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*
* Licensed to the Apache Software Foundation (ASF) under one
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* to you under the Apache License, Version 2.0 (the
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*
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_slideshow.hxx"
// must be first
#include <canvas/debug.hxx>
#include <tools/diagnose_ex.h>
#include <canvas/verbosetrace.hxx>
#include <continuouskeytimeactivitybase.hxx>
#include <boost/tuple/tuple.hpp>
#include <algorithm>
#include <iterator>
namespace slideshow
{
namespace internal
{
ContinuousKeyTimeActivityBase::ContinuousKeyTimeActivityBase( const ActivityParameters& rParms ) :
SimpleContinuousActivityBase( rParms ),
maLerper( 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;
boost::tuples::tie(nIndex,fAlpha) = maLerper.lerp(fAlpha);
perform(
nIndex,
fAlpha,
nRepeatCount );
}
}
}