libs/flake

KoZoomTool.h

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00001 /* This file is part of the KDE project
00002  *
00003  * Copyright (C) 2006-2007 Thomas Zander <zander@kde.org>
00004  * Copyright (C) 2006 Thorsten Zachmann <zachmann@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 KOZOOMTOOL_H
00023 #define KOZOOMTOOL_H
00024 
00025 #include "KoInteractionTool.h"
00026 
00027 #include <QCursor>
00028 
00029 class KoCanvasBase;
00030 class KoCanvasController;
00031 
00033 class KoZoomTool : public KoInteractionTool
00034 {
00035 public:
00040     explicit KoZoomTool(KoCanvasBase *canvas);
00042     virtual void wheelEvent(KoPointerEvent * event);
00044     virtual void mouseReleaseEvent(KoPointerEvent *event);
00046     virtual void mouseMoveEvent(KoPointerEvent *event);
00048     virtual void keyPressEvent(QKeyEvent *event);
00050     virtual void keyReleaseEvent(QKeyEvent *event);
00052     virtual void activate(bool temporary = false);
00054     virtual void mouseDoubleClickEvent(KoPointerEvent *event);
00055 
00056     void setCanvasController(KoCanvasController *controller) {
00057         m_controller = controller;
00058     }
00059 
00060     void setZoomInMode(bool zoomIn);
00061 
00062 protected:
00063     QWidget* createOptionWidget();
00064 
00065 private:
00066     virtual KoInteractionStrategy *createStrategy(KoPointerEvent *event);
00067 
00068     void updateCursor(bool swap);
00069 
00070     KoCanvasController *m_controller;
00071     QCursor m_inCursor;
00072     QCursor m_outCursor;
00073     bool m_temporary;
00074     bool m_zoomInMode;
00075 };
00076 
00077 #endif