| /* |
| * Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org> |
| * Copyright (C) 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 { |
| |
| inline SVGPatternElement::SVGPatternElement(const QualifiedName& tagName, Document* document) |
| : SVGStyledElement(tagName, document) |
| , 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)) |
| { |
| } |
| |
| PassRefPtr<SVGPatternElement> SVGPatternElement::create(const QualifiedName& tagName, Document* document) |
| { |
| return adoptRef(new SVGPatternElement(tagName, document)); |
| } |
| |
| 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(); |
| } |
| |
| RenderObject* object = renderer(); |
| if (!object) |
| return; |
| |
| 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)) |
| object->setNeedsLayout(true); |
| } |
| |
| 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) |
| return; |
| |
| if (RenderObject* object = renderer()) |
| object->setNeedsLayout(true); |
| } |
| |
| 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)) { |
| current = 0; |
| break; |
| } |
| } else |
| current = 0; |
| } |
| |
| return attributes; |
| } |
| |
| bool SVGPatternElement::selfHasRelativeLengths() const |
| { |
| return x().isRelative() |
| || y().isRelative() |
| || width().isRelative() |
| || height().isRelative(); |
| } |
| |
| } |
| |
| #endif // ENABLE(SVG) |
