Save symbol levels state - fix for #2161

git-svn-id: http://svn.osgeo.org/qgis/trunk@12361 c8812cc2-4d05-0410-92ff-de0c093fc19c

Author: wonder

src/core/symbology-ng/qgscategorizedsymbolrendererv2.cpp

@@ -291,6 +291,7 @@ QDomElement QgsCategorizedSymbolRendererV2::save( QDomDocument& doc )
 {
   QDomElement rendererElem = doc.createElement( RENDERER_TAG_NAME );
   rendererElem.setAttribute( "type", "categorizedSymbol" );
+  rendererElem.setAttribute( "symbollevels", ( mUsingSymbolLevels ? "1" : "0" ) );
   rendererElem.setAttribute( "attr", mAttrName );
 
   // categories

src/core/symbology-ng/qgsgraduatedsymbolrendererv2.cpp

@@ -400,6 +400,7 @@ QDomElement QgsGraduatedSymbolRendererV2::save( QDomDocument& doc )
 {
   QDomElement rendererElem = doc.createElement( RENDERER_TAG_NAME );
   rendererElem.setAttribute( "type", "graduatedSymbol" );
+  rendererElem.setAttribute( "symbollevels", ( mUsingSymbolLevels ? "1" : "0" ) );
   rendererElem.setAttribute( "attr", mAttrName );
 
   // ranges

src/core/symbology-ng/qgsrendererv2.cpp

@@ -290,7 +290,11 @@ QgsFeatureRendererV2* QgsFeatureRendererV2::load( QDomElement& element )
   if ( pfCreate == NULL )
     return NULL;
 
-  return pfCreate( element );
+  QgsFeatureRendererV2* r = pfCreate( element );
+  if ( r )
+    r->setUsingSymbolLevels( element.attribute( "symbollevels", "0" ).toInt() );
+
+  return r;
 }
 
 QDomElement QgsFeatureRendererV2::save( QDomDocument& doc )

src/core/symbology-ng/qgssinglesymbolrendererv2.cpp

@@ -92,6 +92,7 @@ QDomElement QgsSingleSymbolRendererV2::save( QDomDocument& doc )
 {
   QDomElement rendererElem = doc.createElement( RENDERER_TAG_NAME );
   rendererElem.setAttribute( "type", "singleSymbol" );
+  rendererElem.setAttribute( "symbollevels", ( mUsingSymbolLevels ? "1" : "0" ) );
 
   QgsSymbolV2Map symbols;
   symbols["0"] = mSymbol;

src/core/symbology-ng/qgssymbollayerv2utils.cpp

@@ -356,6 +356,7 @@ QgsSymbolLayerV2* QgsSymbolLayerV2Utils::loadSymbolLayer( QDomElement& element )
 {
   QString layerClass = element.attribute( "class" );
   bool locked = element.attribute( "locked" ).toInt();
+  int pass = element.attribute( "pass" ).toInt();
 
   // parse properties
   QgsStringMap props = parseProperties( element );
@@ -365,6 +366,7 @@ QgsSymbolLayerV2* QgsSymbolLayerV2Utils::loadSymbolLayer( QDomElement& element )
   if ( layer )
   {
     layer->setLocked( locked );
+    layer->setRenderingPass( pass );
     return layer;
   }
   else
@@ -399,6 +401,7 @@ QDomElement QgsSymbolLayerV2Utils::saveSymbol( QString name, QgsSymbolV2* symbol
     QDomElement layerEl = doc.createElement( "layer" );
     layerEl.setAttribute( "class", layer->layerType() );
     layerEl.setAttribute( "locked", layer->isLocked() );
+    layerEl.setAttribute( "pass", layer->renderingPass() );
 
     if ( subSymbols != NULL && layer->subSymbol() != NULL )
     {