Several changes:

    - WCartesianChart: setAxisPadding should also set padding of Y2Axis
    - WidgetSet: preserve Wt parameters from initial request for widgetset reconnect, prevent accumulation

Author: Koen Deforche

src/Wt/Chart/WAxisSliderWidget

@@ -136,6 +136,18 @@ public:
    */
   bool isLabelsEnabled() const { return labelsEnabled_; }
 
+  /*! \brief Set whether the Y axis of the associated chart should be updated to fit the series.
+   *
+   * Y axis zoom is enabled by default.
+   */
+  void setYAxisZoomEnabled(bool enabled = true);
+
+  /*! \brief Returns whether the Y axis of the associated chart should be updated to fit the series.
+   *
+   * \sa setYAxisZoomEnabled()
+   */
+  bool isYAxisZoomEnabled() const { return yAxisZoomEnabled_; }
+
   WDataSeries *series() { return series_; }
   const WDataSeries *series() const { return series_; }
 
@@ -160,6 +172,7 @@ private:
   WBrush selectedAreaBrush_;
   bool autoPadding_;
   bool labelsEnabled_;
+  bool yAxisZoomEnabled_;
   int padding_[4];
 
   WJavaScriptHandle<WTransform> transform_;

src/Wt/Chart/WAxisSliderWidget.C

@@ -7,6 +7,7 @@
 #include "Wt/Chart/WAxisSliderWidget"
 
 #include "Wt/WApplication"
+#include "Wt/WBoostAny"
 #include "Wt/WBrush"
 #include "Wt/WColor"
 #include "Wt/WJavaScript"
@@ -34,7 +35,8 @@ WAxisSliderWidget::WAxisSliderWidget(WContainerWidget *parent)
     background_(WColor(230, 230, 230)),
     selectedAreaBrush_(WColor(255, 255, 255)),
     autoPadding_(false),
-    labelsEnabled_(true)
+    labelsEnabled_(true),
+    yAxisZoomEnabled_(true)
 {
   init();
 }
@@ -47,7 +49,8 @@ WAxisSliderWidget::WAxisSliderWidget(WDataSeries *series, WContainerWidget *pare
     background_(WColor(230, 230, 230)),
     selectedAreaBrush_(WColor(255, 255, 255)),
     autoPadding_(false),
-    labelsEnabled_(true)
+    labelsEnabled_(true),
+    yAxisZoomEnabled_(true)
 {
   init();
 }
@@ -187,6 +190,14 @@ void WAxisSliderWidget::setLabelsEnabled(bool enabled)
   }
 }
 
+void WAxisSliderWidget::setYAxisZoomEnabled(bool enabled)
+{
+  if (enabled != yAxisZoomEnabled_) {
+    yAxisZoomEnabled_ = enabled;
+    update();
+  }
+}
+
 WRectF WAxisSliderWidget::hv(const WRectF& rect) const
 {
   bool horizontal = chart()->orientation() == Vertical; // yes, vertical chart means horizontal X axis slider
@@ -469,7 +480,8 @@ void WAxisSliderWidget::paintEvent(WPaintDevice *paintDevice)
        "transform:" << transform_.jsRef() << ","
        "rect:function(){return " << rect.jsRef() << "},"
        "drawArea:" << drawArea.jsRef() << ","
-       "series:" << chart()->seriesIndexOf(*series_) <<
+       "series:" << chart()->seriesIndexOf(*series_) << ","
+       "updateYAxis:" << asString(yAxisZoomEnabled_).toUTF8() <<
        "});";
     doJavaScript(ss.str());
   }

src/Wt/Chart/WCartesianChart.C

@@ -1751,7 +1751,7 @@ void WCartesianChart::IconWidget::paintEvent(Wt::WPaintDevice *paintDevice)
 void WCartesianChart::setAxisPadding(int padding)
 {
   axisPadding_ = padding;
-  for (int i = 0; i < 2; ++i) {
+  for (int i = 0; i < 3; ++i) {
     axes_[i]->setPadding(padding);
   }
 }

src/Wt/Dbo/DbAction_impl.h

@@ -69,7 +69,7 @@ void InitSchema::actId(ptr<C>& value, const std::string& name, int size,
 		    "Wt::Dbo::dbo_traits<C>::surrogateIdField() != 0");
 
   idField_ = true;
-  actPtr(PtrRef<C>(value, name, size, fkConstraints));
+  actPtr(PtrRef<C>(value, name, fkConstraints));
   idField_ = false;
 }
 
@@ -326,7 +326,7 @@ template<class D>
 void LoadDbAction<C>::actId(ptr<D>& value, const std::string& name, int size,
 			    int fkConstraints)
 { 
-  actPtr(PtrRef<D>(value, name, size, fkConstraints));
+  actPtr(PtrRef<D>(value, name, fkConstraints));
 
   dbo_.setId(value);
 }
@@ -552,7 +552,7 @@ template<class D>
 void SaveDbAction<C>::actId(ptr<D>& value, const std::string& name, int size,
 			   int fkConstraints)
 { 
-  actPtr(PtrRef<D>(value, name, size, fkConstraints));
+  actPtr(PtrRef<D>(value, name, fkConstraints));
 
   /* Later, we may also want to support id changes ? */
   if (pass_ == Self && isInsert_)
@@ -580,7 +580,7 @@ template<class C>
 void TransactionDoneAction::actId(ptr<C>& value, const std::string& name,
 				  int size, int fkConstraints)
 { 
-  actPtr(PtrRef<C>(value, name, size, fkConstraints));
+  actPtr(PtrRef<C>(value, name, fkConstraints));
 }
 
 template<typename V>
@@ -641,7 +641,7 @@ template<class C>
 void SessionAddAction::actId(ptr<C>& value, const std::string& name,
 			     int size, int fkConstraints)
 { 
-  actPtr(PtrRef<C>(value, name, size, fkConstraints));
+  actPtr(PtrRef<C>(value, name, fkConstraints));
 }
 
 template<typename V>
@@ -686,7 +686,7 @@ template<class C>
 void SetReciproceAction::actId(ptr<C>& value, const std::string& name,
 			       int size, int fkConstraints)
 { 
-  actPtr(PtrRef<C>(value, name, size, fkConstraints));
+  actPtr(PtrRef<C>(value, name, fkConstraints));
 }
 
 template<typename V>
@@ -767,7 +767,7 @@ template<class C>
 void ToAnysAction::actId(ptr<C>& value, const std::string& name,
 			 int size, int fkConstraints)
 { 
-  actPtr(PtrRef<C>(value, name, size, fkConstraints));
+  actPtr(PtrRef<C>(value, name, fkConstraints));
 }
 
 template<typename V>
@@ -849,7 +849,7 @@ template<class C>
 void FromAnyAction::actId(ptr<C>& value, const std::string& name, int size,
 			  int fkConstraints)
 {
-  actPtr(PtrRef<C>(value, name, size, fkConstraints));
+  actPtr(PtrRef<C>(value, name, fkConstraints));
 }
 
 template<typename V>

src/Wt/Dbo/Field

@@ -316,7 +316,7 @@ void field(Action& action, V& value, const std::string& name, int size = -1);
  * this method also to allow foreign key constraints.
  */
 template <class Action, class C>
-void field(Action& action, ptr<C>& value, const std::string& name);
+void field(Action& action, ptr<C>& value, const std::string& name, int size = -1);
 
 /*! \brief Maps the "One"-side (foreign key) of a ManyToOne or OneToOne relation.
  *

src/Wt/Dbo/Field_impl.h

@@ -183,7 +183,7 @@ void field(A& action, V& value, const std::string& name, int size)
 }
 
 template <class A, class C>
-void field(A& action, ptr<C>& value, const std::string& name)
+void field(A& action, ptr<C>& value, const std::string& name, int)
 {
   action.actPtr(PtrRef<C>(value, name, 0));
 }

src/Wt/WStringUtil.C

@@ -291,6 +291,7 @@ std::string fromUTF8(const std::string& s, CharEncoding encoding)
 #ifndef WT_NO_STD_WSTRING
     case LocalEncoding: return narrow(fromUTF8(s));
 #else
+    case DefaultEncoding:
     case LocalEncoding:
       {
         // You may want to rewrite this for your system

src/http/Configuration.C

@@ -111,7 +111,8 @@ void Configuration::createOptions(po::options_description& options,
 
     ("accesslog",
      po::value<std::string>(&accessLog_),
-     "access log file (defaults to stdout)")
+     "access log file (defaults to stdout), "
+     "to disable access logging completely, use --accesslog=-")
 
     ("no-compression",
      "do not use compression")

src/js/WAxisSliderWidget.js

@@ -10,7 +10,7 @@ WT_DECLARE_WT_MEMBER
 (1, JavaScriptConstructor, "WAxisSliderWidget",
  function(APP, widget, target, config) {
    // draw area: inside of the margins of the widget
-   // config: { chart:, rect:(function), transform:, drawArea:, series: }
+   // config: { chart:, rect:(function), transform:, drawArea:, series:, updateYAxis: }
    var rqAnimFrame = (function(){
       return window.requestAnimationFrame       ||
 	     window.webkitRequestAnimationFrame ||
@@ -177,7 +177,7 @@ WT_DECLARE_WT_MEMBER
        var drawArea = config.drawArea;
        var u = transform[4] / drawArea[2];
        var v = transform[0] + u;
-       config.chart.setXRange(config.series, u, v);
+       config.chart.setXRange(config.series, u, v, config.updateYAxis);
      }
    }