1 /* 2 * Copyright (C) 2009 Dirk Schulze <krit (at) webkit.org> 3 * Copyright (C) 2013 Google Inc. All rights reserved. 4 * 5 * This library is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU Library General Public 7 * License as published by the Free Software Foundation; either 8 * version 2 of the License, or (at your option) any later version. 9 * 10 * This library is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 * Library General Public License for more details. 14 * 15 * You should have received a copy of the GNU Library General Public License 16 * along with this library; see the file COPYING.LIB. If not, write to 17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 18 * Boston, MA 02110-1301, USA. 19 */ 20 21 #ifndef SourceAlpha_h 22 #define SourceAlpha_h 23 24 #include "core/platform/graphics/filters/Filter.h" 25 #include "core/platform/graphics/filters/FilterEffect.h" 26 27 namespace WebCore { 28 29 class SourceAlpha : public FilterEffect { 30 public: 31 static PassRefPtr<SourceAlpha> create(Filter*); 32 33 static const AtomicString& effectName(); 34 35 virtual void determineAbsolutePaintRect(); 36 37 virtual FilterEffectType filterEffectType() const { return FilterEffectTypeSourceInput; } 38 39 virtual TextStream& externalRepresentation(TextStream&, int indention) const; 40 41 private: 42 SourceAlpha(Filter* filter) 43 : FilterEffect(filter) 44 { 45 } 46 47 virtual void applySoftware() OVERRIDE; 48 }; 49 50 } //namespace WebCore 51 52 #endif // SourceAlpha_h 53
