| /* |
| Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org> |
| 2004, 2005 Rob Buis <buis@kde.org> |
| 2005 Eric Seidel <eric@webkit.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 |
| aint 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(SVG_FILTERS) |
| #include "SVGResourceFilter.h" |
| |
| #include "SVGRenderTreeAsText.h" |
| #include "SVGFilterEffect.h" |
| #include "TextStream.h" |
| |
| namespace WebCore { |
| |
| SVGResourceFilter::SVGResourceFilter() |
| : m_platformData(createPlatformData()) |
| , m_filterBBoxMode(false) |
| , m_effectBBoxMode(false) |
| , m_xBBoxMode(false) |
| , m_yBBoxMode(false) |
| { |
| } |
| |
| void SVGResourceFilter::clearEffects() |
| { |
| m_effects.clear(); |
| } |
| |
| void SVGResourceFilter::addFilterEffect(SVGFilterEffect* effect) |
| { |
| ASSERT(effect); |
| |
| if (effect) { |
| ASSERT(effect->filter() == this); |
| m_effects.append(effect); |
| } |
| } |
| |
| FloatRect SVGResourceFilter::filterBBoxForItemBBox(const FloatRect& itemBBox) const |
| { |
| FloatRect filterBBox = filterRect(); |
| |
| float xOffset = 0.0f; |
| float yOffset = 0.0f; |
| |
| if (!effectBoundingBoxMode()) { |
| xOffset = itemBBox.x(); |
| yOffset = itemBBox.y(); |
| } |
| |
| if (filterBoundingBoxMode()) { |
| filterBBox = FloatRect(xOffset + filterBBox.x() * itemBBox.width(), |
| yOffset + filterBBox.y() * itemBBox.height(), |
| filterBBox.width() * itemBBox.width(), |
| filterBBox.height() * itemBBox.height()); |
| } else { |
| if (xBoundingBoxMode()) |
| filterBBox.setX(xOffset + filterBBox.x()); |
| |
| if (yBoundingBoxMode()) |
| filterBBox.setY(yOffset + filterBBox.y()); |
| } |
| |
| return filterBBox; |
| } |
| |
| TextStream& SVGResourceFilter::externalRepresentation(TextStream& ts) const |
| { |
| ts << "[type=FILTER] "; |
| |
| FloatRect bbox = filterRect(); |
| static FloatRect defaultFilterRect(0, 0, 1, 1); |
| |
| if (!filterBoundingBoxMode() || bbox != defaultFilterRect) { |
| ts << " [bounding box="; |
| if (filterBoundingBoxMode()) { |
| bbox.scale(100.f); |
| ts << "at (" << bbox.x() << "%," << bbox.y() << "%) size " << bbox.width() << "%x" << bbox.height() << "%"; |
| } else |
| ts << filterRect(); |
| ts << "]"; |
| } |
| |
| if (!filterBoundingBoxMode()) // default is true |
| ts << " [bounding box mode=" << filterBoundingBoxMode() << "]"; |
| if (effectBoundingBoxMode()) // default is false |
| ts << " [effect bounding box mode=" << effectBoundingBoxMode() << "]"; |
| if (m_effects.size() > 0) |
| ts << " [effects=" << m_effects << "]"; |
| |
| return ts; |
| } |
| |
| SVGResourceFilter* getFilterById(Document* document, const AtomicString& id) |
| { |
| SVGResource* resource = getResourceById(document, id); |
| if (resource && resource->isFilter()) |
| return static_cast<SVGResourceFilter*>(resource); |
| |
| return 0; |
| } |
| |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(SVG) |