Fix CP defaults bug

.. set to 3600 not 360 (!)

.. updated intervals causing warnings when using values
   that were half baked. Now delays recalc() till all
   the parameter intervals are set.

src/CriticalPowerWindow.cpp

@@ -42,7 +42,7 @@
 #include <QXmlSimpleReader>
 
 CriticalPowerWindow::CriticalPowerWindow(const QDir &home, Context *context, bool rangemode) :
-    GcChartWindow(context), _dateRange("{00000000-0000-0000-0000-000000000001}"), home(home), context(context), currentRide(NULL), rangemode(rangemode), isfiltered(false), stale(true), useCustom(false), useToToday(false)
+    GcChartWindow(context), _dateRange("{00000000-0000-0000-0000-000000000001}"), home(home), context(context), currentRide(NULL), rangemode(rangemode), isfiltered(false), stale(true), useCustom(false), useToToday(false), active(false)
 {
     setInstanceName("Critical Power Window");
 
@@ -279,12 +279,12 @@ CriticalPowerWindow::modelChanged()
     // based on advice from our exercise physiologist friends
     // for best results in predicting both W' and CP and providing
     // a reasonable fit for durations < 2mins.
-
+    active = true;
     switch (modelCombo->currentIndex()) {
 
     case 0 : // 2 param model
             anI1SpinBox->setValue(180);
-            anI2SpinBox->setValue(3600);
+            anI2SpinBox->setValue(360);
             aeI1SpinBox->setValue(1800);
             aeI2SpinBox->setValue(3600);
             break;
@@ -297,6 +297,7 @@ CriticalPowerWindow::modelChanged()
             aeI2SpinBox->setValue(3600);
             break;
     }
+    active = false;
 
     // update the plot.
     modelParametersChanged();
@@ -305,6 +306,8 @@ CriticalPowerWindow::modelChanged()
 void
 CriticalPowerWindow::modelParametersChanged()
 {
+    if (active == true) return;
+
     // tell the plot
     cpintPlot->setModel(anI1SpinBox->value(),
                         anI2SpinBox->value(),

src/CriticalPowerWindow.h

@@ -202,6 +202,7 @@ class CriticalPowerWindow : public GcChartWindow
         DateRange custom;
 
         DateSettingsEdit *dateSetting;
+        bool active; // when resetting parameters
 };
 
 #endif // _GC_CriticalPowerWindow_h