1 /* 2 Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann (at) kde.org> 3 2004, 2005, 2010 Rob Buis <buis (at) kde.org> 4 Copyright (C) Research In Motion Limited 2010. All rights reserved. 5 6 Based on khtml code by: 7 Copyright (C) 1999 Antti Koivisto (koivisto (at) kde.org) 8 Copyright (C) 1999-2003 Lars Knoll (knoll (at) kde.org) 9 Copyright (C) 2002-2003 Dirk Mueller (mueller (at) kde.org) 10 Copyright (C) 2002 Apple Computer, Inc. 11 12 This library is free software; you can redistribute it and/or 13 modify it under the terms of the GNU Library General Public 14 License as published by the Free Software Foundation; either 15 version 2 of the License, or (at your option) any later version. 16 17 This library is distributed in the hope that it will be useful, 18 but WITHOUT ANY WARRANTY; without even the implied warranty of 19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 20 Library General Public License for more details. 21 22 You should have received a copy of the GNU Library General Public License 23 along with this library; see the file COPYING.LIB. If not, write to 24 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 25 Boston, MA 02110-1301, USA. 26 */ 27 28 #include "config.h" 29 30 #include "core/rendering/style/SVGRenderStyle.h" 31 32 33 using namespace std; 34 35 namespace WebCore { 36 37 SVGRenderStyle::SVGRenderStyle() 38 { 39 static SVGRenderStyle* defaultStyle = new SVGRenderStyle(CreateDefault); 40 41 fill = defaultStyle->fill; 42 stroke = defaultStyle->stroke; 43 stops = defaultStyle->stops; 44 misc = defaultStyle->misc; 45 inheritedResources = defaultStyle->inheritedResources; 46 resources = defaultStyle->resources; 47 48 setBitDefaults(); 49 } 50 51 SVGRenderStyle::SVGRenderStyle(CreateDefaultType) 52 { 53 setBitDefaults(); 54 55 fill.init(); 56 stroke.init(); 57 stops.init(); 58 misc.init(); 59 inheritedResources.init(); 60 resources.init(); 61 } 62 63 SVGRenderStyle::SVGRenderStyle(const SVGRenderStyle& other) 64 : RefCounted<SVGRenderStyle>() 65 { 66 fill = other.fill; 67 stroke = other.stroke; 68 stops = other.stops; 69 misc = other.misc; 70 inheritedResources = other.inheritedResources; 71 resources = other.resources; 72 73 svg_inherited_flags = other.svg_inherited_flags; 74 svg_noninherited_flags = other.svg_noninherited_flags; 75 } 76 77 SVGRenderStyle::~SVGRenderStyle() 78 { 79 } 80 81 bool SVGRenderStyle::operator==(const SVGRenderStyle& other) const 82 { 83 return fill == other.fill 84 && stroke == other.stroke 85 && stops == other.stops 86 && misc == other.misc 87 && inheritedResources == other.inheritedResources 88 && resources == other.resources 89 && svg_inherited_flags == other.svg_inherited_flags 90 && svg_noninherited_flags == other.svg_noninherited_flags; 91 } 92 93 bool SVGRenderStyle::inheritedNotEqual(const SVGRenderStyle* other) const 94 { 95 return fill != other->fill 96 || stroke != other->stroke 97 || inheritedResources != other->inheritedResources 98 || svg_inherited_flags != other->svg_inherited_flags; 99 } 100 101 void SVGRenderStyle::inheritFrom(const SVGRenderStyle* svgInheritParent) 102 { 103 if (!svgInheritParent) 104 return; 105 106 fill = svgInheritParent->fill; 107 stroke = svgInheritParent->stroke; 108 inheritedResources = svgInheritParent->inheritedResources; 109 110 svg_inherited_flags = svgInheritParent->svg_inherited_flags; 111 } 112 113 void SVGRenderStyle::copyNonInheritedFrom(const SVGRenderStyle* other) 114 { 115 svg_noninherited_flags = other->svg_noninherited_flags; 116 stops = other->stops; 117 misc = other->misc; 118 resources = other->resources; 119 } 120 121 StyleDifference SVGRenderStyle::diff(const SVGRenderStyle* other) const 122 { 123 StyleDifference styleDifference; 124 125 if (diffNeedsLayoutAndRepaint(other)) { 126 styleDifference.setNeedsFullLayout(); 127 styleDifference.setNeedsRepaintObject(); 128 } else if (diffNeedsRepaint(other)) { 129 styleDifference.setNeedsRepaintObject(); 130 } 131 132 return styleDifference; 133 } 134 135 bool SVGRenderStyle::diffNeedsLayoutAndRepaint(const SVGRenderStyle* other) const 136 { 137 // If resources change, we need a relayout, as the presence of resources influences the repaint rect. 138 if (resources != other->resources) 139 return true; 140 141 // If markers change, we need a relayout, as marker boundaries are cached in RenderSVGPath. 142 if (inheritedResources != other->inheritedResources) 143 return true; 144 145 // All text related properties influence layout. 146 if (svg_inherited_flags._textAnchor != other->svg_inherited_flags._textAnchor 147 || svg_inherited_flags._writingMode != other->svg_inherited_flags._writingMode 148 || svg_inherited_flags._glyphOrientationHorizontal != other->svg_inherited_flags._glyphOrientationHorizontal 149 || svg_inherited_flags._glyphOrientationVertical != other->svg_inherited_flags._glyphOrientationVertical 150 || svg_noninherited_flags.f._alignmentBaseline != other->svg_noninherited_flags.f._alignmentBaseline 151 || svg_noninherited_flags.f._dominantBaseline != other->svg_noninherited_flags.f._dominantBaseline 152 || svg_noninherited_flags.f._baselineShift != other->svg_noninherited_flags.f._baselineShift) 153 return true; 154 155 // Text related properties influence layout. 156 if (misc->baselineShiftValue != other->misc->baselineShiftValue) 157 return true; 158 159 // These properties affect the cached stroke bounding box rects. 160 if (svg_inherited_flags._capStyle != other->svg_inherited_flags._capStyle 161 || svg_inherited_flags._joinStyle != other->svg_inherited_flags._joinStyle) 162 return true; 163 164 // vector-effect changes require a re-layout. 165 if (svg_noninherited_flags.f._vectorEffect != other->svg_noninherited_flags.f._vectorEffect) 166 return true; 167 168 // Some stroke properties, requires relayouts, as the cached stroke boundaries need to be recalculated. 169 if (stroke.get() != other->stroke.get()) { 170 if (stroke->width != other->stroke->width 171 || stroke->paintType != other->stroke->paintType 172 || stroke->paintColor != other->stroke->paintColor 173 || stroke->paintUri != other->stroke->paintUri 174 || stroke->miterLimit != other->stroke->miterLimit 175 || stroke->dashArray != other->stroke->dashArray 176 || stroke->dashOffset != other->stroke->dashOffset 177 || stroke->visitedLinkPaintColor != other->stroke->visitedLinkPaintColor 178 || stroke->visitedLinkPaintUri != other->stroke->visitedLinkPaintUri 179 || stroke->visitedLinkPaintType != other->stroke->visitedLinkPaintType) 180 return true; 181 } 182 183 return false; 184 } 185 186 bool SVGRenderStyle::diffNeedsRepaint(const SVGRenderStyle* other) const 187 { 188 if (stroke->opacity != other->stroke->opacity) 189 return true; 190 191 // Painting related properties only need repaints. 192 if (misc.get() != other->misc.get()) { 193 if (misc->floodColor != other->misc->floodColor 194 || misc->floodOpacity != other->misc->floodOpacity 195 || misc->lightingColor != other->misc->lightingColor) 196 return true; 197 } 198 199 // If fill changes, we just need to repaint. Fill boundaries are not influenced by this, only by the Path, that RenderSVGPath contains. 200 if (fill.get() != other->fill.get()) { 201 if (fill->paintType != other->fill->paintType 202 || fill->paintColor != other->fill->paintColor 203 || fill->paintUri != other->fill->paintUri 204 || fill->opacity != other->fill->opacity) 205 return true; 206 } 207 208 // If gradient stops change, we just need to repaint. Style updates are already handled through RenderSVGGradientSTop. 209 if (stops != other->stops) 210 return true; 211 212 // Changes of these flags only cause repaints. 213 if (svg_inherited_flags._colorRendering != other->svg_inherited_flags._colorRendering 214 || svg_inherited_flags._shapeRendering != other->svg_inherited_flags._shapeRendering 215 || svg_inherited_flags._clipRule != other->svg_inherited_flags._clipRule 216 || svg_inherited_flags._fillRule != other->svg_inherited_flags._fillRule 217 || svg_inherited_flags._colorInterpolation != other->svg_inherited_flags._colorInterpolation 218 || svg_inherited_flags._colorInterpolationFilters != other->svg_inherited_flags._colorInterpolationFilters 219 || svg_inherited_flags._paintOrder != other->svg_inherited_flags._paintOrder) 220 return true; 221 222 if (svg_noninherited_flags.f.bufferedRendering != other->svg_noninherited_flags.f.bufferedRendering) 223 return true; 224 225 if (svg_noninherited_flags.f.maskType != other->svg_noninherited_flags.f.maskType) 226 return true; 227 228 return false; 229 } 230 231 EPaintOrderType SVGRenderStyle::paintOrderType(unsigned index) const 232 { 233 ASSERT(index < ((1 << kPaintOrderBitwidth)-1)); 234 unsigned pt = (paintOrder() >> (kPaintOrderBitwidth*index)) & ((1u << kPaintOrderBitwidth) - 1); 235 return (EPaintOrderType)pt; 236 } 237 238 } 239
