41aad59268
Change-Id: I89a56aa3d267f22665769ba073a47d1208d8b55d Reviewed-on: https://gerrit.libreoffice.org/c/core/+/137745 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
121 lines
4.9 KiB
C++
121 lines
4.9 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_INC_ACTIVITIESQUEUE_HXX
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#define INCLUDED_SLIDESHOW_SOURCE_INC_ACTIVITIESQUEUE_HXX
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#include <deque>
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#include "activity.hxx"
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#include <canvas/elapsedtime.hxx>
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#include <memory>
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/* Definition of ActivitiesQueue class */
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namespace slideshow::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
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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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explicit ActivitiesQueue(
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std::shared_ptr< ::canvas::tools::ElapsedTime > pPresTimer );
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~ActivitiesQueue();
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ActivitiesQueue(const ActivitiesQueue&) = delete;
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ActivitiesQueue& operator=(const ActivitiesQueue&) = delete;
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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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/** Add the given activity prioritized last in the queue.
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*/
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bool addTailActivity( 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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std::shared_ptr< ::canvas::tools::ElapsedTime > const &
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getTimer() const { return mpTimer; }
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private:
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std::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 maCurrentTailActivitiesWaiting; // activities that will be
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// processed last in the queue
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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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#endif // INCLUDED_SLIDESHOW_SOURCE_INC_ACTIVITIESQUEUE_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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