/* | |
Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org> | |
2004, 2005, 2006, 2007 Rob Buis <buis@kde.org> | |
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" | |
#if ENABLE(SVG) | |
#include "SVGGradientElement.h" | |
#include "CSSStyleSelector.h" | |
#include "MappedAttribute.h" | |
#include "RenderPath.h" | |
#include "RenderSVGHiddenContainer.h" | |
#include "SVGNames.h" | |
#include "SVGPaintServerLinearGradient.h" | |
#include "SVGPaintServerRadialGradient.h" | |
#include "SVGStopElement.h" | |
#include "SVGTransformList.h" | |
#include "SVGTransformable.h" | |
#include "SVGUnitTypes.h" | |
namespace WebCore { | |
SVGGradientElement::SVGGradientElement(const QualifiedName& tagName, Document* doc) | |
: SVGStyledElement(tagName, doc) | |
, SVGURIReference() | |
, SVGExternalResourcesRequired() | |
, m_gradientUnits(SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX) | |
, m_gradientTransform(SVGTransformList::create(SVGNames::gradientTransformAttr)) | |
{ | |
} | |
SVGGradientElement::~SVGGradientElement() | |
{ | |
} | |
void SVGGradientElement::parseMappedAttribute(MappedAttribute* attr) | |
{ | |
if (attr->name() == SVGNames::gradientUnitsAttr) { | |
if (attr->value() == "userSpaceOnUse") | |
setGradientUnitsBaseValue(SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE); | |
else if (attr->value() == "objectBoundingBox") | |
setGradientUnitsBaseValue(SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX); | |
} else if (attr->name() == SVGNames::gradientTransformAttr) { | |
SVGTransformList* gradientTransforms = gradientTransformBaseValue(); | |
if (!SVGTransformable::parseTransformAttribute(gradientTransforms, attr->value())) { | |
ExceptionCode ec = 0; | |
gradientTransforms->clear(ec); | |
} | |
} else if (attr->name() == SVGNames::spreadMethodAttr) { | |
if (attr->value() == "reflect") | |
setSpreadMethodBaseValue(SpreadMethodReflect); | |
else if (attr->value() == "repeat") | |
setSpreadMethodBaseValue(SpreadMethodRepeat); | |
else if (attr->value() == "pad") | |
setSpreadMethodBaseValue(SpreadMethodPad); | |
} else { | |
if (SVGURIReference::parseMappedAttribute(attr)) | |
return; | |
if (SVGExternalResourcesRequired::parseMappedAttribute(attr)) | |
return; | |
SVGStyledElement::parseMappedAttribute(attr); | |
} | |
} | |
void SVGGradientElement::svgAttributeChanged(const QualifiedName& attrName) | |
{ | |
SVGStyledElement::svgAttributeChanged(attrName); | |
if (!m_resource) | |
return; | |
if (attrName == SVGNames::gradientUnitsAttr || | |
attrName == SVGNames::gradientTransformAttr || | |
attrName == SVGNames::spreadMethodAttr || | |
SVGURIReference::isKnownAttribute(attrName) || | |
SVGExternalResourcesRequired::isKnownAttribute(attrName) || | |
SVGStyledElement::isKnownAttribute(attrName)) | |
m_resource->invalidate(); | |
} | |
void SVGGradientElement::synchronizeProperty(const QualifiedName& attrName) | |
{ | |
SVGStyledElement::synchronizeProperty(attrName); | |
if (attrName == anyQName()) { | |
synchronizeGradientUnits(); | |
synchronizeGradientTransform(); | |
synchronizeSpreadMethod(); | |
synchronizeExternalResourcesRequired(); | |
synchronizeHref(); | |
return; | |
} | |
if (attrName == SVGNames::gradientUnitsAttr) | |
synchronizeGradientUnits(); | |
else if (attrName == SVGNames::gradientTransformAttr) | |
synchronizeGradientTransform(); | |
else if (attrName == SVGNames::spreadMethodAttr) | |
synchronizeSpreadMethod(); | |
else if (SVGExternalResourcesRequired::isKnownAttribute(attrName)) | |
synchronizeExternalResourcesRequired(); | |
else if (SVGURIReference::isKnownAttribute(attrName)) | |
synchronizeHref(); | |
} | |
void SVGGradientElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta) | |
{ | |
SVGStyledElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta); | |
if (m_resource) | |
m_resource->invalidate(); | |
} | |
RenderObject* SVGGradientElement::createRenderer(RenderArena* arena, RenderStyle*) | |
{ | |
return new (arena) RenderSVGHiddenContainer(this); | |
} | |
SVGResource* SVGGradientElement::canvasResource(const RenderObject*) | |
{ | |
if (!m_resource) { | |
if (gradientType() == LinearGradientPaintServer) | |
m_resource = SVGPaintServerLinearGradient::create(this); | |
else | |
m_resource = SVGPaintServerRadialGradient::create(this); | |
} | |
return m_resource.get(); | |
} | |
Vector<SVGGradientStop> SVGGradientElement::buildStops() const | |
{ | |
Vector<SVGGradientStop> stops; | |
RefPtr<RenderStyle> gradientStyle; | |
for (Node* n = firstChild(); n; n = n->nextSibling()) { | |
SVGElement* element = n->isSVGElement() ? static_cast<SVGElement*>(n) : 0; | |
if (element && element->isGradientStop()) { | |
SVGStopElement* stop = static_cast<SVGStopElement*>(element); | |
float stopOffset = stop->offset(); | |
Color color; | |
float opacity; | |
if (stop->renderer()) { | |
RenderStyle* stopStyle = stop->renderer()->style(); | |
color = stopStyle->svgStyle()->stopColor(); | |
opacity = stopStyle->svgStyle()->stopOpacity(); | |
} else { | |
// If there is no renderer for this stop element, then a parent element | |
// set display="none" - ie. <g display="none"><linearGradient><stop>.. | |
// Unfortunately we have to manually rebuild the stop style. See pservers-grad-19-b.svg | |
if (!gradientStyle) | |
gradientStyle = const_cast<SVGGradientElement*>(this)->styleForRenderer(); | |
RefPtr<RenderStyle> stopStyle = stop->resolveStyle(gradientStyle.get()); | |
color = stopStyle->svgStyle()->stopColor(); | |
opacity = stopStyle->svgStyle()->stopOpacity(); | |
} | |
stops.append(makeGradientStop(stopOffset, makeRGBA(color.red(), color.green(), color.blue(), int(opacity * 255.)))); | |
} | |
} | |
return stops; | |
} | |
} | |
#endif // ENABLE(SVG) |