/*

 Copyright 2006 Johnathan Corgan.

 This program is free software; you can redistribute it and/or modify

 it under the terms of the GNU General Public License version 2

 as published by the Free Software Foundation.

 This software 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 GNU Radio; see the file COPYING.  If not, write to

 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,

 Boston, MA 02111-1307, USA.

*/

#ifndef __HISTOGRAM_H__

#define __HISTOGRAM_H__

// Application level includes

#include "sample.h"

// wxWidgets includes

#include <wx/panel.h>

// System level includes

#include <vector>

class ErrorHistogram

{

public:

    ErrorHistogram();

    void Reset();

    void Calc(const std::vector<Sample> &samples, const Spherical &location);

    void Add(float angle, float magnitude, float ierror, float qerror); // analytic errors are -pi to pi

    void Normalize();

    int   Count()                    const { return m_count; }    

    int   Mode()                     const { return m_mode; }

    float ModalFrequency()           const { return m_modal_frequency; }

    float Mean()                     const { return m_mean; }

    float Concentration()            const { return m_conc; }

    const std::vector<float> &Data() const { return m_bins; }

private:

    int   m_mode;

    float m_modal_frequency;

    float m_isum;

    float m_qsum;

    float m_msum;

    float m_conc;

    float m_mean;

    int   m_count;

    std::vector<float> m_bins;

};

class HistogramPanel : public wxPanel

{

public:

    enum Mode { Rectangular, Polar };

    HistogramPanel(wxWindow *parent);

    void SetData(const ErrorHistogram &histogram);

    void SetMode(Mode mode) { m_mode = mode; Refresh(); }

    // Event handlers

    void OnPaint(wxPaintEvent &event);

    void OnSize(wxSizeEvent &event);

private:

    void draw_panel(wxDC &dc);

    ErrorHistogram m_histogram;

    // State

    Mode m_mode;

    // Window size derived parameters

    wxPoint m_center;

    int m_width;

    int m_height;

    int m_extent;

    DECLARE_EVENT_TABLE();

};

#endif