1 /* 2 * Copyright (C) 2008 Alex Mathews <possessedpenguinbob (at) gmail.com> 3 * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann (at) kde.org> 4 * Copyright (C) 2004, 2005 Rob Buis <buis (at) kde.org> 5 * Copyright (C) 2005 Eric Seidel <eric (at) 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 28 namespace blink { 29 30 class PLATFORM_EXPORT PointLightSource : public LightSource { 31 public: 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 setPosition(const FloatPoint3D&) OVERRIDE; 45 46 virtual void initPaintingData(PaintingData&) const OVERRIDE; 47 virtual void updatePaintingData(PaintingData&, int x, int y, float z) const OVERRIDE; 48 49 virtual TextStream& externalRepresentation(TextStream&) const OVERRIDE; 50 51 private: 52 PointLightSource(const FloatPoint3D& position) 53 : LightSource(LS_POINT) 54 , m_position(position) 55 { 56 } 57 58 FloatPoint3D m_position; 59 }; 60 61 } // namespace blink 62 63 #endif // PointLightSource_h 64
