1 /* $OpenBSD: m_opts.c,v 1.8 2010/01/12 23:22:08 nicm Exp $ */ 2 3 /**************************************************************************** 4 * Copyright (c) 1998-2003,2004 Free Software Foundation, Inc. * 5 * * 6 * Permission is hereby granted, free of charge, to any person obtaining a * 7 * copy of this software and associated documentation files (the * 8 * "Software"), to deal in the Software without restriction, including * 9 * without limitation the rights to use, copy, modify, merge, publish, * 10 * distribute, distribute with modifications, sublicense, and/or sell * 11 * copies of the Software, and to permit persons to whom the Software is * 12 * furnished to do so, subject to the following conditions: * 13 * * 14 * The above copyright notice and this permission notice shall be included * 15 * in all copies or substantial portions of the Software. * 16 * * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 20 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 23 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 24 * * 25 * Except as contained in this notice, the name(s) of the above copyright * 26 * holders shall not be used in advertising or otherwise to promote the * 27 * sale, use or other dealings in this Software without prior written * 28 * authorization. * 29 ****************************************************************************/ 30 31 /**************************************************************************** 32 * Author: Juergen Pfeifer, 1995,1997 * 33 ****************************************************************************/ 34 35 /*************************************************************************** 36 * Module m_opts * 37 * Menus option routines * 38 ***************************************************************************/ 39 40 #include "menu.priv.h" 41 42 MODULE_ID("$Id: m_opts.c,v 1.8 2010/01/12 23:22:08 nicm Exp $") 43 44 /*--------------------------------------------------------------------------- 45 | Facility : libnmenu 46 | Function : int set_menu_opts(MENU *menu, Menu_Options opts) 47 | 48 | Description : Set the options for this menu. If the new settings 49 | end up in a change of the geometry of the menu, it 50 | will be recalculated. This operation is forbidden if 51 | the menu is already posted. 52 | 53 | Return Values : E_OK - success 54 | E_BAD_ARGUMENT - invalid menu options 55 | E_POSTED - menu is already posted 56 +--------------------------------------------------------------------------*/ 57 NCURSES_EXPORT(int) 58 set_menu_opts(MENU * menu, Menu_Options opts) 59 { 60 T((T_CALLED("set_menu_opts(%p,%d)"), menu, opts)); 61 62 opts &= ALL_MENU_OPTS; 63 64 if (opts & ~ALL_MENU_OPTS) 65 RETURN(E_BAD_ARGUMENT); 66 67 if (menu) 68 { 69 if (menu->status & _POSTED) 70 RETURN(E_POSTED); 71 72 if ((opts & O_ROWMAJOR) != (menu->opt & O_ROWMAJOR)) 73 { 74 /* we need this only if the layout really changed ... */ 75 if (menu->items && menu->items[0]) 76 { 77 menu->toprow = 0; 78 menu->curitem = menu->items[0]; 79 assert(menu->curitem); 80 set_menu_format(menu, menu->frows, menu->fcols); 81 } 82 } 83 84 menu->opt = opts; 85 86 if (opts & O_ONEVALUE) 87 { 88 ITEM **item; 89 90 if (((item = menu->items) != (ITEM **) 0)) 91 for (; *item; item++) 92 (*item)->value = FALSE; 93 } 94 95 if (opts & O_SHOWDESC) /* this also changes the geometry */ 96 _nc_Calculate_Item_Length_and_Width(menu); 97 } 98 else 99 _nc_Default_Menu.opt = opts; 100 101 RETURN(E_OK); 102 } 103 104 /*--------------------------------------------------------------------------- 105 | Facility : libnmenu 106 | Function : int menu_opts_off(MENU *menu, Menu_Options opts) 107 | 108 | Description : Switch off the options for this menu. If the new settings 109 | end up in a change of the geometry of the menu, it 110 | will be recalculated. This operation is forbidden if 111 | the menu is already posted. 112 | 113 | Return Values : E_OK - success 114 | E_BAD_ARGUMENT - invalid options 115 | E_POSTED - menu is already posted 116 +--------------------------------------------------------------------------*/ 117 NCURSES_EXPORT(int) 118 menu_opts_off(MENU * menu, Menu_Options opts) 119 { 120 MENU *cmenu = menu; /* use a copy because set_menu_opts must detect 121 122 NULL menu itself to adjust its behavior */ 123 124 T((T_CALLED("menu_opts_off(%p,%d)"), menu, opts)); 125 126 opts &= ALL_MENU_OPTS; 127 if (opts & ~ALL_MENU_OPTS) 128 RETURN(E_BAD_ARGUMENT); 129 else 130 { 131 Normalize_Menu(cmenu); 132 opts = cmenu->opt & ~opts; 133 returnCode(set_menu_opts(menu, opts)); 134 } 135 } 136 137 /*--------------------------------------------------------------------------- 138 | Facility : libnmenu 139 | Function : int menu_opts_on(MENU *menu, Menu_Options opts) 140 | 141 | Description : Switch on the options for this menu. If the new settings 142 | end up in a change of the geometry of the menu, it 143 | will be recalculated. This operation is forbidden if 144 | the menu is already posted. 145 | 146 | Return Values : E_OK - success 147 | E_BAD_ARGUMENT - invalid menu options 148 | E_POSTED - menu is already posted 149 +--------------------------------------------------------------------------*/ 150 NCURSES_EXPORT(int) 151 menu_opts_on(MENU * menu, Menu_Options opts) 152 { 153 MENU *cmenu = menu; /* use a copy because set_menu_opts must detect 154 155 NULL menu itself to adjust its behavior */ 156 157 T((T_CALLED("menu_opts_on(%p,%d)"), menu, opts)); 158 159 opts &= ALL_MENU_OPTS; 160 if (opts & ~ALL_MENU_OPTS) 161 RETURN(E_BAD_ARGUMENT); 162 else 163 { 164 Normalize_Menu(cmenu); 165 opts = cmenu->opt | opts; 166 returnCode(set_menu_opts(menu, opts)); 167 } 168 } 169 170 /*--------------------------------------------------------------------------- 171 | Facility : libnmenu 172 | Function : Menu_Options menu_opts(const MENU *menu) 173 | 174 | Description : Return the options for this menu. 175 | 176 | Return Values : Menu options 177 +--------------------------------------------------------------------------*/ 178 NCURSES_EXPORT(Menu_Options) 179 menu_opts(const MENU * menu) 180 { 181 T((T_CALLED("menu_opts(%p)"), menu)); 182 returnMenuOpts(ALL_MENU_OPTS & Normalize_Menu(menu)->opt); 183 } 184 185 /* m_opts.c ends here */ 186