ncurses-5.7/panel/p_show.c

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/****************************************************************************
 *  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 1.11 2005/02/19 16:42:02 tom Exp $")

NCURSES_EXPORT(int)
show_panel(PANEL * pan)
{
  int err = OK;

  T((T_CALLED("show_panel(%p)"), pan));

  if (!pan)
    returnCode(ERR);

  if (Is_Top(pan))
    returnCode(OK);

  dBug(("--> show_panel %s", USER_PTR(pan->user)));

  HIDE_PANEL(pan, err, OK);

  dStack("<lt%d>", 1, pan);
  assert(_nc_bottom_panel == _nc_stdscr_pseudo_panel);

  _nc_top_panel->above = pan;
  pan->below = _nc_top_panel;
  pan->above = (PANEL *) 0;
  _nc_top_panel = pan;

  dStack("<lt%d>", 9, pan);

  returnCode(OK);
}