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/* -*- 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 .
*/
#include <tools/diagnose_ex.h>
#include "continuouskeytimeactivitybase.hxx"
#include <tuple>
namespace slideshow::internal
{
ContinuousKeyTimeActivityBase::ContinuousKeyTimeActivityBase( const ActivityParameters& rParms ) :
SimpleContinuousActivityBase( rParms ),
maLerper( std::vector(rParms.maDiscreteTimes) )
{
ENSURE_OR_THROW( rParms.maDiscreteTimes.size() > 1,
"ContinuousKeyTimeActivityBase::ContinuousKeyTimeActivityBase(): key times vector must have two entries or more" );
ENSURE_OR_THROW( rParms.maDiscreteTimes.front() == 0.0,
"ContinuousKeyTimeActivityBase::ContinuousKeyTimeActivityBase(): key times vector first entry must be zero" );
ENSURE_OR_THROW( rParms.maDiscreteTimes.back() <= 1.0,
"ContinuousKeyTimeActivityBase::ContinuousKeyTimeActivityBase(): key times vector last entry must be less or equal 1" );
}
void ContinuousKeyTimeActivityBase::simplePerform( double nSimpleTime,
sal_uInt32 nRepeatCount ) const
{
// calc simple time from global time - sweep through the
// array multiple times for repeated animations (according to
// SMIL spec).
double fAlpha( calcAcceleratedTime( nSimpleTime ) );
std::ptrdiff_t nIndex;
std::tie(nIndex,fAlpha) = maLerper.lerp(fAlpha);
perform(
nIndex,
fAlpha,
nRepeatCount );
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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