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diff --git a/krita/sdk/kis_canvas_observer.h b/krita/sdk/kis_canvas_observer.h
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-/*
- * Copyright (c) 2003 Patrick Julien <[email protected]>
- *
- * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- */
-
-#ifndef KIS_CANVAS_OBSERVER_H_
-#define KIS_CANVAS_OBSERVER_H_
-
-class KisCanvasSubject;
-
-/**
- * This is the base interface plugins use to implement the Observer
- * design pattern. Observer can register themselves with an implementation
- * of KisCanvasSubject. The KisCanvasSubject will then call update()
- * on all registered observers whenever something interesting has happened.
- *
- * (This is something my predecessor should have done with signals and slots,
- * I think...)
- */
-class KisCanvasObserver {
-public:
- KisCanvasObserver() {};
- virtual ~KisCanvasObserver() {};
-
-public:
- /**
- * Implement this function to query the KisCanvasSubject implementation
- * about state that may be interesting, such as current paint color and
- * so on.
- *
- * @param subject the KisCanvasSubject that may know something that's
- * interesting for us.
- */
- virtual void update(KisCanvasSubject *subject) = 0;
-
-private:
- KisCanvasObserver(const KisCanvasObserver&);
- KisCanvasObserver& operator=(const KisCanvasObserver&);
-};
-
-#endif // KIS_CANVAS_OBSERVER_H_
-