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 * Copyright (C) 2013 Google Inc. All rights reserved.
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15 * Library General Public License for more details.
16 *
17 * You should have received a copy of the GNU Library General Public License
18 * along with this library; see the file COPYING.LIB.  If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 * Boston, MA 02110-1301, USA.
21 */
22
23#ifndef FEDiffuseLighting_h
24#define FEDiffuseLighting_h
25
26#include "platform/graphics/filters/FELighting.h"
27
28namespace blink {
29
30class LightSource;
31
32class PLATFORM_EXPORT FEDiffuseLighting : public FELighting {
33public:
34    static PassRefPtr<FEDiffuseLighting> create(Filter*, const Color&, float, float,
35        float, float, PassRefPtr<LightSource>);
36    virtual ~FEDiffuseLighting();
37
38    Color lightingColor() const;
39    bool setLightingColor(const Color&);
40
41    float surfaceScale() const;
42    bool setSurfaceScale(float);
43
44    float diffuseConstant() const;
45    bool setDiffuseConstant(float);
46
47    float kernelUnitLengthX() const;
48    bool setKernelUnitLengthX(float);
49
50    float kernelUnitLengthY() const;
51    bool setKernelUnitLengthY(float);
52
53    const LightSource* lightSource() const;
54    void setLightSource(PassRefPtr<LightSource>);
55
56    virtual TextStream& externalRepresentation(TextStream&, int indention) const OVERRIDE;
57
58private:
59    FEDiffuseLighting(Filter*, const Color&, float, float, float, float, PassRefPtr<LightSource>);
60};
61
62} // namespace blink
63
64#endif // FEDiffuseLighting_h
65