/*	$OpenBSD: p_show.c,v 1.2 1998/07/24 17:08:15 millert Exp $	*/

/****************************************************************************
 * Copyright (c) 1998 Free Software Foundation, Inc.                        *
 *                                                                          *
 * Permission is hereby granted, free of charge, to any person obtaining a  *
 * copy of this software and associated documentation files (the            *
 * "Software"), to deal in the Software without restriction, including      *
 * without limitation the rights to use, copy, modify, merge, publish,      *
 * distribute, distribute with modifications, sublicense, and/or sell       *
 * copies of the Software, and to permit persons to whom the Software is    *
 * furnished to do so, subject to the following conditions:                 *
 *                                                                          *
 * The above copyright notice and this permission notice shall be included  *
 * in all copies or substantial portions of the Software.                   *
 *                                                                          *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
 *                                                                          *
 * Except as contained in this notice, the name(s) of the above copyright   *
 * holders shall not be used in advertising or otherwise to promote the     *
 * sale, use or other dealings in this Software without prior written       *
 * authorization.                                                           *
 ****************************************************************************/

/****************************************************************************
 *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1995                    *
 *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
 ****************************************************************************/

/* p_show.c
 * Place a panel on top of the stack; may already be in the stack 
 */
#include "panel.priv.h"

MODULE_ID("$From: p_show.c,v 1.2 1998/02/11 12:14:01 tom Exp $")

static void
panel_link_top(PANEL *pan)
{
#ifdef TRACE
  dStack("<lt%d>",1,pan);
  if(_nc_panel_is_linked(pan))
    return;
#endif

  pan->above = (PANEL *)0;
  pan->below = (PANEL *)0;
  if(_nc_top_panel)
    {
      _nc_top_panel->above = pan;
      pan->below = _nc_top_panel;
    }
  _nc_top_panel = pan;
  if(!_nc_bottom_panel)
    _nc_bottom_panel = pan;
  _nc_calculate_obscure();
  dStack("<lt%d>",9,pan);
}

int
show_panel(PANEL *pan)
{
  if(!pan)
    return(ERR);
  if(pan == _nc_top_panel)
    return(OK);
  dBug(("--> show_panel %s", USER_PTR(pan->user)));
  if(_nc_panel_is_linked(pan))
    (void)hide_panel(pan);
  panel_link_top(pan);
  return(OK);
}