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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_SLIDESHOW_SOURCE_ENGINE_TRANSITIONS_CLIPPINGFUNCTOR_HXX
#define INCLUDED_SLIDESHOW_SOURCE_ENGINE_TRANSITIONS_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 parametrizes 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_SOURCE_ENGINE_TRANSITIONS_CLIPPINGFUNCTOR_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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