1 /* $NetBSD: new.c,v 1.3 2015/11/02 02:45:25 kamil Exp $ */ 2 3 /* 4 * Copyright (c) 2015 Valery Ushakov 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 __RCSID("$NetBSD: new.c,v 1.3 2015/11/02 02:45:25 kamil Exp $"); 30 31 #include "panel_impl.h" 32 33 #include <assert.h> 34 #include <stdlib.h> 35 36 37 static PANEL * 38 _new_panel(WINDOW *w) 39 { 40 PANEL *p; 41 42 p = (PANEL *)malloc(sizeof(PANEL)); 43 if (__predict_false(p == NULL)) 44 return NULL; 45 46 p->win = w; 47 p->user = NULL; 48 49 DECK_INSERT_TOP(p); 50 return p; 51 } 52 53 54 PANEL * 55 new_panel(WINDOW *w) 56 { 57 58 if (__predict_false(w == NULL)) 59 return NULL; 60 61 if (__predict_false(w == stdscr)) 62 return NULL; 63 64 /* 65 * Ensure there's phantom panel for stdscr at (below) the 66 * bottom. We explicitly re-assign stdscr in case it changed. 67 */ 68 if (TAILQ_EMPTY(&_deck)) { 69 assert(PANEL_HIDDEN(&_stdscr_panel)); 70 71 _stdscr_panel.win = stdscr; 72 DECK_INSERT_TOP(&_stdscr_panel); 73 } 74 75 return _new_panel(w); 76 } 77