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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_ANIMATIONFUNCTION_HXX
21 : : #define INCLUDED_SLIDESHOW_ANIMATIONFUNCTION_HXX
22 : :
23 : : #include <sal/config.h>
24 : : #include <boost/shared_ptr.hpp>
25 : :
26 : :
27 : : /* Definition of AnimationFunction interface */
28 : :
29 : : namespace slideshow
30 : : {
31 : : namespace internal
32 : : {
33 : : /** Interface describing an abstract animation function.
34 : :
35 : : Use this interface to model time-dependent animation
36 : : functions of one variable.
37 : : */
38 : 0 : class AnimationFunction
39 : : {
40 : : public:
41 : 0 : virtual ~AnimationFunction() {}
42 : :
43 : : /** Operator to calculate function value.
44 : :
45 : : This method calculates the function value for the
46 : : given time instant t.
47 : :
48 : : @param t
49 : : Current time instant, must be in the range [0,1]
50 : :
51 : : @return the function value, typically in relative
52 : : user coordinate space ([0,1] range).
53 : : */
54 : : virtual double operator()( double t ) const = 0;
55 : :
56 : : };
57 : :
58 : : typedef ::boost::shared_ptr< AnimationFunction > AnimationFunctionSharedPtr;
59 : :
60 : : }
61 : : }
62 : :
63 : : #endif /* INCLUDED_SLIDESHOW_ANIMATIONFUNCTION_HXX */
64 : :
65 : : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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