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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).
*
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* version 3 along with OpenOffice.org. If not, see
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************************************************************************/
#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 */
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