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/*
* Copyright (C) Research In Motion Limited 2011, 2012. 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 "SVGAnimatedPath.h"
#include "SVGAnimateElement.h"
#include "SVGAnimatedPathSegListPropertyTearOff.h"
#include "SVGPathUtilities.h"
namespace WebCore {
SVGAnimatedPathAnimator::SVGAnimatedPathAnimator(SVGAnimationElement* animationElement, SVGElement* contextElement)
: SVGAnimatedTypeAnimator(AnimatedPath, animationElement, contextElement)
{
}
PassOwnPtr<SVGAnimatedType> SVGAnimatedPathAnimator::constructFromString(const String& string)
{
OwnPtr<SVGPathByteStream> byteStream = SVGPathByteStream::create();
buildSVGPathByteStreamFromString(string, byteStream.get(), UnalteredParsing);
return SVGAnimatedType::createPath(byteStream.release());
}
PassOwnPtr<SVGAnimatedType> SVGAnimatedPathAnimator::startAnimValAnimation(const SVGElementAnimatedPropertyList& animatedTypes)
{
ASSERT(animatedTypes.size() >= 1);
SVGAnimatedPathSegListPropertyTearOff* property = castAnimatedPropertyToActualType<SVGAnimatedPathSegListPropertyTearOff>(animatedTypes[0].properties[0].get());
const SVGPathSegList& baseValue = property->currentBaseValue();
// Build initial path byte stream.
OwnPtr<SVGPathByteStream> byteStream = SVGPathByteStream::create();
buildSVGPathByteStreamFromSVGPathSegList(baseValue, byteStream.get(), UnalteredParsing);
Vector<RefPtr<SVGAnimatedPathSegListPropertyTearOff> > result;
SVGElementAnimatedPropertyList::const_iterator end = animatedTypes.end();
for (SVGElementAnimatedPropertyList::const_iterator it = animatedTypes.begin(); it != end; ++it)
result.append(castAnimatedPropertyToActualType<SVGAnimatedPathSegListPropertyTearOff>(it->properties[0].get()));
SVGElementInstance::InstanceUpdateBlocker blocker(property->contextElement());
size_t resultSize = result.size();
for (size_t i = 0; i < resultSize; ++i)
result[i]->animationStarted(byteStream.get(), &baseValue);
return SVGAnimatedType::createPath(byteStream.release());
}
void SVGAnimatedPathAnimator::stopAnimValAnimation(const SVGElementAnimatedPropertyList& animatedTypes)
{
stopAnimValAnimationForType<SVGAnimatedPathSegListPropertyTearOff>(animatedTypes);
}
void SVGAnimatedPathAnimator::resetAnimValToBaseVal(const SVGElementAnimatedPropertyList& animatedTypes, SVGAnimatedType* type)
{
ASSERT(animatedTypes.size() >= 1);
ASSERT(type);
ASSERT(type->type() == m_type);
const SVGPathSegList& baseValue = castAnimatedPropertyToActualType<SVGAnimatedPathSegListPropertyTearOff>(animatedTypes[0].properties[0].get())->currentBaseValue();
buildSVGPathByteStreamFromSVGPathSegList(baseValue, type->path(), UnalteredParsing);
}
void SVGAnimatedPathAnimator::animValWillChange(const SVGElementAnimatedPropertyList& animatedTypes)
{
animValWillChangeForType<SVGAnimatedPathSegListPropertyTearOff>(animatedTypes);
}
void SVGAnimatedPathAnimator::animValDidChange(const SVGElementAnimatedPropertyList& animatedTypes)
{
animValDidChangeForType<SVGAnimatedPathSegListPropertyTearOff>(animatedTypes);
}
void SVGAnimatedPathAnimator::addAnimatedTypes(SVGAnimatedType* from, SVGAnimatedType* to)
{
ASSERT(from->type() == AnimatedPath);
ASSERT(from->type() == to->type());
SVGPathByteStream* fromPath = from->path();
SVGPathByteStream* toPath = to->path();
unsigned fromPathSize = fromPath->size();
if (!fromPathSize || fromPathSize != toPath->size())
return;
addToSVGPathByteStream(toPath, fromPath);
}
void SVGAnimatedPathAnimator::calculateAnimatedValue(float percentage, unsigned repeatCount, SVGAnimatedType* from, SVGAnimatedType* to, SVGAnimatedType* toAtEndOfDuration, SVGAnimatedType* animated)
{
ASSERT(m_animationElement);
ASSERT(m_contextElement);
SVGPathByteStream* fromPath = from->path();
SVGPathByteStream* toPath = to->path();
SVGPathByteStream* toAtEndOfDurationPath = toAtEndOfDuration->path();
SVGPathByteStream* animatedPath = animated->path();
OwnPtr<SVGPathByteStream> underlyingPath;
bool isToAnimation = m_animationElement->animationMode() == ToAnimation;
if (isToAnimation) {
underlyingPath = animatedPath->copy();
fromPath = underlyingPath.get();
}
// Cache the current animated value before the buildAnimatedSVGPathByteStream() clears animatedPath.
OwnPtr<SVGPathByteStream> lastAnimatedPath;
if (!fromPath->size() || (m_animationElement->isAdditive() && !isToAnimation))
lastAnimatedPath = animatedPath->copy();
// Pass false to 'resizeAnimatedListIfNeeded' here, as the path animation is not a regular Vector<SVGXXX> type, but a SVGPathByteStream, that works differently.
if (!m_animationElement->adjustFromToListValues<SVGPathByteStream>(*fromPath, *toPath, *animatedPath, percentage, false))
return;
buildAnimatedSVGPathByteStream(fromPath, toPath, animatedPath, percentage);
// Handle additive='sum'.
if (lastAnimatedPath)
addToSVGPathByteStream(animatedPath, lastAnimatedPath.get());
// Handle accumulate='sum'.
if (m_animationElement->isAccumulated() && repeatCount)
addToSVGPathByteStream(animatedPath, toAtEndOfDurationPath, repeatCount);
}
float SVGAnimatedPathAnimator::calculateDistance(const String&, const String&)
{
// FIXME: Support paced animations.
return -1;
}
}
#endif // ENABLE(SVG)
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