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      1 /*
      2  *  Copyright (C) 2009 Dirk Schulze <krit (at) webkit.org>
      3  *
      4  *   This library is free software; you can redistribute it and/or
      5  *  modify it under the terms of the GNU Library General Public
      6  *  License as published by the Free Software Foundation; either
      7  *  version 2 of the License, or (at your option) any later version.
      8  *
      9  *  This library is distributed in the hope that it will be useful,
     10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
     11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     12  *  Library General Public License for more details.
     13  *
     14  *  You should have received a copy of the GNU Library General Public License
     15  *  aint with this library; see the file COPYING.LIB.  If not, write to
     16  *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     17  *  Boston, MA 02110-1301, USA.
     18  */
     19 
     20 #ifndef SVGFilter_h
     21 #define SVGFilter_h
     22 
     23 #if ENABLE(SVG) && ENABLE(FILTERS)
     24 #include "Filter.h"
     25 #include "FilterEffect.h"
     26 #include "FloatRect.h"
     27 #include "FloatSize.h"
     28 
     29 #include <wtf/PassRefPtr.h>
     30 #include <wtf/RefCounted.h>
     31 #include <wtf/RefPtr.h>
     32 
     33 namespace WebCore {
     34 
     35     class SVGFilter : public Filter {
     36     public:
     37         static PassRefPtr<SVGFilter> create(const FloatRect&, const FloatRect&, bool);
     38 
     39         virtual bool effectBoundingBoxMode() const { return m_effectBBoxMode; }
     40 
     41         virtual FloatRect filterRegion() const { return m_filterRect; }
     42         virtual FloatRect sourceImageRect() const { return m_itemBox; }
     43 
     44         virtual FloatSize maxImageSize() const { return m_maxImageSize; }
     45         virtual void calculateEffectSubRegion(FilterEffect*);
     46 
     47     private:
     48         SVGFilter(const FloatRect& itemBox, const FloatRect& filterRect, bool effectBBoxMode);
     49 
     50         FloatSize m_maxImageSize;
     51         FloatRect m_itemBox;
     52         FloatRect m_filterRect;
     53         bool m_effectBBoxMode;
     54     };
     55 
     56 } // namespace WebCore
     57 
     58 #endif // ENABLE(SVG) && ENABLE(FILTERS)
     59 
     60 #endif // SVGFilter_h
     61