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_ANIMATIONEVENTHANDLER_HXX 25cdf0e10cSrcweir #define INCLUDED_SLIDESHOW_ANIMATIONEVENTHANDLER_HXX 26cdf0e10cSrcweir 27cdf0e10cSrcweir #include <boost/shared_ptr.hpp> 28cdf0e10cSrcweir #include "animationnode.hxx" 29cdf0e10cSrcweir 30cdf0e10cSrcweir 31cdf0e10cSrcweir /* Definition of AnimationEventHandler interface */ 32cdf0e10cSrcweir 33cdf0e10cSrcweir namespace slideshow 34cdf0e10cSrcweir { 35cdf0e10cSrcweir namespace internal 36cdf0e10cSrcweir { 37cdf0e10cSrcweir 38cdf0e10cSrcweir /** Interface for handling animation events. 39cdf0e10cSrcweir 40cdf0e10cSrcweir Classes implementing this interface can be added to an 41cdf0e10cSrcweir EventMultiplexer object, and are called from there to 42cdf0e10cSrcweir handle animation state change events. 43cdf0e10cSrcweir */ 44cdf0e10cSrcweir class AnimationEventHandler 45cdf0e10cSrcweir { 46cdf0e10cSrcweir public: ~AnimationEventHandler()47cdf0e10cSrcweir virtual ~AnimationEventHandler() {} 48cdf0e10cSrcweir 49cdf0e10cSrcweir /** Handle the event. 50cdf0e10cSrcweir 51cdf0e10cSrcweir @param rNode 52cdf0e10cSrcweir Animation node which caused this event to fire 53cdf0e10cSrcweir 54cdf0e10cSrcweir @return true, if this handler has successfully 55cdf0e10cSrcweir processed the animation event. When this method 56cdf0e10cSrcweir returns false, possibly other, less prioritized 57cdf0e10cSrcweir handlers are called, too. 58cdf0e10cSrcweir */ 59cdf0e10cSrcweir virtual bool handleAnimationEvent( const AnimationNodeSharedPtr& rNode ) = 0; 60cdf0e10cSrcweir }; 61cdf0e10cSrcweir 62cdf0e10cSrcweir typedef ::boost::shared_ptr< AnimationEventHandler > AnimationEventHandlerSharedPtr; 63cdf0e10cSrcweir 64cdf0e10cSrcweir } 65cdf0e10cSrcweir } 66cdf0e10cSrcweir 67cdf0e10cSrcweir #endif /* INCLUDED_SLIDESHOW_ANIMATIONEVENTHANDLER_HXX */ 68