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/*
* Copyright (C) Research In Motion Limited 2011. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#if ENABLE(SVG)
#include "SVGAnimatedRect.h"
#include "SVGAnimateElement.h"
#include "SVGParserUtilities.h"
namespace WebCore {
SVGAnimatedRectAnimator::SVGAnimatedRectAnimator(SVGAnimationElement* animationElement, SVGElement* contextElement)
: SVGAnimatedTypeAnimator(AnimatedRect, animationElement, contextElement)
{
}
PassOwnPtr<SVGAnimatedType> SVGAnimatedRectAnimator::constructFromString(const String& string)
{
OwnPtr<SVGAnimatedType> animatedType = SVGAnimatedType::createRect(new FloatRect);
parseRect(string, animatedType->rect());
return animatedType.release();
}
void SVGAnimatedRectAnimator::calculateFromAndToValues(OwnPtr<SVGAnimatedType>& from, OwnPtr<SVGAnimatedType>& to, const String& fromString, const String& toString)
{
from = constructFromString(fromString);
to = constructFromString(toString);
}
void SVGAnimatedRectAnimator::calculateFromAndByValues(OwnPtr<SVGAnimatedType>& from, OwnPtr<SVGAnimatedType>& to, const String& fromString, const String& byString)
{
ASSERT(m_contextElement);
from = constructFromString(fromString);
to = constructFromString(byString);
to->rect() += from->rect();
}
void SVGAnimatedRectAnimator::calculateAnimatedValue(float percentage, unsigned repeatCount,
OwnPtr<SVGAnimatedType>& from, OwnPtr<SVGAnimatedType>& to, OwnPtr<SVGAnimatedType>& animated)
{
ASSERT(m_animationElement);
ASSERT(m_contextElement);
SVGAnimateElement* animationElement = static_cast<SVGAnimateElement*>(m_animationElement);
AnimationMode animationMode = animationElement->animationMode();
// To animation uses contributions from the lower priority animations as the base value.
FloatRect& animatedRect = animated->rect();
if (animationMode == ToAnimation)
from->rect() = animatedRect;
const FloatRect& fromRect = from->rect();
const FloatRect& toRect = to->rect();
FloatRect newRect;
if (animationElement->calcMode() == CalcModeDiscrete)
newRect = percentage < 0.5 ? fromRect : toRect;
else
newRect = FloatRect((toRect.x() - fromRect.x()) * percentage + fromRect.x(),
(toRect.y() - fromRect.y()) * percentage + fromRect.y(),
(toRect.width() - fromRect.width()) * percentage + fromRect.width(),
(toRect.height() - fromRect.height()) * percentage + fromRect.height());
// FIXME: This is not correct for values animation. Right now we transform values-animation to multiple from-to-animations and
// accumulate every single value to the previous one. But accumulation should just take into account after a complete cycle
// of values-animaiton. See example at: http://www.w3.org/TR/2001/REC-smil-animation-20010904/#RepeatingAnim
if (animationElement->isAccumulated() && repeatCount) {
newRect += toRect;
newRect.scale(repeatCount);
}
if (animationElement->isAdditive() && animationMode != ToAnimation)
animatedRect += newRect;
else
animatedRect = newRect;
}
float SVGAnimatedRectAnimator::calculateDistance(const String&, const String&)
{
// FIXME: Distance calculation is not possible for SVGRect right now. We need the distance of for every single value.
return -1;
}
}
#endif // ENABLE(SVG)
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