| /************************************************************** |
| * |
| * 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 |
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| * http://www.apache.org/licenses/LICENSE-2.0 |
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| * software distributed under the License is distributed on an |
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| |
| #ifndef INCLUDED_SLIDESHOW_SIMPLECONTINUOUSACTIVITYBASE_HXX |
| #define INCLUDED_SLIDESHOW_SIMPLECONTINUOUSACTIVITYBASE_HXX |
| |
| #include "activitybase.hxx" |
| #include <canvas/elapsedtime.hxx> |
| |
| namespace slideshow |
| { |
| namespace internal |
| { |
| /** Simple, continuous animation. |
| |
| This class implements a simple, continuous animation |
| without considering repeats or acceleration on the |
| perform call. Only useful as a base class, you |
| probably want to use ContinuousActivityBase. |
| */ |
| class SimpleContinuousActivityBase : public ActivityBase |
| { |
| public: |
| SimpleContinuousActivityBase( const ActivityParameters& rParms ); |
| |
| virtual double calcTimeLag() const; |
| virtual bool perform(); |
| |
| protected: |
| /** Hook for derived classes |
| |
| This method will be called from perform(). |
| |
| @param nSimpleTime |
| Simple animation time, without repeat, |
| acceleration or deceleration applied. This value |
| is always in the [0,1] range, the repeat is |
| accounted for with the nRepeatCount parameter. |
| |
| @param nRepeatCount |
| Number of full repeats already performed |
| */ |
| virtual void simplePerform( double nSimpleTime, sal_uInt32 nRepeatCount ) const = 0; |
| |
| virtual void startAnimation(); |
| |
| private: |
| /// Time elapsed since activity started |
| ::canvas::tools::ElapsedTime maTimer; |
| |
| /// Simple duration of activity |
| const double mnMinSimpleDuration; |
| |
| /// Minimal number of frames to show (see ActivityParameters) |
| const sal_uInt32 mnMinNumberOfFrames; |
| |
| /// Actual number of frames shown until now. |
| sal_uInt32 mnCurrPerformCalls; |
| }; |
| } |
| } |
| |
| #endif /* INCLUDED_SLIDESHOW_SIMPLECONTINUOUSACTIVITYBASE_HXX */ |