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SVGFEConvolveMatrix.h
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1/*
2 Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org>
3 2004, 2005 Rob Buis <buis@kde.org>
4 2005 Eric Seidel <eric@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(SVG_FILTERS)
26#include "SVGFilterEffect.h"
27
28namespace WebCore {
29
30enum SVGEdgeModeType {
31 SVG_EDGEMODE_UNKNOWN = 0,
32 SVG_EDGEMODE_DUPLICATE = 1,
33 SVG_EDGEMODE_WRAP = 2,
34 SVG_EDGEMODE_NONE = 3
35};
36
37class SVGFEConvolveMatrix : public SVGFilterEffect {
38public:
39 SVGFEConvolveMatrix(SVGResourceFilter*);
40
41 FloatSize kernelSize() const;
42 void setKernelSize(FloatSize);
43
44 const Vector<float>& kernel() const;
45 void setKernel(const Vector<float>&);
46
47 float divisor() const;
48 void setDivisor(float);
49
50 float bias() const;
51 void setBias(float);
52
53 FloatSize targetOffset() const;
54 void setTargetOffset(FloatSize);
55
56 SVGEdgeModeType edgeMode() const;
57 void setEdgeMode(SVGEdgeModeType);
58
59 FloatPoint kernelUnitLength() const;
60 void setKernelUnitLength(FloatPoint);
61
62 bool preserveAlpha() const;
63 void setPreserveAlpha(bool);
64
65 virtual TextStream& externalRepresentation(TextStream&) const;
66
67private:
68 FloatSize m_kernelSize;
69 float m_divisor;
70 float m_bias;
71 FloatSize m_targetOffset;
72 SVGEdgeModeType m_edgeMode;
73 FloatPoint m_kernelUnitLength;
74 bool m_preserveAlpha;
75 Vector<float> m_kernelMatrix; // maybe should be a real matrix?
76};
77
78} // namespace WebCore
79
80#endif // ENABLE(SVG) && ENABLE(SVG_FILTERS)
81
82#endif // SVGFEConvolveMatrix_h
SVGFilterEffect.h
WebCore
Definition: CSSHelper.h:7
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