85 lines
3.4 KiB
C++
85 lines
3.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_SLIDESHOW_SOURCE_ENGINE_TRANSITIONS_CLIPPINGFUNCTOR_HXX
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#define INCLUDED_SLIDESHOW_SOURCE_ENGINE_TRANSITIONS_CLIPPINGFUNCTOR_HXX
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#include <basegfx/vector/b2dsize.hxx>
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#include <basegfx/matrix/b2dhommatrix.hxx>
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#include <transitioninfo.hxx>
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#include "parametricpolypolygon.hxx"
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namespace slideshow::internal
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{
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/** Generates the final clipping polygon.
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This class serves as the functor, which generates the
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final clipping polygon from a given ParametricPolyPolygon
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and a TransitionInfo.
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The ParametricPolyPolygon can be obtained from the
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ParametricPolyPolygonFactory, see there.
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The TransitionInfo further parametrizes the polygon
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generated by the ParametricPolyPolygon, with common
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modifications such as rotation, flipping, or change of
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direction. This allows the ParametricPolyPolygonFactory to
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provide only prototypical shapes, with the ClippingFunctor
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further customizing the output.
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*/
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class ClippingFunctor
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{
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public:
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ClippingFunctor(
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const ParametricPolyPolygonSharedPtr& rPolygon,
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const TransitionInfo& rTransitionInfo,
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bool bDirectionForward,
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bool bModeIn );
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/** Generate clip polygon.
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@param nValue
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Value to generate the polygon for. Must be in the
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range [0,1].
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@param rTargetSize
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Size the clip polygon should cover. This is typically
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the size of the object the effect is applied on.
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*/
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::basegfx::B2DPolyPolygon operator()( double nValue,
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const ::basegfx::B2DSize& rTargetSize );
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private:
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ParametricPolyPolygonSharedPtr mpParametricPoly;
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::basegfx::B2DHomMatrix maStaticTransformation;
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// AW: Not needed
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// ::basegfx::B2DPolyPolygon maBackgroundRect;
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bool mbForwardParameterSweep;
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bool mbSubtractPolygon;
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const bool mbScaleIsotrophically;
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bool mbFlip;
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};
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}
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#endif // INCLUDED_SLIDESHOW_SOURCE_ENGINE_TRANSITIONS_CLIPPINGFUNCTOR_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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