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+// * This makes emacs happy -*-Mode: C++;-*-
+/****************************************************************************
+ * Copyright (c) 1998 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 <juergen.pfeifer@gmx.net> 1997 *
+ ****************************************************************************/
+
+// $Id: cursesm.h,v 1.12 1999/05/16 17:30:27 juergen Exp $
+
+#ifndef _CURSESM_H
+#define _CURSESM_H
+
+#include <cursesp.h>
+
+extern "C" {
+# include <menu.h>
+}
+//
+// -------------------------------------------------------------------------
+// This wraps the ITEM type of <menu.h>
+// -------------------------------------------------------------------------
+//
+class NCursesMenuItem {
+ friend class NCursesMenu;
+
+protected:
+ ITEM *item;
+
+ inline void OnError (int err) const THROWS(NCursesMenuException) {
+ if (err != E_OK)
+ THROW(new NCursesMenuException (err));
+ }
+
+public:
+ NCursesMenuItem (const char* p_name = NULL,
+ const char* p_descript = NULL ) {
+ item = p_name ? ::new_item (p_name, p_descript) : (ITEM*)0;
+ if (p_name && !item)
+ OnError (E_SYSTEM_ERROR);
+ }
+ // Create an item. If you pass both parameters as NULL, a delimiting
+ // item is constructed which can be used to terminate a list of
+ // NCursesMenu objects.
+
+ virtual ~NCursesMenuItem ();
+ // Release the items memory
+
+ inline const char* name () const {
+ return ::item_name (item);
+ }
+ // Name of the item
+
+ inline const char* description () const {
+ return ::item_description (item);
+ }
+ // Description of the item
+
+ inline int (index) (void) const {
+ return ::item_index (item);
+ }
+ // Index of the item in an item array (or -1)
+
+ inline void options_on (Item_Options options) {
+ OnError (::item_opts_on (item, options));
+ }
+ // Switch on the items options
+
+ inline void options_off (Item_Options options) {
+ OnError (::item_opts_off (item, options));
+ }
+ // Switch off the item's option
+
+ inline Item_Options options () const {
+ return ::item_opts (item);
+ }
+ // Retrieve the items options
+
+ inline void set_options (Item_Options options) {
+ OnError (::set_item_opts (item, options));
+ }
+ // Set the items options
+
+ inline void set_value (bool f) {
+ OnError (::set_item_value (item,f));
+ }
+ // Set/Reset the items selection state
+
+ inline bool value () const {
+ return ::item_value (item);
+ }
+ // Retrieve the items selection state
+
+ inline bool visible () const {
+ return ::item_visible (item);
+ }
+ // Retrieve visibility of the item
+
+ virtual bool action();
+ // Perform an action associated with this item; you may use this in an
+ // user supplied driver for a menu; you may derive from this class and
+ // overload action() to supply items with different actions.
+ // If an action returns true, the menu will be exited. The default action
+ // is to do nothing.
+};
+
+// Prototype for an items callback function.
+typedef bool ITEMCALLBACK(NCursesMenuItem&);
+
+// If you don't like to create a child class for individual items to
+// overload action(), you may use this class and provide a callback
+// function pointer for items.
+class NCursesMenuCallbackItem : public NCursesMenuItem {
+private:
+ const ITEMCALLBACK* p_fct;
+
+public:
+ NCursesMenuCallbackItem(const ITEMCALLBACK* fct = NULL,
+ const char* p_name = NULL,
+ const char* p_descript = NULL )
+ : NCursesMenuItem (p_name, p_descript),
+ p_fct (fct) {
+ }
+
+ virtual ~NCursesMenuCallbackItem();
+
+ bool action();
+};
+//
+// -------------------------------------------------------------------------
+// This wraps the MENU type of <menu.h>
+// -------------------------------------------------------------------------
+//
+class NCursesMenu : public NCursesPanel {
+protected:
+ MENU *menu;
+
+private:
+ NCursesWindow* sub; // the subwindow object
+ bool b_sub_owner; // is this our own subwindow?
+ bool b_framed; // has the menu a border?
+ bool b_autoDelete; // Delete items when deleting menu?
+
+ NCursesMenuItem** my_items; // The array of items for this menu
+
+ // This structure is used for the menu's user data field to link the
+ // MENU* to the C++ object and to provide extra space for a user pointer.
+ typedef struct {
+ void* m_user; // the pointer for the user's data
+ const NCursesMenu* m_back; // backward pointer to C++ object
+ const MENU* m_owner;
+ } UserHook;
+
+ // Get the backward pointer to the C++ object from a MENU
+ static inline NCursesMenu* getHook(const MENU *m) {
+ UserHook* hook = (UserHook*)::menu_userptr(m);
+ assert(hook && hook->m_owner==m);
+ return (NCursesMenu*)(hook->m_back);
+ }
+
+ // This are the built-in hook functions in this C++ binding. In C++ we use
+ // virtual member functions (see below On_..._Init and On_..._Termination)
+ // to provide this functionality in an object oriented manner.
+ static void mnu_init(MENU *);
+ static void mnu_term(MENU *);
+ static void itm_init(MENU *);
+ static void itm_term(MENU *);
+
+ // Calculate ITEM* array for the menu
+ ITEM** mapItems(NCursesMenuItem* nitems[]);
+
+protected:
+ // internal routines
+ inline void set_user(void *user) {
+ UserHook* uptr = (UserHook*)::menu_userptr (menu);
+ assert (uptr && uptr->m_back==this && uptr->m_owner==menu);
+ uptr->m_user = user;
+ }
+
+ inline void *get_user() {
+ UserHook* uptr = (UserHook*)::menu_userptr (menu);
+ assert (uptr && uptr->m_back==this && uptr->m_owner==menu);
+ return uptr->m_user;
+ }
+
+ void InitMenu (NCursesMenuItem* menu[],
+ bool with_frame,
+ bool autoDeleteItems);
+
+ inline void OnError (int err) const THROWS(NCursesMenuException) {
+ if (err != E_OK)
+ THROW(new NCursesMenuException (this, err));
+ }
+
+ // this wraps the menu_driver call.
+ virtual int driver (int c) ;
+
+ // 'Internal' constructor to create a menu without association to
+ // an array of items.
+ NCursesMenu( int lines,
+ int cols,
+ int begin_y = 0,
+ int begin_x = 0)
+ : NCursesPanel(lines,cols,begin_y,begin_x),
+ menu ((MENU*)0) {
+ }
+
+public:
+ // Make a full window size menu
+ NCursesMenu (NCursesMenuItem* Items[],
+ bool with_frame=FALSE, // Reserve space for a frame?
+ bool autoDelete_Items=FALSE) // Autocleanup of Items?
+ : NCursesPanel() {
+ InitMenu(Items, with_frame, autoDelete_Items);
+ }
+
+ // Make a menu with a window of this size.
+ NCursesMenu (NCursesMenuItem* Items[],
+ int lines,
+ int cols,
+ int begin_y = 0,
+ int begin_x = 0,
+ bool with_frame=FALSE, // Reserve space for a frame?
+ bool autoDelete_Items=FALSE) // Autocleanup of Items?
+ : NCursesPanel(lines, cols, begin_y, begin_x) {
+ InitMenu(Items, with_frame, autoDelete_Items);
+ }
+
+ virtual ~NCursesMenu ();
+
+ // Retrieve the menus subwindow
+ inline NCursesWindow& subWindow() const {
+ assert(sub!=NULL);
+ return *sub;
+ }
+
+ // Set the menus subwindow
+ void setSubWindow(NCursesWindow& sub);
+
+ // Set these items for the menu
+ inline void setItems(NCursesMenuItem* Items[]) {
+ OnError(::set_menu_items(menu,mapItems(Items)));
+ }
+
+ // Remove the menu from the screen
+ inline void unpost (void) {
+ OnError (::unpost_menu (menu));
+ }
+
+ // Post the menu to the screen if flag is true, unpost it otherwise
+ inline void post(bool flag = TRUE) {
+ flag ? OnError (::post_menu(menu)) : OnError (::unpost_menu (menu));
+ }
+
+ // Get the numer of rows and columns for this menu
+ inline void scale (int& mrows, int& mcols) const {
+ OnError (::scale_menu (menu, &mrows, &mcols));
+ }
+
+ // Set the format of this menu
+ inline void set_format(int mrows, int mcols) {
+ OnError (::set_menu_format(menu, mrows, mcols));
+ }
+
+ // Get the format of this menu
+ inline void menu_format(int& rows,int& cols) {
+ ::menu_format(menu,&rows,&cols);
+ }
+
+ // Items of the menu
+ inline NCursesMenuItem* items() const {
+ return *my_items;
+ }
+
+ // Get the number of items in this menu
+ inline int count() const {
+ return ::item_count(menu);
+ }
+
+ // Get the current item (i.e. the one the cursor is located)
+ inline NCursesMenuItem* current_item() const {
+ return my_items[::item_index(::current_item(menu))];
+ }
+
+ // Get the marker string
+ inline const char* mark() const {
+ return ::menu_mark(menu);
+ }
+
+ // Set the marker string
+ inline void set_mark(const char *mark) {
+ OnError (::set_menu_mark (menu, mark));
+ }
+
+ // Get the name of the request code c
+ inline static const char* request_name(int c) {
+ return ::menu_request_name(c);
+ }
+
+ // Get the current pattern
+ inline char* pattern() const {
+ return ::menu_pattern(menu);
+ }
+
+ // true if there is a pattern match, false otherwise.
+ bool set_pattern (const char *pat);
+
+ // set the default attributes for the menu
+ // i.e. set fore, back and grey attribute
+ virtual void setDefaultAttributes();
+
+ // Get the menus background attributes
+ inline chtype back() const {
+ return ::menu_back(menu);
+ }
+
+ // Get the menus foreground attributes
+ inline chtype fore() const {
+ return ::menu_fore(menu);
+ }
+
+ // Get the menus grey attributes (used for unselectable items)
+ inline chtype grey() const {
+ return ::menu_grey(menu);
+ }
+
+ // Set the menus background attributes
+ inline chtype set_background(chtype a) {
+ return ::set_menu_back(menu,a);
+ }
+
+ // Set the menus foreground attributes
+ inline chtype set_foreground(chtype a) {
+ return ::set_menu_fore(menu,a);
+ }
+
+ // Set the menus grey attributes (used for unselectable items)
+ inline chtype set_grey(chtype a) {
+ return ::set_menu_grey(menu,a);
+ }
+
+ inline void options_on (Menu_Options opts) {
+ OnError (::menu_opts_on (menu,opts));
+ }
+
+ inline void options_off(Menu_Options opts) {
+ OnError (::menu_opts_off(menu,opts));
+ }
+
+ inline Menu_Options options() const {
+ return ::menu_opts(menu);
+ }
+
+ inline void set_options (Menu_Options opts) {
+ OnError (::set_menu_opts (menu,opts));
+ }
+
+ inline int pad() const {
+ return ::menu_pad(menu);
+ }
+
+ inline void set_pad (int padch) {
+ OnError (::set_menu_pad (menu, padch));
+ }
+
+ // 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
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