1/* 2 * Copyright (C) Research In Motion Limited 2011. All rights reserved. 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public License 15 * along with this library; see the file COPYING.LIB. If not, write to 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 */ 19 20#include "config.h" 21#include "SVGAnimatedNumber.h" 22 23#include "SVGAnimateElement.h" 24#include "SVGParserUtilities.h" 25 26namespace WebCore { 27 28SVGAnimatedNumberAnimator::SVGAnimatedNumberAnimator(SVGAnimationElement* animationElement, SVGElement* contextElement) 29 : SVGAnimatedTypeAnimator(AnimatedNumber, animationElement, contextElement) 30{ 31} 32 33std::unique_ptr<SVGAnimatedType> SVGAnimatedNumberAnimator::constructFromString(const String& string) 34{ 35 auto animatedType = SVGAnimatedType::createNumber(std::make_unique<float>()); 36 float& animatedNumber = animatedType->number(); 37 if (!parseNumberFromString(string, animatedNumber)) 38 animatedNumber = 0; 39 return animatedType; 40} 41 42std::unique_ptr<SVGAnimatedType> SVGAnimatedNumberAnimator::startAnimValAnimation(const SVGElementAnimatedPropertyList& animatedTypes) 43{ 44 return SVGAnimatedType::createNumber(constructFromBaseValue<SVGAnimatedNumber>(animatedTypes)); 45} 46 47void SVGAnimatedNumberAnimator::stopAnimValAnimation(const SVGElementAnimatedPropertyList& animatedTypes) 48{ 49 stopAnimValAnimationForType<SVGAnimatedNumber>(animatedTypes); 50} 51 52void SVGAnimatedNumberAnimator::resetAnimValToBaseVal(const SVGElementAnimatedPropertyList& animatedTypes, SVGAnimatedType* type) 53{ 54 resetFromBaseValue<SVGAnimatedNumber>(animatedTypes, type, &SVGAnimatedType::number); 55} 56 57void SVGAnimatedNumberAnimator::animValWillChange(const SVGElementAnimatedPropertyList& animatedTypes) 58{ 59 animValWillChangeForType<SVGAnimatedNumber>(animatedTypes); 60} 61 62void SVGAnimatedNumberAnimator::animValDidChange(const SVGElementAnimatedPropertyList& animatedTypes) 63{ 64 animValDidChangeForType<SVGAnimatedNumber>(animatedTypes); 65} 66 67void SVGAnimatedNumberAnimator::addAnimatedTypes(SVGAnimatedType* from, SVGAnimatedType* to) 68{ 69 ASSERT(from->type() == AnimatedNumber); 70 ASSERT(from->type() == to->type()); 71 72 to->number() += from->number(); 73} 74 75static float parseNumberFromString(SVGAnimationElement*, const String& string) 76{ 77 float number = 0; 78 parseNumberFromString(string, number); 79 return number; 80} 81 82void SVGAnimatedNumberAnimator::calculateAnimatedValue(float percentage, unsigned repeatCount, SVGAnimatedType* from, SVGAnimatedType* to, SVGAnimatedType* toAtEndOfDuration, SVGAnimatedType* animated) 83{ 84 ASSERT(m_animationElement); 85 ASSERT(m_contextElement); 86 87 float fromNumber = m_animationElement->animationMode() == ToAnimation ? animated->number() : from->number(); 88 float toNumber = to->number(); 89 float toAtEndOfDurationNumber = toAtEndOfDuration->number(); 90 float& animatedNumber = animated->number(); 91 92 // Apply CSS inheritance rules. 93 m_animationElement->adjustForInheritance<float>(parseNumberFromString, m_animationElement->fromPropertyValueType(), fromNumber, m_contextElement); 94 m_animationElement->adjustForInheritance<float>(parseNumberFromString, m_animationElement->toPropertyValueType(), toNumber, m_contextElement); 95 96 m_animationElement->animateAdditiveNumber(percentage, repeatCount, fromNumber, toNumber, toAtEndOfDurationNumber, animatedNumber); 97} 98 99float SVGAnimatedNumberAnimator::calculateDistance(const String& fromString, const String& toString) 100{ 101 ASSERT(m_contextElement); 102 float from = 0; 103 float to = 0; 104 parseNumberFromString(fromString, from); 105 parseNumberFromString(toString, to); 106 return fabsf(to - from); 107} 108 109} 110