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diff --git a/cppcanvas/source/wrapper/implcanvas.hxx b/cppcanvas/source/wrapper/implcanvas.hxx
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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+#ifndef _CPPCANVAS_IMPLCANVAS_HXX
+#define _CPPCANVAS_IMPLCANVAS_HXX
+
+#include <com/sun/star/uno/Reference.hxx>
+#include <com/sun/star/rendering/ViewState.hpp>
+#include <cppcanvas/canvas.hxx>
+
+#include <boost/optional.hpp>
+
+namespace rtl
+{
+    class OUString;
+}
+
+namespace basegfx
+{
+    class B2DHomMatrix;
+    class B2DPolyPolygon;
+}
+
+namespace com { namespace sun { namespace star { namespace rendering
+{
+    class  XCanvas;
+} } } }
+
+
+/* Definition of ImplCanvas */
+
+namespace cppcanvas
+{
+
+    namespace internal
+    {
+
+        class ImplCanvas : public virtual Canvas
+        {
+        public:
+            ImplCanvas( const ::com::sun::star::uno::Reference<
+                            ::com::sun::star::rendering::XCanvas >& rCanvas );
+            virtual ~ImplCanvas();
+
+            virtual void                             setTransformation( const ::basegfx::B2DHomMatrix& rMatrix );
+            virtual ::basegfx::B2DHomMatrix          getTransformation() const;
+
+            virtual void                             setClip( const ::basegfx::B2DPolyPolygon& rClipPoly );
+            virtual void                             setClip();
+            virtual ::basegfx::B2DPolyPolygon const* getClip() const;
+
+            virtual FontSharedPtr                    createFont( const ::rtl::OUString& rFontName, const double& rCellSize ) const;
+
+            virtual ColorSharedPtr                   createColor() const;
+
+            virtual CanvasSharedPtr                  clone() const;
+
+            virtual void                             clear() const;
+
+            virtual ::com::sun::star::uno::Reference<
+                ::com::sun::star::rendering::XCanvas >      getUNOCanvas() const;
+
+            virtual ::com::sun::star::rendering::ViewState  getViewState() const;
+
+            // take compiler-provided default copy constructor
+            //ImplCanvas(const ImplCanvas&);
+
+        private:
+            // default: disabled assignment
+            ImplCanvas& operator=( const ImplCanvas& );
+
+            mutable ::com::sun::star::rendering::ViewState                                  maViewState;
+            boost::optional<basegfx::B2DPolyPolygon>                                        maClipPolyPolygon;
+            const ::com::sun::star::uno::Reference< ::com::sun::star::rendering::XCanvas >  mxCanvas;
+        };
+
+    }
+}
+
+#endif /* _CPPCANVAS_IMPLCANVAS_HXX */