draw strokes correct

dont connect single polygons from createAreaGeometry
draw each polygone for itself

Change-Id: Iff10fc7a221453d48ca042dd556f86b4342b60ef

1 files changed, 15 insertions, 3 deletions

diff --git a/canvas/source/opengl/ogl_canvashelper.cxx b/canvas/source/opengl/ogl_canvashelper.cxx
index 6397f4f0e763..7cdc7e67c4d8 100644
--- a/canvas/source/opengl/ogl_canvashelper.cxx
+++ b/canvas/source/opengl/ogl_canvashelper.cxx
@@ -659,10 +659,22 @@ namespace oglcanvas
                         unoCapeFromCap(strokeAttributes.StartCapType)
                         ));
                 }
-                rAct.maPolyPolys.push_back(aStrokedPolyPoly);
-                rAct.maPolyPolys.back().makeUnique(); // own copy, for thread safety
+                // Note: the generated stroke poly-polygon is NOT free of
+                // self-intersections. Therefore, if we would render it
+                // via OutDev::DrawPolyPolygon(), on/off fill would
+                // generate off areas on those self-intersections.
 
-                rAct.maFunction = &lcl_fillPolyPolygon;
+                for(sal_uInt32 i=0;i<nSize; ++i)
+                {
+                    ::basegfx::B2DPolyPolygon tempStrokedPoly;
+                    tempStrokedPoly.append(aStrokedPolyPoly.getB2DPolygon(i));
+
+                    rAct.maPolyPolys.push_back(tempStrokedPoly);
+                    rAct.maPolyPolys.back().makeUnique(); // own copy, for thread safety
+
+                    rAct.maFunction = &lcl_fillPolyPolygon;
+
+                }
             }
         }