ENH: missing connection to notify changes on the paramters

Code/Wrappers/QtWidget/otbWrapperQtWidgetChoiceParameter.cxx

@@ -72,6 +72,7 @@ void QtWidgetChoiceParameter::DoCreateWidget()
 
   connect( m_ComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(SetValue(int)) );
   connect( m_ComboBox, SIGNAL(currentIndexChanged(int)), m_StackWidget, SLOT(setCurrentIndex(int)) );
+  connect( m_ComboBox, SIGNAL(currentIndexChanged(int)), GetModel(), SLOT(NotifyUpdate()) );
 
   m_VLayout = new QVBoxLayout;
   m_VLayout->addWidget(m_ComboBox);

Code/Wrappers/QtWidget/otbWrapperQtWidgetFloatParameter.cxx

@@ -34,6 +34,10 @@ QtWidgetFloatParameter::~QtWidgetFloatParameter()
 
 void QtWidgetFloatParameter::DoUpdateGUI()
 {
+  // TODO : search for a better solution
+  m_QDoubleSpinBox->setRange(m_FloatParam->GetMinimumValue(),
+                             m_FloatParam->GetMaximumValue());
+
   bool signalsBlocked = m_QDoubleSpinBox->blockSignals( true );
 
   if (m_FloatParam->HasValue())
@@ -62,6 +66,7 @@ void QtWidgetFloatParameter::DoCreateWidget()
 
   m_QDoubleSpinBox = new QDoubleSpinBox;
   m_QDoubleSpinBox->setDecimals(5);
+  m_QDoubleSpinBox->setSingleStep(0.1);
   m_QDoubleSpinBox->setRange(m_FloatParam->GetMinimumValue(), m_FloatParam->GetMaximumValue());
   m_QDoubleSpinBox->setToolTip(m_FloatParam->GetDescription());
 

Code/Wrappers/QtWidget/otbWrapperQtWidgetParameterGroup.cxx

@@ -74,6 +74,7 @@ void QtWidgetParameterGroup::DoCreateWidget()
         // CheckBox (col 1)
         QCheckBox * checkBox = new QCheckBox;
         connect(checkBox, SIGNAL(clicked(bool)), specificWidget, SLOT(SetActivationState(bool)));
+        connect( checkBox, SIGNAL(clicked(bool)), GetModel(), SLOT(NotifyUpdate()) );
         
         if (param->IsRoot())
            {