1 files changed, 8 insertions, 1 deletions
diff --git a/drawinglayer/source/processor2d/vclprocessor2d.cxx b/drawinglayer/source/processor2d/vclprocessor2d.cxx
index 19648d472c..4806cde99f 100644
--- a/drawinglayer/source/processor2d/vclprocessor2d.cxx
+++ b/drawinglayer/source/processor2d/vclprocessor2d.cxx
@@ -766,9 +766,13 @@ namespace drawinglayer
             }
             else
             {
+                // remember that we enter a PolygonStrokePrimitive2D decomposition,
+                // used for AA thick line drawing
+                mnPolygonStrokePrimitive2D++;
+
                 mpOutputDevice->DrawPolyPolygon(aLocalPolyPolygon);
 
-                if(mnPolygonStrokePrimitive2D 
+                if(mnPolygonStrokePrimitive2D
                     && getOptionsDrawinglayer().IsAntiAliasing()
                     && (mpOutputDevice->GetAntialiasing() & ANTIALIASING_ENABLE_B2DDRAW))
                 {
@@ -783,6 +787,9 @@ namespace drawinglayer
                         mpOutputDevice->DrawPolyLine(aLocalPolyPolygon.getB2DPolygon(a), 0.0);
                     }
                 }
+
+                // leave PolygonStrokePrimitive2D
+                mnPolygonStrokePrimitive2D--;
             }
         }