1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* Copyright (c) 1988 AT&T */ 23 /* All Rights Reserved */ 24 25 26 /* 27 * Copyright (c) 1997, by Sun Microsystems, Inc. 28 * All rights reserved. 29 */ 30 31 /* A panels subsystem built on curses--Delete panel routines */ 32 33 #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.3 */ 34 35 /*LINTLIBRARY*/ 36 37 #include <sys/types.h> 38 #include <stdlib.h> 39 #include <curses.h> 40 #include "private.h" 41 42 /* hide_panel - Unlink a panel from the pile and remove it from the screen. */ 43 int 44 hide_panel(PANEL *panel) 45 { 46 if (!panel) 47 return (ERR); 48 49 /* It is ok to hide a panel that is already hidden. */ 50 51 if (panel == panel -> below) 52 return (OK); 53 54 /* unlink panel */ 55 56 _remove_overlap(panel); 57 if (panel == _Bottom_panel) 58 _Bottom_panel = panel -> above; 59 else 60 panel -> below -> above = panel -> above; 61 62 if (panel == _Top_panel) 63 _Top_panel = panel -> below; 64 else 65 panel -> above -> below = panel -> below; 66 67 _Panel_cnt--; 68 panel -> below = panel; 69 return (OK); 70 } 71 72 /* 73 * del_panel - Delete a panel from the pile 74 * and free all memory associated with it. 75 */ 76 int 77 del_panel(PANEL *panel) 78 { 79 return ((hide_panel(panel) == OK) ? free(panel), OK : ERR); 80 } 81 82 /* 83 * _remove_overlap 84 * Remove all references to a panel from the obscured lists of all panels. 85 * Also remove all obscured nodes from the given panel. This routine 86 * touches the appropriate places to ensure that everybody is properly 87 * updated. 88 */ 89 void 90 _remove_overlap(PANEL *panel) 91 { 92 PANEL *pnl; 93 _obscured_list *obs; 94 _obscured_list *prev_obs; 95 96 /* Make sure that the background gets updated */ 97 98 (void) touchline(stdscr, panel->wstarty, 99 panel->wendy - panel->wstarty + 1); 100 101 /* Remove all references to the panel from the remaining panels */ 102 103 for (pnl = _Bottom_panel; pnl != panel; pnl = pnl->above) { 104 if (obs = _unlink_obs(pnl, panel)) 105 _free_overlap(obs); 106 } 107 108 /* delete the obscured list from the panel */ 109 110 if ((obs = panel -> obscured) != 0) { 111 do { 112 prev_obs = obs; 113 obs = obs -> next; 114 _free_overlap(prev_obs); 115 } 116 while (obs != panel -> obscured); 117 panel -> obscured = 0; 118 } 119 } 120