modernization: `override` instead of virtual in all compilation units

author: Marcus Müller <mmueller@gnuradio.org> 2020-10-30 18:22:33 +0100
committer: mormj <34754695+mormj@users.noreply.github.com> 2020-11-03 14:07:23 -0500
commit: 0ddc7dbc95ca6fb4c4a62a3c027104d6dd71fc3b (patch)
tree: b454053fdc123711f3011b8a703de38e1d783ba3 /gr-qtgui
parent: 1cfd6287635e339b313e1826fdfda23f474c91c8 (diff)
59 files changed, 805 insertions, 803 deletions
diff --git a/gr-qtgui/examples/c++/display_qt.h b/gr-qtgui/examples/c++/display_qt.h
index 9f140e7db5..696a4cb495 100644
--- a/gr-qtgui/examples/c++/display_qt.h
+++ b/gr-qtgui/examples/c++/display_qt.h
@@ -58,7 +58,7 @@ public slots:
 
 public:
     mywindow();
-    virtual ~mywindow();
+    ~mywindow() override;
 
     // call start() on the topblock
     void start();
diff --git a/gr-qtgui/include/gnuradio/qtgui/ConstellationDisplayPlot.h b/gr-qtgui/include/gnuradio/qtgui/ConstellationDisplayPlot.h
index 2e54a8194e..4a04f5eb94 100644
--- a/gr-qtgui/include/gnuradio/qtgui/ConstellationDisplayPlot.h
+++ b/gr-qtgui/include/gnuradio/qtgui/ConstellationDisplayPlot.h
@@ -26,7 +26,7 @@ class ConstellationDisplayPlot : public DisplayPlot
 
 public:
     ConstellationDisplayPlot(int nplots, QWidget*);
-    virtual ~ConstellationDisplayPlot();
+    ~ConstellationDisplayPlot() override;
 
     void plotNewData(const std::vector<double*> realDataPoints,
                      const std::vector<double*> imagDataPoints,
@@ -39,7 +39,7 @@ public:
                      const int64_t numDataPoints,
                      const double timeInterval);
 
-    void replot();
+    void replot() override;
 
     void set_xaxis(double min, double max);
     void set_yaxis(double min, double max);
diff --git a/gr-qtgui/include/gnuradio/qtgui/DisplayPlot.h b/gr-qtgui/include/gnuradio/qtgui/DisplayPlot.h
index 9e2fabf501..da14dd31eb 100644
--- a/gr-qtgui/include/gnuradio/qtgui/DisplayPlot.h
+++ b/gr-qtgui/include/gnuradio/qtgui/DisplayPlot.h
@@ -114,9 +114,9 @@ class DisplayPlot : public QwtPlot
 
 public:
     DisplayPlot(int nplots, QWidget*);
-    virtual ~DisplayPlot();
+    ~DisplayPlot() override;
 
-    virtual void replot() = 0;
+    void replot() override = 0;
 
     const QColor getLineColor1() const;
     const QColor getLineColor2() const;
diff --git a/gr-qtgui/include/gnuradio/qtgui/EyeDisplayPlot.h b/gr-qtgui/include/gnuradio/qtgui/EyeDisplayPlot.h
index ef11fc3f4f..db239aaeb8 100644
--- a/gr-qtgui/include/gnuradio/qtgui/EyeDisplayPlot.h
+++ b/gr-qtgui/include/gnuradio/qtgui/EyeDisplayPlot.h
@@ -32,7 +32,7 @@ class EyeDisplayPlot : public DisplayPlot
 
 public:
     EyeDisplayPlot(unsigned int nplots, unsigned int curve_index, QWidget* parent);
-    virtual ~EyeDisplayPlot();
+    ~EyeDisplayPlot() override;
 
     void plotNewData(const std::vector<double*> dataPoints,
                      const int64_t numDataPoints,
@@ -41,7 +41,7 @@ public:
                      const std::vector<std::vector<gr::tag_t>>& tags =
                          std::vector<std::vector<gr::tag_t>>());
 
-    void replot();
+    void replot() override;
 
     void stemPlot(bool en);
 
@@ -50,11 +50,11 @@ public:
     const QColor getTagTextColor();
     const QColor getTagBackgroundColor();
     const Qt::BrushStyle getTagBackgroundStyle();
-    void setLineColor(unsigned int which, QColor color);
-    void setLineWidth(unsigned int which, int width);
-    void setLineMarker(unsigned int which, QwtSymbol::Style marker);
-    void setLineStyle(unsigned int which, Qt::PenStyle style);
-    void setMarkerAlpha(unsigned int which, int alpha);
+    void setLineColor(unsigned int which, QColor color) override;
+    void setLineWidth(unsigned int which, int width) override;
+    void setLineMarker(unsigned int which, QwtSymbol::Style marker) override;
+    void setLineStyle(unsigned int which, Qt::PenStyle style) override;
+    void setMarkerAlpha(unsigned int which, int alpha) override;
 
 public slots:
     void setSampleRate(double sr, double units, const std::string& strunits);
@@ -62,8 +62,8 @@ public slots:
     void setAutoScale(bool state);
     void setAutoScaleShot();
 
-    void legendEntryChecked(QwtPlotItem* plotItem, bool on);
-    void legendEntryChecked(const QVariant& plotItem, bool on, int index);
+    void legendEntryChecked(QwtPlotItem* plotItem, bool on) override;
+    void legendEntryChecked(const QVariant& plotItem, bool on, int index) override;
 
     void enableTagMarker(unsigned int which, bool en);
 
@@ -76,7 +76,7 @@ public slots:
     void setTagBackgroundColor(QColor c);
     void setTagBackgroundStyle(Qt::BrushStyle b);
 
-    void setLineLabel(unsigned int which, QString label);
+    void setLineLabel(unsigned int which, QString label) override;
 
 private:
     void _resetXAxisPoints();
diff --git a/gr-qtgui/include/gnuradio/qtgui/FrequencyDisplayPlot.h b/gr-qtgui/include/gnuradio/qtgui/FrequencyDisplayPlot.h
index e62d8bfe5c..1d88cdee27 100644
--- a/gr-qtgui/include/gnuradio/qtgui/FrequencyDisplayPlot.h
+++ b/gr-qtgui/include/gnuradio/qtgui/FrequencyDisplayPlot.h
@@ -48,7 +48,7 @@ class FrequencyDisplayPlot : public DisplayPlot
 
 public:
     FrequencyDisplayPlot(int nplots, QWidget*);
-    virtual ~FrequencyDisplayPlot();
+    ~FrequencyDisplayPlot() override;
 
     void setFrequencyRange(const double,
                            const double,
@@ -72,9 +72,9 @@ public:
                      const double peakAmplitude,
                      const double timeInterval);
 
-    void replot();
+    void replot() override;
 
-    void setYaxis(double min, double max);
+    void setYaxis(double min, double max) override;
     double getYMin() const;
     double getYMax() const;
 
diff --git a/gr-qtgui/include/gnuradio/qtgui/HistogramDisplayPlot.h b/gr-qtgui/include/gnuradio/qtgui/HistogramDisplayPlot.h
index f7ed687269..624c8fa52d 100644
--- a/gr-qtgui/include/gnuradio/qtgui/HistogramDisplayPlot.h
+++ b/gr-qtgui/include/gnuradio/qtgui/HistogramDisplayPlot.h
@@ -26,13 +26,13 @@ class HistogramDisplayPlot : public DisplayPlot
 
 public:
     HistogramDisplayPlot(unsigned int nplots, QWidget*);
-    virtual ~HistogramDisplayPlot();
+    ~HistogramDisplayPlot() override;
 
     void plotNewData(const std::vector<double*> dataPoints,
                      const uint64_t numDataPoints,
                      const double timeInterval);
 
-    void replot();
+    void replot() override;
 
 public slots:
     void setAutoScale(bool state);
@@ -42,12 +42,12 @@ public slots:
     void setAccumulate(bool en);
     bool getAccumulate() const;
 
-    void setMarkerAlpha(unsigned int which, int alpha);
-    int getMarkerAlpha(unsigned int which) const;
-    void setLineColor(unsigned int which, QColor color);
+    void setMarkerAlpha(unsigned int which, int alpha) override;
+    int getMarkerAlpha(unsigned int which) const override;
+    void setLineColor(unsigned int which, QColor color) override;
 
     void setNumBins(unsigned int bins);
-    void setXaxis(double min, double max);
+    void setXaxis(double min, double max) override;
 
     void clear();
 
diff --git a/gr-qtgui/include/gnuradio/qtgui/TimeDomainDisplayPlot.h b/gr-qtgui/include/gnuradio/qtgui/TimeDomainDisplayPlot.h
index 3dce1a9ac5..fb9bafb684 100644
--- a/gr-qtgui/include/gnuradio/qtgui/TimeDomainDisplayPlot.h
+++ b/gr-qtgui/include/gnuradio/qtgui/TimeDomainDisplayPlot.h
@@ -33,7 +33,7 @@ class TimeDomainDisplayPlot : public DisplayPlot
 
 public:
     TimeDomainDisplayPlot(int nplots, QWidget*);
-    virtual ~TimeDomainDisplayPlot();
+    ~TimeDomainDisplayPlot() override;
 
     void plotNewData(const std::vector<double*> dataPoints,
                      const int64_t numDataPoints,
@@ -41,7 +41,7 @@ public:
                      const std::vector<std::vector<gr::tag_t>>& tags =
                          std::vector<std::vector<gr::tag_t>>());
 
-    void replot();
+    void replot() override;
 
     void stemPlot(bool en);
 
@@ -59,8 +59,8 @@ public slots:
     void setSemilogx(bool en);
     void setSemilogy(bool en);
 
-    void legendEntryChecked(QwtPlotItem* plotItem, bool on);
-    void legendEntryChecked(const QVariant& plotItem, bool on, int index);
+    void legendEntryChecked(QwtPlotItem* plotItem, bool on) override;
+    void legendEntryChecked(const QVariant& plotItem, bool on, int index) override;
 
     void enableTagMarker(unsigned int which, bool en);
 
diff --git a/gr-qtgui/include/gnuradio/qtgui/TimeRasterDisplayPlot.h b/gr-qtgui/include/gnuradio/qtgui/TimeRasterDisplayPlot.h
index 01a601c5f3..d855a74b1b 100644
--- a/gr-qtgui/include/gnuradio/qtgui/TimeRasterDisplayPlot.h
+++ b/gr-qtgui/include/gnuradio/qtgui/TimeRasterDisplayPlot.h
@@ -42,7 +42,7 @@ class TimeRasterDisplayPlot : public DisplayPlot
 public:
     TimeRasterDisplayPlot(
         int nplots, double samp_rate, double rows, double cols, QWidget*);
-    virtual ~TimeRasterDisplayPlot();
+    ~TimeRasterDisplayPlot() override;
 
     void reset();
 
@@ -67,7 +67,7 @@ public:
 
     void setIntensityRange(const double minIntensity, const double maxIntensity);
 
-    void replot(void);
+    void replot(void) override;
 
     int getIntensityColorMapType(unsigned int) const;
     int getIntensityColorMapType1() const;
diff --git a/gr-qtgui/include/gnuradio/qtgui/VectorDisplayPlot.h b/gr-qtgui/include/gnuradio/qtgui/VectorDisplayPlot.h
index 43dbcec0de..ea3d152d53 100644
--- a/gr-qtgui/include/gnuradio/qtgui/VectorDisplayPlot.h
+++ b/gr-qtgui/include/gnuradio/qtgui/VectorDisplayPlot.h
@@ -43,7 +43,7 @@ class VectorDisplayPlot : public DisplayPlot
 
 public:
     VectorDisplayPlot(int nplots, QWidget*);
-    virtual ~VectorDisplayPlot();
+    ~VectorDisplayPlot() override;
 
     void setXAxisValues(const double start, const double step = 1.0);
 
@@ -55,9 +55,9 @@ public:
     void clearMaxData();
     void clearMinData();
 
-    void replot();
+    void replot() override;
 
-    void setYaxis(double min, double max);
+    void setYaxis(double min, double max) override;
     double getYMin() const;
     double getYMax() const;
 
diff --git a/gr-qtgui/include/gnuradio/qtgui/WaterfallDisplayPlot.h b/gr-qtgui/include/gnuradio/qtgui/WaterfallDisplayPlot.h
index 822eb13a76..14290c8f70 100644
--- a/gr-qtgui/include/gnuradio/qtgui/WaterfallDisplayPlot.h
+++ b/gr-qtgui/include/gnuradio/qtgui/WaterfallDisplayPlot.h
@@ -45,7 +45,7 @@ class WaterfallDisplayPlot : public DisplayPlot
 
 public:
     WaterfallDisplayPlot(int nplots, QWidget*);
-    virtual ~WaterfallDisplayPlot();
+    ~WaterfallDisplayPlot() override;
 
     void resetAxis();
 
@@ -73,7 +73,7 @@ public:
     double getMinIntensity(unsigned int which) const;
     double getMaxIntensity(unsigned int which) const;
 
-    void replot(void);
+    void replot(void) override;
     void clearData();
 
     int getIntensityColorMapType(unsigned int) const;
@@ -95,7 +95,7 @@ public slots:
     void setUserDefinedLowIntensityColor(QColor);
     void setUserDefinedHighIntensityColor(QColor);
     void setPlotPosHalf(bool half);
-    void disableLegend();
+    void disableLegend() override;
     void enableLegend();
     void enableLegend(bool en);
     void setNumRows(int nrows);
diff --git a/gr-qtgui/include/gnuradio/qtgui/constellationdisplayform.h b/gr-qtgui/include/gnuradio/qtgui/constellationdisplayform.h
index 9cd9332c6f..de3f431466 100644
--- a/gr-qtgui/include/gnuradio/qtgui/constellationdisplayform.h
+++ b/gr-qtgui/include/gnuradio/qtgui/constellationdisplayform.h
@@ -29,9 +29,9 @@ class QTGUI_API ConstellationDisplayForm : public DisplayForm
 
 public:
     ConstellationDisplayForm(int nplots = 1, QWidget* parent = 0);
-    ~ConstellationDisplayForm();
+    ~ConstellationDisplayForm() override;
 
-    ConstellationDisplayPlot* getPlot();
+    ConstellationDisplayPlot* getPlot() override;
 
     int getNPoints() const;
     gr::qtgui::trigger_mode getTriggerMode() const;
@@ -41,13 +41,13 @@ public:
     std::string getTriggerTagKey() const;
 
 public slots:
-    void customEvent(QEvent* e);
+    void customEvent(QEvent* e) override;
     void setNPoints(const int);
 
-    void setSampleRate(const QString& samprate);
+    void setSampleRate(const QString& samprate) override;
     void setYaxis(double min, double max);
     void setXaxis(double min, double max);
-    void autoScale(bool en);
+    void autoScale(bool en) override;
 
     void updateTrigger(gr::qtgui::trigger_mode mode);
     void setTriggerMode(gr::qtgui::trigger_mode mode);
@@ -59,7 +59,7 @@ public slots:
     void setTriggerTagKey(const std::string& s);
 
 private slots:
-    void newData(const QEvent*);
+    void newData(const QEvent*) override;
 
 private:
     QIntValidator* d_int_validator;
diff --git a/gr-qtgui/include/gnuradio/qtgui/displayform.h b/gr-qtgui/include/gnuradio/qtgui/displayform.h
index 47492b4871..31671e1cae 100644
--- a/gr-qtgui/include/gnuradio/qtgui/displayform.h
+++ b/gr-qtgui/include/gnuradio/qtgui/displayform.h
@@ -32,7 +32,7 @@ class QTGUI_API DisplayForm : public QWidget
 
 public:
     DisplayForm(int nplots = 1, QWidget* parent = 0);
-    ~DisplayForm();
+    ~DisplayForm() override;
 
     virtual DisplayPlot* getPlot() = 0;
     void Reset();
@@ -41,11 +41,11 @@ public:
     void enableMenu(bool en = true);
 
 public slots:
-    void resizeEvent(QResizeEvent* e);
-    void mousePressEvent(QMouseEvent* e);
-    virtual void customEvent(QEvent* e) = 0;
+    void resizeEvent(QResizeEvent* e) override;
+    void mousePressEvent(QMouseEvent* e) override;
+    void customEvent(QEvent* e) override = 0;
 
-    void closeEvent(QCloseEvent* e);
+    void closeEvent(QCloseEvent* e) override;
 
     void setUpdateTime(double t);
 
diff --git a/gr-qtgui/include/gnuradio/qtgui/eyecontrolpanel.h b/gr-qtgui/include/gnuradio/qtgui/eyecontrolpanel.h
index 810efdc3de..8bc4f841ac 100644
--- a/gr-qtgui/include/gnuradio/qtgui/eyecontrolpanel.h
+++ b/gr-qtgui/include/gnuradio/qtgui/eyecontrolpanel.h
@@ -27,7 +27,7 @@ class EyeControlPanel : public QVBoxLayout
 
 public:
     EyeControlPanel(EyeDisplayForm* form);
-    ~EyeControlPanel();
+    ~EyeControlPanel() override;
 
 public slots:
     void toggleAutoScale(bool en);
diff --git a/gr-qtgui/include/gnuradio/qtgui/eyedisplayform.h b/gr-qtgui/include/gnuradio/qtgui/eyedisplayform.h
index d4987d264e..77a5ed208e 100644
--- a/gr-qtgui/include/gnuradio/qtgui/eyedisplayform.h
+++ b/gr-qtgui/include/gnuradio/qtgui/eyedisplayform.h
@@ -28,7 +28,7 @@ class EyeDisplayForm : public EyeDisplaysForm
 
 public:
     EyeDisplayForm(int nplots = 1, bool cmplx = false, QWidget* parent = 0);
-    ~EyeDisplayForm();
+    ~EyeDisplayForm() override;
 
     EyeDisplayPlot* getPlot();
     EyeDisplayPlot* getSinglePlot(unsigned int);
@@ -45,14 +45,14 @@ public:
     void setAxisLabels(bool en);
 
 public slots:
-    void customEvent(QEvent* e);
+    void customEvent(QEvent* e) override;
 
     void setSampleRate(const double samprate);
-    void setSampleRate(const QString& samprate);
+    void setSampleRate(const QString& samprate) override;
     void setYaxis(double min, double max);
     void setYLabel(const std::string& label, const std::string& unit = "");
     void setNPoints(const int);
-    void autoScale(bool en);
+    void autoScale(bool en) override;
     void autoScaleShot();
     void tagMenuSlot(bool en);
     void setTagMenu(unsigned int which, bool en);
@@ -73,7 +73,7 @@ public slots:
     void teardownControlPanel();
 
 private slots:
-    void newData(const QEvent*);
+    void newData(const QEvent*) override;
     void notifyYAxisPlus();
     void notifyYAxisMinus();
     void notifyYRangePlus();
diff --git a/gr-qtgui/include/gnuradio/qtgui/eyedisplaysform.h b/gr-qtgui/include/gnuradio/qtgui/eyedisplaysform.h
index 0e9fcf2fb8..a75db83089 100644
--- a/gr-qtgui/include/gnuradio/qtgui/eyedisplaysform.h
+++ b/gr-qtgui/include/gnuradio/qtgui/eyedisplaysform.h
@@ -31,7 +31,7 @@ class QTGUI_API EyeDisplaysForm : public QWidget
 
 public:
     EyeDisplaysForm(int nplots = 1, QWidget* parent = 0);
-    ~EyeDisplaysForm();
+    ~EyeDisplaysForm() override;
 
     void Reset();
     bool isClosed() const;
@@ -39,11 +39,11 @@ public:
     void enableMenu(bool en = true);
 
 public slots:
-    void resizeEvent(QResizeEvent* e);
-    void mousePressEvent(QMouseEvent* e);
-    virtual void customEvent(QEvent* e) = 0;
+    void resizeEvent(QResizeEvent* e) override;
+    void mousePressEvent(QMouseEvent* e) override;
+    void customEvent(QEvent* e) override = 0;
 
-    void closeEvent(QCloseEvent* e);
+    void closeEvent(QCloseEvent* e) override;
 
     void setUpdateTime(double t);
     void setSamplesPerSymbol(int64_t sps);
diff --git a/gr-qtgui/include/gnuradio/qtgui/form_menus.h b/gr-qtgui/include/gnuradio/qtgui/form_menus.h
index 633c316e42..bc3be36c27 100644
--- a/gr-qtgui/include/gnuradio/qtgui/form_menus.h
+++ b/gr-qtgui/include/gnuradio/qtgui/form_menus.h
@@ -71,7 +71,7 @@ public:
         }
     }
 
-    ~LineColorMenu() {}
+    ~LineColorMenu() override {}
 
     int getNumActions() const { return d_act.size(); }
 
@@ -151,7 +151,7 @@ public:
         }
     }
 
-    ~LineWidthMenu() {}
+    ~LineWidthMenu() override {}
 
     int getNumActions() const { return d_act.size(); }
 
@@ -221,7 +221,7 @@ public:
         }
     }
 
-    ~LineStyleMenu() {}
+    ~LineStyleMenu() override {}
 
     int getNumActions() const { return d_act.size(); }
 
@@ -305,7 +305,7 @@ public:
         }
     }
 
-    ~LineMarkerMenu() {}
+    ~LineMarkerMenu() override {}
 
     int getNumActions() const { return d_act.size(); }
 
@@ -378,7 +378,7 @@ public:
         }
     }
 
-    ~MarkerAlphaMenu() {}
+    ~MarkerAlphaMenu() override {}
 
     int getNumActions() const { return d_act.size(); }
 
@@ -437,7 +437,7 @@ public:
         connect(this, SIGNAL(triggered()), this, SLOT(getTextDiag()));
     }
 
-    ~LineTitleAction() {}
+    ~LineTitleAction() override {}
 
 signals:
     void whichTrigger(unsigned int which, const QString& text);
@@ -490,7 +490,7 @@ public:
         connect(this, SIGNAL(triggered()), this, SLOT(getTextDiag()));
     }
 
-    ~OtherAction() {}
+    ~OtherAction() override {}
 
     void setValidator(QValidator* v) { d_text->setValidator(v); }
 
@@ -553,7 +553,7 @@ public:
         connect(this, SIGNAL(triggered()), this, SLOT(getTextDiag()));
     }
 
-    ~OtherDualAction() {}
+    ~OtherDualAction() override {}
 
 signals:
     void whichTrigger(const QString& text0, const QString& text1);
@@ -634,7 +634,7 @@ public:
         }
     }
 
-    ~FFTSizeMenu() {}
+    ~FFTSizeMenu() override {}
 
     int getNumActions() const { return d_act.size(); }
 
@@ -742,7 +742,7 @@ public:
         }
     }
 
-    ~AverageMenu() {}
+    ~AverageMenu() override {}
 
     int getNumActions() const { return d_act.size(); }
 
@@ -808,7 +808,7 @@ public:
         // nop
     }
 
-    ~FFTAverageMenu() {}
+    ~FFTAverageMenu() override {}
 };
 
 /********************************************************************/
@@ -852,7 +852,7 @@ public:
         }
     }
 
-    ~FFTWindowMenu() {}
+    ~FFTWindowMenu() override {}
 
     int getNumActions() const { return d_act.size(); }
 
@@ -945,7 +945,7 @@ public:
         connect(this, SIGNAL(triggered()), this, SLOT(getTextDiag()));
     }
 
-    ~NPointsMenu() {}
+    ~NPointsMenu() override {}
 
 signals:
     void whichTrigger(const int npts);
@@ -1011,7 +1011,7 @@ public:
         d_min_value = QColor("white");
     }
 
-    ~ColorMapMenu() {}
+    ~ColorMapMenu() override {}
 
     int getNumActions() const { return d_act.size(); }
 
@@ -1109,7 +1109,7 @@ public:
         }
     }
 
-    ~TriggerModeMenu() {}
+    ~TriggerModeMenu() override {}
 
     int getNumActions() const { return d_act.size(); }
 
@@ -1182,7 +1182,7 @@ public:
         }
     }
 
-    ~TriggerSlopeMenu() {}
+    ~TriggerSlopeMenu() override {}
 
     int getNumActions() const { return d_act.size(); }
 
@@ -1243,7 +1243,7 @@ public:
         }
     }
 
-    ~TriggerChannelMenu() {}
+    ~TriggerChannelMenu() override {}
 
     int getNumActions() const { return d_act.size(); }
 
@@ -1302,7 +1302,7 @@ public:
         }
     }
 
-    ~NumberLayoutMenu() {}
+    ~NumberLayoutMenu() override {}
 
     int getNumActions() const { return d_act.size(); }
 
@@ -1384,7 +1384,7 @@ public:
         d_min_value = QColor("black");
     }
 
-    ~NumberColorMapMenu() {}
+    ~NumberColorMapMenu() override {}
 
     int getNumActions() const { return d_act.size(); }
 
@@ -1457,7 +1457,7 @@ public:
         connect(this, SIGNAL(triggered()), this, SLOT(getTextDiag()));
     }
 
-    ~PopupMenu() {}
+    ~PopupMenu() override {}
 
     void setText(QString s) { d_text->setText(s); }
 
@@ -1511,7 +1511,7 @@ public:
         connect(this, SIGNAL(triggered()), this, SLOT(getTextDiag()));
     }
 
-    ~ItemFloatAct() {}
+    ~ItemFloatAct() override {}
 
     void setText(float f) { d_text->setText(QString("%1").arg(f)); }
 
diff --git a/gr-qtgui/include/gnuradio/qtgui/freqcontrolpanel.h b/gr-qtgui/include/gnuradio/qtgui/freqcontrolpanel.h
index e509734a01..ff03fbc3e9 100644
--- a/gr-qtgui/include/gnuradio/qtgui/freqcontrolpanel.h
+++ b/gr-qtgui/include/gnuradio/qtgui/freqcontrolpanel.h
@@ -29,7 +29,7 @@ class FreqControlPanel : public QVBoxLayout
 
 public:
     FreqControlPanel(FreqDisplayForm* form);
-    ~FreqControlPanel();
+    ~FreqControlPanel() override;
 
 public slots:
     void notifyAvgSlider(int val);
diff --git a/gr-qtgui/include/gnuradio/qtgui/freqdisplayform.h b/gr-qtgui/include/gnuradio/qtgui/freqdisplayform.h
index 673749e627..35763be156 100644
--- a/gr-qtgui/include/gnuradio/qtgui/freqdisplayform.h
+++ b/gr-qtgui/include/gnuradio/qtgui/freqdisplayform.h
@@ -31,9 +31,9 @@ class FreqDisplayForm : public DisplayForm
 
 public:
     FreqDisplayForm(int nplots = 1, QWidget* parent = 0);
-    ~FreqDisplayForm();
+    ~FreqDisplayForm() override;
 
-    FrequencyDisplayPlot* getPlot();
+    FrequencyDisplayPlot* getPlot() override;
 
     int getFFTSize() const;
     float getFFTAverage() const;
@@ -53,9 +53,9 @@ public:
     bool checkClicked();
 
 public slots:
-    void customEvent(QEvent* e);
+    void customEvent(QEvent* e) override;
 
-    void setSampleRate(const QString& samprate);
+    void setSampleRate(const QString& samprate) override;
     void setFFTSize(const int);
     void setFFTAverage(const float);
     void setFFTWindowType(const gr::fft::window::win_type);
@@ -65,7 +65,7 @@ public slots:
     void setYLabel(const std::string& label, const std::string& unit = "");
     void setYMax(const QString& m);
     void setYMin(const QString& m);
-    void autoScale(bool en);
+    void autoScale(bool en) override;
     void autoScaleShot();
     void setPlotPosHalf(bool half);
     void clearMaxHold();
@@ -109,8 +109,8 @@ signals:
 
 
 private slots:
-    void newData(const QEvent* updateEvent);
-    void onPlotPointSelected(const QPointF p);
+    void newData(const QEvent* updateEvent) override;
+    void onPlotPointSelected(const QPointF p) override;
 
 private:
     uint64_t d_num_real_data_points;
diff --git a/gr-qtgui/include/gnuradio/qtgui/histogramdisplayform.h b/gr-qtgui/include/gnuradio/qtgui/histogramdisplayform.h
index 0bd8b95e4f..638dc9ba35 100644
--- a/gr-qtgui/include/gnuradio/qtgui/histogramdisplayform.h
+++ b/gr-qtgui/include/gnuradio/qtgui/histogramdisplayform.h
@@ -28,19 +28,19 @@ class HistogramDisplayForm : public DisplayForm
 
 public:
     HistogramDisplayForm(int nplots = 1, QWidget* parent = 0);
-    ~HistogramDisplayForm();
+    ~HistogramDisplayForm() override;
 
-    HistogramDisplayPlot* getPlot();
+    HistogramDisplayPlot* getPlot() override;
 
     int getNPoints() const;
 
 public slots:
-    void customEvent(QEvent* e);
+    void customEvent(QEvent* e) override;
 
     void setYaxis(double min, double max);
     void setXaxis(double min, double max);
     void setNPoints(const int);
-    void autoScale(bool en);
+    void autoScale(bool en) override;
     void setSemilogx(bool en);
     void setSemilogy(bool en);
 
@@ -50,7 +50,7 @@ public slots:
     void autoScaleX();
 
 private slots:
-    void newData(const QEvent*);
+    void newData(const QEvent*) override;
 
 private:
     QIntValidator* d_int_validator;
diff --git a/gr-qtgui/include/gnuradio/qtgui/numberdisplayform.h b/gr-qtgui/include/gnuradio/qtgui/numberdisplayform.h
index 423ecaade3..0411c967ad 100644
--- a/gr-qtgui/include/gnuradio/qtgui/numberdisplayform.h
+++ b/gr-qtgui/include/gnuradio/qtgui/numberdisplayform.h
@@ -29,7 +29,7 @@ public:
     NumberDisplayForm(int nplots = 1,
                       gr::qtgui::graph_t type = gr::qtgui::NUM_GRAPH_HORIZ,
                       QWidget* parent = 0);
-    ~NumberDisplayForm();
+    ~NumberDisplayForm() override;
 
     gr::qtgui::graph_t graphType() const;
     QColor colorMin(unsigned int which) const;
@@ -44,8 +44,8 @@ public:
     float factor(unsigned int which) const;
 
 public slots:
-    void mousePressEvent(QMouseEvent* e);
-    void customEvent(QEvent* e);
+    void mousePressEvent(QMouseEvent* e) override;
+    void customEvent(QEvent* e) override;
     void setStop(bool on);
     void setStop();
     void setGraphType(const gr::qtgui::graph_t type);
diff --git a/gr-qtgui/include/gnuradio/qtgui/plot_raster.h b/gr-qtgui/include/gnuradio/qtgui/plot_raster.h
index 429ea3d76e..b6710ade57 100644
--- a/gr-qtgui/include/gnuradio/qtgui/plot_raster.h
+++ b/gr-qtgui/include/gnuradio/qtgui/plot_raster.h
@@ -37,7 +37,7 @@ class PlotTimeRaster : public QwtPlotRasterItem
 {
 public:
     explicit PlotTimeRaster(const QString& title = QString());
-    virtual ~PlotTimeRaster();
+    ~PlotTimeRaster() override;
 
     const TimeRasterData* data() const;
 
@@ -52,10 +52,10 @@ public:
     virtual QSize rasterHint(const QwtDoubleRect&) const;
     virtual QwtDoubleInterval interval(Qt::Axis ax) const;
 #else
-    virtual QwtInterval interval(Qt::Axis ax) const;
+    QwtInterval interval(Qt::Axis ax) const override;
 #endif
 
-    virtual int rtti() const;
+    int rtti() const override;
 
 protected:
 #if QWT_VERSION < 0x060000
@@ -66,7 +66,7 @@ protected:
     QImage renderImage(const QwtScaleMap& xMap,
                        const QwtScaleMap& yMap,
                        const QRectF& rect,
-                       const QSize& size = QSize(0, 0)) const;
+                       const QSize& size = QSize(0, 0)) const override;
 #endif
 
 private:
diff --git a/gr-qtgui/include/gnuradio/qtgui/plot_waterfall.h b/gr-qtgui/include/gnuradio/qtgui/plot_waterfall.h
index 9a4cdd3f4d..51c08f87ea 100644
--- a/gr-qtgui/include/gnuradio/qtgui/plot_waterfall.h
+++ b/gr-qtgui/include/gnuradio/qtgui/plot_waterfall.h
@@ -37,7 +37,7 @@ class PlotWaterfall : public QwtPlotRasterItem
 {
 public:
     explicit PlotWaterfall(WaterfallData* data, const QString& title = QString());
-    virtual ~PlotWaterfall();
+    ~PlotWaterfall() override;
 
     const WaterfallData* data() const;
 
@@ -50,7 +50,7 @@ public:
     virtual QSize rasterHint(const QwtDoubleRect&) const;
 #endif
 
-    virtual int rtti() const;
+    int rtti() const override;
 
 protected:
 #if QWT_VERSION < 0x060000
@@ -61,7 +61,7 @@ protected:
     QImage renderImage(const QwtScaleMap& xMap,
                        const QwtScaleMap& yMap,
                        const QRectF& rect,
-                       const QSize& size = QSize(0, 0)) const;
+                       const QSize& size = QSize(0, 0)) const override;
 #endif
 
 private:
diff --git a/gr-qtgui/include/gnuradio/qtgui/qtgui_types.h b/gr-qtgui/include/gnuradio/qtgui/qtgui_types.h
index a0ed7339a3..e2735cf945 100644
--- a/gr-qtgui/include/gnuradio/qtgui/qtgui_types.h
+++ b/gr-qtgui/include/gnuradio/qtgui/qtgui_types.h
@@ -101,7 +101,7 @@ public:
     {
     }
 
-    virtual QwtText label(double value) const
+    QwtText label(double value) const override
     {
         return QString("%1").arg(value, 0, 'f', getFrequencyPrecision());
     }
diff --git a/gr-qtgui/include/gnuradio/qtgui/spectrumUpdateEvents.h b/gr-qtgui/include/gnuradio/qtgui/spectrumUpdateEvents.h
index 4c0d182ca8..1bc1097b44 100644
--- a/gr-qtgui/include/gnuradio/qtgui/spectrumUpdateEvents.h
+++ b/gr-qtgui/include/gnuradio/qtgui/spectrumUpdateEvents.h
@@ -40,7 +40,7 @@ public:
                         const gr::high_res_timer_type generatedTimestamp,
                         const int droppedFFTFrames);
 
-    ~SpectrumUpdateEvent();
+    ~SpectrumUpdateEvent() override;
 
     const float* getFFTPoints() const;
     const double* getRealTimeDomainPoints() const;
@@ -71,7 +71,7 @@ class SpectrumWindowCaptionEvent : public QEvent
 {
 public:
     SpectrumWindowCaptionEvent(const QString&);
-    ~SpectrumWindowCaptionEvent();
+    ~SpectrumWindowCaptionEvent() override;
     QString getLabel();
 
 protected:
@@ -83,7 +83,7 @@ class SpectrumWindowResetEvent : public QEvent
 {
 public:
     SpectrumWindowResetEvent();
-    ~SpectrumWindowResetEvent();
+    ~SpectrumWindowResetEvent() override;
 
 protected:
 private:
@@ -93,7 +93,7 @@ class SpectrumFrequencyRangeEvent : public QEvent
 {
 public:
     SpectrumFrequencyRangeEvent(const double, const double, const double);
-    ~SpectrumFrequencyRangeEvent();
+    ~SpectrumFrequencyRangeEvent() override;
     double GetCenterFrequency() const;
     double GetStartFrequency() const;
     double GetStopFrequency() const;
@@ -113,7 +113,7 @@ public:
                     const uint64_t numTimeDomainDataPoints,
                     const std::vector<std::vector<gr::tag_t>> tags);
 
-    ~TimeUpdateEvent();
+    ~TimeUpdateEvent() override;
 
     int which() const;
     const std::vector<double*> getTimeDomainPoints() const;
@@ -141,7 +141,7 @@ class FreqUpdateEvent : public QEvent
 public:
     FreqUpdateEvent(const std::vector<double*> dataPoints, const uint64_t numDataPoints);
 
-    ~FreqUpdateEvent();
+    ~FreqUpdateEvent() override;
 
     int which() const;
     const std::vector<double*> getPoints() const;
@@ -162,7 +162,7 @@ class SetFreqEvent : public QEvent
 {
 public:
     SetFreqEvent(const double, const double);
-    ~SetFreqEvent();
+    ~SetFreqEvent() override;
     double getCenterFrequency() const;
     double getBandwidth() const;
 
@@ -182,7 +182,7 @@ public:
                      const std::vector<double*> imagDataPoints,
                      const uint64_t numDataPoints);
 
-    ~ConstUpdateEvent();
+    ~ConstUpdateEvent() override;
 
     int which() const;
     const std::vector<double*> getRealPoints() const;
@@ -211,7 +211,7 @@ public:
                          const uint64_t numDataPoints,
                          const gr::high_res_timer_type dataTimestamp);
 
-    ~WaterfallUpdateEvent();
+    ~WaterfallUpdateEvent() override;
 
     int which() const;
     const std::vector<double*> getPoints() const;
@@ -240,7 +240,7 @@ class TimeRasterUpdateEvent : public QEvent
 public:
     TimeRasterUpdateEvent(const std::vector<double*> dataPoints,
                           const uint64_t numDataPoints);
-    ~TimeRasterUpdateEvent();
+    ~TimeRasterUpdateEvent() override;
 
     int which() const;
     const std::vector<double*> getPoints() const;
@@ -261,7 +261,7 @@ class TimeRasterSetSize : public QEvent
 {
 public:
     TimeRasterSetSize(const double nrows, const double ncols);
-    ~TimeRasterSetSize();
+    ~TimeRasterSetSize() override;
 
     double nRows() const;
     double nCols() const;
@@ -282,7 +282,7 @@ class HistogramUpdateEvent : public QEvent
 public:
     HistogramUpdateEvent(const std::vector<double*> points, const uint64_t npoints);
 
-    ~HistogramUpdateEvent();
+    ~HistogramUpdateEvent() override;
 
     int which() const;
     const std::vector<double*> getDataPoints() const;
@@ -303,7 +303,7 @@ class HistogramSetAccumulator : public QEvent
 {
 public:
     HistogramSetAccumulator(const bool en);
-    ~HistogramSetAccumulator();
+    ~HistogramSetAccumulator() override;
 
     bool getAccumulator() const;
 
@@ -318,7 +318,7 @@ class HistogramClearEvent : public QEvent
 public:
     HistogramClearEvent() : QEvent(QEvent::Type(SpectrumUpdateEventType + 2)) {}
 
-    ~HistogramClearEvent() {}
+    ~HistogramClearEvent() override {}
 
     static QEvent::Type Type() { return QEvent::Type(SpectrumUpdateEventType + 2); }
 };
@@ -331,7 +331,7 @@ class NumberUpdateEvent : public QEvent
 {
 public:
     NumberUpdateEvent(const std::vector<float> samples);
-    ~NumberUpdateEvent();
+    ~NumberUpdateEvent() override;
 
     int which() const;
     const std::vector<float> getSamples() const;
diff --git a/gr-qtgui/include/gnuradio/qtgui/spectrumdisplayform.h b/gr-qtgui/include/gnuradio/qtgui/spectrumdisplayform.h
index 06b3b45a8e..31724a16e8 100644
--- a/gr-qtgui/include/gnuradio/qtgui/spectrumdisplayform.h
+++ b/gr-qtgui/include/gnuradio/qtgui/spectrumdisplayform.h
@@ -31,7 +31,7 @@ class SpectrumDisplayForm : public QWidget, public Ui::SpectrumDisplayForm
 
 public:
     SpectrumDisplayForm(QWidget* parent = 0);
-    ~SpectrumDisplayForm();
+    ~SpectrumDisplayForm() override;
 
     void setSystem(SpectrumGUIClass* newSystem,
                    const uint64_t numFFTDataPoints,
@@ -51,8 +51,8 @@ public:
     bool checkClicked();
 
 public slots:
-    void resizeEvent(QResizeEvent* e);
-    void customEvent(QEvent* e);
+    void resizeEvent(QResizeEvent* e) override;
+    void customEvent(QEvent* e) override;
     void avgLineEdit_valueChanged(int valueString);
     void maxHoldCheckBox_toggled(bool newState);
     void minHoldCheckBox_toggled(bool newState);
@@ -63,7 +63,7 @@ public slots:
     void setFrequencyRange(const double newCenterFrequency,
                            const double newStartFrequency,
                            const double newStopFrequency);
-    void closeEvent(QCloseEvent* e);
+    void closeEvent(QCloseEvent* e) override;
     void windowTypeChanged(int newItem);
     void useRFFrequenciesCB(bool useRFFlag);
     void toggleRFFrequencies(bool en);
diff --git a/gr-qtgui/include/gnuradio/qtgui/timeRasterGlobalData.h b/gr-qtgui/include/gnuradio/qtgui/timeRasterGlobalData.h
index 0dd37cd0ba..6bd53f142c 100644
--- a/gr-qtgui/include/gnuradio/qtgui/timeRasterGlobalData.h
+++ b/gr-qtgui/include/gnuradio/qtgui/timeRasterGlobalData.h
@@ -23,7 +23,7 @@ class TimeRasterData : public QwtRasterData
 {
 public:
     TimeRasterData(const double rows, const double cols);
-    virtual ~TimeRasterData();
+    ~TimeRasterData() override;
 
     virtual void reset();
     virtual void copy(const TimeRasterData*);
@@ -37,7 +37,7 @@ public:
     virtual void setRange(const QwtDoubleInterval&);
 #endif
 
-    virtual double value(double x, double y) const;
+    double value(double x, double y) const override;
 
     virtual double getNumCols() const;
     virtual double getNumRows() const;
diff --git a/gr-qtgui/include/gnuradio/qtgui/timecontrolpanel.h b/gr-qtgui/include/gnuradio/qtgui/timecontrolpanel.h
index 2aa88d06fd..e9590b8b2f 100644
--- a/gr-qtgui/include/gnuradio/qtgui/timecontrolpanel.h
+++ b/gr-qtgui/include/gnuradio/qtgui/timecontrolpanel.h
@@ -28,7 +28,7 @@ class TimeControlPanel : public QVBoxLayout
 
 public:
     TimeControlPanel(TimeDisplayForm* form);
-    ~TimeControlPanel();
+    ~TimeControlPanel() override;
 
 public slots:
     void toggleAutoScale(bool en);
diff --git a/gr-qtgui/include/gnuradio/qtgui/timedisplayform.h b/gr-qtgui/include/gnuradio/qtgui/timedisplayform.h
index 5f9d2461ae..1901100f0c 100644
--- a/gr-qtgui/include/gnuradio/qtgui/timedisplayform.h
+++ b/gr-qtgui/include/gnuradio/qtgui/timedisplayform.h
@@ -29,9 +29,9 @@ class TimeDisplayForm : public DisplayForm
 
 public:
     TimeDisplayForm(int nplots = 1, QWidget* parent = 0);
-    ~TimeDisplayForm();
+    ~TimeDisplayForm() override;
 
-    TimeDomainDisplayPlot* getPlot();
+    TimeDomainDisplayPlot* getPlot() override;
 
     int getNPoints() const;
     gr::qtgui::trigger_mode getTriggerMode() const;
@@ -42,15 +42,15 @@ public:
     std::string getTriggerTagKey() const;
 
 public slots:
-    void customEvent(QEvent* e);
+    void customEvent(QEvent* e) override;
 
     void setSampleRate(const double samprate);
-    void setSampleRate(const QString& samprate);
+    void setSampleRate(const QString& samprate) override;
     void setYaxis(double min, double max);
     void setYLabel(const std::string& label, const std::string& unit = "");
     void setNPoints(const int);
     void setStem(bool en);
-    void autoScale(bool en);
+    void autoScale(bool en) override;
     void autoScaleShot();
     void setSemilogx(bool en);
     void setSemilogy(bool en);
@@ -73,7 +73,7 @@ public slots:
     void teardownControlPanel();
 
 private slots:
-    void newData(const QEvent*);
+    void newData(const QEvent*) override;
     void notifyYAxisPlus();
     void notifyYAxisMinus();
     void notifyYRangePlus();
diff --git a/gr-qtgui/include/gnuradio/qtgui/timerasterdisplayform.h b/gr-qtgui/include/gnuradio/qtgui/timerasterdisplayform.h
index 4732eff13a..497d81afaf 100644
--- a/gr-qtgui/include/gnuradio/qtgui/timerasterdisplayform.h
+++ b/gr-qtgui/include/gnuradio/qtgui/timerasterdisplayform.h
@@ -34,9 +34,9 @@ public:
                           double cols = 1,
                           double zmax = 1,
                           QWidget* parent = 0);
-    ~TimeRasterDisplayForm();
+    ~TimeRasterDisplayForm() override;
 
-    TimeRasterDisplayPlot* getPlot();
+    TimeRasterDisplayPlot* getPlot() override;
 
     double numRows();
     double numCols();
@@ -47,7 +47,7 @@ public:
     double getMaxIntensity(unsigned int which);
 
 public slots:
-    void customEvent(QEvent* e);
+    void customEvent(QEvent* e) override;
 
     void setNumRows(double rows);
     void setNumCols(double cols);
@@ -56,7 +56,7 @@ public slots:
     void setNumCols(QString cols);
 
     void setSampleRate(const double samprate);
-    void setSampleRate(const QString& rate);
+    void setSampleRate(const QString& rate) override;
 
     void setIntensityRange(const double minIntensity, const double maxIntensity);
     void setMaxIntensity(const QString& m);
@@ -69,10 +69,10 @@ public slots:
 
     void setAlpha(unsigned int which, unsigned int alpha);
 
-    void autoScale(bool en = false);
+    void autoScale(bool en = false) override;
 
 private slots:
-    void newData(const QEvent* updateEvent);
+    void newData(const QEvent* updateEvent) override;
 
 private:
     double d_min_val, d_cur_min_val;
diff --git a/gr-qtgui/include/gnuradio/qtgui/utils.h b/gr-qtgui/include/gnuradio/qtgui/utils.h
index e9adaf3013..4e5b2ca02d 100644
--- a/gr-qtgui/include/gnuradio/qtgui/utils.h
+++ b/gr-qtgui/include/gnuradio/qtgui/utils.h
@@ -35,7 +35,7 @@ public:
     QwtDblClickPlotPicker(QWidget*);
 #endif /* QWT_VERSION < 0x060100 */
 
-    ~QwtDblClickPlotPicker();
+    ~QwtDblClickPlotPicker() override;
 
     virtual QwtPickerMachine* stateMachine(int) const;
 };
@@ -44,14 +44,14 @@ class QTGUI_API QwtPickerDblClickPointMachine : public QwtPickerMachine
 {
 public:
     QwtPickerDblClickPointMachine();
-    ~QwtPickerDblClickPointMachine();
+    ~QwtPickerDblClickPointMachine() override;
 
 #if QWT_VERSION < 0x060000
     virtual CommandList
 #else
-    virtual QList<QwtPickerMachine::Command>
+    QList<QwtPickerMachine::Command>
 #endif
-    transition(const QwtEventPattern& eventPattern, const QEvent* e);
+    transition(const QwtEventPattern& eventPattern, const QEvent* e) override;
 };
 
 void check_set_qss(QApplication* app);
diff --git a/gr-qtgui/include/gnuradio/qtgui/vectordisplayform.h b/gr-qtgui/include/gnuradio/qtgui/vectordisplayform.h
index aaa2c1b3ff..a6bfceb042 100644
--- a/gr-qtgui/include/gnuradio/qtgui/vectordisplayform.h
+++ b/gr-qtgui/include/gnuradio/qtgui/vectordisplayform.h
@@ -28,9 +28,9 @@ class VectorDisplayForm : public DisplayForm
 
 public:
     VectorDisplayForm(int nplots = 1, QWidget* parent = 0);
-    ~VectorDisplayForm();
+    ~VectorDisplayForm() override;
 
-    VectorDisplayPlot* getPlot();
+    VectorDisplayPlot* getPlot() override;
 
     int getVecSize() const;
     float getVecAverage() const;
@@ -46,7 +46,7 @@ public:
     bool checkClicked();
 
 public slots:
-    void customEvent(QEvent* e);
+    void customEvent(QEvent* e) override;
 
     void setVecSize(const int);
     void setVecAverage(const float);
@@ -55,13 +55,13 @@ public slots:
     void setYaxis(double min, double max);
     void setYMax(const QString& m);
     void setYMin(const QString& m);
-    void autoScale(bool en);
+    void autoScale(bool en) override;
     void clearMaxHold();
     void clearMinHold();
 
 private slots:
-    void newData(const QEvent* updateEvent);
-    void onPlotPointSelected(const QPointF p);
+    void newData(const QEvent* updateEvent) override;
+    void onPlotPointSelected(const QPointF p) override;
 
 private:
     uint64_t d_num_real_data_points;
diff --git a/gr-qtgui/include/gnuradio/qtgui/waterfallGlobalData.h b/gr-qtgui/include/gnuradio/qtgui/waterfallGlobalData.h
index 1aff339a06..a244de7eb7 100644
--- a/gr-qtgui/include/gnuradio/qtgui/waterfallGlobalData.h
+++ b/gr-qtgui/include/gnuradio/qtgui/waterfallGlobalData.h
@@ -23,7 +23,7 @@ class WaterfallData : public QwtRasterData
 {
 public:
     WaterfallData(const double, const double, const uint64_t, const unsigned int);
-    virtual ~WaterfallData();
+    ~WaterfallData() override;
 
     virtual void reset();
     virtual void copy(const WaterfallData*);
@@ -38,7 +38,7 @@ public:
     virtual void setRange(const QwtDoubleInterval&);
 #endif
 
-    virtual double value(double x, double y) const;
+    double value(double x, double y) const override;
 
     virtual uint64_t getNumFFTPoints() const;
     virtual void addFFTData(const double*, const uint64_t, const int);
diff --git a/gr-qtgui/include/gnuradio/qtgui/waterfalldisplayform.h b/gr-qtgui/include/gnuradio/qtgui/waterfalldisplayform.h
index 7aea4a98a7..9f86ba79f5 100644
--- a/gr-qtgui/include/gnuradio/qtgui/waterfalldisplayform.h
+++ b/gr-qtgui/include/gnuradio/qtgui/waterfalldisplayform.h
@@ -29,9 +29,9 @@ class WaterfallDisplayForm : public DisplayForm
 
 public:
     WaterfallDisplayForm(int nplots = 1, QWidget* parent = 0);
-    ~WaterfallDisplayForm();
+    ~WaterfallDisplayForm() override;
 
-    WaterfallDisplayPlot* getPlot();
+    WaterfallDisplayPlot* getPlot() override;
 
     int getFFTSize() const;
     double getTimePerFFT();
@@ -52,9 +52,9 @@ public:
     bool checkClicked();
 
 public slots:
-    void customEvent(QEvent* e);
+    void customEvent(QEvent* e) override;
     void setTimeTitle(const std::string);
-    void setSampleRate(const QString& samprate);
+    void setSampleRate(const QString& samprate) override;
     void setFFTSize(const int);
     void setFFTAverage(const float);
     void setFFTWindowType(const gr::fft::window::win_type);
@@ -72,14 +72,14 @@ public slots:
                      const QColor lowColor = QColor("white"),
                      const QColor highColor = QColor("white"));
 
-    void autoScale(bool en = false);
+    void autoScale(bool en = false) override;
     void setPlotPosHalf(bool half);
     void setTimePerFFT(double t);
     void setUpdateTime(double t);
 
 private slots:
-    void newData(const QEvent* updateEvent);
-    void onPlotPointSelected(const QPointF p);
+    void newData(const QEvent* updateEvent) override;
+    void onPlotPointSelected(const QPointF p) override;
 
 private:
     QIntValidator* d_int_validator;
diff --git a/gr-qtgui/lib/ConstellationDisplayPlot.cc b/gr-qtgui/lib/ConstellationDisplayPlot.cc
index 960800ddfe..6187d02fe1 100644
--- a/gr-qtgui/lib/ConstellationDisplayPlot.cc
+++ b/gr-qtgui/lib/ConstellationDisplayPlot.cc
@@ -31,13 +31,13 @@ public:
         setTrackerMode(QwtPicker::AlwaysOn);
     }
 
-    virtual ~ConstellationDisplayZoomer() {}
+    ~ConstellationDisplayZoomer() override {}
 
     virtual void updateTrackerText() { updateDisplay(); }
 
 protected:
     using QwtPlotZoomer::trackerText;
-    virtual QwtText trackerText(const QPoint& p) const
+    QwtText trackerText(const QPoint& p) const override
     {
         QwtDoublePoint dp = QwtPlotZoomer::invTransform(p);
         QwtText t(QString("(%1, %2)").arg(dp.x(), 0, 'f', 4).arg(dp.y(), 0, 'f', 4));
diff --git a/gr-qtgui/lib/EyeDisplayPlot.cc b/gr-qtgui/lib/EyeDisplayPlot.cc
index 44260faa30..cd54e06600 100644
--- a/gr-qtgui/lib/EyeDisplayPlot.cc
+++ b/gr-qtgui/lib/EyeDisplayPlot.cc
@@ -50,7 +50,7 @@ public:
         setTrackerMode(QwtPicker::AlwaysOn);
     }
 
-    virtual ~EyeDisplayZoomer() {}
+    ~EyeDisplayZoomer() override {}
 
     virtual void updateTrackerText() { updateDisplay(); }
 
@@ -62,7 +62,7 @@ public:
 
 protected:
     using QwtPlotZoomer::trackerText;
-    virtual QwtText trackerText(const QPoint& p) const
+    QwtText trackerText(const QPoint& p) const override
     {
         QwtText t;
         QwtDoublePoint dp = QwtPlotZoomer::invTransform(p);
diff --git a/gr-qtgui/lib/FrequencyDisplayPlot.cc b/gr-qtgui/lib/FrequencyDisplayPlot.cc
index f9a4084c9e..1e208e8b0c 100644
--- a/gr-qtgui/lib/FrequencyDisplayPlot.cc
+++ b/gr-qtgui/lib/FrequencyDisplayPlot.cc
@@ -43,7 +43,7 @@ public:
 
 protected:
     using QwtPlotZoomer::trackerText;
-    virtual QwtText trackerText(QPoint const& p) const
+    QwtText trackerText(QPoint const& p) const override
     {
         QwtDoublePoint dp = QwtPlotZoomer::invTransform(p);
         QwtText t(QString("%1 %2, %3 %4")
diff --git a/gr-qtgui/lib/HistogramDisplayPlot.cc b/gr-qtgui/lib/HistogramDisplayPlot.cc
index 1aaf034f25..a918e0a301 100644
--- a/gr-qtgui/lib/HistogramDisplayPlot.cc
+++ b/gr-qtgui/lib/HistogramDisplayPlot.cc
@@ -58,7 +58,7 @@ public:
         setTrackerMode(QwtPicker::AlwaysOn);
     }
 
-    virtual ~HistogramDisplayZoomer() {}
+    ~HistogramDisplayZoomer() override {}
 
     virtual void updateTrackerText() { updateDisplay(); }
 
@@ -66,7 +66,7 @@ public:
 
 protected:
     using QwtPlotZoomer::trackerText;
-    virtual QwtText trackerText(const QPoint& p) const
+    QwtText trackerText(const QPoint& p) const override
     {
         QwtText t;
         QwtDoublePoint dp = QwtPlotZoomer::invTransform(p);
diff --git a/gr-qtgui/lib/TimeDomainDisplayPlot.cc b/gr-qtgui/lib/TimeDomainDisplayPlot.cc
index 80f5921b3a..6bb97dcd43 100644
--- a/gr-qtgui/lib/TimeDomainDisplayPlot.cc
+++ b/gr-qtgui/lib/TimeDomainDisplayPlot.cc
@@ -52,7 +52,7 @@ public:
         setTrackerMode(QwtPicker::AlwaysOn);
     }
 
-    virtual ~TimeDomainDisplayZoomer() {}
+    ~TimeDomainDisplayZoomer() override {}
 
     virtual void updateTrackerText() { updateDisplay(); }
 
@@ -64,7 +64,7 @@ public:
 
 protected:
     using QwtPlotZoomer::trackerText;
-    virtual QwtText trackerText(const QPoint& p) const
+    QwtText trackerText(const QPoint& p) const override
     {
         QwtText t;
         QwtDoublePoint dp = QwtPlotZoomer::invTransform(p);
diff --git a/gr-qtgui/lib/TimeRasterDisplayPlot.cc b/gr-qtgui/lib/TimeRasterDisplayPlot.cc
index 27bc1f5c89..8c2edf111e 100644
--- a/gr-qtgui/lib/TimeRasterDisplayPlot.cc
+++ b/gr-qtgui/lib/TimeRasterDisplayPlot.cc
@@ -41,9 +41,9 @@ class QwtXScaleDraw : public QwtScaleDraw, public TimeScaleData
 public:
     QwtXScaleDraw() : QwtScaleDraw(), TimeScaleData() {}
 
-    virtual ~QwtXScaleDraw() {}
+    ~QwtXScaleDraw() override {}
 
-    virtual QwtText label(double value) const
+    QwtText label(double value) const override
     {
         double secs = double(value * getSecondsPerLine());
         return QwtText(QString::number(secs, 'f', 2));
@@ -65,9 +65,9 @@ class QwtYScaleDraw : public QwtScaleDraw
 public:
     QwtYScaleDraw() : QwtScaleDraw(), d_rows(0) {}
 
-    virtual ~QwtYScaleDraw() {}
+    ~QwtYScaleDraw() override {}
 
-    virtual QwtText label(double value) const
+    QwtText label(double value) const override
     {
         if (d_rows > 0)
             value = d_rows - value;
@@ -133,7 +133,7 @@ public:
         setTrackerMode(QwtPicker::AlwaysOn);
     }
 
-    virtual ~TimeRasterZoomer() {}
+    ~TimeRasterZoomer() override {}
 
     virtual void updateTrackerText() { updateDisplay(); }
 
@@ -145,7 +145,7 @@ public:
 
 protected:
     using QwtPlotZoomer::trackerText;
-    virtual QwtText trackerText(QPoint const& p) const
+    QwtText trackerText(QPoint const& p) const override
     {
         QwtDoublePoint dp = QwtPlotZoomer::invTransform(p);
         double x = dp.x() * getSecondsPerLine();
diff --git a/gr-qtgui/lib/VectorDisplayPlot.cc b/gr-qtgui/lib/VectorDisplayPlot.cc
index 8e17605f37..a395e64776 100644
--- a/gr-qtgui/lib/VectorDisplayPlot.cc
+++ b/gr-qtgui/lib/VectorDisplayPlot.cc
@@ -50,7 +50,7 @@ public:
 
 protected:
     using QwtPlotZoomer::trackerText;
-    virtual QwtText trackerText(QPoint const& p) const
+    QwtText trackerText(QPoint const& p) const override
     {
         QwtDoublePoint dp = QwtPlotZoomer::invTransform(p);
         QwtText t(QString("%1 %2, %3 %4")
diff --git a/gr-qtgui/lib/WaterfallDisplayPlot.cc b/gr-qtgui/lib/WaterfallDisplayPlot.cc
index f2068621dd..a03a8c017d 100644
--- a/gr-qtgui/lib/WaterfallDisplayPlot.cc
+++ b/gr-qtgui/lib/WaterfallDisplayPlot.cc
@@ -41,9 +41,9 @@ class QwtTimeScaleDraw : public QwtScaleDraw, public TimeScaleData
 public:
     QwtTimeScaleDraw() : QwtScaleDraw(), TimeScaleData() {}
 
-    virtual ~QwtTimeScaleDraw() {}
+    ~QwtTimeScaleDraw() override {}
 
-    virtual QwtText label(double value) const
+    QwtText label(double value) const override
     {
         double secs = double(value * getSecondsPerLine());
         return QwtText(QString::number(secs, 'e', 2));
@@ -80,7 +80,7 @@ public:
         setTrackerMode(QwtPicker::AlwaysOn);
     }
 
-    virtual ~WaterfallZoomer() {}
+    ~WaterfallZoomer() override {}
 
     virtual void updateTrackerText() { updateDisplay(); }
 
@@ -88,7 +88,7 @@ public:
 
 protected:
     using QwtPlotZoomer::trackerText;
-    virtual QwtText trackerText(QPoint const& p) const
+    QwtText trackerText(QPoint const& p) const override
     {
         QwtDoublePoint dp = QwtPlotZoomer::invTransform(p);
         double secs = double(dp.y() * getSecondsPerLine());
diff --git a/gr-qtgui/lib/ber_sink_b_impl.h b/gr-qtgui/lib/ber_sink_b_impl.h
index aeeefe5e72..195bad4586 100644
--- a/gr-qtgui/lib/ber_sink_b_impl.h
+++ b/gr-qtgui/lib/ber_sink_b_impl.h
@@ -47,45 +47,45 @@ public:
                     float ber_limit = -7.0,
                     std::vector<std::string> curvenames = std::vector<std::string>(),
                     QWidget* parent = NULL);
-    ~ber_sink_b_impl();
+    ~ber_sink_b_impl() override;
 
     bool check_topology(int ninputs, int noutputs) override;
 
-    void exec_();
+    void exec_() override;
     QWidget* qwidget();
 
 #ifdef ENABLE_PYTHON
-    PyObject* pyqwidget();
+    PyObject* pyqwidget() override;
 #else
     void* pyqwidget();
 #endif
 
-    void set_y_axis(double min, double max);
-    void set_x_axis(double min, double max);
+    void set_y_axis(double min, double max) override;
+    void set_x_axis(double min, double max) override;
 
-    void set_update_time(double t);
-    void set_title(const std::string& title);
-    void set_line_label(unsigned int which, const std::string& label);
-    void set_line_color(unsigned int which, const std::string& color);
-    void set_line_width(unsigned int which, int width);
-    void set_line_style(unsigned int which, int style);
-    void set_line_marker(unsigned int which, int marker);
+    void set_update_time(double t) override;
+    void set_title(const std::string& title) override;
+    void set_line_label(unsigned int which, const std::string& label) override;
+    void set_line_color(unsigned int which, const std::string& color) override;
+    void set_line_width(unsigned int which, int width) override;
+    void set_line_style(unsigned int which, int style) override;
+    void set_line_marker(unsigned int which, int marker) override;
 
-    void set_line_alpha(unsigned int which, double alpha);
+    void set_line_alpha(unsigned int which, double alpha) override;
 
-    std::string title();
-    std::string line_label(unsigned int which);
-    std::string line_color(unsigned int which);
-    int line_width(unsigned int which);
-    int line_style(unsigned int which);
-    int line_marker(unsigned int which);
-    double line_alpha(unsigned int which);
+    std::string title() override;
+    std::string line_label(unsigned int which) override;
+    std::string line_color(unsigned int which) override;
+    int line_width(unsigned int which) override;
+    int line_style(unsigned int which) override;
+    int line_marker(unsigned int which) override;
+    double line_alpha(unsigned int which) override;
 
-    void set_size(int width, int height);
+    void set_size(int width, int height) override;
 
-    int nsamps() const;
-    void enable_menu(bool en);
-    void enable_autoscale(bool en);
+    int nsamps() const override;
+    void enable_menu(bool en) override;
+    void enable_autoscale(bool en) override;
 
     int general_work(int noutput_items,
                      gr_vector_int& ninput_items,
diff --git a/gr-qtgui/lib/const_sink_c_impl.h b/gr-qtgui/lib/const_sink_c_impl.h
index 1038b6558d..17f9e97e2e 100644
--- a/gr-qtgui/lib/const_sink_c_impl.h
+++ b/gr-qtgui/lib/const_sink_c_impl.h
@@ -64,54 +64,54 @@ public:
                       const std::string& name,
                       int nconnections,
                       QWidget* parent = NULL);
-    ~const_sink_c_impl();
+    ~const_sink_c_impl() override;
 
     bool check_topology(int ninputs, int noutputs) override;
 
-    void exec_();
-    QWidget* qwidget();
+    void exec_() override;
+    QWidget* qwidget() override;
 
 #ifdef ENABLE_PYTHON
-    PyObject* pyqwidget();
+    PyObject* pyqwidget() override;
 #else
     void* pyqwidget();
 #endif
 
-    void set_y_axis(double min, double max);
-    void set_x_axis(double min, double max);
-
-    void set_update_time(double t);
-    void set_title(const std::string& title);
-    void set_line_label(unsigned int which, const std::string& label);
-    void set_line_color(unsigned int which, const std::string& color);
-    void set_line_width(unsigned int which, int width);
-    void set_line_style(unsigned int which, int style);
-    void set_line_marker(unsigned int which, int marker);
-    void set_nsamps(const int size);
-    void set_line_alpha(unsigned int which, double alpha);
+    void set_y_axis(double min, double max) override;
+    void set_x_axis(double min, double max) override;
+
+    void set_update_time(double t) override;
+    void set_title(const std::string& title) override;
+    void set_line_label(unsigned int which, const std::string& label) override;
+    void set_line_color(unsigned int which, const std::string& color) override;
+    void set_line_width(unsigned int which, int width) override;
+    void set_line_style(unsigned int which, int style) override;
+    void set_line_marker(unsigned int which, int marker) override;
+    void set_nsamps(const int size) override;
+    void set_line_alpha(unsigned int which, double alpha) override;
     void set_trigger_mode(trigger_mode mode,
                           trigger_slope slope,
                           float level,
                           int channel,
-                          const std::string& tag_key = "");
-
-    std::string title();
-    std::string line_label(unsigned int which);
-    std::string line_color(unsigned int which);
-    int line_width(unsigned int which);
-    int line_style(unsigned int which);
-    int line_marker(unsigned int which);
-    double line_alpha(unsigned int which);
-
-    void set_size(int width, int height);
-
-    int nsamps() const;
-    void enable_menu(bool en);
-    void enable_autoscale(bool en);
-    void enable_grid(bool en);
-    void enable_axis_labels(bool en);
-    void disable_legend();
-    void reset();
+                          const std::string& tag_key = "") override;
+
+    std::string title() override;
+    std::string line_label(unsigned int which) override;
+    std::string line_color(unsigned int which) override;
+    int line_width(unsigned int which) override;
+    int line_style(unsigned int which) override;
+    int line_marker(unsigned int which) override;
+    double line_alpha(unsigned int which) override;
+
+    void set_size(int width, int height) override;
+
+    int nsamps() const override;
+    void enable_menu(bool en) override;
+    void enable_autoscale(bool en) override;
+    void enable_grid(bool en) override;
+    void enable_axis_labels(bool en) override;
+    void disable_legend() override;
+    void reset() override;
 
     int work(int noutput_items,
              gr_vector_const_void_star& input_items,
diff --git a/gr-qtgui/lib/edit_box_msg_impl.h b/gr-qtgui/lib/edit_box_msg_impl.h
index fa565a5e7f..f56eaeaef4 100644
--- a/gr-qtgui/lib/edit_box_msg_impl.h
+++ b/gr-qtgui/lib/edit_box_msg_impl.h
@@ -53,17 +53,17 @@ public:
                       bool is_static = true,
                       const std::string& key = "",
                       QWidget* parent = 0);
-    ~edit_box_msg_impl();
+    ~edit_box_msg_impl() override;
 
     // Overload the start method of gr::block to emit a message if a
     // default value is provided.
-    bool start();
+    bool start() override;
 
-    void exec_();
-    QWidget* qwidget();
+    void exec_() override;
+    QWidget* qwidget() override;
 
 #ifdef ENABLE_PYTHON
-    PyObject* pyqwidget();
+    PyObject* pyqwidget() override;
 #else
     void* pyqwidget();
 #endif
diff --git a/gr-qtgui/lib/eye_sink_c_impl.h b/gr-qtgui/lib/eye_sink_c_impl.h
index a1f4c98b44..7283a023d8 100644
--- a/gr-qtgui/lib/eye_sink_c_impl.h
+++ b/gr-qtgui/lib/eye_sink_c_impl.h
@@ -68,63 +68,63 @@ public:
                     double samp_rate,
                     unsigned int nconnections,
                     QWidget* parent = NULL);
-    ~eye_sink_c_impl();
+    ~eye_sink_c_impl() override;
 
     bool check_topology(int ninputs, int noutputs) override;
 
-    void exec_();
-    QWidget* qwidget();
+    void exec_() override;
+    QWidget* qwidget() override;
 
 #ifdef ENABLE_PYTHON
-    PyObject* pyqwidget();
+    PyObject* pyqwidget() override;
 #else
     void* pyqwidget();
 #endif
 
-    void set_y_axis(double min, double max);
-    void set_y_label(const std::string& label, const std::string& unit = "");
-    void set_update_time(double t);
-    void set_samp_per_symbol(unsigned int sps);
-    void set_line_label(unsigned int which, const std::string& label);
-    void set_line_color(unsigned int which, const std::string& color);
-    void set_line_width(unsigned int which, int width);
-    void set_line_style(unsigned int which, int style);
-    void set_line_marker(unsigned int which, int marker);
-    void set_nsamps(const int size);
-    void set_samp_rate(const double samp_rate);
-    void set_line_alpha(unsigned int which, double alpha);
+    void set_y_axis(double min, double max) override;
+    void set_y_label(const std::string& label, const std::string& unit = "") override;
+    void set_update_time(double t) override;
+    void set_samp_per_symbol(unsigned int sps) override;
+    void set_line_label(unsigned int which, const std::string& label) override;
+    void set_line_color(unsigned int which, const std::string& color) override;
+    void set_line_width(unsigned int which, int width) override;
+    void set_line_style(unsigned int which, int style) override;
+    void set_line_marker(unsigned int which, int marker) override;
+    void set_nsamps(const int size) override;
+    void set_samp_rate(const double samp_rate) override;
+    void set_line_alpha(unsigned int which, double alpha) override;
     void set_trigger_mode(gr::qtgui::trigger_mode mode,
                           gr::qtgui::trigger_slope slope,
                           float level,
                           float delay,
                           int channel,
-                          const std::string& tag_key = "");
-
-    std::string title();
-    std::string line_label(unsigned int which);
-    std::string line_color(unsigned int which);
-    int line_width(unsigned int which);
-    int line_style(unsigned int which);
-    int line_marker(unsigned int which);
-    double line_alpha(unsigned int which);
-
-    void set_size(int width, int height);
-
-    int nsamps() const;
-
-    void enable_menu(bool en);
-    void enable_grid(bool en);
-    void enable_autoscale(bool en);
-    void enable_stem_plot(bool en); // Used by parent class, do not remove
-    void enable_semilogx(bool en);  // Used by parent class, do not remove
-    void enable_semilogy(bool en);  // Used by parent class, do not remove
-    void enable_control_panel(bool en);
-    void enable_tags(unsigned int which, bool en);
-    void enable_tags(bool en);
-    void enable_axis_labels(bool en);
-    void disable_legend();
-
-    void reset();
+                          const std::string& tag_key = "") override;
+
+    std::string title() override;
+    std::string line_label(unsigned int which) override;
+    std::string line_color(unsigned int which) override;
+    int line_width(unsigned int which) override;
+    int line_style(unsigned int which) override;
+    int line_marker(unsigned int which) override;
+    double line_alpha(unsigned int which) override;
+
+    void set_size(int width, int height) override;
+
+    int nsamps() const override;
+
+    void enable_menu(bool en) override;
+    void enable_grid(bool en) override;
+    void enable_autoscale(bool en) override;
+    void enable_stem_plot(bool en) override; // Used by parent class, do not remove
+    void enable_semilogx(bool en) override;  // Used by parent class, do not remove
+    void enable_semilogy(bool en) override;  // Used by parent class, do not remove
+    void enable_control_panel(bool en) override;
+    void enable_tags(unsigned int which, bool en) override;
+    void enable_tags(bool en) override;
+    void enable_axis_labels(bool en) override;
+    void disable_legend() override;
+
+    void reset() override;
 
     int work(int noutput_items,
              gr_vector_const_void_star& input_items,
diff --git a/gr-qtgui/lib/eye_sink_f_impl.h b/gr-qtgui/lib/eye_sink_f_impl.h
index f03b1661bd..5711c8a322 100644
--- a/gr-qtgui/lib/eye_sink_f_impl.h
+++ b/gr-qtgui/lib/eye_sink_f_impl.h
@@ -65,63 +65,63 @@ public:
                     double samp_rate,
                     unsigned int nconnections,
                     QWidget* parent = NULL);
-    ~eye_sink_f_impl();
+    ~eye_sink_f_impl() override;
 
     bool check_topology(int ninputs, int noutputs) override;
 
-    void exec_();
-    QWidget* qwidget();
+    void exec_() override;
+    QWidget* qwidget() override;
 
 #ifdef ENABLE_PYTHON
-    PyObject* pyqwidget();
+    PyObject* pyqwidget() override;
 #else
     void* pyqwidget();
 #endif
 
-    void set_y_axis(double min, double max);
-    void set_y_label(const std::string& label, const std::string& unit = "");
-    void set_update_time(double t);
-    void set_samp_per_symbol(unsigned int sps);
-    void set_line_label(unsigned int which, const std::string& label);
-    void set_line_color(unsigned int which, const std::string& color);
-    void set_line_width(unsigned int which, int width);
-    void set_line_style(unsigned int which, int style);
-    void set_line_marker(unsigned int which, int marker);
-    void set_nsamps(const int size);
-    void set_samp_rate(const double samp_rate);
-    void set_line_alpha(unsigned int which, double alpha);
+    void set_y_axis(double min, double max) override;
+    void set_y_label(const std::string& label, const std::string& unit = "") override;
+    void set_update_time(double t) override;
+    void set_samp_per_symbol(unsigned int sps) override;
+    void set_line_label(unsigned int which, const std::string& label) override;
+    void set_line_color(unsigned int which, const std::string& color) override;
+    void set_line_width(unsigned int which, int width) override;
+    void set_line_style(unsigned int which, int style) override;
+    void set_line_marker(unsigned int which, int marker) override;
+    void set_nsamps(const int size) override;
+    void set_samp_rate(const double samp_rate) override;
+    void set_line_alpha(unsigned int which, double alpha) override;
     void set_trigger_mode(gr::qtgui::trigger_mode mode,
                           gr::qtgui::trigger_slope slope,
                           float level,
                           float delay,
                           int channel,
-                          const std::string& tag_key = "");
-
-    std::string title();
-    std::string line_label(unsigned int which);
-    std::string line_color(unsigned int which);
-    int line_width(unsigned int which);
-    int line_style(unsigned int which);
-    int line_marker(unsigned int which);
-    double line_alpha(unsigned int which);
-
-    void set_size(int width, int height);
-
-    int nsamps() const;
-
-    void enable_menu(bool en);
-    void enable_grid(bool en);
-    void enable_autoscale(bool en);
-    void enable_stem_plot(bool en); // Used by parent class, do not remove
-    void enable_semilogx(bool en);  // Used by parent class, do not remove
-    void enable_semilogy(bool en);  // Used by parent class, do not remove
-    void enable_control_panel(bool en);
-    void enable_tags(unsigned int which, bool en);
-    void enable_tags(bool en);
-    void enable_axis_labels(bool en);
-    void disable_legend();
-
-    void reset();
+                          const std::string& tag_key = "") override;
+
+    std::string title() override;
+    std::string line_label(unsigned int which) override;
+    std::string line_color(unsigned int which) override;
+    int line_width(unsigned int which) override;
+    int line_style(unsigned int which) override;
+    int line_marker(unsigned int which) override;
+    double line_alpha(unsigned int which) override;
+
+    void set_size(int width, int height) override;
+
+    int nsamps() const override;
+
+    void enable_menu(bool en) override;
+    void enable_grid(bool en) override;
+    void enable_autoscale(bool en) override;
+    void enable_stem_plot(bool en) override; // Used by parent class, do not remove
+    void enable_semilogx(bool en) override;  // Used by parent class, do not remove
+    void enable_semilogy(bool en) override;  // Used by parent class, do not remove
+    void enable_control_panel(bool en) override;
+    void enable_tags(unsigned int which, bool en) override;
+    void enable_tags(bool en) override;
+    void enable_axis_labels(bool en) override;
+    void disable_legend() override;
+
+    void reset() override;
 
     int work(int noutput_items,
              gr_vector_const_void_star& input_items,
diff --git a/gr-qtgui/lib/freq_sink_c_impl.h b/gr-qtgui/lib/freq_sink_c_impl.h
index bae0ecb1da..975b42e8ec 100644
--- a/gr-qtgui/lib/freq_sink_c_impl.h
+++ b/gr-qtgui/lib/freq_sink_c_impl.h
@@ -96,66 +96,66 @@ public:
                      const std::string& name,
                      int nconnections,
                      QWidget* parent = NULL);
-    ~freq_sink_c_impl();
+    ~freq_sink_c_impl() override;
 
     bool check_topology(int ninputs, int noutputs) override;
 
-    void exec_();
-    QWidget* qwidget();
+    void exec_() override;
+    QWidget* qwidget() override;
 
 #ifdef ENABLE_PYTHON
-    PyObject* pyqwidget();
+    PyObject* pyqwidget() override;
 #else
     void* pyqwidget();
 #endif
 
-    void set_fft_size(const int fftsize);
-    int fft_size() const;
-    void set_fft_average(const float fftavg);
-    float fft_average() const;
-    void set_fft_window(const fft::window::win_type win);
-    fft::window::win_type fft_window();
-    void set_fft_window_normalized(const bool enable);
-
-    void set_frequency_range(const double centerfreq, const double bandwidth);
-    void set_y_axis(double min, double max);
-
-    void set_update_time(double t);
-
-    void set_title(const std::string& title);
-    void set_y_label(const std::string& label, const std::string& unit);
-    void set_line_label(unsigned int which, const std::string& label);
-    void set_line_color(unsigned int which, const std::string& color);
-    void set_line_width(unsigned int which, int width);
-    void set_line_style(unsigned int which, int style);
-    void set_line_marker(unsigned int which, int marker);
-    void set_line_alpha(unsigned int which, double alpha);
+    void set_fft_size(const int fftsize) override;
+    int fft_size() const override;
+    void set_fft_average(const float fftavg) override;
+    float fft_average() const override;
+    void set_fft_window(const fft::window::win_type win) override;
+    fft::window::win_type fft_window() override;
+    void set_fft_window_normalized(const bool enable) override;
+
+    void set_frequency_range(const double centerfreq, const double bandwidth) override;
+    void set_y_axis(double min, double max) override;
+
+    void set_update_time(double t) override;
+
+    void set_title(const std::string& title) override;
+    void set_y_label(const std::string& label, const std::string& unit) override;
+    void set_line_label(unsigned int which, const std::string& label) override;
+    void set_line_color(unsigned int which, const std::string& color) override;
+    void set_line_width(unsigned int which, int width) override;
+    void set_line_style(unsigned int which, int style) override;
+    void set_line_marker(unsigned int which, int marker) override;
+    void set_line_alpha(unsigned int which, double alpha) override;
     void set_trigger_mode(trigger_mode mode,
                           float level,
                           int channel,
-                          const std::string& tag_key = "");
-
-    std::string title();
-    std::string line_label(unsigned int which);
-    std::string line_color(unsigned int which);
-    int line_width(unsigned int which);
-    int line_style(unsigned int which);
-    int line_marker(unsigned int which);
-    double line_alpha(unsigned int which);
-
-    void set_size(int width, int height);
-
-    void enable_menu(bool en);
-    void enable_grid(bool en);
-    void enable_autoscale(bool en);
-    void enable_control_panel(bool en);
-    void enable_max_hold(bool en);
-    void enable_min_hold(bool en);
-    void clear_max_hold();
-    void clear_min_hold();
-    void disable_legend();
-    void reset();
-    void enable_axis_labels(bool en);
+                          const std::string& tag_key = "") override;
+
+    std::string title() override;
+    std::string line_label(unsigned int which) override;
+    std::string line_color(unsigned int which) override;
+    int line_width(unsigned int which) override;
+    int line_style(unsigned int which) override;
+    int line_marker(unsigned int which) override;
+    double line_alpha(unsigned int which) override;
+
+    void set_size(int width, int height) override;
+
+    void enable_menu(bool en) override;
+    void enable_grid(bool en) override;
+    void enable_autoscale(bool en) override;
+    void enable_control_panel(bool en) override;
+    void enable_max_hold(bool en) override;
+    void enable_min_hold(bool en) override;
+    void clear_max_hold() override;
+    void clear_min_hold() override;
+    void disable_legend() override;
+    void reset() override;
+    void enable_axis_labels(bool en) override;
 
     int work(int noutput_items,
              gr_vector_const_void_star& input_items,
diff --git a/gr-qtgui/lib/freq_sink_f_impl.h b/gr-qtgui/lib/freq_sink_f_impl.h
index 3e41b8abb3..a5c3f7615f 100644
--- a/gr-qtgui/lib/freq_sink_f_impl.h
+++ b/gr-qtgui/lib/freq_sink_f_impl.h
@@ -96,66 +96,66 @@ public:
                      const std::string& name,
                      int nconnections,
                      QWidget* parent = NULL);
-    ~freq_sink_f_impl();
+    ~freq_sink_f_impl() override;
 
     bool check_topology(int ninputs, int noutputs) override;
 
-    void exec_();
-    QWidget* qwidget();
+    void exec_() override;
+    QWidget* qwidget() override;
 
 #ifdef ENABLE_PYTHON
-    PyObject* pyqwidget();
+    PyObject* pyqwidget() override;
 #else
     void* pyqwidget();
 #endif
 
-    void set_fft_size(const int fftsize);
-    int fft_size() const;
-    void set_fft_average(const float fftavg);
-    float fft_average() const;
-    void set_fft_window(const fft::window::win_type win);
-    fft::window::win_type fft_window();
-    void set_fft_window_normalized(const bool enable);
-
-    void set_frequency_range(const double centerfreq, const double bandwidth);
-    void set_y_axis(double min, double max);
-
-    void set_update_time(double t);
-    void set_title(const std::string& title);
-    void set_y_label(const std::string& label, const std::string& unit);
-    void set_line_label(unsigned int which, const std::string& label);
-    void set_line_color(unsigned int which, const std::string& color);
-    void set_line_width(unsigned int which, int width);
-    void set_line_style(unsigned int which, int style);
-    void set_line_marker(unsigned int which, int marker);
-    void set_line_alpha(unsigned int which, double alpha);
-    void set_plot_pos_half(bool half);
+    void set_fft_size(const int fftsize) override;
+    int fft_size() const override;
+    void set_fft_average(const float fftavg) override;
+    float fft_average() const override;
+    void set_fft_window(const fft::window::win_type win) override;
+    fft::window::win_type fft_window() override;
+    void set_fft_window_normalized(const bool enable) override;
+
+    void set_frequency_range(const double centerfreq, const double bandwidth) override;
+    void set_y_axis(double min, double max) override;
+
+    void set_update_time(double t) override;
+    void set_title(const std::string& title) override;
+    void set_y_label(const std::string& label, const std::string& unit) override;
+    void set_line_label(unsigned int which, const std::string& label) override;
+    void set_line_color(unsigned int which, const std::string& color) override;
+    void set_line_width(unsigned int which, int width) override;
+    void set_line_style(unsigned int which, int style) override;
+    void set_line_marker(unsigned int which, int marker) override;
+    void set_line_alpha(unsigned int which, double alpha) override;
+    void set_plot_pos_half(bool half) override;
     void set_trigger_mode(trigger_mode mode,
                           float level,
                           int channel,
-                          const std::string& tag_key = "");
-
-    std::string title();
-    std::string line_label(unsigned int which);
-    std::string line_color(unsigned int which);
-    int line_width(unsigned int which);
-    int line_style(unsigned int which);
-    int line_marker(unsigned int which);
-    double line_alpha(unsigned int which);
-
-    void set_size(int width, int height);
-
-    void enable_menu(bool en);
-    void enable_grid(bool en);
-    void enable_autoscale(bool en);
-    void enable_control_panel(bool en);
-    void enable_max_hold(bool en);
-    void enable_min_hold(bool en);
-    void clear_max_hold();
-    void clear_min_hold();
-    void disable_legend();
-    void reset();
-    void enable_axis_labels(bool en);
+                          const std::string& tag_key = "") override;
+
+    std::string title() override;
+    std::string line_label(unsigned int which) override;
+    std::string line_color(unsigned int which) override;
+    int line_width(unsigned int which) override;
+    int line_style(unsigned int which) override;
+    int line_marker(unsigned int which) override;
+    double line_alpha(unsigned int which) override;
+
+    void set_size(int width, int height) override;
+
+    void enable_menu(bool en) override;
+    void enable_grid(bool en) override;
+    void enable_autoscale(bool en) override;
+    void enable_control_panel(bool en) override;
+    void enable_max_hold(bool en) override;
+    void enable_min_hold(bool en) override;
+    void clear_max_hold() override;
+    void clear_min_hold() override;
+    void disable_legend() override;
+    void reset() override;
+    void enable_axis_labels(bool en) override;
 
     int work(int noutput_items,
              gr_vector_const_void_star& input_items,
diff --git a/gr-qtgui/lib/histogram_sink_f_impl.h b/gr-qtgui/lib/histogram_sink_f_impl.h
index 754c262a71..f181654108 100644
--- a/gr-qtgui/lib/histogram_sink_f_impl.h
+++ b/gr-qtgui/lib/histogram_sink_f_impl.h
@@ -54,54 +54,54 @@ public:
                           const std::string& name,
                           int nconnections,
                           QWidget* parent = NULL);
-    ~histogram_sink_f_impl();
+    ~histogram_sink_f_impl() override;
 
     bool check_topology(int ninputs, int noutputs) override;
 
-    void exec_();
-    QWidget* qwidget();
+    void exec_() override;
+    QWidget* qwidget() override;
 
 #ifdef ENABLE_PYTHON
-    PyObject* pyqwidget();
+    PyObject* pyqwidget() override;
 #else
     void* pyqwidget();
 #endif
 
-    void set_y_axis(double min, double max);
-    void set_x_axis(double min, double max);
-    void set_update_time(double t);
-    void set_title(const std::string& title);
-    void set_line_label(unsigned int which, const std::string& label);
-    void set_line_color(unsigned int which, const std::string& color);
-    void set_line_width(unsigned int which, int width);
-    void set_line_style(unsigned int which, int style);
-    void set_line_marker(unsigned int which, int marker);
-    void set_line_alpha(unsigned int which, double alpha);
-    void set_nsamps(const int newsize);
-    void set_bins(const int bins);
-    void enable_axis_labels(bool en);
-
-    std::string title();
-    std::string line_label(unsigned int which);
-    std::string line_color(unsigned int which);
-    int line_width(unsigned int which);
-    int line_style(unsigned int which);
-    int line_marker(unsigned int which);
-    double line_alpha(unsigned int which);
-
-    void set_size(int width, int height);
-
-    void enable_menu(bool en);
-    void enable_grid(bool en);
-    void enable_autoscale(bool en);
-    void enable_semilogx(bool en);
-    void enable_semilogy(bool en);
-    void enable_accumulate(bool en);
-    void disable_legend();
-    void autoscalex();
-    int nsamps() const;
-    int bins() const;
-    void reset();
+    void set_y_axis(double min, double max) override;
+    void set_x_axis(double min, double max) override;
+    void set_update_time(double t) override;
+    void set_title(const std::string& title) override;
+    void set_line_label(unsigned int which, const std::string& label) override;
+    void set_line_color(unsigned int which, const std::string& color) override;
+    void set_line_width(unsigned int which, int width) override;
+    void set_line_style(unsigned int which, int style) override;
+    void set_line_marker(unsigned int which, int marker) override;
+    void set_line_alpha(unsigned int which, double alpha) override;
+    void set_nsamps(const int newsize) override;
+    void set_bins(const int bins) override;
+    void enable_axis_labels(bool en) override;
+
+    std::string title() override;
+    std::string line_label(unsigned int which) override;
+    std::string line_color(unsigned int which) override;
+    int line_width(unsigned int which) override;
+    int line_style(unsigned int which) override;
+    int line_marker(unsigned int which) override;
+    double line_alpha(unsigned int which) override;
+
+    void set_size(int width, int height) override;
+
+    void enable_menu(bool en) override;
+    void enable_grid(bool en) override;
+    void enable_autoscale(bool en) override;
+    void enable_semilogx(bool en) override;
+    void enable_semilogy(bool en) override;
+    void enable_accumulate(bool en) override;
+    void disable_legend() override;
+    void autoscalex() override;
+    int nsamps() const override;
+    int bins() const override;
+    void reset() override;
 
     int work(int noutput_items,
              gr_vector_const_void_star& input_items,
diff --git a/gr-qtgui/lib/number_sink_impl.h b/gr-qtgui/lib/number_sink_impl.h
index 7bc7228330..05d78aaa3c 100644
--- a/gr-qtgui/lib/number_sink_impl.h
+++ b/gr-qtgui/lib/number_sink_impl.h
@@ -57,46 +57,48 @@ public:
                      graph_t graph_type = NUM_GRAPH_HORIZ,
                      int nconnections = 1,
                      QWidget* parent = NULL);
-    ~number_sink_impl();
+    ~number_sink_impl() override;
 
     bool check_topology(int ninputs, int noutputs) override;
 
-    void exec_();
-    QWidget* qwidget();
+    void exec_() override;
+    QWidget* qwidget() override;
 
 #ifdef ENABLE_PYTHON
-    PyObject* pyqwidget();
+    PyObject* pyqwidget() override;
 #else
     void* pyqwidget();
 #endif
 
-    void set_update_time(double t);
-    void set_average(const float avg);
-    void set_graph_type(const graph_t type);
-    void set_color(unsigned int which, const std::string& min, const std::string& max);
-    void set_color(unsigned int which, int min, int max);
-    void set_label(unsigned int which, const std::string& label);
-    void set_min(unsigned int which, float min);
-    void set_max(unsigned int which, float max);
-    void set_title(const std::string& title);
-    void set_unit(unsigned int which, const std::string& unit);
-    void set_factor(unsigned int which, float factor);
-
-    float average() const;
-    graph_t graph_type() const;
-    std::string color_min(unsigned int which) const;
-    std::string color_max(unsigned int which) const;
-    std::string label(unsigned int which) const;
-    float min(unsigned int which) const;
-    float max(unsigned int which) const;
-    std::string title() const;
-    std::string unit(unsigned int which) const;
-    float factor(unsigned int which) const;
-
-    void enable_menu(bool en);
-    void enable_autoscale(bool en = true);
-
-    void reset();
+    void set_update_time(double t) override;
+    void set_average(const float avg) override;
+    void set_graph_type(const graph_t type) override;
+    void set_color(unsigned int which,
+                   const std::string& min,
+                   const std::string& max) override;
+    void set_color(unsigned int which, int min, int max) override;
+    void set_label(unsigned int which, const std::string& label) override;
+    void set_min(unsigned int which, float min) override;
+    void set_max(unsigned int which, float max) override;
+    void set_title(const std::string& title) override;
+    void set_unit(unsigned int which, const std::string& unit) override;
+    void set_factor(unsigned int which, float factor) override;
+
+    float average() const override;
+    graph_t graph_type() const override;
+    std::string color_min(unsigned int which) const override;
+    std::string color_max(unsigned int which) const override;
+    std::string label(unsigned int which) const override;
+    float min(unsigned int which) const override;
+    float max(unsigned int which) const override;
+    std::string title() const override;
+    std::string unit(unsigned int which) const override;
+    float factor(unsigned int which) const override;
+
+    void enable_menu(bool en) override;
+    void enable_autoscale(bool en = true) override;
+
+    void reset() override;
 
     int work(int noutput_items,
              gr_vector_const_void_star& input_items,
diff --git a/gr-qtgui/lib/sink_c_impl.h b/gr-qtgui/lib/sink_c_impl.h
index db1c2f4884..466fcfd384 100644
--- a/gr-qtgui/lib/sink_c_impl.h
+++ b/gr-qtgui/lib/sink_c_impl.h
@@ -76,32 +76,32 @@ public:
                 bool plottime,
                 bool plotconst,
                 QWidget* parent);
-    ~sink_c_impl();
+    ~sink_c_impl() override;
 
     bool check_topology(int ninputs, int noutputs) override;
 
-    void exec_();
-    QWidget* qwidget();
+    void exec_() override;
+    QWidget* qwidget() override;
 
 #ifdef ENABLE_PYTHON
-    PyObject* pyqwidget();
+    PyObject* pyqwidget() override;
 #else
     void* pyqwidget();
 #endif
 
-    void set_fft_size(const int fftsize);
-    int fft_size() const;
+    void set_fft_size(const int fftsize) override;
+    int fft_size() const override;
 
-    void set_frequency_range(const double centerfreq, const double bandwidth);
-    void set_fft_power_db(double min, double max);
-    void enable_rf_freq(bool en);
+    void set_frequency_range(const double centerfreq, const double bandwidth) override;
+    void set_fft_power_db(double min, double max) override;
+    void enable_rf_freq(bool en) override;
 
     // void set_time_domain_axis(double min, double max);
     // void set_constellation_axis(double xmin, double xmax,
     //                            double ymin, double ymax);
     // void set_constellation_pen_size(int size);
 
-    void set_update_time(double t);
+    void set_update_time(double t) override;
 
     int general_work(int noutput_items,
                      gr_vector_int& ninput_items,
diff --git a/gr-qtgui/lib/sink_f_impl.h b/gr-qtgui/lib/sink_f_impl.h
index a994f91c37..fb954b6875 100644
--- a/gr-qtgui/lib/sink_f_impl.h
+++ b/gr-qtgui/lib/sink_f_impl.h
@@ -74,32 +74,32 @@ public:
                 bool plottime,
                 bool plotconst,
                 QWidget* parent);
-    ~sink_f_impl();
+    ~sink_f_impl() override;
 
     bool check_topology(int ninputs, int noutputs) override;
 
-    void exec_();
-    QWidget* qwidget();
+    void exec_() override;
+    QWidget* qwidget() override;
 
 #ifdef ENABLE_PYTHON
-    PyObject* pyqwidget();
+    PyObject* pyqwidget() override;
 #else
     void* pyqwidget();
 #endif
 
-    void set_fft_size(const int fftsize);
-    int fft_size() const;
+    void set_fft_size(const int fftsize) override;
+    int fft_size() const override;
 
-    void set_frequency_range(const double centerfreq, const double bandwidth);
-    void set_fft_power_db(double min, double max);
-    void enable_rf_freq(bool en);
+    void set_frequency_range(const double centerfreq, const double bandwidth) override;
+    void set_fft_power_db(double min, double max) override;
+    void enable_rf_freq(bool en) override;
 
     // void set_time_domain_axis(double min, double max);
     // void set_constellation_axis(double xmin, double xmax,
     //                            double ymin, double ymax);
     // void set_constellation_pen_size(int size);
 
-    void set_update_time(double t);
+    void set_update_time(double t) override;
 
     int general_work(int noutput_items,
                      gr_vector_int& ninput_items,
diff --git a/gr-qtgui/lib/time_raster_sink_b_impl.h b/gr-qtgui/lib/time_raster_sink_b_impl.h
index d507420266..4ffff9b8f6 100644
--- a/gr-qtgui/lib/time_raster_sink_b_impl.h
+++ b/gr-qtgui/lib/time_raster_sink_b_impl.h
@@ -63,57 +63,57 @@ public:
                             const std::string& name,
                             int nconnections,
                             QWidget* parent = NULL);
-    ~time_raster_sink_b_impl();
+    ~time_raster_sink_b_impl() override;
 
     bool check_topology(int ninputs, int noutputs) override;
 
-    void exec_();
-    QWidget* qwidget();
+    void exec_() override;
+    QWidget* qwidget() override;
 
 #ifdef ENABLE_PYTHON
-    PyObject* pyqwidget();
+    PyObject* pyqwidget() override;
 #else
     void* pyqwidget();
 #endif
 
-    void set_update_time(double t);
-    void set_title(const std::string& title);
-    void set_line_label(unsigned int which, const std::string& label);
-    void set_line_color(unsigned int which, const std::string& color);
-    void set_line_width(unsigned int which, int width);
-    void set_line_style(unsigned int which, Qt::PenStyle style);
-    void set_line_marker(unsigned int which, QwtSymbol::Style marker);
-    void set_line_alpha(unsigned int which, double alpha);
-    void set_color_map(unsigned int which, const int color);
-
-    std::string title();
-    std::string line_label(unsigned int which);
-    std::string line_color(unsigned int which);
-    int line_width(unsigned int which);
-    int line_style(unsigned int which);
-    int line_marker(unsigned int which);
-    double line_alpha(unsigned int which);
-    int color_map(unsigned int which);
-
-    void set_size(int width, int height);
-
-    void set_samp_rate(const double samp_rate);
-    void set_num_rows(double rows);
-    void set_num_cols(double cols);
-
-    double num_rows();
-    double num_cols();
-
-    void set_multiplier(const std::vector<float>& mult);
-    void set_offset(const std::vector<float>& offset);
-
-    void set_intensity_range(float min, float max);
-
-    void enable_menu(bool en);
-    void enable_grid(bool en);
-    void enable_autoscale(bool en);
-    void enable_axis_labels(bool en);
-    void reset();
+    void set_update_time(double t) override;
+    void set_title(const std::string& title) override;
+    void set_line_label(unsigned int which, const std::string& label) override;
+    void set_line_color(unsigned int which, const std::string& color) override;
+    void set_line_width(unsigned int which, int width) override;
+    void set_line_style(unsigned int which, Qt::PenStyle style) override;
+    void set_line_marker(unsigned int which, QwtSymbol::Style marker) override;
+    void set_line_alpha(unsigned int which, double alpha) override;
+    void set_color_map(unsigned int which, const int color) override;
+
+    std::string title() override;
+    std::string line_label(unsigned int which) override;
+    std::string line_color(unsigned int which) override;
+    int line_width(unsigned int which) override;
+    int line_style(unsigned int which) override;
+    int line_marker(unsigned int which) override;
+    double line_alpha(unsigned int which) override;
+    int color_map(unsigned int which) override;
+
+    void set_size(int width, int height) override;
+
+    void set_samp_rate(const double samp_rate) override;
+    void set_num_rows(double rows) override;
+    void set_num_cols(double cols) override;
+
+    double num_rows() override;
+    double num_cols() override;
+
+    void set_multiplier(const std::vector<float>& mult) override;
+    void set_offset(const std::vector<float>& offset) override;
+
+    void set_intensity_range(float min, float max) override;
+
+    void enable_menu(bool en) override;
+    void enable_grid(bool en) override;
+    void enable_autoscale(bool en) override;
+    void enable_axis_labels(bool en) override;
+    void reset() override;
 
     int work(int noutput_items,
              gr_vector_const_void_star& input_items,
diff --git a/gr-qtgui/lib/time_raster_sink_f_impl.h b/gr-qtgui/lib/time_raster_sink_f_impl.h
index 173d83314a..b85128dad7 100644
--- a/gr-qtgui/lib/time_raster_sink_f_impl.h
+++ b/gr-qtgui/lib/time_raster_sink_f_impl.h
@@ -62,57 +62,57 @@ public:
                             const std::string& name,
                             int nconnections,
                             QWidget* parent = NULL);
-    ~time_raster_sink_f_impl();
+    ~time_raster_sink_f_impl() override;
 
     bool check_topology(int ninputs, int noutputs) override;
 
-    void exec_();
-    QWidget* qwidget();
+    void exec_() override;
+    QWidget* qwidget() override;
 
 #ifdef ENABLE_PYTHON
-    PyObject* pyqwidget();
+    PyObject* pyqwidget() override;
 #else
     void* pyqwidget();
 #endif
 
-    void set_update_time(double t);
-    void set_title(const std::string& title);
-    void set_line_label(unsigned int which, const std::string& label);
-    void set_line_color(unsigned int which, const std::string& color);
-    void set_line_width(unsigned int which, int width);
-    void set_line_style(unsigned int which, Qt::PenStyle style);
-    void set_line_marker(unsigned int which, QwtSymbol::Style marker);
-    void set_line_alpha(unsigned int which, double alpha);
-    void set_color_map(unsigned int which, const int color);
-
-    std::string title();
-    std::string line_label(unsigned int which);
-    std::string line_color(unsigned int which);
-    int line_width(unsigned int which);
-    int line_style(unsigned int which);
-    int line_marker(unsigned int which);
-    double line_alpha(unsigned int which);
-    int color_map(unsigned int which);
-
-    void set_size(int width, int height);
-
-    void set_samp_rate(const double samp_rate);
-    void set_num_rows(double rows);
-    void set_num_cols(double cols);
-
-    double num_rows();
-    double num_cols();
-
-    void set_multiplier(const std::vector<float>& mult);
-    void set_offset(const std::vector<float>& offset);
-
-    void set_intensity_range(float min, float max);
-
-    void enable_menu(bool en);
-    void enable_grid(bool en);
-    void enable_autoscale(bool en);
-    void enable_axis_labels(bool en);
-    void reset();
+    void set_update_time(double t) override;
+    void set_title(const std::string& title) override;
+    void set_line_label(unsigned int which, const std::string& label) override;
+    void set_line_color(unsigned int which, const std::string& color) override;
+    void set_line_width(unsigned int which, int width) override;
+    void set_line_style(unsigned int which, Qt::PenStyle style) override;
+    void set_line_marker(unsigned int which, QwtSymbol::Style marker) override;
+    void set_line_alpha(unsigned int which, double alpha) override;
+    void set_color_map(unsigned int which, const int color) override;
+
+    std::string title() override;
+    std::string line_label(unsigned int which) override;
+    std::string line_color(unsigned int which) override;
+    int line_width(unsigned int which) override;
+    int line_style(unsigned int which) override;
+    int line_marker(unsigned int which) override;
+    double line_alpha(unsigned int which) override;
+    int color_map(unsigned int which) override;
+
+    void set_size(int width, int height) override;
+
+    void set_samp_rate(const double samp_rate) override;
+    void set_num_rows(double rows) override;
+    void set_num_cols(double cols) override;
+
+    double num_rows() override;
+    double num_cols() override;
+
+    void set_multiplier(const std::vector<float>& mult) override;
+    void set_offset(const std::vector<float>& offset) override;
+
+    void set_intensity_range(float min, float max) override;
+
+    void enable_menu(bool en) override;
+    void enable_grid(bool en) override;
+    void enable_autoscale(bool en) override;
+    void enable_axis_labels(bool en) override;
+    void reset() override;
 
     int work(int noutput_items,
              gr_vector_const_void_star& input_items,
diff --git a/gr-qtgui/lib/time_sink_c_impl.h b/gr-qtgui/lib/time_sink_c_impl.h
index 7dfcab501f..903734d53f 100644
--- a/gr-qtgui/lib/time_sink_c_impl.h
+++ b/gr-qtgui/lib/time_sink_c_impl.h
@@ -71,63 +71,63 @@ public:
                      const std::string& name,
                      unsigned int nconnections,
                      QWidget* parent = NULL);
-    ~time_sink_c_impl();
+    ~time_sink_c_impl() override;
 
     bool check_topology(int ninputs, int noutputs) override;
 
-    void exec_();
-    QWidget* qwidget();
+    void exec_() override;
+    QWidget* qwidget() override;
 
 #ifdef ENABLE_PYTHON
-    PyObject* pyqwidget();
+    PyObject* pyqwidget() override;
 #else
     void* pyqwidget();
 #endif
 
-    void set_y_axis(double min, double max);
-    void set_y_label(const std::string& label, const std::string& unit = "");
-    void set_update_time(double t);
-    void set_title(const std::string& title);
-    void set_line_label(unsigned int which, const std::string& label);
-    void set_line_color(unsigned int which, const std::string& color);
-    void set_line_width(unsigned int which, int width);
-    void set_line_style(unsigned int which, int style);
-    void set_line_marker(unsigned int which, int marker);
-    void set_nsamps(const int size);
-    void set_samp_rate(const double samp_rate);
-    void set_line_alpha(unsigned int which, double alpha);
+    void set_y_axis(double min, double max) override;
+    void set_y_label(const std::string& label, const std::string& unit = "") override;
+    void set_update_time(double t) override;
+    void set_title(const std::string& title) override;
+    void set_line_label(unsigned int which, const std::string& label) override;
+    void set_line_color(unsigned int which, const std::string& color) override;
+    void set_line_width(unsigned int which, int width) override;
+    void set_line_style(unsigned int which, int style) override;
+    void set_line_marker(unsigned int which, int marker) override;
+    void set_nsamps(const int size) override;
+    void set_samp_rate(const double samp_rate) override;
+    void set_line_alpha(unsigned int which, double alpha) override;
     void set_trigger_mode(trigger_mode mode,
                           trigger_slope slope,
                           float level,
                           float delay,
                           int channel,
-                          const std::string& tag_key = "");
-
-    std::string title();
-    std::string line_label(unsigned int which);
-    std::string line_color(unsigned int which);
-    int line_width(unsigned int which);
-    int line_style(unsigned int which);
-    int line_marker(unsigned int which);
-    double line_alpha(unsigned int which);
-
-    void set_size(int width, int height);
-
-    int nsamps() const;
-
-    void enable_menu(bool en);
-    void enable_grid(bool en);
-    void enable_autoscale(bool en);
-    void enable_stem_plot(bool en);
-    void enable_semilogx(bool en);
-    void enable_semilogy(bool en);
-    void enable_control_panel(bool en);
-    void enable_tags(unsigned int which, bool en);
-    void enable_tags(bool en);
-    void enable_axis_labels(bool en);
-    void disable_legend();
-
-    void reset();
+                          const std::string& tag_key = "") override;
+
+    std::string title() override;
+    std::string line_label(unsigned int which) override;
+    std::string line_color(unsigned int which) override;
+    int line_width(unsigned int which) override;
+    int line_style(unsigned int which) override;
+    int line_marker(unsigned int which) override;
+    double line_alpha(unsigned int which) override;
+
+    void set_size(int width, int height) override;
+
+    int nsamps() const override;
+
+    void enable_menu(bool en) override;
+    void enable_grid(bool en) override;
+    void enable_autoscale(bool en) override;
+    void enable_stem_plot(bool en) override;
+    void enable_semilogx(bool en) override;
+    void enable_semilogy(bool en) override;
+    void enable_control_panel(bool en) override;
+    void enable_tags(unsigned int which, bool en) override;
+    void enable_tags(bool en) override;
+    void enable_axis_labels(bool en) override;
+    void disable_legend() override;
+
+    void reset() override;
 
     int work(int noutput_items,
              gr_vector_const_void_star& input_items,
diff --git a/gr-qtgui/lib/time_sink_f_impl.h b/gr-qtgui/lib/time_sink_f_impl.h
index 7a22ec8612..d011b2681e 100644
--- a/gr-qtgui/lib/time_sink_f_impl.h
+++ b/gr-qtgui/lib/time_sink_f_impl.h
@@ -70,63 +70,63 @@ public:
                      const std::string& name,
                      unsigned int nconnections,
                      QWidget* parent = NULL);
-    ~time_sink_f_impl();
+    ~time_sink_f_impl() override;
 
     bool check_topology(int ninputs, int noutputs) override;
 
-    void exec_();
-    QWidget* qwidget();
+    void exec_() override;
+    QWidget* qwidget() override;
 
 #ifdef ENABLE_PYTHON
-    PyObject* pyqwidget();
+    PyObject* pyqwidget() override;
 #else
     void* pyqwidget();
 #endif
 
-    void set_y_axis(double min, double max);
-    void set_y_label(const std::string& label, const std::string& unit = "");
-    void set_update_time(double t);
-    void set_title(const std::string& title);
-    void set_line_label(unsigned int which, const std::string& label);
-    void set_line_color(unsigned int which, const std::string& color);
-    void set_line_width(unsigned int which, int width);
-    void set_line_style(unsigned int which, int style);
-    void set_line_marker(unsigned int which, int marker);
-    void set_nsamps(const int size);
-    void set_samp_rate(const double samp_rate);
-    void set_line_alpha(unsigned int which, double alpha);
+    void set_y_axis(double min, double max) override;
+    void set_y_label(const std::string& label, const std::string& unit = "") override;
+    void set_update_time(double t) override;
+    void set_title(const std::string& title) override;
+    void set_line_label(unsigned int which, const std::string& label) override;
+    void set_line_color(unsigned int which, const std::string& color) override;
+    void set_line_width(unsigned int which, int width) override;
+    void set_line_style(unsigned int which, int style) override;
+    void set_line_marker(unsigned int which, int marker) override;
+    void set_nsamps(const int size) override;
+    void set_samp_rate(const double samp_rate) override;
+    void set_line_alpha(unsigned int which, double alpha) override;
     void set_trigger_mode(trigger_mode mode,
                           trigger_slope slope,
                           float level,
                           float delay,
                           int channel,
-                          const std::string& tag_key = "");
-
-    std::string title();
-    std::string line_label(unsigned int which);
-    std::string line_color(unsigned int which);
-    int line_width(unsigned int which);
-    int line_style(unsigned int which);
-    int line_marker(unsigned int which);
-    double line_alpha(unsigned int which);
-
-    void set_size(int width, int height);
-
-    int nsamps() const;
-
-    void enable_menu(bool en);
-    void enable_grid(bool en);
-    void enable_autoscale(bool en);
-    void enable_stem_plot(bool en);
-    void enable_semilogx(bool en);
-    void enable_semilogy(bool en);
-    void enable_control_panel(bool en);
-    void enable_tags(unsigned int which, bool en);
-    void enable_tags(bool en);
-    void enable_axis_labels(bool en);
-    void disable_legend();
-
-    void reset();
+                          const std::string& tag_key = "") override;
+
+    std::string title() override;
+    std::string line_label(unsigned int which) override;
+    std::string line_color(unsigned int which) override;
+    int line_width(unsigned int which) override;
+    int line_style(unsigned int which) override;
+    int line_marker(unsigned int which) override;
+    double line_alpha(unsigned int which) override;
+
+    void set_size(int width, int height) override;
+
+    int nsamps() const override;
+
+    void enable_menu(bool en) override;
+    void enable_grid(bool en) override;
+    void enable_autoscale(bool en) override;
+    void enable_stem_plot(bool en) override;
+    void enable_semilogx(bool en) override;
+    void enable_semilogy(bool en) override;
+    void enable_control_panel(bool en) override;
+    void enable_tags(unsigned int which, bool en) override;
+    void enable_tags(bool en) override;
+    void enable_axis_labels(bool en) override;
+    void disable_legend() override;
+
+    void reset() override;
 
     int work(int noutput_items,
              gr_vector_const_void_star& input_items,
diff --git a/gr-qtgui/lib/vector_sink_f_impl.h b/gr-qtgui/lib/vector_sink_f_impl.h
index 0535bfc7d9..527a2ea39d 100644
--- a/gr-qtgui/lib/vector_sink_f_impl.h
+++ b/gr-qtgui/lib/vector_sink_f_impl.h
@@ -64,59 +64,59 @@ public:
                        const std::string& name,
                        int nconnections,
                        QWidget* parent = NULL);
-    ~vector_sink_f_impl();
+    ~vector_sink_f_impl() override;
 
     bool check_topology(int ninputs, int noutputs) override;
 
-    void exec_();
-    QWidget* qwidget();
+    void exec_() override;
+    QWidget* qwidget() override;
 
 #ifdef ENABLE_PYTHON
-    PyObject* pyqwidget();
+    PyObject* pyqwidget() override;
 #else
     void* pyqwidget();
 #endif
 
-    unsigned int vlen() const;
-    void set_vec_average(const float avg);
-    float vec_average() const;
+    unsigned int vlen() const override;
+    void set_vec_average(const float avg) override;
+    float vec_average() const override;
 
     void set_frequency_range(const double centerfreq, const double bandwidth);
-    void set_x_axis(const double start, const double step);
-    void set_y_axis(double min, double max);
-    void set_ref_level(double ref_level);
-
-    void set_x_axis_label(const std::string& label);
-    void set_y_axis_label(const std::string& label);
-
-    void set_x_axis_units(const std::string& units);
-    void set_y_axis_units(const std::string& units);
-
-    void set_update_time(double t);
-    void set_title(const std::string& title);
-    void set_line_label(unsigned int which, const std::string& label);
-    void set_line_color(unsigned int which, const std::string& color);
-    void set_line_width(unsigned int which, int width);
-    void set_line_style(unsigned int which, int style);
-    void set_line_marker(unsigned int which, int marker);
-    void set_line_alpha(unsigned int which, double alpha);
-
-    std::string title();
-    std::string line_label(unsigned int which);
-    std::string line_color(unsigned int which);
-    int line_width(unsigned int which);
-    int line_style(unsigned int which);
-    int line_marker(unsigned int which);
-    double line_alpha(unsigned int which);
-
-    void set_size(int width, int height);
-
-    void enable_menu(bool en);
-    void enable_grid(bool en);
-    void enable_autoscale(bool en);
-    void clear_max_hold();
-    void clear_min_hold();
-    void reset();
+    void set_x_axis(const double start, const double step) override;
+    void set_y_axis(double min, double max) override;
+    void set_ref_level(double ref_level) override;
+
+    void set_x_axis_label(const std::string& label) override;
+    void set_y_axis_label(const std::string& label) override;
+
+    void set_x_axis_units(const std::string& units) override;
+    void set_y_axis_units(const std::string& units) override;
+
+    void set_update_time(double t) override;
+    void set_title(const std::string& title) override;
+    void set_line_label(unsigned int which, const std::string& label) override;
+    void set_line_color(unsigned int which, const std::string& color) override;
+    void set_line_width(unsigned int which, int width) override;
+    void set_line_style(unsigned int which, int style) override;
+    void set_line_marker(unsigned int which, int marker) override;
+    void set_line_alpha(unsigned int which, double alpha) override;
+
+    std::string title() override;
+    std::string line_label(unsigned int which) override;
+    std::string line_color(unsigned int which) override;
+    int line_width(unsigned int which) override;
+    int line_style(unsigned int which) override;
+    int line_marker(unsigned int which) override;
+    double line_alpha(unsigned int which) override;
+
+    void set_size(int width, int height) override;
+
+    void enable_menu(bool en) override;
+    void enable_grid(bool en) override;
+    void enable_autoscale(bool en) override;
+    void clear_max_hold() override;
+    void clear_min_hold() override;
+    void reset() override;
 
     int work(int noutput_items,
              gr_vector_const_void_star& input_items,
diff --git a/gr-qtgui/lib/waterfall_sink_c_impl.h b/gr-qtgui/lib/waterfall_sink_c_impl.h
index a4dc0d8642..b5d2514964 100644
--- a/gr-qtgui/lib/waterfall_sink_c_impl.h
+++ b/gr-qtgui/lib/waterfall_sink_c_impl.h
@@ -85,54 +85,54 @@ public:
                           const std::string& name,
                           int nconnections,
                           QWidget* parent = NULL);
-    ~waterfall_sink_c_impl();
+    ~waterfall_sink_c_impl() override;
 
     bool check_topology(int ninputs, int noutputs) override;
 
-    void exec_();
-    QWidget* qwidget();
+    void exec_() override;
+    QWidget* qwidget() override;
 
 #ifdef ENABLE_PYTHON
-    PyObject* pyqwidget();
+    PyObject* pyqwidget() override;
 #else
     void* pyqwidget();
 #endif
 
-    void clear_data();
-
-    void set_fft_size(const int fftsize);
-    int fft_size() const;
-    void set_fft_average(const float fftavg);
-    float fft_average() const;
-    void set_fft_window(const gr::fft::window::win_type win);
-    gr::fft::window::win_type fft_window();
-
-    void set_frequency_range(const double centerfreq, const double bandwidth);
-    void set_intensity_range(const double min, const double max);
-
-    void set_update_time(double t);
-    void set_time_per_fft(double t);
-    void set_title(const std::string& title);
-    void set_time_title(const std::string& title);
-    void set_line_label(unsigned int which, const std::string& label);
-    void set_line_alpha(unsigned int which, double alpha);
-    void set_color_map(unsigned int which, const int color);
-
-    std::string title();
-    std::string line_label(unsigned int which);
-    double line_alpha(unsigned int which);
-    int color_map(unsigned int which);
-
-    void set_size(int width, int height);
-
-    void auto_scale();
-    double min_intensity(unsigned int which);
-    double max_intensity(unsigned int which);
-
-    void enable_menu(bool en);
-    void enable_grid(bool en);
-    void disable_legend();
-    void enable_axis_labels(bool en);
+    void clear_data() override;
+
+    void set_fft_size(const int fftsize) override;
+    int fft_size() const override;
+    void set_fft_average(const float fftavg) override;
+    float fft_average() const override;
+    void set_fft_window(const gr::fft::window::win_type win) override;
+    gr::fft::window::win_type fft_window() override;
+
+    void set_frequency_range(const double centerfreq, const double bandwidth) override;
+    void set_intensity_range(const double min, const double max) override;
+
+    void set_update_time(double t) override;
+    void set_time_per_fft(double t) override;
+    void set_title(const std::string& title) override;
+    void set_time_title(const std::string& title) override;
+    void set_line_label(unsigned int which, const std::string& label) override;
+    void set_line_alpha(unsigned int which, double alpha) override;
+    void set_color_map(unsigned int which, const int color) override;
+
+    std::string title() override;
+    std::string line_label(unsigned int which) override;
+    double line_alpha(unsigned int which) override;
+    int color_map(unsigned int which) override;
+
+    void set_size(int width, int height) override;
+
+    void auto_scale() override;
+    double min_intensity(unsigned int which) override;
+    double max_intensity(unsigned int which) override;
+
+    void enable_menu(bool en) override;
+    void enable_grid(bool en) override;
+    void disable_legend() override;
+    void enable_axis_labels(bool en) override;
 
     int work(int noutput_items,
              gr_vector_const_void_star& input_items,
diff --git a/gr-qtgui/lib/waterfall_sink_f_impl.h b/gr-qtgui/lib/waterfall_sink_f_impl.h
index d721cc0416..d2bb016659 100644
--- a/gr-qtgui/lib/waterfall_sink_f_impl.h
+++ b/gr-qtgui/lib/waterfall_sink_f_impl.h
@@ -85,55 +85,55 @@ public:
                           const std::string& name,
                           int nconnections,
                           QWidget* parent = NULL);
-    ~waterfall_sink_f_impl();
+    ~waterfall_sink_f_impl() override;
 
     bool check_topology(int ninputs, int noutputs) override;
 
-    void exec_();
-    QWidget* qwidget();
+    void exec_() override;
+    QWidget* qwidget() override;
 
 #ifdef ENABLE_PYTHON
-    PyObject* pyqwidget();
+    PyObject* pyqwidget() override;
 #else
     void* pyqwidget();
 #endif
 
-    void clear_data();
-
-    void set_fft_size(const int fftsize);
-    int fft_size() const;
-    void set_fft_average(const float fftavg);
-    float fft_average() const;
-    void set_fft_window(const gr::fft::window::win_type win);
-    gr::fft::window::win_type fft_window();
-
-    void set_frequency_range(const double centerfreq, const double bandwidth);
-    void set_intensity_range(const double min, const double max);
-
-    void set_update_time(double t);
-    void set_time_per_fft(double t);
-    void set_title(const std::string& title);
-    void set_time_title(const std::string& title);
-    void set_line_label(unsigned int which, const std::string& label);
-    void set_line_alpha(unsigned int which, double alpha);
-    void set_color_map(unsigned int which, const int color);
-    void set_plot_pos_half(bool half);
-
-    std::string title();
-    std::string line_label(unsigned int which);
-    double line_alpha(unsigned int which);
-    int color_map(unsigned int which);
-
-    void set_size(int width, int height);
-
-    void auto_scale();
-    double min_intensity(unsigned int which);
-    double max_intensity(unsigned int which);
-
-    void enable_menu(bool en);
-    void enable_grid(bool en);
-    void disable_legend();
-    void enable_axis_labels(bool en);
+    void clear_data() override;
+
+    void set_fft_size(const int fftsize) override;
+    int fft_size() const override;
+    void set_fft_average(const float fftavg) override;
+    float fft_average() const override;
+    void set_fft_window(const gr::fft::window::win_type win) override;
+    gr::fft::window::win_type fft_window() override;
+
+    void set_frequency_range(const double centerfreq, const double bandwidth) override;
+    void set_intensity_range(const double min, const double max) override;
+
+    void set_update_time(double t) override;
+    void set_time_per_fft(double t) override;
+    void set_title(const std::string& title) override;
+    void set_time_title(const std::string& title) override;
+    void set_line_label(unsigned int which, const std::string& label) override;
+    void set_line_alpha(unsigned int which, double alpha) override;
+    void set_color_map(unsigned int which, const int color) override;
+    void set_plot_pos_half(bool half) override;
+
+    std::string title() override;
+    std::string line_label(unsigned int which) override;
+    double line_alpha(unsigned int which) override;
+    int color_map(unsigned int which) override;
+
+    void set_size(int width, int height) override;
+
+    void auto_scale() override;
+    double min_intensity(unsigned int which) override;
+    double max_intensity(unsigned int which) override;
+
+    void enable_menu(bool en) override;
+    void enable_grid(bool en) override;
+    void disable_legend() override;
+    void enable_axis_labels(bool en) override;
 
     int work(int noutput_items,
              gr_vector_const_void_star& input_items,
author	Marcus Müller <mmueller@gnuradio.org>	2020-10-30 18:22:33 +0100
committer	mormj <34754695+mormj@users.noreply.github.com>	2020-11-03 14:07:23 -0500
commit	0ddc7dbc95ca6fb4c4a62a3c027104d6dd71fc3b (patch)
tree	b454053fdc123711f3011b8a703de38e1d783ba3 /gr-qtgui
parent	1cfd6287635e339b313e1826fdfda23f474c91c8 (diff)