1*aaef562fSAndrew Rist /************************************************************** 2cdf0e10cSrcweir * 3*aaef562fSAndrew Rist * Licensed to the Apache Software Foundation (ASF) under one 4*aaef562fSAndrew Rist * or more contributor license agreements. See the NOTICE file 5*aaef562fSAndrew Rist * distributed with this work for additional information 6*aaef562fSAndrew Rist * regarding copyright ownership. The ASF licenses this file 7*aaef562fSAndrew Rist * to you under the Apache License, Version 2.0 (the 8*aaef562fSAndrew Rist * "License"); you may not use this file except in compliance 9*aaef562fSAndrew Rist * with the License. You may obtain a copy of the License at 10*aaef562fSAndrew Rist * 11*aaef562fSAndrew Rist * http://www.apache.org/licenses/LICENSE-2.0 12*aaef562fSAndrew Rist * 13*aaef562fSAndrew Rist * Unless required by applicable law or agreed to in writing, 14*aaef562fSAndrew Rist * software distributed under the License is distributed on an 15*aaef562fSAndrew Rist * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16*aaef562fSAndrew Rist * KIND, either express or implied. See the License for the 17*aaef562fSAndrew Rist * specific language governing permissions and limitations 18*aaef562fSAndrew Rist * under the License. 19*aaef562fSAndrew Rist * 20*aaef562fSAndrew Rist *************************************************************/ 21*aaef562fSAndrew Rist 22*aaef562fSAndrew Rist 23cdf0e10cSrcweir 24cdf0e10cSrcweir #ifndef INCLUDED_SLIDESHOW_SIMPLECONTINUOUSACTIVITYBASE_HXX 25cdf0e10cSrcweir #define INCLUDED_SLIDESHOW_SIMPLECONTINUOUSACTIVITYBASE_HXX 26cdf0e10cSrcweir 27cdf0e10cSrcweir #include "activitybase.hxx" 28cdf0e10cSrcweir #include <canvas/elapsedtime.hxx> 29cdf0e10cSrcweir 30cdf0e10cSrcweir namespace slideshow 31cdf0e10cSrcweir { 32cdf0e10cSrcweir namespace internal 33cdf0e10cSrcweir { 34cdf0e10cSrcweir /** Simple, continuous animation. 35cdf0e10cSrcweir 36cdf0e10cSrcweir This class implements a simple, continuous animation 37cdf0e10cSrcweir without considering repeats or acceleration on the 38cdf0e10cSrcweir perform call. Only useful as a base class, you 39cdf0e10cSrcweir probably want to use ContinuousActivityBase. 40cdf0e10cSrcweir */ 41cdf0e10cSrcweir class SimpleContinuousActivityBase : public ActivityBase 42cdf0e10cSrcweir { 43cdf0e10cSrcweir public: 44cdf0e10cSrcweir SimpleContinuousActivityBase( const ActivityParameters& rParms ); 45cdf0e10cSrcweir 46cdf0e10cSrcweir virtual double calcTimeLag() const; 47cdf0e10cSrcweir virtual bool perform(); 48cdf0e10cSrcweir 49cdf0e10cSrcweir protected: 50cdf0e10cSrcweir /** Hook for derived classes 51cdf0e10cSrcweir 52cdf0e10cSrcweir This method will be called from perform(). 53cdf0e10cSrcweir 54cdf0e10cSrcweir @param nSimpleTime 55cdf0e10cSrcweir Simple animation time, without repeat, 56cdf0e10cSrcweir acceleration or deceleration applied. This value 57cdf0e10cSrcweir is always in the [0,1] range, the repeat is 58cdf0e10cSrcweir accounted for with the nRepeatCount parameter. 59cdf0e10cSrcweir 60cdf0e10cSrcweir @param nRepeatCount 61cdf0e10cSrcweir Number of full repeats already performed 62cdf0e10cSrcweir */ 63cdf0e10cSrcweir virtual void simplePerform( double nSimpleTime, sal_uInt32 nRepeatCount ) const = 0; 64cdf0e10cSrcweir 65cdf0e10cSrcweir virtual void startAnimation(); 66cdf0e10cSrcweir 67cdf0e10cSrcweir private: 68cdf0e10cSrcweir /// Time elapsed since activity started 69cdf0e10cSrcweir ::canvas::tools::ElapsedTime maTimer; 70cdf0e10cSrcweir 71cdf0e10cSrcweir /// Simple duration of activity 72cdf0e10cSrcweir const double mnMinSimpleDuration; 73cdf0e10cSrcweir 74cdf0e10cSrcweir /// Minimal number of frames to show (see ActivityParameters) 75cdf0e10cSrcweir const sal_uInt32 mnMinNumberOfFrames; 76cdf0e10cSrcweir 77cdf0e10cSrcweir /// Actual number of frames shown until now. 78cdf0e10cSrcweir sal_uInt32 mnCurrPerformCalls; 79cdf0e10cSrcweir }; 80cdf0e10cSrcweir } 81cdf0e10cSrcweir } 82cdf0e10cSrcweir 83cdf0e10cSrcweir #endif /* INCLUDED_SLIDESHOW_SIMPLECONTINUOUSACTIVITYBASE_HXX */ 84