1 /**************************************************************************** 2 * Copyright (c) 1998,2000 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 1.6 2000/12/10 02:20:44 tom Exp $") 40 41 #ifdef TRACE 42 static char* stdscr_id; 43 static char* new_id; 44 #endif 45 46 /*+------------------------------------------------------------------------- 47 Get root (i.e. stdscr's) panel. 48 Establish the pseudo panel for stdscr if necessary. 49 --------------------------------------------------------------------------*/ 50 static PANEL* 51 root_panel(void) 52 { 53 if(_nc_stdscr_pseudo_panel == (PANEL*)0) 54 { 55 56 assert(stdscr && !_nc_bottom_panel && !_nc_top_panel); 57 _nc_stdscr_pseudo_panel = (PANEL*)malloc(sizeof(PANEL)); 58 if (_nc_stdscr_pseudo_panel != 0) { 59 PANEL* pan = _nc_stdscr_pseudo_panel; 60 WINDOW* win = stdscr; 61 pan->win = win; 62 pan->below = (PANEL*)0; 63 pan->above = (PANEL*)0; 64 #ifdef TRACE 65 if (!stdscr_id) 66 stdscr_id = strdup("stdscr"); 67 pan->user = stdscr_id; 68 #else 69 pan->user = (void*)0; 70 #endif 71 _nc_bottom_panel = _nc_top_panel = pan; 72 } 73 } 74 return _nc_stdscr_pseudo_panel; 75 } 76 77 NCURSES_EXPORT(PANEL *) 78 new_panel (WINDOW *win) 79 { 80 PANEL *pan = (PANEL*)0; 81 82 if (!win) 83 return(pan); 84 85 if (!_nc_stdscr_pseudo_panel) 86 (void)root_panel(); 87 assert(_nc_stdscr_pseudo_panel); 88 89 if (!(win->_flags & _ISPAD) && (pan = (PANEL*)malloc(sizeof(PANEL)))) 90 { 91 pan->win = win; 92 pan->above = (PANEL *)0; 93 pan->below = (PANEL *)0; 94 #ifdef TRACE 95 if (!new_id) 96 new_id = strdup("new"); 97 pan->user = new_id; 98 #else 99 pan->user = (char *)0; 100 #endif 101 (void)show_panel(pan); 102 } 103 return(pan); 104 } 105