GNU Radio Manual and C++ API Reference  3.8.5.0
The Free & Open Software Radio Ecosystem
plot_waterfall.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2008-2012 Free Software Foundation, Inc.
4  *
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22 
23 #ifndef PLOT_WATERFALL_H
24 #define PLOT_WATERFALL_H
25 
27 #include <qglobal.h>
28 #include <qwt_plot_rasteritem.h>
29 
30 #if QWT_VERSION >= 0x060000
31 #include <qsize.h>
32 #include <qwt_interval.h>
33 
34 typedef QwtInterval QwtDoubleInterval;
35 #endif
36 
37 class QwtColorMap;
38 
39 /*!
40  * \brief A plot item, which displays a waterfall spectrogram
41  * \ingroup qtgui_blk
42  *
43  * \details
44  * A waterfall displays three-dimensional data, where the 3rd dimension
45  * (the intensity) is displayed using colors. The colors are calculated
46  * from the values using a color map.
47  *
48  * \sa QwtRasterData, QwtColorMap
49  */
50 class PlotWaterfall : public QwtPlotRasterItem
51 {
52 public:
53  explicit PlotWaterfall(WaterfallData* data, const QString& title = QString::null);
54  virtual ~PlotWaterfall();
55 
56  const WaterfallData* data() const;
57 
58  void setColorMap(const QwtColorMap&);
59 
60  const QwtColorMap& colorMap() const;
61 
62 #if QWT_VERSION < 0x060000
63  virtual QwtDoubleRect boundingRect() const;
64  virtual QSize rasterHint(const QwtDoubleRect&) const;
65 #endif
66 
67  virtual int rtti() const;
68 
69 protected:
70 #if QWT_VERSION < 0x060000
71  QImage renderImage(const QwtScaleMap& xMap,
72  const QwtScaleMap& yMap,
73  const QwtDoubleRect& rect) const;
74 #else
75  QImage renderImage(const QwtScaleMap& xMap,
76  const QwtScaleMap& yMap,
77  const QRectF& rect,
78  const QSize& size = QSize(0, 0)) const;
79 #endif
80 
81 private:
82  class PrivateData;
83  PrivateData* d_data;
84 };
85 
86 #endif
QImage renderImage(const QwtScaleMap &xMap, const QwtScaleMap &yMap, const QwtDoubleRect &rect) const
const WaterfallData * data() const
virtual ~PlotWaterfall()
Definition: waterfallGlobalData.h:35
virtual int rtti() const
void setColorMap(const QwtColorMap &)
virtual QSize rasterHint(const QwtDoubleRect &) const
const QwtColorMap & colorMap() const
A plot item, which displays a waterfall spectrogram.
Definition: plot_waterfall.h:50
PlotWaterfall(WaterfallData *data, const QString &title=QString::null)
virtual QwtDoubleRect boundingRect() const