int alt_keycode;
    char wintitle[sizeof(((Config *)0)->wintitle)];
    char icontitle[sizeof(((Config *)0)->wintitle)];
    int master_fd, master_func_id, exited;
    void *ldisc;
    Backend *back;
    void *backhandle;
    Terminal *term;
};

static struct gui_data the_inst;
static struct gui_data *inst = &the_inst;   /* so we always write `inst->' */
static int send_raw_mouse;

void ldisc_update(void *frontend, int echo, int edit)

}

/*
 * Refresh the window in response to a server-side request.
 */
void refresh_window(void)
{
    term_invalidate(inst->term);
}

/*
 * Maximise or restore the window in response to a server-side
 * request.
 */
void set_zoomed(int zoomed)

	gdk_draw_rectangle(inst->pixmap, gc, 1, 0, 0,
			   cfg.width * inst->font_width + 2*cfg.window_border,
			   cfg.height * inst->font_height + 2*cfg.window_border);
	gdk_gc_unref(gc);
    }

    if (need_size) {
	term_size(inst->term, h, w, cfg.savelines);
    }

    return TRUE;
}

gint expose_area(GtkWidget *widget, GdkEventExpose *event, gpointer data)
{

	}

	/*
	 * Shift-PgUp and Shift-PgDn don't even generate keystrokes
	 * at all.
	 */
	if (event->keyval == GDK_Page_Up && (event->state & GDK_SHIFT_MASK)) {
	    term_scroll(inst->term, 0, -cfg.height/2);
	    return TRUE;
	}
	if (event->keyval == GDK_Page_Down && (event->state & GDK_SHIFT_MASK)) {
	    term_scroll(inst->term, 0, +cfg.height/2);
	    return TRUE;
	}

	/*
	 * Neither does Shift-Ins.
	 */
	if (event->keyval == GDK_Insert && (event->state & GDK_SHIFT_MASK)) {

		goto done;
	    }
	}

	/*
	 * Application keypad mode.
	 */
	if (inst->term->app_keypad_keys && !cfg.no_applic_k) {
	    int xkey = 0;
	    switch (event->keyval) {
	      case GDK_Num_Lock: xkey = 'P'; break;
	      case GDK_KP_Divide: xkey = 'Q'; break;
	      case GDK_KP_Multiply: xkey = 'R'; break;
	      case GDK_KP_Subtract: xkey = 'S'; break;
		/*

	      case GDK_KP_6: case GDK_KP_Right: xkey = 'v'; break;
	      case GDK_KP_7: case GDK_KP_Home: xkey = 'w'; break;
	      case GDK_KP_8: case GDK_KP_Up: xkey = 'x'; break;
	      case GDK_KP_9: case GDK_KP_Page_Up: xkey = 'y'; break;
	      case GDK_KP_Decimal: case GDK_KP_Delete: xkey = 'n'; break;
	    }
	    if (xkey) {
		if (inst->term->vt52_mode) {
		    if (xkey >= 'P' && xkey <= 'S')
			end = 1 + sprintf(output+1, "\033%c", xkey);
		    else
			end = 1 + sprintf(output+1, "\033?%c", xkey);
		} else
		    end = 1 + sprintf(output+1, "\033O%c", xkey);
		goto done;

		code = 6;
		break;
	    }
	    /* Reorder edit keys to physical order */
	    if (cfg.funky_type == 3 && code <= 6)
		code = "\0\2\1\4\5\3\6"[code];

	    if (inst->term->vt52_mode && code > 0 && code <= 6) {
		end = 1 + sprintf(output+1, "\x1B%c", " HLMEIG"[code]);
		goto done;
	    }

	    if (cfg.funky_type == 5 &&     /* SCO function keys */
		code >= 11 && code <= 34) {
		char codes[] = "MNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz@[\\]^_`{";

		    output[1] = '\x7F';
		    end = 2;
		} else {
		    end = 1 + sprintf(output+1, "\x1B[%c", codes[code-1]);
		}
		goto done;
	    }
	    if ((inst->term->vt52_mode || cfg.funky_type == 4) &&
		code >= 11 && code <= 24) {
		int offt = 0;
		if (code > 15)
		    offt++;
		if (code > 21)
		    offt++;
		if (inst->term->vt52_mode)
		    end = 1 + sprintf(output+1,
				      "\x1B%c", code + 'P' - 11 - offt);
		else
		    end = 1 + sprintf(output+1,
				      "\x1BO%c", code + 'P' - 11 - offt);
		goto done;
	    }
	    if (cfg.funky_type == 1 && code >= 11 && code <= 15) {
		end = 1 + sprintf(output+1, "\x1B[[%c", code + 'A' - 11);
		goto done;
	    }
	    if (cfg.funky_type == 2 && code >= 11 && code <= 14) {
		if (inst->term->vt52_mode)
		    end = 1 + sprintf(output+1, "\x1B%c", code + 'P' - 11);
		else
		    end = 1 + sprintf(output+1, "\x1BO%c", code + 'P' - 11);
		goto done;
	    }
	    if (cfg.rxvt_homeend && (code == 1 || code == 4)) {
		end = 1 + sprintf(output+1, code == 1 ? "\x1B[H" : "\x1BOw");

	    }
	    if (xkey) {
		/*
		 * The arrow keys normally do ESC [ A and so on. In
		 * app cursor keys mode they do ESC O A instead.
		 * Ctrl toggles the two modes.
		 */
		if (inst->term->vt52_mode) {
		    end = 1 + sprintf(output+1, "\033%c", xkey);
		} else if (!inst->term->app_cursor_keys ^
			   !(event->state & GDK_CONTROL_MASK)) {
		    end = 1 + sprintf(output+1, "\033O%c", xkey);
		} else {		    
		    end = 1 + sprintf(output+1, "\033[%c", xkey);
		}
		goto done;
	    }

	for (i = start; i < end; i++)
	    printf(" %02x", (unsigned char) output[i]);
	printf("\n");
#endif

	ldisc_send(inst->ldisc, output+start, end-start, 1);
	show_mouseptr(0);
	term_seen_key_event(inst->term);
	term_out(inst->term);
    }

    return TRUE;
}

gint button_event(GtkWidget *widget, GdkEventButton *event, gpointer data)
{
    struct gui_data *inst = (struct gui_data *)data;
    int shift, ctrl, alt, x, y, button, act;

    show_mouseptr(1);

    if (event->button == 4 && event->type == GDK_BUTTON_PRESS) {
	term_scroll(inst->term, 0, -5);
	return TRUE;
    }
    if (event->button == 5 && event->type == GDK_BUTTON_PRESS) {
	term_scroll(inst->term, 0, +5);
	return TRUE;
    }

    shift = event->state & GDK_SHIFT_MASK;
    ctrl = event->state & GDK_CONTROL_MASK;
    alt = event->state & GDK_MOD1_MASK;
    if (event->button == 1)

    if (send_raw_mouse && !(cfg.mouse_override && shift) &&
	act != MA_CLICK && act != MA_RELEASE)
	return TRUE;		       /* we ignore these in raw mouse mode */

    x = (event->x - cfg.window_border) / inst->font_width;
    y = (event->y - cfg.window_border) / inst->font_height;

    term_mouse(inst->term, button, act, x, y, shift, ctrl, alt);

    return TRUE;
}

gint motion_event(GtkWidget *widget, GdkEventMotion *event, gpointer data)
{
    struct gui_data *inst = (struct gui_data *)data;

	button = MBT_RIGHT;
    else
	return FALSE;		       /* don't even know what button! */

    x = (event->x - cfg.window_border) / inst->font_width;
    y = (event->y - cfg.window_border) / inst->font_height;

    term_mouse(inst->term, button, MA_DRAG, x, y, shift, ctrl, alt);

    return TRUE;
}

void done_with_pty(struct gui_data *inst)
{
    extern void pty_close(void);

		sprintf(message, "\r\n[pterm: process terminated on signal"
			" %d]\r\n", WTERMSIG(exitcode));
#else
		sprintf(message, "\r\n[pterm: process terminated on signal"
			" %d (%.400s)]\r\n", WTERMSIG(exitcode),
			strsignal(WTERMSIG(exitcode)));
#endif
	    from_backend((void *)inst->term, 0, message, strlen(message));
	}
	inst->exited = 1;
    }
}

void frontend_keypress(void *handle)
{

	 * (though we don't necessarily _close_ the window,
	 * depending on the state of Close On Exit). This would be
	 * easy enough to change or make configurable if necessary.
	 */
	done_with_pty(inst);
    }

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

void pty_input_func(gpointer data, gint sourcefd, GdkInputCondition condition)
{
    struct gui_data *inst = (struct gui_data *)data;
    char buf[4096];

     */
    if (ret == 0 || (ret < 0 && errno == EIO)) {
	done_with_pty(inst);
    } else if (ret < 0) {
	perror("read pty master");
	exit(1);
    } else if (ret > 0)
	from_backend(inst->term, 0, buf, ret);
    term_blink(inst->term, 1);
    term_out(inst->term);
}

void destroy(GtkWidget *widget, gpointer data)
{
    gtk_main_quit();
}

gint focus_event(GtkWidget *widget, GdkEventFocus *event, gpointer data)
{
    inst->term->has_focus = event->in;
    term_out(inst->term);
    term_update(inst->term);
    show_mouseptr(1);
    return FALSE;
}

/*
 * set or clear the "raw mouse message" mode
 */

    gtk_selection_data_set(seldata, GDK_SELECTION_TYPE_STRING, 8,
			   inst->pasteout_data, inst->pasteout_data_len);
}

gint selection_clear(GtkWidget *widget, GdkEventSelection *seldata,
		     gpointer data)
{
    term_deselect(inst->term);
    if (inst->pasteout_data)
	sfree(inst->pasteout_data);
    inst->pasteout_data = NULL;
    inst->pasteout_data_len = 0;
    return TRUE;
}

	sfree(inst->pastein_data);

    inst->pastein_data = smalloc(seldata->length * sizeof(wchar_t));
    inst->pastein_data_len = seldata->length;
    mb_to_wc(0, 0, seldata->data, seldata->length,
	     inst->pastein_data, inst->pastein_data_len);

    term_do_paste(inst->term);

    if (term_paste_pending(inst->term))
	inst->term_paste_idle_id = gtk_idle_add(idle_paste_func, inst);
}

gint idle_paste_func(gpointer data)
{
    struct gui_data *inst = (struct gui_data *)data;

    if (term_paste_pending(inst->term))
	term_paste(inst->term);
    else
	gtk_idle_remove(inst->term_paste_idle_id);

    return TRUE;
}

}

void scrollbar_moved(GtkAdjustment *adj, gpointer data)
{
    if (!cfg.scrollbar)
	return;
    if (!inst->ignore_sbar)
	term_scroll(inst->term, 1, (int)adj->value);
}

void sys_cursor(int x, int y)
{
    /*
     * This is meaningless under X.
     */

	    fontid = 1;
	else
	    shadow = 1;
    }

    if (lattr != LATTR_NORM) {
	x *= 2;
	if (x >= inst->term->cols)
	    return;
	if (x + len*2 > inst->term->cols)
	    len = (inst->term->cols-x)/2;    /* trim to LH half */
    }

    gdk_gc_set_foreground(gc, &inst->cols[nbg]);
    gdk_draw_rectangle(inst->pixmap, gc, 1,
		       x*inst->font_width+cfg.window_border,
		       y*inst->font_height+cfg.window_border,
		       len*inst->font_width, inst->font_height);

{
    GdkGC *gc = (GdkGC *)ctx;

    do_text_internal(ctx, x, y, text, len, attr, lattr);

    if (lattr != LATTR_NORM) {
	x *= 2;
	if (x >= inst->term->cols)
	    return;
	if (x + len*2 > inst->term->cols)
	    len = (inst->term->cols-x)/2;    /* trim to LH half */
	len *= 2;
    }

    gdk_draw_pixmap(inst->area->window, gc, inst->pixmap,
		    x*inst->font_width+cfg.window_border,
		    y*inst->font_height+cfg.window_border,
		    x*inst->font_width+cfg.window_border,

    if ((attr & TATTR_ACTCURS) && cfg.cursor_type != 0) {
	attr &= ~TATTR_ACTCURS;
    }
    do_text_internal(ctx, x, y, text, len, attr, lattr);

    if (lattr != LATTR_NORM) {
	x *= 2;
	if (x >= inst->term->cols)
	    return;
	if (x + len*2 > inst->term->cols)
	    len = (inst->term->cols-x)/2;    /* trim to LH half */
	len *= 2;
    }

    if (cfg.cursor_type == 0) {
	/*
	 * An active block cursor will already have been done by
	 * the above do_text call, so we only need to do anything

    inst->textcursor = make_mouse_ptr(GDK_XTERM);
    inst->rawcursor = make_mouse_ptr(GDK_LEFT_PTR);
    inst->blankcursor = make_mouse_ptr(-1);
    make_mouse_ptr(-2);		       /* clean up cursor font */
    inst->currcursor = inst->textcursor;
    show_mouseptr(1);

    inst->term = term_init();

    inst->back = &pty_backend;
    inst->back->init((void *)inst->term, &inst->backhandle, NULL, 0, NULL, 0);

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

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

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

    inst->master_fd = pty_master_fd;
    inst->exited = FALSE;
    inst->master_func_id = gdk_input_add(pty_master_fd, GDK_INPUT_READ,
					 pty_input_func, inst);

    gtk_main();

    return 0;
}