Home | History | Annotate | Download | only in filters
      1 /*
      2  * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann (at) kde.org>
      3  * Copyright (C) 2004, 2005 Rob Buis <buis (at) kde.org>
      4  * Copyright (C) 2005 Eric Seidel <eric (at) webkit.org>
      5  * Copyright (C) 2013 Google Inc. All rights reserved.
      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 FEOffset_h
     24 #define FEOffset_h
     25 
     26 #include "core/platform/graphics/filters/Filter.h"
     27 #include "core/platform/graphics/filters/FilterEffect.h"
     28 
     29 namespace WebCore {
     30 
     31 class FEOffset : public FilterEffect {
     32 public:
     33     static PassRefPtr<FEOffset> create(Filter*, float dx, float dy);
     34 
     35     float dx() const;
     36     void setDx(float);
     37 
     38     float dy() const;
     39     void setDy(float);
     40 
     41     virtual void determineAbsolutePaintRect();
     42     virtual FloatRect mapRect(const FloatRect&, bool forward = true) OVERRIDE FINAL;
     43 
     44     virtual TextStream& externalRepresentation(TextStream&, int indention) const;
     45 
     46     virtual PassRefPtr<SkImageFilter> createImageFilter(SkiaImageFilterBuilder*) OVERRIDE;
     47 
     48 private:
     49     FEOffset(Filter*, float dx, float dy);
     50 
     51     virtual void applySoftware() OVERRIDE;
     52 
     53     float m_dx;
     54     float m_dy;
     55 };
     56 
     57 } // namespace WebCore
     58 
     59 #endif // FEOffset_h
     60