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/*
* 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--Delete panel routines */
#pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.3 */
/*LINTLIBRARY*/
#include <sys/types.h>
#include <stdlib.h>
#include <curses.h>
#include "private.h"
/* hide_panel - Unlink a panel from the pile and remove it from the screen. */
int
hide_panel(PANEL *panel)
{
if (!panel)
return (ERR);
/* It is ok to hide a panel that is already hidden. */
if (panel == panel -> below)
return (OK);
/* unlink panel */
_remove_overlap(panel);
if (panel == _Bottom_panel)
_Bottom_panel = panel -> above;
else
panel -> below -> above = panel -> above;
if (panel == _Top_panel)
_Top_panel = panel -> below;
else
panel -> above -> below = panel -> below;
_Panel_cnt--;
panel -> below = panel;
return (OK);
}
/*
* del_panel - Delete a panel from the pile
* and free all memory associated with it.
*/
int
del_panel(PANEL *panel)
{
return ((hide_panel(panel) == OK) ? free(panel), OK : ERR);
}
/*
* _remove_overlap
* Remove all references to a panel from the obscured lists of all panels.
* Also remove all obscured nodes from the given panel. This routine
* touches the appropriate places to ensure that everybody is properly
* updated.
*/
void
_remove_overlap(PANEL *panel)
{
PANEL *pnl;
_obscured_list *obs;
_obscured_list *prev_obs;
/* Make sure that the background gets updated */
(void) touchline(stdscr, panel->wstarty,
panel->wendy - panel->wstarty + 1);
/* Remove all references to the panel from the remaining panels */
for (pnl = _Bottom_panel; pnl != panel; pnl = pnl->above) {
if (obs = _unlink_obs(pnl, panel))
_free_overlap(obs);
}
/* delete the obscured list from the panel */
if ((obs = panel -> obscured) != 0) {
do {
prev_obs = obs;
obs = obs -> next;
_free_overlap(prev_obs);
}
while (obs != panel -> obscured);
panel -> obscured = 0;
}
}
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