1 /**************************************************************************** 2 * Copyright (c) 1998-2009,2010 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 * and: Juergen Pfeifer 1997-1999 * 33 * and: Thomas E. Dickey 2000-on * 34 ****************************************************************************/ 35 36 /* p_new.c 37 * Creation of a new panel 38 */ 39 #include "panel.priv.h" 40 41 MODULE_ID("$Id: p_new.c,v 1.16 2010/01/23 21:22:16 tom Exp $") 42 43 #ifdef TRACE 44 static char *stdscr_id; 45 static char *new_id; 46 #endif 47 48 /*+------------------------------------------------------------------------- 49 Get root (i.e. stdscr's) panel. 50 Establish the pseudo panel for stdscr if necessary. 51 --------------------------------------------------------------------------*/ 52 static PANEL * 53 root_panel(NCURSES_SP_DCL0) 54 { 55 #if NCURSES_SP_FUNCS 56 struct panelhook *ph = NCURSES_SP_NAME(_nc_panelhook) (sp); 57 58 #elif NO_LEAKS 59 struct panelhook *ph = _nc_panelhook(); 60 #endif 61 62 if (_nc_stdscr_pseudo_panel == (PANEL *) 0) 63 { 64 65 assert(SP_PARM && SP_PARM->_stdscr && !_nc_bottom_panel && !_nc_top_panel); 66 #if NO_LEAKS 67 ph->destroy = del_panel; 68 #endif 69 _nc_stdscr_pseudo_panel = typeMalloc(PANEL, 1); 70 if (_nc_stdscr_pseudo_panel != 0) 71 { 72 PANEL *pan = _nc_stdscr_pseudo_panel; 73 WINDOW *win = SP_PARM->_stdscr; 74 75 pan->win = win; 76 pan->below = (PANEL *) 0; 77 pan->above = (PANEL *) 0; 78 #ifdef TRACE 79 if (!stdscr_id) 80 stdscr_id = strdup("stdscr"); 81 pan->user = stdscr_id; 82 #else 83 pan->user = (void *)0; 84 #endif 85 _nc_bottom_panel = _nc_top_panel = pan; 86 } 87 } 88 return _nc_stdscr_pseudo_panel; 89 } 90 91 NCURSES_EXPORT(PANEL *) 92 new_panel(WINDOW *win) 93 { 94 PANEL *pan = (PANEL *) 0; 95 96 GetWindowHook(win); 97 98 T((T_CALLED("new_panel(%p)"), (void *)win)); 99 100 if (!win) 101 returnPanel(pan); 102 103 if (!_nc_stdscr_pseudo_panel) 104 (void)root_panel(NCURSES_SP_ARG); 105 assert(_nc_stdscr_pseudo_panel); 106 107 if (!(win->_flags & _ISPAD) && (pan = typeMalloc(PANEL, 1))) 108 { 109 pan->win = win; 110 pan->above = (PANEL *) 0; 111 pan->below = (PANEL *) 0; 112 #ifdef TRACE 113 if (!new_id) 114 new_id = strdup("new"); 115 pan->user = new_id; 116 #else 117 pan->user = (char *)0; 118 #endif 119 (void)show_panel(pan); 120 } 121 returnPanel(pan); 122 } 123