1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 #if ! defined INCLUDED_SLIDESHOW_SPIRALWIPE_HXX 25 #define INCLUDED_SLIDESHOW_SPIRALWIPE_HXX 26 27 #include "parametricpolypolygon.hxx" 28 #include <basegfx/numeric/ftools.hxx> 29 #include <basegfx/point/b2dpoint.hxx> 30 31 32 namespace slideshow { 33 namespace internal { 34 35 /// Generates a topLeftClockWise or 36 /// bottomLeftCounterClockWise (flipOnYAxis=true) spiral wipe: 37 class SpiralWipe : public ParametricPolyPolygon 38 { 39 public: 40 SpiralWipe( sal_Int32 nElements, bool flipOnYAxis = false ); 41 virtual ::basegfx::B2DPolyPolygon operator () ( double t ); 42 protected: 43 ::basegfx::B2DPolyPolygon calcNegSpiral( double t ) const; 44 45 const sal_Int32 m_elements; 46 const sal_Int32 m_sqrtElements; 47 const bool m_flipOnYAxis; 48 }; 49 50 /// Generates a twoBoxLeft or fourBoxHorizontal wipe: 51 class BoxSnakesWipe : public SpiralWipe 52 { 53 public: BoxSnakesWipe(sal_Int32 nElements,bool fourBox=false)54 BoxSnakesWipe( sal_Int32 nElements, bool fourBox = false ) 55 : SpiralWipe(nElements), m_fourBox(fourBox) {} 56 virtual ::basegfx::B2DPolyPolygon operator () ( double t ); 57 private: 58 const bool m_fourBox; 59 }; 60 61 } 62 } 63 64 #endif /* INCLUDED_SLIDESHOW_SPIRALWIPE_HXX */ 65