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 39 MODULE_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 --------------------------------------------------------------------------*/ 45 static PANEL* 46 root_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 70 PANEL * 71 new_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