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Diffstat (limited to 'krita/sdk/kis_canvas_observer.h')
-rw-r--r-- | krita/sdk/kis_canvas_observer.h | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/krita/sdk/kis_canvas_observer.h b/krita/sdk/kis_canvas_observer.h deleted file mode 100644 index e62d23f3..00000000 --- a/krita/sdk/kis_canvas_observer.h +++ /dev/null @@ -1,55 +0,0 @@ -/* - * 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_ - |