fixed change symbol button bug in categorized renderer

Arunmozhi · Arunmozhi · commit ec16eed0f1c1 · 2012-10-06T23:47:03.000+05:30
diff --git a/src/gui/symbology-ng/qgscategorizedsymbolrendererv2widget.cpp b/src/gui/symbology-ng/qgscategorizedsymbolrendererv2widget.cpp
@@ -153,10 +153,16 @@ QgsFeatureRendererV2* QgsCategorizedSymbolRendererV2Widget::renderer()
 
 void QgsCategorizedSymbolRendererV2Widget::changeCategorizedSymbol()
 {
-  QgsSymbolV2SelectorDialog dlg( mCategorizedSymbol, mStyle, mLayer, this );
+  QgsSymbolV2* newSymbol = mCategorizedSymbol->clone();
+
+  QgsSymbolV2SelectorDialog dlg( newSymbol, mStyle, mLayer, this );
   if ( !dlg.exec() )
+  {
+    delete newSymbol;
     return;
+  }
 
+  mCategorizedSymbol = newSymbol;
   updateCategorizedSymbolIcon();
 }
 
