1 /* 2 * Copyright (C) 2009 Dirk Schulze <krit (at) webkit.org> 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public License 15 * along with this library; see the file COPYING.LIB. If not, write to 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 */ 19 20 #ifndef SVGFilter_h 21 #define SVGFilter_h 22 23 #if ENABLE(SVG) && ENABLE(FILTERS) 24 #include "AffineTransform.h" 25 #include "Filter.h" 26 #include "FilterEffect.h" 27 #include "FloatRect.h" 28 #include "FloatSize.h" 29 30 #include <wtf/PassRefPtr.h> 31 #include <wtf/RefCounted.h> 32 #include <wtf/RefPtr.h> 33 34 namespace WebCore { 35 36 class SVGFilter : public Filter { 37 public: 38 static PassRefPtr<SVGFilter> create(const AffineTransform&, const FloatRect&, const FloatRect&, const FloatRect&, bool); 39 40 virtual bool effectBoundingBoxMode() const { return m_effectBBoxMode; } 41 42 virtual FloatRect filterRegionInUserSpace() const { return m_filterRegion; } 43 virtual FloatRect filterRegion() const { return m_absoluteFilterRegion; } 44 45 virtual FloatPoint mapAbsolutePointToLocalPoint(const FloatPoint& point) const { return m_absoluteTransform.inverse().mapPoint(point); } 46 FloatRect mapLocalRectToAbsoluteRect(const FloatRect& rect) const { return m_absoluteTransform.mapRect(rect); } 47 48 virtual float applyHorizontalScale(float value) const; 49 virtual float applyVerticalScale(float value) const; 50 51 virtual FloatRect sourceImageRect() const { return m_absoluteSourceDrawingRegion; } 52 FloatRect targetBoundingBox() const { return m_targetBoundingBox; } 53 54 private: 55 SVGFilter(const AffineTransform& absoluteTransform, const FloatRect& absoluteSourceDrawingRegion, const FloatRect& targetBoundingBox, const FloatRect& filterRegion, bool effectBBoxMode); 56 57 AffineTransform m_absoluteTransform; 58 FloatRect m_absoluteSourceDrawingRegion; 59 FloatRect m_targetBoundingBox; 60 FloatRect m_absoluteFilterRegion; 61 FloatRect m_filterRegion; 62 bool m_effectBBoxMode; 63 }; 64 65 } // namespace WebCore 66 67 #endif // ENABLE(SVG) && ENABLE(FILTERS) 68 69 #endif // SVGFilter_h 70
