| /* |
| 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(FILTERS) |
| #include "SVGFEMerge.h" |
| |
| #include "Filter.h" |
| #include "GraphicsContext.h" |
| #include "SVGRenderTreeAsText.h" |
| |
| namespace WebCore { |
| |
| FEMerge::FEMerge(const Vector<RefPtr<FilterEffect> >& mergeInputs) |
| : FilterEffect() |
| , m_mergeInputs(mergeInputs) |
| { |
| } |
| |
| PassRefPtr<FEMerge> FEMerge::create(const Vector<RefPtr<FilterEffect> >& mergeInputs) |
| { |
| return adoptRef(new FEMerge(mergeInputs)); |
| } |
| |
| const Vector<RefPtr<FilterEffect> >& FEMerge::mergeInputs() const |
| { |
| return m_mergeInputs; |
| } |
| |
| void FEMerge::setMergeInputs(const Vector<RefPtr<FilterEffect> >& mergeInputs) |
| { |
| m_mergeInputs = mergeInputs; |
| } |
| |
| FloatRect FEMerge::uniteChildEffectSubregions(Filter* filter) |
| { |
| ASSERT(!m_mergeInputs.isEmpty()); |
| |
| FloatRect uniteEffectRect = m_mergeInputs[0]->calculateEffectRect(filter); |
| |
| for (unsigned i = 1; i < m_mergeInputs.size(); i++) |
| uniteEffectRect.unite(m_mergeInputs[i]->calculateEffectRect(filter)); |
| |
| return uniteEffectRect; |
| } |
| |
| void FEMerge::apply(Filter* filter) |
| { |
| ASSERT(!m_mergeInputs.isEmpty()); |
| |
| for (unsigned i = 0; i < m_mergeInputs.size(); i++) { |
| m_mergeInputs[i]->apply(filter); |
| if (!m_mergeInputs[i]->resultImage()) |
| return; |
| } |
| |
| GraphicsContext* filterContext = getEffectContext(); |
| if (!filterContext) |
| return; |
| |
| for (unsigned i = 0; i < m_mergeInputs.size(); i++) { |
| FloatRect destRect = calculateDrawingRect(m_mergeInputs[i]->scaledSubRegion()); |
| filterContext->drawImage(m_mergeInputs[i]->resultImage()->image(), DeviceColorSpace, destRect); |
| } |
| } |
| |
| void FEMerge::dump() |
| { |
| } |
| |
| TextStream& FEMerge::externalRepresentation(TextStream& ts) const |
| { |
| ts << "[type=MERGE] "; |
| FilterEffect::externalRepresentation(ts); |
| ts << "[merge inputs=["; |
| unsigned x = 0; |
| unsigned size = m_mergeInputs.size(); |
| while (x < size) { |
| ts << m_mergeInputs[x]; |
| x++; |
| if (x < m_mergeInputs.size()) |
| ts << ", "; |
| } |
| ts << "]]"; |
| return ts; |
| } |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(SVG) && ENABLE(FILTERS) |