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       1                 :            : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2                 :            : /*
       3                 :            :  * This file is part of the LibreOffice project.
       4                 :            :  *
       5                 :            :  * This Source Code Form is subject to the terms of the Mozilla Public
       6                 :            :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       7                 :            :  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
       8                 :            :  *
       9                 :            :  * This file incorporates work covered by the following license notice:
      10                 :            :  *
      11                 :            :  *   Licensed to the Apache Software Foundation (ASF) under one or more
      12                 :            :  *   contributor license agreements. See the NOTICE file distributed
      13                 :            :  *   with this work for additional information regarding copyright
      14                 :            :  *   ownership. The ASF licenses this file to you under the Apache
      15                 :            :  *   License, Version 2.0 (the "License"); you may not use this file
      16                 :            :  *   except in compliance with the License. You may obtain a copy of
      17                 :            :  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
      18                 :            :  */
      19                 :            : 
      20                 :            : #ifndef INCLUDED_SLIDESHOW_CLIPPINGFUNCTOR_HXX
      21                 :            : #define INCLUDED_SLIDESHOW_CLIPPINGFUNCTOR_HXX
      22                 :            : 
      23                 :            : #include <basegfx/numeric/ftools.hxx>
      24                 :            : #include <basegfx/vector/b2dsize.hxx>
      25                 :            : #include <basegfx/matrix/b2dhommatrix.hxx>
      26                 :            : #include <basegfx/polygon/b2dpolypolygontools.hxx>
      27                 :            : #include <transitioninfo.hxx>
      28                 :            : #include <parametricpolypolygon.hxx>
      29                 :            : 
      30                 :            : 
      31                 :            : namespace slideshow
      32                 :            : {
      33                 :            :     namespace internal
      34                 :            :     {
      35                 :            :         /** Generates the final clipping polygon.
      36                 :            : 
      37                 :            :             This class serves as the functor, which generates the
      38                 :            :             final clipping polygon from a given ParametricPolyPolygon
      39                 :            :             and a TransitionInfo.
      40                 :            : 
      41                 :            :             The ParametricPolyPolygon can be obtained from the
      42                 :            :             ParametricPolyPolygonFactory, see there.
      43                 :            : 
      44                 :            :             The TransitionInfo further parameterizes the polygon
      45                 :            :             generated by the ParametricPolyPolygon, with common
      46                 :            :             modifications such as rotation, flipping, or change of
      47                 :            :             direction. This allows the ParametricPolyPolygonFactory to
      48                 :            :             provide only prototypical shapes, with the ClippingFunctor
      49                 :            :             further customizing the output.
      50                 :            :          */
      51                 :          0 :         class ClippingFunctor
      52                 :            :         {
      53                 :            :         public:
      54                 :            :             ClippingFunctor(
      55                 :            :                 const ParametricPolyPolygonSharedPtr&   rPolygon,
      56                 :            :                 const TransitionInfo&                   rTransitionInfo,
      57                 :            :                 bool                                    bDirectionForward,
      58                 :            :                 bool                                    bModeIn );
      59                 :            : 
      60                 :            :             /** Generate clip polygon.
      61                 :            : 
      62                 :            :                 @param nValue
      63                 :            :                 Value to generate the polygon for. Must be in the
      64                 :            :                 range [0,1].
      65                 :            : 
      66                 :            :                 @param rTargetSize
      67                 :            :                 Size the clip polygon should cover. This is typically
      68                 :            :                 the size of the object the effect is applied on.
      69                 :            :              */
      70                 :            :             ::basegfx::B2DPolyPolygon operator()( double                    nValue,
      71                 :            :                                                   const ::basegfx::B2DSize& rTargetSize );
      72                 :            : 
      73                 :            :         private:
      74                 :            :             ParametricPolyPolygonSharedPtr     mpParametricPoly;
      75                 :            :             ::basegfx::B2DHomMatrix            maStaticTransformation;
      76                 :            :             // AW: Not needed
      77                 :            :             // ::basegfx::B2DPolyPolygon          maBackgroundRect;
      78                 :            :             bool                               mbForwardParameterSweep;
      79                 :            :             bool                               mbSubtractPolygon;
      80                 :            :             const bool                         mbScaleIsotrophically;
      81                 :            :             bool                               mbFlip;
      82                 :            :         };
      83                 :            : 
      84                 :            :     }
      85                 :            : }
      86                 :            : 
      87                 :            : #endif /* INCLUDED_SLIDESHOW_CLIPPINGFUNCTOR_HXX */
      88                 :            : 
      89                 :            : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */