1 /**************************************************************************** 2 * Copyright 2020 Thomas E. Dickey * 3 * Copyright 1998-2004,2010 Free Software Foundation, Inc. * 4 * * 5 * Permission is hereby granted, free of charge, to any person obtaining a * 6 * copy of this software and associated documentation files (the * 7 * "Software"), to deal in the Software without restriction, including * 8 * without limitation the rights to use, copy, modify, merge, publish, * 9 * distribute, distribute with modifications, sublicense, and/or sell * 10 * copies of the Software, and to permit persons to whom the Software is * 11 * furnished to do so, subject to the following conditions: * 12 * * 13 * The above copyright notice and this permission notice shall be included * 14 * in all copies or substantial portions of the Software. * 15 * * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 23 * * 24 * Except as contained in this notice, the name(s) of the above copyright * 25 * holders shall not be used in advertising or otherwise to promote the * 26 * sale, use or other dealings in this Software without prior written * 27 * authorization. * 28 ****************************************************************************/ 29 30 /**************************************************************************** 31 * Author: Juergen Pfeifer, 1995,1997 * 32 ****************************************************************************/ 33 34 /*************************************************************************** 35 * Module m_opts * 36 * Menus option routines * 37 ***************************************************************************/ 38 39 #include "menu.priv.h" 40 41 MODULE_ID("$Id: m_opts.c,v 1.23 2020/12/12 00:38:08 tom Exp $") 42 43 /*--------------------------------------------------------------------------- 44 | Facility : libnmenu 45 | Function : int set_menu_opts(MENU *menu, Menu_Options opts) 46 | 47 | Description : Set the options for this menu. If the new settings 48 | end up in a change of the geometry of the menu, it 49 | will be recalculated. This operation is forbidden if 50 | the menu is already posted. 51 | 52 | Return Values : E_OK - success 53 | E_BAD_ARGUMENT - invalid menu options 54 | E_POSTED - menu is already posted 55 +--------------------------------------------------------------------------*/ 56 MENU_EXPORT(int) 57 set_menu_opts(MENU *menu, Menu_Options opts) 58 { 59 T((T_CALLED("set_menu_opts(%p,%d)"), (void *)menu, opts)); 60 61 opts &= ALL_MENU_OPTS; 62 63 if (opts & ~ALL_MENU_OPTS) 64 RETURN(E_BAD_ARGUMENT); 65 66 if (menu) 67 { 68 if (menu->status & _POSTED) 69 RETURN(E_POSTED); 70 71 if ((opts & O_ROWMAJOR) != (menu->opt & O_ROWMAJOR)) 72 { 73 /* we need this only if the layout really changed ... */ 74 if (menu->items && menu->items[0]) 75 { 76 menu->toprow = 0; 77 menu->curitem = menu->items[0]; 78 assert(menu->curitem); 79 set_menu_format(menu, menu->frows, menu->fcols); 80 } 81 } 82 83 menu->opt = opts; 84 85 if (opts & O_ONEVALUE) 86 { 87 ITEM **item; 88 89 if (((item = menu->items) != (ITEM **)0)) 90 for (; *item; item++) 91 (*item)->value = FALSE; 92 } 93 94 if (opts & O_SHOWDESC) /* this also changes the geometry */ 95 _nc_Calculate_Item_Length_and_Width(menu); 96 } 97 else 98 _nc_Default_Menu.opt = opts; 99 100 RETURN(E_OK); 101 } 102 103 /*--------------------------------------------------------------------------- 104 | Facility : libnmenu 105 | Function : int menu_opts_off(MENU *menu, Menu_Options opts) 106 | 107 | Description : Switch off the options for this menu. If the new settings 108 | end up in a change of the geometry of the menu, it 109 | will be recalculated. This operation is forbidden if 110 | the menu is already posted. 111 | 112 | Return Values : E_OK - success 113 | E_BAD_ARGUMENT - invalid options 114 | E_POSTED - menu is already posted 115 +--------------------------------------------------------------------------*/ 116 MENU_EXPORT(int) 117 menu_opts_off(MENU *menu, Menu_Options opts) 118 { 119 MENU *cmenu = menu; /* use a copy because set_menu_opts must detect 120 121 NULL menu itself to adjust its behavior */ 122 123 T((T_CALLED("menu_opts_off(%p,%d)"), (void *)menu, opts)); 124 125 opts &= ALL_MENU_OPTS; 126 if (opts & ~ALL_MENU_OPTS) 127 RETURN(E_BAD_ARGUMENT); 128 else 129 { 130 Normalize_Menu(cmenu); 131 opts = cmenu->opt & ~opts; 132 returnCode(set_menu_opts(menu, opts)); 133 } 134 } 135 136 /*--------------------------------------------------------------------------- 137 | Facility : libnmenu 138 | Function : int menu_opts_on(MENU *menu, Menu_Options opts) 139 | 140 | Description : Switch on the options for this menu. If the new settings 141 | end up in a change of the geometry of the menu, it 142 | will be recalculated. This operation is forbidden if 143 | the menu is already posted. 144 | 145 | Return Values : E_OK - success 146 | E_BAD_ARGUMENT - invalid menu options 147 | E_POSTED - menu is already posted 148 +--------------------------------------------------------------------------*/ 149 MENU_EXPORT(int) 150 menu_opts_on(MENU *menu, Menu_Options opts) 151 { 152 MENU *cmenu = menu; /* use a copy because set_menu_opts must detect 153 154 NULL menu itself to adjust its behavior */ 155 156 T((T_CALLED("menu_opts_on(%p,%d)"), (void *)menu, opts)); 157 158 opts &= ALL_MENU_OPTS; 159 if (opts & ~ALL_MENU_OPTS) 160 RETURN(E_BAD_ARGUMENT); 161 else 162 { 163 Normalize_Menu(cmenu); 164 opts = cmenu->opt | opts; 165 returnCode(set_menu_opts(menu, opts)); 166 } 167 } 168 169 /*--------------------------------------------------------------------------- 170 | Facility : libnmenu 171 | Function : Menu_Options menu_opts(const MENU *menu) 172 | 173 | Description : Return the options for this menu. 174 | 175 | Return Values : Menu options 176 +--------------------------------------------------------------------------*/ 177 MENU_EXPORT(Menu_Options) 178 menu_opts(const MENU *menu) 179 { 180 T((T_CALLED("menu_opts(%p)"), (const void *)menu)); 181 returnMenuOpts(ALL_MENU_OPTS & Normalize_Menu(menu)->opt); 182 } 183 184 /* m_opts.c ends here */ 185