diff --git a/slideshow/source/engine/slide/layer.cxx b/slideshow/source/engine/slide/layer.cxx
index ae64b7a38773..86864959902b 100644
--- a/slideshow/source/engine/slide/layer.cxx
+++ b/slideshow/source/engine/slide/layer.cxx
@@ -36,7 +36,7 @@
 
 #include <basegfx/range/b2drange.hxx>
 #include <basegfx/range/b1drange.hxx>
-#include <basegfx/range/b2dmultirange.hxx>
+#include <basegfx/range/b2dpolyrange.hxx>
 #include <basegfx/matrix/b2dhommatrix.hxx>
 #include <basegfx/polygon/b2dpolypolygon.hxx>
 
@@ -202,7 +202,8 @@ namespace slideshow
         {
             // TODO(Q1): move this to B2DMultiRange
             if( !rUpdateRange.isEmpty() )
-                maUpdateAreas.addRange( rUpdateRange );
+                maUpdateAreas.appendElement( rUpdateRange,
+                                             basegfx::ORIENTATION_POSITIVE );
         }
 
         void Layer::updateBounds( ShapeSharedPtr const& rShape )
@@ -248,7 +249,7 @@ namespace slideshow
 
         void Layer::clearUpdateRanges()
         {
-            maUpdateAreas.reset();
+            maUpdateAreas.clear();
         }
 
         void Layer::clearContent()
@@ -284,12 +285,12 @@ namespace slideshow
 
         Layer::EndUpdater Layer::beginUpdate()
         {
-            if( !maUpdateAreas.isEmpty() )
+            if( maUpdateAreas.count() )
             {
                 // perform proper layer update. That means, setup proper
                 // clipping, and render each shape that intersects with
                 // the calculated update area
-                ::basegfx::B2DPolyPolygon aClip( maUpdateAreas.getPolyPolygon() );
+                ::basegfx::B2DPolyPolygon aClip( maUpdateAreas.solveCrossovers() );
 
                 // actually, if there happen to be shapes with zero
                 // update area in the maUpdateAreas vector, the
diff --git a/slideshow/source/engine/slide/layer.hxx b/slideshow/source/engine/slide/layer.hxx
index 531d685a1396..e23be76639e8 100644
--- a/slideshow/source/engine/slide/layer.hxx
+++ b/slideshow/source/engine/slide/layer.hxx
@@ -31,7 +31,7 @@
 #ifndef INCLUDED_SLIDESHOW_LAYER_HXX
 #define INCLUDED_SLIDESHOW_LAYER_HXX
 
-#include <basegfx/range/b2dmultirange.hxx>
+#include <basegfx/range/b2dpolyrange.hxx>
 #include <cppcanvas/spritecanvas.hxx>
 
 #include "view.hxx"
@@ -187,7 +187,7 @@ namespace slideshow
                 @return true, if any non-empty addUpdateRange() calls
                 have been made since the last render()/update() call.
              */
-            bool isUpdatePending() const { return !maUpdateAreas.isEmpty(); }
+            bool isUpdatePending() const { return maUpdateAreas.count()!=0; }
 
             /** Update layer bound rect from shape bounds
              */
@@ -297,7 +297,7 @@ namespace slideshow
             typedef ::std::vector< ViewEntry > ViewEntryVector;
 
             ViewEntryVector            maViewEntries;
-            basegfx::B2DMultiRange     maUpdateAreas;
+            basegfx::B2DPolyRange      maUpdateAreas;
             basegfx::B2DRange          maBounds;
             basegfx::B2DRange          maNewBounds;
             const basegfx::B2DRange    maMaxBounds;       // maBounds is clipped against this