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/* -*- c++ -*- */
/*
* Copyright 2008-2012 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* SPDX-License-Identifier: GPL-3.0-or-later
*
*/
#ifndef PLOT_WATERFALL_H
#define PLOT_WATERFALL_H
#include <gnuradio/qtgui/waterfallGlobalData.h>
#include <qglobal.h>
#include <qwt_plot_rasteritem.h>
#if QWT_VERSION >= 0x060000
#include <qsize.h>
#include <qwt_interval.h>
typedef QwtInterval QwtDoubleInterval;
#endif
class QwtColorMap;
/*!
* \brief A plot item, which displays a waterfall spectrogram
* \ingroup qtgui_blk
*
* \details
* A waterfall displays three-dimensional data, where the 3rd dimension
* (the intensity) is displayed using colors. The colors are calculated
* from the values using a color map.
*
* \sa QwtRasterData, QwtColorMap
*/
class PlotWaterfall : public QwtPlotRasterItem
{
public:
explicit PlotWaterfall(WaterfallData* data, const QString& title = QString());
~PlotWaterfall() override;
const WaterfallData* data() const;
void setColorMap(const QwtColorMap&);
const QwtColorMap& colorMap() const;
#if QWT_VERSION < 0x060000
virtual QwtDoubleRect boundingRect() const;
virtual QSize rasterHint(const QwtDoubleRect&) const;
#endif
int rtti() const override;
protected:
#if QWT_VERSION < 0x060000
QImage renderImage(const QwtScaleMap& xMap,
const QwtScaleMap& yMap,
const QwtDoubleRect& rect) const;
#else
QImage renderImage(const QwtScaleMap& xMap,
const QwtScaleMap& yMap,
const QRectF& rect,
const QSize& size = QSize(0, 0)) const override;
#endif
private:
class PrivateData;
PrivateData* d_data;
};
#endif
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