fix performance manager to deal with descending ride list preference.

src/PerformanceManagerWindow.cpp

@@ -104,8 +104,14 @@ void PerformanceManagerWindow::replot(QDir home,QTreeWidgetItem *allRides)
     // calculate the number of days to look at... for now
     // use first ride in allRides to today.  When Season stuff is hooked
     // up, maybe use that, or will allRides reflect only current season?
-    firstRideItem =  (RideItem*) allRides->child(0);
-
+    
+    QVariant isAscending = settings->value(GC_ALLRIDES_ASCENDING,Qt::Checked);
+    if(isAscending.toInt() > 0 ){
+        firstRideItem =  (RideItem*) allRides->child(0);
+    } else {
+        firstRideItem =  (RideItem*) allRides->child(allRides->childCount()-1);
+    }
+    
     if (firstRideItem) {
 
 	newdays = firstRideItem->dateTime.daysTo(now.currentDateTime());

src/StressCalculator.cpp

@@ -29,6 +29,8 @@ StressCalculator::StressCalculator (
 
     lte = (double)exp(-1.0/longTermDays);
     ste = (double)exp(-1.0/shortTermDays);
+    
+    settings = GetApplicationSettings();
 }
 
 
@@ -95,9 +97,21 @@ void StressCalculator::calculateStress(QWidget *mw,
     }
 
     QString ridedatestring;
-    item = (RideItem*) rides->child(0);
+    
+    QVariant isAscending = settings->value(GC_ALLRIDES_ASCENDING,Qt::Checked);
+    
+    if(isAscending.toInt() > 0 ){
+        item = (RideItem*) rides->child(0);
+    } else {
+        item = (RideItem*) rides->child(rides->childCount()-1);
+    }
+
     for (int i = 0; i < rides->childCount(); ++i) {
-	item = (RideItem*) rides->child(i);
+        if(isAscending.toInt() > 0 ){
+            item = (RideItem*) rides->child(i);
+        } else {
+            item = (RideItem*) rides->child(rides->childCount()-1-i);
+        }
 
 	// calculate using rides within date range
 	if (item->dateTime.daysTo(startDate) <= 0 &&
@@ -208,6 +222,7 @@ void StressCalculator::addRideData(double BS, QDateTime rideDate) {
 	calculate(d);
     }
     // do this ride (may be more than one ride in a day)
+    if(daysIndex < 0) return;
     list[daysIndex] += BS;
     calculate(daysIndex);
     lastDaysIndex = daysIndex;

src/StressCalculator.h

@@ -14,6 +14,7 @@
 #include <QList>
 #include <QDateTime>
 #include <QTreeWidgetItem>
+#include "Settings.h"
 
 class StressCalculator:public QObject {
 
@@ -41,6 +42,8 @@ class StressCalculator:public QObject {
 	void calculate(int daysIndex);
 	void addRideData(double BS, QDateTime rideDate);
 
+    boost::shared_ptr<QSettings> settings;
+
     public:
 
 	StressCalculator(QDateTime startDate, QDateTime endDate,