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/* -*- 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 .
*/
module com { module sun { module star { module rendering {
/* TODO: Have a property set here, to easily extend attributes? Think
that's advisable, because animations change the most. Implement
that with multiple inheritance interface types, please, not with
service description.
*/
/** This interface defines an animation sequence.<p>
This interface must be implemented by every animation object. It
is used by the XCanvas interface to render generic
animations.<p>
@since OOo 2.0
*/
interface XAnimation : ::com::sun::star::uno::XInterface
{
/** Render the animation content at time t into the specified
canvas.<p>
Note that it is perfectly legal to e.g. map t in a nonlinear
fashion to internal frames, for example to achieve
acceleration or deceleration effects. It is required that the
render method has const semantics, i.e. when called with the
same parameter set, identical output must be generated. This
is because e.g. a Sprite might decide arbitrarily to render an
animation once and cache the result, or repaint it via
XAnimation::render every time.<p>
The rendered content, although, must be exactly the same for
identical viewState, canvas and t values. Or, for that
matters, must call the same canvas methods in the same order
with the same parameter sets, for identical viewState and t
values. Furthermore, when viewState has the identity
transformation set, rendered output must be contained in a
rectangle with upper left corner at (0,0) and width and height
given by the AnimationAttributes' untransformedSize
member. Any content exceeding this box might get clipped off.<p>
@param canvas
The target canvas to render this animation to.
@param viewState
The view state to be used when rendering this animation to the
target canvas. The view transformation matrix must not be
singular.
@param t
Time instant for which animation content is requested. The
range must always be [0,1], where 0 denotes the very beginning, and
1 the end of the animation sequence.
@throws com::sun::star::lang::IllegalArgumentException
if one of the passed parameters does not lie in the specified,
permissible range.
*/
void render( [in] XCanvas canvas, [in] ViewState viewState, [in] double t )
raises (com::sun::star::lang::IllegalArgumentException);
/** Request the attribute information for this animation.<p>
This method returns the AnimationAttributes
structure, which defines more closely how to play this
animation.<p>
@returns the requested AnimationAttributes
structure.
*/
AnimationAttributes getAnimationAttributes();
};
}; }; }; };
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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