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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/vector/b2dsize.hxx>
+#include <basegfx/matrix/b2dhommatrix.hxx>
+#include <transitioninfo.hxx>
+#include "parametricpolypolygon.hxx"
+
+
+namespace slideshow::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: */