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      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 DistantLightSource_h
     24 #define DistantLightSource_h
     25 
     26 #include "platform/graphics/filters/LightSource.h"
     27 
     28 namespace blink {
     29 
     30 class PLATFORM_EXPORT DistantLightSource : public LightSource {
     31 public:
     32     static PassRefPtr<DistantLightSource> create(float azimuth, float elevation)
     33     {
     34         return adoptRef(new DistantLightSource(azimuth, elevation));
     35     }
     36 
     37     virtual PassRefPtr<LightSource> create(const FloatPoint3D& scale, const FloatSize& offset) const OVERRIDE
     38     {
     39         return adoptRef(new DistantLightSource(m_azimuth, m_elevation));
     40     }
     41 
     42     float azimuth() const { return m_azimuth; }
     43     float elevation() const { return m_elevation; }
     44 
     45     virtual bool setAzimuth(float) OVERRIDE;
     46     virtual bool setElevation(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 
     53 private:
     54     DistantLightSource(float azimuth, float elevation)
     55         : LightSource(LS_DISTANT)
     56         , m_azimuth(azimuth)
     57         , m_elevation(elevation)
     58     {
     59     }
     60 
     61     float m_azimuth;
     62     float m_elevation;
     63 };
     64 
     65 } // namespace blink
     66 
     67 #endif // DistantLightSource_h
     68