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+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2008 by Sun Microsystems, Inc.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * $RCSfile: b2dpolypolygonfillrule.hxx,v $
+ * $Revision: 1.4 $
+ *
+ * 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 _BGFX_POLYGON_B2DPOLYPOLYGONFILLRULE_HXX
+#define _BGFX_POLYGON_B2DPOLYPOLYGONFILLRULE_HXX
+
+#include <sal/types.h>
+
+//////////////////////////////////////////////////////////////////////////////
+
+namespace basegfx
+{
+ /** Fill rule to use for poly-polygon filling.
+
+ The fill rule determines which areas are inside, and which are
+ outside the poly-polygon.
+ */
+ enum FillRule
+ {
+ /** Areas, for which a scanline has crossed an odd number of
+ vertices, are regarded 'inside', the remainder 'outside'
+ of the poly-polygon.
+ */
+ FillRule_EVEN_ODD,
+
+ /** For each edge a scanline crosses, a current winding number
+ is updated. Downward edges count +1, upward edges count
+ -1. If the total accumulated winding number for one area
+ is not zero, this area is regarded 'inside', otherwise,
+ 'outside'.
+ */
+ FillRule_NONZERO_WINDING_NUMBER
+ };
+}
+
+#endif /* _BGFX_POLYGON_B2DPOLYPOLYGONFILLRULE_HXX */