1/* 2 * Copyright (C) Research In Motion Limited 2011, 2012. 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 "core/svg/SVGAnimatedAngle.h" 22 23#include "bindings/v8/ExceptionStatePlaceholder.h" 24#include "core/svg/SVGAnimateElement.h" 25#include "core/svg/SVGMarkerElement.h" 26 27namespace WebCore { 28 29SVGAnimatedAngleAnimator::SVGAnimatedAngleAnimator(SVGAnimationElement* animationElement, SVGElement* contextElement) 30 : SVGAnimatedTypeAnimator(AnimatedAngle, animationElement, contextElement) 31{ 32} 33 34PassOwnPtr<SVGAnimatedType> SVGAnimatedAngleAnimator::constructFromString(const String& string) 35{ 36 OwnPtr<SVGAnimatedType> animatedType = SVGAnimatedType::createAngleAndEnumeration(new pair<SVGAngle, unsigned>); 37 pair<SVGAngle, unsigned>& animatedPair = animatedType->angleAndEnumeration(); 38 39 SVGAngle angle; 40 SVGMarkerOrientType orientType = SVGPropertyTraits<SVGMarkerOrientType>::fromString(string, angle); 41 if (orientType > 0) 42 animatedPair.second = orientType; 43 if (orientType == SVGMarkerOrientAngle) 44 animatedPair.first = angle; 45 46 return animatedType.release(); 47} 48 49PassOwnPtr<SVGAnimatedType> SVGAnimatedAngleAnimator::startAnimValAnimation(const SVGElementAnimatedPropertyList& animatedTypes) 50{ 51 return SVGAnimatedType::createAngleAndEnumeration(constructFromBaseValues<SVGAnimatedAngle, SVGAnimatedEnumeration>(animatedTypes)); 52} 53 54void SVGAnimatedAngleAnimator::stopAnimValAnimation(const SVGElementAnimatedPropertyList& animatedTypes) 55{ 56 stopAnimValAnimationForTypes<SVGAnimatedAngle, SVGAnimatedEnumeration>(animatedTypes); 57} 58 59void SVGAnimatedAngleAnimator::resetAnimValToBaseVal(const SVGElementAnimatedPropertyList& animatedTypes, SVGAnimatedType* type) 60{ 61 resetFromBaseValues<SVGAnimatedAngle, SVGAnimatedEnumeration>(animatedTypes, type, &SVGAnimatedType::angleAndEnumeration); 62} 63 64void SVGAnimatedAngleAnimator::animValWillChange(const SVGElementAnimatedPropertyList& animatedTypes) 65{ 66 animValWillChangeForTypes<SVGAnimatedAngle, SVGAnimatedEnumeration>(animatedTypes); 67} 68 69void SVGAnimatedAngleAnimator::animValDidChange(const SVGElementAnimatedPropertyList& animatedTypes) 70{ 71 animValDidChangeForTypes<SVGAnimatedAngle, SVGAnimatedEnumeration>(animatedTypes); 72} 73 74void SVGAnimatedAngleAnimator::addAnimatedTypes(SVGAnimatedType* from, SVGAnimatedType* to) 75{ 76 ASSERT(from->type() == AnimatedAngle); 77 ASSERT(from->type() == to->type()); 78 79 const pair<SVGAngle, unsigned>& fromAngleAndEnumeration = from->angleAndEnumeration(); 80 pair<SVGAngle, unsigned>& toAngleAndEnumeration = to->angleAndEnumeration(); 81 // Only respect by animations, if from and by are both specified in angles (and not eg. 'auto'). 82 if (fromAngleAndEnumeration.second != toAngleAndEnumeration.second || fromAngleAndEnumeration.second != SVGMarkerOrientAngle) 83 return; 84 const SVGAngle& fromAngle = fromAngleAndEnumeration.first; 85 SVGAngle& toAngle = toAngleAndEnumeration.first; 86 toAngle.setValue(toAngle.value() + fromAngle.value()); 87} 88 89void SVGAnimatedAngleAnimator::calculateAnimatedValue(float percentage, unsigned repeatCount, SVGAnimatedType* from, SVGAnimatedType* to, SVGAnimatedType* toAtEndOfDuration, SVGAnimatedType* animated) 90{ 91 ASSERT(m_animationElement); 92 ASSERT(m_contextElement); 93 94 const pair<SVGAngle, unsigned>& fromAngleAndEnumeration = m_animationElement->animationMode() == ToAnimation ? animated->angleAndEnumeration() : from->angleAndEnumeration(); 95 const pair<SVGAngle, unsigned>& toAngleAndEnumeration = to->angleAndEnumeration(); 96 const pair<SVGAngle, unsigned>& toAtEndOfDurationAngleAndEnumeration = toAtEndOfDuration->angleAndEnumeration(); 97 pair<SVGAngle, unsigned>& animatedAngleAndEnumeration = animated->angleAndEnumeration(); 98 99 if (fromAngleAndEnumeration.second != toAngleAndEnumeration.second) { 100 // Animating from eg. auto to 90deg, or auto to 90deg. 101 if (fromAngleAndEnumeration.second == SVGMarkerOrientAngle) { 102 // Animating from an angle value to eg. 'auto' - this disabled additive as 'auto' is a keyword.. 103 if (toAngleAndEnumeration.second == SVGMarkerOrientAuto) { 104 if (percentage < 0.5f) { 105 animatedAngleAndEnumeration.first = fromAngleAndEnumeration.first; 106 animatedAngleAndEnumeration.second = SVGMarkerOrientAngle; 107 return; 108 } 109 animatedAngleAndEnumeration.first.setValue(0); 110 animatedAngleAndEnumeration.second = SVGMarkerOrientAuto; 111 return; 112 } 113 animatedAngleAndEnumeration.first.setValue(0); 114 animatedAngleAndEnumeration.second = SVGMarkerOrientUnknown; 115 return; 116 } 117 } 118 119 // From 'auto' to 'auto'. 120 if (fromAngleAndEnumeration.second == SVGMarkerOrientAuto) { 121 animatedAngleAndEnumeration.first.setValue(0); 122 animatedAngleAndEnumeration.second = SVGMarkerOrientAuto; 123 return; 124 } 125 126 // If the enumeration value is not angle or auto, its unknown. 127 if (fromAngleAndEnumeration.second != SVGMarkerOrientAngle) { 128 animatedAngleAndEnumeration.first.setValue(0); 129 animatedAngleAndEnumeration.second = SVGMarkerOrientUnknown; 130 return; 131 } 132 133 // Regular from angle to angle animation, with all features like additive etc. 134 animatedAngleAndEnumeration.second = SVGMarkerOrientAngle; 135 136 SVGAngle& animatedSVGAngle = animatedAngleAndEnumeration.first; 137 const SVGAngle& toAtEndOfDurationSVGAngle = toAtEndOfDurationAngleAndEnumeration.first; 138 float animatedAngle = animatedSVGAngle.value(); 139 m_animationElement->animateAdditiveNumber(percentage, repeatCount, fromAngleAndEnumeration.first.value(), toAngleAndEnumeration.first.value(), toAtEndOfDurationSVGAngle.value(), animatedAngle); 140 animatedSVGAngle.setValue(animatedAngle); 141} 142 143float SVGAnimatedAngleAnimator::calculateDistance(const String& fromString, const String& toString) 144{ 145 SVGAngle from = SVGAngle(); 146 from.setValueAsString(fromString, ASSERT_NO_EXCEPTION); 147 SVGAngle to = SVGAngle(); 148 to.setValueAsString(toString, ASSERT_NO_EXCEPTION); 149 return fabsf(to.value() - from.value()); 150} 151 152} 153