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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: clippingfunctor.hxx,v $
* $Revision: 1.6 $
*
* 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.
*
************************************************************************/
#if ! defined INCLUDED_SLIDESHOW_CLIPPINGFUNCTOR_HXX
#define INCLUDED_SLIDESHOW_CLIPPINGFUNCTOR_HXX
#include <basegfx/numeric/ftools.hxx>
#include <basegfx/vector/b2dsize.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/polygon/b2dpolypolygontools.hxx>
#include <transitioninfo.hxx>
#include <parametricpolypolygon.hxx>
namespace slideshow
{
namespace internal
{
/** Generates the final clipping polygon.
This class serves as the functor, which generates the
final clipping polygon from a given ParametricPolyPolygon
and a TransitionInfo.
The ParametricPolyPolygon can be obtained from the
ParametricPolyPolygonFactory, see there.
The TransitionInfo further parameterizes the polygon
generated by the ParametricPolyPolygon, with common
modifications such as rotation, flipping, or change of
direction. This allows the ParametricPolyPolygonFactory to
provide only prototypical shapes, with the ClippingFunctor
further customizing the output.
*/
class ClippingFunctor
{
public:
ClippingFunctor(
const ParametricPolyPolygonSharedPtr& rPolygon,
const TransitionInfo& rTransitionInfo,
bool bDirectionForward,
bool bModeIn );
/** Generate clip polygon.
@param nValue
Value to generate the polygon for. Must be in the
range [0,1].
@param rTargetSize
Size the clip polygon should cover. This is typically
the size of the object the effect is applied on.
*/
::basegfx::B2DPolyPolygon operator()( double nValue,
const ::basegfx::B2DSize& rTargetSize );
private:
ParametricPolyPolygonSharedPtr mpParametricPoly;
::basegfx::B2DHomMatrix maStaticTransformation;
// AW: Not needed
// ::basegfx::B2DPolyPolygon maBackgroundRect;
bool mbForwardParameterSweep;
bool mbSubtractPolygon;
const bool mbScaleIsotrophically;
bool mbFlip;
};
}
}
#endif /* INCLUDED_SLIDESHOW_CLIPPINGFUNCTOR_HXX */
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