/***************************************************************************
 *   Copyright (C) 2007 by Carsten Niehaus <cniehaus@kde.org>              *
 *                                                                         *
 *   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 ISOTOPEVIEW_H
#define ISOTOPEVIEW_H

#include <QWidget>
#include <QGraphicsView>
#include <QResizeEvent>

class IsotopeScene;

class IsotopeView : public QGraphicsView
{
    Q_OBJECT

public:
    IsotopeView(QWidget *parent = 0);
    virtual ~IsotopeView();

private:
    IsotopeScene *m_scene;
    double m_zoomLevel;

public:
    double zoomLevel() {
        return m_zoomLevel;
    }
    QPolygonF visibleSceneRect() const {
        return mapToScene(viewport()->rect());
    }

signals:
    void zoomLevelChanged(double zoomLevel);
    void visibleSceneRectChanged(const QPolygonF &sceneRect);

public:
    void setZoom(double zoom);

protected:
    void resizeEvent(QResizeEvent *event);
    void mouseMoveEvent(QMouseEvent *event);
    void wheelEvent(QWheelEvent *event);
};

#endif // ISOTOPEVIEW_H
