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/*
* Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 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 "SVGPathElement.h"
#include "Attribute.h"
#include "RenderSVGPath.h"
#include "RenderSVGResource.h"
#include "SVGNames.h"
#include "SVGPathParserFactory.h"
#include "SVGPathSegArc.h"
#include "SVGPathSegClosePath.h"
#include "SVGPathSegCurvetoCubic.h"
#include "SVGPathSegCurvetoCubicSmooth.h"
#include "SVGPathSegCurvetoQuadratic.h"
#include "SVGPathSegCurvetoQuadraticSmooth.h"
#include "SVGPathSegLineto.h"
#include "SVGPathSegLinetoHorizontal.h"
#include "SVGPathSegLinetoVertical.h"
#include "SVGPathSegList.h"
#include "SVGPathSegListBuilder.h"
#include "SVGPathSegListPropertyTearOff.h"
#include "SVGPathSegMoveto.h"
#include "SVGSVGElement.h"
namespace WebCore {
// Animated property definitions
DEFINE_ANIMATED_NUMBER(SVGPathElement, SVGNames::pathLengthAttr, PathLength, pathLength)
DEFINE_ANIMATED_BOOLEAN(SVGPathElement, SVGNames::externalResourcesRequiredAttr, ExternalResourcesRequired, externalResourcesRequired)
inline SVGPathElement::SVGPathElement(const QualifiedName& tagName, Document* document)
: SVGStyledTransformableElement(tagName, document)
, m_pathByteStream(SVGPathByteStream::create())
, m_pathSegList(PathSegUnalteredRole)
{
}
PassRefPtr<SVGPathElement> SVGPathElement::create(const QualifiedName& tagName, Document* document)
{
return adoptRef(new SVGPathElement(tagName, document));
}
float SVGPathElement::getTotalLength()
{
// FIXME: this may wish to use the pathSegList instead of the pathdata if that's cheaper to build (or cached)
Path path;
toPathData(path);
return path.length();
}
FloatPoint SVGPathElement::getPointAtLength(float length)
{
// FIXME: this may wish to use the pathSegList instead of the pathdata if that's cheaper to build (or cached)
bool ok = false;
Path path;
toPathData(path);
return path.pointAtLength(length, ok);
}
unsigned long SVGPathElement::getPathSegAtLength(float length)
{
SVGPathParserFactory* factory = SVGPathParserFactory::self();
unsigned long pathSeg = 0;
factory->getSVGPathSegAtLengthFromSVGPathByteStream(m_pathByteStream.get(), length, pathSeg);
return pathSeg;
}
PassRefPtr<SVGPathSegClosePath> SVGPathElement::createSVGPathSegClosePath(SVGPathSegRole role)
{
return SVGPathSegClosePath::create(this, role);
}
PassRefPtr<SVGPathSegMovetoAbs> SVGPathElement::createSVGPathSegMovetoAbs(float x, float y, SVGPathSegRole role)
{
return SVGPathSegMovetoAbs::create(this, role, x, y);
}
PassRefPtr<SVGPathSegMovetoRel> SVGPathElement::createSVGPathSegMovetoRel(float x, float y, SVGPathSegRole role)
{
return SVGPathSegMovetoRel::create(this, role, x, y);
}
PassRefPtr<SVGPathSegLinetoAbs> SVGPathElement::createSVGPathSegLinetoAbs(float x, float y, SVGPathSegRole role)
{
return SVGPathSegLinetoAbs::create(this, role, x, y);
}
PassRefPtr<SVGPathSegLinetoRel> SVGPathElement::createSVGPathSegLinetoRel(float x, float y, SVGPathSegRole role)
{
return SVGPathSegLinetoRel::create(this, role, x, y);
}
PassRefPtr<SVGPathSegCurvetoCubicAbs> SVGPathElement::createSVGPathSegCurvetoCubicAbs(float x, float y, float x1, float y1, float x2, float y2, SVGPathSegRole role)
{
return SVGPathSegCurvetoCubicAbs::create(this, role, x, y, x1, y1, x2, y2);
}
PassRefPtr<SVGPathSegCurvetoCubicRel> SVGPathElement::createSVGPathSegCurvetoCubicRel(float x, float y, float x1, float y1, float x2, float y2, SVGPathSegRole role)
{
return SVGPathSegCurvetoCubicRel::create(this, role, x, y, x1, y1, x2, y2);
}
PassRefPtr<SVGPathSegCurvetoQuadraticAbs> SVGPathElement::createSVGPathSegCurvetoQuadraticAbs(float x, float y, float x1, float y1, SVGPathSegRole role)
{
return SVGPathSegCurvetoQuadraticAbs::create(this, role, x, y, x1, y1);
}
PassRefPtr<SVGPathSegCurvetoQuadraticRel> SVGPathElement::createSVGPathSegCurvetoQuadraticRel(float x, float y, float x1, float y1, SVGPathSegRole role)
{
return SVGPathSegCurvetoQuadraticRel::create(this, role, x, y, x1, y1);
}
PassRefPtr<SVGPathSegArcAbs> SVGPathElement::createSVGPathSegArcAbs(float x, float y, float r1, float r2, float angle, bool largeArcFlag, bool sweepFlag, SVGPathSegRole role)
{
return SVGPathSegArcAbs::create(this, role, x, y, r1, r2, angle, largeArcFlag, sweepFlag);
}
PassRefPtr<SVGPathSegArcRel> SVGPathElement::createSVGPathSegArcRel(float x, float y, float r1, float r2, float angle, bool largeArcFlag, bool sweepFlag, SVGPathSegRole role)
{
return SVGPathSegArcRel::create(this, role, x, y, r1, r2, angle, largeArcFlag, sweepFlag);
}
PassRefPtr<SVGPathSegLinetoHorizontalAbs> SVGPathElement::createSVGPathSegLinetoHorizontalAbs(float x, SVGPathSegRole role)
{
return SVGPathSegLinetoHorizontalAbs::create(this, role, x);
}
PassRefPtr<SVGPathSegLinetoHorizontalRel> SVGPathElement::createSVGPathSegLinetoHorizontalRel(float x, SVGPathSegRole role)
{
return SVGPathSegLinetoHorizontalRel::create(this, role, x);
}
PassRefPtr<SVGPathSegLinetoVerticalAbs> SVGPathElement::createSVGPathSegLinetoVerticalAbs(float y, SVGPathSegRole role)
{
return SVGPathSegLinetoVerticalAbs::create(this, role, y);
}
PassRefPtr<SVGPathSegLinetoVerticalRel> SVGPathElement::createSVGPathSegLinetoVerticalRel(float y, SVGPathSegRole role)
{
return SVGPathSegLinetoVerticalRel::create(this, role, y);
}
PassRefPtr<SVGPathSegCurvetoCubicSmoothAbs> SVGPathElement::createSVGPathSegCurvetoCubicSmoothAbs(float x, float y, float x2, float y2, SVGPathSegRole role)
{
return SVGPathSegCurvetoCubicSmoothAbs::create(this, role, x, y, x2, y2);
}
PassRefPtr<SVGPathSegCurvetoCubicSmoothRel> SVGPathElement::createSVGPathSegCurvetoCubicSmoothRel(float x, float y, float x2, float y2, SVGPathSegRole role)
{
return SVGPathSegCurvetoCubicSmoothRel::create(this, role, x, y, x2, y2);
}
PassRefPtr<SVGPathSegCurvetoQuadraticSmoothAbs> SVGPathElement::createSVGPathSegCurvetoQuadraticSmoothAbs(float x, float y, SVGPathSegRole role)
{
return SVGPathSegCurvetoQuadraticSmoothAbs::create(this, role, x, y);
}
PassRefPtr<SVGPathSegCurvetoQuadraticSmoothRel> SVGPathElement::createSVGPathSegCurvetoQuadraticSmoothRel(float x, float y, SVGPathSegRole role)
{
return SVGPathSegCurvetoQuadraticSmoothRel::create(this, role, x, y);
}
void SVGPathElement::parseMappedAttribute(Attribute* attr)
{
if (attr->name() == SVGNames::dAttr) {
SVGPathParserFactory* factory = SVGPathParserFactory::self();
if (!factory->buildSVGPathByteStreamFromString(attr->value(), m_pathByteStream, UnalteredParsing))
document()->accessSVGExtensions()->reportError("Problem parsing d=\"" + attr->value() + "\"");
} else if (attr->name() == SVGNames::pathLengthAttr) {
setPathLengthBaseValue(attr->value().toFloat());
if (pathLengthBaseValue() < 0.0f)
document()->accessSVGExtensions()->reportError("A negative value for path attribute <pathLength> is not allowed");
} else {
if (SVGTests::parseMappedAttribute(attr))
return;
if (SVGLangSpace::parseMappedAttribute(attr))
return;
if (SVGExternalResourcesRequired::parseMappedAttribute(attr))
return;
SVGStyledTransformableElement::parseMappedAttribute(attr);
}
}
void SVGPathElement::svgAttributeChanged(const QualifiedName& attrName)
{
SVGStyledTransformableElement::svgAttributeChanged(attrName);
if (SVGTests::handleAttributeChange(this, attrName))
return;
RenderSVGPath* renderer = static_cast<RenderSVGPath*>(this->renderer());
if (attrName == SVGNames::dAttr) {
if (m_animatablePathSegList) {
SVGPathSegList newList(PathSegUnalteredRole);
SVGPathParserFactory* factory = SVGPathParserFactory::self();
factory->buildSVGPathSegListFromByteStream(m_pathByteStream.get(), this, newList, UnalteredParsing);
m_pathSegList.value = newList;
}
if (!renderer)
return;
renderer->setNeedsPathUpdate();
RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
return;
}
if (!renderer)
return;
if (attrName == SVGNames::pathLengthAttr
|| SVGLangSpace::isKnownAttribute(attrName)
|| SVGExternalResourcesRequired::isKnownAttribute(attrName))
RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
}
void SVGPathElement::synchronizeProperty(const QualifiedName& attrName)
{
SVGStyledTransformableElement::synchronizeProperty(attrName);
if (attrName == anyQName()) {
synchronizeD();
synchronizePathLength();
synchronizeExternalResourcesRequired();
SVGTests::synchronizeProperties(this, attrName);
return;
}
if (attrName == SVGNames::dAttr)
synchronizeD();
else if (attrName == SVGNames::pathLengthAttr)
synchronizePathLength();
else if (SVGExternalResourcesRequired::isKnownAttribute(attrName))
synchronizeExternalResourcesRequired();
else if (SVGTests::isKnownAttribute(attrName))
SVGTests::synchronizeProperties(this, attrName);
}
void SVGPathElement::synchronizeD()
{
if (!m_pathSegList.shouldSynchronize)
return;
SVGAnimatedPropertySynchronizer<true>::synchronize(this, SVGNames::dAttr, m_pathSegList.value.valueAsString());
}
AttributeToPropertyTypeMap& SVGPathElement::attributeToPropertyTypeMap()
{
DEFINE_STATIC_LOCAL(AttributeToPropertyTypeMap, s_attributeToPropertyTypeMap, ());
return s_attributeToPropertyTypeMap;
}
void SVGPathElement::fillAttributeToPropertyTypeMap()
{
AttributeToPropertyTypeMap& attributeToPropertyTypeMap = this->attributeToPropertyTypeMap();
SVGStyledTransformableElement::fillPassedAttributeToPropertyTypeMap(attributeToPropertyTypeMap);
attributeToPropertyTypeMap.set(SVGNames::dAttr, AnimatedPath);
attributeToPropertyTypeMap.set(SVGNames::pathLengthAttr, AnimatedNumber);
}
SVGPathSegListPropertyTearOff* SVGPathElement::pathSegList()
{
if (!m_animatablePathSegList) {
m_pathSegList.shouldSynchronize = true;
SVGPathParserFactory* factory = SVGPathParserFactory::self();
factory->buildSVGPathSegListFromByteStream(m_pathByteStream.get(), this, m_pathSegList.value, UnalteredParsing);
m_animatablePathSegList = SVGAnimatedProperty::lookupOrCreateWrapper<SVGAnimatedPathSegListPropertyTearOff, SVGPathSegList>
(this, SVGNames::dAttr, SVGNames::dAttr.localName(), m_pathSegList.value);
}
return static_cast<SVGPathSegListPropertyTearOff*>(m_animatablePathSegList->baseVal(PathSegUnalteredRole));
}
SVGPathSegListPropertyTearOff* SVGPathElement::normalizedPathSegList()
{
// FIXME: https://bugs.webkit.org/show_bug.cgi?id=15412 - Implement normalized path segment lists!
return 0;
}
SVGPathSegListPropertyTearOff* SVGPathElement::animatedPathSegList()
{
if (!m_animatablePathSegList) {
m_pathSegList.shouldSynchronize = true;
SVGPathParserFactory* factory = SVGPathParserFactory::self();
factory->buildSVGPathSegListFromByteStream(m_pathByteStream.get(), this, m_pathSegList.value, UnalteredParsing);
m_animatablePathSegList = SVGAnimatedProperty::lookupOrCreateWrapper<SVGAnimatedPathSegListPropertyTearOff, SVGPathSegList>
(this, SVGNames::dAttr, SVGNames::dAttr.localName(), m_pathSegList.value);
}
return static_cast<SVGPathSegListPropertyTearOff*>(m_animatablePathSegList->animVal(PathSegUnalteredRole));
}
SVGPathSegListPropertyTearOff* SVGPathElement::animatedNormalizedPathSegList()
{
// FIXME: https://bugs.webkit.org/show_bug.cgi?id=15412 - Implement normalized path segment lists!
return 0;
}
void SVGPathElement::toPathData(Path& path) const
{
ASSERT(path.isEmpty());
SVGPathParserFactory* factory = SVGPathParserFactory::self();
factory->buildPathFromByteStream(m_pathByteStream.get(), path);
}
void SVGPathElement::pathSegListChanged(SVGPathSegRole role)
{
SVGPathParserFactory* factory = SVGPathParserFactory::self();
switch (role) {
case PathSegNormalizedRole:
// FIXME: https://bugs.webkit.org/show_bug.cgi?id=15412 - Implement normalized path segment lists!
break;
case PathSegUnalteredRole:
m_pathByteStream->clear();
factory->buildSVGPathByteStreamFromSVGPathSegList(m_pathSegList.value, m_pathByteStream, UnalteredParsing);
break;
case PathSegUndefinedRole:
return;
}
invalidateSVGAttributes();
RenderSVGPath* renderer = static_cast<RenderSVGPath*>(this->renderer());
if (!renderer)
return;
renderer->setNeedsPathUpdate();
RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
}
}
#endif // ENABLE(SVG)