Tag 'classificationattribute' in project file for maplayer export

git-svn-id: http://svn.osgeo.org/qgis/trunk@4866 c8812cc2-4d05-0410-92ff-de0c093fc19c
qgis · Feb 16, 2006 · 935e6b5 · 935e6b5
1 parent 6e5c780
commit 935e6b5
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Showing 2 changed files with 12 additions and 1 deletion.
diff --git a/qgis.dtd b/qgis.dtd
@@ -26,7 +26,7 @@
   --  General Map Layer Properties
   --  (apply to both vector and raster)
   -->
-<!ELEMENT maplayer (layername, datasource, (singlesymbol|singlemarker|graduatedsymbol|continuoussymbol|graduatedmarker|rasterproperties) >
+<!ELEMENT maplayer (layername, datasource, classificationattribute*, (singlesymbol|singlemarker|graduatedsymbol|continuoussymbol|graduatedmarker|rasterproperties) >
 <!ELEMENT layername (#PCDATA) >
 <!ELEMENT datasource (#PCDATA) >
 <!--  Attribute Lists -->

diff --git a/src/gui/qgsvectorlayer.cpp b/src/gui/qgsvectorlayer.cpp
@@ -2442,6 +2442,17 @@ bool QgsVectorLayer::setDataProvider( QString const & provider )
   encoding.appendChild( encodingText );
   layer_node.appendChild( encoding );
 
+  //classification field(s)
+  std::list<int> attributes=m_renderer->classificationAttributes();
+  const std::vector<QgsField> providerFields = dataProvider->fields();
+  for(std::list<int>::const_iterator it = attributes.begin(); it != attributes.end(); ++it)
+    {
+      QDomElement classificationElement = document.createElement("classificationattribute");
+      QDomText classificationText = document.createTextNode(providerFields[*it].name());
+      classificationElement.appendChild(classificationText);
+      layer_node.appendChild(classificationElement);
+    }
+
   // add the display field
 
   QDomElement dField  = document.createElement( "displayfield" );