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1 /*
2  * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org>
3  * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
4  * Copyright (C) 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  * 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.
20  */
21 
22 #ifndef FEGaussianBlur_h
23 #define FEGaussianBlur_h
24 
25 #if ENABLE(FILTERS)
26 #include "FilterEffect.h"
27 #include "Filter.h"
28 
29 namespace WebCore {
30 
31 class FEGaussianBlur : public FilterEffect {
32 public:
33     static PassRefPtr<FEGaussianBlur> create(Filter*, float, float);
34 
35     float stdDeviationX() const;
36     void setStdDeviationX(float);
37 
38     float stdDeviationY() const;
39     void setStdDeviationY(float);
40 
41     static float calculateStdDeviation(float);
42 
43     virtual void apply();
44     virtual void dump();
45 
46     virtual void determineAbsolutePaintRect();
47 
48     virtual TextStream& externalRepresentation(TextStream&, int indention) const;
49 
50 private:
51     FEGaussianBlur(Filter*, float, float);
52 
53     float m_stdX;
54     float m_stdY;
55 };
56 
57 } // namespace WebCore
58 
59 #endif // ENABLE(FILTERS)
60 
61 #endif // FEGaussianBlur_h
62