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diff --git a/include/basebmp/drawmodes.hxx b/include/basebmp/drawmodes.hxx
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+++ b/include/basebmp/drawmodes.hxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_BASEBMP_DRAWMODES_HXX
+#define INCLUDED_BASEBMP_DRAWMODES_HXX
+
+/* Definition of Draw modes */
+
+namespace basebmp
+{
+    enum DrawMode
+    {
+        /** Default draw mode, which simply renders pixel in the
+            requested color
+         */
+        DrawMode_PAINT,
+
+        /** XOR draw mode, which XORs each existing pixel value with
+            the new color.
+
+            The result of this XOR operation strongly depends on the
+            underlying pixel format, as it is defined by the bitwise
+            XOR of the (potentially palette-looked-up) color value and
+            the existing pixel content (being it true color or a
+            palette index).
+         */
+        DrawMode_XOR
+    };
+}
+
+#endif /* INCLUDED_BASEBMP_DRAWMODES_HXX */
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */