[SVG] SVGAnimatedTransform{,List} migration to new SVG property impl.

Source/core/svg/SVGAnimatedTransformList.cpp

-/*
- * Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann@kde.org>
- * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
- * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
- * Copyright (C) 2008 Apple Inc. All rights reserved.
- * Copyright (C) Research In Motion Limited 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"
-
-#include "core/svg/SVGAnimatedTransformList.h"
-
-#include "SVGNames.h"
-#include "core/svg/SVGAnimateTransformElement.h"
-#include "core/svg/SVGAnimatedNumber.h"
-#include "core/svg/SVGTransformDistance.h"
-
-namespace WebCore {
-
-SVGAnimatedTransformListAnimator::SVGAnimatedTransformListAnimator(SVGAnimationElement* animationElement, SVGElement* contextElement)
-    : SVGAnimatedTypeAnimator(AnimatedTransformList, animationElement, contextElement)
-    , m_transformTypeString(SVGTransform::transformTypePrefixForParsing(toSVGAnimateTransformElement(animationElement)->transformType()))
-{
-    // Only <animateTransform> uses this animator, as <animate> doesn't allow to animate transform lists directly.
-    ASSERT(animationElement->hasTagName(SVGNames::animateTransformTag));
-}
-
-PassOwnPtr<SVGAnimatedType> SVGAnimatedTransformListAnimator::constructFromString(const String& string)
-{
-    OwnPtr<SVGAnimatedType> animatedType = SVGAnimatedType::createTransformList(new SVGTransformList);
-    animatedType->transformList().parse(m_transformTypeString + string + ')');
-    ASSERT(animatedType->transformList().size() <= 1);
-    return animatedType.release();
-}
-
-PassOwnPtr<SVGAnimatedType> SVGAnimatedTransformListAnimator::startAnimValAnimation(const SVGElementAnimatedPropertyList& animatedTypes)
-{
-    return SVGAnimatedType::createTransformList(constructFromBaseValue<SVGAnimatedTransformList>(animatedTypes));
-}
-
-void SVGAnimatedTransformListAnimator::stopAnimValAnimation(const SVGElementAnimatedPropertyList& animatedTypes)
-{
-    stopAnimValAnimationForType<SVGAnimatedTransformList>(animatedTypes);
-}
-
-void SVGAnimatedTransformListAnimator::resetAnimValToBaseVal(const SVGElementAnimatedPropertyList& animatedTypes, SVGAnimatedType* type)
-{
-    resetFromBaseValue<SVGAnimatedTransformList>(animatedTypes, type, &SVGAnimatedType::transformList);
-}
-
-void SVGAnimatedTransformListAnimator::animValWillChange(const SVGElementAnimatedPropertyList& animatedTypes)
-{
-    animValWillChangeForType<SVGAnimatedTransformList>(animatedTypes);
-}
-
-void SVGAnimatedTransformListAnimator::animValDidChange(const SVGElementAnimatedPropertyList& animatedTypes)
-{
-    animValDidChangeForType<SVGAnimatedTransformList>(animatedTypes);
-}
-
-void SVGAnimatedTransformListAnimator::addAnimatedTypes(SVGAnimatedType* from, SVGAnimatedType* to)
-{
-    ASSERT(from->type() == AnimatedTransformList);
-    ASSERT(from->type() == to->type());
-
-    const SVGTransformList& fromTransformList = from->transformList();
-    SVGTransformList& toTransformList = to->transformList();
-    unsigned fromTransformListSize = fromTransformList.size();
-    if (!fromTransformListSize || fromTransformListSize != toTransformList.size())
-        return;
-
-    ASSERT(fromTransformListSize == 1);
-    const SVGTransform& fromTransform = fromTransformList[0];
-    SVGTransform& toTransform = toTransformList[0];
-
-    ASSERT(fromTransform.type() == toTransform.type());
-    toTransform = SVGTransformDistance::addSVGTransforms(fromTransform, toTransform);
-}
-
-void SVGAnimatedTransformListAnimator::calculateAnimatedValue(float percentage, unsigned repeatCount, SVGAnimatedType* from, SVGAnimatedType* to, SVGAnimatedType* toAtEndOfDuration, SVGAnimatedType* animated)
-{
-    ASSERT(m_animationElement);
-
-    // Spec: To animations provide specific functionality to get a smooth change from the underlying value to the
-    // ‘to’ attribute value, which conflicts mathematically with the requirement for additive transform animations
-    // to be post-multiplied. As a consequence, in SVG 1.1 the behavior of to animations for ‘animateTransform’ is undefined.
-    // FIXME: This is not taken into account yet.
-    const SVGTransformList& fromTransformList = m_animationElement->animationMode() == ToAnimation ? animated->transformList() : from->transformList();
-    const SVGTransformList& toTransformList = to->transformList();
-    const SVGTransformList& toAtEndOfDurationTransformList = toAtEndOfDuration->transformList();
-    SVGTransformList& animatedTransformList = animated->transformList();
-
-    // Pass false to 'resizeAnimatedListIfNeeded' here, as the special post-multiplication behavior of <animateTransform> needs to be respected below.
-    if (!m_animationElement->adjustFromToListValues<SVGTransformList>(fromTransformList, toTransformList, animatedTransformList, percentage, false))
-        return;
-
-    // Never resize the animatedTransformList to the toTransformList size, instead either clear the list or append to it.
-    if (!animatedTransformList.isEmpty() && !m_animationElement->isAdditive())
-        animatedTransformList.clear();
-
-    unsigned fromTransformListSize = fromTransformList.size();
-    const SVGTransform& toTransform = toTransformList[0];
-    const SVGTransform effectiveFrom = fromTransformListSize ? fromTransformList[0] : SVGTransform(toTransform.type(), SVGTransform::ConstructZeroTransform);
-    SVGTransform currentTransform = SVGTransformDistance(effectiveFrom, toTransform).scaledDistance(percentage).addToSVGTransform(effectiveFrom);
-    if (m_animationElement->isAccumulated() && repeatCount) {
-        const SVGTransform effectiveToAtEnd = toAtEndOfDurationTransformList.size() ? toAtEndOfDurationTransformList[0] : SVGTransform(toTransform.type(), SVGTransform::ConstructZeroTransform);
-        animatedTransformList.append(SVGTransformDistance::addSVGTransforms(currentTransform, effectiveToAtEnd, repeatCount));
-    } else
-        animatedTransformList.append(currentTransform);
-}
-
-float SVGAnimatedTransformListAnimator::calculateDistance(const String& fromString, const String& toString)
-{
-    ASSERT(m_animationElement);
-
-    // FIXME: This is not correct in all cases. The spec demands that each component (translate x and y for example)
-    // is paced separately. To implement this we need to treat each component as individual animation everywhere.
-    OwnPtr<SVGAnimatedType> from = constructFromString(fromString);
-    OwnPtr<SVGAnimatedType> to = constructFromString(toString);
-
-    SVGTransformList& fromTransformList = from->transformList();
-    SVGTransformList& toTransformList = to->transformList();
-    unsigned itemsCount = fromTransformList.size();
-    if (!itemsCount || itemsCount != toTransformList.size())
-        return -1;
-
-    ASSERT(itemsCount == 1);
-    if (fromTransformList[0].type() != toTransformList[0].type())
-        return -1;
-
-    // Spec: http://www.w3.org/TR/SVG/animate.html#complexDistances
-    // Paced animations assume a notion of distance between the various animation values defined by the ‘to’, ‘from’, ‘by’ and ‘values’ attributes.
-    // Distance is defined only for scalar types (such as <length>), colors and the subset of transformation types that are supported by ‘animateTransform’.
-    return SVGTransformDistance(fromTransformList[0], toTransformList[0]).distance();
-}
-
-}