Constraint Result Indicator invisible when not in editable mode

The icon for the constraint result indicator cross/tipp disappears when not in editable mode
this is made by the new method setconstraintresult.

Author: signedav

python/gui/qgsattributeformeditorwidget.sip

@@ -101,6 +101,11 @@ class QgsAttributeFormEditorWidget : QWidget
  Set the constraint status for this widget.
 %End
 
+    void setConstraintResultVisibility( bool editable );
+%Docstring
+ Set the constraint result lable visible or invisible according to the layer editable status
+%End
+
   public slots:
 
     void setIsMixed( bool mixed );

src/gui/qgsattributeform.cpp

@@ -966,6 +966,8 @@ void QgsAttributeForm::synchronizeEnabledState()
     QgsEditorWidgetWrapper *eww = qobject_cast<QgsEditorWidgetWrapper *>( ww );
     if ( eww )
     {
+      mFormEditorWidgets.value( eww->fieldIdx() )->setConstraintResultVisibility( isEditable );
+
       bool enabled = isEditable && fieldIsEditable( eww->fieldIdx() );
       ww->setEnabled( enabled );
 

src/gui/qgsattributeformeditorwidget.cpp

@@ -159,6 +159,11 @@ void QgsAttributeFormEditorWidget::setConstraintStatus( const QString &constrain
   }
 }
 
+void QgsAttributeFormEditorWidget::setConstraintResultVisibility( bool editable )
+{
+  mConstraintResultLabel->setHidden( !editable );
+}
+
 void QgsAttributeFormEditorWidget::setMode( QgsAttributeFormEditorWidget::Mode mode )
 {
   mMode = mode;

src/gui/qgsattributeformeditorwidget.h

@@ -123,6 +123,11 @@ class GUI_EXPORT QgsAttributeFormEditorWidget : public QWidget
      */
     void setConstraintStatus( const QString &constraint, const QString &description, const QString &err, QgsEditorWidgetWrapper::ConstraintResult result );
 
+    /**
+     * Set the constraint result lable visible or invisible according to the layer editable status
+     */
+    void setConstraintResultVisibility( bool editable );
+
   public slots:
 
     /**