15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/* 25c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 2004, 2005, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org> 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 2004, 2005, 2006, 2007, 2008 Rob Buis <buis@kde.org> 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved. 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * This library is free software; you can redistribute it and/or 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * modify it under the terms of the GNU Library General Public 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * License as published by the Free Software Foundation; either 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * version 2 of the License, or (at your option) any later version. 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * This library is distributed in the hope that it will be useful, 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * but WITHOUT ANY WARRANTY; without even the implied warranty of 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Library General Public License for more details. 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * You should have received a copy of the GNU Library General Public License 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * along with this library; see the file COPYING.LIB. If not, write to 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Boston, MA 02110-1301, USA. 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include "config.h" 235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 2453e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/rendering/svg/RenderSVGResourceMarker.h" 255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 265d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles)#include "core/rendering/PaintInfo.h" 2753e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/rendering/svg/RenderSVGContainer.h" 2853e740f4a82e17f3ae59772501622dc354e42336Torne (Richard Coles)#include "core/rendering/svg/SVGRenderSupport.h" 29a854de003a23bf3c7f95ec0f8154ada64092ff5cTorne (Richard Coles)#include "platform/graphics/GraphicsContextStateSaver.h" 305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 311e202183a5dc46166763171984b285173f8585e5Torne (Richard Coles)#include "wtf/TemporaryChange.h" 321e202183a5dc46166763171984b285173f8585e5Torne (Richard Coles) 33c1847b1379d12d0e05df27436bf19a9b1bf12deaTorne (Richard Coles)namespace blink { 345c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 35f79f16f17ddc4f842d7b7a38603e280e94be826aTorne (Richard Coles)const RenderSVGResourceType RenderSVGResourceMarker::s_resourceType = MarkerResourceType; 365c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 375c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)RenderSVGResourceMarker::RenderSVGResourceMarker(SVGMarkerElement* node) 385c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) : RenderSVGResourceContainer(node) 395c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 405c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 415c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 425c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)RenderSVGResourceMarker::~RenderSVGResourceMarker() 435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 445c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 455c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void RenderSVGResourceMarker::layout() 475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 481e202183a5dc46166763171984b285173f8585e5Torne (Richard Coles) ASSERT(needsLayout()); 491e202183a5dc46166763171984b285173f8585e5Torne (Richard Coles) if (m_isInLayout) 501e202183a5dc46166763171984b285173f8585e5Torne (Richard Coles) return; 511e202183a5dc46166763171984b285173f8585e5Torne (Richard Coles) 521e202183a5dc46166763171984b285173f8585e5Torne (Richard Coles) TemporaryChange<bool> inLayoutChange(m_isInLayout, true); 531e202183a5dc46166763171984b285173f8585e5Torne (Richard Coles) 545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // RenderSVGHiddenContainer overwrites layout(). We need the 555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // layouting of RenderSVGContainer for calculating local 56e38fbeeb576b5094e34e038ab88d9d6a5c5c2214Torne (Richard Coles) // transformations and paint invalidation. 575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) RenderSVGContainer::layout(); 5851b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles) 5951b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles) clearInvalidationMask(); 605c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 615c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void RenderSVGResourceMarker::removeAllClientsFromCache(bool markForInvalidation) 635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 645c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) markAllClientsForInvalidation(markForInvalidation ? LayoutAndBoundariesInvalidation : ParentOnlyInvalidation); 655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void RenderSVGResourceMarker::removeClientFromCache(RenderObject* client, bool markForInvalidation) 685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 695c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(client); 705c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) markClientForInvalidation(client, markForInvalidation ? BoundariesInvalidation : ParentOnlyInvalidation); 715c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 735c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void RenderSVGResourceMarker::applyViewportClip(PaintInfo& paintInfo) 745c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 755c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (SVGRenderSupport::isOverflowHidden(this)) 765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) paintInfo.context->clip(m_viewport); 775c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 785c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 795c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)FloatRect RenderSVGResourceMarker::markerBoundaries(const AffineTransform& markerTransformation) const 805c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 815d92fedcae5e801a8b224de090094f2d9df0b54aTorne (Richard Coles) FloatRect coordinates = RenderSVGContainer::paintInvalidationRectInLocalCoordinates(); 825c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 83e38fbeeb576b5094e34e038ab88d9d6a5c5c2214Torne (Richard Coles) // Map paint invalidation rect into parent coordinate space, in which the marker boundaries have to be evaluated 845c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) coordinates = localToParentTransform().mapRect(coordinates); 855c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 865c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return markerTransformation.mapRect(coordinates); 875c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 885c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 895c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)const AffineTransform& RenderSVGResourceMarker::localToParentTransform() const 905c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 915c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_localToParentTransform = AffineTransform::translation(m_viewport.x(), m_viewport.y()) * viewportTransform(); 925c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return m_localToParentTransform; 935c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // If this class were ever given a localTransform(), then the above would read: 945c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // return viewportTranslation * localTransform() * viewportTransform(); 955c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 965c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 975c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)FloatPoint RenderSVGResourceMarker::referencePoint() const 985c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 998abfc5808a4e34d6e03867af8bc440dee641886fTorne (Richard Coles) SVGMarkerElement* marker = toSVGMarkerElement(element()); 1005c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(marker); 1015c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1025c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) SVGLengthContext lengthContext(marker); 10309380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) return FloatPoint(marker->refX()->currentValue()->value(lengthContext), marker->refY()->currentValue()->value(lengthContext)); 1045c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1055c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1065c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)float RenderSVGResourceMarker::angle() const 1075c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 1088abfc5808a4e34d6e03867af8bc440dee641886fTorne (Richard Coles) SVGMarkerElement* marker = toSVGMarkerElement(element()); 1095c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(marker); 1105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) float angle = -1; 112d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) if (marker->orientType()->currentValue()->enumValue() == SVGMarkerOrientAngle) 113d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) angle = marker->orientAngle()->currentValue()->value(); 1145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return angle; 1165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)AffineTransform RenderSVGResourceMarker::markerTransformation(const FloatPoint& origin, float autoAngle, float strokeWidth) const 1195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 1208abfc5808a4e34d6e03867af8bc440dee641886fTorne (Richard Coles) SVGMarkerElement* marker = toSVGMarkerElement(element()); 1215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(marker); 1225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) float markerAngle = angle(); 124d5428f32f5d1719f774f62e19147104ca245a3abTorne (Richard Coles) bool useStrokeWidth = marker->markerUnits()->currentValue()->enumValue() == SVGMarkerUnitsStrokeWidth; 1255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) AffineTransform transform; 1275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) transform.translate(origin.x(), origin.y()); 1285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) transform.rotate(markerAngle == -1 ? autoAngle : markerAngle); 1295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) transform = markerContentTransformation(transform, referencePoint(), useStrokeWidth ? strokeWidth : -1); 1305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return transform; 1315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void RenderSVGResourceMarker::draw(PaintInfo& paintInfo, const AffineTransform& transform) 1345c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 13551b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles) clearInvalidationMask(); 13651b2906e11752df6c18351cf520e30522d3b53a1Torne (Richard Coles) 137926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) // An empty viewBox disables rendering. 1388abfc5808a4e34d6e03867af8bc440dee641886fTorne (Richard Coles) SVGMarkerElement* marker = toSVGMarkerElement(element()); 139926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) ASSERT(marker); 14009380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) if (marker->hasAttribute(SVGNames::viewBoxAttr) && marker->viewBox()->currentValue()->isValid() && marker->viewBox()->currentValue()->value().isEmpty()) 141926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) return; 142926b001d589ce2f10facb93dd4b87578ea35a855Torne (Richard Coles) 1435c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) PaintInfo info(paintInfo); 14409380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) GraphicsContextStateSaver stateSaver(*info.context, false); 1457242dc3dbeb210b5e876a3c42d1ec1a667fc621aPrimiano Tucci info.applyTransform(transform, &stateSaver); 1465c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) RenderSVGContainer::paint(info, IntPoint()); 1475c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1485c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1495c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)AffineTransform RenderSVGResourceMarker::markerContentTransformation(const AffineTransform& contentTransformation, const FloatPoint& origin, float strokeWidth) const 1505c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 1515c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) // The 'origin' coordinate maps to SVGs refX/refY, given in coordinates relative to the viewport established by the marker 1525c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) FloatPoint mappedOrigin = viewportTransform().mapPoint(origin); 1535c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1545c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) AffineTransform transformation = contentTransformation; 1555c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (strokeWidth != -1) 1565c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) transformation.scaleNonUniform(strokeWidth, strokeWidth); 1575c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1585c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) transformation.translate(-mappedOrigin.x(), -mappedOrigin.y()); 1595c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return transformation; 1605c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1615c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1625c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)AffineTransform RenderSVGResourceMarker::viewportTransform() const 1635c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 1648abfc5808a4e34d6e03867af8bc440dee641886fTorne (Richard Coles) SVGMarkerElement* marker = toSVGMarkerElement(element()); 1655c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(marker); 1665c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1675c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return marker->viewBoxToViewTransform(m_viewport.width(), m_viewport.height()); 1685c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1695c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1705c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)void RenderSVGResourceMarker::calcViewport() 1715c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles){ 1725c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) if (!selfNeedsLayout()) 1735c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) return; 1745c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1758abfc5808a4e34d6e03867af8bc440dee641886fTorne (Richard Coles) SVGMarkerElement* marker = toSVGMarkerElement(element()); 1765c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) ASSERT(marker); 17702772c6a72f1ee0b226341a4f4439970c29fc861Ben Murdoch 1785c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) SVGLengthContext lengthContext(marker); 17909380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) float w = marker->markerWidth()->currentValue()->value(lengthContext); 18009380295ba73501a205346becac22c6978e4671dTorne (Richard Coles) float h = marker->markerHeight()->currentValue()->value(lengthContext); 1815c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) m_viewport = FloatRect(0, 0, w, h); 1825c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 1835c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 1845c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)} 185