91 lines
3.2 KiB
C++
91 lines
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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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 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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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_SIMPLECONTINUOUSACTIVITYBASE_HXX
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#define INCLUDED_SLIDESHOW_SIMPLECONTINUOUSACTIVITYBASE_HXX
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#include "activitybase.hxx"
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#include <canvas/elapsedtime.hxx>
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namespace slideshow
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{
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namespace internal
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{
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/** Simple, continuous animation.
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This class implements a simple, continuous animation
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without considering repeats or acceleration on the
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perform call. Only useful as a base class, you
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probably want to use ContinuousActivityBase.
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*/
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class SimpleContinuousActivityBase : public ActivityBase
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{
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public:
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SimpleContinuousActivityBase( const ActivityParameters& rParms );
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virtual double calcTimeLag() const;
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virtual bool perform();
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protected:
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/** Hook for derived classes
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This method will be called from perform().
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@param nSimpleTime
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Simple animation time, without repeat,
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acceleration or deceleration applied. This value
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is always in the [0,1] range, the repeat is
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accounted for with the nRepeatCount parameter.
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@param nRepeatCount
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Number of full repeats already performed
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*/
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virtual void simplePerform( double nSimpleTime, sal_uInt32 nRepeatCount ) const = 0;
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virtual void startAnimation();
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private:
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/// Time elapsed since activity started
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::canvas::tools::ElapsedTime maTimer;
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/// Simple duration of activity
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const double mnMinSimpleDuration;
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/// Minimal number of frames to show (see ActivityParameters)
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const sal_uInt32 mnMinNumberOfFrames;
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/// Actual number of frames shown until now.
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sal_uInt32 mnCurrPerformCalls;
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};
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}
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}
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#endif /* INCLUDED_SLIDESHOW_SIMPLECONTINUOUSACTIVITYBASE_HXX */
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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