Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org> |
| 3 | * Copyright (C) 2004, 2005, 2008 Rob Buis <buis@kde.org> |
| 4 | * Copyright (C) 2005, 2007 Eric Seidel <eric@webkit.org> |
| 5 | * Copyright (C) 2009 Google, Inc. |
| 6 | * Copyright (C) 2009 Dirk Schulze <krit@webkit.org> |
| 7 | * Copyright (C) Research In Motion Limited 2010. All rights reserved. |
| 8 | * Copyright (C) 2009 Jeff Schiller <codedread@gmail.com> |
| 9 | * Copyright (C) 2011 Renata Hodovan <reni@webkit.org> |
| 10 | * Copyright (C) 2011 University of Szeged |
| 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 | |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 30 | #include "core/rendering/svg/RenderSVGShape.h" |
| 31 | |
| 32 | #include "core/platform/graphics/FloatPoint.h" |
Torne (Richard Coles) | 81a5157 | 2013-05-13 16:52:28 +0100 | [diff] [blame] | 33 | #include "core/platform/graphics/GraphicsContextStateSaver.h" |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 34 | #include "core/rendering/HitTestRequest.h" |
| 35 | #include "core/rendering/LayoutRepainter.h" |
| 36 | #include "core/rendering/PointerEventsHitRules.h" |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 37 | #include "core/rendering/svg/RenderSVGResourceMarker.h" |
| 38 | #include "core/rendering/svg/RenderSVGResourceSolidColor.h" |
| 39 | #include "core/rendering/svg/SVGPathData.h" |
| 40 | #include "core/rendering/svg/SVGRenderingContext.h" |
| 41 | #include "core/rendering/svg/SVGResources.h" |
| 42 | #include "core/rendering/svg/SVGResourcesCache.h" |
Ben Murdoch | 591b958 | 2013-07-10 11:41:44 +0100 | [diff] [blame] | 43 | #include "core/svg/SVGGraphicsElement.h" |
Ben Murdoch | 02772c6 | 2013-07-26 10:21:05 +0100 | [diff] [blame^] | 44 | #include "wtf/MathExtras.h" |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 45 | |
| 46 | namespace WebCore { |
| 47 | |
Ben Murdoch | 591b958 | 2013-07-10 11:41:44 +0100 | [diff] [blame] | 48 | RenderSVGShape::RenderSVGShape(SVGGraphicsElement* node) |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 49 | : RenderSVGModelObject(node) |
| 50 | , m_needsBoundariesUpdate(false) // Default is false, the cached rects are empty from the beginning. |
Ben Murdoch | 591b958 | 2013-07-10 11:41:44 +0100 | [diff] [blame] | 51 | , m_needsShapeUpdate(true) // Default is true, so we grab a Path object once from SVGGraphicsElement. |
| 52 | , m_needsTransformUpdate(true) // Default is true, so we grab a AffineTransform object once from SVGGraphicsElement. |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 53 | { |
| 54 | } |
| 55 | |
| 56 | RenderSVGShape::~RenderSVGShape() |
| 57 | { |
| 58 | } |
| 59 | |
| 60 | void RenderSVGShape::updateShapeFromElement() |
| 61 | { |
| 62 | m_path.clear(); |
| 63 | m_path = adoptPtr(new Path); |
| 64 | ASSERT(RenderSVGShape::isEmpty()); |
| 65 | |
Ben Murdoch | 591b958 | 2013-07-10 11:41:44 +0100 | [diff] [blame] | 66 | SVGGraphicsElement* element = toSVGGraphicsElement(node()); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 67 | updatePathFromGraphicsElement(element, path()); |
| 68 | processMarkerPositions(); |
| 69 | |
| 70 | m_fillBoundingBox = calculateObjectBoundingBox(); |
| 71 | m_strokeBoundingBox = calculateStrokeBoundingBox(); |
| 72 | } |
| 73 | |
| 74 | bool RenderSVGShape::isEmpty() const |
| 75 | { |
| 76 | return path().isEmpty(); |
| 77 | } |
| 78 | |
| 79 | void RenderSVGShape::fillShape(GraphicsContext* context) const |
| 80 | { |
| 81 | context->fillPath(path()); |
| 82 | } |
| 83 | |
| 84 | void RenderSVGShape::strokeShape(GraphicsContext* context) const |
| 85 | { |
| 86 | ASSERT(m_path); |
| 87 | Path* usePath = m_path.get(); |
| 88 | |
| 89 | if (hasNonScalingStroke()) |
| 90 | usePath = nonScalingStrokePath(usePath, nonScalingStrokeTransform()); |
| 91 | |
| 92 | context->strokePath(*usePath); |
| 93 | } |
| 94 | |
| 95 | bool RenderSVGShape::shapeDependentStrokeContains(const FloatPoint& point) |
| 96 | { |
| 97 | ASSERT(m_path); |
Torne (Richard Coles) | 521d96e | 2013-06-19 11:58:24 +0100 | [diff] [blame] | 98 | StrokeData strokeData; |
| 99 | SVGRenderSupport::applyStrokeStyleToStrokeData(&strokeData, style(), this); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 100 | |
| 101 | if (hasNonScalingStroke()) { |
| 102 | AffineTransform nonScalingTransform = nonScalingStrokeTransform(); |
| 103 | Path* usePath = nonScalingStrokePath(m_path.get(), nonScalingTransform); |
| 104 | |
Torne (Richard Coles) | 521d96e | 2013-06-19 11:58:24 +0100 | [diff] [blame] | 105 | return usePath->strokeContains(nonScalingTransform.mapPoint(point), strokeData); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 106 | } |
| 107 | |
Torne (Richard Coles) | 521d96e | 2013-06-19 11:58:24 +0100 | [diff] [blame] | 108 | return m_path->strokeContains(point, strokeData); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 109 | } |
| 110 | |
| 111 | bool RenderSVGShape::shapeDependentFillContains(const FloatPoint& point, const WindRule fillRule) const |
| 112 | { |
| 113 | return path().contains(point, fillRule); |
| 114 | } |
| 115 | |
| 116 | bool RenderSVGShape::fillContains(const FloatPoint& point, bool requiresFill, const WindRule fillRule) |
| 117 | { |
| 118 | if (!m_fillBoundingBox.contains(point)) |
| 119 | return false; |
| 120 | |
Ben Murdoch | 8375017 | 2013-07-24 10:36:59 +0100 | [diff] [blame] | 121 | StyleColor fallbackColor; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 122 | if (requiresFill && !RenderSVGResource::fillPaintingResource(this, style(), fallbackColor)) |
| 123 | return false; |
| 124 | |
| 125 | return shapeDependentFillContains(point, fillRule); |
| 126 | } |
| 127 | |
| 128 | bool RenderSVGShape::strokeContains(const FloatPoint& point, bool requiresStroke) |
| 129 | { |
| 130 | if (!strokeBoundingBox().contains(point)) |
| 131 | return false; |
| 132 | |
Ben Murdoch | 8375017 | 2013-07-24 10:36:59 +0100 | [diff] [blame] | 133 | StyleColor fallbackColor; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 134 | if (requiresStroke && !RenderSVGResource::strokePaintingResource(this, style(), fallbackColor)) |
| 135 | return false; |
| 136 | |
| 137 | return shapeDependentStrokeContains(point); |
| 138 | } |
| 139 | |
| 140 | void RenderSVGShape::layout() |
| 141 | { |
| 142 | StackStats::LayoutCheckPoint layoutCheckPoint; |
| 143 | LayoutRepainter repainter(*this, SVGRenderSupport::checkForSVGRepaintDuringLayout(this) && selfNeedsLayout()); |
Ben Murdoch | 591b958 | 2013-07-10 11:41:44 +0100 | [diff] [blame] | 144 | SVGGraphicsElement* element = toSVGGraphicsElement(node()); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 145 | |
| 146 | bool updateCachedBoundariesInParents = false; |
| 147 | |
| 148 | if (m_needsShapeUpdate || m_needsBoundariesUpdate) { |
| 149 | updateShapeFromElement(); |
| 150 | m_needsShapeUpdate = false; |
| 151 | updateRepaintBoundingBox(); |
| 152 | m_needsBoundariesUpdate = false; |
| 153 | updateCachedBoundariesInParents = true; |
| 154 | } |
| 155 | |
| 156 | if (m_needsTransformUpdate) { |
| 157 | m_localTransform = element->animatedLocalTransform(); |
| 158 | m_needsTransformUpdate = false; |
| 159 | updateCachedBoundariesInParents = true; |
| 160 | } |
| 161 | |
| 162 | // Invalidate all resources of this client if our layout changed. |
| 163 | if (everHadLayout() && selfNeedsLayout()) |
| 164 | SVGResourcesCache::clientLayoutChanged(this); |
| 165 | |
| 166 | // If our bounds changed, notify the parents. |
| 167 | if (updateCachedBoundariesInParents) |
| 168 | RenderSVGModelObject::setNeedsBoundariesUpdate(); |
| 169 | |
| 170 | repainter.repaintAfterLayout(); |
| 171 | setNeedsLayout(false); |
| 172 | } |
| 173 | |
| 174 | Path* RenderSVGShape::nonScalingStrokePath(const Path* path, const AffineTransform& strokeTransform) const |
| 175 | { |
| 176 | DEFINE_STATIC_LOCAL(Path, tempPath, ()); |
| 177 | |
| 178 | tempPath = *path; |
| 179 | tempPath.transform(strokeTransform); |
| 180 | |
| 181 | return &tempPath; |
| 182 | } |
| 183 | |
| 184 | bool RenderSVGShape::setupNonScalingStrokeContext(AffineTransform& strokeTransform, GraphicsContextStateSaver& stateSaver) |
| 185 | { |
| 186 | if (!strokeTransform.isInvertible()) |
| 187 | return false; |
| 188 | |
| 189 | stateSaver.save(); |
| 190 | stateSaver.context()->concatCTM(strokeTransform.inverse()); |
| 191 | return true; |
| 192 | } |
| 193 | |
| 194 | AffineTransform RenderSVGShape::nonScalingStrokeTransform() const |
| 195 | { |
Ben Murdoch | 591b958 | 2013-07-10 11:41:44 +0100 | [diff] [blame] | 196 | SVGGraphicsElement* element = toSVGGraphicsElement(node()); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 197 | return element->getScreenCTM(SVGLocatable::DisallowStyleUpdate); |
| 198 | } |
| 199 | |
| 200 | bool RenderSVGShape::shouldGenerateMarkerPositions() const |
| 201 | { |
| 202 | if (!style()->svgStyle()->hasMarkers()) |
| 203 | return false; |
| 204 | |
Ben Murdoch | 591b958 | 2013-07-10 11:41:44 +0100 | [diff] [blame] | 205 | SVGGraphicsElement* element = toSVGGraphicsElement(node()); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 206 | if (!element->supportsMarkers()) |
| 207 | return false; |
| 208 | |
| 209 | SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(this); |
| 210 | if (!resources) |
| 211 | return false; |
| 212 | |
| 213 | return resources->markerStart() || resources->markerMid() || resources->markerEnd(); |
| 214 | } |
| 215 | |
| 216 | void RenderSVGShape::fillShape(RenderStyle* style, GraphicsContext* context) |
| 217 | { |
Ben Murdoch | 8375017 | 2013-07-24 10:36:59 +0100 | [diff] [blame] | 218 | StyleColor fallbackColor; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 219 | if (RenderSVGResource* fillPaintingResource = RenderSVGResource::fillPaintingResource(this, style, fallbackColor)) { |
| 220 | if (fillPaintingResource->applyResource(this, style, context, ApplyToFillMode)) |
| 221 | fillPaintingResource->postApplyResource(this, context, ApplyToFillMode, 0, this); |
| 222 | else if (fallbackColor.isValid()) { |
| 223 | RenderSVGResourceSolidColor* fallbackResource = RenderSVGResource::sharedSolidPaintingResource(); |
Ben Murdoch | 8375017 | 2013-07-24 10:36:59 +0100 | [diff] [blame] | 224 | fallbackResource->setColor(fallbackColor.color()); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 225 | if (fallbackResource->applyResource(this, style, context, ApplyToFillMode)) |
| 226 | fallbackResource->postApplyResource(this, context, ApplyToFillMode, 0, this); |
| 227 | } |
| 228 | } |
| 229 | } |
| 230 | |
| 231 | void RenderSVGShape::strokeShape(RenderStyle* style, GraphicsContext* context) |
| 232 | { |
Ben Murdoch | 8375017 | 2013-07-24 10:36:59 +0100 | [diff] [blame] | 233 | StyleColor fallbackColor; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 234 | if (RenderSVGResource* strokePaintingResource = RenderSVGResource::strokePaintingResource(this, style, fallbackColor)) { |
| 235 | if (strokePaintingResource->applyResource(this, style, context, ApplyToStrokeMode)) |
| 236 | strokePaintingResource->postApplyResource(this, context, ApplyToStrokeMode, 0, this); |
| 237 | else if (fallbackColor.isValid()) { |
| 238 | RenderSVGResourceSolidColor* fallbackResource = RenderSVGResource::sharedSolidPaintingResource(); |
Ben Murdoch | 8375017 | 2013-07-24 10:36:59 +0100 | [diff] [blame] | 239 | fallbackResource->setColor(fallbackColor.color()); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 240 | if (fallbackResource->applyResource(this, style, context, ApplyToStrokeMode)) |
| 241 | fallbackResource->postApplyResource(this, context, ApplyToStrokeMode, 0, this); |
| 242 | } |
| 243 | } |
| 244 | } |
| 245 | |
| 246 | void RenderSVGShape::fillAndStrokeShape(GraphicsContext* context) |
| 247 | { |
| 248 | RenderStyle* style = this->style(); |
| 249 | |
| 250 | fillShape(style, context); |
| 251 | |
| 252 | if (!style->svgStyle()->hasVisibleStroke()) |
| 253 | return; |
| 254 | |
| 255 | GraphicsContextStateSaver stateSaver(*context, false); |
| 256 | |
| 257 | if (hasNonScalingStroke()) { |
| 258 | AffineTransform nonScalingTransform = nonScalingStrokeTransform(); |
| 259 | if (!setupNonScalingStrokeContext(nonScalingTransform, stateSaver)) |
| 260 | return; |
| 261 | } |
| 262 | |
| 263 | strokeShape(style, context); |
| 264 | } |
| 265 | |
| 266 | void RenderSVGShape::paint(PaintInfo& paintInfo, const LayoutPoint&) |
| 267 | { |
Torne (Richard Coles) | 5267f70 | 2013-06-11 10:57:24 +0100 | [diff] [blame] | 268 | ANNOTATE_GRAPHICS_CONTEXT(paintInfo, this); |
| 269 | |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 270 | if (paintInfo.context->paintingDisabled() || style()->visibility() == HIDDEN || isEmpty()) |
| 271 | return; |
| 272 | FloatRect boundingBox = repaintRectInLocalCoordinates(); |
| 273 | if (!SVGRenderSupport::paintInfoIntersectsRepaintRect(boundingBox, m_localTransform, paintInfo)) |
| 274 | return; |
| 275 | |
| 276 | PaintInfo childPaintInfo(paintInfo); |
| 277 | bool drawsOutline = style()->outlineWidth() && (childPaintInfo.phase == PaintPhaseOutline || childPaintInfo.phase == PaintPhaseSelfOutline); |
| 278 | if (drawsOutline || childPaintInfo.phase == PaintPhaseForeground) { |
| 279 | GraphicsContextStateSaver stateSaver(*childPaintInfo.context); |
| 280 | childPaintInfo.applyTransform(m_localTransform); |
| 281 | |
| 282 | if (childPaintInfo.phase == PaintPhaseForeground) { |
| 283 | SVGRenderingContext renderingContext(this, childPaintInfo); |
| 284 | |
| 285 | if (renderingContext.isRenderingPrepared()) { |
| 286 | const SVGRenderStyle* svgStyle = style()->svgStyle(); |
| 287 | if (svgStyle->shapeRendering() == SR_CRISPEDGES) |
| 288 | childPaintInfo.context->setShouldAntialias(false); |
| 289 | |
| 290 | fillAndStrokeShape(childPaintInfo.context); |
| 291 | if (!m_markerPositions.isEmpty()) |
| 292 | drawMarkers(childPaintInfo); |
| 293 | } |
| 294 | } |
| 295 | |
| 296 | if (drawsOutline) |
| 297 | paintOutline(childPaintInfo, IntRect(boundingBox)); |
| 298 | } |
| 299 | } |
| 300 | |
| 301 | // This method is called from inside paintOutline() since we call paintOutline() |
| 302 | // while transformed to our coord system, return local coords |
| 303 | void RenderSVGShape::addFocusRingRects(Vector<IntRect>& rects, const LayoutPoint&, const RenderLayerModelObject*) |
| 304 | { |
| 305 | IntRect rect = enclosingIntRect(repaintRectInLocalCoordinates()); |
| 306 | if (!rect.isEmpty()) |
| 307 | rects.append(rect); |
| 308 | } |
| 309 | |
| 310 | bool RenderSVGShape::nodeAtFloatPoint(const HitTestRequest& request, HitTestResult& result, const FloatPoint& pointInParent, HitTestAction hitTestAction) |
| 311 | { |
| 312 | // We only draw in the forground phase, so we only hit-test then. |
| 313 | if (hitTestAction != HitTestForeground) |
| 314 | return false; |
| 315 | |
| 316 | FloatPoint localPoint = m_localTransform.inverse().mapPoint(pointInParent); |
| 317 | |
| 318 | if (!SVGRenderSupport::pointInClippingArea(this, localPoint)) |
| 319 | return false; |
| 320 | |
| 321 | PointerEventsHitRules hitRules(PointerEventsHitRules::SVG_PATH_HITTESTING, request, style()->pointerEvents()); |
| 322 | bool isVisible = (style()->visibility() == VISIBLE); |
| 323 | if (isVisible || !hitRules.requireVisible) { |
| 324 | const SVGRenderStyle* svgStyle = style()->svgStyle(); |
| 325 | WindRule fillRule = svgStyle->fillRule(); |
| 326 | if (request.svgClipContent()) |
| 327 | fillRule = svgStyle->clipRule(); |
| 328 | if ((hitRules.canHitStroke && (svgStyle->hasStroke() || !hitRules.requireStroke) && strokeContains(localPoint, hitRules.requireStroke)) |
| 329 | || (hitRules.canHitFill && (svgStyle->hasFill() || !hitRules.requireFill) && fillContains(localPoint, hitRules.requireFill, fillRule))) { |
| 330 | updateHitTestResult(result, roundedLayoutPoint(localPoint)); |
| 331 | return true; |
| 332 | } |
| 333 | } |
| 334 | return false; |
| 335 | } |
| 336 | |
| 337 | static inline RenderSVGResourceMarker* markerForType(SVGMarkerType type, RenderSVGResourceMarker* markerStart, RenderSVGResourceMarker* markerMid, RenderSVGResourceMarker* markerEnd) |
| 338 | { |
| 339 | switch (type) { |
| 340 | case StartMarker: |
| 341 | return markerStart; |
| 342 | case MidMarker: |
| 343 | return markerMid; |
| 344 | case EndMarker: |
| 345 | return markerEnd; |
| 346 | } |
| 347 | |
| 348 | ASSERT_NOT_REACHED(); |
| 349 | return 0; |
| 350 | } |
| 351 | |
| 352 | FloatRect RenderSVGShape::markerRect(float strokeWidth) const |
| 353 | { |
| 354 | ASSERT(!m_markerPositions.isEmpty()); |
| 355 | |
| 356 | SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(this); |
| 357 | ASSERT(resources); |
| 358 | |
| 359 | RenderSVGResourceMarker* markerStart = resources->markerStart(); |
| 360 | RenderSVGResourceMarker* markerMid = resources->markerMid(); |
| 361 | RenderSVGResourceMarker* markerEnd = resources->markerEnd(); |
| 362 | ASSERT(markerStart || markerMid || markerEnd); |
| 363 | |
| 364 | FloatRect boundaries; |
| 365 | unsigned size = m_markerPositions.size(); |
| 366 | for (unsigned i = 0; i < size; ++i) { |
| 367 | if (RenderSVGResourceMarker* marker = markerForType(m_markerPositions[i].type, markerStart, markerMid, markerEnd)) |
| 368 | boundaries.unite(marker->markerBoundaries(marker->markerTransformation(m_markerPositions[i].origin, m_markerPositions[i].angle, strokeWidth))); |
| 369 | } |
| 370 | return boundaries; |
| 371 | } |
| 372 | |
| 373 | FloatRect RenderSVGShape::calculateObjectBoundingBox() const |
| 374 | { |
| 375 | return path().boundingRect(); |
| 376 | } |
| 377 | |
| 378 | FloatRect RenderSVGShape::calculateStrokeBoundingBox() const |
| 379 | { |
| 380 | ASSERT(m_path); |
| 381 | FloatRect strokeBoundingBox = m_fillBoundingBox; |
| 382 | |
Torne (Richard Coles) | 521d96e | 2013-06-19 11:58:24 +0100 | [diff] [blame] | 383 | if (style()->svgStyle()->hasStroke()) { |
| 384 | StrokeData strokeData; |
| 385 | SVGRenderSupport::applyStrokeStyleToStrokeData(&strokeData, style(), this); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 386 | if (hasNonScalingStroke()) { |
| 387 | AffineTransform nonScalingTransform = nonScalingStrokeTransform(); |
| 388 | if (nonScalingTransform.isInvertible()) { |
| 389 | Path* usePath = nonScalingStrokePath(m_path.get(), nonScalingTransform); |
Torne (Richard Coles) | 521d96e | 2013-06-19 11:58:24 +0100 | [diff] [blame] | 390 | FloatRect strokeBoundingRect = usePath->strokeBoundingRect(strokeData); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 391 | strokeBoundingRect = nonScalingTransform.inverse().mapRect(strokeBoundingRect); |
| 392 | strokeBoundingBox.unite(strokeBoundingRect); |
| 393 | } |
Torne (Richard Coles) | 521d96e | 2013-06-19 11:58:24 +0100 | [diff] [blame] | 394 | } else { |
| 395 | strokeBoundingBox.unite(path().strokeBoundingRect(strokeData)); |
| 396 | } |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 397 | } |
| 398 | |
| 399 | if (!m_markerPositions.isEmpty()) |
| 400 | strokeBoundingBox.unite(markerRect(strokeWidth())); |
| 401 | |
| 402 | return strokeBoundingBox; |
| 403 | } |
| 404 | |
| 405 | void RenderSVGShape::updateRepaintBoundingBox() |
| 406 | { |
| 407 | m_repaintBoundingBoxExcludingShadow = strokeBoundingBox(); |
| 408 | SVGRenderSupport::intersectRepaintRectWithResources(this, m_repaintBoundingBoxExcludingShadow); |
| 409 | |
| 410 | m_repaintBoundingBox = m_repaintBoundingBoxExcludingShadow; |
| 411 | SVGRenderSupport::intersectRepaintRectWithShadows(this, m_repaintBoundingBox); |
| 412 | } |
| 413 | |
| 414 | float RenderSVGShape::strokeWidth() const |
| 415 | { |
| 416 | SVGElement* svgElement = toSVGElement(node()); |
| 417 | SVGLengthContext lengthContext(svgElement); |
| 418 | return style()->svgStyle()->strokeWidth().value(lengthContext); |
| 419 | } |
| 420 | |
| 421 | bool RenderSVGShape::hasSmoothStroke() const |
| 422 | { |
| 423 | const SVGRenderStyle* svgStyle = style()->svgStyle(); |
| 424 | return svgStyle->strokeDashArray().isEmpty() |
| 425 | && svgStyle->strokeMiterLimit() == svgStyle->initialStrokeMiterLimit() |
| 426 | && svgStyle->joinStyle() == svgStyle->initialJoinStyle() |
| 427 | && svgStyle->capStyle() == svgStyle->initialCapStyle(); |
| 428 | } |
| 429 | |
| 430 | void RenderSVGShape::drawMarkers(PaintInfo& paintInfo) |
| 431 | { |
| 432 | ASSERT(!m_markerPositions.isEmpty()); |
| 433 | |
| 434 | SVGResources* resources = SVGResourcesCache::cachedResourcesForRenderObject(this); |
| 435 | if (!resources) |
| 436 | return; |
| 437 | |
| 438 | RenderSVGResourceMarker* markerStart = resources->markerStart(); |
| 439 | RenderSVGResourceMarker* markerMid = resources->markerMid(); |
| 440 | RenderSVGResourceMarker* markerEnd = resources->markerEnd(); |
| 441 | if (!markerStart && !markerMid && !markerEnd) |
| 442 | return; |
| 443 | |
| 444 | float strokeWidth = this->strokeWidth(); |
| 445 | unsigned size = m_markerPositions.size(); |
| 446 | for (unsigned i = 0; i < size; ++i) { |
| 447 | if (RenderSVGResourceMarker* marker = markerForType(m_markerPositions[i].type, markerStart, markerMid, markerEnd)) |
| 448 | marker->draw(paintInfo, marker->markerTransformation(m_markerPositions[i].origin, m_markerPositions[i].angle, strokeWidth)); |
| 449 | } |
| 450 | } |
| 451 | |
| 452 | void RenderSVGShape::processMarkerPositions() |
| 453 | { |
| 454 | m_markerPositions.clear(); |
| 455 | |
| 456 | if (!shouldGenerateMarkerPositions()) |
| 457 | return; |
| 458 | |
| 459 | ASSERT(m_path); |
| 460 | |
| 461 | SVGMarkerData markerData(m_markerPositions); |
| 462 | m_path->apply(&markerData, SVGMarkerData::updateFromPathElement); |
| 463 | markerData.pathIsDone(); |
| 464 | } |
| 465 | |
| 466 | } |