auto updating of categorized rendrer symbols

qgis · Oct 7, 2012 · c10920b · c10920b
1 parent 70b7c3b
commit c10920b
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Showing 3 changed files with 17 additions and 0 deletions.
diff --git a/src/core/symbology-ng/qgscategorizedsymbolrendererv2.cpp b/src/core/symbology-ng/qgscategorizedsymbolrendererv2.cpp
@@ -596,3 +596,15 @@ void QgsCategorizedSymbolRendererV2::setSourceColorRamp( QgsVectorColorRampV2* r
   delete mSourceColorRamp;
   mSourceColorRamp = ramp;
 }
+
+void QgsCategorizedSymbolRendererV2::updateSymbols( QgsSymbolV2 * sym )
+{
+  int i = 0;
+  foreach( QgsRendererCategoryV2 cat, mCategories )
+  {
+    QgsSymbolV2* symbol = sym->clone();
+    symbol->setColor( cat.symbol()->color() );
+    updateCategorySymbol( i, symbol );
+    ++i;
+  }
+}
diff --git a/src/core/symbology-ng/qgscategorizedsymbolrendererv2.h b/src/core/symbology-ng/qgscategorizedsymbolrendererv2.h
@@ -84,6 +84,8 @@ class CORE_EXPORT QgsCategorizedSymbolRendererV2 : public QgsFeatureRendererV2
     virtual int capabilities() { return SymbolLevels | RotationField; }
 
     virtual QgsSymbolV2List symbols();
+    //! @note added in 2.0
+    void updateSymbols( QgsSymbolV2 * sym );
 
     const QgsCategoryList& categories() { return mCategories; }
 

diff --git a/src/gui/symbology-ng/qgscategorizedsymbolrendererv2widget.cpp b/src/gui/symbology-ng/qgscategorizedsymbolrendererv2widget.cpp
@@ -164,6 +164,9 @@ void QgsCategorizedSymbolRendererV2Widget::changeCategorizedSymbol()
 
   mCategorizedSymbol = newSymbol;
   updateCategorizedSymbolIcon();
+
+  mRenderer->updateSymbols( mCategorizedSymbol );
+  populateCategories();
 }
 
 void QgsCategorizedSymbolRendererV2Widget::updateCategorizedSymbolIcon()