| /* |
| Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org> |
| Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org> |
| Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com> |
| |
| This file is part of the KDE project |
| |
| 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) && ENABLE(FILTERS) |
| #include "SVGFilterElement.h" |
| |
| #include "Attr.h" |
| #include "SVGFilterBuilder.h" |
| #include "MappedAttribute.h" |
| #include "PlatformString.h" |
| #include "SVGFilterPrimitiveStandardAttributes.h" |
| #include "SVGLength.h" |
| #include "SVGNames.h" |
| #include "SVGResourceFilter.h" |
| #include "SVGUnitTypes.h" |
| |
| namespace WebCore { |
| |
| char SVGFilterResXIdentifier[] = "SVGFilterResX"; |
| char SVGFilterResYIdentifier[] = "SVGFilterResY"; |
| |
| SVGFilterElement::SVGFilterElement(const QualifiedName& tagName, Document* doc) |
| : SVGStyledElement(tagName, doc) |
| , SVGURIReference() |
| , SVGLangSpace() |
| , SVGExternalResourcesRequired() |
| , m_filterUnits(this, SVGNames::filterUnitsAttr, SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX) |
| , m_primitiveUnits(this, SVGNames::primitiveUnitsAttr, SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE) |
| , m_x(this, SVGNames::xAttr, LengthModeWidth, "-10%") |
| , m_y(this, SVGNames::yAttr, LengthModeHeight, "-10%") |
| , m_width(this, SVGNames::widthAttr, LengthModeWidth, "120%") |
| , m_height(this, SVGNames::heightAttr, LengthModeHeight, "120%") |
| , m_filterResX(this, SVGNames::filterResAttr) |
| , m_filterResY(this, SVGNames::filterResAttr) |
| { |
| // Spec: If the x/y attribute is not specified, the effect is as if a value of "-10%" were specified. |
| // Spec: If the width/height attribute is not specified, the effect is as if a value of "120%" were specified. |
| } |
| |
| SVGFilterElement::~SVGFilterElement() |
| { |
| } |
| |
| void SVGFilterElement::setFilterRes(unsigned long, unsigned long) const |
| { |
| } |
| |
| void SVGFilterElement::parseMappedAttribute(MappedAttribute* attr) |
| { |
| const String& value = attr->value(); |
| if (attr->name() == SVGNames::filterUnitsAttr) { |
| if (value == "userSpaceOnUse") |
| setFilterUnitsBaseValue(SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE); |
| else if (value == "objectBoundingBox") |
| setFilterUnitsBaseValue(SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX); |
| } else if (attr->name() == SVGNames::primitiveUnitsAttr) { |
| if (value == "userSpaceOnUse") |
| setPrimitiveUnitsBaseValue(SVGUnitTypes::SVG_UNIT_TYPE_USERSPACEONUSE); |
| else if (value == "objectBoundingBox") |
| setPrimitiveUnitsBaseValue(SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX); |
| } else if (attr->name() == SVGNames::xAttr) |
| setXBaseValue(SVGLength(LengthModeWidth, value)); |
| else if (attr->name() == SVGNames::yAttr) |
| setYBaseValue(SVGLength(LengthModeHeight, value)); |
| else if (attr->name() == SVGNames::widthAttr) |
| setWidthBaseValue(SVGLength(LengthModeWidth, value)); |
| else if (attr->name() == SVGNames::heightAttr) |
| setHeightBaseValue(SVGLength(LengthModeHeight, value)); |
| else { |
| if (SVGURIReference::parseMappedAttribute(attr)) |
| return; |
| if (SVGLangSpace::parseMappedAttribute(attr)) |
| return; |
| if (SVGExternalResourcesRequired::parseMappedAttribute(attr)) |
| return; |
| |
| SVGStyledElement::parseMappedAttribute(attr); |
| } |
| } |
| |
| SVGResource* SVGFilterElement::canvasResource() |
| { |
| if (!attached()) |
| return 0; |
| |
| if (!m_filter) |
| m_filter = new SVGResourceFilter(); |
| |
| bool filterBBoxMode = filterUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX; |
| m_filter->setFilterBoundingBoxMode(filterBBoxMode); |
| |
| float _x, _y, _width, _height; |
| |
| if (filterBBoxMode) { |
| _x = x().valueAsPercentage(); |
| _y = y().valueAsPercentage(); |
| _width = width().valueAsPercentage(); |
| _height = height().valueAsPercentage(); |
| } else { |
| m_filter->setXBoundingBoxMode(x().unitType() == LengthTypePercentage); |
| m_filter->setYBoundingBoxMode(y().unitType() == LengthTypePercentage); |
| |
| _x = x().value(this); |
| _y = y().value(this); |
| _width = width().value(this); |
| _height = height().value(this); |
| } |
| |
| m_filter->setFilterRect(FloatRect(_x, _y, _width, _height)); |
| |
| bool primitiveBBoxMode = primitiveUnits() == SVGUnitTypes::SVG_UNIT_TYPE_OBJECTBOUNDINGBOX; |
| m_filter->setEffectBoundingBoxMode(primitiveBBoxMode); |
| |
| m_filter->builder()->clearEffects(); |
| for (Node* n = firstChild(); n != 0; n = n->nextSibling()) { |
| SVGElement* element = 0; |
| if (n->isSVGElement()) { |
| element = static_cast<SVGElement*>(n); |
| if (element->isFilterEffect()) { |
| SVGFilterPrimitiveStandardAttributes* effectElement = static_cast<SVGFilterPrimitiveStandardAttributes*>(element); |
| if (!effectElement->build(m_filter.get())) { |
| m_filter->builder()->clearEffects(); |
| break; |
| } |
| } |
| } |
| } |
| |
| return m_filter.get(); |
| } |
| |
| } |
| |
| #endif // ENABLE(SVG) |
| |
| // vim:ts=4:noet |