diff -r 000000000000 -r 4f2f89ce4247 WebCore/rendering/SVGRenderTreeAsText.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/rendering/SVGRenderTreeAsText.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,774 @@
+/*
+ * Copyright (C) 2004, 2005, 2007, 2009 Apple Inc. All rights reserved.
+ *           (C) 2005 Rob Buis <buis@kde.org>
+ *           (C) 2006 Alexander Kellett <lypanov@kde.org>
+ * Copyright (C) Research In Motion Limited 2010. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#if ENABLE(SVG)
+#include "SVGRenderTreeAsText.h"
+
+#include "GraphicsTypes.h"
+#include "HTMLNames.h"
+#include "InlineTextBox.h"
+#include "LinearGradientAttributes.h"
+#include "NodeRenderStyle.h"
+#include "Path.h"
+#include "PatternAttributes.h"
+#include "RadialGradientAttributes.h"
+#include "RenderImage.h"
+#include "RenderPath.h"
+#include "RenderSVGContainer.h"
+#include "RenderSVGGradientStop.h"
+#include "RenderSVGInlineText.h"
+#include "RenderSVGResourceClipper.h"
+#include "RenderSVGResourceFilter.h"
+#include "RenderSVGResourceGradient.h"
+#include "RenderSVGResourceLinearGradient.h"
+#include "RenderSVGResourceMarker.h"
+#include "RenderSVGResourceMasker.h"
+#include "RenderSVGResourcePattern.h"
+#include "RenderSVGResourceRadialGradient.h"
+#include "RenderSVGResourceSolidColor.h"
+#include "RenderSVGRoot.h"
+#include "RenderSVGText.h"
+#include "RenderTreeAsText.h"
+#include "SVGCharacterLayoutInfo.h"
+#include "SVGInlineTextBox.h"
+#include "SVGLinearGradientElement.h"
+#include "SVGPatternElement.h"
+#include "SVGRadialGradientElement.h"
+#include "SVGRootInlineBox.h"
+#include "SVGStopElement.h"
+#include "SVGStyledElement.h"
+#include "SVGTextLayoutUtilities.h"
+
+#include <math.h>
+
+namespace WebCore {
+
+/** class + iomanip to help streaming list separators, i.e. ", " in string "a, b, c, d"
+ * Can be used in cases where you don't know which item in the list is the first
+ * one to be printed, but still want to avoid strings like ", b, c".
+ */
+class TextStreamSeparator {
+public:
+    TextStreamSeparator(const String& s)
+        : m_separator(s)
+        , m_needToSeparate(false)
+    {
+    }
+
+private:
+    friend TextStream& operator<<(TextStream&, TextStreamSeparator&);
+
+    String m_separator;
+    bool m_needToSeparate;
+};
+
+TextStream& operator<<(TextStream& ts, TextStreamSeparator& sep)
+{
+    if (sep.m_needToSeparate)
+        ts << sep.m_separator;
+    else
+        sep.m_needToSeparate = true;
+    return ts;
+}
+
+template<typename ValueType>
+static void writeNameValuePair(TextStream& ts, const char* name, ValueType value)
+{
+    ts << " [" << name << "=" << value << "]";
+}
+
+template<typename ValueType>
+static void writeNameAndQuotedValue(TextStream& ts, const char* name, ValueType value)
+{
+    ts << " [" << name << "=\"" << value << "\"]";
+}
+
+static void writeIfNotEmpty(TextStream& ts, const char* name, const String& value)
+{
+    if (!value.isEmpty())
+        writeNameValuePair(ts, name, value);
+}
+
+template<typename ValueType>
+static void writeIfNotDefault(TextStream& ts, const char* name, ValueType value, ValueType defaultValue)
+{
+    if (value != defaultValue)
+        writeNameValuePair(ts, name, value);
+}
+
+TextStream& operator<<(TextStream& ts, const IntPoint& p)
+{
+    return ts << "(" << p.x() << "," << p.y() << ")";
+}
+
+TextStream& operator<<(TextStream& ts, const IntRect& r)
+{
+    return ts << "at (" << r.x() << "," << r.y() << ") size " << r.width() << "x" << r.height();
+}
+
+static bool hasFractions(double val)
+{
+    double epsilon = 0.0001;
+    int ival = static_cast<int>(val);
+    double dval = static_cast<double>(ival);
+    return fabs(val - dval) > epsilon;
+}
+
+TextStream& operator<<(TextStream& ts, const FloatRect &r)
+{
+    ts << "at ("; 
+    if (hasFractions(r.x())) 
+        ts << r.x();
+    else 
+        ts << int(r.x());
+    ts << ",";
+    if (hasFractions(r.y())) 
+        ts << r.y();
+    else 
+        ts << int(r.y());
+    ts << ") size ";
+    if (hasFractions(r.width())) 
+        ts << r.width(); 
+    else 
+        ts << int(r.width()); 
+    ts << "x";
+    if (hasFractions(r.height())) 
+        ts << r.height();
+    else 
+        ts << int(r.height());
+    return ts;
+}
+
+TextStream& operator<<(TextStream& ts, const FloatPoint& p)
+{
+    ts << "(";    
+    if (hasFractions(p.x()))
+        ts << p.x();
+    else 
+        ts << int(p.x());    
+    ts << ",";
+    if (hasFractions(p.y())) 
+        ts << p.y();
+    else 
+        ts << int(p.y());    
+    return ts << ")";
+}
+
+TextStream& operator<<(TextStream& ts, const FloatSize& s)
+{
+    ts << "width=";
+    if (hasFractions(s.width()))
+        ts << s.width();
+    else
+        ts << int(s.width());
+    ts << " height=";
+    if (hasFractions(s.height())) 
+        ts << s.height();
+    else
+        ts << int(s.height());
+    return ts;
+}
+
+TextStream& operator<<(TextStream& ts, const AffineTransform& transform)
+{
+    if (transform.isIdentity())
+        ts << "identity";
+    else
+        ts << "{m=(("
+           << transform.a() << "," << transform.b()
+           << ")("
+           << transform.c() << "," << transform.d()
+           << ")) t=("
+           << transform.e() << "," << transform.f()
+           << ")}";
+
+    return ts;
+}
+
+static TextStream& operator<<(TextStream& ts, const WindRule rule)
+{
+    switch (rule) {
+    case RULE_NONZERO:
+        ts << "NON-ZERO";
+        break;
+    case RULE_EVENODD:
+        ts << "EVEN-ODD";
+        break;
+    }
+
+    return ts;
+}
+
+static TextStream& operator<<(TextStream& ts, const SVGUnitTypes::SVGUnitType& unitType)
+{
+    switch (unitType) {
+    case SVGUnitTypes::SVG_UNIT_TYPE_UNKNOWN:
+        ts << "unknown";
+        break;
+    case SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE:
+        ts << "userSpaceOnUse";
+        break;
+    case SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX:
+        ts << "objectBoundingBox";
+        break;
+    }
+
+    return ts;
+}
+
+static TextStream& operator<<(TextStream& ts, const SVGMarkerElement::SVGMarkerUnitsType& markerUnit)
+{
+    switch (markerUnit) {
+    case SVGMarkerElement::SVG_MARKERUNITS_UNKNOWN:
+        ts << "unknown";
+        break;
+    case SVGMarkerElement::SVG_MARKERUNITS_USERSPACEONUSE:
+        ts << "userSpaceOnUse";
+        break;
+    case SVGMarkerElement::SVG_MARKERUNITS_STROKEWIDTH:
+        ts << "strokeWidth";
+        break;
+    }
+
+    return ts;
+}
+
+TextStream& operator<<(TextStream& ts, const Color& c)
+{
+    return ts << c.name();
+}
+
+// FIXME: Maybe this should be in KCanvasRenderingStyle.cpp
+static TextStream& operator<<(TextStream& ts, const DashArray& a)
+{
+    ts << "{";
+    DashArray::const_iterator end = a.end();
+    for (DashArray::const_iterator it = a.begin(); it != end; ++it) {
+        if (it != a.begin())
+            ts << ", ";
+        ts << *it;
+    }
+    ts << "}";
+    return ts;
+}
+
+// FIXME: Maybe this should be in GraphicsTypes.cpp
+static TextStream& operator<<(TextStream& ts, LineCap style)
+{
+    switch (style) {
+        case ButtCap:
+            ts << "BUTT";
+            break;
+        case RoundCap:
+            ts << "ROUND";
+            break;
+        case SquareCap:
+            ts << "SQUARE";
+            break;
+    }
+    return ts;
+}
+
+// FIXME: Maybe this should be in GraphicsTypes.cpp
+static TextStream& operator<<(TextStream& ts, LineJoin style)
+{
+    switch (style) {
+        case MiterJoin:
+            ts << "MITER";
+            break;
+        case RoundJoin:
+            ts << "ROUND";
+            break;
+        case BevelJoin:
+            ts << "BEVEL";
+            break;
+    }
+    return ts;
+}
+
+// FIXME: Maybe this should be in Gradient.cpp
+static TextStream& operator<<(TextStream& ts, GradientSpreadMethod mode)
+{
+    switch (mode) {
+    case SpreadMethodPad:
+        ts << "PAD";
+        break;
+    case SpreadMethodRepeat:
+        ts << "REPEAT";
+        break;
+    case SpreadMethodReflect:
+        ts << "REFLECT";
+        break;
+    }
+
+    return ts;
+}
+
+static void writeSVGPaintingResource(TextStream& ts, RenderSVGResource* resource)
+{
+    if (resource->resourceType() == SolidColorResourceType) {
+        ts << "[type=SOLID] [color=" << static_cast<RenderSVGResourceSolidColor*>(resource)->color() << "]";
+        return;
+    }
+
+    // All other resources derive from RenderSVGResourceContainer
+    RenderSVGResourceContainer* container = static_cast<RenderSVGResourceContainer*>(resource);
+    Node* node = container->node();
+    ASSERT(node);
+    ASSERT(node->isSVGElement());
+
+    if (resource->resourceType() == PatternResourceType)
+        ts << "[type=PATTERN]";
+    else if (resource->resourceType() == LinearGradientResourceType)
+        ts << "[type=LINEAR-GRADIENT]";
+    else if (resource->resourceType() == RadialGradientResourceType)
+        ts << "[type=RADIAL-GRADIENT]";
+
+    ts << " [id=\"" << static_cast<SVGElement*>(node)->getIdAttribute() << "\"]";
+}
+
+static void writeStyle(TextStream& ts, const RenderObject& object)
+{
+    const RenderStyle* style = object.style();
+    const SVGRenderStyle* svgStyle = style->svgStyle();
+
+    if (!object.localTransform().isIdentity())
+        writeNameValuePair(ts, "transform", object.localTransform());
+    writeIfNotDefault(ts, "image rendering", svgStyle->imageRendering(), SVGRenderStyle::initialImageRendering());
+    writeIfNotDefault(ts, "opacity", style->opacity(), RenderStyle::initialOpacity());
+    if (object.isRenderPath()) {
+        const RenderPath& path = static_cast<const RenderPath&>(object);
+
+        if (RenderSVGResource* strokePaintingResource = RenderSVGResource::strokePaintingResource(&path, path.style())) {
+            TextStreamSeparator s(" ");
+            ts << " [stroke={" << s;
+            writeSVGPaintingResource(ts, strokePaintingResource);
+
+            double dashOffset = SVGRenderStyle::cssPrimitiveToLength(&path, svgStyle->strokeDashOffset(), 0.0f);
+            const DashArray& dashArray = SVGRenderSupport::dashArrayFromRenderingStyle(style, object.document()->documentElement()->renderStyle());
+            double strokeWidth = SVGRenderStyle::cssPrimitiveToLength(&path, svgStyle->strokeWidth(), 1.0f);
+
+            writeIfNotDefault(ts, "opacity", svgStyle->strokeOpacity(), 1.0f);
+            writeIfNotDefault(ts, "stroke width", strokeWidth, 1.0);
+            writeIfNotDefault(ts, "miter limit", svgStyle->strokeMiterLimit(), 4.0f);
+            writeIfNotDefault(ts, "line cap", svgStyle->capStyle(), ButtCap);
+            writeIfNotDefault(ts, "line join", svgStyle->joinStyle(), MiterJoin);
+            writeIfNotDefault(ts, "dash offset", dashOffset, 0.0);
+            if (!dashArray.isEmpty())
+                writeNameValuePair(ts, "dash array", dashArray);
+
+            ts << "}]";
+        }
+
+        if (RenderSVGResource* fillPaintingResource = RenderSVGResource::fillPaintingResource(&path, path.style())) {
+            TextStreamSeparator s(" ");
+            ts << " [fill={" << s;
+            writeSVGPaintingResource(ts, fillPaintingResource);
+
+            writeIfNotDefault(ts, "opacity", svgStyle->fillOpacity(), 1.0f);
+            writeIfNotDefault(ts, "fill rule", svgStyle->fillRule(), RULE_NONZERO);
+            ts << "}]";
+        }
+        writeIfNotDefault(ts, "clip rule", svgStyle->clipRule(), RULE_NONZERO);
+    }
+
+    writeIfNotEmpty(ts, "start marker", svgStyle->markerStartResource());
+    writeIfNotEmpty(ts, "middle marker", svgStyle->markerMidResource());
+    writeIfNotEmpty(ts, "end marker", svgStyle->markerEndResource());
+}
+
+static TextStream& writePositionAndStyle(TextStream& ts, const RenderObject& object)
+{
+    ts << " " << const_cast<RenderObject&>(object).absoluteClippedOverflowRect();
+    writeStyle(ts, object);
+    return ts;
+}
+
+static TextStream& operator<<(TextStream& ts, const RenderPath& path)
+{
+    writePositionAndStyle(ts, path);
+    writeNameAndQuotedValue(ts, "data", path.path().debugString());
+    return ts;
+}
+
+static TextStream& operator<<(TextStream& ts, const RenderSVGRoot& root)
+{
+    return writePositionAndStyle(ts, root);
+}
+
+static void writeRenderSVGTextBox(TextStream& ts, const RenderBlock& text)
+{
+    SVGRootInlineBox* box = static_cast<SVGRootInlineBox*>(text.firstRootBox());
+
+    if (!box)
+        return;
+
+    Vector<SVGTextChunk>& chunks = const_cast<Vector<SVGTextChunk>& >(box->svgTextChunks());
+    ts << " at (" << text.x() << "," << text.y() << ") size " << box->width() << "x" << box->height() << " contains " << chunks.size() << " chunk(s)";
+
+    if (text.parent() && (text.parent()->style()->visitedDependentColor(CSSPropertyColor) != text.style()->visitedDependentColor(CSSPropertyColor)))
+        writeNameValuePair(ts, "color", text.style()->visitedDependentColor(CSSPropertyColor).name());
+}
+
+static inline bool containsInlineTextBox(SVGTextChunk& chunk, SVGInlineTextBox* box)
+{
+    Vector<SVGInlineBoxCharacterRange>::iterator boxIt = chunk.boxes.begin();
+    Vector<SVGInlineBoxCharacterRange>::iterator boxEnd = chunk.boxes.end();
+
+    bool found = false;
+    for (; boxIt != boxEnd; ++boxIt) {
+        SVGInlineBoxCharacterRange& range = *boxIt;
+
+        if (box == static_cast<SVGInlineTextBox*>(range.box)) {
+            found = true;
+            break;
+        }
+    }
+
+    return found;
+}
+
+static inline void writeSVGInlineTextBox(TextStream& ts, SVGInlineTextBox* textBox, int indent)
+{
+    SVGRootInlineBox* rootBox = textBox->svgRootInlineBox();
+    if (!rootBox)
+        return;
+
+    Vector<SVGTextChunk>& chunks = const_cast<Vector<SVGTextChunk>& >(rootBox->svgTextChunks());
+
+    Vector<SVGTextChunk>::iterator it = chunks.begin();
+    Vector<SVGTextChunk>::iterator end = chunks.end();
+
+    // Write text chunks
+    unsigned int i = 1;
+    for (; it != end; ++it) {
+        SVGTextChunk& cur = *it;
+
+        // Write inline box character ranges
+        Vector<SVGInlineBoxCharacterRange>::iterator boxIt = cur.boxes.begin();
+        Vector<SVGInlineBoxCharacterRange>::iterator boxEnd = cur.boxes.end();
+
+        if (!containsInlineTextBox(cur, textBox)) {
+            i++;
+            continue;
+        }
+
+        writeIndent(ts, indent + 1);
+
+        unsigned int j = 1;
+        ts << "chunk " << i << " ";
+
+        if (cur.anchor == TA_MIDDLE) {
+            ts << "(middle anchor";
+            if (cur.isVerticalText)
+                ts << ", vertical";
+            ts << ") ";
+        } else if (cur.anchor == TA_END) {
+            ts << "(end anchor";
+            if (cur.isVerticalText)
+                ts << ", vertical";
+            ts << ") ";
+        } else if (cur.isVerticalText)
+            ts << "(vertical) ";
+
+        unsigned int totalOffset = 0;
+
+        for (; boxIt != boxEnd; ++boxIt) {
+            SVGInlineBoxCharacterRange& range = *boxIt;
+
+            unsigned int offset = range.endOffset - range.startOffset;
+            ASSERT(cur.start + totalOffset <= cur.end);
+    
+            totalOffset += offset;
+      
+            if (textBox != static_cast<SVGInlineTextBox*>(range.box)) {
+                j++;
+                continue;
+            }
+  
+            FloatPoint topLeft = topLeftPositionOfCharacterRange(cur.start + totalOffset - offset, cur.start + totalOffset);
+
+            ts << "text run " << j << " at (" << topLeft.x() << "," << topLeft.y() << ") ";
+            ts << "startOffset " << range.startOffset << " endOffset " << range.endOffset;
+
+            if (cur.isVerticalText)
+                ts << " height " << cummulatedHeightOfInlineBoxCharacterRange(range);
+            else
+                ts << " width " << cummulatedWidthOfInlineBoxCharacterRange(range);
+
+            if (textBox->direction() == RTL || textBox->m_dirOverride) {
+                ts << (textBox->direction() == RTL ? " RTL" : " LTR");
+
+                if (textBox->m_dirOverride)
+                    ts << " override";
+            }
+
+            ts << ": " << quoteAndEscapeNonPrintables(String(textBox->textRenderer()->text()).substring(textBox->start() + range.startOffset, offset)) << "\n";
+
+            j++;
+        }
+
+        i++;
+    }
+}
+
+static inline void writeSVGInlineTextBoxes(TextStream& ts, const RenderText& text, int indent)
+{
+    for (InlineTextBox* box = text.firstTextBox(); box; box = box->nextTextBox())
+        writeSVGInlineTextBox(ts, static_cast<SVGInlineTextBox*>(box), indent);
+}
+
+static void writeStandardPrefix(TextStream& ts, const RenderObject& object, int indent)
+{
+    writeIndent(ts, indent);
+    ts << object.renderName();
+
+    if (object.node())
+        ts << " {" << object.node()->nodeName() << "}";
+}
+
+static void writeChildren(TextStream& ts, const RenderObject& object, int indent)
+{
+    for (RenderObject* child = object.firstChild(); child; child = child->nextSibling())
+        write(ts, *child, indent + 1);
+}
+
+static inline String boundingBoxModeString(bool boundingBoxMode)
+{
+    return boundingBoxMode ? "objectBoundingBox" : "userSpaceOnUse";
+}
+
+static inline void writeCommonGradientProperties(TextStream& ts, GradientSpreadMethod spreadMethod, const AffineTransform& gradientTransform, bool boundingBoxMode)
+{
+    writeNameValuePair(ts, "gradientUnits", boundingBoxModeString(boundingBoxMode));
+
+    if (spreadMethod != SpreadMethodPad)
+        ts << " [spreadMethod=" << spreadMethod << "]";
+
+    if (!gradientTransform.isIdentity())
+        ts << " [gradientTransform=" << gradientTransform << "]";
+}
+
+void writeSVGResourceContainer(TextStream& ts, const RenderObject& object, int indent)
+{
+    writeStandardPrefix(ts, object, indent);
+
+    Element* element = static_cast<Element*>(object.node());
+    const AtomicString& id = element->getIdAttribute();
+    writeNameAndQuotedValue(ts, "id", id);    
+
+    RenderSVGResourceContainer* resource = const_cast<RenderObject&>(object).toRenderSVGResourceContainer();
+    ASSERT(resource);
+
+    if (resource->resourceType() == MaskerResourceType) {
+        RenderSVGResourceMasker* masker = static_cast<RenderSVGResourceMasker*>(resource);
+        writeNameValuePair(ts, "maskUnits", masker->maskUnits());
+        writeNameValuePair(ts, "maskContentUnits", masker->maskContentUnits());
+        ts << "\n";
+#if ENABLE(FILTERS)
+    } else if (resource->resourceType() == FilterResourceType) {
+        RenderSVGResourceFilter* filter = static_cast<RenderSVGResourceFilter*>(resource);
+        writeNameValuePair(ts, "filterUnits", filter->filterUnits());
+        writeNameValuePair(ts, "primitiveUnits", filter->primitiveUnits());
+        ts << "\n";
+        if (RefPtr<SVGFilterBuilder> builder = filter->buildPrimitives()) {
+            if (FilterEffect* lastEffect = builder->lastEffect())
+                lastEffect->externalRepresentation(ts, indent + 1);
+        }      
+#endif
+    } else if (resource->resourceType() == ClipperResourceType) {
+        RenderSVGResourceClipper* clipper = static_cast<RenderSVGResourceClipper*>(resource);
+        writeNameValuePair(ts, "clipPathUnits", clipper->clipPathUnits());
+        ts << "\n";
+    } else if (resource->resourceType() == MarkerResourceType) {
+        RenderSVGResourceMarker* marker = static_cast<RenderSVGResourceMarker*>(resource);
+        writeNameValuePair(ts, "markerUnits", marker->markerUnits());
+        ts << " [ref at " << marker->referencePoint() << "]";
+        ts << " [angle=";
+        if (marker->angle() == -1)
+            ts << "auto" << "]\n";
+        else
+            ts << marker->angle() << "]\n";
+    } else if (resource->resourceType() == PatternResourceType) {
+        RenderSVGResourcePattern* pattern = static_cast<RenderSVGResourcePattern*>(resource);
+
+        // Dump final results that are used for rendering. No use in asking SVGPatternElement for its patternUnits(), as it may
+        // link to other patterns using xlink:href, we need to build the full inheritance chain, aka. collectPatternProperties()
+        PatternAttributes attributes = static_cast<SVGPatternElement*>(pattern->node())->collectPatternProperties();
+        writeNameValuePair(ts, "patternUnits", boundingBoxModeString(attributes.boundingBoxMode()));
+        writeNameValuePair(ts, "patternContentUnits", boundingBoxModeString(attributes.boundingBoxModeContent()));
+
+        AffineTransform transform = attributes.patternTransform();
+        if (!transform.isIdentity())
+            ts << " [patternTransform=" << transform << "]";
+        ts << "\n";
+    } else if (resource->resourceType() == LinearGradientResourceType) {
+        RenderSVGResourceLinearGradient* gradient = static_cast<RenderSVGResourceLinearGradient*>(resource);
+
+        // Dump final results that are used for rendering. No use in asking SVGGradientElement for its gradientUnits(), as it may
+        // link to other gradients using xlink:href, we need to build the full inheritance chain, aka. collectGradientProperties()
+        SVGLinearGradientElement* linearGradientElement = static_cast<SVGLinearGradientElement*>(gradient->node());
+
+        LinearGradientAttributes attributes = linearGradientElement->collectGradientProperties();
+        writeCommonGradientProperties(ts, attributes.spreadMethod(), attributes.gradientTransform(), attributes.boundingBoxMode());
+
+        FloatPoint startPoint;
+        FloatPoint endPoint;
+        linearGradientElement->calculateStartEndPoints(attributes, startPoint, endPoint);
+
+        ts << " [start=" << startPoint << "] [end=" << endPoint << "]\n";
+    }  else if (resource->resourceType() == RadialGradientResourceType) {
+        RenderSVGResourceRadialGradient* gradient = static_cast<RenderSVGResourceRadialGradient*>(resource);
+
+        // Dump final results that are used for rendering. No use in asking SVGGradientElement for its gradientUnits(), as it may
+        // link to other gradients using xlink:href, we need to build the full inheritance chain, aka. collectGradientProperties()
+        SVGRadialGradientElement* radialGradientElement = static_cast<SVGRadialGradientElement*>(gradient->node());
+
+        RadialGradientAttributes attributes = radialGradientElement->collectGradientProperties();
+        writeCommonGradientProperties(ts, attributes.spreadMethod(), attributes.gradientTransform(), attributes.boundingBoxMode());
+
+        FloatPoint focalPoint;
+        FloatPoint centerPoint;
+        float radius;
+        radialGradientElement->calculateFocalCenterPointsAndRadius(attributes, focalPoint, centerPoint, radius);
+
+        ts << " [center=" << centerPoint << "] [focal=" << focalPoint << "] [radius=" << radius << "]\n";
+    } else
+        ts << "\n";
+    writeChildren(ts, object, indent);
+}
+
+void writeSVGContainer(TextStream& ts, const RenderObject& container, int indent)
+{
+    writeStandardPrefix(ts, container, indent);
+    writePositionAndStyle(ts, container);
+    ts << "\n";
+    writeResources(ts, container, indent);
+    writeChildren(ts, container, indent);
+}
+
+void write(TextStream& ts, const RenderSVGRoot& root, int indent)
+{
+    writeStandardPrefix(ts, root, indent);
+    ts << root << "\n";
+    writeChildren(ts, root, indent);
+}
+
+void writeSVGText(TextStream& ts, const RenderBlock& text, int indent)
+{
+    writeStandardPrefix(ts, text, indent);
+    writeRenderSVGTextBox(ts, text);
+    ts << "\n";
+    writeResources(ts, text, indent);
+    writeChildren(ts, text, indent);
+}
+
+void writeSVGInlineText(TextStream& ts, const RenderText& text, int indent)
+{
+    writeStandardPrefix(ts, text, indent);
+
+    // Why not just linesBoundingBox()?
+    ts << " " << FloatRect(text.firstRunOrigin(), text.linesBoundingBox().size()) << "\n";
+    writeResources(ts, text, indent);
+    writeSVGInlineTextBoxes(ts, text, indent);
+}
+
+void writeSVGImage(TextStream& ts, const RenderImage& image, int indent)
+{
+    writeStandardPrefix(ts, image, indent);
+    writePositionAndStyle(ts, image);
+    ts << "\n";
+    writeResources(ts, image, indent);
+}
+
+void write(TextStream& ts, const RenderPath& path, int indent)
+{
+    writeStandardPrefix(ts, path, indent);
+    ts << path << "\n";
+    writeResources(ts, path, indent);
+}
+
+void writeSVGGradientStop(TextStream& ts, const RenderSVGGradientStop& stop, int indent)
+{
+    writeStandardPrefix(ts, stop, indent);
+
+    SVGStopElement* stopElement = static_cast<SVGStopElement*>(stop.node());
+    ASSERT(stopElement);
+
+    RenderStyle* style = stop.style();
+    if (!style)
+        return;
+
+    ts << " [offset=" << stopElement->offset() << "] [color=" << stopElement->stopColorIncludingOpacity() << "]\n";
+}
+
+void writeResources(TextStream& ts, const RenderObject& object, int indent)
+{
+    const RenderStyle* style = object.style();
+    const SVGRenderStyle* svgStyle = style->svgStyle();
+
+    RenderObject& renderer = const_cast<RenderObject&>(object);
+    if (!svgStyle->maskerResource().isEmpty()) {
+        if (RenderSVGResourceMasker* masker = getRenderSVGResourceById<RenderSVGResourceMasker>(object.document(), svgStyle->maskerResource())) {
+            writeIndent(ts, indent);
+            ts << " ";
+            writeNameAndQuotedValue(ts, "masker", svgStyle->maskerResource());
+            ts << " ";
+            writeStandardPrefix(ts, *masker, 0);
+            ts << " " << masker->resourceBoundingBox(&renderer) << "\n";
+        }
+    }
+    if (!svgStyle->clipperResource().isEmpty()) {
+        if (RenderSVGResourceClipper* clipper = getRenderSVGResourceById<RenderSVGResourceClipper>(object.document(), svgStyle->clipperResource())) {
+            writeIndent(ts, indent);
+            ts << " ";
+            writeNameAndQuotedValue(ts, "clipPath", svgStyle->clipperResource());
+            ts << " ";
+            writeStandardPrefix(ts, *clipper, 0);
+            ts << " " << clipper->resourceBoundingBox(&renderer) << "\n";
+        }
+    }
+#if ENABLE(FILTERS)
+    if (!svgStyle->filterResource().isEmpty()) {
+        if (RenderSVGResourceFilter* filter = getRenderSVGResourceById<RenderSVGResourceFilter>(object.document(), svgStyle->filterResource())) {
+            writeIndent(ts, indent);
+            ts << " ";
+            writeNameAndQuotedValue(ts, "filter", svgStyle->filterResource());
+            ts << " ";
+            writeStandardPrefix(ts, *filter, 0);
+            ts << " " << filter->resourceBoundingBox(&renderer) << "\n";
+        }
+    }
+#endif
+}
+
+} // namespace WebCore
+
+#endif // ENABLE(SVG)