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21 
22 
23 
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_slideshow.hxx"
26 
27 // must be first
28 #include <canvas/debug.hxx>
29 #include <tools/diagnose_ex.h>
30 #include <canvas/verbosetrace.hxx>
31 
32 #include <continuouskeytimeactivitybase.hxx>
33 
34 #include <boost/tuple/tuple.hpp>
35 #include <algorithm>
36 #include <iterator>
37 
38 
39 namespace slideshow
40 {
41     namespace internal
42     {
ContinuousKeyTimeActivityBase(const ActivityParameters & rParms)43         ContinuousKeyTimeActivityBase::ContinuousKeyTimeActivityBase( const ActivityParameters& rParms ) :
44             SimpleContinuousActivityBase( rParms ),
45             maLerper( rParms.maDiscreteTimes )
46         {
47             ENSURE_OR_THROW( rParms.maDiscreteTimes.size() > 1,
48                               "ContinuousKeyTimeActivityBase::ContinuousKeyTimeActivityBase(): key times vector must have two entries or more" );
49             ENSURE_OR_THROW( rParms.maDiscreteTimes.front() == 0.0,
50                               "ContinuousKeyTimeActivityBase::ContinuousKeyTimeActivityBase(): key times vector first entry must be zero" );
51             ENSURE_OR_THROW( rParms.maDiscreteTimes.back() <= 1.0,
52                               "ContinuousKeyTimeActivityBase::ContinuousKeyTimeActivityBase(): key times vector last entry must be less or equal 1" );
53         }
54 
simplePerform(double nSimpleTime,sal_uInt32 nRepeatCount) const55         void ContinuousKeyTimeActivityBase::simplePerform( double 		nSimpleTime,
56                                                            sal_uInt32 	nRepeatCount ) const
57         {
58             // calc simple time from global time - sweep through the
59             // array multiple times for repeated animations (according to
60             // SMIL spec).
61             double fAlpha( calcAcceleratedTime( nSimpleTime ) );
62             std::ptrdiff_t nIndex;
63 
64             boost::tuples::tie(nIndex,fAlpha) = maLerper.lerp(fAlpha);
65 
66             perform(
67                 nIndex,
68                 fAlpha,
69                 nRepeatCount );
70         }
71     }
72 }
73