1 /* 2 * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann (at) kde.org> 3 * Copyright (C) 2004, 2005, 2007 Rob Buis <buis (at) kde.org> 4 * Copyright (C) 2009 Google, Inc. 5 * Copyright (C) 2009 Apple 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 #ifndef RenderSVGViewportContainer_h 24 #define RenderSVGViewportContainer_h 25 26 #include "core/rendering/svg/RenderSVGContainer.h" 27 28 namespace WebCore { 29 30 // This is used for non-root <svg> elements and <marker> elements, neither of which are SVGTransformable 31 // thus we inherit from RenderSVGContainer instead of RenderSVGTransformableContainer 32 class RenderSVGViewportContainer FINAL : public RenderSVGContainer { 33 public: 34 explicit RenderSVGViewportContainer(SVGElement*); 35 FloatRect viewport() const { return m_viewport; } 36 37 bool isLayoutSizeChanged() const { return m_isLayoutSizeChanged; } 38 virtual bool didTransformToRootUpdate() { return m_didTransformToRootUpdate; } 39 40 virtual void determineIfLayoutSizeChanged(); 41 virtual void setNeedsTransformUpdate() { m_needsTransformUpdate = true; } 42 43 virtual void paint(PaintInfo&, const LayoutPoint&) OVERRIDE; 44 45 private: 46 virtual bool isSVGViewportContainer() const { return true; } 47 virtual const char* renderName() const { return "RenderSVGViewportContainer"; } 48 49 AffineTransform viewportTransform() const; 50 virtual const AffineTransform& localToParentTransform() const { return m_localToParentTransform; } 51 52 virtual void calcViewport(); 53 virtual bool calculateLocalTransform(); 54 55 virtual void applyViewportClip(PaintInfo&); 56 virtual bool pointIsInsideViewportClip(const FloatPoint& pointInParent); 57 58 FloatRect m_viewport; 59 mutable AffineTransform m_localToParentTransform; 60 bool m_didTransformToRootUpdate : 1; 61 bool m_isLayoutSizeChanged : 1; 62 bool m_needsTransformUpdate : 1; 63 }; 64 65 inline RenderSVGViewportContainer* toRenderSVGViewportContainer(RenderObject* object) 66 { 67 ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isSVGViewportContainer()); 68 return static_cast<RenderSVGViewportContainer*>(object); 69 } 70 71 inline const RenderSVGViewportContainer* toRenderSVGViewportContainer(const RenderObject* object) 72 { 73 ASSERT_WITH_SECURITY_IMPLICATION(!object || object->isSVGViewportContainer()); 74 return static_cast<const RenderSVGViewportContainer*>(object); 75 } 76 77 // This will catch anyone doing an unnecessary cast. 78 void toRenderSVGViewportContainer(const RenderSVGViewportContainer*); 79 80 } // namespace WebCore 81 82 #endif // RenderSVGViewportContainer_h 83
