1/* 2 * Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org> 3 * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org> 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public License 16 * along with this library; see the file COPYING.LIB. If not, write to 17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 */ 20 21#include "config.h" 22#include "SVGLineElement.h" 23 24#include "Attribute.h" 25#include "FloatPoint.h" 26#include "RenderSVGPath.h" 27#include "RenderSVGResource.h" 28#include "SVGElementInstance.h" 29#include "SVGLength.h" 30#include "SVGNames.h" 31#include <wtf/NeverDestroyed.h> 32 33namespace WebCore { 34 35// Animated property definitions 36DEFINE_ANIMATED_LENGTH(SVGLineElement, SVGNames::x1Attr, X1, x1) 37DEFINE_ANIMATED_LENGTH(SVGLineElement, SVGNames::y1Attr, Y1, y1) 38DEFINE_ANIMATED_LENGTH(SVGLineElement, SVGNames::x2Attr, X2, x2) 39DEFINE_ANIMATED_LENGTH(SVGLineElement, SVGNames::y2Attr, Y2, y2) 40DEFINE_ANIMATED_BOOLEAN(SVGLineElement, SVGNames::externalResourcesRequiredAttr, ExternalResourcesRequired, externalResourcesRequired) 41 42BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGLineElement) 43 REGISTER_LOCAL_ANIMATED_PROPERTY(x1) 44 REGISTER_LOCAL_ANIMATED_PROPERTY(y1) 45 REGISTER_LOCAL_ANIMATED_PROPERTY(x2) 46 REGISTER_LOCAL_ANIMATED_PROPERTY(y2) 47 REGISTER_LOCAL_ANIMATED_PROPERTY(externalResourcesRequired) 48 REGISTER_PARENT_ANIMATED_PROPERTIES(SVGGraphicsElement) 49END_REGISTER_ANIMATED_PROPERTIES 50 51inline SVGLineElement::SVGLineElement(const QualifiedName& tagName, Document& document) 52 : SVGGraphicsElement(tagName, document) 53 , m_x1(LengthModeWidth) 54 , m_y1(LengthModeHeight) 55 , m_x2(LengthModeWidth) 56 , m_y2(LengthModeHeight) 57{ 58 ASSERT(hasTagName(SVGNames::lineTag)); 59 registerAnimatedPropertiesForSVGLineElement(); 60} 61 62PassRefPtr<SVGLineElement> SVGLineElement::create(const QualifiedName& tagName, Document& document) 63{ 64 return adoptRef(new SVGLineElement(tagName, document)); 65} 66 67bool SVGLineElement::isSupportedAttribute(const QualifiedName& attrName) 68{ 69 static NeverDestroyed<HashSet<QualifiedName>> supportedAttributes; 70 if (supportedAttributes.get().isEmpty()) { 71 SVGLangSpace::addSupportedAttributes(supportedAttributes); 72 SVGExternalResourcesRequired::addSupportedAttributes(supportedAttributes); 73 supportedAttributes.get().add(SVGNames::x1Attr); 74 supportedAttributes.get().add(SVGNames::x2Attr); 75 supportedAttributes.get().add(SVGNames::y1Attr); 76 supportedAttributes.get().add(SVGNames::y2Attr); 77 } 78 return supportedAttributes.get().contains<SVGAttributeHashTranslator>(attrName); 79} 80 81void SVGLineElement::parseAttribute(const QualifiedName& name, const AtomicString& value) 82{ 83 SVGParsingError parseError = NoError; 84 85 if (!isSupportedAttribute(name)) 86 SVGGraphicsElement::parseAttribute(name, value); 87 else if (name == SVGNames::x1Attr) 88 setX1BaseValue(SVGLength::construct(LengthModeWidth, value, parseError)); 89 else if (name == SVGNames::y1Attr) 90 setY1BaseValue(SVGLength::construct(LengthModeHeight, value, parseError)); 91 else if (name == SVGNames::x2Attr) 92 setX2BaseValue(SVGLength::construct(LengthModeWidth, value, parseError)); 93 else if (name == SVGNames::y2Attr) 94 setY2BaseValue(SVGLength::construct(LengthModeHeight, value, parseError)); 95 else if (SVGLangSpace::parseAttribute(name, value) 96 || SVGExternalResourcesRequired::parseAttribute(name, value)) { 97 } else 98 ASSERT_NOT_REACHED(); 99 100 reportAttributeParsingError(parseError, name, value); 101} 102 103void SVGLineElement::svgAttributeChanged(const QualifiedName& attrName) 104{ 105 if (!isSupportedAttribute(attrName)) { 106 SVGGraphicsElement::svgAttributeChanged(attrName); 107 return; 108 } 109 110 SVGElementInstance::InvalidationGuard invalidationGuard(this); 111 112 bool isLengthAttribute = attrName == SVGNames::x1Attr 113 || attrName == SVGNames::y1Attr 114 || attrName == SVGNames::x2Attr 115 || attrName == SVGNames::y2Attr; 116 117 if (isLengthAttribute) 118 updateRelativeLengthsInformation(); 119 120 RenderSVGShape* renderer = toRenderSVGShape(this->renderer()); 121 if (!renderer) 122 return; 123 124 if (isLengthAttribute) { 125 renderer->setNeedsShapeUpdate(); 126 RenderSVGResource::markForLayoutAndParentResourceInvalidation(*renderer); 127 return; 128 } 129 130 if (SVGLangSpace::isKnownAttribute(attrName) || SVGExternalResourcesRequired::isKnownAttribute(attrName)) { 131 RenderSVGResource::markForLayoutAndParentResourceInvalidation(*renderer); 132 return; 133 } 134 135 ASSERT_NOT_REACHED(); 136} 137 138bool SVGLineElement::selfHasRelativeLengths() const 139{ 140 return x1().isRelative() 141 || y1().isRelative() 142 || x2().isRelative() 143 || y2().isRelative(); 144} 145 146} 147