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