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Diffstat (limited to 'slideshow/source/inc/numberanimation.hxx')
-rw-r--r-- | slideshow/source/inc/numberanimation.hxx | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/slideshow/source/inc/numberanimation.hxx b/slideshow/source/inc/numberanimation.hxx new file mode 100644 index 000000000000..44a66a2b0aad --- /dev/null +++ b/slideshow/source/inc/numberanimation.hxx @@ -0,0 +1,79 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +#ifndef INCLUDED_SLIDESHOW_NUMBERANIMATION_HXX +#define INCLUDED_SLIDESHOW_NUMBERANIMATION_HXX + +#include <animation.hxx> + + +/* Definition of NumberAnimation interface */ + +namespace slideshow +{ + namespace internal + { + /** Interface defining a number animation. + + This interface is a specialization of the Animation + interface, and is used to animate attributes representable + by a single floating point value. + */ + class NumberAnimation : public Animation + { + public: + typedef double ValueType; + + /** Set the animation to value x + + @param x + Current animation value (must be in an + attribute-specific permissible range). Overflowing + values will be clipped to the permissible range + internally. + */ + virtual bool operator()( ValueType x ) = 0; + + /** Request the underlying value for this animation. + + This is necessary for pure To or By animations, as the + Activity cannot determine a sensible start value + otherwise. + + @attention Note that you are only permitted to query + for the underlying value, if the animation has actually + been started (via start() call). + */ + virtual ValueType getUnderlyingValue() const = 0; + }; + + typedef ::boost::shared_ptr< NumberAnimation > NumberAnimationSharedPtr; + + } +} + +#endif /* INCLUDED_SLIDESHOW_NUMBERANIMATION_HXX */ |