1*cdf0e10cSrcweir /************************************************************************* 2*cdf0e10cSrcweir * 3*cdf0e10cSrcweir * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4*cdf0e10cSrcweir * 5*cdf0e10cSrcweir * Copyright 2000, 2010 Oracle and/or its affiliates. 6*cdf0e10cSrcweir * 7*cdf0e10cSrcweir * OpenOffice.org - a multi-platform office productivity suite 8*cdf0e10cSrcweir * 9*cdf0e10cSrcweir * This file is part of OpenOffice.org. 10*cdf0e10cSrcweir * 11*cdf0e10cSrcweir * OpenOffice.org is free software: you can redistribute it and/or modify 12*cdf0e10cSrcweir * it under the terms of the GNU Lesser General Public License version 3 13*cdf0e10cSrcweir * only, as published by the Free Software Foundation. 14*cdf0e10cSrcweir * 15*cdf0e10cSrcweir * OpenOffice.org is distributed in the hope that it will be useful, 16*cdf0e10cSrcweir * but WITHOUT ANY WARRANTY; without even the implied warranty of 17*cdf0e10cSrcweir * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18*cdf0e10cSrcweir * GNU Lesser General Public License version 3 for more details 19*cdf0e10cSrcweir * (a copy is included in the LICENSE file that accompanied this code). 20*cdf0e10cSrcweir * 21*cdf0e10cSrcweir * You should have received a copy of the GNU Lesser General Public License 22*cdf0e10cSrcweir * version 3 along with OpenOffice.org. If not, see 23*cdf0e10cSrcweir * <http://www.openoffice.org/license.html> 24*cdf0e10cSrcweir * for a copy of the LGPLv3 License. 25*cdf0e10cSrcweir * 26*cdf0e10cSrcweir ************************************************************************/ 27*cdf0e10cSrcweir 28*cdf0e10cSrcweir #ifndef INCLUDED_SLIDESHOW_ANIMATIONFUNCTION_HXX 29*cdf0e10cSrcweir #define INCLUDED_SLIDESHOW_ANIMATIONFUNCTION_HXX 30*cdf0e10cSrcweir 31*cdf0e10cSrcweir #include <sal/config.h> 32*cdf0e10cSrcweir #include <boost/shared_ptr.hpp> 33*cdf0e10cSrcweir 34*cdf0e10cSrcweir 35*cdf0e10cSrcweir /* Definition of AnimationFunction interface */ 36*cdf0e10cSrcweir 37*cdf0e10cSrcweir namespace slideshow 38*cdf0e10cSrcweir { 39*cdf0e10cSrcweir namespace internal 40*cdf0e10cSrcweir { 41*cdf0e10cSrcweir /** Interface describing an abstract animation function. 42*cdf0e10cSrcweir 43*cdf0e10cSrcweir Use this interface to model time-dependent animation 44*cdf0e10cSrcweir functions of one variable. 45*cdf0e10cSrcweir */ 46*cdf0e10cSrcweir class AnimationFunction 47*cdf0e10cSrcweir { 48*cdf0e10cSrcweir public: 49*cdf0e10cSrcweir virtual ~AnimationFunction() {} 50*cdf0e10cSrcweir 51*cdf0e10cSrcweir /** Operator to calculate function value. 52*cdf0e10cSrcweir 53*cdf0e10cSrcweir This method calculates the function value for the 54*cdf0e10cSrcweir given time instant t. 55*cdf0e10cSrcweir 56*cdf0e10cSrcweir @param t 57*cdf0e10cSrcweir Current time instant, must be in the range [0,1] 58*cdf0e10cSrcweir 59*cdf0e10cSrcweir @return the function value, typically in relative 60*cdf0e10cSrcweir user coordinate space ([0,1] range). 61*cdf0e10cSrcweir */ 62*cdf0e10cSrcweir virtual double operator()( double t ) const = 0; 63*cdf0e10cSrcweir 64*cdf0e10cSrcweir }; 65*cdf0e10cSrcweir 66*cdf0e10cSrcweir typedef ::boost::shared_ptr< AnimationFunction > AnimationFunctionSharedPtr; 67*cdf0e10cSrcweir 68*cdf0e10cSrcweir } 69*cdf0e10cSrcweir } 70*cdf0e10cSrcweir 71*cdf0e10cSrcweir #endif /* INCLUDED_SLIDESHOW_ANIMATIONFUNCTION_HXX */ 72