| /* |
| Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org> |
| 2004, 2005, 2006 Rob Buis <buis@kde.org> |
| |
| 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 "SVGFEColorMatrixElement.h" |
| |
| #include "MappedAttribute.h" |
| #include "SVGNames.h" |
| #include "SVGNumberList.h" |
| #include "SVGResourceFilter.h" |
| |
| namespace WebCore { |
| |
| SVGFEColorMatrixElement::SVGFEColorMatrixElement(const QualifiedName& tagName, Document* doc) |
| : SVGFilterPrimitiveStandardAttributes(tagName, doc) |
| , m_type(FECOLORMATRIX_TYPE_UNKNOWN) |
| , m_values(SVGNumberList::create(SVGNames::valuesAttr)) |
| { |
| } |
| |
| SVGFEColorMatrixElement::~SVGFEColorMatrixElement() |
| { |
| } |
| |
| void SVGFEColorMatrixElement::parseMappedAttribute(MappedAttribute* attr) |
| { |
| const String& value = attr->value(); |
| if (attr->name() == SVGNames::typeAttr) { |
| if (value == "matrix") |
| setTypeBaseValue(FECOLORMATRIX_TYPE_MATRIX); |
| else if (value == "saturate") |
| setTypeBaseValue(FECOLORMATRIX_TYPE_SATURATE); |
| else if (value == "hueRotate") |
| setTypeBaseValue(FECOLORMATRIX_TYPE_HUEROTATE); |
| else if (value == "luminanceToAlpha") |
| setTypeBaseValue(FECOLORMATRIX_TYPE_LUMINANCETOALPHA); |
| } |
| else if (attr->name() == SVGNames::inAttr) |
| setIn1BaseValue(value); |
| else if (attr->name() == SVGNames::valuesAttr) |
| valuesBaseValue()->parse(value); |
| else |
| SVGFilterPrimitiveStandardAttributes::parseMappedAttribute(attr); |
| } |
| |
| void SVGFEColorMatrixElement::synchronizeProperty(const QualifiedName& attrName) |
| { |
| SVGFilterPrimitiveStandardAttributes::synchronizeProperty(attrName); |
| |
| if (attrName == anyQName()) { |
| synchronizeType(); |
| synchronizeIn1(); |
| synchronizeValues(); |
| return; |
| } |
| |
| if (attrName == SVGNames::typeAttr) |
| synchronizeType(); |
| else if (attrName == SVGNames::inAttr) |
| synchronizeIn1(); |
| else if (attrName == SVGNames::valuesAttr) |
| synchronizeValues(); |
| } |
| |
| bool SVGFEColorMatrixElement::build(SVGResourceFilter* filterResource) |
| { |
| FilterEffect* input1 = filterResource->builder()->getEffectById(in1()); |
| |
| if (!input1) |
| return false; |
| |
| Vector<float> filterValues; |
| SVGNumberList* numbers = values(); |
| const ColorMatrixType filterType(static_cast<const ColorMatrixType>(type())); |
| |
| // Use defaults if values is empty (SVG 1.1 15.10). |
| if (!hasAttribute(SVGNames::valuesAttr)) { |
| switch (filterType) { |
| case FECOLORMATRIX_TYPE_MATRIX: |
| for (size_t i = 0; i < 20; i++) |
| filterValues.append((i % 6) ? 0.0f : 1.0f); |
| break; |
| case FECOLORMATRIX_TYPE_HUEROTATE: |
| filterValues.append(0.0f); |
| break; |
| case FECOLORMATRIX_TYPE_SATURATE: |
| filterValues.append(1.0f); |
| break; |
| default: |
| break; |
| } |
| } else { |
| size_t size = numbers->numberOfItems(); |
| for (size_t i = 0; i < size; i++) { |
| ExceptionCode ec = 0; |
| filterValues.append(numbers->getItem(i, ec)); |
| } |
| size = filterValues.size(); |
| |
| if ((filterType == FECOLORMATRIX_TYPE_MATRIX && size != 20) |
| || (filterType == FECOLORMATRIX_TYPE_HUEROTATE && size != 1) |
| || (filterType == FECOLORMATRIX_TYPE_SATURATE && (size != 1 |
| || filterValues[0] < 0.0f || filterValues[0] > 1.0f))) |
| return false; |
| } |
| |
| RefPtr<FilterEffect> effect = FEColorMatrix::create(input1, filterType, filterValues); |
| filterResource->addFilterEffect(this, effect.release()); |
| |
| return true; |
| } |
| |
| } //namespace WebCore |
| |
| #endif // ENABLE(SVG) |