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) 2010 Zoltan Herczeg <zherczeg@webkit.org>
6 * Copyright (C) 2011 University of Szeged
7 * Copyright (C) 2011 Renata Hodovan <reni@webkit.org>
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY UNIVERSITY OF SZEGED ``AS IS'' AND ANY
19 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL UNIVERSITY OF SZEGED OR
22 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
25 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
26 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#include "config.h"
32#include "platform/graphics/filters/PointLightSource.h"
33
34#include "platform/text/TextStream.h"
35
36namespace WebCore {
37
38void PointLightSource::initPaintingData(PaintingData&) const
39{
40}
41
42void PointLightSource::updatePaintingData(PaintingData& paintingData, int x, int y, float z) const
43{
44    paintingData.lightVector.setX(m_position.x() - x);
45    paintingData.lightVector.setY(m_position.y() - y);
46    paintingData.lightVector.setZ(m_position.z() - z);
47    paintingData.lightVectorLength = paintingData.lightVector.length();
48}
49
50bool PointLightSource::setX(float x)
51{
52    if (m_position.x() == x)
53        return false;
54    m_position.setX(x);
55    return true;
56}
57
58bool PointLightSource::setY(float y)
59{
60    if (m_position.y() == y)
61        return false;
62    m_position.setY(y);
63    return true;
64}
65
66bool PointLightSource::setZ(float z)
67{
68    if (m_position.z() == z)
69        return false;
70    m_position.setZ(z);
71    return true;
72}
73
74static TextStream& operator<<(TextStream& ts, const FloatPoint3D& p)
75{
76    ts << "x=" << p.x() << " y=" << p.y() << " z=" << p.z();
77    return ts;
78}
79
80TextStream& PointLightSource::externalRepresentation(TextStream& ts) const
81{
82    ts << "[type=POINT-LIGHT] ";
83    ts << "[position=\"" << position() << "\"]";
84    return ts;
85}
86
87}; // namespace WebCore
88