For now, we'll allow click-to-decode in ISCAT mode.

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7218 ab8295b8-cf94-4d9e-aec4-7959e3be5d79

doc/user_guide/en/vhf-features.adoc

@@ -142,25 +142,32 @@ _WSJT-X_, Version 1.7.  The protocol is still subject to change, and
 some features of the decoder will likely change.  In most ways
 operation of QRA64 is similar to JT65.
 
-=== Meteor Scatter with MSK144
+=== MSK144
 
-Meteor-scatter QSOs can be made at any time on the VHF bands, at
-distances up to about 2100 km or 1300 miles.  Completing a QSO takes
-longer in the evening than in the morning, longer at 144 MHz than at
-50 MHz, and longer at 2000 km than 1500 km.  But with patience, at
-least 100 Watts, and a single yagi it can usually be done.
+Meteor-scatter QSOs can be made any time on the VHF bands at distances
+up to about 2100 km (1300 miles).  Completing a QSO takes longer in
+the evening than in the morning, longer at higher frequencies, and
+longer at distances close to the upper limit.  But with patience, 
+100 Watts or more, and a single yagi it can usually be done.
 
-- Select *MSK144* from the *Mode* and *Fast* from the *Decode* menu.
+Unlike other _WSJT-X modes, MSK144 decodes received signals in real
+time.  Decoded messages will appear on your screen almost as soon as
+you hear them.
 
-- Set the audio receiving frequency to *Rx 1500 Hz*, frequency
-tolerance to *F Tol 100*, and T/R sequence duration to 15 s.
+- Select *MSK144* from the *Mode* menu.
 
-- MSK144 decodes received signals in real time, so you will see
-decoded messages almost as soon as you hear them.  To match decoding
-depth to your computer's capability, click *Monitor* (if it's not
-already green) to start a receiving sequence and observe the
-percentage of CPU usage displayed on the _Receiving_ label in the
-Status Bar:
+- Select *Fast* from the *Decode* menu.
+
+- Set the audio receiving frequency to *Rx 1500 Hz*.
+
+- Set frequency tolerance to *F Tol 100*.
+
+- Set the *T/R* sequence duration to 15 s.
+
+- To match decoding depth to your computer's capability, click
+*Monitor* (if it's not already green) to start a receiving sequence
+and observe the percentage of CPU usage displayed on the _Receiving_
+label in the Status Bar:
 
 image::Rx_pct_MSK144.png[align="center",alt="MSK144 Percent CPU"]
 
@@ -174,18 +181,23 @@ optimum parameters *Deep* and *F Tol 200*.  Slower machines may not be
 able to keep up at these settings; in that case there will be a modest
 loss in decoding capability for the weakest pings.
 
-- T/R sequences of 15 seconds or less make it sometimes desirable to
-advance your selection of transmitted messages very quickly.  Check
-*Auto Seq* to have the computer make the necessary decisions
-automatically, based on received messages.
+- T/R sequences of 15 seconds or less requires choosing your
+transmitted messages very quickly.  Check *Auto Seq* to have the
+computer make the necessary decisions automatically, based on received
+messages.
 
-- For operation at 144 MHz or above it is advantageous to use the
-short-format messages for Tx3, Tx4, and Tx5.  Check the box labeled
-*Sh* to enable this feature.
+For operation at 144 MHz or above you may find it it helpful to use
+short-format messages for Tx3, Tx4, and Tx5.  These messages are 20 ms
+long, compared with 72 ms for full-length MSK144 messages.  Their
+information content is a 12-bit hash of the two callsigns, rather than
+the callsigns themselves, plus a 4-bit report, acknowledgment, or
+sign-off.  Only the intended recipient can decode short-messages.
 
-IMPORTANT: There is little need to use MSK144 *Sh* messages at 50 or
-70 MHz, where most pings are long enough to support the standard
-MSK144 message length.  
+- Check *Sh* to enable short messages.
+
+IMPORTANT: There is little or no advantage to using MSK144 *Sh*
+messages at 50 or 70 MHz.  At these frequencies most pings are long
+enough to support standard messages.
 
 === Scatter Propagation with ISCAT
 

fastgraph.cpp

@@ -69,8 +69,6 @@ void FastGraph::on_gainSlider_valueChanged(int value)
 {
   ui->fastPlot->setPlotGain(value);
   ui->fastPlot->draw();
-//  qDebug() << "B" << ui->gainSlider->value() << ui->zeroSlider->value()
-//           << ui->greenZeroSlider->value()  << m_ave;
 }
 
 void FastGraph::on_zeroSlider_valueChanged(int value)
@@ -101,6 +99,9 @@ void FastGraph::on_pbAutoLevel_clicked()
   ui->gainSlider->setValue(127-int(2.2*m_ave));
   ui->zeroSlider->setValue(int(m_ave)+20);
   ui->greenZeroSlider->setValue(160-int(3.3*m_ave));
-//  qDebug() << "A" << ui->gainSlider->value() << ui->zeroSlider->value()
-//           << ui->greenZeroSlider->value()  << m_ave;
+}
+
+void FastGraph::setMode(QString mode)                              //setMode
+{
+  ui->fastPlot->setMode(mode);
 }

fastgraph.h

@@ -24,6 +24,7 @@ public:
   void   plotSpec(bool diskData, int UTCdisk);
   void   saveSettings();
   void   setTRperiod(int n);
+  void   setMode(QString mode);
 
 signals:
   void fastPick(int x0, int x1, int y);

fastplot.cpp

@@ -247,9 +247,9 @@ void FPlotter::mouseMoveEvent(QMouseEvent *event)
   update();
 }
 
-/*
 void FPlotter::mousePressEvent(QMouseEvent *event)      //mousePressEvent
 {
+  if(m_mode=="MSK144") return;
   int x=event->x();
   int y=event->y();
   int n=event->button();
@@ -279,4 +279,8 @@ void FPlotter::mousePressEvent(QMouseEvent *event)      //mousePressEvent
   m_x1=x1;
   m_y0=y0;
 }
-*/
+
+void FPlotter::setMode(QString mode)                            //setMode
+{
+  m_mode=mode;
+}

fastplot.h

@@ -36,6 +36,7 @@ public:
   void setGreenZero(int n);
   void setTRperiod(int n);
   void drawScale();
+  void setMode(QString mode);
 
 signals:
   void fastPick (int x0, int x1, int y);
@@ -46,7 +47,7 @@ protected:
 //  void resizeEvent(QResizeEvent* event);
 
 private slots:
-//  void mousePressEvent(QMouseEvent *event);
+  void mousePressEvent(QMouseEvent *event);
   void mouseMoveEvent(QMouseEvent *event);
 
 private:
@@ -61,6 +62,7 @@ private:
   QString m_t;
   QString m_t0;
   QString m_t1;
+  QString m_mode;
 
   double  m_pixPerSecond;
 

mainwindow.cpp

@@ -826,6 +826,7 @@ MainWindow::MainWindow(QDir const& temp_directory, bool multiple,
   }
   statusChanged();
 
+  m_fastGraph->setMode(m_mode);
   m_wideGraph->setMode(m_mode);
   m_wideGraph->setModeTx(m_modeTx);
 
@@ -4307,6 +4308,7 @@ void MainWindow::on_actionEcho_triggered()
 
 void MainWindow::switch_mode (Mode mode)
 {
+  m_fastGraph->setMode(m_mode);
   m_config.frequencies ()->filter (mode);
   auto const& row = m_config.frequencies ()->best_working_frequency (m_freqNominal);
   if (row >= 0) {