1 /**************************************************************
2  *
3  * Licensed to the Apache Software Foundation (ASF) under one
4  * or more contributor license agreements.  See the NOTICE file
5  * distributed with this work for additional information
6  * regarding copyright ownership.  The ASF licenses this file
7  * to you under the Apache License, Version 2.0 (the
8  * "License"); you may not use this file except in compliance
9  * with the License.  You may obtain a copy of the License at
10  *
11  *   http://www.apache.org/licenses/LICENSE-2.0
12  *
13  * Unless required by applicable law or agreed to in writing,
14  * software distributed under the License is distributed on an
15  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16  * KIND, either express or implied.  See the License for the
17  * specific language governing permissions and limitations
18  * under the License.
19  *
20  *************************************************************/
21 
22 
23 
24 #ifndef INCLUDED_SLIDESHOW_CONTINUOUSKEYTIMEACTIVITYBASE_HXX
25 #define INCLUDED_SLIDESHOW_CONTINUOUSKEYTIMEACTIVITYBASE_HXX
26 
27 #include "simplecontinuousactivitybase.hxx"
28 
29 #include <basegfx/tools/keystoplerp.hxx>
30 #include <vector>
31 
32 
33 namespace slideshow
34 {
35     namespace internal
36     {
37         /** Interpolated, key-times animation.
38 
39         	This class implements an interpolated key-times
40             animation, with continuous time.
41         */
42         class ContinuousKeyTimeActivityBase : public SimpleContinuousActivityBase
43         {
44         public:
45             ContinuousKeyTimeActivityBase( const ActivityParameters& rParms );
46 
47             using SimpleContinuousActivityBase::perform;
48 
49             /** Hook for derived classes
50 
51 	            This method will be called from perform(), already
52                 equipped with the modified time (nMinNumberOfFrames, repeat,
53                 acceleration and deceleration taken into account).
54 
55                 @param nIndex
56                 Current index of the key times/key values.
57 
58                 @param nFractionalIndex
59                 Fractional value from the [0,1] range, specifying
60                 the position between nIndex and nIndex+1.
61 
62                 @param nRepeatCount
63                 Number of full repeats already performed
64             */
65             virtual void perform( sal_uInt32	nIndex,
66                                   double 	   	nFractionalIndex,
67                                   sal_uInt32 	nRepeatCount ) const = 0;
68 
69             /// From SimpleContinuousActivityBase class
70             virtual void simplePerform( double 		nSimpleTime,
71                                         sal_uInt32 	nRepeatCount ) const;
72 
73         private:
74             const ::basegfx::tools::KeyStopLerp maLerper;
75         };
76     }
77 }
78 
79 #endif /* INCLUDED_SLIDESHOW_CONTINUOUSKEYTIMEACTIVITYBASE_HXX */
80