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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 "SVGAnimatedPointList.h"
#include "SVGAnimateElement.h"
#include "SVGParserUtilities.h"
#include "SVGPointList.h"
namespace WebCore {
SVGAnimatedPointListAnimator::SVGAnimatedPointListAnimator(SVGAnimationElement* animationElement, SVGElement* contextElement)
: SVGAnimatedTypeAnimator(AnimatedPoints, animationElement, contextElement)
{
}
PassOwnPtr<SVGAnimatedType> SVGAnimatedPointListAnimator::constructFromString(const String& string)
{
OwnPtr<SVGAnimatedType> animtedType = SVGAnimatedType::createPointList(new SVGPointList);
pointsListFromSVGData(animtedType->pointList(), string);
return animtedType.release();
}
void SVGAnimatedPointListAnimator::calculateFromAndToValues(OwnPtr<SVGAnimatedType>& from, OwnPtr<SVGAnimatedType>& to, const String& fromString, const String& toString)
{
from = constructFromString(fromString);
to = constructFromString(toString);
}
void SVGAnimatedPointListAnimator::calculateFromAndByValues(OwnPtr<SVGAnimatedType>& from, OwnPtr<SVGAnimatedType>& to, const String& fromString, const String& byString)
{
from = constructFromString(fromString);
to = constructFromString(byString);
SVGPointList& fromPointList = from->pointList();
SVGPointList& toPointList = to->pointList();
unsigned itemCount = fromPointList.size();
if (!itemCount || itemCount != toPointList.size())
return;
for (unsigned n = 0; n < itemCount; ++n) {
FloatPoint& to = toPointList.at(n);
to += fromPointList.at(n);
}
}
void SVGAnimatedPointListAnimator::calculateAnimatedValue(float percentage, unsigned,
OwnPtr<SVGAnimatedType>& from, OwnPtr<SVGAnimatedType>& to, OwnPtr<SVGAnimatedType>& animated)
{
ASSERT(m_animationElement);
ASSERT(m_contextElement);
SVGPointList& animatedPointList = animated->pointList();
SVGPointList& fromPointList = from->pointList();
SVGPointList& toPointList = to->pointList();
if (!percentage)
animatedPointList = fromPointList;
else if (percentage == 1)
animatedPointList = toPointList;
else {
animatedPointList.clear();
if (!fromPointList.isEmpty() && !toPointList.isEmpty())
SVGPointList::createAnimated(fromPointList, toPointList, animatedPointList, percentage);
// Fall back to discrete animation if the points are not compatible
AnimationMode animationMode = static_cast<SVGAnimateElement*>(m_animationElement)->animationMode();
if (animatedPointList.isEmpty())
animatedPointList = ((animationMode == FromToAnimation && percentage > 0.5) || animationMode == ToAnimation || percentage == 1)
? toPointList : fromPointList;
}
return;
}
float SVGAnimatedPointListAnimator::calculateDistance(const String&, const String&)
{
// FIXME: Distance calculation is not possible for SVGPointList right now. We need the distance of for every single value.
return -1;
}
}
#endif // ENABLE(SVG)
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