diff options
Diffstat (limited to 'ncurses-5.3/menu/m_opts.c')
| -rw-r--r-- | ncurses-5.3/menu/m_opts.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/ncurses-5.3/menu/m_opts.c b/ncurses-5.3/menu/m_opts.c new file mode 100644 index 0000000..eb168e1 --- /dev/null +++ b/ncurses-5.3/menu/m_opts.c @@ -0,0 +1,175 @@ +/**************************************************************************** + * Copyright (c) 1998,2000 Free Software Foundation, Inc. * + * * + * Permission is hereby granted, free of charge, to any person obtaining a * + * copy of this software and associated documentation files (the * + * "Software"), to deal in the Software without restriction, including * + * without limitation the rights to use, copy, modify, merge, publish, * + * distribute, distribute with modifications, sublicense, and/or sell * + * copies of the Software, and to permit persons to whom the Software is * + * furnished to do so, subject to the following conditions: * + * * + * The above copyright notice and this permission notice shall be included * + * in all copies or substantial portions of the Software. * + * * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * + * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * + * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * + * * + * Except as contained in this notice, the name(s) of the above copyright * + * holders shall not be used in advertising or otherwise to promote the * + * sale, use or other dealings in this Software without prior written * + * authorization. * + ****************************************************************************/ + +/**************************************************************************** + * Author: Juergen Pfeifer, 1995,1997 * + * Contact: http://www.familiepfeifer.de/Contact.aspx?Lang=en * + ****************************************************************************/ + +/*************************************************************************** +* Module m_opts * +* Menus option routines * +***************************************************************************/ + +#include "menu.priv.h" + +MODULE_ID("$Id$") + +/*--------------------------------------------------------------------------- +| Facility : libnmenu +| Function : int set_menu_opts(MENU *menu, Menu_Options opts) +| +| Description : Set the options for this menu. If the new settings +| end up in a change of the geometry of the menu, it +| will be recalculated. This operation is forbidden if +| the menu is already posted. +| +| Return Values : E_OK - success +| E_BAD_ARGUMENT - invalid menu options +| E_POSTED - menu is already posted ++--------------------------------------------------------------------------*/ +NCURSES_EXPORT(int) +set_menu_opts (MENU * menu, Menu_Options opts) +{ + opts &= ALL_MENU_OPTS; + + if (opts & ~ALL_MENU_OPTS) + RETURN(E_BAD_ARGUMENT); + + if (menu) + { + if ( menu->status & _POSTED ) + RETURN(E_POSTED); + + if ( (opts&O_ROWMAJOR) != (menu->opt&O_ROWMAJOR)) + { + /* we need this only if the layout really changed ... */ + if (menu->items && menu->items[0]) + { + menu->toprow = 0; + menu->curitem = menu->items[0]; + assert(menu->curitem); + set_menu_format( menu, menu->frows, menu->fcols ); + } + } + + menu->opt = opts; + + if (opts & O_ONEVALUE) + { + ITEM **item; + + if ( ((item=menu->items) != (ITEM**)0) ) + for(;*item;item++) + (*item)->value = FALSE; + } + + if (opts & O_SHOWDESC) /* this also changes the geometry */ + _nc_Calculate_Item_Length_and_Width( menu ); + } + else + _nc_Default_Menu.opt = opts; + + RETURN(E_OK); +} + +/*--------------------------------------------------------------------------- +| Facility : libnmenu +| Function : int menu_opts_off(MENU *menu, Menu_Options opts) +| +| Description : Switch off the options for this menu. If the new settings +| end up in a change of the geometry of the menu, it +| will be recalculated. This operation is forbidden if +| the menu is already posted. +| +| Return Values : E_OK - success +| E_BAD_ARGUMENT - invalid options +| E_POSTED - menu is already posted ++--------------------------------------------------------------------------*/ +NCURSES_EXPORT(int) +menu_opts_off (MENU *menu, Menu_Options opts) +{ + MENU *cmenu = menu; /* use a copy because set_menu_opts must detect + NULL menu itself to adjust its behaviour */ + + opts &= ALL_MENU_OPTS; + if (opts & ~ALL_MENU_OPTS) + RETURN(E_BAD_ARGUMENT); + else + { + Normalize_Menu(cmenu); + opts = cmenu->opt & ~opts; + return set_menu_opts( menu, opts ); + } +} + +/*--------------------------------------------------------------------------- +| Facility : libnmenu +| Function : int menu_opts_on(MENU *menu, Menu_Options opts) +| +| Description : Switch on the options for this menu. If the new settings +| end up in a change of the geometry of the menu, it +| will be recalculated. This operation is forbidden if +| the menu is already posted. +| +| Return Values : E_OK - success +| E_BAD_ARGUMENT - invalid menu options +| E_POSTED - menu is already posted ++--------------------------------------------------------------------------*/ +NCURSES_EXPORT(int) +menu_opts_on (MENU * menu, Menu_Options opts) +{ + MENU *cmenu = menu; /* use a copy because set_menu_opts must detect + NULL menu itself to adjust its behaviour */ + + opts &= ALL_MENU_OPTS; + if (opts & ~ALL_MENU_OPTS) + RETURN(E_BAD_ARGUMENT); + else + { + Normalize_Menu(cmenu); + opts = cmenu->opt | opts; + return set_menu_opts(menu, opts); + } +} + +/*--------------------------------------------------------------------------- +| Facility : libnmenu +| Function : Menu_Options menu_opts(const MENU *menu) +| +| Description : Return the options for this menu. +| +| Return Values : Menu options ++--------------------------------------------------------------------------*/ +NCURSES_EXPORT(Menu_Options) +menu_opts (const MENU *menu) +{ + return (ALL_MENU_OPTS & Normalize_Menu( menu )->opt); +} + +/* m_opts.c ends here */ |