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 * along 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 SourceAlpha_h 21 #define SourceAlpha_h 22 23 #if ENABLE(FILTERS) 24 #include "FilterEffect.h" 25 26 #include "PlatformString.h" 27 #include "Filter.h" 28 29 namespace WebCore { 30 31 class SourceAlpha : public FilterEffect { 32 public: 33 static PassRefPtr<SourceAlpha> create(Filter*); 34 35 static const AtomicString& effectName(); 36 37 virtual void apply(); 38 virtual void dump(); 39 40 virtual void determineAbsolutePaintRect(); 41 42 virtual FilterEffectType filterEffectType() const { return FilterEffectTypeSourceInput; } 43 44 virtual TextStream& externalRepresentation(TextStream&, int indention) const; 45 46 private: 47 SourceAlpha(Filter* filter) 48 : FilterEffect(filter) 49 { 50 } 51 }; 52 53 } //namespace WebCore 54 55 #endif // ENABLE(FILTERS) 56 57 #endif // SourceAlpha_h 58
