2 * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
3 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB. If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
23 #if ENABLE(SVG) && ENABLE(FILTERS)
24 #include "SVGFilter.h"
28 SVGFilter::SVGFilter(const AffineTransform& absoluteTransform, const FloatRect& absoluteSourceDrawingRegion, const FloatRect& targetBoundingBox, const FloatRect& filterRegion, bool effectBBoxMode)
30 , m_absoluteTransform(absoluteTransform)
31 , m_absoluteSourceDrawingRegion(absoluteSourceDrawingRegion)
32 , m_targetBoundingBox(targetBoundingBox)
33 , m_filterRegion(filterRegion)
34 , m_effectBBoxMode(effectBBoxMode)
36 m_absoluteFilterRegion = absoluteTransform.mapRect(filterRegion);
39 float SVGFilter::applyHorizontalScale(float value) const
42 value *= m_targetBoundingBox.width();
43 return Filter::applyHorizontalScale(value) * m_absoluteFilterRegion.width() / m_filterRegion.width();
46 float SVGFilter::applyVerticalScale(float value) const
49 value *= m_targetBoundingBox.height();
50 return Filter::applyVerticalScale(value) * m_absoluteFilterRegion.height() / m_filterRegion.height();
53 PassRefPtr<SVGFilter> SVGFilter::create(const AffineTransform& absoluteTransform, const FloatRect& absoluteSourceDrawingRegion, const FloatRect& targetBoundingBox, const FloatRect& filterRegion, bool effectBBoxMode)
55 return adoptRef(new SVGFilter(absoluteTransform, absoluteSourceDrawingRegion, targetBoundingBox, filterRegion, effectBBoxMode));
58 } // namespace WebCore
60 #endif // ENABLE(SVG) && ENABLE(FILTERS)