top.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
/*
* Copyright (c) 1997, by Sun Microsystems, Inc.
* All rights reserved.
*/
/* A panels subsystem built on curses--Move a panel to the top */
#pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.3 */
/*LINTLIBRARY*/
#include <sys/types.h>
#include <curses.h>
#include "private.h"
/* top_panel */
int
top_panel(PANEL *panel)
{
_obscured_list *obs;
_obscured_list *prev_obs, *tmp;
if (!panel || panel == panel -> below)
return (ERR);
/* If the panel is already on top, there is nothing to do */
if (_Top_panel == panel)
return (OK);
/*
* All the panels that used to obscure this panel are
* now obscured by this panel.
*/
if ((obs = panel -> obscured) != 0) {
do {
prev_obs = obs;
obs = obs -> next;
if ((tmp = prev_obs -> panel_p -> obscured) != 0) {
prev_obs->next = tmp->next;
tmp->next = prev_obs;
} else
prev_obs->next =
prev_obs->panel_p->obscured = prev_obs;
prev_obs -> panel_p = panel;
}
while (obs != panel -> obscured);
panel -> obscured = 0;
}
/* Move the panel to the top */
if (panel == _Bottom_panel)
(_Bottom_panel = panel -> above) -> below = 0;
else {
panel -> above -> below = panel -> below;
panel -> below -> above = panel -> above;
}
panel -> above = 0;
panel -> below = _Top_panel;
_Top_panel = _Top_panel -> above = panel;
(void) touchwin(panel -> win);
return (OK);
}