FourierComponent.h

Go to the documentation of this file.

/***************************************************************************
 *   Copyright (C) 2010 by Matthias Nagl   *
 *   mnagl@uni-goettingen.de   *
 *                                                                         *
 *   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 FOURIERCOMPONENT_H
#define FOURIERCOMPONENT_H

#include <complex>
#include <QPointer>
#include <QVector>

#if defined(FOURIERCOMPONENT_LIBRARY)
#  define FOURIERCOMPONENT_EXPORT Q_DECL_EXPORT
#else
#  define FOURIERCOMPONENT_EXPORT Q_DECL_IMPORT
#endif

class QDomElement;
class FourierWindowInterface;
class QwtPlotCurve;
namespace Ui {
  class FourierComponentToolWidget;
  class FourierComponentPlotWidget;
}

class FOURIERCOMPONENT_EXPORT FourierComponent : public QObject
{
    Q_OBJECT
  public:

    FourierComponent(QObject *parent = 0);
    ~FourierComponent();

    QWidget * toolWidget(QWidget *parent = 0);
    QWidget * plotWidget(QWidget *parent = 0);
    void setExportHeader(const QString &header);
    void appendToDomNode(QDomElement &node) const;
    void initializeFromDomNode(const QDomElement &node);

  public slots:
    void setRawData(const QString &name, const QVector<qreal> &rawX, const QVector<qreal> &raw, int scale);

  private slots:
    void showRawData();
    void showFourierSpectrum();
    void computeFourierSpectrum();
    void updateFourierPlot();
    void updateXAxisScale();
    void disableLogScaling(bool checked);
    void enableLogScaling(bool checked);
    void selectWindowFunctionStackItem(int index);
    void saveFourierSpectrum();

  private:
    static QString toXmlText(double value);
    static QString toXmlText(int value);
    QPointer<QWidget> toolwidget;
    Ui::FourierComponentToolWidget *tool;
    Ui::FourierComponentPlotWidget *plot;
    QVector<qreal> rawX; 
    QVector<qreal> raw;
    QVector<qreal> fourierX; 
    qreal fourierXmax;
    QVector< std::complex<double> > fourier;
    QwtPlotCurve *fomegaspectrum, *rawwin;
    QPointer<QWidget> plotwidget;
    QList<FourierWindowInterface*> fourierwindows;
    QString exportheader;
    QString name;
    int scale;
};

#endif