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/*************************************************************************
*
* OpenOffice.org - a multi-platform office productivity suite
*
* $RCSfile: clippingfunctor.hxx,v $
*
* $Revision: 1.4 $
*
* last change: $Author: kz $ $Date: 2006-12-13 15:38:41 $
*
* The Contents of this file are made available subject to
* the terms of GNU Lesser General Public License Version 2.1.
*
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2005 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library 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 for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
************************************************************************/
#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;
::basegfx::B2DPolyPolygon maBackgroundRect;
bool mbForwardParameterSweep;
bool mbSubtractPolygon;
const bool mbScaleIsotrophically;
bool mbFlip;
};
}
}
#endif /* INCLUDED_SLIDESHOW_CLIPPINGFUNCTOR_HXX */
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