1 /* 2 * Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann (at) kde.org> 3 * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis (at) 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 "core/svg/SVGLineElement.h" 23 24 #include "core/rendering/svg/RenderSVGResource.h" 25 #include "core/rendering/svg/RenderSVGShape.h" 26 #include "core/svg/SVGLength.h" 27 28 namespace blink { 29 30 inline SVGLineElement::SVGLineElement(Document& document) 31 : SVGGeometryElement(SVGNames::lineTag, document) 32 , m_x1(SVGAnimatedLength::create(this, SVGNames::x1Attr, SVGLength::create(LengthModeWidth), AllowNegativeLengths)) 33 , m_y1(SVGAnimatedLength::create(this, SVGNames::y1Attr, SVGLength::create(LengthModeHeight), AllowNegativeLengths)) 34 , m_x2(SVGAnimatedLength::create(this, SVGNames::x2Attr, SVGLength::create(LengthModeWidth), AllowNegativeLengths)) 35 , m_y2(SVGAnimatedLength::create(this, SVGNames::y2Attr, SVGLength::create(LengthModeHeight), AllowNegativeLengths)) 36 { 37 addToPropertyMap(m_x1); 38 addToPropertyMap(m_y1); 39 addToPropertyMap(m_x2); 40 addToPropertyMap(m_y2); 41 } 42 43 DEFINE_NODE_FACTORY(SVGLineElement) 44 45 bool SVGLineElement::isSupportedAttribute(const QualifiedName& attrName) 46 { 47 DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ()); 48 if (supportedAttributes.isEmpty()) { 49 supportedAttributes.add(SVGNames::x1Attr); 50 supportedAttributes.add(SVGNames::x2Attr); 51 supportedAttributes.add(SVGNames::y1Attr); 52 supportedAttributes.add(SVGNames::y2Attr); 53 } 54 return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName); 55 } 56 57 void SVGLineElement::parseAttribute(const QualifiedName& name, const AtomicString& value) 58 { 59 parseAttributeNew(name, value); 60 } 61 62 void SVGLineElement::svgAttributeChanged(const QualifiedName& attrName) 63 { 64 if (!isSupportedAttribute(attrName)) { 65 SVGGeometryElement::svgAttributeChanged(attrName); 66 return; 67 } 68 69 SVGElement::InvalidationGuard invalidationGuard(this); 70 71 bool isLengthAttribute = attrName == SVGNames::x1Attr 72 || attrName == SVGNames::y1Attr 73 || attrName == SVGNames::x2Attr 74 || attrName == SVGNames::y2Attr; 75 76 if (isLengthAttribute) 77 updateRelativeLengthsInformation(); 78 79 RenderSVGShape* renderer = toRenderSVGShape(this->renderer()); 80 if (!renderer) 81 return; 82 83 if (isLengthAttribute) { 84 renderer->setNeedsShapeUpdate(); 85 RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer); 86 return; 87 } 88 89 ASSERT_NOT_REACHED(); 90 } 91 92 bool SVGLineElement::selfHasRelativeLengths() const 93 { 94 return m_x1->currentValue()->isRelative() 95 || m_y1->currentValue()->isRelative() 96 || m_x2->currentValue()->isRelative() 97 || m_y2->currentValue()->isRelative(); 98 } 99 100 } // namespace blink 101
