From 07ab95690e85015a6623ffd4443daa1fd42b66b5 Mon Sep 17 00:00:00 2001 From: jaortega Date: Sun, 18 Feb 2001 22:21:09 +0000 Subject: mvc effort abandoned --- mixmvc/mvc.h | 105 ----------------------------------------------------------- 1 file changed, 105 deletions(-) delete mode 100644 mixmvc/mvc.h (limited to 'mixmvc/mvc.h') diff --git a/mixmvc/mvc.h b/mixmvc/mvc.h deleted file mode 100644 index 6371a27..0000000 --- a/mixmvc/mvc.h +++ /dev/null @@ -1,105 +0,0 @@ -/* -*-c-*- ---------------- mvc.h : - * This header defines basic types supporting the MVC pattern - * ------------------------------------------------------------------ - * Last change: Time-stamp: <01/02/13 02:16:08 jose> - * ------------------------------------------------------------------ - * Copyright (C) 2001 Free Software Foundation, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - * - */ - - -#ifndef MVC_H -#define MVC_H - -#include - -/* the subject which is observed (the model) */ -typedef struct subject_t subject_t; - -/* subject's observer (the view) */ -typedef struct observer_t observer_t; - -/* list of observers (maintained by the subject) */ -typedef GSList observer_list_t; - -/* data used in callbacks */ -typedef void data_t; - -/* (virtual) function used by subject on each observer to notify an update */ -typedef void (*update_callback_t)(observer_t *obs, data_t *data); - -/* (virtual) function used by observers to notify subject of a change */ -typedef void (*notify_callback_t)(subject_t *subj, data_t *data); - -/* base subject type, containing a notify callback to be invoked - by observers */ -struct subject_t -{ - notify_callback_t notify; /* notify callback used by observers */ - observer_list_t *observers; /* the list of current observers */ -}; - -/* base observer type, containing an update callback (to be invoked by - the subject) and a pointer to the observed subject -*/ -struct observer_t -{ - update_callback_t update; /* update callback used by subject */ - subject_t *subject; /* observed subject */ -}; - - -/* subject interface */ -/* init a subject */ -#define subject_init(sub) \ -do { \ - (sub)->notify = NULL; \ - (sub)->observers = NULL; \ -} while (FALSE) - -/* clean up a subject */ -extern void -subject_clean (subject_t *sub); - -/* add a new observer */ -extern void -subject_add_observer (subject_t *sub, observer_t *obs); - -/* remove an observer */ -extern void -subject_remove_observer (subject_t *sub, observer_t *obs); - -/* notify all observers of a change */ -extern void -subject_update_observers (subject_t *sub, data_t *data); - -/* observer interface */ -/* init an observer */ -#define observer_init(obs) \ -do { \ - (obs)->update = NULL; \ - (obs)->subject = NULL; \ -} while (FALSE) - -/* macro used by observers to notify their subject of a change */ -#define observer_notify_subject(obs, data) \ - (*((observer_t *)obs->subject->notify)((observer_t *)obs->subject, \ - (data_t *)data)) - - -#endif /* MVC_H */ - -- cgit v1.2.3