WebCore/svg/SVGPathElement.cpp
changeset 0 4f2f89ce4247
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/svg/SVGPathElement.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,270 @@
+/*
+    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 "SVGPathElement.h"
+
+#include "Attribute.h"
+#include "RenderPath.h"
+#include "RenderSVGResource.h"
+#include "SVGNames.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 "SVGPathSegMoveto.h"
+#include "SVGSVGElement.h"
+
+namespace WebCore {
+
+SVGPathElement::SVGPathElement(const QualifiedName& tagName, Document* doc)
+    : SVGStyledTransformableElement(tagName, doc)
+    , SVGTests()
+    , SVGLangSpace()
+    , SVGExternalResourcesRequired()
+{
+}
+
+SVGPathElement::~SVGPathElement()
+{
+}
+
+float SVGPathElement::getTotalLength()
+{
+    // FIXME: this may wish to use the pathSegList instead of the pathdata if that's cheaper to build (or cached)
+    return toPathData().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;
+    return toPathData().pointAtLength(length, ok);
+}
+
+unsigned long SVGPathElement::getPathSegAtLength(float length, ExceptionCode& ec)
+{
+    return pathSegList()->getPathSegAtLength(length, ec);
+}
+
+PassRefPtr<SVGPathSegClosePath> SVGPathElement::createSVGPathSegClosePath()
+{
+    return SVGPathSegClosePath::create();
+}
+
+PassRefPtr<SVGPathSegMovetoAbs> SVGPathElement::createSVGPathSegMovetoAbs(float x, float y)
+{
+    return SVGPathSegMovetoAbs::create(x, y);
+}
+
+PassRefPtr<SVGPathSegMovetoRel> SVGPathElement::createSVGPathSegMovetoRel(float x, float y)
+{
+    return SVGPathSegMovetoRel::create(x, y);
+}
+
+PassRefPtr<SVGPathSegLinetoAbs> SVGPathElement::createSVGPathSegLinetoAbs(float x, float y)
+{
+    return SVGPathSegLinetoAbs::create(x, y);
+}
+
+PassRefPtr<SVGPathSegLinetoRel> SVGPathElement::createSVGPathSegLinetoRel(float x, float y)
+{
+    return SVGPathSegLinetoRel::create(x, y);
+}
+
+PassRefPtr<SVGPathSegCurvetoCubicAbs> SVGPathElement::createSVGPathSegCurvetoCubicAbs(float x, float y, float x1, float y1, float x2, float y2)
+{
+    return SVGPathSegCurvetoCubicAbs::create(x, y, x1, y1, x2, y2);
+}
+
+PassRefPtr<SVGPathSegCurvetoCubicRel> SVGPathElement::createSVGPathSegCurvetoCubicRel(float x, float y, float x1, float y1, float x2, float y2)
+{
+    return SVGPathSegCurvetoCubicRel::create(x, y, x1, y1, x2, y2);
+}
+
+PassRefPtr<SVGPathSegCurvetoQuadraticAbs> SVGPathElement::createSVGPathSegCurvetoQuadraticAbs(float x, float y, float x1, float y1)
+{
+    return SVGPathSegCurvetoQuadraticAbs::create(x, y, x1, y1);
+}
+
+PassRefPtr<SVGPathSegCurvetoQuadraticRel> SVGPathElement::createSVGPathSegCurvetoQuadraticRel(float x, float y, float x1, float y1)
+{
+    return SVGPathSegCurvetoQuadraticRel::create(x, y, x1, y1);
+}
+
+PassRefPtr<SVGPathSegArcAbs> SVGPathElement::createSVGPathSegArcAbs(float x, float y, float r1, float r2, float angle, bool largeArcFlag, bool sweepFlag)
+{
+    return SVGPathSegArcAbs::create(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)
+{
+    return SVGPathSegArcRel::create(x, y, r1, r2, angle, largeArcFlag, sweepFlag);
+}
+
+PassRefPtr<SVGPathSegLinetoHorizontalAbs> SVGPathElement::createSVGPathSegLinetoHorizontalAbs(float x)
+{
+    return SVGPathSegLinetoHorizontalAbs::create(x);
+}
+
+PassRefPtr<SVGPathSegLinetoHorizontalRel> SVGPathElement::createSVGPathSegLinetoHorizontalRel(float x)
+{
+    return SVGPathSegLinetoHorizontalRel::create(x);
+}
+
+PassRefPtr<SVGPathSegLinetoVerticalAbs> SVGPathElement::createSVGPathSegLinetoVerticalAbs(float y)
+{
+    return SVGPathSegLinetoVerticalAbs::create(y);
+}
+
+PassRefPtr<SVGPathSegLinetoVerticalRel> SVGPathElement::createSVGPathSegLinetoVerticalRel(float y)
+{
+    return SVGPathSegLinetoVerticalRel::create(y);
+}
+
+PassRefPtr<SVGPathSegCurvetoCubicSmoothAbs> SVGPathElement::createSVGPathSegCurvetoCubicSmoothAbs(float x, float y, float x2, float y2)
+{
+    return SVGPathSegCurvetoCubicSmoothAbs::create(x, y, x2, y2);
+}
+
+PassRefPtr<SVGPathSegCurvetoCubicSmoothRel> SVGPathElement::createSVGPathSegCurvetoCubicSmoothRel(float x, float y, float x2, float y2)
+{
+    return SVGPathSegCurvetoCubicSmoothRel::create(x, y, x2, y2);
+}
+
+PassRefPtr<SVGPathSegCurvetoQuadraticSmoothAbs> SVGPathElement::createSVGPathSegCurvetoQuadraticSmoothAbs(float x, float y)
+{
+    return SVGPathSegCurvetoQuadraticSmoothAbs::create(x, y);
+}
+
+PassRefPtr<SVGPathSegCurvetoQuadraticSmoothRel> SVGPathElement::createSVGPathSegCurvetoQuadraticSmoothRel(float x, float y)
+{
+    return SVGPathSegCurvetoQuadraticSmoothRel::create(x, y);
+}
+
+void SVGPathElement::parseMappedAttribute(Attribute* attr)
+{
+    if (attr->name() == SVGNames::dAttr) {
+        ExceptionCode ec;
+        pathSegList()->clear(ec);
+        SVGPathSegListBuilder parser(pathSegList());
+        if (!parser.build(attr->value(), NormalizedParsing))
+            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);
+
+    RenderPath* renderer = static_cast<RenderPath*>(this->renderer());
+    if (!renderer)
+        return;
+
+    if (attrName == SVGNames::dAttr) {
+        renderer->setNeedsPathUpdate();
+        RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
+        return;
+    }
+
+    if (SVGStyledTransformableElement::isKnownAttribute(attrName)) {
+        renderer->setNeedsTransformUpdate();
+        RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
+        return;
+    }
+
+    if (attrName == SVGNames::pathLengthAttr
+        || SVGTests::isKnownAttribute(attrName)
+        || SVGLangSpace::isKnownAttribute(attrName)
+        || SVGExternalResourcesRequired::isKnownAttribute(attrName))
+        RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
+}
+
+void SVGPathElement::synchronizeProperty(const QualifiedName& attrName)
+{
+    SVGStyledTransformableElement::synchronizeProperty(attrName);
+
+    if (attrName == anyQName()) {
+        synchronizePathLength();
+        synchronizeExternalResourcesRequired();
+        return;
+    }
+
+    if (attrName == SVGNames::pathLengthAttr)
+        synchronizePathLength();
+    else if (SVGExternalResourcesRequired::isKnownAttribute(attrName))
+        synchronizeExternalResourcesRequired();
+}
+
+SVGPathSegList* SVGPathElement::pathSegList() const
+{
+    if (!m_pathSegList)
+        m_pathSegList = SVGPathSegList::create(SVGNames::dAttr);
+
+    return m_pathSegList.get();
+}
+
+SVGPathSegList* SVGPathElement::normalizedPathSegList() const
+{
+    // TODO
+    return 0;
+}
+
+SVGPathSegList* SVGPathElement::animatedPathSegList() const
+{
+    // TODO
+    return 0;
+}
+
+SVGPathSegList* SVGPathElement::animatedNormalizedPathSegList() const
+{
+    // TODO
+    return 0;
+}
+
+Path SVGPathElement::toPathData() const
+{
+    return pathSegList()->toPathData();
+}
+
+}
+
+#endif // ENABLE(SVG)