/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project .
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License , v . 2 . 0 . If a copy of the MPL was not distributed with this
* file , You can obtain one at http : //mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice :
*
* Licensed to the Apache Software Foundation ( ASF ) under one or more
* contributor license agreements . See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership . The ASF licenses this file to you under the Apache
* License , Version 2 . 0 ( the " License " ) ; you may not use this file
* except in compliance with the License . You may obtain a copy of
* the License at http : //www.apache.org/licenses/LICENSE-2.0 .
*/
#ifndef INCLUDED_SLIDESHOW_SOURCE_INC_ANIMATION_HXX
#define INCLUDED_SLIDESHOW_SOURCE_INC_ANIMATION_HXX
#include "animatableshape.hxx"
#include "shapeattributelayer.hxx"
#include "disposable.hxx"
/* Definition of Animation interface */
namespace slideshow::internal
{
/** Interface defining a generic animation.
This interface is used by objects implementing the
Activity interface to drive the animation effect . Objects
implementing this interface will receive time - varying
animation values , which they can forward to the
appropriate attributes . The type of these animation values
is given in derived interfaces .
@ see NumberAnimation
@ see ColorAnimation
@ see PairAnimation
*/
class Animation : public virtual SharedPtrAble
{
public :
/** Notify that the animation going active soon.
Implementers should preload any buffers , and create
any expensive objects at this time .
@ param rShape
Shape to apply this animation to .
@ param rAttrLayer
Attribute layer to play the animation on .
*/
virtual void prefetch( ) = 0 ;
/** Notify that the animation is about to begin.
Implementers are free to start accompanying effects ,
such as sounds , and the animation timer now .
@ param rShape
Shape to apply this animation to .
@ param rAttrLayer
Attribute layer to play the animation on .
*/
virtual void start( const AnimatableShapeSharedPtr& rShape,
const ShapeAttributeLayerSharedPtr& rAttrLayer ) = 0 ;
/** Notify that the animation is about to end.
*/
virtual void end() = 0 ;
};
}
#endif // INCLUDED_SLIDESHOW_SOURCE_INC_ANIMATION_HXX
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