p_new.c revision 56639 
1/****************************************************************************
2 * Copyright (c) 1998 Free Software Foundation, Inc.                        *
3 *                                                                          *
4 * Permission is hereby granted, free of charge, to any person obtaining a  *
5 * copy of this software and associated documentation files (the            *
6 * "Software"), to deal in the Software without restriction, including      *
7 * without limitation the rights to use, copy, modify, merge, publish,      *
8 * distribute, distribute with modifications, sublicense, and/or sell       *
9 * copies of the Software, and to permit persons to whom the Software is    *
10 * furnished to do so, subject to the following conditions:                 *
11 *                                                                          *
12 * The above copyright notice and this permission notice shall be included  *
13 * in all copies or substantial portions of the Software.                   *
14 *                                                                          *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
22 *                                                                          *
23 * Except as contained in this notice, the name(s) of the above copyright   *
24 * holders shall not be used in advertising or otherwise to promote the     *
25 * sale, use or other dealings in this Software without prior written       *
26 * authorization.                                                           *
27 ****************************************************************************/
28
29/****************************************************************************
30 *  Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1995                    *
31 *     and: Eric S. Raymond <esr@snark.thyrsus.com>                         *
32 ****************************************************************************/
33
34/* p_new.c
35 * Creation of a new panel
36 */
37#include "panel.priv.h"
38
39MODULE_ID("$Id: p_new.c,v 1.4 1999/09/29 15:22:32 juergen Exp $")
40
41/*+-------------------------------------------------------------------------
42  Get root (i.e. stdscr's) panel.
43  Establish the pseudo panel for stdscr if necessary.
44--------------------------------------------------------------------------*/
45static PANEL*
46root_panel(void)
47{
48  if(_nc_stdscr_pseudo_panel == (PANEL*)0)
49    {
50
51      assert(stdscr && !_nc_bottom_panel && !_nc_top_panel);
52      _nc_stdscr_pseudo_panel = (PANEL*)malloc(sizeof(PANEL));
53      if (_nc_stdscr_pseudo_panel != 0) {
54	PANEL* pan  = _nc_stdscr_pseudo_panel;
55	WINDOW* win = stdscr;
56	pan->win = win;
57	pan->below   = (PANEL*)0;
58	pan->above   = (PANEL*)0;
59#ifdef TRACE
60	pan->user = "stdscr";
61#else
62	pan->user = (void*)0;
63#endif
64	_nc_bottom_panel = _nc_top_panel = pan;
65      }
66    }
67  return _nc_stdscr_pseudo_panel;
68}
69
70PANEL *
71new_panel(WINDOW *win)
72{
73  PANEL *pan = (PANEL*)0;
74
75  (void)root_panel();
76  assert(_nc_stdscr_pseudo_panel);
77
78  if (!(win->_flags & _ISPAD) && (pan = (PANEL*)malloc(sizeof(PANEL))))
79    {
80      pan->win = win;
81      pan->above = (PANEL *)0;
82      pan->below = (PANEL *)0;
83#ifdef TRACE
84      pan->user = "new";
85#else
86      pan->user = (char *)0;
87#endif
88      (void)show_panel(pan);
89    }
90  return(pan);
91}
92