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 #include "config.h" 24 #include "platform/graphics/filters/FEDiffuseLighting.h" 25 26 #include "platform/graphics/filters/LightSource.h" 27 #include "platform/text/TextStream.h" 28 29 namespace blink { 30 31 FEDiffuseLighting::FEDiffuseLighting(Filter* filter, const Color& lightingColor, float surfaceScale, 32 float diffuseConstant, float kernelUnitLengthX, float kernelUnitLengthY, PassRefPtr<LightSource> lightSource) 33 : FELighting(filter, DiffuseLighting, lightingColor, surfaceScale, diffuseConstant, 0, 0, kernelUnitLengthX, kernelUnitLengthY, lightSource) 34 { 35 } 36 37 PassRefPtr<FEDiffuseLighting> FEDiffuseLighting::create(Filter* filter, const Color& lightingColor, 38 float surfaceScale, float diffuseConstant, float kernelUnitLengthX, 39 float kernelUnitLengthY, PassRefPtr<LightSource> lightSource) 40 { 41 return adoptRef(new FEDiffuseLighting(filter, lightingColor, surfaceScale, diffuseConstant, kernelUnitLengthX, kernelUnitLengthY, lightSource)); 42 } 43 44 FEDiffuseLighting::~FEDiffuseLighting() 45 { 46 } 47 48 Color FEDiffuseLighting::lightingColor() const 49 { 50 return m_lightingColor; 51 } 52 53 bool FEDiffuseLighting::setLightingColor(const Color& lightingColor) 54 { 55 if (m_lightingColor == lightingColor) 56 return false; 57 m_lightingColor = lightingColor; 58 return true; 59 } 60 61 float FEDiffuseLighting::surfaceScale() const 62 { 63 return m_surfaceScale; 64 } 65 66 bool FEDiffuseLighting::setSurfaceScale(float surfaceScale) 67 { 68 if (m_surfaceScale == surfaceScale) 69 return false; 70 m_surfaceScale = surfaceScale; 71 return true; 72 } 73 74 float FEDiffuseLighting::diffuseConstant() const 75 { 76 return m_diffuseConstant; 77 } 78 79 bool FEDiffuseLighting::setDiffuseConstant(float diffuseConstant) 80 { 81 diffuseConstant = std::max(diffuseConstant, 0.0f); 82 if (m_diffuseConstant == diffuseConstant) 83 return false; 84 m_diffuseConstant = diffuseConstant; 85 return true; 86 } 87 88 float FEDiffuseLighting::kernelUnitLengthX() const 89 { 90 return m_kernelUnitLengthX; 91 } 92 93 bool FEDiffuseLighting::setKernelUnitLengthX(float kernelUnitLengthX) 94 { 95 if (m_kernelUnitLengthX == kernelUnitLengthX) 96 return false; 97 m_kernelUnitLengthX = kernelUnitLengthX; 98 return true; 99 } 100 101 float FEDiffuseLighting::kernelUnitLengthY() const 102 { 103 return m_kernelUnitLengthY; 104 } 105 106 bool FEDiffuseLighting::setKernelUnitLengthY(float kernelUnitLengthY) 107 { 108 if (m_kernelUnitLengthY == kernelUnitLengthY) 109 return false; 110 m_kernelUnitLengthY = kernelUnitLengthY; 111 return true; 112 } 113 114 const LightSource* FEDiffuseLighting::lightSource() const 115 { 116 return m_lightSource.get(); 117 } 118 119 void FEDiffuseLighting::setLightSource(PassRefPtr<LightSource> lightSource) 120 { 121 m_lightSource = lightSource; 122 } 123 124 TextStream& FEDiffuseLighting::externalRepresentation(TextStream& ts, int indent) const 125 { 126 writeIndent(ts, indent); 127 ts << "[feDiffuseLighting"; 128 FilterEffect::externalRepresentation(ts); 129 ts << " surfaceScale=\"" << m_surfaceScale << "\" " 130 << "diffuseConstant=\"" << m_diffuseConstant << "\" " 131 << "kernelUnitLength=\"" << m_kernelUnitLengthX << ", " << m_kernelUnitLengthY << "\"]\n"; 132 inputEffect(0)->externalRepresentation(ts, indent + 1); 133 return ts; 134 } 135 136 } // namespace blink 137