--- /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)