1 /* 2 Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann (at) kde.org> 3 2004, 2005 Rob Buis <buis (at) kde.org> 4 2005 Eric Seidel <eric (at) webkit.org> 5 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. 10 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. 15 16 You should have received a copy of the GNU Library General Public License 17 aint 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. 20 */ 21 22 #ifndef SVGFEConvolveMatrix_h 23 #define SVGFEConvolveMatrix_h 24 25 #if ENABLE(SVG) && ENABLE(FILTERS) 26 #include "FilterEffect.h" 27 #include "FloatPoint.h" 28 #include "FloatSize.h" 29 #include "Filter.h" 30 #include <wtf/Vector.h> 31 32 namespace WebCore { 33 34 enum EdgeModeType { 35 EDGEMODE_UNKNOWN = 0, 36 EDGEMODE_DUPLICATE = 1, 37 EDGEMODE_WRAP = 2, 38 EDGEMODE_NONE = 3 39 }; 40 41 class FEConvolveMatrix : public FilterEffect { 42 public: 43 static PassRefPtr<FEConvolveMatrix> create(FilterEffect*, FilterEffect*, const FloatSize&, 44 const float&, const float&, const FloatSize&, EdgeModeType, const FloatPoint&, 45 bool, const Vector<float>&); 46 47 FloatSize kernelSize() const; 48 void setKernelSize(FloatSize); 49 50 const Vector<float>& kernel() const; 51 void setKernel(const Vector<float>&); 52 53 float divisor() const; 54 void setDivisor(float); 55 56 float bias() const; 57 void setBias(float); 58 59 FloatSize targetOffset() const; 60 void setTargetOffset(FloatSize); 61 62 EdgeModeType edgeMode() const; 63 void setEdgeMode(EdgeModeType); 64 65 FloatPoint kernelUnitLength() const; 66 void setKernelUnitLength(FloatPoint); 67 68 bool preserveAlpha() const; 69 void setPreserveAlpha(bool); 70 71 virtual FloatRect uniteChildEffectSubregions(Filter* filter) { return calculateUnionOfChildEffectSubregions(filter, m_in.get(), m_in2.get()); } 72 void apply(Filter*); 73 void dump(); 74 TextStream& externalRepresentation(TextStream& ts) const; 75 76 private: 77 FEConvolveMatrix(FilterEffect*, FilterEffect*, const FloatSize&, const float&, const float&, 78 const FloatSize&, EdgeModeType, const FloatPoint&, bool, const Vector<float>&); 79 80 RefPtr<FilterEffect> m_in; 81 RefPtr<FilterEffect> m_in2; 82 FloatSize m_kernelSize; 83 float m_divisor; 84 float m_bias; 85 FloatSize m_targetOffset; 86 EdgeModeType m_edgeMode; 87 FloatPoint m_kernelUnitLength; 88 bool m_preserveAlpha; 89 Vector<float> m_kernelMatrix; 90 }; 91 92 } // namespace WebCore 93 94 #endif // ENABLE(SVG) && ENABLE(FILTERS) 95 96 #endif // SVGFEConvolveMatrix_h 97
