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Diffstat (limited to 'slideshow/source/inc/eventqueue.hxx')
| -rw-r--r-- | slideshow/source/inc/eventqueue.hxx | 159 |
1 files changed, 0 insertions, 159 deletions
diff --git a/slideshow/source/inc/eventqueue.hxx b/slideshow/source/inc/eventqueue.hxx deleted file mode 100644 index 19f3358f1..000000000 --- a/slideshow/source/inc/eventqueue.hxx +++ /dev/null @@ -1,159 +0,0 @@ -/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ -/************************************************************************* - * - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * Copyright 2000, 2010 Oracle and/or its affiliates. - * - * OpenOffice.org - a multi-platform office productivity suite - * - * This file is part of OpenOffice.org. - * - * OpenOffice.org is free software: you can redistribute it and/or modify - * it under the terms of the GNU Lesser General Public License version 3 - * only, as published by the Free Software Foundation. - * - * OpenOffice.org is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU Lesser General Public License version 3 for more details - * (a copy is included in the LICENSE file that accompanied this code). - * - * You should have received a copy of the GNU Lesser General Public License - * version 3 along with OpenOffice.org. If not, see - * <http://www.openoffice.org/license.html> - * for a copy of the LGPLv3 License. - * - ************************************************************************/ - -#ifndef INCLUDED_SLIDESHOW_EVENTQUEUE_HXX -#define INCLUDED_SLIDESHOW_EVENTQUEUE_HXX - -#include <canvas/elapsedtime.hxx> -#include <osl/mutex.hxx> - -#include "event.hxx" - -#include <boost/noncopyable.hpp> -#include <functional> -#include <queue> -#include <vector> - - -/* Definition of ActivitiesQueue class */ - -namespace slideshow -{ - namespace internal - { - /** This class handles events in a presentation. Events are - time instants where e.g. effects start. - */ - class EventQueue : private ::boost::noncopyable - { - public: - EventQueue( - ::boost::shared_ptr< ::canvas::tools::ElapsedTime > - const & pPresTimer ); - - ~EventQueue(); - - /** Add the given event to the queue. The event is fired - at, or shortly after, its Event::getActivationTime instant. - */ - bool addEvent( const EventSharedPtr& event ); - - /** Add the given event to the queue. The event is fired - at, or shortly after, its Event::getActivationTime instant. - The difference to addEvent() is that events added during - process() are postponed to next process(). - */ - bool addEventForNextRound( const EventSharedPtr& event ); - - /** Another way to control the order of asynchronous event - exeqution. Use this method to schedule events that are to - be executed after all regular events that have no delay, - even when they schedule new regular events without delay. - */ - bool addEventWhenQueueIsEmpty (const EventSharedPtr& rpEvent); - - /** Process the event queue. - - This method executes all events whose timeout has - expired when calling this method (i.e. all events - whose scheduled time is less or equal the current - time). - - Check for the next available event's timeout via - nextTimeout(), or whether the queue is empty - altogether via isEmpty(). - */ - void process(); - - /** Query state of the queue - - @return false, if queue is empty, true otherwise - */ - bool isEmpty() const; - - /** Query timeout for the topmost event in the queue. - - @return Timeout in seconds, until the next event is - ready. The time returned here is relative to the pres - timer (i.e. the timer specified at the EventQueue - constructor). When the queue is empty (i.e. isEmpty() - returns true), the returned value is the highest - representable double value - (::std::numeric_limits<double>::max()). If the topmost - event in the queue is already pending, the timeout - returned here will actually be negative. - */ - double nextTimeout() const; - - /** Remove all pending events from the queue. - */ - void clear(); - - /** Forces an empty queue, firing all events immediately - without minding any times. - @attention do only call from event loop, this calls process_()! - */ - void forceEmpty(); - - /** Gets the queue's timer object. - */ - ::boost::shared_ptr< ::canvas::tools::ElapsedTime > const & - getTimer() const { return mpTimer; } - - private: - mutable ::osl::Mutex maMutex; - - struct EventEntry : public ::std::unary_function<EventEntry, bool> - { - EventSharedPtr pEvent; - double nTime; - - bool operator<( const EventEntry& ) const; // to leverage priority_queue's default compare - - EventEntry( EventSharedPtr const& p, double t ) - : pEvent(p), nTime(t) {} - }; - - typedef ::std::priority_queue< EventEntry > ImplQueueType; - ImplQueueType maEvents; - typedef ::std::vector<EventEntry> EventEntryVector; - EventEntryVector maNextEvents; - ImplQueueType maNextNextEvents; - void process_( bool bFireAllEvents ); - - // perform timing of events via relative time - // measurements. The world time starts, when the - // EventQueue object is created - ::boost::shared_ptr< ::canvas::tools::ElapsedTime > mpTimer; - }; - - } -} -#endif /* INCLUDED_SLIDESHOW_EVENTQUEUE_HXX */ - -/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |