/* -*- 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 .
*/
#ifndef INCLUDED_SLIDESHOW_SOURCE_INC_WAKEUPEVENT_HXX
#define INCLUDED_SLIDESHOW_SOURCE_INC_WAKEUPEVENT_HXX
#include <canvas/elapsedtime.hxx>
#include "event.hxx"
#include "activitiesqueue.hxx"
namespace slideshow::internal {
/** Little helper class, used to set Activities active again
after some sleep period .
Clients can use this class to schedule wakeup events at
the EventQueue , to avoid busy - waiting for the next
discrete time instant .
*/
class WakeupEvent : public Event
{
public :
WakeupEvent(
std::shared_ptr< ::canvas::tools::ElapsedTime > const & pTimeBase,
ActivitiesQueue & rActivityQueue );
WakeupEvent(const WakeupEvent&) = delete ;
WakeupEvent& operator =(const WakeupEvent&) = delete ;
virtual void dispose() override;
virtual bool fire() override;
virtual bool isCharged() const override;
virtual double getActivationTime( double nCurrentTime ) const override;
/// Start the internal timer
void start();
/** Set the next timeout this object should generate.
@ param nextTime
Absolute time , measured from the last start ( ) call ,
when this event should wakeup the Activity again . If
your time is relative , simply call start ( ) just before
every setNextTimeout ( ) call .
*/
void setNextTimeout( double nextTime );
/** Set activity to wakeup.
The activity given here will be reinserted into the
ActivitiesQueue , once the timeout is reached .
*/
void setActivity( const ActivitySharedPtr& rActivity );
private :
::canvas::tools::ElapsedTime maTimer;
double mnNextTime;
ActivitySharedPtr mpActivity;
ActivitiesQueue& mrActivityQueue;
};
typedef ::std::shared_ptr< WakeupEvent > WakeupEventSharedPtr;
} // namespace presentation::internal
#endif // INCLUDED_SLIDESHOW_SOURCE_INC_WAKEUPEVENT_HXX
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(vorverarbeitet am 2026-09-30)
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