Add a contextual pop up menu to the wide graph

Initial button added is to set both Tx and Rx offset.

Tidied up encapsulation issue in CPlotter class.

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@8186 ab8295b8-cf94-4d9e-aec4-7959e3be5d79

plotter.cpp

@@ -10,6 +10,7 @@
 
 CPlotter::CPlotter(QWidget *parent) :                  //CPlotter Constructor
   QFrame {parent},
+  m_set_freq_action {new QAction {tr ("&Set Rx && Tx Offset"), this}},
   m_bScaleOK {false},
   m_bReference {false},
   m_bReference0 {false},
@@ -42,6 +43,19 @@ CPlotter::CPlotter(QWidget *parent) :                  //CPlotter Constructor
   setAutoFillBackground(false);
   setAttribute(Qt::WA_OpaquePaintEvent, false);
   setAttribute(Qt::WA_NoSystemBackground, true);
+
+  // contextual pop up menu
+  setContextMenuPolicy (Qt::CustomContextMenu);
+  connect (this, &QWidget::customContextMenuRequested, [this] (QPoint const& pos) {
+      QMenu menu {this};
+      menu.addAction (m_set_freq_action);
+      auto const& connection = connect (m_set_freq_action, &QAction::triggered, [this, pos] () {
+          int newFreq = FreqfromX (pos.x ()) + .5;
+          emit setFreq1 (newFreq, newFreq);
+        });
+      menu.exec (mapToGlobal (pos));
+      disconnect (connection);
+    });
 }
 
 CPlotter::~CPlotter() { }                                      // Destructor
@@ -629,8 +643,9 @@ void CPlotter::setRxFreq (int x)                               //setRxFreq
 
 int CPlotter::rxFreq() {return m_rxFreq;}                      //rxFreq
 
-void CPlotter::mousePressEvent(QMouseEvent *event)             //mousePressEvent
+void CPlotter::mouseReleaseEvent (QMouseEvent * event)
 {
+  if (Qt::LeftButton == event->button ()) {
     int x=event->x();
     if(x<0) x=0;
     if(x>m_Size.width()) x=m_Size.width();
@@ -650,14 +665,23 @@ void CPlotter::mousePressEvent(QMouseEvent *event)             //mousePressEvent
     int n=1;
     if(ctrl) n+=100;
     emit freezeDecode1(n);
+  }
+  else {
+    event->ignore ();           // let parent handle
+  }
 }
 
-void CPlotter::mouseDoubleClickEvent(QMouseEvent *event)          //mouse2click
+void CPlotter::mouseDoubleClickEvent (QMouseEvent * event)
 {
+  if (Qt::LeftButton == event->button ()) {
     bool ctrl = (event->modifiers() & Qt::ControlModifier);
     int n=2;
     if(ctrl) n+=100;
     emit freezeDecode1(n);
+  }
+  else {
+    event->ignore ();           // let parent handle
+  }
 }
 
 void CPlotter::setNsps(int ntrperiod, int nsps)                    //setNsps

plotter.h

@@ -23,9 +23,11 @@
 
 extern bool g_single_decode;
 
+class QAction;
+
 class CPlotter : public QFrame
 {
-  Q_OBJECT;
+  Q_OBJECT
 
 public:
   explicit CPlotter(QWidget *parent = 0);
@@ -33,7 +35,6 @@ public:
 
   QSize minimumSizeHint() const;
   QSize sizeHint() const;
-  bool    m_bScaleOK;
 
   void draw(float swide[], bool bScroll, bool bRed);		//Update the waterfall
   void SetRunningState(bool running);
@@ -84,15 +85,17 @@ public:
   void drawRed(int ia, int ib, float swide[]);
   void setVHF(bool bVHF);
   void setRedFile(QString fRed);
-
+  bool scaleOK () const {return m_bScaleOK;}
 signals:
   void freezeDecode1(int n);
   void setFreq1(int rxFreq, int txFreq);
 
 protected:
   //re-implemented widget event handlers
-  void paintEvent(QPaintEvent *event);
-  void resizeEvent(QResizeEvent* event);
+  void paintEvent(QPaintEvent *event) override;
+  void resizeEvent(QResizeEvent* event) override;
+  void mouseReleaseEvent (QMouseEvent * event) override;
+  void mouseDoubleClickEvent (QMouseEvent * event) override;
 
 private:
 
@@ -100,6 +103,9 @@ private:
   int XfromFreq(float f);
   float FreqfromX(int x);
 
+  QAction * m_set_freq_action;
+
+  bool    m_bScaleOK;
   bool    m_bCurrent;
   bool    m_bCumulative;
   bool    m_bLinearAvg;
@@ -166,10 +172,6 @@ private:
   qint32  m_tol;
 
   char    m_sutc[6];
-
-private slots:
-  void mousePressEvent(QMouseEvent *event);
-  void mouseDoubleClickEvent(QMouseEvent *event);
 };
 
 extern QVector<QColor> g_ColorTbl;

widegraph.cpp

@@ -322,7 +322,7 @@ void WideGraph::on_spec2dComboBox_currentIndexChanged(const QString &arg1)
   if(arg1=="Reference") {
     ui->widePlot->setReference(true);
   }
-  if(ui->widePlot->m_bScaleOK) ui->widePlot->draw(swide,false,false);
+  if(ui->widePlot->scaleOK ()) ui->widePlot->draw(swide,false,false);
 }
 
 void WideGraph::on_fSplitSpinBox_valueChanged(int n)              //fSplit
@@ -454,7 +454,7 @@ void WideGraph::on_zeroSlider_valueChanged(int value)                 //Zero
 void WideGraph::on_gain2dSlider_valueChanged(int value)               //Gain2
 {
   ui->widePlot->setPlot2dGain(value);
-  if(ui->widePlot->m_bScaleOK) {
+  if(ui->widePlot->scaleOK ()) {
     ui->widePlot->draw(swide,false,false);
     if(m_mode=="QRA64") ui->widePlot->draw(swide,false,true);
   }
@@ -463,7 +463,7 @@ void WideGraph::on_gain2dSlider_valueChanged(int value)               //Gain2
 void WideGraph::on_zero2dSlider_valueChanged(int value)               //Zero2
 {
   ui->widePlot->setPlot2dZero(value);
-  if(ui->widePlot->m_bScaleOK) {
+  if(ui->widePlot->scaleOK ()) {
     ui->widePlot->draw(swide,false,false);
     if(m_mode=="QRA64") ui->widePlot->draw(swide,false,true);
   }