1/*
2 * Copyright (C) 2008 Alex Mathews <possessedpenguinbob@gmail.com>
3 * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org>
4 * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
5 * Copyright (C) 2005 Eric Seidel <eric@webkit.org>
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 PointLightSource_h
24#define PointLightSource_h
25
26#include "platform/graphics/filters/LightSource.h"
27
28namespace WebCore {
29
30class PLATFORM_EXPORT PointLightSource : public LightSource {
31public:
32    static PassRefPtr<PointLightSource> create(const FloatPoint3D& position)
33    {
34        return adoptRef(new PointLightSource(position));
35    }
36
37    virtual PassRefPtr<LightSource> create(const FloatPoint3D& scale, const FloatSize& offset) const OVERRIDE
38    {
39        FloatPoint3D position(m_position.x() * scale.x() - offset.width(), m_position.y() * scale.y() - offset.height(), m_position.z() * scale.z());
40        return adoptRef(new PointLightSource(position));
41    }
42
43    const FloatPoint3D& position() const { return m_position; }
44    virtual bool setX(float) OVERRIDE;
45    virtual bool setY(float) OVERRIDE;
46    virtual bool setZ(float) OVERRIDE;
47
48    virtual void initPaintingData(PaintingData&) const OVERRIDE;
49    virtual void updatePaintingData(PaintingData&, int x, int y, float z) const OVERRIDE;
50
51    virtual TextStream& externalRepresentation(TextStream&) const OVERRIDE;
52
53private:
54    PointLightSource(const FloatPoint3D& position)
55        : LightSource(LS_POINT)
56        , m_position(position)
57    {
58    }
59
60    FloatPoint3D m_position;
61};
62
63} // namespace WebCore
64
65#endif // PointLightSource_h
66