133 lines
5.1 KiB
C++
133 lines
5.1 KiB
C++
/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2008 by Sun Microsystems, Inc.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* $RCSfile: activitiesqueue.hxx,v $
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* $Revision: 1.10 $
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#ifndef INCLUDED_SLIDESHOW_ACTIVITIESQUEUE_HXX
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#define INCLUDED_SLIDESHOW_ACTIVITIESQUEUE_HXX
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#include <deque>
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#include "activity.hxx"
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#include "unoviewcontainer.hxx"
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#include <canvas/elapsedtime.hxx>
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#include <boost/shared_ptr.hpp>
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#include <boost/utility.hpp> // for boost::noncopyable
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/* Definition of ActivitiesQueue class */
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namespace slideshow
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{
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namespace internal
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{
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/** This class handles the XSprite updates needed for
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animations, such as moves, scales etc. You can add
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activity objects to this class, which are called in a
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round-robin fashion.
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*/
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class ActivitiesQueue : private ::boost::noncopyable
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{
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public:
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/** Create an ActivitiesQueue.
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@param pPresTimer
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Pointer to global presentation timer. Used for
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adjusting and holding global presentation time.
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*/
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ActivitiesQueue(
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const ::boost::shared_ptr< ::canvas::tools::ElapsedTime >& pPresTimer );
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~ActivitiesQueue();
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/** Add the given activity to the queue.
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*/
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bool addActivity( const ActivitySharedPtr& pActivity );
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/** Process the activities queue.
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This method performs the smallest atomic processing
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possible on the queue (typically, this means one
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activity get processed).
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*/
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void process();
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/** Call all dequeued activities' dequeued() method
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*/
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void processDequeued();
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/** Query state of the queue
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@return false, if queue is empty, true otherwise
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*/
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bool isEmpty() const;
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/** Remove all pending activities from the queue.
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*/
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void clear();
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/** Gets the queue's timer object.
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*/
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::boost::shared_ptr< ::canvas::tools::ElapsedTime > const &
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getTimer() const { return mpTimer; }
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/** returns number of all activities, waiting, reinserted and dequeued
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*/
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std::size_t size() const
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{
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return maCurrentActivitiesWaiting.size() + maCurrentActivitiesReinsert.size() + maDequeuedActivities.size();
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}
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private:
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::boost::shared_ptr< ::canvas::tools::ElapsedTime > mpTimer;
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typedef ::std::deque< ActivitySharedPtr > ActivityQueue;
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ActivityQueue maCurrentActivitiesWaiting; // currently running
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// activities, that still
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// await processing for this
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// round
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ActivityQueue maCurrentActivitiesReinsert; // currently running
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// activities, that are
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// already processed for
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// this round, and wants
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// to be reinserted next
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// round
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ActivityQueue maDequeuedActivities; // This list collects all activities which did not request
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// a reinsertion. After the screen update has been
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// performed, those are notified via dequeued(). This
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// facilitates cleanup actions taking place _after_ the
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// current frame has been displayed.
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};
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}
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}
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#endif /* INCLUDED_SLIDESHOW_ACTIVITIESQUEUE_HXX */
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