| /************************************************************** |
| * |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| #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; |
| // AW: Not needed |
| // ::basegfx::B2DPolyPolygon maBackgroundRect; |
| bool mbForwardParameterSweep; |
| bool mbSubtractPolygon; |
| const bool mbScaleIsotrophically; |
| bool mbFlip; |
| }; |
| |
| } |
| } |
| |
| #endif /* INCLUDED_SLIDESHOW_CLIPPINGFUNCTOR_HXX */ |
