SLD parsing: handling ogc:Literal within CssParameter

Author: jgrocha

src/core/symbology-ng/qgssymbollayerutils.cpp

@@ -2566,14 +2566,31 @@ QDomElement QgsSymbolLayerUtils::createSvgParameterElement( QDomDocument &doc, c
 QgsStringMap QgsSymbolLayerUtils::getSvgParameterList( QDomElement &element )
 {
   QgsStringMap params;
+  QString value;
 
   QDomElement paramElem = element.firstChildElement();
   while ( !paramElem.isNull() )
   {
     if ( paramElem.localName() == QLatin1String( "SvgParameter" ) || paramElem.localName() == QLatin1String( "CssParameter" ) )
     {
       QString name = paramElem.attribute( QStringLiteral( "name" ) );
-      QString value = paramElem.firstChild().nodeValue();
+      if (paramElem.firstChild().nodeType() == QDomNode::TextNode)
+      {
+        value = paramElem.firstChild().nodeValue();
+      }
+      else
+      {
+        if (paramElem.firstChild().nodeType() == QDomNode::ElementNode &&
+            paramElem.firstChild().localName() == QLatin1String("Literal"))
+        {
+          QgsDebugMsg(paramElem.firstChild().localName());
+          value = paramElem.firstChild().firstChild().nodeValue();
+        }
+        else
+        {
+          QgsDebugMsg(QString("unexpected child of %1").arg(paramElem.localName()));
+        }
+      }
 
       if ( !name.isEmpty() && !value.isEmpty() )
         params[ name ] = value;