2 * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
3 * Copyright (C) Research In Motion Limited 2010. All rights reserved.
4 * Copyright (C) 2013 Google Inc. All rights reserved.
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Library General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Library General Public License for more details.
16 * You should have received a copy of the GNU Library General Public License
17 * along with this library; see the file COPYING.LIB. If not, write to
18 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19 * Boston, MA 02110-1301, USA.
25 #include "SVGFilter.h"
29 SVGFilter::SVGFilter(const AffineTransform& absoluteTransform, const FloatRect& absoluteSourceDrawingRegion, const FloatRect& targetBoundingBox, const FloatRect& filterRegion, bool effectBBoxMode)
30 : Filter(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(FILTERS)