Added const to config() method

Author: elpaso

python/gui/editorwidgets/core/qgseditorwidgetwrapper.sip

@@ -16,7 +16,6 @@
 class QgsEditorWidgetWrapper : QObject
 {
 %TypeHeaderCode
-#include <qgseditorwidgetconfig.h>
 #include <qgseditorwidgetwrapper.h>
 %End
 
@@ -42,7 +41,7 @@ class QgsEditorWidgetWrapper : QObject
      *
      * @return the value assigned to this configuration option
      */
-    QVariant config( const QString& key, const QVariant& defaultVal = QVariant() );
+    const QVariant config( const QString& key, const QVariant& defaultVal = QVariant() );
 
     /**
      * Returns the whole config

src/gui/editorwidgets/core/qgswidgetwrapper.cpp

@@ -52,7 +52,7 @@ void QgsWidgetWrapper::setContext( const QgsAttributeEditorContext &context )
   mContext = context;
 }
 
-QVariant QgsWidgetWrapper::config( const QString& key, const QVariant& defaultVal )
+const QVariant QgsWidgetWrapper::config( const QString& key, const QVariant& defaultVal )
 {
   if ( mConfig.contains( key ) )
   {

src/gui/editorwidgets/core/qgswidgetwrapper.h

@@ -87,7 +87,7 @@ class GUI_EXPORT QgsWidgetWrapper : public QObject
      *
      * @return the value assigned to this configuration option
      */
-    QVariant config( const QString& key, const QVariant& defaultVal = QVariant() );
+    const QVariant config( const QString& key, const QVariant& defaultVal = QVariant() );
 
     /**
      * Returns the whole config