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| 1 /* | 1 /* |
| 2 * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org> | 2 * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org> |
| 3 * Copyright (C) 2004, 2005, 2007, 2008 Rob Buis <buis@kde.org> | 3 * Copyright (C) 2004, 2005, 2007, 2008 Rob Buis <buis@kde.org> |
| 4 * Copyright (C) 2007 Eric Seidel <eric@webkit.org> | 4 * Copyright (C) 2007 Eric Seidel <eric@webkit.org> |
| 5 * Copyright (C) 2009 Google, Inc. All rights reserved. | 5 * Copyright (C) 2009 Google, Inc. All rights reserved. |
| 6 * Copyright (C) 2009 Dirk Schulze <krit@webkit.org> | 6 * Copyright (C) 2009 Dirk Schulze <krit@webkit.org> |
| 7 * | 7 * |
| 8 * This library is free software; you can redistribute it and/or | 8 * This library is free software; you can redistribute it and/or |
| 9 * modify it under the terms of the GNU Library General Public | 9 * modify it under the terms of the GNU Library General Public |
| 10 * License as published by the Free Software Foundation; either | 10 * License as published by the Free Software Foundation; either |
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| 36 : LayoutSVGModelObject(node), | 36 : LayoutSVGModelObject(node), |
| 37 m_objectBoundingBoxValid(false), | 37 m_objectBoundingBoxValid(false), |
| 38 m_needsBoundariesUpdate(true), | 38 m_needsBoundariesUpdate(true), |
| 39 m_didScreenScaleFactorChange(false), | 39 m_didScreenScaleFactorChange(false), |
| 40 m_hasNonIsolatedBlendingDescendants(false), | 40 m_hasNonIsolatedBlendingDescendants(false), |
| 41 m_hasNonIsolatedBlendingDescendantsDirty(false) {} | 41 m_hasNonIsolatedBlendingDescendantsDirty(false) {} |
| 42 | 42 |
| 43 LayoutSVGContainer::~LayoutSVGContainer() {} | 43 LayoutSVGContainer::~LayoutSVGContainer() {} |
| 44 | 44 |
| 45 void LayoutSVGContainer::layout() { | 45 void LayoutSVGContainer::layout() { |
| 46 ASSERT(needsLayout()); | 46 DCHECK(needsLayout()); |
| 47 LayoutAnalyzer::Scope analyzer(*this); | 47 LayoutAnalyzer::Scope analyzer(*this); |
| 48 | 48 |
| 49 // Update the local transform in subclasses. | 49 // Update the local transform in subclasses. |
| 50 SVGTransformChange transformChange = calculateLocalTransform(); | 50 SVGTransformChange transformChange = calculateLocalTransform(); |
| 51 m_didScreenScaleFactorChange = | 51 m_didScreenScaleFactorChange = |
| 52 transformChange == SVGTransformChange::Full || | 52 transformChange == SVGTransformChange::Full || |
| 53 SVGLayoutSupport::screenScaleFactorChanged(parent()); | 53 SVGLayoutSupport::screenScaleFactorChanged(parent()); |
| 54 | 54 |
| 55 // When hasRelativeLengths() is false, no descendants have relative lengths | 55 // When hasRelativeLengths() is false, no descendants have relative lengths |
| 56 // (hence no one is interested in viewport size changes). | 56 // (hence no one is interested in viewport size changes). |
| 57 bool layoutSizeChanged = | 57 bool layoutSizeChanged = |
| 58 element()->hasRelativeLengths() && | 58 element()->hasRelativeLengths() && |
| 59 SVGLayoutSupport::layoutSizeOfNearestViewportChanged(this); | 59 SVGLayoutSupport::layoutSizeOfNearestViewportChanged(this); |
| 60 | 60 |
| 61 SVGLayoutSupport::layoutChildren( | 61 SVGLayoutSupport::layoutChildren( |
| 62 firstChild(), false, m_didScreenScaleFactorChange, layoutSizeChanged); | 62 firstChild(), false, m_didScreenScaleFactorChange, layoutSizeChanged); |
| 63 | 63 |
| 64 // Invalidate all resources of this client if our layout changed. | 64 // Invalidate all resources of this client if our layout changed. |
| 65 if (everHadLayout() && needsLayout()) | 65 if (everHadLayout() && needsLayout()) |
| 66 SVGResourcesCache::clientLayoutChanged(this); | 66 SVGResourcesCache::clientLayoutChanged(this); |
| 67 | 67 |
| 68 if (m_needsBoundariesUpdate || transformChange != SVGTransformChange::None) { | 68 if (m_needsBoundariesUpdate || transformChange != SVGTransformChange::None) { |
| 69 updateCachedBoundaries(); | 69 updateCachedBoundaries(); |
| 70 m_needsBoundariesUpdate = false; | 70 m_needsBoundariesUpdate = false; |
| 71 | 71 |
| 72 // If our bounds changed, notify the parents. | 72 // If our bounds changed, notify the parents. |
| 73 LayoutSVGModelObject::setNeedsBoundariesUpdate(); | 73 LayoutSVGModelObject::setNeedsBoundariesUpdate(); |
| 74 } | 74 } |
| 75 | 75 |
| 76 ASSERT(!m_needsBoundariesUpdate); | 76 DCHECK(!m_needsBoundariesUpdate); |
| 77 clearNeedsLayout(); | 77 clearNeedsLayout(); |
| 78 } | 78 } |
| 79 | 79 |
| 80 void LayoutSVGContainer::addChild(LayoutObject* child, | 80 void LayoutSVGContainer::addChild(LayoutObject* child, |
| 81 LayoutObject* beforeChild) { | 81 LayoutObject* beforeChild) { |
| 82 LayoutSVGModelObject::addChild(child, beforeChild); | 82 LayoutSVGModelObject::addChild(child, beforeChild); |
| 83 SVGResourcesCache::clientWasAddedToTree(child, child->styleRef()); | 83 SVGResourcesCache::clientWasAddedToTree(child, child->styleRef()); |
| 84 | 84 |
| 85 bool shouldIsolateDescendants = | 85 bool shouldIsolateDescendants = |
| 86 (child->isBlendingAllowed() && child->style()->hasBlendMode()) || | 86 (child->isBlendingAllowed() && child->style()->hasBlendMode()) || |
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| 218 // under the pointer (i.e., there is no target element), the event is not | 218 // under the pointer (i.e., there is no target element), the event is not |
| 219 // dispatched." | 219 // dispatched." |
| 220 return false; | 220 return false; |
| 221 } | 221 } |
| 222 | 222 |
| 223 SVGTransformChange LayoutSVGContainer::calculateLocalTransform() { | 223 SVGTransformChange LayoutSVGContainer::calculateLocalTransform() { |
| 224 return SVGTransformChange::None; | 224 return SVGTransformChange::None; |
| 225 } | 225 } |
| 226 | 226 |
| 227 } // namespace blink | 227 } // namespace blink |
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