/***************************************************************************
 *   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 ISOTOPEGUIDEVIEW_H
#define ISOTOPEGUIDEVIEW_H

#include <QGraphicsView>
#include <QResizeEvent>
#include <QMouseEvent>

#include "isotopeview.h"

class IsotopeGuideView : public QGraphicsView
{
    Q_OBJECT

public:
    IsotopeGuideView(QWidget *parent = 0);
    void setGuidedView(IsotopeView *guidedView);

protected:
    void drawForeground(QPainter *painter, const QRectF &rect);

private:
    IsotopeView *m_guidedView;
    double m_zoomLevel;
    double m_scale;
    QPolygonF m_visibleSceneRect;
    QPoint m_lastMousePos;
    bool m_dragEvent;

    void resizeEvent(QResizeEvent *event);
    void mousePressEvent(QMouseEvent *event);
    void mouseReleaseEvent(QMouseEvent *event);
    void mouseMoveEvent(QMouseEvent *event);

private slots:
    void setZoomLevel(double zoomLevel);
    void setVisibleSceneRect(const QPolygonF &sceneRect);
};

#endif // ISOTOPEGUIDEVIEW_H
