scopevisxy.h

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// Copyright (C) 2018 F4EXB                                                      //
// written by Edouard Griffiths                                                  //
//                                                                               //
// 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 as version 3 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 V3 for more details.                               //
//                                                                               //
// You should have received a copy of the GNU General Public License             //
// along with this program. If not, see <http://www.gnu.org/licenses/>.          //

#ifndef SDRGUI_DSP_SCOPEVISXY_H_
#define SDRGUI_DSP_SCOPEVISXY_H_

#include "dsp/basebandsamplesink.h"
#include "export.h"
#include "util/message.h"

#include <QColor>
#include <vector>
#include <complex>

class TVScreen;

class SDRGUI_API ScopeVisXY : public BasebandSampleSink {
public:
    ScopeVisXY(TVScreen *tvScreen);
    virtual ~ScopeVisXY();

    virtual void feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool positiveOnly);
    virtual void start();
    virtual void stop();
    virtual bool handleMessage(const Message& message);

    void setScale(float scale) { m_scale = scale; }
    void setStroke(int stroke) { m_alphaTrace = stroke; }
    void setDecay(int decay) { m_alphaReset = 255 - decay; }

    void setPixelsPerFrame(int pixelsPerFrame);
    void setPlotRGB(const QRgb& plotRGB) { m_plotRGB = plotRGB; }
    void setGridRGB(const QRgb& gridRGB) { m_gridRGB = gridRGB; }

    void addGraticulePoint(const std::complex<float>& z);
    void calculateGraticule(int rows, int cols);
    void clearGraticule();

private:
    void drawGraticule();

    TVScreen *m_tvScreen;
    float m_scale;
    int m_cols;
    int m_rows;
    int m_pixelsPerFrame;
    int m_pixelCount;
    int m_alphaTrace;  
    int m_alphaReset;  
    QRgb m_plotRGB;
    QRgb m_gridRGB;
    std::vector<std::complex<float> > m_graticule;
    std::vector<int> m_graticuleRows;
    std::vector<int> m_graticuleCols;
};


#endif /* SDRGUI_DSP_SCOPEVISXY_H_ */