new default, on the assumption that the user

void new_session_menuitem(GtkMenuItem *item, gpointer data)
{
    struct gui_data *inst = (struct gui_data *)data;

    fork_and_exec_self(inst, -1, NULL);
}

void restart_session_menuitem(GtkMenuItem *item, gpointer data)
{
    struct gui_data *inst = (struct gui_data *)data;

    if (!inst->back) {
	logevent(inst, "----- Session restarted -----");
	start_backend(inst);
	inst->exited = FALSE;
    }
}

void saved_session_menuitem(GtkMenuItem *item, gpointer data)
{
    struct gui_data *inst = (struct gui_data *)data;
    char *str = (char *)gtk_object_get_data(GTK_OBJECT(item), "user-data");

    fork_and_exec_self(inst, -1, "-load", str, NULL);

void update_specials_menu(void *frontend)
{
    struct gui_data *inst = (struct gui_data *)frontend;

    const struct telnet_special *specials;

    if (inst->back)
    specials = inst->back->get_specials(inst->backhandle);
	specials = inst->back->get_specials(inst->backhandle);
    else
	specials = NULL;

    gtk_container_foreach(GTK_CONTAINER(inst->specialsmenu),
			  (GtkCallback)gtk_widget_destroy, NULL);
    if (specials) {
	int i;
	GtkWidget *menuitem;
	for (i = 0; specials[i].name; i++) {
	    if (*specials[i].name) {

	gtk_widget_show(inst->specialsitem2);
    } else {
	gtk_widget_hide(inst->specialsitem1);
	gtk_widget_hide(inst->specialsitem2);
    }
}

int pt_main(int argc, char **argv)
static void start_backend(struct gui_data *inst)
{
    extern Backend *select_backend(Config *cfg);
    char *realhost;
    const char *error;

    inst->back = select_backend(&inst->cfg);

    error = inst->back->init((void *)inst, &inst->backhandle,
			     &inst->cfg, inst->cfg.host, inst->cfg.port,
			     &realhost, inst->cfg.tcp_nodelay,
			     inst->cfg.tcp_keepalives);

    if (error) {
	char *msg = dupprintf("Unable to open connection to %s:\n%s",
			      inst->cfg.host, error);
	inst->exited = TRUE;
	fatal_message_box(inst->window, msg);
	sfree(msg);
	exit(0);
    }

    if (inst->cfg.wintitle[0]) {
	set_title(inst, inst->cfg.wintitle);
	set_icon(inst, inst->cfg.wintitle);
    } else {
	char *title = make_default_wintitle(realhost);
	set_title(inst, title);
	set_icon(inst, title);
	sfree(title);
    }
    inst->back->provide_logctx(inst->backhandle, inst->logctx);
    update_specials_menu(inst);

    term_provide_resize_fn(inst->term, inst->back->size, inst->backhandle);

    inst->ldisc =
	ldisc_create(&inst->cfg, inst->term, inst->back, inst->backhandle,
		     inst);

    gtk_widget_hide(inst->restartitem);
}

int pt_main(int argc, char **argv)
{
    extern int cfgbox(Config *cfg);
    struct gui_data *inst;

    /*
     * Create an instance structure and initialise to zeroes
     */
    inst = snew(struct gui_data);

    gtk_widget_show(menuitem); \
    if (func != NULL) \
	gtk_signal_connect(GTK_OBJECT(menuitem), "activate", \
			       GTK_SIGNAL_FUNC(func), inst); \
} while (0)
	if (new_session)
	    MKMENUITEM("New Session", new_session_menuitem);
        MKMENUITEM("Restart Session", restart_session_menuitem);
	inst->restartitem = menuitem;
	gtk_widget_hide(inst->restartitem);
        MKMENUITEM("Duplicate Session", dup_session_menuitem);
	if (saved_sessions) {
	    struct sesslist sesslist;
	    int i;

	    inst->sessionsmenu = gtk_menu_new();

    inst->logctx = log_init(inst, &inst->cfg);
    term_provide_logctx(inst->term, inst->logctx);

    uxsel_init();

    term_size(inst->term, inst->cfg.height, inst->cfg.width, inst->cfg.savelines);

    inst->back = select_backend(&inst->cfg);
    {
	char *realhost;
	const char *error;

    start_backend(inst);
	error = inst->back->init((void *)inst, &inst->backhandle,
                                 &inst->cfg, inst->cfg.host, inst->cfg.port,
                                 &realhost, inst->cfg.tcp_nodelay,
				 inst->cfg.tcp_keepalives);

	if (error) {
	    char *msg = dupprintf("Unable to open connection to %s:\n%s",
                                  inst->cfg.host, error);
            inst->exited = TRUE;
	    fatal_message_box(inst->window, msg);
            sfree(msg);
	    return 0;
	}

        if (inst->cfg.wintitle[0]) {
            set_title(inst, inst->cfg.wintitle);
            set_icon(inst, inst->cfg.wintitle);
	} else {
            char *title = make_default_wintitle(realhost);
            set_title(inst, title);
            set_icon(inst, title);
            sfree(title);
        }
    }
    inst->back->provide_logctx(inst->backhandle, inst->logctx);
    update_specials_menu(inst);

    term_provide_resize_fn(inst->term, inst->back->size, inst->backhandle);

    inst->ldisc =
	ldisc_create(&inst->cfg, inst->term, inst->back, inst->backhandle, inst);
    ldisc_send(inst->ldisc, NULL, 0, 0);/* cause ldisc to notice changes */

    /* now we're reday to deal with the child exit handler being
     * called */
    block_signal(SIGCHLD, 0);

    /*