79 lines
2.9 KiB
C++
79 lines
2.9 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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#ifndef INCLUDED_SLIDESHOW_SOURCE_ENGINE_ACTIVITIES_DISCRETEACTIVITYBASE_HXX
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#define INCLUDED_SLIDESHOW_SOURCE_ENGINE_ACTIVITIES_DISCRETEACTIVITYBASE_HXX
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#include "activitybase.hxx"
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#include <wakeupevent.hxx>
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#include <vector>
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namespace slideshow::internal
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{
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/** Specialization of ActivityBase for discrete time activities.
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A discrete time activity is one where time proceeds in
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discrete steps, i.e. at given time instants.
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*/
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class DiscreteActivityBase : public ActivityBase
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{
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public:
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explicit DiscreteActivityBase( const ActivityParameters& rParms );
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/** Hook for derived classes.
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This method is called for each discrete time
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instant, with nFrame denoting the frame number
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(starting with 0)
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@param nFrame
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Current frame number.
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@param nRepeatCount
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Number of full repeats already performed
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*/
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virtual void perform( sal_uInt32 nFrame, sal_uInt32 nRepeatCount ) const = 0;
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virtual void dispose() override;
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virtual bool perform() override;
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protected:
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virtual void startAnimation() override;
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sal_uInt32 calcFrameIndex( sal_uInt32 nCurrCalls,
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::std::size_t nVectorSize ) const;
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sal_uInt32 calcRepeatCount( sal_uInt32 nCurrCalls,
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::std::size_t nVectorSize ) const;
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::std::size_t getNumberOfKeyTimes() const { return maDiscreteTimes.size(); }
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private:
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WakeupEventSharedPtr mpWakeupEvent;
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const ::std::vector< double > maDiscreteTimes;
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const double mnSimpleDuration;
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sal_uInt32 mnCurrPerformCalls;
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};
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}
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#endif // INCLUDED_SLIDESHOW_SOURCE_ENGINE_ACTIVITIES_DISCRETEACTIVITYBASE_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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