diff -r 000000000000 -r 4f2f89ce4247 WebCore/svg/SVGPatternElement.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/svg/SVGPatternElement.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,258 @@
+/*
+    Copyright (C) 2004, 2005, 2006, 2007, 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 "SVGPatternElement.h"
+
+#include "AffineTransform.h"
+#include "Attribute.h"
+#include "Document.h"
+#include "FloatConversion.h"
+#include "GraphicsContext.h"
+#include "ImageBuffer.h"
+#include "PatternAttributes.h"
+#include "RenderSVGContainer.h"
+#include "RenderSVGResourcePattern.h"
+#include "SVGLength.h"
+#include "SVGNames.h"
+#include "SVGRenderSupport.h"
+#include "SVGSVGElement.h"
+#include "SVGStyledTransformableElement.h"
+#include "SVGTransformList.h"
+#include "SVGTransformable.h"
+#include "SVGUnitTypes.h"
+#include <math.h>
+#include <wtf/MathExtras.h>
+#include <wtf/OwnPtr.h>
+
+using namespace std;
+
+namespace WebCore {
+
+SVGPatternElement::SVGPatternElement(const QualifiedName& tagName, Document* doc)
+    : SVGStyledElement(tagName, doc)
+    , SVGURIReference()
+    , SVGTests()
+    , SVGLangSpace()
+    , SVGExternalResourcesRequired()
+    , SVGFitToViewBox()
+    , m_x(LengthModeWidth)
+    , m_y(LengthModeHeight)
+    , m_width(LengthModeWidth)
+    , m_height(LengthModeHeight)
+    , m_patternUnits(SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX)
+    , m_patternContentUnits(SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE)
+    , m_patternTransform(SVGTransformList::create(SVGNames::patternTransformAttr))
+{
+}
+
+SVGPatternElement::~SVGPatternElement()
+{
+}
+
+void SVGPatternElement::parseMappedAttribute(Attribute* attr)
+{
+    if (attr->name() == SVGNames::patternUnitsAttr) {
+        if (attr->value() == "userSpaceOnUse")
+            setPatternUnitsBaseValue(SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE);
+        else if (attr->value() == "objectBoundingBox")
+            setPatternUnitsBaseValue(SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX);
+    } else if (attr->name() == SVGNames::patternContentUnitsAttr) {
+        if (attr->value() == "userSpaceOnUse")
+            setPatternContentUnitsBaseValue(SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE);
+        else if (attr->value() == "objectBoundingBox")
+            setPatternContentUnitsBaseValue(SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX);
+    } else if (attr->name() == SVGNames::patternTransformAttr) {
+        SVGTransformList* patternTransforms = patternTransformBaseValue();
+        if (!SVGTransformable::parseTransformAttribute(patternTransforms, attr->value())) {
+            ExceptionCode ec = 0;
+            patternTransforms->clear(ec);
+        }
+    } else if (attr->name() == SVGNames::xAttr)
+        setXBaseValue(SVGLength(LengthModeWidth, attr->value()));
+    else if (attr->name() == SVGNames::yAttr)
+        setYBaseValue(SVGLength(LengthModeHeight, attr->value()));
+    else if (attr->name() == SVGNames::widthAttr) {
+        setWidthBaseValue(SVGLength(LengthModeWidth, attr->value()));
+        if (widthBaseValue().value(this) < 0.0)
+            document()->accessSVGExtensions()->reportError("A negative value for pattern attribute <width> is not allowed");
+    } else if (attr->name() == SVGNames::heightAttr) {
+        setHeightBaseValue(SVGLength(LengthModeHeight, attr->value()));
+        if (heightBaseValue().value(this) < 0.0)
+            document()->accessSVGExtensions()->reportError("A negative value for pattern attribute <height> is not allowed");
+    } else {
+        if (SVGURIReference::parseMappedAttribute(attr))
+            return;
+        if (SVGTests::parseMappedAttribute(attr))
+            return;
+        if (SVGLangSpace::parseMappedAttribute(attr))
+            return;
+        if (SVGExternalResourcesRequired::parseMappedAttribute(attr))
+            return;
+        if (SVGFitToViewBox::parseMappedAttribute(document(), attr))
+            return;
+
+        SVGStyledElement::parseMappedAttribute(attr);
+    }
+}
+
+void SVGPatternElement::svgAttributeChanged(const QualifiedName& attrName)
+{
+    SVGStyledElement::svgAttributeChanged(attrName);
+
+    bool invalidateClients = false;
+    if (attrName == SVGNames::xAttr
+        || attrName == SVGNames::yAttr
+        || attrName == SVGNames::widthAttr
+        || attrName == SVGNames::heightAttr) {
+        invalidateClients = true;
+        updateRelativeLengthsInformation();
+    }
+
+    if (invalidateClients
+        || attrName == SVGNames::patternUnitsAttr
+        || attrName == SVGNames::patternContentUnitsAttr
+        || attrName == SVGNames::patternTransformAttr
+        || SVGURIReference::isKnownAttribute(attrName)
+        || SVGTests::isKnownAttribute(attrName)
+        || SVGLangSpace::isKnownAttribute(attrName)
+        || SVGExternalResourcesRequired::isKnownAttribute(attrName)
+        || SVGFitToViewBox::isKnownAttribute(attrName)
+        || SVGStyledElement::isKnownAttribute(attrName))
+        invalidateResourceClients();
+}
+
+void SVGPatternElement::synchronizeProperty(const QualifiedName& attrName)
+{
+    SVGStyledElement::synchronizeProperty(attrName);
+
+    if (attrName == anyQName()) {
+        synchronizePatternUnits();
+        synchronizePatternContentUnits();
+        synchronizePatternTransform();
+        synchronizeX();
+        synchronizeY();
+        synchronizeWidth();
+        synchronizeHeight();
+        synchronizeExternalResourcesRequired();
+        synchronizeViewBox();
+        synchronizePreserveAspectRatio();
+        synchronizeHref();
+        return;
+    }
+
+    if (attrName == SVGNames::patternUnitsAttr)
+        synchronizePatternUnits();
+    else if (attrName == SVGNames::patternContentUnitsAttr)
+        synchronizePatternContentUnits();
+    else if (attrName == SVGNames::patternTransformAttr)
+        synchronizePatternTransform();
+    else if (attrName == SVGNames::xAttr)
+        synchronizeX();
+    else if (attrName == SVGNames::yAttr)
+        synchronizeY();
+    else if (attrName == SVGNames::widthAttr)
+        synchronizeWidth();
+    else if (attrName == SVGNames::heightAttr)
+        synchronizeHeight();
+    else if (SVGExternalResourcesRequired::isKnownAttribute(attrName))
+        synchronizeExternalResourcesRequired();
+    else if (SVGFitToViewBox::isKnownAttribute(attrName)) {
+        synchronizeViewBox();
+        synchronizePreserveAspectRatio();
+    } else if (SVGURIReference::isKnownAttribute(attrName))
+        synchronizeHref();
+}
+
+void SVGPatternElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
+{
+    SVGStyledElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
+
+    if (!changedByParser)
+        invalidateResourceClients();
+}
+
+RenderObject* SVGPatternElement::createRenderer(RenderArena* arena, RenderStyle*)
+{
+    return new (arena) RenderSVGResourcePattern(this);
+}
+
+PatternAttributes SVGPatternElement::collectPatternProperties() const
+{
+    PatternAttributes attributes;
+    HashSet<const SVGPatternElement*> processedPatterns;
+
+    const SVGPatternElement* current = this;
+    while (current) {
+        if (!attributes.hasX() && current->hasAttribute(SVGNames::xAttr))
+            attributes.setX(current->x());
+
+        if (!attributes.hasY() && current->hasAttribute(SVGNames::yAttr))
+            attributes.setY(current->y());
+
+        if (!attributes.hasWidth() && current->hasAttribute(SVGNames::widthAttr))
+            attributes.setWidth(current->width());
+
+        if (!attributes.hasHeight() && current->hasAttribute(SVGNames::heightAttr))
+            attributes.setHeight(current->height());
+
+        if (!attributes.hasBoundingBoxMode() && current->hasAttribute(SVGNames::patternUnitsAttr))
+            attributes.setBoundingBoxMode(current->patternUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX);
+
+        if (!attributes.hasBoundingBoxModeContent() && current->hasAttribute(SVGNames::patternContentUnitsAttr))
+            attributes.setBoundingBoxModeContent(current->patternContentUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX);
+
+        if (!attributes.hasPatternTransform() && current->hasAttribute(SVGNames::patternTransformAttr))
+            attributes.setPatternTransform(current->patternTransform()->consolidate().matrix());
+
+        if (!attributes.hasPatternContentElement() && current->hasChildNodes())
+            attributes.setPatternContentElement(current);
+
+        processedPatterns.add(current);
+
+        // Respect xlink:href, take attributes from referenced element
+        Node* refNode = ownerDocument()->getElementById(SVGURIReference::getTarget(current->href()));
+        if (refNode && refNode->hasTagName(SVGNames::patternTag)) {
+            current = static_cast<const SVGPatternElement*>(const_cast<const Node*>(refNode));
+
+            // Cycle detection
+            if (processedPatterns.contains(current))
+                return PatternAttributes();
+        } else
+            current = 0;
+    }
+
+    return attributes;
+}
+
+bool SVGPatternElement::selfHasRelativeLengths() const
+{
+    return x().isRelative()
+        || y().isRelative()
+        || width().isRelative()
+        || height().isRelative();
+}
+
+}
+
+#endif // ENABLE(SVG)