/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project .
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License , v . 2 . 0 . If a copy of the MPL was not distributed with this
* file , You can obtain one at http : //mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice :
*
* 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 .
*/
#pragma once
#include <sal/types.h>
#include <rtl/ustring.hxx>
namespace slideshow::internal
{
/** Generic accumulation.
This template handles value accumulation across repeated
effect runs : returned is the end value times the repeat
count , plus the current value .
@ param rEndValue
End value of the simple animation .
@ param nRepeatCount
Number of completed repeats ( i . e . 0 during the first
effect run )
@ param rCurrValue
Current animation value
*/
template < typename ValueType > ValueType accumulate( const ValueType& rEndValue,
sal_uInt32 nRepeatCount,
const ValueType& rCurrValue )
{
return nRepeatCount*rEndValue + rCurrValue;
}
/// Specialization for non-addable enums/constant values
template <> sal_Int16 accumulate< sal_Int16 >( const sal_Int16&,
sal_uInt32,
const sal_Int16& rCurrValue )
{
// always return rCurrValue, it's forbidden to add enums/constant values...
return rCurrValue;
}
/// Specialization for non-addable strings
template <> OUString accumulate< OUString >( const OUString&,
sal_uInt32,
const OUString& rCurrValue )
{
// always return rCurrValue, it's impossible to add strings...
return rCurrValue;
}
/// Specialization for non-addable bools
template <> bool accumulate< bool >( const bool &,
sal_uInt32,
const bool & bCurrValue )
{
// always return bCurrValue, SMIL spec requires to ignore
// cumulative behaviour for bools.
return bCurrValue;
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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(vorverarbeitet am 2026-10-01)
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