1 /* 2 Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org> 3 2004, 2005 Rob Buis <buis@kde.org> 4 2005 Eric Seidel <eric@webkit.org> 5 6 This library is free software; you can redistribute it and/or 7 modify it under the terms of the GNU Library General Public 8 License as published by the Free Software Foundation; either 9 version 2 of the License, or (at your option) any later version. 10 11 This library is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 Library General Public License for more details. 15 16 You should have received a copy of the GNU Library General Public License 17 aint with this library; see the file COPYING.LIB. If not, write to 18 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 19 Boston, MA 02110-1301, USA. 20 */ 21 22 #ifndef SVGFEBlend_h 23 #define SVGFEBlend_h 24 25 #if ENABLE(FILTERS) 26 #include "FilterEffect.h" 27 28 #include "Filter.h" 29 30 namespace WebCore { 31 32 enum BlendModeType { 33 FEBLEND_MODE_UNKNOWN = 0, 34 FEBLEND_MODE_NORMAL = 1, 35 FEBLEND_MODE_MULTIPLY = 2, 36 FEBLEND_MODE_SCREEN = 3, 37 FEBLEND_MODE_DARKEN = 4, 38 FEBLEND_MODE_LIGHTEN = 5 39 }; 40 41 class FEBlend : public FilterEffect { 42 public: 43 static PassRefPtr<FEBlend> create(FilterEffect*, FilterEffect*, BlendModeType); 44 45 FilterEffect* in2() const; 46 void setIn2(FilterEffect*); 47 48 BlendModeType blendMode() const; 49 void setBlendMode(BlendModeType); 50 uniteChildEffectSubregions(Filter * filter)51 virtual FloatRect uniteChildEffectSubregions(Filter* filter) { return calculateUnionOfChildEffectSubregions(filter, m_in.get(), m_in2.get()); } 52 void apply(Filter*); 53 void dump(); 54 55 private: 56 FEBlend(FilterEffect*, FilterEffect*, BlendModeType); 57 58 RefPtr<FilterEffect> m_in; 59 RefPtr<FilterEffect> m_in2; 60 BlendModeType m_mode; 61 }; 62 63 } // namespace WebCore 64 65 #endif // ENABLE(FILTERS) 66 67 #endif // SVGFEBlend_h 68