1 /************************************************************************* 2 * 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * Copyright 2000, 2010 Oracle and/or its affiliates. 6 * 7 * OpenOffice.org - a multi-platform office productivity suite 8 * 9 * This file is part of OpenOffice.org. 10 * 11 * OpenOffice.org is free software: you can redistribute it and/or modify 12 * it under the terms of the GNU Lesser General Public License version 3 13 * only, as published by the Free Software Foundation. 14 * 15 * OpenOffice.org is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU Lesser General Public License version 3 for more details 19 * (a copy is included in the LICENSE file that accompanied this code). 20 * 21 * You should have received a copy of the GNU Lesser General Public License 22 * version 3 along with OpenOffice.org. If not, see 23 * <http://www.openoffice.org/license.html> 24 * for a copy of the LGPLv3 License. 25 * 26 ************************************************************************/ 27 28 #ifndef INCLUDED_SLIDESHOW_ACCUMULATION_HXX 29 #define INCLUDED_SLIDESHOW_ACCUMULATION_HXX 30 31 #include <sal/types.h> 32 #include <rtl/ustring.hxx> 33 34 35 namespace slideshow 36 { 37 namespace internal 38 { 39 /** Generic accumulation. 40 41 This template handles value accumulation across repeated 42 effect runs: returned is the end value times the repeat 43 count, plus the current value. 44 45 @param rEndValue 46 End value of the simple animation. 47 48 @param nRepeatCount 49 Number of completed repeats (i.e. 0 during the first 50 effect run) 51 52 @param rCurrValue 53 Current animation value 54 */ 55 template< typename ValueType > ValueType accumulate( const ValueType& rEndValue, 56 sal_uInt32 nRepeatCount, 57 const ValueType& rCurrValue ) 58 { 59 return nRepeatCount*rEndValue + rCurrValue; 60 } 61 62 /// Specialization for non-addable enums/constant values 63 template<> sal_Int16 accumulate< sal_Int16 >( const sal_Int16&, 64 sal_uInt32, 65 const sal_Int16& rCurrValue ) 66 { 67 // always return rCurrValue, it's forbidden to add enums/constant values... 68 return rCurrValue; 69 } 70 71 /// Specialization for non-addable strings 72 template<> ::rtl::OUString accumulate< ::rtl::OUString >( const ::rtl::OUString&, 73 sal_uInt32, 74 const ::rtl::OUString& rCurrValue ) 75 { 76 // always return rCurrValue, it's impossible to add strings... 77 return rCurrValue; 78 } 79 80 /// Specialization for non-addable bools 81 template<> bool accumulate< bool >( const bool&, 82 sal_uInt32, 83 const bool& bCurrValue ) 84 { 85 // always return bCurrValue, SMIL spec requires to ignore 86 // cumulative behaviour for bools. 87 return bCurrValue; 88 } 89 } 90 } 91 92 #endif /* INCLUDED_SLIDESHOW_ACCUMULATION_HXX */ 93