/***************************************************************************
 *   Copyright (C) 2008 by Peter Dahlberg   *
 *   pdahlberg@gmail.com   *
 *                                                                         *
 *   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.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
#ifndef GRAPHICSELLIPSEITEM_H
#define GRAPHICSELLIPSEITEM_H

#include <QGraphicsEllipseItem>
class ProbeChargeWidget;

/**
	@author Peter Dahlberg <pdahlberg@gmail.com>
*/
class GraphicsEllipseItem : public QObject , public QGraphicsEllipseItem {
	public:
		GraphicsEllipseItem();
		QWidget* getDockWidget() const;

		~GraphicsEllipseItem();
		QList<QPointF> * getCurrProbePath();
		



	protected:
		void mousePressEvent ( QGraphicsSceneMouseEvent *event );
		void timerEvent ( QTimerEvent * event );

	private:
		QList<QPointF> *currProbePath;
		///Liste Der Geschwindigkeitsanteile in x-richtung
		QList<double> *speedListX;
		///Liste Der Geschwindigkeitsanteile in y-richtung
		QList<double> *speedListY;
		///Masse der Probeladung in kg
		double masse;
		///Ladung der Probleadung in As
		double charge;
		///Zugeordnetes Probe Charge Widget
		ProbeChargeWidget* myProbeChargeWidget;


	public slots:
		//! Berechnet die Bewegung der Probeladung
		/*!
			\param steps Anzahl der auszuf&uuml;renden Schriite
		*/
		void calculateProbePath (QPointF startPoint = QPointF(0,0) , double startSpeedX = 0, double startSpeedY = 0);

		void setMasse ( const double& theValue );
	
		//! Gibt die Masse zur&uuml;ck
		/*!
			\param speed alles != 0 relativistisch
		*/
		double getMasse(double speed);

		void setCharge ( const long double& theValue );
	

		long double getCharge() const;
	
	
};

#endif