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 #ifndef INCLUDED_SLIDESHOW_SETACTIVITY_HXX 24 #define INCLUDED_SLIDESHOW_SETACTIVITY_HXX 25 26 // must be first 27 #include <canvas/debug.hxx> 28 #include <tools/diagnose_ex.h> 29 #include <canvas/verbosetrace.hxx> 30 31 #include "animationactivity.hxx" 32 #include "animation.hxx" 33 #include "animatableshape.hxx" 34 #include "shapeattributelayer.hxx" 35 #include "activitiesfactory.hxx" 36 37 namespace slideshow { 38 namespace internal { 39 40 /** Templated setter for animation values 41 42 This template class implements the AnimationActivity 43 interface, but only the perform() and 44 setAttributeLayer() methods are functional. To be used for set animations. 45 46 @see AnimationSetNode. 47 */ 48 template <class AnimationT> 49 class SetActivity : public AnimationActivity 50 { 51 public: 52 typedef ::boost::shared_ptr< AnimationT > AnimationSharedPtrT; 53 typedef typename AnimationT::ValueType ValueT; 54 55 SetActivity( const ActivitiesFactory::CommonParameters& rParms, 56 const AnimationSharedPtrT& rAnimation, 57 const ValueT& rToValue ) 58 : mpAnimation( rAnimation ), 59 mpShape(), 60 mpAttributeLayer(), 61 mpEndEvent( rParms.mpEndEvent ), 62 mrEventQueue( rParms.mrEventQueue ), 63 maToValue( rToValue ), 64 mbIsActive(true) 65 { 66 ENSURE_OR_THROW( mpAnimation, "Invalid animation" ); 67 } 68 69 virtual void dispose() 70 { 71 mbIsActive = false; 72 mpAnimation.reset(); 73 mpShape.reset(); 74 mpAttributeLayer.reset(); 75 // discharge end event: 76 if (mpEndEvent && mpEndEvent->isCharged()) 77 mpEndEvent->dispose(); 78 mpEndEvent.reset(); 79 } 80 81 virtual double calcTimeLag() const 82 { 83 return 0.0; 84 } 85 86 virtual bool perform() 87 { 88 if (! isActive()) 89 return false; 90 // we're going inactive immediately: 91 mbIsActive = false; 92 93 if (mpAnimation && mpAttributeLayer && mpShape) { 94 mpAnimation->start( mpShape, mpAttributeLayer ); 95 (*mpAnimation)(maToValue); 96 mpAnimation->end(); 97 } 98 // fire end event, if any 99 if (mpEndEvent) 100 mrEventQueue.addEvent( mpEndEvent ); 101 102 return false; // don't reinsert 103 } 104 105 virtual bool isActive() const 106 { 107 return mbIsActive; 108 } 109 110 virtual void dequeued() 111 { 112 } 113 114 virtual void end() 115 { 116 perform(); 117 } 118 119 virtual void setTargets( const AnimatableShapeSharedPtr& rShape, 120 const ShapeAttributeLayerSharedPtr& rAttrLayer ) 121 { 122 ENSURE_OR_THROW( rShape, "Invalid shape" ); 123 ENSURE_OR_THROW( rAttrLayer, "Invalid attribute layer" ); 124 125 mpShape = rShape; 126 mpAttributeLayer = rAttrLayer; 127 } 128 129 private: 130 AnimationSharedPtrT mpAnimation; 131 AnimatableShapeSharedPtr mpShape; 132 ShapeAttributeLayerSharedPtr mpAttributeLayer; 133 EventSharedPtr mpEndEvent; 134 EventQueue& mrEventQueue; 135 ValueT maToValue; 136 bool mbIsActive; 137 }; 138 139 template <class AnimationT> AnimationActivitySharedPtr makeSetActivity( 140 const ActivitiesFactory::CommonParameters& rParms, 141 const ::boost::shared_ptr< AnimationT >& rAnimation, 142 const typename AnimationT::ValueType& rToValue ) 143 { 144 return AnimationActivitySharedPtr( 145 new SetActivity<AnimationT>(rParms,rAnimation,rToValue) ); 146 } 147 148 } // namespace internal 149 } // namespace presentation 150 151 #endif /* INCLUDED_SLIDESHOW_SETACTIVITY_HXX */ 152