| /* |
| * Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org> |
| * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org> |
| * Copyright (C) Research In Motion Limited 2010. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "config.h" |
| |
| #include "core/svg/SVGGradientElement.h" |
| |
| #include "core/XLinkNames.h" |
| #include "core/dom/Attribute.h" |
| #include "core/rendering/svg/RenderSVGPath.h" |
| #include "core/rendering/svg/RenderSVGResourceLinearGradient.h" |
| #include "core/rendering/svg/RenderSVGResourceRadialGradient.h" |
| #include "core/svg/SVGStopElement.h" |
| #include "core/svg/SVGTransformList.h" |
| |
| namespace WebCore { |
| |
| template<> const SVGEnumerationStringEntries& getStaticStringEntries<SVGSpreadMethodType>() |
| { |
| DEFINE_STATIC_LOCAL(SVGEnumerationStringEntries, entries, ()); |
| if (entries.isEmpty()) { |
| entries.append(std::make_pair(SVGSpreadMethodPad, "pad")); |
| entries.append(std::make_pair(SVGSpreadMethodReflect, "reflect")); |
| entries.append(std::make_pair(SVGSpreadMethodRepeat, "repeat")); |
| } |
| return entries; |
| } |
| |
| SVGGradientElement::SVGGradientElement(const QualifiedName& tagName, Document& document) |
| : SVGElement(tagName, document) |
| , SVGURIReference(this) |
| , m_gradientTransform(SVGAnimatedTransformList::create(this, SVGNames::gradientTransformAttr, SVGTransformList::create())) |
| , m_spreadMethod(SVGAnimatedEnumeration<SVGSpreadMethodType>::create(this, SVGNames::spreadMethodAttr, SVGSpreadMethodPad)) |
| , m_gradientUnits(SVGAnimatedEnumeration<SVGUnitTypes::SVGUnitType>::create(this, SVGNames::gradientUnitsAttr, SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX)) |
| { |
| addToPropertyMap(m_gradientTransform); |
| addToPropertyMap(m_spreadMethod); |
| addToPropertyMap(m_gradientUnits); |
| } |
| |
| bool SVGGradientElement::isSupportedAttribute(const QualifiedName& attrName) |
| { |
| DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ()); |
| if (supportedAttributes.isEmpty()) { |
| SVGURIReference::addSupportedAttributes(supportedAttributes); |
| supportedAttributes.add(SVGNames::gradientUnitsAttr); |
| supportedAttributes.add(SVGNames::gradientTransformAttr); |
| supportedAttributes.add(SVGNames::spreadMethodAttr); |
| } |
| return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName); |
| } |
| |
| void SVGGradientElement::parseAttribute(const QualifiedName& name, const AtomicString& value) |
| { |
| if (!isSupportedAttribute(name)) { |
| SVGElement::parseAttribute(name, value); |
| return; |
| } |
| |
| SVGParsingError parseError = NoError; |
| |
| if (name == SVGNames::gradientTransformAttr) |
| m_gradientTransform->setBaseValueAsString(value, parseError); |
| else if (name == SVGNames::gradientUnitsAttr) |
| m_gradientUnits->setBaseValueAsString(value, parseError); |
| else if (name == SVGNames::spreadMethodAttr) |
| m_spreadMethod->setBaseValueAsString(value, parseError); |
| else if (SVGURIReference::parseAttribute(name, value, parseError)) { |
| } else |
| ASSERT_NOT_REACHED(); |
| |
| reportAttributeParsingError(parseError, name, value); |
| } |
| |
| void SVGGradientElement::svgAttributeChanged(const QualifiedName& attrName) |
| { |
| if (!isSupportedAttribute(attrName)) { |
| SVGElement::svgAttributeChanged(attrName); |
| return; |
| } |
| |
| SVGElement::InvalidationGuard invalidationGuard(this); |
| |
| RenderSVGResourceContainer* renderer = toRenderSVGResourceContainer(this->renderer()); |
| if (renderer) |
| renderer->invalidateCacheAndMarkForLayout(); |
| } |
| |
| void SVGGradientElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta) |
| { |
| SVGElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta); |
| |
| if (changedByParser) |
| return; |
| |
| if (RenderObject* object = renderer()) |
| object->setNeedsLayoutAndFullPaintInvalidation(); |
| } |
| |
| Vector<Gradient::ColorStop> SVGGradientElement::buildStops() |
| { |
| Vector<Gradient::ColorStop> stops; |
| |
| float previousOffset = 0.0f; |
| for (SVGStopElement* stop = Traversal<SVGStopElement>::firstChild(*this); stop; stop = Traversal<SVGStopElement>::nextSibling(*stop)) { |
| // Figure out right monotonic offset |
| float offset = stop->offset()->currentValue()->value(); |
| offset = std::min(std::max(previousOffset, offset), 1.0f); |
| previousOffset = offset; |
| |
| stops.append(Gradient::ColorStop(offset, stop->stopColorIncludingOpacity())); |
| } |
| |
| return stops; |
| } |
| |
| } |