593 lines
17 KiB
C
593 lines
17 KiB
C
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// * This makes emacs happy -*-Mode: C++;-*-
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/****************************************************************************
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* Copyright (c) 1998 Free Software Foundation, Inc. *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a *
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* copy of this software and associated documentation files (the *
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* "Software"), to deal in the Software without restriction, including *
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* without limitation the rights to use, copy, modify, merge, publish, *
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* distribute, distribute with modifications, sublicense, and/or sell *
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* copies of the Software, and to permit persons to whom the Software is *
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* furnished to do so, subject to the following conditions: *
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* *
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* The above copyright notice and this permission notice shall be included *
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* in all copies or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
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* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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* *
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* Except as contained in this notice, the name(s) of the above copyright *
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* holders shall not be used in advertising or otherwise to promote the *
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* sale, use or other dealings in this Software without prior written *
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* authorization. *
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****************************************************************************/
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/****************************************************************************
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* Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1997 *
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****************************************************************************/
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// $Id: cursesm.h,v 1.12 1999/05/16 17:30:27 juergen Exp $
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#ifndef _CURSESM_H
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#define _CURSESM_H
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#include <cursesp.h>
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extern "C" {
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# include <menu.h>
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}
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//
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// -------------------------------------------------------------------------
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// This wraps the ITEM type of <menu.h>
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// -------------------------------------------------------------------------
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//
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class NCursesMenuItem {
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friend class NCursesMenu;
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protected:
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ITEM *item;
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inline void OnError (int err) const THROWS(NCursesMenuException) {
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if (err != E_OK)
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THROW(new NCursesMenuException (err));
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}
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public:
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NCursesMenuItem (const char* p_name = NULL,
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const char* p_descript = NULL ) {
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item = p_name ? ::new_item (p_name, p_descript) : (ITEM*)0;
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if (p_name && !item)
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OnError (E_SYSTEM_ERROR);
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}
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// Create an item. If you pass both parameters as NULL, a delimiting
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// item is constructed which can be used to terminate a list of
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// NCursesMenu objects.
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virtual ~NCursesMenuItem ();
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// Release the items memory
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inline const char* name () const {
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return ::item_name (item);
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}
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// Name of the item
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inline const char* description () const {
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return ::item_description (item);
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}
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// Description of the item
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inline int (index) (void) const {
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return ::item_index (item);
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}
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// Index of the item in an item array (or -1)
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inline void options_on (Item_Options options) {
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OnError (::item_opts_on (item, options));
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}
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// Switch on the items options
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inline void options_off (Item_Options options) {
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OnError (::item_opts_off (item, options));
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}
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// Switch off the item's option
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inline Item_Options options () const {
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return ::item_opts (item);
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}
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// Retrieve the items options
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inline void set_options (Item_Options options) {
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OnError (::set_item_opts (item, options));
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}
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// Set the items options
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inline void set_value (bool f) {
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OnError (::set_item_value (item,f));
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}
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// Set/Reset the items selection state
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inline bool value () const {
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return ::item_value (item);
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}
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// Retrieve the items selection state
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inline bool visible () const {
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return ::item_visible (item);
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}
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// Retrieve visibility of the item
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virtual bool action();
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// Perform an action associated with this item; you may use this in an
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// user supplied driver for a menu; you may derive from this class and
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// overload action() to supply items with different actions.
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// If an action returns true, the menu will be exited. The default action
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// is to do nothing.
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};
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// Prototype for an items callback function.
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typedef bool ITEMCALLBACK(NCursesMenuItem&);
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// If you don't like to create a child class for individual items to
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// overload action(), you may use this class and provide a callback
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// function pointer for items.
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class NCursesMenuCallbackItem : public NCursesMenuItem {
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private:
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const ITEMCALLBACK* p_fct;
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public:
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NCursesMenuCallbackItem(const ITEMCALLBACK* fct = NULL,
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const char* p_name = NULL,
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const char* p_descript = NULL )
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: NCursesMenuItem (p_name, p_descript),
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p_fct (fct) {
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}
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virtual ~NCursesMenuCallbackItem();
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bool action();
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};
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//
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// -------------------------------------------------------------------------
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// This wraps the MENU type of <menu.h>
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// -------------------------------------------------------------------------
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//
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class NCursesMenu : public NCursesPanel {
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protected:
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MENU *menu;
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private:
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NCursesWindow* sub; // the subwindow object
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bool b_sub_owner; // is this our own subwindow?
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bool b_framed; // has the menu a border?
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bool b_autoDelete; // Delete items when deleting menu?
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NCursesMenuItem** my_items; // The array of items for this menu
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// This structure is used for the menu's user data field to link the
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// MENU* to the C++ object and to provide extra space for a user pointer.
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typedef struct {
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void* m_user; // the pointer for the user's data
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const NCursesMenu* m_back; // backward pointer to C++ object
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const MENU* m_owner;
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} UserHook;
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// Get the backward pointer to the C++ object from a MENU
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static inline NCursesMenu* getHook(const MENU *m) {
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UserHook* hook = (UserHook*)::menu_userptr(m);
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assert(hook && hook->m_owner==m);
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return (NCursesMenu*)(hook->m_back);
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}
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// This are the built-in hook functions in this C++ binding. In C++ we use
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// virtual member functions (see below On_..._Init and On_..._Termination)
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// to provide this functionality in an object oriented manner.
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static void mnu_init(MENU *);
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static void mnu_term(MENU *);
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static void itm_init(MENU *);
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static void itm_term(MENU *);
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// Calculate ITEM* array for the menu
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ITEM** mapItems(NCursesMenuItem* nitems[]);
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protected:
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// internal routines
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inline void set_user(void *user) {
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UserHook* uptr = (UserHook*)::menu_userptr (menu);
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assert (uptr && uptr->m_back==this && uptr->m_owner==menu);
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uptr->m_user = user;
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}
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inline void *get_user() {
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UserHook* uptr = (UserHook*)::menu_userptr (menu);
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assert (uptr && uptr->m_back==this && uptr->m_owner==menu);
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return uptr->m_user;
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}
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void InitMenu (NCursesMenuItem* menu[],
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bool with_frame,
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bool autoDeleteItems);
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inline void OnError (int err) const THROWS(NCursesMenuException) {
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if (err != E_OK)
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THROW(new NCursesMenuException (this, err));
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}
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// this wraps the menu_driver call.
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virtual int driver (int c) ;
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// 'Internal' constructor to create a menu without association to
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// an array of items.
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NCursesMenu( int lines,
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int cols,
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int begin_y = 0,
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int begin_x = 0)
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: NCursesPanel(lines,cols,begin_y,begin_x),
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menu ((MENU*)0) {
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}
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public:
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// Make a full window size menu
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NCursesMenu (NCursesMenuItem* Items[],
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bool with_frame=FALSE, // Reserve space for a frame?
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bool autoDelete_Items=FALSE) // Autocleanup of Items?
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: NCursesPanel() {
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InitMenu(Items, with_frame, autoDelete_Items);
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}
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// Make a menu with a window of this size.
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NCursesMenu (NCursesMenuItem* Items[],
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int lines,
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int cols,
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int begin_y = 0,
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int begin_x = 0,
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bool with_frame=FALSE, // Reserve space for a frame?
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bool autoDelete_Items=FALSE) // Autocleanup of Items?
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: NCursesPanel(lines, cols, begin_y, begin_x) {
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InitMenu(Items, with_frame, autoDelete_Items);
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}
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virtual ~NCursesMenu ();
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// Retrieve the menus subwindow
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inline NCursesWindow& subWindow() const {
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assert(sub!=NULL);
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return *sub;
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}
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// Set the menus subwindow
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void setSubWindow(NCursesWindow& sub);
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// Set these items for the menu
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inline void setItems(NCursesMenuItem* Items[]) {
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OnError(::set_menu_items(menu,mapItems(Items)));
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}
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// Remove the menu from the screen
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inline void unpost (void) {
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OnError (::unpost_menu (menu));
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}
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// Post the menu to the screen if flag is true, unpost it otherwise
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inline void post(bool flag = TRUE) {
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flag ? OnError (::post_menu(menu)) : OnError (::unpost_menu (menu));
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}
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// Get the numer of rows and columns for this menu
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inline void scale (int& mrows, int& mcols) const {
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OnError (::scale_menu (menu, &mrows, &mcols));
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}
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// Set the format of this menu
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inline void set_format(int mrows, int mcols) {
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OnError (::set_menu_format(menu, mrows, mcols));
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}
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// Get the format of this menu
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inline void menu_format(int& rows,int& cols) {
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::menu_format(menu,&rows,&cols);
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}
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// Items of the menu
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inline NCursesMenuItem* items() const {
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return *my_items;
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}
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// Get the number of items in this menu
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inline int count() const {
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return ::item_count(menu);
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}
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// Get the current item (i.e. the one the cursor is located)
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inline NCursesMenuItem* current_item() const {
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return my_items[::item_index(::current_item(menu))];
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}
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// Get the marker string
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inline const char* mark() const {
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return ::menu_mark(menu);
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}
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// Set the marker string
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inline void set_mark(const char *mark) {
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OnError (::set_menu_mark (menu, mark));
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}
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// Get the name of the request code c
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inline static const char* request_name(int c) {
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return ::menu_request_name(c);
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}
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// Get the current pattern
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inline char* pattern() const {
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return ::menu_pattern(menu);
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}
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// true if there is a pattern match, false otherwise.
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bool set_pattern (const char *pat);
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// set the default attributes for the menu
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// i.e. set fore, back and grey attribute
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virtual void setDefaultAttributes();
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// Get the menus background attributes
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inline chtype back() const {
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return ::menu_back(menu);
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}
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// Get the menus foreground attributes
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inline chtype fore() const {
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return ::menu_fore(menu);
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}
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// Get the menus grey attributes (used for unselectable items)
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inline chtype grey() const {
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return ::menu_grey(menu);
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}
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// Set the menus background attributes
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inline chtype set_background(chtype a) {
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return ::set_menu_back(menu,a);
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}
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// Set the menus foreground attributes
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inline chtype set_foreground(chtype a) {
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return ::set_menu_fore(menu,a);
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}
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// Set the menus grey attributes (used for unselectable items)
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inline chtype set_grey(chtype a) {
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return ::set_menu_grey(menu,a);
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}
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inline void options_on (Menu_Options opts) {
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OnError (::menu_opts_on (menu,opts));
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}
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inline void options_off(Menu_Options opts) {
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OnError (::menu_opts_off(menu,opts));
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}
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inline Menu_Options options() const {
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return ::menu_opts(menu);
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}
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inline void set_options (Menu_Options opts) {
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OnError (::set_menu_opts (menu,opts));
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}
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inline int pad() const {
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return ::menu_pad(menu);
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}
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inline void set_pad (int padch) {
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OnError (::set_menu_pad (menu, padch));
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}
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// Position the cursor to the current item
|
||
|
|
inline void position_cursor () const {
|
||
|
|
OnError (::pos_menu_cursor (menu));
|
||
|
|
}
|
||
|
|
|
||
|
|
// Set the current item
|
||
|
|
inline void set_current(NCursesMenuItem& I) {
|
||
|
|
OnError (::set_current_item(menu, I.item));
|
||
|
|
}
|
||
|
|
|
||
|
|
// Get the current top row of the menu
|
||
|
|
inline int top_row (void) const {
|
||
|
|
return ::top_row (menu);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Set the current top row of the menu
|
||
|
|
inline void set_top_row (int row) {
|
||
|
|
OnError (::set_top_row (menu, row));
|
||
|
|
}
|
||
|
|
|
||
|
|
// spacing control
|
||
|
|
// Set the spacing for the menu
|
||
|
|
inline void setSpacing(int spc_description,
|
||
|
|
int spc_rows,
|
||
|
|
int spc_columns) {
|
||
|
|
OnError(::set_menu_spacing(menu,
|
||
|
|
spc_description,
|
||
|
|
spc_rows,
|
||
|
|
spc_columns));
|
||
|
|
}
|
||
|
|
|
||
|
|
// Get the spacing info for the menu
|
||
|
|
inline void Spacing(int& spc_description,
|
||
|
|
int& spc_rows,
|
||
|
|
int& spc_columns) const {
|
||
|
|
OnError(::menu_spacing(menu,
|
||
|
|
&spc_description,
|
||
|
|
&spc_rows,
|
||
|
|
&spc_columns));
|
||
|
|
}
|
||
|
|
|
||
|
|
// Decorations
|
||
|
|
inline void frame(const char *title=NULL, const char* btitle=NULL) {
|
||
|
|
if (b_framed)
|
||
|
|
NCursesPanel::frame(title,btitle);
|
||
|
|
else
|
||
|
|
OnError(E_SYSTEM_ERROR);
|
||
|
|
}
|
||
|
|
|
||
|
|
inline void boldframe(const char *title=NULL, const char* btitle=NULL) {
|
||
|
|
if (b_framed)
|
||
|
|
NCursesPanel::boldframe(title,btitle);
|
||
|
|
else
|
||
|
|
OnError(E_SYSTEM_ERROR);
|
||
|
|
}
|
||
|
|
|
||
|
|
inline void label(const char *topLabel, const char *bottomLabel) {
|
||
|
|
if (b_framed)
|
||
|
|
NCursesPanel::label(topLabel,bottomLabel);
|
||
|
|
else
|
||
|
|
OnError(E_SYSTEM_ERROR);
|
||
|
|
}
|
||
|
|
|
||
|
|
// -----
|
||
|
|
// Hooks
|
||
|
|
// -----
|
||
|
|
|
||
|
|
// Called after the menu gets repositioned in its window.
|
||
|
|
// This is especially true if the menu is posted.
|
||
|
|
virtual void On_Menu_Init();
|
||
|
|
|
||
|
|
// Called before the menu gets repositioned in its window.
|
||
|
|
// This is especially true if the menu is unposted.
|
||
|
|
virtual void On_Menu_Termination();
|
||
|
|
|
||
|
|
// Called after the item became the current item
|
||
|
|
virtual void On_Item_Init(NCursesMenuItem& item);
|
||
|
|
|
||
|
|
// Called before this item is left as current item.
|
||
|
|
virtual void On_Item_Termination(NCursesMenuItem& item);
|
||
|
|
|
||
|
|
// Provide a default key virtualization. Translate the keyboard
|
||
|
|
// code c into a menu request code.
|
||
|
|
// The default implementation provides a hopefully straightforward
|
||
|
|
// mapping for the most common keystrokes and menu requests.
|
||
|
|
virtual int virtualize(int c);
|
||
|
|
|
||
|
|
|
||
|
|
// Operators
|
||
|
|
inline NCursesMenuItem* operator[](int i) const {
|
||
|
|
if ( (i < 0) || (i >= ::item_count (menu)) )
|
||
|
|
OnError (E_BAD_ARGUMENT);
|
||
|
|
return (my_items[i]);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Perform the menu's operation
|
||
|
|
// Return the item where you left the selection mark for a single
|
||
|
|
// selection menu, or NULL for a multivalued menu.
|
||
|
|
virtual NCursesMenuItem* operator()(void);
|
||
|
|
|
||
|
|
// --------------------
|
||
|
|
// Exception handlers
|
||
|
|
// Called by operator()
|
||
|
|
// --------------------
|
||
|
|
|
||
|
|
// Called if the request is denied
|
||
|
|
virtual void On_Request_Denied(int c) const;
|
||
|
|
|
||
|
|
// Called if the item is not selectable
|
||
|
|
virtual void On_Not_Selectable(int c) const;
|
||
|
|
|
||
|
|
// Called if pattern doesn't match
|
||
|
|
virtual void On_No_Match(int c) const;
|
||
|
|
|
||
|
|
// Called if the command is unknown
|
||
|
|
virtual void On_Unknown_Command(int c) const;
|
||
|
|
|
||
|
|
};
|
||
|
|
//
|
||
|
|
// -------------------------------------------------------------------------
|
||
|
|
// This is the typical C++ typesafe way to allow to attach
|
||
|
|
// user data to an item of a menu. Its assumed that the user
|
||
|
|
// data belongs to some class T. Use T as template argument
|
||
|
|
// to create a UserItem.
|
||
|
|
// -------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
template<class T> class NCursesUserItem : public NCursesMenuItem
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
NCursesUserItem (const char* p_name,
|
||
|
|
const char* p_descript = NULL,
|
||
|
|
const T* p_UserData = (T*)0)
|
||
|
|
: NCursesMenuItem (p_name, p_descript) {
|
||
|
|
if (item)
|
||
|
|
OnError (::set_item_userptr (item, (void *)p_UserData));
|
||
|
|
};
|
||
|
|
|
||
|
|
virtual ~NCursesUserItem() {};
|
||
|
|
|
||
|
|
inline const T* UserData (void) const {
|
||
|
|
return (const T*)::item_userptr (item);
|
||
|
|
};
|
||
|
|
|
||
|
|
inline virtual void setUserData(const T* p_UserData) {
|
||
|
|
if (item)
|
||
|
|
OnError (::set_item_userptr (item, (void *)p_UserData));
|
||
|
|
}
|
||
|
|
};
|
||
|
|
//
|
||
|
|
// -------------------------------------------------------------------------
|
||
|
|
// The same mechanism is used to attach user data to a menu
|
||
|
|
// -------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
template<class T> class NCursesUserMenu : public NCursesMenu
|
||
|
|
{
|
||
|
|
protected:
|
||
|
|
NCursesUserMenu( int lines,
|
||
|
|
int cols,
|
||
|
|
int begin_y = 0,
|
||
|
|
int begin_x = 0,
|
||
|
|
const T* p_UserData = (T*)0)
|
||
|
|
: NCursesMenu(lines,cols,begin_y,begin_x) {
|
||
|
|
if (menu)
|
||
|
|
set_user ((void *)p_UserData);
|
||
|
|
}
|
||
|
|
|
||
|
|
public:
|
||
|
|
NCursesUserMenu (NCursesMenuItem Items[],
|
||
|
|
const T* p_UserData = (T*)0,
|
||
|
|
bool with_frame=FALSE,
|
||
|
|
bool autoDelete_Items=FALSE)
|
||
|
|
: NCursesMenu (Items, with_frame, autoDelete_Items) {
|
||
|
|
if (menu)
|
||
|
|
set_user ((void *)p_UserData);
|
||
|
|
};
|
||
|
|
|
||
|
|
NCursesUserMenu (NCursesMenuItem Items[],
|
||
|
|
int lines,
|
||
|
|
int cols,
|
||
|
|
int begin_y = 0,
|
||
|
|
int begin_x = 0,
|
||
|
|
const T* p_UserData = (T*)0,
|
||
|
|
bool with_frame=FALSE)
|
||
|
|
: NCursesMenu (Items, lines, cols, begin_y, begin_x, with_frame) {
|
||
|
|
if (menu)
|
||
|
|
set_user ((void *)p_UserData);
|
||
|
|
};
|
||
|
|
|
||
|
|
virtual ~NCursesUserMenu() {
|
||
|
|
};
|
||
|
|
|
||
|
|
inline T* UserData (void) const {
|
||
|
|
return (T*)get_user ();
|
||
|
|
};
|
||
|
|
|
||
|
|
inline virtual void setUserData (const T* p_UserData) {
|
||
|
|
if (menu)
|
||
|
|
set_user ((void *)p_UserData);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif // _CURSESM_H
|