[FIXED] #11572 ilter Legend By Map Content doesn't maintain point dis…

…placement legend For point vector layer render with 'displacement point', when 'Filter Legend By Map Content' is activated, the legend is not rendered even if it has to be. It's due to QgsPointDisplacementRenderer that embedded the real renderer. The solution proposed in this patch is to get the embedded renderer for QgsPointDisplacementRenderer.
qgis · Nov 7, 2014 · 2597100 · 2597100
1 parent 4e9e9f4
commit 2597100
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/src/core/qgsmaphittest.cpp b/src/core/qgsmaphittest.cpp
@@ -3,6 +3,7 @@
 #include "qgsmaplayerregistry.h"
 #include "qgsrendercontext.h"
 #include "qgsrendererv2.h"
+#include "qgspointdisplacementrenderer.h"
 #include "qgsvectorlayer.h"
 
 
@@ -52,6 +53,12 @@ void QgsMapHitTest::run()
 void QgsMapHitTest::runHitTestLayer( QgsVectorLayer* vl, SymbolV2Set& usedSymbols, QgsRenderContext& context )
 {
   QgsFeatureRendererV2* r = vl->rendererV2();
+
+  // Point displacement case
+  QgsPointDisplacementRenderer* pdr = dynamic_cast<QgsPointDisplacementRenderer*>( r );
+  if ( pdr )
+    r = pdr->embeddedRenderer();
+
   bool moreSymbolsPerFeature = r->capabilities() & QgsFeatureRendererV2::MoreSymbolsPerFeature;
   r->startRender( context, vl->pendingFields() );
   QgsFeature f;