Show Daily Stress on Performance Plot

Since the daily stress values are readily available
from the stress calculator this patch shows them on the
chart to show the make-up of the training that has resulted
in th short term and long term stress scores.

Ideally, we would also show the relative intensity for each day
too so you can view, at a glance, the intensity AND volume of the
ongoing training load -- but the intensity is not readily available
in the calculator or the stress.cache file.

src/PerfPlot.cpp

@@ -28,7 +28,7 @@
 #include "PerfPlot.h"
 #include "StressCalculator.h"
 
-PerfPlot::PerfPlot() : STScurve(NULL), LTScurve(NULL), SBcurve(NULL)
+PerfPlot::PerfPlot() : STScurve(NULL), LTScurve(NULL), SBcurve(NULL), DAYcurve(NULL)
 {
 
 
@@ -36,6 +36,8 @@ PerfPlot::PerfPlot() : STScurve(NULL), LTScurve(NULL), SBcurve(NULL)
     setCanvasBackground(Qt::white);
     setAxisTitle(yLeft, "Stress (BS/Day)");
     setAxisTitle(xBottom, "Time (days)");
+    setAxisTitle(yRight, "Stress (Daily)");
+    enableAxis(yRight, true);
 
     grid = new QwtPlotGrid();
     grid->enableX(false);
@@ -83,6 +85,20 @@ void PerfPlot::plot() {
 
     setAxisScaleDraw(QwtPlot::xBottom, new TimeScaleDraw(startDate));
 
+    if (DAYcurve) {
+	DAYcurve->detach();
+	delete DAYcurve;
+    }
+    DAYcurve = new QwtPlotCurve(tr("Daily"));
+    DAYcurve->setRenderHint(QwtPlotItem::RenderAntialiased);
+    QPen daypen = QPen(Qt::lightGray);
+    daypen.setWidth(1.0);
+    DAYcurve->setPen(daypen);
+    DAYcurve->setStyle(QwtPlotCurve::Sticks);
+    DAYcurve->setData(_sc->getDays()+xmin,_sc->getDAYvalues()+xmin,num);
+    DAYcurve->setYAxis(yRight);
+    DAYcurve->attach(this);
+
     if (STScurve) {
 	STScurve->detach();
 	delete STScurve;

src/PerfPlot.h

@@ -57,7 +57,7 @@ class PerfPlot : public QwtPlot
 
     private:
 	QwtPlotGrid *grid;
-	QwtPlotCurve *STScurve, *LTScurve, *SBcurve;
+	QwtPlotCurve *STScurve, *LTScurve, *SBcurve, *DAYcurve;
 	int days;
 	QDateTime startDate;
 	StressCalculator *_sc;
@@ -68,6 +68,7 @@ class PerfPlot : public QwtPlot
     double getSTS(int i) { return STScurve->y(i - xmin); }
     double getLTS(int i) { return LTScurve->y(i - xmin); }
     double getSB(int i) { return SBcurve->y(i - xmin); }
+    double getDAY(int i) { return DAYcurve->y(i - xmin); }
     int n(void) { return days; }
     int max(void) { return xmax; }
     int min(void) { return xmin; }

src/StressCalculator.h

@@ -57,6 +57,8 @@ class StressCalculator:public QObject {
 	double *getSTSvalues() { return stsvalues.data(); }
 	double *getLTSvalues() { return ltsvalues.data(); }
 	double *getSBvalues() { return sbvalues.data(); }
+    double *getDAYvalues() { return list.data(); }
+
 	// y axis
 	double *getDays() { return xdays.data(); }
 	int n() { return days; }