wakeupevent.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 *   Licensed to the Apache Software Foundation (ASF) under one or more
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#include <sal/config.h>
 
#include <algorithm>
 
#include <wakeupevent.hxx>
 
 
namespace slideshow::internal
{
        WakeupEvent::WakeupEvent(
            std::shared_ptr<canvas::tools::ElapsedTime> const & pTimeBase,
            ActivitiesQueue& rActivityQueue ) :
            Event("WakeupEvent"),
            maTimer(pTimeBase),
            mnNextTime(0.0),
            mpActivity(),
            mrActivityQueue( rActivityQueue )
        {
        }
 
        void WakeupEvent::dispose()
        {
            mpActivity.reset();
        }
 
        bool WakeupEvent::fire()
        {
            if( !mpActivity )
                return false;
 
            return mrActivityQueue.addActivity( mpActivity );
        }
 
        bool WakeupEvent::isCharged() const
        {
            // this event won't expire, we fire every time we're
            // re-inserted into the event queue.
            return true;
        }
 
        double WakeupEvent::getActivationTime( double nCurrentTime ) const
        {
            const double nElapsedTime( maTimer.getElapsedTime() );
 
            return ::std::max( nCurrentTime,
                               nCurrentTime - nElapsedTime + mnNextTime );
        }
 
        void WakeupEvent::start()
        {
            // start timer
            maTimer.reset();
        }
 
        void WakeupEvent::setNextTimeout( double rNextTime )
        {
            mnNextTime = rNextTime;
        }
 
        void WakeupEvent::setActivity( const ActivitySharedPtr& rActivity )
        {
            mpActivity = rActivity;
        }
}
 
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