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 22#if ENABLE(SVG) 23#include "SVGAnimatedAngle.h" 24 25#include "SVGAnimateElement.h" 26#include "SVGMarkerElement.h" 27 28namespace WebCore { 29 30SVGAnimatedAngleAnimator::SVGAnimatedAngleAnimator(SVGAnimationElement* animationElement, SVGElement* contextElement) 31 : SVGAnimatedTypeAnimator(AnimatedAngle, animationElement, contextElement) 32{ 33} 34 35static inline SVGAngle& sharedSVGAngle(const String& valueAsString) 36{ 37 DEFINE_STATIC_LOCAL(SVGAngle, sharedAngle, ()); 38 sharedAngle.setValueAsString(valueAsString, ASSERT_NO_EXCEPTION); 39 return sharedAngle; 40} 41 42PassOwnPtr<SVGAnimatedType> SVGAnimatedAngleAnimator::constructFromString(const String& string) 43{ 44 OwnPtr<SVGAnimatedType> animatedType = SVGAnimatedType::createAngleAndEnumeration(new pair<SVGAngle, unsigned>); 45 pair<SVGAngle, unsigned>& animatedPair = animatedType->angleAndEnumeration(); 46 47 SVGAngle angle; 48 SVGMarkerOrientType orientType = SVGPropertyTraits<SVGMarkerOrientType>::fromString(string, angle); 49 if (orientType > 0) 50 animatedPair.second = orientType; 51 if (orientType == SVGMarkerOrientAngle) 52 animatedPair.first = angle; 53 54 return animatedType.release(); 55} 56 57PassOwnPtr<SVGAnimatedType> SVGAnimatedAngleAnimator::startAnimValAnimation(const SVGElementAnimatedPropertyList& animatedTypes) 58{ 59 return SVGAnimatedType::createAngleAndEnumeration(constructFromBaseValues<SVGAnimatedAngle, SVGAnimatedEnumeration>(animatedTypes)); 60} 61 62void SVGAnimatedAngleAnimator::stopAnimValAnimation(const SVGElementAnimatedPropertyList& animatedTypes) 63{ 64 stopAnimValAnimationForTypes<SVGAnimatedAngle, SVGAnimatedEnumeration>(animatedTypes); 65} 66 67void SVGAnimatedAngleAnimator::resetAnimValToBaseVal(const SVGElementAnimatedPropertyList& animatedTypes, SVGAnimatedType* type) 68{ 69 resetFromBaseValues<SVGAnimatedAngle, SVGAnimatedEnumeration>(animatedTypes, type, &SVGAnimatedType::angleAndEnumeration); 70} 71 72void SVGAnimatedAngleAnimator::animValWillChange(const SVGElementAnimatedPropertyList& animatedTypes) 73{ 74 animValWillChangeForTypes<SVGAnimatedAngle, SVGAnimatedEnumeration>(animatedTypes); 75} 76 77void SVGAnimatedAngleAnimator::animValDidChange(const SVGElementAnimatedPropertyList& animatedTypes) 78{ 79 animValDidChangeForTypes<SVGAnimatedAngle, SVGAnimatedEnumeration>(animatedTypes); 80} 81 82void SVGAnimatedAngleAnimator::addAnimatedTypes(SVGAnimatedType* from, SVGAnimatedType* to) 83{ 84 ASSERT(from->type() == AnimatedAngle); 85 ASSERT(from->type() == to->type()); 86 87 const pair<SVGAngle, unsigned>& fromAngleAndEnumeration = from->angleAndEnumeration(); 88 pair<SVGAngle, unsigned>& toAngleAndEnumeration = to->angleAndEnumeration(); 89 // Only respect by animations, if from and by are both specified in angles (and not eg. 'auto'). 90 if (fromAngleAndEnumeration.second != toAngleAndEnumeration.second || fromAngleAndEnumeration.second != SVGMarkerOrientAngle) 91 return; 92 const SVGAngle& fromAngle = fromAngleAndEnumeration.first; 93 SVGAngle& toAngle = toAngleAndEnumeration.first; 94 toAngle.setValue(toAngle.value() + fromAngle.value()); 95} 96 97void SVGAnimatedAngleAnimator::calculateAnimatedValue(float percentage, unsigned repeatCount, SVGAnimatedType* from, SVGAnimatedType* to, SVGAnimatedType* toAtEndOfDuration, SVGAnimatedType* animated) 98{ 99 ASSERT(m_animationElement); 100 ASSERT(m_contextElement); 101 102 const pair<SVGAngle, unsigned>& fromAngleAndEnumeration = m_animationElement->animationMode() == ToAnimation ? animated->angleAndEnumeration() : from->angleAndEnumeration(); 103 const pair<SVGAngle, unsigned>& toAngleAndEnumeration = to->angleAndEnumeration(); 104 const pair<SVGAngle, unsigned>& toAtEndOfDurationAngleAndEnumeration = toAtEndOfDuration->angleAndEnumeration(); 105 pair<SVGAngle, unsigned>& animatedAngleAndEnumeration = animated->angleAndEnumeration(); 106 107 if (fromAngleAndEnumeration.second != toAngleAndEnumeration.second) { 108 // Animating from eg. auto to 90deg, or auto to 90deg. 109 if (fromAngleAndEnumeration.second == SVGMarkerOrientAngle) { 110 // Animating from an angle value to eg. 'auto' - this disabled additive as 'auto' is a keyword.. 111 if (toAngleAndEnumeration.second == SVGMarkerOrientAuto) { 112 if (percentage < 0.5f) { 113 animatedAngleAndEnumeration.first = fromAngleAndEnumeration.first; 114 animatedAngleAndEnumeration.second = SVGMarkerOrientAngle; 115 return; 116 } 117 animatedAngleAndEnumeration.first.setValue(0); 118 animatedAngleAndEnumeration.second = SVGMarkerOrientAuto; 119 return; 120 } 121 animatedAngleAndEnumeration.first.setValue(0); 122 animatedAngleAndEnumeration.second = SVGMarkerOrientUnknown; 123 return; 124 } 125 } 126 127 // From 'auto' to 'auto'. 128 if (fromAngleAndEnumeration.second == SVGMarkerOrientAuto) { 129 animatedAngleAndEnumeration.first.setValue(0); 130 animatedAngleAndEnumeration.second = SVGMarkerOrientAuto; 131 return; 132 } 133 134 // If the enumeration value is not angle or auto, its unknown. 135 if (fromAngleAndEnumeration.second != SVGMarkerOrientAngle) { 136 animatedAngleAndEnumeration.first.setValue(0); 137 animatedAngleAndEnumeration.second = SVGMarkerOrientUnknown; 138 return; 139 } 140 141 // Regular from angle to angle animation, with all features like additive etc. 142 animatedAngleAndEnumeration.second = SVGMarkerOrientAngle; 143 144 SVGAngle& animatedSVGAngle = animatedAngleAndEnumeration.first; 145 const SVGAngle& toAtEndOfDurationSVGAngle = toAtEndOfDurationAngleAndEnumeration.first; 146 float animatedAngle = animatedSVGAngle.value(); 147 m_animationElement->animateAdditiveNumber(percentage, repeatCount, fromAngleAndEnumeration.first.value(), toAngleAndEnumeration.first.value(), toAtEndOfDurationSVGAngle.value(), animatedAngle); 148 animatedSVGAngle.setValue(animatedAngle); 149} 150 151float SVGAnimatedAngleAnimator::calculateDistance(const String& fromString, const String& toString) 152{ 153 SVGAngle from = SVGAngle(); 154 from.setValueAsString(fromString, ASSERT_NO_EXCEPTION); 155 SVGAngle to = SVGAngle(); 156 to.setValueAsString(toString, ASSERT_NO_EXCEPTION); 157 return fabsf(to.value() - from.value()); 158} 159 160} 161 162#endif // ENABLE(SVG) 163