krita

kis_canvas_observer.h

00001 /*
00002  *  Copyright (c) 2003 Patrick Julien <freak@codepimps.org>
00003  *
00004  *  This program is free software; you can redistribute it and/or modify
00005  *  it under the terms of the GNU General Public License as published by
00006  *  the Free Software Foundation; either version 2 of the License, or
00007  *  (at your option) any later version.
00008  *
00009  *  This program is distributed in the hope that it will be useful,
00010  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012  *  GNU General Public License for more details.
00013  *
00014  *  You should have received a copy of the GNU General Public License
00015  *  along with this program; if not, write to the Free Software
00016  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
00017  */
00018 
00019 #ifndef KIS_CANVAS_OBSERVER_H_
00020 #define KIS_CANVAS_OBSERVER_H_
00021 
00022 class KisCanvasSubject;
00023 
00033 class KisCanvasObserver {
00034 public:
00035     KisCanvasObserver() {};
00036     virtual ~KisCanvasObserver() {};
00037 
00038 public:
00047     virtual void update(KisCanvasSubject *subject) = 0;
00048 
00049 private:
00050     KisCanvasObserver(const KisCanvasObserver&);
00051     KisCanvasObserver& operator=(const KisCanvasObserver&);
00052 };
00053 
00054 #endif // KIS_CANVAS_OBSERVER_H_
00055 
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