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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 "SVGAnimatedAngle.h"
#include "SVGAnimateElement.h"
#include "SVGMarkerElement.h"
namespace WebCore {
SVGAnimatedAngleAnimator::SVGAnimatedAngleAnimator(SVGAnimationElement* animationElement, SVGElement* contextElement)
: SVGAnimatedTypeAnimator(AnimatedAngle, animationElement, contextElement)
{
}
static inline SVGAngle& sharedSVGAngle(const String& valueAsString)
{
DEFINE_STATIC_LOCAL(SVGAngle, sharedAngle, ());
sharedAngle.setValueAsString(valueAsString, ASSERT_NO_EXCEPTION);
return sharedAngle;
}
PassOwnPtr<SVGAnimatedType> SVGAnimatedAngleAnimator::constructFromString(const String& string)
{
OwnPtr<SVGAnimatedType> animatedType = SVGAnimatedType::createAngleAndEnumeration(new pair<SVGAngle, unsigned>);
pair<SVGAngle, unsigned>& animatedPair = animatedType->angleAndEnumeration();
SVGAngle angle;
SVGMarkerOrientType orientType = SVGPropertyTraits<SVGMarkerOrientType>::fromString(string, angle);
if (orientType > 0)
animatedPair.second = orientType;
if (orientType == SVGMarkerOrientAngle)
animatedPair.first = angle;
return animatedType.release();
}
PassOwnPtr<SVGAnimatedType> SVGAnimatedAngleAnimator::startAnimValAnimation(const SVGElementAnimatedPropertyList& animatedTypes)
{
return SVGAnimatedType::createAngleAndEnumeration(constructFromBaseValues<SVGAnimatedAngle, SVGAnimatedEnumeration>(animatedTypes));
}
void SVGAnimatedAngleAnimator::stopAnimValAnimation(const SVGElementAnimatedPropertyList& animatedTypes)
{
stopAnimValAnimationForTypes<SVGAnimatedAngle, SVGAnimatedEnumeration>(animatedTypes);
}
void SVGAnimatedAngleAnimator::resetAnimValToBaseVal(const SVGElementAnimatedPropertyList& animatedTypes, SVGAnimatedType* type)
{
resetFromBaseValues<SVGAnimatedAngle, SVGAnimatedEnumeration>(animatedTypes, type, &SVGAnimatedType::angleAndEnumeration);
}
void SVGAnimatedAngleAnimator::animValWillChange(const SVGElementAnimatedPropertyList& animatedTypes)
{
animValWillChangeForTypes<SVGAnimatedAngle, SVGAnimatedEnumeration>(animatedTypes);
}
void SVGAnimatedAngleAnimator::animValDidChange(const SVGElementAnimatedPropertyList& animatedTypes)
{
animValDidChangeForTypes<SVGAnimatedAngle, SVGAnimatedEnumeration>(animatedTypes);
}
void SVGAnimatedAngleAnimator::addAnimatedTypes(SVGAnimatedType* from, SVGAnimatedType* to)
{
ASSERT(from->type() == AnimatedAngle);
ASSERT(from->type() == to->type());
const pair<SVGAngle, unsigned>& fromAngleAndEnumeration = from->angleAndEnumeration();
pair<SVGAngle, unsigned>& toAngleAndEnumeration = to->angleAndEnumeration();
// Only respect by animations, if from and by are both specified in angles (and not eg. 'auto').
if (fromAngleAndEnumeration.second != toAngleAndEnumeration.second || fromAngleAndEnumeration.second != SVGMarkerOrientAngle)
return;
const SVGAngle& fromAngle = fromAngleAndEnumeration.first;
SVGAngle& toAngle = toAngleAndEnumeration.first;
toAngle.setValue(toAngle.value() + fromAngle.value());
}
void SVGAnimatedAngleAnimator::calculateAnimatedValue(float percentage, unsigned repeatCount, SVGAnimatedType* from, SVGAnimatedType* to, SVGAnimatedType* toAtEndOfDuration, SVGAnimatedType* animated)
{
ASSERT(m_animationElement);
ASSERT(m_contextElement);
const pair<SVGAngle, unsigned>& fromAngleAndEnumeration = m_animationElement->animationMode() == ToAnimation ? animated->angleAndEnumeration() : from->angleAndEnumeration();
const pair<SVGAngle, unsigned>& toAngleAndEnumeration = to->angleAndEnumeration();
const pair<SVGAngle, unsigned>& toAtEndOfDurationAngleAndEnumeration = toAtEndOfDuration->angleAndEnumeration();
pair<SVGAngle, unsigned>& animatedAngleAndEnumeration = animated->angleAndEnumeration();
if (fromAngleAndEnumeration.second != toAngleAndEnumeration.second) {
// Animating from eg. auto to 90deg, or auto to 90deg.
if (fromAngleAndEnumeration.second == SVGMarkerOrientAngle) {
// Animating from an angle value to eg. 'auto' - this disabled additive as 'auto' is a keyword..
if (toAngleAndEnumeration.second == SVGMarkerOrientAuto) {
if (percentage < 0.5f) {
animatedAngleAndEnumeration.first = fromAngleAndEnumeration.first;
animatedAngleAndEnumeration.second = SVGMarkerOrientAngle;
return;
}
animatedAngleAndEnumeration.first.setValue(0);
animatedAngleAndEnumeration.second = SVGMarkerOrientAuto;
return;
}
animatedAngleAndEnumeration.first.setValue(0);
animatedAngleAndEnumeration.second = SVGMarkerOrientUnknown;
return;
}
}
// From 'auto' to 'auto'.
if (fromAngleAndEnumeration.second == SVGMarkerOrientAuto) {
animatedAngleAndEnumeration.first.setValue(0);
animatedAngleAndEnumeration.second = SVGMarkerOrientAuto;
return;
}
// If the enumeration value is not angle or auto, its unknown.
if (fromAngleAndEnumeration.second != SVGMarkerOrientAngle) {
animatedAngleAndEnumeration.first.setValue(0);
animatedAngleAndEnumeration.second = SVGMarkerOrientUnknown;
return;
}
// Regular from angle to angle animation, with all features like additive etc.
animatedAngleAndEnumeration.second = SVGMarkerOrientAngle;
SVGAngle& animatedSVGAngle = animatedAngleAndEnumeration.first;
const SVGAngle& toAtEndOfDurationSVGAngle = toAtEndOfDurationAngleAndEnumeration.first;
float animatedAngle = animatedSVGAngle.value();
m_animationElement->animateAdditiveNumber(percentage, repeatCount, fromAngleAndEnumeration.first.value(), toAngleAndEnumeration.first.value(), toAtEndOfDurationSVGAngle.value(), animatedAngle);
animatedSVGAngle.setValue(animatedAngle);
}
float SVGAnimatedAngleAnimator::calculateDistance(const String& fromString, const String& toString)
{
SVGAngle from = SVGAngle();
from.setValueAsString(fromString, ASSERT_NO_EXCEPTION);
SVGAngle to = SVGAngle();
to.setValueAsString(toString, ASSERT_NO_EXCEPTION);
return fabsf(to.value() - from.value());
}
}
#endif // ENABLE(SVG)
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