--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/svg/SVGGradientElement.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,161 @@
+/*
+    Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
+                  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"
+
+#if ENABLE(SVG)
+#include "SVGGradientElement.h"
+
+#include "Attribute.h"
+#include "CSSStyleSelector.h"
+#include "RenderPath.h"
+#include "RenderSVGHiddenContainer.h"
+#include "RenderSVGResourceLinearGradient.h"
+#include "RenderSVGResourceRadialGradient.h"
+#include "SVGNames.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(Attribute* 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 (attrName == SVGNames::gradientUnitsAttr
+        || attrName == SVGNames::gradientTransformAttr
+        || attrName == SVGNames::spreadMethodAttr
+        || SVGURIReference::isKnownAttribute(attrName)
+        || SVGExternalResourcesRequired::isKnownAttribute(attrName)
+        || SVGStyledElement::isKnownAttribute(attrName))
+        invalidateResourceClients();
+}
+
+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 (!changedByParser)
+        invalidateResourceClients();
+}
+
+Vector<Gradient::ColorStop> SVGGradientElement::buildStops()
+{
+    Vector<Gradient::ColorStop> stops;
+
+    float previousOffset = 0.0f;
+    for (Node* n = firstChild(); n; n = n->nextSibling()) {
+        SVGElement* element = n->isSVGElement() ? static_cast<SVGElement*>(n) : 0;
+        if (!element || !element->isGradientStop())
+            continue;
+
+        SVGStopElement* stop = static_cast<SVGStopElement*>(element);
+        Color color = stop->stopColorIncludingOpacity();
+
+        // Figure out right monotonic offset
+        float offset = stop->offset();
+        offset = std::min(std::max(previousOffset, offset), 1.0f);
+        previousOffset = offset;
+
+        // Extract individual channel values
+        // FIXME: Why doesn't ColorStop take a Color and an offset??
+        float r, g, b, a;
+        color.getRGBA(r, g, b, a);
+
+        stops.append(Gradient::ColorStop(offset, r, g, b, a));
+    }
+
+    return stops;
+}
+
+}
+
+#endif // ENABLE(SVG)