| /* |
| Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org> |
| 2004, 2005 Rob Buis <buis@kde.org> |
| 2005 Eric Seidel <eric@webkit.org> |
| |
| This library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Library General Public |
| License as published by the Free Software Foundation; either |
| version 2 of the License, or (at your option) any later version. |
| |
| This library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Library General Public License for more details. |
| |
| You should have received a copy of the GNU Library General Public License |
| aint with this library; see the file COPYING.LIB. If not, write to |
| the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| Boston, MA 02110-1301, USA. |
| */ |
| |
| #ifndef SVGFEComponentTransfer_h |
| #define SVGFEComponentTransfer_h |
| |
| #if ENABLE(FILTERS) |
| #include "FilterEffect.h" |
| |
| #include "Filter.h" |
| #include <wtf/Vector.h> |
| |
| namespace WebCore { |
| |
| enum ComponentTransferType { |
| FECOMPONENTTRANSFER_TYPE_UNKNOWN = 0, |
| FECOMPONENTTRANSFER_TYPE_IDENTITY = 1, |
| FECOMPONENTTRANSFER_TYPE_TABLE = 2, |
| FECOMPONENTTRANSFER_TYPE_DISCRETE = 3, |
| FECOMPONENTTRANSFER_TYPE_LINEAR = 4, |
| FECOMPONENTTRANSFER_TYPE_GAMMA = 5 |
| }; |
| |
| struct ComponentTransferFunction { |
| ComponentTransferFunction() |
| : type(FECOMPONENTTRANSFER_TYPE_UNKNOWN) |
| , slope(0.0f) |
| , intercept(0.0f) |
| , amplitude(0.0f) |
| , exponent(0.0f) |
| , offset(0.0f) |
| { |
| } |
| |
| ComponentTransferType type; |
| |
| float slope; |
| float intercept; |
| float amplitude; |
| float exponent; |
| float offset; |
| |
| Vector<float> tableValues; |
| }; |
| |
| class FEComponentTransfer : public FilterEffect { |
| public: |
| static PassRefPtr<FEComponentTransfer> create(FilterEffect*, const ComponentTransferFunction&, |
| const ComponentTransferFunction&, const ComponentTransferFunction&, const ComponentTransferFunction&); |
| |
| ComponentTransferFunction redFunction() const; |
| void setRedFunction(const ComponentTransferFunction&); |
| |
| ComponentTransferFunction greenFunction() const; |
| void setGreenFunction(const ComponentTransferFunction&); |
| |
| ComponentTransferFunction blueFunction() const; |
| void setBlueFunction(const ComponentTransferFunction&); |
| |
| ComponentTransferFunction alphaFunction() const; |
| void setAlphaFunction(const ComponentTransferFunction&); |
| |
| virtual FloatRect uniteChildEffectSubregions(Filter* filter) { return calculateUnionOfChildEffectSubregions(filter, m_in.get()); } |
| void apply(Filter*); |
| void dump(); |
| |
| private: |
| FEComponentTransfer(FilterEffect*,const ComponentTransferFunction&, const ComponentTransferFunction&, |
| const ComponentTransferFunction&, const ComponentTransferFunction&); |
| |
| RefPtr<FilterEffect> m_in; |
| ComponentTransferFunction m_redFunc; |
| ComponentTransferFunction m_greenFunc; |
| ComponentTransferFunction m_blueFunc; |
| ComponentTransferFunction m_alphaFunc; |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(FILTERS) |
| |
| #endif // SVGFEComponentTransfer_h |