freebsd-dev/contrib/ncurses/panel/p_show.c

80 lines
3.1 KiB
C

/****************************************************************************
* 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("$Id: p_show.c,v 1.5 1999/09/29 15:22:32 juergen Exp $")
static void
panel_link_top(PANEL *pan)
{
#ifdef TRACE
dStack("<lt%d>",1,pan);
if(_nc_panel_is_linked(pan))
return;
#endif
assert(_nc_bottom_panel == _nc_stdscr_pseudo_panel);
pan->above = (PANEL *)0;
pan->below = (PANEL *)0;
_nc_top_panel->above = pan;
pan->below = _nc_top_panel;
_nc_top_panel = pan;
dStack("<lt%d>",9,pan);
}
int
show_panel(PANEL *pan)
{
if(!pan)
return(ERR);
if (Is_Top(pan))
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);
}