59 lines
2.5 KiB
C++
59 lines
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <comphelper/diagnose_ex.hxx>
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#include "continuouskeytimeactivitybase.hxx"
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#include <tuple>
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namespace slideshow::internal
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{
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ContinuousKeyTimeActivityBase::ContinuousKeyTimeActivityBase( const ActivityParameters& rParms ) :
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SimpleContinuousActivityBase( rParms ),
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maLerper( std::vector(rParms.maDiscreteTimes) )
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{
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ENSURE_OR_THROW( rParms.maDiscreteTimes.size() > 1,
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"ContinuousKeyTimeActivityBase::ContinuousKeyTimeActivityBase(): key times vector must have two entries or more" );
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ENSURE_OR_THROW( rParms.maDiscreteTimes.front() == 0.0,
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"ContinuousKeyTimeActivityBase::ContinuousKeyTimeActivityBase(): key times vector first entry must be zero" );
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ENSURE_OR_THROW( rParms.maDiscreteTimes.back() <= 1.0,
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"ContinuousKeyTimeActivityBase::ContinuousKeyTimeActivityBase(): key times vector last entry must be less or equal 1" );
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}
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void ContinuousKeyTimeActivityBase::simplePerform( double nSimpleTime,
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sal_uInt32 nRepeatCount ) const
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{
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// calc simple time from global time - sweep through the
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// array multiple times for repeated animations (according to
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// SMIL spec).
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double fAlpha( calcAcceleratedTime( nSimpleTime ) );
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std::ptrdiff_t nIndex;
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std::tie(nIndex,fAlpha) = maLerper.lerp(fAlpha);
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perform(
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nIndex,
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fAlpha,
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nRepeatCount );
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}
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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