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diff --git a/basebmp/inc/basebmp/accessor.hxx b/basebmp/inc/basebmp/accessor.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 INCLUDED_BASEBMP_ACCESSOR_HXX
+#define INCLUDED_BASEBMP_ACCESSOR_HXX
+
+#include <vigra/numerictraits.hxx>
+
+namespace basebmp
+{
+
+/** Standard accessor type
+
+    Accesses the iterator values the standard way (i.e. via
+    *operator()/operator[])
+ */
+template<typename ValueType> class StandardAccessor
+{
+public:
+    typedef ValueType value_type;
+
+    // -------------------------------------------------------
+
+    template< class Iterator >
+    value_type operator()(Iterator const& i) const
+    {
+        return *i;
+    }
+
+    template< class Iterator, class Difference >
+    value_type operator()(Iterator const& i, Difference const& diff) const
+    {
+        return i[diff];
+    }
+
+    // -------------------------------------------------------
+
+    template< typename V, class Iterator >
+    void set(V const& value, Iterator const& i) const
+    {
+        *i = vigra::detail::RequiresExplicitCast<value_type>::cast(value);
+    }
+
+    template< typename V, class Iterator, class Difference >
+    void set(V const& value, Iterator const& i, Difference const& diff) const
+    {
+        i[diff] = vigra::detail::RequiresExplicitCast<value_type>::cast(value);
+    }
+};
+
+//-----------------------------------------------------------------------------
+
+/** Non-standard accessor type
+
+    Uses getter/setter methods at the given iterator type, to access
+    the underlying values.
+ */
+template<typename ValueType> class NonStandardAccessor
+{
+public:
+    typedef ValueType value_type;
+
+    // -------------------------------------------------------
+
+    template< class Iterator >
+    value_type operator()(Iterator const& i) const
+    {
+        return i.get();
+    }
+
+    template< class Iterator, class Difference >
+    value_type operator()(Iterator const& i, Difference const& diff) const
+    {
+        return i.get(diff);
+    }
+
+    // -------------------------------------------------------
+
+    template< typename V, class Iterator >
+    void set(V const& value, Iterator const& i) const
+    {
+        i.set( vigra::detail::RequiresExplicitCast<value_type>::cast(value) );
+    }
+
+    template< typename V, class Iterator, class Difference >
+    void set(V const& value, Iterator const& i, Difference const& diff) const
+    {
+        i.set( vigra::detail::RequiresExplicitCast<value_type>::cast(value),
+               diff );
+    }
+};
+
+} // namespace basebmp
+
+#endif /* INCLUDED_BASEBMP_ACCESSOR_HXX */