/***************************************************************************
 *   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 EXPDOUBLESPINBOX_H
#define EXPDOUBLESPINBOX_H

#include <QDoubleSpinBox>
#include <QValidator>

//! DoubleSpinBox f&uuml;r Zehnerpotenzen
/**
Eine DoubleSpinBox, die mit Zehnerpotenzen umgehen kann

	@author Peter Dahlberg <pdahlberg@gmail.com>
*/
class ExpDoubleSpinBox : public QDoubleSpinBox {
	public:
		ExpDoubleSpinBox();

		~ExpDoubleSpinBox();

		virtual double valueFromText ( const QString& text ) const;
		virtual QString textFromValue ( double val ) const;
		virtual QValidator::State validate ( QString & input, int & pos ) const;
		virtual void stepBy ( int steps );


		void setNegativeExp (int exponent);
		const int getNegativeExp () const;
		void setPositiveExp (int exponent);
		const int getPositiveExp () const;
		void setDisplayDecimals ( int theValue );
		int getDisplayDecimals() const;
	


	protected:
		virtual QDoubleSpinBox::StepEnabled stepEnabled () const;
	private:
		///welche kommastelle soll noch ohne exponentialdarstellungen dargestellt werden
		int negativeExp;
		///ab welchem positiven exponenten soll exponentialdarstellung benutzt werden
		int positiveExp;
		///Wie viele Decimals sollen angezeigt werden (default: displayDecimals=decimals default)
		int displayDecimals;
};

#endif
