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