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Diffstat (limited to 'lib/libmenu/m_win.c')
| -rw-r--r-- | lib/libmenu/m_win.c | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/lib/libmenu/m_win.c b/lib/libmenu/m_win.c new file mode 100644 index 00000000000..7baad40c5d8 --- /dev/null +++ b/lib/libmenu/m_win.c @@ -0,0 +1,131 @@ + +/*************************************************************************** +* COPYRIGHT NOTICE * +**************************************************************************** +* ncurses is copyright (C) 1992-1995 * +* Zeyd M. Ben-Halim * +* zmbenhal@netcom.com * +* Eric S. Raymond * +* esr@snark.thyrsus.com * +* * +* Permission is hereby granted to reproduce and distribute ncurses * +* by any means and for any fee, whether alone or as part of a * +* larger distribution, in source or in binary form, PROVIDED * +* this notice is included with any such distribution, and is not * +* removed from any of its header files. Mention of ncurses in any * +* applications linked with it is highly appreciated. * +* * +* ncurses comes AS IS with no warranty, implied or expressed. * +* * +***************************************************************************/ + +/*************************************************************************** +* Module menu_win * +* Menus window and subwindow association routines * +***************************************************************************/ + +#include "menu.priv.h" + +/*--------------------------------------------------------------------------- +| Facility : libnmenu +| Function : int set_menu_win(MENU *menu, WINDOW *win) +| +| Description : Sets the window of the menu. +| +| Return Values : E_OK - success +| E_POSTED - menu is already posted ++--------------------------------------------------------------------------*/ +int set_menu_win(MENU *menu, WINDOW *win) +{ + if (menu) + { + if ( menu->status & _POSTED ) + RETURN(E_POSTED); + menu->userwin = win; + _nc_Calculate_Item_Length_and_Width(menu); + } + else + _nc_Default_Menu.userwin = win; + + RETURN(E_OK); +} + +/*--------------------------------------------------------------------------- +| Facility : libnmenu +| Function : WINDOW *menu_win(const MENU *) +| +| Description : Returns pointer to the window of the menu +| +| Return Values : NULL on error, otherwise pointer to window ++--------------------------------------------------------------------------*/ +WINDOW *menu_win(const MENU *menu) +{ + return Normalize_Menu(menu)->userwin; +} + +/*--------------------------------------------------------------------------- +| Facility : libnmenu +| Function : int set_menu_sub(MENU *menu, WINDOW *win) +| +| Description : Sets the subwindow of the menu. +| +| Return Values : E_OK - success +| E_POSTED - menu is already posted ++--------------------------------------------------------------------------*/ +int set_menu_sub(MENU *menu, WINDOW *win) +{ + if (menu) + { + if ( menu->status & _POSTED ) + RETURN(E_POSTED); + menu->usersub = win; + _nc_Calculate_Item_Length_and_Width(menu); + } + else + _nc_Default_Menu.usersub = win; + + RETURN(E_OK); +} + +/*--------------------------------------------------------------------------- +| Facility : libnmenu +| Function : WINDOW *menu_sub(const MENU *menu) +| +| Description : Returns a pointer to the subwindow of the menu +| +| Return Values : NULL on error, otherwise a pointer to the window ++--------------------------------------------------------------------------*/ +WINDOW *menu_sub(const MENU * menu) +{ + return Normalize_Menu(menu)->usersub; +} + +/*--------------------------------------------------------------------------- +| Facility : libnmenu +| Function : int scale_menu(const MENU *menu) +| +| Description : Returns the minimum window size necessary for the +| subwindow of menu. +| +| Return Values : E_OK - success +| E_BAD_ARGUMENT - invalid menu pointer +| E_NOT_CONNECTED - no items are connected to menu ++--------------------------------------------------------------------------*/ +int scale_menu(const MENU *menu, int *rows, int *cols) +{ + if (!menu) + RETURN( E_BAD_ARGUMENT ); + + if (menu->items && *(menu->items)) + { + if (rows) + *rows = menu->height; + if (cols) + *cols = menu->width; + RETURN(E_OK); + } + else + RETURN( E_NOT_CONNECTED ); +} + +/* m_win.c ends here */ |