libs/flake

KoInteractionStrategy.h

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00001 /* This file is part of the KDE project
00002 
00003    Copyright (C) 2006 Thorsten Zachmann <zachmann@kde.org>
00004    Copyright (C) 2006-2007 Thomas Zander <zander@kde.org>
00005 
00006    This library is free software; you can redistribute it and/or
00007    modify it under the terms of the GNU Library General Public
00008    License as published by the Free Software Foundation; either
00009    version 2 of the License, or (at your option) any later version.
00010 
00011    This library is distributed in the hope that it will be useful,
00012    but WITHOUT ANY WARRANTY; without even the implied warranty of
00013    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014    Library General Public License for more details.
00015 
00016    You should have received a copy of the GNU Library General Public License
00017    along with this library; see the file COPYING.LIB.  If not, write to
00018    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00019  * Boston, MA 02110-1301, USA.
00020 */
00021 
00022 #ifndef KOINTERACTIONSTRATEGY_H
00023 #define KOINTERACTIONSTRATEGY_H
00024 
00025 #include "flake_export.h"
00026 #include "KoSelection.h"
00027 
00028 #include <QList>
00029 #include <QPainter>
00030 
00031 class KoPointerEvent;
00032 class QUndoCommand;
00033 class KoCanvasBase;
00034 class KoInteractionTool;
00035 class KoTool;
00036 
00048 class FLAKE_EXPORT KoInteractionStrategy
00049 {
00050 public:
00052     virtual ~KoInteractionStrategy();
00053 
00058     virtual void paint(QPainter &painter, const KoViewConverter &converter) {
00059         Q_UNUSED(painter); Q_UNUSED(converter);
00060     }
00067     virtual void handleMouseMove(const QPointF &mouseLocation, Qt::KeyboardModifiers modifiers) = 0;
00068 
00074     virtual void handleCustomEvent(KoPointerEvent * event);
00075 
00081     virtual QUndoCommand* createCommand() = 0;
00086     virtual void cancelInteraction();
00090     virtual void finishInteraction(Qt::KeyboardModifiers modifiers) = 0;
00091 
00092 protected:
00094     KoInteractionStrategy(KoTool *parent, KoCanvasBase *canvas);
00095 
00096 protected: // members
00097     KoTool *m_parent; 
00098     QList<KoShape*> m_selectedShapes; 
00099     KoCanvasBase *m_canvas; 
00100 };
00101 
00102 #endif